CN202764592U - Involute walking wheel - Google Patents
Involute walking wheel Download PDFInfo
- Publication number
- CN202764592U CN202764592U CN 201220324462 CN201220324462U CN202764592U CN 202764592 U CN202764592 U CN 202764592U CN 201220324462 CN201220324462 CN 201220324462 CN 201220324462 U CN201220324462 U CN 201220324462U CN 202764592 U CN202764592 U CN 202764592U
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- CN
- China
- Prior art keywords
- involute
- walking wheel
- ladder
- road
- tiller
- 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 provides an involute walking wheel of a mini-tiller. The walking wheel comprises three blades. The blades are connected with each other through an involute and a straight line. Curve parts of the blades are involutes. Therefore, adaptability of the involute walking wheel of the mini-tiller is improved, and the involute walking wheel can continuously and stably go up and down stairs.
Description
Technical field
The utility model belongs to agricultural machinery technological field, relates to a kind of tiller involute sprocket.
Background technology
The people is many, plough less, the mountain area, the hills is many, the peasant is many, the peasant is poor, resource is few, environment is fragile, scientific and technological undeveloped be the national conditions of China.The Hills area accounts for 43.23% of whole areas, near half of territory total area.Tiller is subjected to liking of users deeply because lightweight, the characteristics such as volume is little, simple in structure, behaviour is convenient are fit to the hillside fields of the vast Hills of China and the farming of splat.
Hills topography and geomorphology complexity is various, the field disperses, and sloping bank is many, is uneven, 80% the not current tractor road in arable land is arranged at present, agricultural machinery is heavy, and the plot is little, and manufacturing scale is little, during agricultural machinery working, between field, interregional telephone-moving also needs the able-bodied laborer to take springboard, lifts, holds up facility, sometimes between field, interregional need are through long one section ladder abrupt slope, further increase difficulty during telephone-moving.
Micro-cultivator walking wheel mostly is circular at present, all can not on the road of People's Bank of China's ladder, walk by continous-stable, comformability is not strong, during farm work, if meet long ladder highway section, the telephone-moving difficulty is larger, and leaveing no choice but that several strong male labour powers lift can not, therefore, affected the enthusiasm of hill farmer use field machine.
Summary of the invention
The purpose of this utility model is for overcoming the deficiency of prior art, provide a kind of simple in structure, easy to manufacture, easy to use, laborsaving, being adapted at the road wheel of stable and continuous walking on the ladder road.
In order to achieve the above object, a kind of road wheel of tiller ladder road, road wheel is made of three blades, is connected with straight line by involute between blade and blade, intends improving the comformability of micro-cultivator walking wheel, realizes the continous-stable going up or down stairway.
The curved portion involute of trilobed wheel profile, its involute polar equation r
b=r
kCos α
k, θ
k=tg α
k-α
k
The remainder of trilobed wheel profile is straight line, the length of straight line AB equals the height of each ladder in the road, its height h=170mm to 250mm, the length of involute ABC equals the width of each cascaded surface in the road, its width is 300mm to 350mm, from the A point, along involute ABC direction, contact with cascaded surface, because length relation, when the B point contacts with ladder, just in time be to contact with the terminal point of this ladder tread, simultaneously A point beginning contacts with next cascaded surface starting point, and so the process of climbing ladder is finished in circulation.
Description of drawings
Fig. 1 is the trilobed wheel of tiller involute sprocket.
Fig. 2 is the tiller involute sprocket, the schematic diagram of going up or down stairway road.
The specific embodiment
Below in conjunction with Fig. 1, Fig. 2, the specific embodiment of the present utility model is described further.
The utility model tiller involute sprocket is to realize like this going up or down stairway, the length of line segment AB equals the height of each ladder in the road, and the length of curve A BC equals the width of each cascaded surface in the road, from the A point, along curve A BC direction, contact with cascaded surface, because length relation, when the B point contacts with ladder, just in time be to contact with the terminal point of this ladder tread, simultaneously A point beginning contacts with starting point behind next ladder tread, and so circulation is finished and climbed step process.
The involute trilobed wheel is to guarantee tiller continuous and stable going up or down stairway.
Claims (3)
1. involute sprocket, it is characterized in that: road wheel is comprised of three blades, and the curved portion of blade is involute, is connected with straight line AB by involute ABC between blade and blade.
2. according to involute sprocket claimed in claim 1, it is characterized in that: the length of straight line AB equals the height 150mm to 250mm of each ladder in the road, and the length of curve involute ABC equals the width 300mm to 350mm of each ladder in the road.
3. according to involute sprocket claimed in claim 1, it is characterized in that: the involute polar equation is r
b=r
kCos α
k, θ
k=tg α
k-α
k
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220324462 CN202764592U (en) | 2012-06-26 | 2012-06-26 | Involute walking wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220324462 CN202764592U (en) | 2012-06-26 | 2012-06-26 | Involute walking wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202764592U true CN202764592U (en) | 2013-03-06 |
Family
ID=47771189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220324462 Expired - Fee Related CN202764592U (en) | 2012-06-26 | 2012-06-26 | Involute walking wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202764592U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102717656A (en) * | 2012-06-26 | 2012-10-10 | 朱贤华 | Travelling wheel with involutes for micro-tillage machine |
| CN102729727A (en) * | 2012-07-06 | 2012-10-17 | 朱贤华 | Traveling wheel of mini-tiller |
-
2012
- 2012-06-26 CN CN 201220324462 patent/CN202764592U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102717656A (en) * | 2012-06-26 | 2012-10-10 | 朱贤华 | Travelling wheel with involutes for micro-tillage machine |
| CN102729727A (en) * | 2012-07-06 | 2012-10-17 | 朱贤华 | Traveling wheel of mini-tiller |
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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: 20130306 Termination date: 20130626 |