CN2386431Y - Device for measuring tension of chain of electric bicycle - Google Patents
Device for measuring tension of chain of electric bicycle Download PDFInfo
- Publication number
- CN2386431Y CN2386431Y CN 99243918 CN99243918U CN2386431Y CN 2386431 Y CN2386431 Y CN 2386431Y CN 99243918 CN99243918 CN 99243918 CN 99243918 U CN99243918 U CN 99243918U CN 2386431 Y CN2386431 Y CN 2386431Y
- Authority
- CN
- China
- Prior art keywords
- pressing
- chain
- depression bar
- controller
- sprocket
- 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
Links
Abstract
The utility model relates to a tension measuring device for a chain of an electrically assisted vehicle, which is composed of a pressing plate, a fixing seat, a pressing rod, a pressing sprocket, etc., wherein a flat fork of the electrically assisted vehicle is fastened with the fixing seat via the pressing plate; one end of the pressing rod is movably connected with the fixing seat, and the other end is connected with the pressing sprocket for supporting the chain; the fixing seat is provided with an adjustable stop block with a hole in which a stop pin for stopping the pressing rod is arranged. The lower end of the stop pin is tightly inlaid with a piezoelectric element and a conducting sheet which is connected with a conducting wire and communicated with a controller, or the upper and the lower sides in the middle of the pressing rod are provided with strain sheets connected with the controller via the conducting wire. Through measuring the tension of the chain, the utility model provides corresponding electrical force to achieve the goal of light ride.
Description
The utility model relates to a kind of chain device for measuring force of electric power-assisted vehicle.
The electronic rickshaw of riding at present by the manpower pedal, advances rickshaw by electric power and people's masterpiece driving force or when having electricity.But often need a kind of matching relationship of suitable mutual increasing or decreasing between two kinds of power, that is to say, when firmly pedaling soon, needing to increase has electric boostedly accordingly, or manpower needs to reduce corresponding electric power-assisted when pedaling slowly, or the people does not give power-assisted when not pedaling.And the adapting device of existing two kinds of power can't reach the cooperation ratio of suitable increasing or decreasing, and the insensitive and information transmission of dynamometry is in hysteretic state, manipulates cumbersomely, and the cost of manufacture height also is not easy to maintenance.
The deficiency that the purpose of this utility model exists at prior art and provide a kind of simple in structure, cost is low, the sensitive transmission of dynamometry fast, the installation and maintenance chain device for measuring force of electric power-assisted vehicle easily, it can make power-jdriven gear record chain pull size when manpower is ridden and provide the power-assisted of proper ratio, reaches laborsaving power saving, light effect of riding.
The purpose of this utility model is achieved in that a kind of chain device for measuring force of electric power-assisted vehicle, comprise by driver, controller, battery and device for measuring force constitute, its device for measuring force is by pressing plate, holder, depression bar, compositions such as pressing sprocket, its mainly be on the chain stay of electric power-assisted vehicle by pressing plate fastening holder, depression bar one end flexibly connects by pressure shaft and holder, the other end wheel pressing shaft of depression bar is flexibly connecting pressing sprocket, the upper end of pressing sprocket is pressing closer the chain that connects sprocket wheel and flywheel, chain is polyline shaped, middle adjustable limiting spare with holes is housed on the holder below the depression bar, and it is fastening by nut, be provided with the shelves pin that blocks depression bar in the locating part hole, shelves pin lower end tightly is embedded with piezoelectric element and conducting strip, and conducting strip is connected with lead, and lead is communicated with controller; Or foil gauge is equipped with in both sides about in the depression bar middle part, and foil gauge is connected with controller by lead.Its principle of work is by measuring the pulling force of chain, judging that the cyclist wants to strengthen the power of pedaling to quicken, and still reduces to pedal power and slows down, the change transitions of pedaling power is become electric signal, transport to computer controller, the output of Control Driver motor power-assist power reaches laborsaving power saving, light purpose of riding.
The utility model is simple in structure, cost is low, maintenance convenience, processing ease, dynamometry sensitivity are installed, and has suitable power-assisted relation.
Below in conjunction with accompanying drawing in detail the utility model is described in detail.
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model scheme of installation.
Shown in Fig. 1-2, a kind of chain device for measuring force of electric power-assisted vehicle, comprise by driver (1), controller (3), battery (4) and device for measuring force (2) constitute, its device for measuring force (2) is by pressing plate (8), holder (17), depression bar (12), pressing sprocket compositions such as (10), it is characterized in that: the chain stay of electric power-assisted vehicle (9) go up by pressing plate (18) fastening holder (17), one end of depression bar (12) flexibly connects by pressure shaft (15) and holder (17), the other end of depression bar (12) is flexibly connecting pressing sprocket (10) by wheel pressing shaft (11), the upper end of pressing sprocket (10) is pressing closer the chain (8) of connection sprocket wheel (7) and flywheel (16), adjustable limiting spare (13) with holes in the middle of being equipped with on the holder (17) of depression bar (12) below, and it is fastening by nut (22), be provided with the shelves pins (14) that block depression bar (12) in locating part (13) hole, shelves pin (14) lower end tightly is embedded with piezoelectric element (19) and conducting strip (21), conducting strip (21) is connected with lead (20), and lead (20) is communicated with controller (3); Or foil gauge (23) is equipped with in both sides about the middle part of depression bar (12), and foil gauge (23) is connected with controller (3) by lead.Its course of work is as follows: when the cyclist rides the pedal (5) of crank (6) end when riding, driving flywheel (16) with the coaxial sprocket wheel of fixing of crank (6) (7) by chain (8) clockwise rotates, chain (8) first half is tightened up, pressing sprocket (10) heads on chain (8) top chain (8) and is broken line shape, pressing sprocket (10) is subjected to a downward component, depression bar (12) is clockwise rotated around pressure shaft (15), but limited (13) are blocked, make pressing sprocket (10) can not produce displacement, downward component passes through by pressing sprocket (11), depression bar (12), pressure shaft (15), locating part (13), the machinery that the chain press that shelves pins (14) are formed zooms into several times changes power, by depression bar (12), shelves pins (14) are passed to piezoelectric element (19), by conducting strip (21), the electric signal of a variation of lead (20) output is to controller (3); Or when depression bar (12) under the acting in conjunction of the pressure of pressing sprocket (12) and locating part (13), it is crooked that depression bar (12) will produce downward trace, by be positioned on depression bar (12) up and down the foil gauge of both sides (23) trace after stressed changes according to depression bar (12), the electric signal of a variation of same output is to controller (3), analyze judgement by the computer of controller (3) again, the size of current of motor in the control enter drive (1).Ride fast, the power of pedaling just strengthens, and the electric signal that detects inverting element output strengthens, and is just increased by the moving rate of driver (1) the motor power-assist under controller (3) control, and vice versa, reaches laborsaving and energy-conservation, the light purpose of riding of electric power-assisted vehicle of cyclist thus.
Claims (2)
1. the chain device for measuring force of an electric power-assisted vehicle, comprise by driver (1), controller (3), battery (4) and device for measuring force (2) constitute, its device for measuring force (2) is by pressing plate (18), holder (17), depression bar (12), pressing sprocket compositions such as (10), it is characterized in that: the chain stay of electric power-assisted vehicle (9) go up by pressing plate (18) fastening holder (17), depression bar (12) one ends flexibly connect by pressure shaft (15) and holder (17), the other end of depression bar (12) is flexibly connecting pressing sprocket (10) by wheel pressing shaft (11), the upper end of pressing sprocket (10) is pressing closer the chain (8) of connection sprocket wheel (7) and flywheel (16), on the holder (17) of depression bar (12) below, adjustable limiting spare (13) is housed, and it is fastening by nut (22), be provided with the shelves pins (14) that block depression bar (12) in locating part (13) hole, shelves pin (14) lower end tightly is embedded with piezoelectric element (19) and conducting strip (21), conducting strip (21) is connected with lead (20), and lead (20) is communicated with controller (3).
2. chain device for measuring force according to claim 1 is characterized in that: foil gauge (23) is equipped with in both sides up and down in depression bar (12) middle part, and foil gauge (23) is connected with controller (3) by lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99243918 CN2386431Y (en) | 1999-08-30 | 1999-08-30 | Device for measuring tension of chain of electric bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99243918 CN2386431Y (en) | 1999-08-30 | 1999-08-30 | Device for measuring tension of chain of electric bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2386431Y true CN2386431Y (en) | 2000-07-05 |
Family
ID=34030113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99243918 Expired - Fee Related CN2386431Y (en) | 1999-08-30 | 1999-08-30 | Device for measuring tension of chain of electric bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2386431Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743509A (en) * | 2014-01-13 | 2014-04-23 | 赵凤艳 | Damping torque sensor for electric vehicle |
-
1999
- 1999-08-30 CN CN 99243918 patent/CN2386431Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743509A (en) * | 2014-01-13 | 2014-04-23 | 赵凤艳 | Damping torque sensor for electric vehicle |
| CN103743509B (en) * | 2014-01-13 | 2015-12-23 | 天津市爽新电子科技有限公司 | Electric motor car damp type torque sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |