CN103741736A - Mechanical loading mechanism of nine-rod two-freedom-degree forward-turning bucket - Google Patents
Mechanical loading mechanism of nine-rod two-freedom-degree forward-turning bucket Download PDFInfo
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- CN103741736A CN103741736A CN201310690661.7A CN201310690661A CN103741736A CN 103741736 A CN103741736 A CN 103741736A CN 201310690661 A CN201310690661 A CN 201310690661A CN 103741736 A CN103741736 A CN 103741736A
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Abstract
A mechanical loading mechanism of a nine-rod two-freedom-degree forward-turning bucket is composed of a machine frame, a movable-arm control supporting chain and a bucket control supporting chain, wherein the movable-arm control supporting chain is controlled by a first driving rod and conducts ascending or descending work on a movable arm, the bucket control supporting chain is controlled by a second driving rod and enables the bucket to turn, and loading and unloading work by the mechanical loading mechanism is functionally completed by means of mutual match of the movable-arm control supporting chain and the bucket control supporting chain. According to the mechanical loading mechanism, member bars are in revolute pair connection with one another, and therefore the defects that a traditional full-hydraulic type loading mechanism containing a sliding pair is high in cost, poor in reliability, high in maintaining cost and the like are overcome. In addition, compared with other controllable-structure type loading mechanisms, the mechanical loading mechanism is compact in structure and large in rigidity, a control system is simple, a brand new structure having excellent kinematics and dynamics performance is adopted, and reliability and dynamic stability of the loading mechanism are better.
Description
Technical field
The present invention relates to engineering machinery field, particularly the positive reversible bucket mechanical type of a kind of nine bar two-freedom loader mechanism.
Background technology
Loader is a kind of restoration in earth-rock construction machinery that is widely used in the construction projects such as road, harbour, mine, railway, and it is mainly used in the loose unpacked materials such as shovel dress soil, sandstone, also can dig operation to the slight shovel of the works such as ore, pan soil.Change that kind of different auxiliary working apparatus also can be bulldozed, the handling operation of lifting and unclassified stores.Loader is the engineering machinery being most widely used, and along with socioeconomic development, loader is more and more in the application of the occasions such as Municipal engineering, garbage-cleaning, construction work.Existing loader is mainly comprised of swing arm lifting mechanism and scraper bowl switching mechanism two parts, by boom cylinder and bucket cylinder, control the action that fulfils assignment respectively, although hydraulic system structure compactness, but hydraulic system is subject to oil overheating impact, mechanical efficiency is low, transmission stability is poor, and Hydraulic System Reliability is poor, maintenance, maintenance complexity and cost are higher.
Along with the development of theory of mechanisms and electromechanical integration, drive loader mechanism operation to become possibility with mechanical drive mode.Machinery driving efficiency is high, and existing electromechanical integration technology can overcome machine driving and easily transships the shortcomings such as destruction.But existing multiple degrees of freedom controllable type loader mechanism, mostly just existing hydraulic loader structure is carried out to simple modifications, utilize two linkages to replace the hydraulic system in hydraulic loader structure, the consideration of shortage to rod member transmission and hydraulic cylinder transmission dynamic property difference, causes mechanism's poor rigidity, and anti-overload ability is little, the shortcomings such as kinematics and dynamic performance are poor, be difficult to meet actual job needs, although solved the some shortcomings that hydraulic system exists, be difficult to be applicable to loader design and produce.
Summary of the invention
The problem that the object of the invention is to prior art existence provides the positive reversible bucket mechanical type of a kind of nine bar two-freedom loader mechanism, guaranteeing to meet under traditional loader job requirements and linkage prerequisite simple in structure, not only avoid existing fluid pressure type loader poor reliability, the shortcomings such as transmission efficiency is low, and guarantee that this mechanical type loader mechanism has kinematics, dynamic performance is good, the advantages such as control system is simple, and the rigidity of structure is large, and anti-overload ability is strong.
The present invention achieves the above object by the following technical programs:
The positive reversible bucket mechanical type of a kind of nine bar two-freedom loader mechanism, comprises frame, swing arm control side chain, scraper bowl upset side chain.
Described swing arm control side chain is comprised of swing arm, the first driving lever, first connecting rod, described swing arm is connected with frame by the first revolute pair, described first driving lever one end is connected with frame by the second revolute pair, the other end is connected with first connecting rod by the 3rd revolute pair, and first connecting rod is connected with swing arm by the 4th revolute pair.
Described scraper bowl control side chain is comprised of the second driving lever, second connecting rod, rocking arm, pull bar, scraper bowl, described second driving lever one end is connected with swing arm by the 5th revolute pair, the other end is connected with second connecting rod by the 6th revolute pair, second connecting rod is connected with rocking arm one end by the 7th revolute pair; the rocking arm other end is arranged on swing arm by the 8th revolute pair; described rocking arm is connected with pull bar one end by the 9th revolute pair; the pull bar other end is connected with scraper bowl by the tenth revolute pair, and scraper bowl is connected with swing arm by the 11 revolute pair.
Outstanding advantages of the present invention is:
1, this mechanical type loader mechanism is guaranteeing to meet under traditional loader job requirements and linkage prerequisite simple in structure, not only avoided existing fluid pressure type loader poor reliability, the shortcomings such as transmission efficiency is low, by adopting brand-new Designing Linkages, improved the reliability of shaft portion, improved the mechanical property of loader mechanism, be applicable to very much loader design and manufacture.
2, this mechanical type loader mechanism is compared with other controllable-mechanism type loader mechanisms, not only compact conformation, rigidity is large, improved the anti-overload ability of loader mechanism, and adopted the more superior new structure of kinematics and dynamic performance, make this loader mechanism reliability and dynamic stability performance better, the second driving lever is positioned on swing arm, well avoided the problem of two-degree-of-freedom controllable loading machine structure interlock, simplify the complexity of control system, be suitable for very much manufacturing large, medium and small type loader.
Accompanying drawing explanation
Fig. 1 is the positive reversible bucket mechanical type of a kind of nine bar two-freedom of the present invention loader mechanism schematic diagram.
Fig. 2 is the positive reversible bucket mechanical type of a kind of nine bar two-freedom of the present invention loader mechanism swing arm control side chain schematic diagram.
Fig. 3 is the positive reversible bucket mechanical type of a kind of nine bar two-freedom of the present invention loader mechanism scraper bowl control side chain schematic diagram.
Fig. 4 is the positive reversible bucket mechanical type of a kind of nine bar two-freedom of the present invention loader mechanism operation schematic diagram.
The specific embodiment
By accompanying drawing, technical scheme of the present invention is described further below.
Contrast Fig. 1, Fig. 2, Fig. 3, Fig. 4, the positive reversible bucket mechanical type of a kind of nine bar two-freedom loader mechanism, comprises frame 1, swing arm control side chain, scraper bowl upset side chain.
Contrast Fig. 1, Fig. 2, described swing arm control side chain is comprised of swing arm 7, the first driving lever 3, first connecting rod 5, described swing arm 7 is connected with frame 1 by the first revolute pair 19, described first driving lever 3 one end are connected with frame 1 by the second revolute pair 2, the other end is connected with first connecting rod 5 by the 3rd revolute pair 4, and first connecting rod 5 is connected with swing arm 7 by the 4th revolute pair.
Contrast Fig. 1, Fig. 3, described scraper bowl control side chain is by the second driving lever 17, second connecting rod 15, rocking arm 13, pull bar 11, scraper bowl 9 forms, described second driving lever 17 one end are connected with swing arm 7 by the 5th revolute pair 18, the other end is connected with second connecting rod 15 by the 6th revolute pair 16, second connecting rod 15 is connected with rocking arm 13 one end by the 7th revolute pair 14, rocking arm 13 other ends are arranged on swing arm 7 by the 8th revolute pair 6, described rocking arm is connected with pull bar 11 one end by the 9th revolute pair, pull bar 11 other ends are connected with scraper bowl 9 by the tenth revolute pair 10, scraper bowl 9 is connected with swing arm 7 by the 11 revolute pair 8.
Contrast Fig. 1, Fig. 2, Fig. 3, Fig. 4, the positive reversible bucket mechanical type of described a kind of nine bar two-freedom loader mechanism can be installed and can be arranged on walking chassis by frame 1, described swing arm control side chain is by the driving control of the first driving lever 3, complete lifting or the down maneuver of swing arm, described scraper bowl control side chain is by the driving control of the second driving lever 17, complete the upset operation of scraper bowl, according to actual job requirement, by cooperatively interacting of swing arm control side chain and scraper bowl control side chain, jointly complete swing arm 7 liftings, decline, the loading operation tasks such as scraper bowl 9 loadings and discharging.
Claims (1)
1. the positive reversible bucket mechanical type of a nine bar two-freedoms loader mechanism, comprises frame, swing arm control side chain, scraper bowl upset side chain, it is characterized in that:
Described swing arm control side chain is comprised of swing arm, the first driving lever, first connecting rod, described swing arm is connected with frame by the first revolute pair, described first driving lever one end is connected with frame by the second revolute pair, the other end is connected with first connecting rod by the 3rd revolute pair, first connecting rod is connected with swing arm by the 4th revolute pair
Described scraper bowl control side chain is comprised of the second driving lever, second connecting rod, rocking arm, pull bar, scraper bowl, described second driving lever one end is connected with swing arm by the 5th revolute pair, the other end is connected with second connecting rod by the 6th revolute pair, second connecting rod is connected with rocking arm one end by the 7th revolute pair; the rocking arm other end is arranged on swing arm by the 8th revolute pair; described rocking arm is connected with pull bar one end by the 9th revolute pair; the pull bar other end is connected with scraper bowl by the tenth revolute pair, and scraper bowl is connected with swing arm by the 11 revolute pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310690661.7A CN103741736A (en) | 2013-12-16 | 2013-12-16 | Mechanical loading mechanism of nine-rod two-freedom-degree forward-turning bucket |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310690661.7A CN103741736A (en) | 2013-12-16 | 2013-12-16 | Mechanical loading mechanism of nine-rod two-freedom-degree forward-turning bucket |
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| CN103741736A true CN103741736A (en) | 2014-04-23 |
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| CN201310690661.7A Pending CN103741736A (en) | 2013-12-16 | 2013-12-16 | Mechanical loading mechanism of nine-rod two-freedom-degree forward-turning bucket |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047319A (en) * | 2014-06-27 | 2014-09-17 | 广西大学 | Nine-rod loading mechanism with active metamorphic function |
| CN104452841A (en) * | 2014-11-11 | 2015-03-25 | 广西大学 | Multi-connecting-rod controllable loading mechanism with active metamorphic function |
| CN104514233A (en) * | 2014-12-12 | 2015-04-15 | 广西大学 | Mobile controllable loading mechanism with active metamorphic function |
| CN104532888A (en) * | 2014-12-12 | 2015-04-22 | 广西大学 | Multi-connecting-rod movable type loading mechanism with initiative metamorphic function |
| CN109747728A (en) * | 2017-11-07 | 2019-05-14 | 山东交通学院 | A kind of full revolute pair modularization robot shipping platform |
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| JPH08184072A (en) * | 1994-12-28 | 1996-07-16 | Yutani Heavy Ind Ltd | Structure of tilt-angle dozer device |
| JP2001193091A (en) * | 2000-01-06 | 2001-07-17 | Hiroshi Okamura | Universal arm device |
| CN101892680A (en) * | 2010-07-15 | 2010-11-24 | 广西大学 | Mechanical two-degree-of-freedom controllable loading machine |
| CN102561425A (en) * | 2011-12-27 | 2012-07-11 | 燕山大学 | Four-degree-of-freedom connecting rod working mechanism containing composite hinges |
| CN102561426A (en) * | 2012-01-12 | 2012-07-11 | 广西大学 | 3-dof (three degrees of freedom) controllable mechanism type excavator |
-
2013
- 2013-12-16 CN CN201310690661.7A patent/CN103741736A/en active Pending
Patent Citations (5)
| 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 |
| JP2001193091A (en) * | 2000-01-06 | 2001-07-17 | Hiroshi Okamura | Universal arm device |
| CN101892680A (en) * | 2010-07-15 | 2010-11-24 | 广西大学 | Mechanical two-degree-of-freedom controllable loading machine |
| CN102561425A (en) * | 2011-12-27 | 2012-07-11 | 燕山大学 | Four-degree-of-freedom connecting rod working mechanism containing composite hinges |
| CN102561426A (en) * | 2012-01-12 | 2012-07-11 | 广西大学 | 3-dof (three degrees of freedom) controllable mechanism type excavator |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047319A (en) * | 2014-06-27 | 2014-09-17 | 广西大学 | Nine-rod loading mechanism with active metamorphic function |
| CN104452841A (en) * | 2014-11-11 | 2015-03-25 | 广西大学 | Multi-connecting-rod controllable loading mechanism with active metamorphic function |
| CN104514233A (en) * | 2014-12-12 | 2015-04-15 | 广西大学 | Mobile controllable loading mechanism with active metamorphic function |
| CN104532888A (en) * | 2014-12-12 | 2015-04-22 | 广西大学 | Multi-connecting-rod movable type loading mechanism with initiative metamorphic function |
| CN109747728A (en) * | 2017-11-07 | 2019-05-14 | 山东交通学院 | A kind of full revolute pair modularization robot shipping platform |
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Application publication date: 20140423 |