CN102729726A - Logarithmic spiral travelling wheel - Google Patents
Logarithmic spiral travelling wheel Download PDFInfo
- Publication number
- CN102729726A CN102729726A CN2012102415039A CN201210241503A CN102729726A CN 102729726 A CN102729726 A CN 102729726A CN 2012102415039 A CN2012102415039 A CN 2012102415039A CN 201210241503 A CN201210241503 A CN 201210241503A CN 102729726 A CN102729726 A CN 102729726A
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- China
- Prior art keywords
- logarithmic spiral
- ladder
- road
- travelling wheel
- road wheel
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Abstract
The invention relates to a logarithmic spiral travelling wheel. The travelling wheel is composed of three blades, the blades are connected in a logarithmic spiral and straight line manner, the curve part of each blade is involute, the adaptability of a mini-tiller travelling wheel is improved, and continuous stable upper and lower steps are realized.
Description
Technical field
The invention belongs to agricultural machinery technological field, relate to a kind of tiller logarithmic spiral road wheel.
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.Mountain area, hills area accounts for 43.23% of whole areas, half the near territory total area.Tiller because in light weight, volume is little, simple in structure, characteristics such as behaviour is convenient, is fit to the hillside fields in mountain area, the vast hills of China and the farming of splat, receives liking of users deeply.
Hills alpine terrain landforms complicacy is various, and the field disperses, and sloping bank is many; Be uneven, 80% the not current tractor road in arable land is arranged at present, agricultural machinery is heavy; The plot is little, and manufacturing scale is little, during agricultural machinery working; Field interblock, interregional telephone-moving also need the able-bodied laborer to take springboard, lift, hold up facility, and field interblock, the interregional need through long one section ladder abrupt slope further increase difficulty during telephone-moving sometimes.
Mostly the tiller road wheel is circular at present, all can not on the road of People's Bank of China's ladder, walk by continous-stable, and comformability is not strong; During farm work; If meet long ladder highway section, the telephone-moving difficulty is bigger, and leaveing no choice but that several strong male labour powers lift can not; Therefore, influenced the enthusiasm of hill farmer use field machine.
Summary of the invention
The objective of the invention is for overcoming the deficiency of prior art, provide a kind of simple in structure, easy to manufacture, easy to use, laborsaving, be adapted at the road wheel of stable and continuous walking on the ladder road surface.
In order to achieve the above object, a kind of road wheel of tiller ladder road, road wheel is made up of three blades, is connected with straight line by involute between blade and blade, intends the comformability that improves the tiller road wheel, realizes the continous-stable going up or down stairway.
The curved portion of trilobed wheel profile is a logarithmic spiral, its logarithmic spiral parametric equation ρ=e
α θ
The remainder of trilobed wheel profile is a straight line, and 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, and its width is 300mm to 350mm, begins 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, A point beginning simultaneously contacts with next cascaded surface starting point; The process of climbing ladder is accomplished in so circulation.
Description of drawings
Fig. 1 is the trilobed wheel of tiller logarithmic spiral road wheel.
Fig. 2 is a tiller logarithmic spiral road wheel, the schematic diagram of going up or down stairway.
The specific embodiment
Below in conjunction with Fig. 1, Fig. 2, specific embodiments of the invention is described further.
Tiller logarithmic spiral road wheel of the present invention is to realize going up or down stairway like this, and 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 ladder in the road; From the beginning of A point,, contact with cascaded surface along curve A BC direction; Because length relation when the B point contacts with ladder, just in time is to contact with the terminal point of this cascaded surface; Starting point contact behind A point beginning simultaneously and next ladder tread, the like this circulation, and the ladder process is climbed in completion.
The logarithmic spiral trilobed wheel is to guarantee the continuously steady going up or down stairway of tiller.
Claims (3)
1. logarithmic spiral road wheel, it is characterized in that: road wheel is made up of three blades, and the curved portion of blade is a logarithmic spiral, is connected with straight line by logarithmic spiral between blade and blade.
2. according to the described logarithmic spiral road wheel of 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 logarithmic spiral ABC equals the width 300mm to 350mm of each ladder in the road.
3. according to the described logarithmic spiral road wheel of claim 1, it is characterized in that: the logarithmic spiral polar equation is ρ=e
α θ
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102415039A CN102729726A (en) | 2012-07-03 | 2012-07-03 | Logarithmic spiral travelling wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102415039A CN102729726A (en) | 2012-07-03 | 2012-07-03 | Logarithmic spiral travelling wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102729726A true CN102729726A (en) | 2012-10-17 |
Family
ID=46986306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102415039A Pending CN102729726A (en) | 2012-07-03 | 2012-07-03 | Logarithmic spiral travelling wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102729726A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102729727A (en) * | 2012-07-06 | 2012-10-17 | 朱贤华 | Traveling wheel of mini-tiller |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2037331U (en) * | 1988-06-22 | 1989-05-10 | 唐思义 | Dual-purpose vehicle for stairs and ground |
| CN2238751Y (en) * | 1995-10-10 | 1996-10-30 | 于丰 | Walking wheel used on ladder road |
| JP4087872B2 (en) * | 2005-03-31 | 2008-05-21 | 耕一 岡本 | Wheels going up and down stairs |
| CZ2010177A3 (en) * | 2010-03-11 | 2012-03-28 | Vysoká škola bánská - Technická univerzita Ostrava | Cycle for travelling in the field and up or down a flight of stairs |
| CN202847322U (en) * | 2012-07-03 | 2013-04-03 | 朱贤华 | Mini-tiller logarithmic spiral line walking wheel |
-
2012
- 2012-07-03 CN CN2012102415039A patent/CN102729726A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2037331U (en) * | 1988-06-22 | 1989-05-10 | 唐思义 | Dual-purpose vehicle for stairs and ground |
| CN2238751Y (en) * | 1995-10-10 | 1996-10-30 | 于丰 | Walking wheel used on ladder road |
| JP4087872B2 (en) * | 2005-03-31 | 2008-05-21 | 耕一 岡本 | Wheels going up and down stairs |
| CZ2010177A3 (en) * | 2010-03-11 | 2012-03-28 | Vysoká škola bánská - Technická univerzita Ostrava | Cycle for travelling in the field and up or down a flight of stairs |
| CN202847322U (en) * | 2012-07-03 | 2013-04-03 | 朱贤华 | Mini-tiller logarithmic spiral line walking wheel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121017 |