CN201013857Y - Double rod drive mechanism - Google Patents
Double rod drive mechanism Download PDFInfo
- Publication number
- CN201013857Y CN201013857Y CNU2007201006513U CN200720100651U CN201013857Y CN 201013857 Y CN201013857 Y CN 201013857Y CN U2007201006513 U CNU2007201006513 U CN U2007201006513U CN 200720100651 U CN200720100651 U CN 200720100651U CN 201013857 Y CN201013857 Y CN 201013857Y
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- CN
- China
- Prior art keywords
- cranks
- auxiliary
- main
- crank
- connecting rod
- 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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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a double connecting bar actuating mechanism, aiming at providing an actuating mechanism with simple structure and reliable performance. The utility model consists of connecting bars, cranks and a pin roll. A connecting rod is in pin joint between two main cranks that are respectively and fixedly connected with two auxiliary cranks. The axis of the main cranks is intersected with the axis of the auxiliary cranks. The other ends of the two auxiliary cranks are in pin joint with the connecting rod. The two ends of the pin roll that are connected with the main cranks and the auxiliary cranks are square axes and the middle part of the pin roll is a round axes, the main cranks and the auxiliary cranks are respectively arranged at the two ends of the pin roll and the connecting rod is arranged on the round axes at the middle part of the pin roll. The utility model uses a structure that two main cranks are respectively and fixedly connected with the two auxiliary cranks and the axis of the main cranks is intersected with the axis of the auxiliary cranks, therefore, an angle is formed between the main cranks and the auxiliary cranks and no dead angle is generated when working, thereby, the working reliability is greatly enhanced. The connectors of the utility model are rod pieces and pin rolls, thereby, the structure is relatively simple.
Description
Technical field
The utility model relates to a kind of transmission device of farm machinery, particularly a kind of double link driving mechanism.
Background technique
Along with continuous progress in science and technology and agricultural economy constantly develop, the use of farm machinery is more and more popularized, at present, and the scene of the mechanization operation that is seen everywhere in vast rural area.In agricultural machinery and implement, generally use sprocket wheel chain and gear transmission.When adopting the sprocket wheel chain transmission, exist the operating time one long, chain is elongated to fluff, the problem that comes off easily.Therefore, often needing increases tension device, also need set up protective housing simultaneously, reaches the purpose that dustproof and anti-weeds are twined, and has not only increased cost, and it is complicated more that structure also becomes, and the reliability of work is not high.Gear transmission exists transmission apart from weak point, if strengthen the transmission distance, will increase gear quantity, and cost is higher.Though, the kind of drive that adopts crank-connecting rod is also arranged, all be single bar linkage structure.Single bar linkage structure exists in the transmission process can form a dead angle, is easy to generate the reversing phenomenon, and the farm machinery that has does not allow to reverse, and therefore, its application area is subjected to certain limitation.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, the driving mechanism of reliable operation.
The utility model is achieved in that and comprises connecting rod, crank and bearing pin, pin joint one connecting rod between two main cranks, two main cranks are affixed with two auxiliary cranks respectively, main crank axis and auxiliary crank axes intersect, the other end of two auxiliary cranks respectively with connecting rod two ends pin joint.
With the bearing pin that main crank is connected with auxiliary crank, its two ends are square shaft, and the centre is a circular shaft, and main crank and auxiliary crank are contained in the two ends of bearing pin respectively, and connecting rod is contained on the circular shaft in bearing pin stage casing.
The utility model adopts two main cranks affixed with two auxiliary cranks respectively, and therefore the structure of main crank axis and auxiliary crank axes intersect, forms an angle between main crank and the auxiliary crank, can not produce the dead angle when work, and the reliability of work greatly improves.Knot spare of the present utility model is rod member and bearing pin, and therefore, structure is comparatively simple.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is that the A of Fig. 1 is to view.
Embodiment
Fig. 1, shown in Figure 2, the utility model is made up of connecting rod 3, major and minor crank 2,1 and bearing pin 4.Pin joint one connecting rod 3, two main cranks 2 are affixed and guarantee main crank 2 axis and auxiliary crank 1 axes intersect with two auxiliary cranks 1 respectively between two main cranks 2, and promptly both axis form an angle.The other end of two auxiliary cranks 1 respectively with connecting rod 3 two ends pin joints.With the bearing pin 4 that main crank 2 is connected with auxiliary crank 1, its two ends are square shaft, and the centre is a circular shaft, and main crank 2 and auxiliary crank 1 are contained in the two ends of bearing pin 4 respectively, and connecting rod 3 is contained on the circular shaft in bearing pin 4 stage casings.During work, two main cranks 2 are connected on the power input shaft of pto and workpiece and get final product.In service, owing between main crank 2 and the auxiliary crank 1 angle is arranged, again because main crank 2 and auxiliary crank 1 are affixed mode, therefore, major and minor crank 2,1 rotates synchronously, when main crank 2 rotates to the position, dead angle, auxiliary crank 1 is not in the position, dead angle, and take over main crank 2 work by auxiliary crank 1 this moment; When auxiliary crank 1 went to the dead angle, main crank 2 was not in the dead angle, and replace auxiliary crank 1 work by main crank 2 this moment.Whole process so repeats to hocket, and therefore, can not form the dead angle in entire work process, more not the phenomenon that can occur reversing.
Claims (2)
1. double link driving mechanism, comprise connecting rod, crank and bearing pin, it is characterized in that: pin joint one connecting rod (3) between two main cranks (2), two main cranks (2) are affixed with two auxiliary cranks (1) respectively, main crank (2) axis and auxiliary crank (1) axes intersect, the other end of two auxiliary cranks (1) respectively with connecting rod (3) two ends pin joint.
2. double link driving mechanism according to claim 1, it is characterized in that: the bearing pin (4) that is connected with auxiliary crank (1) with main crank (2), its two ends are square shaft, the centre is a circular shaft, main crank (2) and auxiliary crank (1) are contained in the two ends of bearing pin (4) respectively, and connecting rod (3) is contained on the circular shaft in bearing pin (4) stage casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201006513U CN201013857Y (en) | 2007-02-13 | 2007-02-13 | Double rod drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201006513U CN201013857Y (en) | 2007-02-13 | 2007-02-13 | Double rod drive mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201013857Y true CN201013857Y (en) | 2008-01-30 |
Family
ID=39025650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201006513U Expired - Fee Related CN201013857Y (en) | 2007-02-13 | 2007-02-13 | Double rod drive mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201013857Y (en) |
-
2007
- 2007-02-13 CN CNU2007201006513U patent/CN201013857Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080130 |