CN2823681Y - Double crank six connecting rod mechanism - Google Patents
Double crank six connecting rod mechanism Download PDFInfo
- Publication number
- CN2823681Y CN2823681Y CN 200520073004 CN200520073004U CN2823681Y CN 2823681 Y CN2823681 Y CN 2823681Y CN 200520073004 CN200520073004 CN 200520073004 CN 200520073004 U CN200520073004 U CN 200520073004U CN 2823681 Y CN2823681 Y CN 2823681Y
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- CN
- China
- Prior art keywords
- crank
- working
- gearwheel
- driving
- bent axle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a double crank six-connecting rod mechanism which belongs to technical field of a mechanical press. The utility model is characterized in that one end of a working crank is also sheathed with an eccentric sleeve, a gearwheel is sheathed on the eccentric sleeve and the working crank end of the outer side of the eccentric sleeve is connected with a driving crank and a driving push rod. The other end of the driving push rod is connected with a pin which is arranged at the edge of the gearwheel. The mechanism can cause the gearwheel to rotate in nonuniform speed. Because the working crank and the driving crank are positioned at center positions of circles which are not concentric, the angular velocity of the driving crank is the function of a position angle of the working crank. The working crank drives a slide block to move in a reciprocating way through a working connecting rod, and the slide block moves in a uniform speed in a long working stroke to adapt the technological requirements of deep stretch, cool extrusion, etc. The utility model reduces the impact between a mould and a work piece when the work starts, a high speed is formed in a back stroke, the back stroke time can be shortened and the production efficiency is improved.
Description
Technical field
The utility model relates to a kind of double-crank six bar mechanism, is the power transmitting mechanism of mechanical press, belongs to the mechanical press technical field.
Background technique
The power transmitting mechanism of existing machinery press machine, the overwhelming majority is the single crank linkage mechanism, promptly constitute by crankshaft-and-connecting-rod, this mechanism is rotated by the rotating band dynamic crankshaft of big flywheel on press machine, the bent axle of rotation drivening rod again swings, thereby driving the slide block be connected the connecting rod lower end moves up and down and finishes stamping process, one week of crankshaft rotating, return upper dead center by upper dead center to lower dead centre, its movement velocity characteristic curve is a sinusoidal curve, and the sinusoidal curve of speed characteristics shows that its acceleration is descending, ascending again, this speed characteristics can not adapt to deep drawn, technologies such as cold hobbing require the low and uniform requirement of speed of speed to working stroke
Summary of the invention
The purpose of this utility model is the weakness that does not have in the working stroke that exists at existing machinery press machine single crank linkage mechanism at the uniform velocity, be provided at and have low speed and characteristic at the uniform velocity in the working stroke, satisfy a kind of double-crank six bar mechanism of technological requirements such as deep drawn, cold hobbing.
The purpose of this utility model is achieved through the following technical solutions, a kind of double-crank six bar mechanism, comprise the work bent axle, be nested with the connecting rod on the work bent axle, the gearwheel of work bent axle one end is characterized in that work bent axle one end also is nested with eccentric bushing, is nested with gearwheel on the eccentric bushing, the work crankshaft end in the eccentric bushing outside connects the driving bent axle and drives push rod, and the other end that drives push rod is connected with the pin at gearwheel edge.
The utility model is by being nested with eccentric bushing on the work bent axle, on eccentric bushing, be nested with gearwheel again, make a bent axle have the function of hyperbolic axle, this mechanism can make the constant angular velocity of gearwheel rotate, change the rotation of the variable speed of bent axle into, because work bent axle and driving bent axle are in the home position of decentraction, so driving the angular velocity of bent axle is the function at work crank position angle, it is reciprocating that the work bent axle drives slide block by the work connecting rod, owing to drive bent axle is the variable angular velocity motion, the slide block that the connecting rod lower end is connected is done at the uniform velocity mobile in long working stroke, just can adapt to deep drawn, technologies such as cold hobbing require the low and uniform requirement of speed of speed to working stroke, the impact of mould and workpiece when also having reduced the work beginning simultaneously, has higher speed in the backhaul, can shorten return interval, help enhancing productivity, the utlity model has very strong practicability and remarkable economic efficiency.
Description of drawings
Fig. 1 is the utility model master TV structure schematic representation;
Fig. 2 is the utility model partial left TV structure schematic representation;
Among the figure, 1 work bent axle, 2 drive bent axle, 3 work connecting rods, 4 eccentric bushings, 5 gearwheels, 6 drive push rod, 7 pins, 8 pins.
Embodiment
Further specify the utility model in conjunction with the accompanying drawings and embodiments, the utility model is by work bent axle 1, drive bent axle 2, work connecting rod 3, eccentric bushing 4, gearwheel 5, driving push rod 6 constitutes, work connecting rod 3 is nested with on work bent axle 1, one end of work bent axle 1 is nested with eccentric bushing 4, is nested with gearwheel 5 on the eccentric bushing 4, and work bent axle 1 axle head in eccentric bushing 4 outsides connects driving bent axle 2 and drives push rod 6, drive bent axle 2 and drive distribution 7 pin joints between the push rod 6, the other end that drives push rod 6 is connected with the pin 8 at gearwheel 5 edges.
Claims (2)
1, a kind of double-crank six bar mechanism, comprise the work bent axle, be nested with the connecting rod on the work bent axle, the gearwheel of work bent axle one end, it is characterized in that work bent axle one end also is nested with eccentric bushing, be nested with gearwheel on the eccentric bushing, the work crankshaft end in the eccentric bushing outside connects the driving bent axle and drives push rod, and the other end that drives push rod is connected with the pin at gearwheel edge.
2, double-crank six bar mechanism according to claim 1 is characterized in that driving crankshaft-link rod and drives distribution pin joint between the push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520073004 CN2823681Y (en) | 2005-06-24 | 2005-06-24 | Double crank six connecting rod mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520073004 CN2823681Y (en) | 2005-06-24 | 2005-06-24 | Double crank six connecting rod mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2823681Y true CN2823681Y (en) | 2006-10-04 |
Family
ID=37032794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520073004 Expired - Fee Related CN2823681Y (en) | 2005-06-24 | 2005-06-24 | Double crank six connecting rod mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2823681Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121513A (en) * | 2010-12-31 | 2011-07-13 | 中国航空工业空气动力研究院 | Series double-crank sliding block type control surface automatic changeable angle mechanism |
| CN102581107A (en) * | 2012-02-22 | 2012-07-18 | 苏州斯莱克精密设备股份有限公司 | Bidirectional double-punching can body drawing machine |
| CN107297917A (en) * | 2017-07-04 | 2017-10-27 | 浙江东雄重工有限公司 | A kind of punch press multi link drive mechanism |
| CN114423966A (en) * | 2020-02-12 | 2022-04-29 | R·R·拉金德兰 | Infinitely variable transmission with uniform input-output ratio independent of friction |
-
2005
- 2005-06-24 CN CN 200520073004 patent/CN2823681Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121513A (en) * | 2010-12-31 | 2011-07-13 | 中国航空工业空气动力研究院 | Series double-crank sliding block type control surface automatic changeable angle mechanism |
| CN102581107A (en) * | 2012-02-22 | 2012-07-18 | 苏州斯莱克精密设备股份有限公司 | Bidirectional double-punching can body drawing machine |
| CN107297917A (en) * | 2017-07-04 | 2017-10-27 | 浙江东雄重工有限公司 | A kind of punch press multi link drive mechanism |
| CN114423966A (en) * | 2020-02-12 | 2022-04-29 | R·R·拉金德兰 | Infinitely variable transmission with uniform input-output ratio independent of friction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061004 Termination date: 20140624 |
|
| EXPY | Termination of patent right or utility model |