CN103950388A - Speed limiting device of household electric bicycle - Google Patents
Speed limiting device of household electric bicycle Download PDFInfo
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- CN103950388A CN103950388A CN201410167606.4A CN201410167606A CN103950388A CN 103950388 A CN103950388 A CN 103950388A CN 201410167606 A CN201410167606 A CN 201410167606A CN 103950388 A CN103950388 A CN 103950388A
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- steel ball
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- speed
- household electric
- outer drum
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Abstract
The invention relates to a speed limiting device of a household electric bicycle. The speed limiting device of the household electric bicycle comprises a fixed outer drum and a rotating part consisting of four same steel balls corresponding to four same springs and a center shaft, and is characterized in that the four same springs are respectively fixed to a cross-shaped rotating frame on the periphery of the center shaft positioned in the fixed outer drum; the four same steel balls are respectively fixed to the four same springs. After the adoption of the scheme, when the speed of the household electric bicycle is accelerated continuously, the rotating speed of the center shaft is accelerated continuously, the springs fixed to the cross-shaped rotating frame on the periphery of the center rotating shaft and the steel balls are rotated together; the speed is higher, the centrifugal force of the steel balls is higher, and the springs are elongated continuously so that the steel balls are in contact with the outer drum; as the outer drum is fixed, the steel balls move relative to the outer drum, and an effect of reducing the speed is achieved by friction.
Description
Technical field
The present invention relates to a kind of speed-limit device of Household electric motor car, especially family's routine use, as propulsion source, utilizes the work of mechanical friction principle with storage battery, can automatically regulate and limited speed, thereby prevent the speed-limit device of the Household electric motor car of battery-driven car hypervelocity.
Background technology
In modern society, battery-driven car, as the walking-replacing tool of people's daily life, is compared the more energy-conserving and environment-protective of automobile, motor, so be subject to very much everybody welcome.Because collision accident easily occurs battery-driven car excessive velocities, from security standpoint, the speed of restriction battery-driven car is just very necessary.Just current, the speed limit mode of existing battery-driven car has multiple.After the domestic various Household electric motor car speed-limit devices of research, find, the speed-limit device of most Household electric motor car is mostly to adopt electronic speed limit.But the very power consumption of electronic speed limit, and be easy to damage, be prone to accidents.
Summary of the invention
Technical matters to be solved by this invention is: a kind of family routine use is provided, with storage battery as propulsion source, application machine tribology principle, volitional check speed, thereby prevent the speed-limit device of the Household electric motor car of battery-driven car hypervelocity.
The technical solution used in the present invention is: a kind of speed-limit device of Household electric motor car, comprise fixing outer drum, the rotatable parts that four identical steel balls (steel ball 2, steel ball 4, steel ball 6, steel ball 8) that four identical springs (spring 3, spring 5, spring 7, spring 9) are corresponding and central rotating shaft form; It is characterized in that: on the central rotating shaft that is positioned at fixing outer drum criss-cross turret around, be fixed with respectively four identical springs (spring 3, spring 5, spring 7, spring 9); On four identical springs (spring 3, spring 5, spring 7, spring 9), be fixed with respectively four identical steel balls (steel ball 2, steel ball 4, steel ball 6, steel ball 8).
The speed-limit device of Household electric motor car, is characterized in that, the diameter of four identical steel balls (steel ball 2, steel ball 4, steel ball 6, steel ball 8) is greater than respectively the length of four identical springs (spring 3, spring 5, spring 7, spring 9).
The speed-limit device of Household electric motor car, is characterized in that, the part that four identical steel balls (steel ball 2, steel ball 4, steel ball 6, steel ball 8) and outer drum rub is mutually soft rub resistance material.
The speed-limit device of Household electric motor car, it is characterized in that, by changing the stiffness coefficient K of four identical springs and/or passing through to change under initial condition, the distance of four identical steel balls (steel ball 2, steel ball 4, steel ball 6, steel ball 8) and outer drum 1 is determined the critical speed of Household electric motor car.
The invention has the beneficial effects as follows: can effectively limit the size of electric household vehicle speed, and simple in structure, safe and reliable.
Its speed limit principle is: due to Household electric motor car under steam speed constantly accelerate, the rotating speed of central rotating shaft is also constantly accelerated, around central rotating shaft, on criss-cross turret, fixing spring rotates together with steel ball, speed is faster, the centnifugal force of steel ball is larger, and spring constantly extends steel ball is contacted with fixing outer drum, because outer drum is fixed, so steel ball produces relative motion with fixing outer drum, is reached the effect of deceleration by friction.
Accompanying drawing explanation
Fig. 1 is a kind of speed-limit device structure principle chart of Household electric motor car.
In figure, 1 is outer drum, and 2 is steel ball, and 3 is spring, and 4 is steel ball, and 5 is spring, and 6 is steel ball, and 7 is spring, and 8 is steel ball, and 9 is spring, rotating shaft centered by 10.
The specific embodiment
Below by specific embodiment, the present invention is described in further detail.
Embodiment 1: as shown in Figure 1.A speed-limit device for Household electric motor car, comprises the rotatable parts that 1, four identical springs 3 of fixing outer drum, spring 5, spring 7,9, four identical steel balls 2 of spring, steel ball 4, steel ball 6, steel ball 8 and central rotating shaft 10 form; It is characterized in that: on the central rotating shaft 10 that is positioned at fixing outer drum 1 criss-cross turret around, be fixed with respectively four identical springs 3, spring 5, spring 7, spring 9; On four identical springs 3, spring 5, spring 7, spring 9, be fixed with respectively four identical steel balls 2, steel ball 4, steel ball 6, steel ball 8.
The speed-limit device of Household electric motor car, is characterized in that, the diameter of four identical steel balls 2, steel ball 4, steel ball 6, steel ball 8 is greater than the length of four identical springs 3, spring 5, spring 7, spring 9.
The speed-limit device of Household electric motor car, is characterized in that, the part that four identical steel balls 2, steel ball 4, steel ball 6, steel ball 8 and outer drum 1 rub is mutually soft rub resistance material.
Beneficial effect is: battery-driven car in the process of moving, because speed is constantly accelerated, the rotating speed of central rotating shaft is also constantly accelerated, fixing spring 3 on criss-cross turret around central rotating shaft 10 drives, spring 5, spring 7, spring 9 and steel ball 2, steel ball 4, steel ball 6, steel ball 8 rotates together, speed is faster, steel ball 2, steel ball 4, steel ball 6, the centnifugal force of steel ball 8 is larger, spring 3, spring 5, spring 7, spring 9 constantly extends, steel ball 2, steel ball 4, steel ball 6, steel ball 8 contacts with fixing outer drum, fixing outer drum 1 and steel ball 2, steel ball 4, steel ball 6, steel ball 8 produces relative motion, by friction, reached the effect of deceleration.
Embodiment 2: as shown in Figure 1.A speed-limit device for Household electric motor car, comprises the rotatable parts that 1, four identical springs 3 of fixing outer drum, spring 5, spring 7,9, four identical steel balls 2 of spring, steel ball 4, steel ball 6, steel ball 8 and central rotating shaft 10 form; It is characterized in that: on the central rotating shaft 10 that is positioned at fixing outer drum 1 criss-cross turret around, be fixed with respectively four identical springs 3, spring 5, spring 7, spring 9; On four identical springs 3, spring 5, spring 7, spring 9, be fixed with respectively four identical steel balls 2, steel ball 4, steel ball 6, steel ball 8.
The speed-limit device of Household electric motor car, is characterized in that, the diameter of four identical steel balls 2, steel ball 4, steel ball 6, steel ball 8 is greater than the length of four identical springs 3, spring 5, spring 7, spring 9.
The speed-limit device of Household electric motor car, is characterized in that, the part that four identical steel balls 2, steel ball 4, steel ball 6, steel ball 8 and outer drum 1 rub is mutually soft rub resistance material.
Beneficial effect is: Household electric motor car in the process of moving, because speed is constantly accelerated, the rotating speed of central rotating shaft is also constantly accelerated, fixing spring 3 on criss-cross turret around central rotating shaft 10 drives, spring 5, spring 7, spring 9 and steel ball 2, steel ball 4, steel ball 6, steel ball 8 rotates together, speed is faster, steel ball 2, steel ball 4, steel ball 6, the centnifugal force of steel ball 8 is larger, spring 3, spring 5, spring 7, spring 9 constantly extends, steel ball 2, steel ball 4, steel ball 6, steel ball 8 contacts with fixing outer drum, fixing outer drum 1 and steel ball 2, steel ball 4, steel ball 6, steel ball 8 produces relative motion, by friction, reached the effect of deceleration.
If speed is not very fast, spring 3, spring 5, spring 7, spring 9 are not enough to provide the centnifugal force of steel ball 2, steel ball 4, steel ball 6, steel ball 8, and steel ball 2, steel ball 4, steel ball 6, steel ball 8 do not contact with fixing outer flexible 1, so steel ball 2, steel 4, steel ball 6, steel ball 8 and fixing not friction of outer drum 1, do not slow down.When only reaching certain speed, just can slow down, during lower than this critical speed, can not slow down.
By changing the stiffness coefficient K of four identical springs 3, spring 5, spring 7, spring 9 and/or changing under initial condition, the distance of steel ball 2, steel ball 4, steel ball 6, steel ball 8 and outer drum 1 is determined the critical speed of Household electric motor car.
Claims (4)
1. the speed-limit device of a Household electric motor car, comprise fixing outer drum (1), four identical springs (3), spring (5), spring (7), spring (9), the rotatable parts that four identical steel balls (2), steel ball (4), steel ball (6), steel ball (8) and central rotating shaft (10) form; It is characterized in that: on the central rotating shaft (10) that is positioned at fixing outer drum (1) criss-cross turret around, be fixed with respectively four identical springs (3), spring (5), spring (7), spring (9); On four identical springs (3), spring (5), spring (7), spring (9), be fixed with respectively four identical steel balls (2), steel ball (4), steel ball (6), steel ball (8).
2. according to the speed-limit device of Household electric motor car claimed in claim 1, it is characterized in that, the diameter of four identical steel balls (2), steel ball (4), steel ball (6), steel ball (8) is greater than the length of four identical springs (3), spring (5), spring (7), spring (9).
3. according to the speed-limit device of Household electric motor car claimed in claim 1, it is characterized in that, the part that four identical steel balls (2), steel ball (4), steel ball (6), steel ball (8) and outer drum (1) rub is mutually soft rub resistance material.
4. according to the speed-limit device of Household electric motor car claimed in claim 1, it is characterized in that, by changing the stiffness coefficient K of four identical springs 3, spring 5, spring 7, spring 9 and/or passing through to change under initial condition, the distance of four identical steel balls 2, steel ball 4, steel ball 6, steel ball 8 and outer drums 1 is determined the critical speed of Household electric motor car.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410167606.4A CN103950388A (en) | 2014-04-24 | 2014-04-24 | Speed limiting device of household electric bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410167606.4A CN103950388A (en) | 2014-04-24 | 2014-04-24 | Speed limiting device of household electric bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103950388A true CN103950388A (en) | 2014-07-30 |
Family
ID=51327796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410167606.4A Pending CN103950388A (en) | 2014-04-24 | 2014-04-24 | Speed limiting device of household electric bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103950388A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108926437A (en) * | 2018-07-13 | 2018-12-04 | 深圳市雷凌广通技术研发有限公司 | A kind of wheelchair with deceleration |
| CN112339895A (en) * | 2020-11-10 | 2021-02-09 | 王悦 | Centrifugal speed-limiting child skateboard |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1431169A (en) * | 1916-02-04 | 1922-10-10 | Alden L Mcmurtry | Speed regulator for motor vehicles |
| GB892840A (en) * | 1958-12-09 | 1962-03-28 | Cie De Pont A Mousson | Improvements in and relating to devices for control of gearboxes |
| CN2484214Y (en) * | 2001-05-10 | 2002-04-03 | 蔡华卿 | Improvement of power speed-regulating mechanism of locomotive |
| CN1861439A (en) * | 2006-06-16 | 2006-11-15 | 宋强 | Constant speed apparatus for vehicle |
| DE102005020675A1 (en) * | 2005-05-03 | 2006-11-16 | Volkswagen Ag | Electric motor has speed regulation provided by having balls that move radially outward due to centrifugal force |
| CN201176242Y (en) * | 2007-12-13 | 2009-01-07 | 李正清 | Auto speed limiting safety installation for bicycle |
| CN202669502U (en) * | 2012-07-10 | 2013-01-16 | 常州杰恒汽车电器有限公司 | Constant-speed driving controller |
| CN203920443U (en) * | 2014-04-24 | 2014-11-05 | 湖南工业大学 | A kind of speed-limit device of Household electric motor car |
-
2014
- 2014-04-24 CN CN201410167606.4A patent/CN103950388A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1431169A (en) * | 1916-02-04 | 1922-10-10 | Alden L Mcmurtry | Speed regulator for motor vehicles |
| GB892840A (en) * | 1958-12-09 | 1962-03-28 | Cie De Pont A Mousson | Improvements in and relating to devices for control of gearboxes |
| CN2484214Y (en) * | 2001-05-10 | 2002-04-03 | 蔡华卿 | Improvement of power speed-regulating mechanism of locomotive |
| DE102005020675A1 (en) * | 2005-05-03 | 2006-11-16 | Volkswagen Ag | Electric motor has speed regulation provided by having balls that move radially outward due to centrifugal force |
| CN1861439A (en) * | 2006-06-16 | 2006-11-15 | 宋强 | Constant speed apparatus for vehicle |
| CN201176242Y (en) * | 2007-12-13 | 2009-01-07 | 李正清 | Auto speed limiting safety installation for bicycle |
| CN202669502U (en) * | 2012-07-10 | 2013-01-16 | 常州杰恒汽车电器有限公司 | Constant-speed driving controller |
| CN203920443U (en) * | 2014-04-24 | 2014-11-05 | 湖南工业大学 | A kind of speed-limit device of Household electric motor car |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108926437A (en) * | 2018-07-13 | 2018-12-04 | 深圳市雷凌广通技术研发有限公司 | A kind of wheelchair with deceleration |
| CN112339895A (en) * | 2020-11-10 | 2021-02-09 | 王悦 | Centrifugal speed-limiting child skateboard |
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Application publication date: 20140730 |