CN2218368Y - Single direction clutch for counter - Google Patents
Single direction clutch for counter Download PDFInfo
- Publication number
- CN2218368Y CN2218368Y CN 94246863 CN94246863U CN2218368Y CN 2218368 Y CN2218368 Y CN 2218368Y CN 94246863 CN94246863 CN 94246863 CN 94246863 U CN94246863 U CN 94246863U CN 2218368 Y CN2218368 Y CN 2218368Y
- Authority
- CN
- China
- Prior art keywords
- counter
- overcoat
- ratchet
- single direction
- utility
- 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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- Transmission Devices (AREA)
Abstract
The utility model relates to a mechanical single direction transmission mechanism, particularly a single direction transmission used for the counter of a kilowatt-hour meter. The utility model is characterized in that a casing (1) is matched with a steel shaft (4) in a clearance fit way, a ratchet wheel (3) and a end cover (5) are matched with the steel shaft (4) in an interference fit way, and a steel ball (2) is placed in the gap of the casing (1) and the ratchet wheel (3). The utility model can reduce the basic friction moment of a counter, decrease the variation of a counter, reduce the transmission blind angle of a counter, and improve the measuring accuracy of a counter.
Description
The utility model belongs to and has the oppositely not invention of gear train of unidirectional transmission in the mechanical drive, is particularly useful for watt-hour meter and uses with the unidirectional transmission of counter.
Known electric kilsyth basalt counter one-way driving mechanism adopts the click structure, and obviously weak point is that basic moment of friction is big, and because of the watt-hour meter output torque is especially little, metering moment of friction unit is the milligram centimetre-sized, and is strict to the basic moment of friction of register.The critical defect of click structure is that variation big (variation is the variation of the basic moment of friction value of counter) is equipped with strict demand in the installation position when using in pairs, when being equipped with mistake as the installation position, basic moment of friction and variation value is all increased.To be the blind angle of transmission big (transmission loss when the blind angle of transmission is forward and reverse transmission commutation) in counter works commutate the another shortcoming of click structure counting error is increased when frequent.More than three big defectives can not out-of-the-wayly exempt from, up to the present also do not have solution both at home and abroad.
The objective of the invention is to change the traditional unidirectional kind of drive of counter and reduce basic moment of friction, the variation of counter and reduce the blind angle of transmission, and when installing and using, do not have the requirement of position and direction.
The structure of one-way clutch of counter shown in the figure
The counter one-way clutch is by overcoat (1), and spin (2) ratchet (3) steel axle (4) and end cap (5) are formed.Overcoat (1) is a clearance fit with steel axle (4).Ratchet (3) and end cap (5) are interference fit with steel axle (4).Ball (2) is placed on respectively in overcoat (1) and ratchet (3) gap.When overcoat (1) during as the driving torque input end, steel axle (4) are the driving torque output terminal.When steel axle (4) during as the driving torque input end, overcoat (1) then is the driving torque output terminal.The aspect of ratchet (3) can be set arbitrarily.The direction of I/O and ratchet (3) can be provided with arbitrarily according to request for utilization.
Work as steel axle (4) as shown in the figure and rotate counterclockwise as the driving torque input end, ball (2) will be rotated by wedging overcoat (1) between overcoat (1) and ratchet (3) thereupon.When steel axle (4) when clockwise rotating, steel ball (2) is forced in the gap of overcoat (1) and ratchet (3), and overcoat (1) stops operating.Making transmission interrupt this mechanism has realized with the unidirectional transmission of steel axle (4) as the driving torque input end.
Work as overcoat (1) as shown in the figure and clockwise rotate as the driving torque input end, between overcoat (1) and ratchet (3), steel axle (4) will be with rotation by wedging for ball (2).When overcoat (1) when rotating counterclockwise, steel ball (2) is forced in the gap of overcoat (1) and ratchet (3), and steel axle (4) stops operating, and makes transmission interrupt this mechanism and realizes with the unidirectional transmission of overcoat (1) as the driving torque input end.
Work as overcoat as shown in the figure and be fixed, can realize that then steel axle (4) can only clockwise rotate, stop counterclockwise.This mechanism can realize limiting steel axle (4) one-directional rotation.
Work as steel axle (4) as shown in the figure and be fixed, can realize that then overcoat (1) can only rotate counterclockwise, stop clockwise.This mechanism can limit overcoat (1) folk prescription to rotation.
The basic moment of friction of using the present invention can reduce counter reduces the amount of deviation of counter, the accuracy of the little raising counter in the blind angle of transmission.Installation and use do not have the specific (special) requirements of position and direction when of the present invention.
Claims (1)
- A kind of counter one-way clutch, it is characterized in that being placed with between overcoat (1) and the ratchet (3) with steel ball (2) ratchet (3) of ratchet (3) number of teeth number same number and end cap (5) and form one with steel axle (4) interference fit, steel ball (2) is free to rotate in overcoat (1) and ratchet (3) maximal clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94246863 CN2218368Y (en) | 1994-12-04 | 1994-12-04 | Single direction clutch for counter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94246863 CN2218368Y (en) | 1994-12-04 | 1994-12-04 | Single direction clutch for counter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2218368Y true CN2218368Y (en) | 1996-01-24 |
Family
ID=33852244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94246863 Expired - Fee Related CN2218368Y (en) | 1994-12-04 | 1994-12-04 | Single direction clutch for counter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2218368Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104986682A (en) * | 2015-05-13 | 2015-10-21 | 上海舜海船舶设备有限公司 | Reel mechanism, rope deploying and retracting mechanism and sweeping device |
-
1994
- 1994-12-04 CN CN 94246863 patent/CN2218368Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104986682A (en) * | 2015-05-13 | 2015-10-21 | 上海舜海船舶设备有限公司 | Reel mechanism, rope deploying and retracting mechanism and sweeping device |
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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 |