CN103741734A - Forwards-overturning night-rod two-freedom-degree mechanical loading mechanism - Google Patents

Forwards-overturning night-rod two-freedom-degree mechanical loading mechanism Download PDF

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Publication number
CN103741734A
CN103741734A CN201310690280.9A CN201310690280A CN103741734A CN 103741734 A CN103741734 A CN 103741734A CN 201310690280 A CN201310690280 A CN 201310690280A CN 103741734 A CN103741734 A CN 103741734A
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CN
China
Prior art keywords
rod
revolute pair
branched chain
loading
scraper bowl
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Pending
Application number
CN201310690280.9A
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Chinese (zh)
Inventor
蔡敢为
张�林
王少龙
石慧
王麾
关卓怀
范雨
杨旭娟
李岩舟
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Guangxi University
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Guangxi University
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Publication date
Application filed by Guangxi University filed Critical Guangxi University
Priority to CN201310690280.9A priority Critical patent/CN103741734A/en
Publication of CN103741734A publication Critical patent/CN103741734A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a forwards-overturning night-rod two-freedom-degree mechanical loading mechanism which is formed by a rack, a movable arm control branched chain and a bucket control branched chain. The movable arm control branched chain is controlled by a first driving rod and conducts movable arm ascending or descending operation, the bucket control branched chain is controlled by a second driving rod to enable a bucket to be overturned, and the movable arm control branched chain is matched with the bucket control branched chain to jointly complete loading and unloading operation of the mechanical loading mechanism. All rod pieces of the mechanical loading mechanism are in rotary pair connection, and the shortcomings that a traditional moving-pair-contained full hydraulic type loading mechanism is high in manufacturing cost, poor in reliability, high in repairing and maintaining cost and the like are overcome; compared with other controllable-structure type loading mechanisms, the mechanical loading mechanism is compact in structure and large in rigidity, a brand new structure with the excellent kinematics and dynamics performance is adopted, and the reliability and the dynamic stability of the loading mechanism are good.

Description

The one nine bar two-freedom mechanical type loader mechanisms that just overturning
Technical field
The present invention relates to engineering machinery field, particularly the one nine bar two-freedom mechanical type loader mechanisms that just overturning.
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 object of the invention is to the problem that prior art exists the one nine bar two-freedom mechanical type loader mechanisms that just overturning are provided, 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 the rigidity of structure is large, and anti-overload ability is strong.
The present invention achieves the above object by technical scheme once:
The one nine bar two-freedom mechanical type loader mechanisms that just overturning, are comprised of frame, swing arm lifting side chain, scraper bowl control side chain.
Described swing arm lifting side chain is comprised of swing arm, the first driving lever, first connecting rod, described swing arm one end is connected with frame by the first revolute pair, the other end is connected with scraper bowl by the second revolute pair, described first driving lever one end is connected with frame by the 3rd revolute pair, the other end is connected with first connecting rod by the 4th revolute pair, and first connecting rod is connected with scraper bowl by the 5th revolute pair.
Described scraper bowl control side chain is comprised of the second driving lever, second connecting rod, support bar, pull bar, scraper bowl, described second driving lever one end is connected with frame by the 6th revolute pair, the other end is connected with second connecting rod one end by the 7th revolute pair, the second connecting rod other end is connected with pull bar by the 8th revolute pair, pull bar is connected with scraper bowl by the 9th revolute pair, described support bar one end is connected with frame by the tenth revolute pair, and the other end is connected with second connecting rod 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, be suitable for very much manufacturing large, medium and small type loader.
Accompanying drawing explanation
Fig. 1 is the one of the present invention nine bar two-freedom mechanical type loader mechanism schematic diagrames that just overturning.
Fig. 2 is the one of the present invention nine bar two-freedom mechanical type loader mechanism swing arm control side chain schematic diagrames that just overturning.
Fig. 3 is the one of the present invention nine bar two-freedom mechanical type loader mechanism scraper bowl control side chain schematic diagrames that just overturning.
Fig. 4 is the one of the present invention nine bar two-freedom mechanical type loader mechanism operation schematic diagrames that just overturning.
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 one nine bar two-freedom mechanical type loader mechanisms that just overturning, are comprised of frame 1, swing arm lifting side chain, scraper bowl control side chain.
Contrast Fig. 1, Fig. 2, described swing arm lifting side chain is comprised of swing arm 16, the first driving lever 3, first connecting rod 5, described swing arm 16 one end are connected with frame 1 by the first revolute pair 15, the other end is connected with scraper bowl 7 by the second revolute pair 17, described first driving lever 3 one end are connected with frame 1 by the 3rd revolute pair 2, the other end is connected with first connecting rod 5 by the 4th revolute pair 4, and first connecting rod 5 is connected with scraper bowl 7 by the 5th revolute pair 6.
Contrast Fig. 1, Fig. 3, described scraper bowl control side chain is comprised of the second driving lever 13, second connecting rod 11, support bar 20, pull bar 18, scraper bowl 7, described second driving lever 13 one end are connected with frame 1 by the 6th revolute pair 14, the other end is connected with second connecting rod 11 one end by the 7th revolute pair 12, second connecting rod 11 other ends are connected with pull bar 18 by the 8th revolute pair 9, pull bar 18 is connected with scraper bowl 7 by the 9th revolute pair 8, described support bar 20 one end are connected with frame 1 by the tenth revolute pair 19, and the other end is connected with second connecting rod 11 by the 11 revolute pair 10.
Contrast Fig. 1, Fig. 2, Fig. 3, Fig. 4, the described one nine bar two-freedom mechanical type loader mechanisms that just overturning 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 16, described scraper bowl control side chain is by the driving control of the second driving lever 13, complete the upset operation of scraper bowl 7, according to actual job requirement, by cooperatively interacting of swing arm control side chain and scraper bowl control side chain, jointly complete swing arm 16 liftings, decline, the loading operation tasks such as scraper bowl 7 loadings and discharging.

Claims (1)

1. the nine bar two-freedom mechanical type loader mechanisms that just overturning, are comprised of frame, swing arm lifting side chain, scraper bowl control side chain, it is characterized in that:
Described swing arm lifting side chain is comprised of swing arm, the first driving lever, first connecting rod, described swing arm one end is connected with frame by the first revolute pair, the other end is connected with scraper bowl by the second revolute pair, described first driving lever one end is connected with frame by the 3rd revolute pair, the other end is connected with first connecting rod by the 4th revolute pair, first connecting rod is connected with scraper bowl by the 5th revolute pair
Described scraper bowl control side chain is comprised of the second driving lever, second connecting rod, support bar, pull bar, scraper bowl, described second driving lever one end is connected with frame by the 6th revolute pair, the other end is connected with second connecting rod one end by the 7th revolute pair, the second connecting rod other end is connected with pull bar by the 8th revolute pair, pull bar is connected with scraper bowl by the 9th revolute pair, described support bar one end is connected with frame by the tenth revolute pair, and the other end is connected with second connecting rod by the 11 revolute pair.
CN201310690280.9A 2013-12-16 2013-12-16 Forwards-overturning night-rod two-freedom-degree mechanical loading mechanism Pending CN103741734A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310690280.9A CN103741734A (en) 2013-12-16 2013-12-16 Forwards-overturning night-rod two-freedom-degree mechanical loading mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310690280.9A CN103741734A (en) 2013-12-16 2013-12-16 Forwards-overturning night-rod two-freedom-degree mechanical loading mechanism

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CN103741734A true CN103741734A (en) 2014-04-23

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104032781A (en) * 2014-06-27 2014-09-10 广西大学 Electromagnetically-braked actively-metamorphic multi-link controllable excavation mechanism
CN106607889A (en) * 2016-12-07 2017-05-03 广西大学 Movable two-degree of freedom closed-chain structure gas cutting blanking machine
CN106607633A (en) * 2016-12-07 2017-05-03 广西大学 A movable two-degree-of-freedom closed-chain structure gas cutting blanking machine
CN108081238A (en) * 2016-11-21 2018-05-29 广西大学 A kind of two-freedom closed linkage make-up machinery arm
CN108080841A (en) * 2016-11-21 2018-05-29 广西大学 A kind of two-freedom linkage spot welding manipulator
CN108081235A (en) * 2016-11-21 2018-05-29 广西大学 A kind of two-freedom closed linkage spot welding manipulator

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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
CN102535546A (en) * 2012-01-12 2012-07-04 广西大学 Controllable loader with high load capacity
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
CN202416394U (en) * 2012-01-12 2012-09-05 广西大学 Space controllable mechanism type loader

Patent Citations (6)

* Cited by examiner, † Cited by third party
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
CN102561425A (en) * 2011-12-27 2012-07-11 燕山大学 Four-degree-of-freedom connecting rod working mechanism containing composite hinges
CN102535546A (en) * 2012-01-12 2012-07-04 广西大学 Controllable loader with high load capacity
CN102561426A (en) * 2012-01-12 2012-07-11 广西大学 3-dof (three degrees of freedom) controllable mechanism type excavator
CN202416394U (en) * 2012-01-12 2012-09-05 广西大学 Space controllable mechanism type loader

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104032781A (en) * 2014-06-27 2014-09-10 广西大学 Electromagnetically-braked actively-metamorphic multi-link controllable excavation mechanism
CN108081238A (en) * 2016-11-21 2018-05-29 广西大学 A kind of two-freedom closed linkage make-up machinery arm
CN108080841A (en) * 2016-11-21 2018-05-29 广西大学 A kind of two-freedom linkage spot welding manipulator
CN108081235A (en) * 2016-11-21 2018-05-29 广西大学 A kind of two-freedom closed linkage spot welding manipulator
CN106607889A (en) * 2016-12-07 2017-05-03 广西大学 Movable two-degree of freedom closed-chain structure gas cutting blanking machine
CN106607633A (en) * 2016-12-07 2017-05-03 广西大学 A movable two-degree-of-freedom closed-chain structure gas cutting blanking machine

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