CN104594411A - Seven-rod two-degree-of-freedom controllable mechanism type loading mechanism - Google Patents
Seven-rod two-degree-of-freedom controllable mechanism type loading mechanism Download PDFInfo
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- CN104594411A CN104594411A CN201410826485.XA CN201410826485A CN104594411A CN 104594411 A CN104594411 A CN 104594411A CN 201410826485 A CN201410826485 A CN 201410826485A CN 104594411 A CN104594411 A CN 104594411A
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- connecting rod
- revolute pair
- rod
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- driving lever
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Abstract
The invention discloses a seven-rod two-degree-of-freedom controllable mechanism type loading mechanism. The seven-rod two-degree-of-freedom controllable mechanism type loading mechanism comprises a second driving rod, a machine frame, a second connecting rod, a bucket, a first driving rod, a first connecting rod and a rocker arm. One end of the second driving rod is connected with the machine frame through a fourth revolute pair, the other end of the second driving rod is connected with one end of the second connecting rod through a fifth revolute pair, and the other end of the second connecting rod is connected to the bucket through a sixth revolute pair. One end of the first driving rod is connected with the machine frame through a first revolute pair, the other end of the first driving rod is connected with one end of the first connecting rod through a second revolute pair, and the other end of the first connecting rod is connected to the bucket through a third revolute pair. One end of the rocker arm is connected to the second connecting rod through a seventh revolute pair, and the other end of the rocker arm is connected to the first connecting rod through an eighth revolute pair. The seven-rod two-degree-of-freedom controllable mechanism type loading mechanism is compact in structure and high in rigidity, the overload resisting capacity of the loading mechanism is improved, and the loading mechanism is better in reliability and dynamic stability and quite suitable for manufacturing large loading machines, medium-sized loading machines and small loading machines.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of seven bar two degrees of freedom controllable mechanism loader structures.
Background technology
Loader is a kind of restoration in earth-rock construction machinery being widely used in the construction projects such as road, harbour, mine, railway, and it is mainly used in loose unpacked material such as shovel dress soil, sandstone etc., also can make slight shovel to ore, pan soil etc. and dig operation.Change that kind of different auxiliary working apparatus also can carry out bulldozing, the handling operation of lifting and unclassified stores.Loader is the engineering machinery be most widely used, and along with socioeconomic development, loader gets more and more in the application of the occasions such as Municipal engineering, garbage-cleaning, construction work.Existing loader is primarily of swing arm lifting mechanism and bucket turnover mechanism two parts composition, the action that fulfils assignment is controlled respectively by boom cylinder and bucket cylinder, although hydraulic system structure is compact, but hydraulic system is subject to oil overheating impact, mechanical efficiency is low, transmission stability is poor, and Hydraulic System Reliability is poor, safeguards, maintenance is complicated and cost is higher.
Along with the development of theory of mechanisms and electromechanical integration, loader mechanism operation is driven 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 simple modifications is carried out to existing hydraulic loader structure, utilize the hydraulic system in two linkages replacement hydraulic loader structures, lack the consideration to rod member transmission and hydraulic cylinder transmission dynamic property difference, cause mechanism's poor rigidity, anti-overload ability is little, the shortcomings such as kinematics and dynamic performance difference, be difficult to meet actual job needs, although solve the some shortcomings of hydraulic system existence, be difficult to be applicable to loader design and produce.
Summary of the invention
The object of the invention is to prior art Problems existing and a kind of seven bar two degrees of freedom controllable mechanism loader structures are provided, under guarantee meets the requirement of conventional load machine operation and the simple prerequisite of linkage structure, not only avoid existing fluid pressure type loader poor reliability, the shortcomings such as transmission efficiency is low, and ensure that this mechanical type loader mechanism has kinematics, dynamic performance is good, the rigidity of structure is large, the advantages such as anti-overload ability is strong.
The present invention is achieved the above object by once technical scheme:
A kind of seven bar two degrees of freedom controllable mechanism loader structures, comprise the second driving lever, frame, second connecting rod, scraper bowl, the first driving lever, first connecting rod and rocking arm;
Described second driving lever one end is connected with frame by the 4th revolute pair, and the second driving lever other end is connected with second connecting rod one end by the 5th revolute pair, and the second connecting rod other end is connected on scraper bowl by the 6th revolute pair;
Described first driving lever one end is connected with frame by the first revolute pair, and the first driving lever other end is connected with first connecting rod one end by the second revolute pair, and the first connecting rod other end is connected on scraper bowl by the 3rd revolute pair;
Described one end is connected on second connecting rod by the 7th revolute pair, and the rocking arm other end is connected on first connecting rod by the 8th revolute pair.
Outstanding advantages of the present invention is:
1, this mechanical type loader mechanism is under guarantee meets the requirement of conventional load machine operation and the simple prerequisite of linkage structure, not only avoid existing fluid pressure type loader poor reliability, the shortcomings such as transmission efficiency is low, by adopting brand-new Designing Linkages, improve the reliability of shaft portion, improve the mechanical property of loader mechanism, be very applicable to loader design and manufaction.
2, this mechanical type loader mechanism is compared with other controllable mechanism loader structures, not only compact conformation, rigidity is large, improve the anti-overload ability of loader mechanism, and have employed kinematics and the more superior new structure of 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 a kind of seven bar two degrees of freedom controllable mechanism loader structure schematic diagrames of the present invention.
Detailed description of the invention
Below by way of accompanying drawing, technical scheme of the present invention is described further.
A kind of seven bar two degrees of freedom controllable mechanism loader structures, comprise the second driving lever 2, frame 14, second connecting rod 4, scraper bowl 7, first driving lever 12, first connecting rod 9 and rocking arm 15;
Described second driving lever 2 one end is connected with frame 14 by the 4th revolute pair 1, and second driving lever 2 other end is connected with second connecting rod 4 one end by the 5th revolute pair 3, and second connecting rod 4 other end is connected on scraper bowl 7 by the 6th revolute pair 6;
Described first driving lever 12 one end is connected with frame 14 by the first revolute pair 13, and first driving lever 12 other end is connected with first connecting rod 9 one end by the second revolute pair 11, and first connecting rod 9 other end is connected on scraper bowl 7 by the 3rd revolute pair 8;
Described rocking arm 15 one end is connected on second connecting rod 4 by the 7th revolute pair 5, and rocking arm 15 other end is connected on first connecting rod 9 by the 8th revolute pair 10.
Being installed by frame 14 to be arranged on walking chassis, described swing arm controls the drived control of side chain by the first driving lever 12, complete lifting or the down maneuver of scraper bowl 7, by the drived control of the second driving lever 2, complete the upset operation of scraper bowl 7, complete scraper bowl 7 lifting, decline, the loading operation tasks such as loading and discharging.
Claims (1)
1. seven bar two degrees of freedom controllable mechanism loader structures, is characterized in that, comprise the second driving lever, frame, second connecting rod, scraper bowl, the first driving lever, first connecting rod and rocking arm;
Described second driving lever one end is connected with frame by the 4th revolute pair, and the second driving lever other end is connected with second connecting rod one end by the 5th revolute pair, and the second connecting rod other end is connected on scraper bowl by the 6th revolute pair;
Described first driving lever one end is connected with frame by the first revolute pair, and the first driving lever other end is connected with first connecting rod one end by the second revolute pair, and the first connecting rod other end is connected on scraper bowl by the 3rd revolute pair;
Described one end is connected on second connecting rod by the 7th revolute pair, and the rocking arm other end is connected on first connecting rod by the 8th revolute pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410826485.XA CN104594411A (en) | 2014-12-25 | 2014-12-25 | Seven-rod two-degree-of-freedom controllable mechanism type loading mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410826485.XA CN104594411A (en) | 2014-12-25 | 2014-12-25 | Seven-rod two-degree-of-freedom controllable mechanism type loading mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104594411A true CN104594411A (en) | 2015-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410826485.XA Pending CN104594411A (en) | 2014-12-25 | 2014-12-25 | Seven-rod two-degree-of-freedom controllable mechanism type loading mechanism |
Country Status (1)
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| CN (1) | CN104594411A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103174178A (en) * | 2013-02-08 | 2013-06-26 | 广西大学 | Branch-chain stop control type multiple degrees of freedom link mechanism form loading machine |
-
2014
- 2014-12-25 CN CN201410826485.XA patent/CN104594411A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103174178A (en) * | 2013-02-08 | 2013-06-26 | 广西大学 | Branch-chain stop control type multiple degrees of freedom link mechanism form loading machine |
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Application publication date: 20150506 |
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