CN108847363B - Ratchet mechanism and transmission mechanism and circuit breaker adopting same - Google Patents
Ratchet mechanism and transmission mechanism and circuit breaker adopting same Download PDFInfo
- Publication number
- CN108847363B CN108847363B CN201810957406.7A CN201810957406A CN108847363B CN 108847363 B CN108847363 B CN 108847363B CN 201810957406 A CN201810957406 A CN 201810957406A CN 108847363 B CN108847363 B CN 108847363B
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- CN
- China
- Prior art keywords
- ratchet
- mandrel
- pawl
- circuit breaker
- transmission
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- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/34—Driving mechanisms, i.e. for transmitting driving force to the contacts using ratchet
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a ratchet mechanism which comprises a ratchet, a mandrel and a pawl, wherein the inner ring of the ratchet is uniformly provided with ratchets with odd channels, the mandrel and the ratchet are coaxially arranged, the pawl penetrates through and is connected with the mandrel in a sliding manner along the radial direction of the mandrel, when one end of the pawl is attached to the root of the ratchet, the length of the other end of the pawl is smaller than or equal to the distance from the mandrel to the tip of the ratchet and is larger than the distance from the mandrel to the root of the ratchet. Also discloses a transmission mechanism and a circuit breaker adopting the ratchet mechanism. The pawl is connected to the mandrel in a sliding way, is pushed to stretch by the ratchet, does not need an elastic element, has a simple structure, is not easy to be blocked, and effectively improves the reliability.
Description
Technical Field
The invention relates to the field of ratchets, in particular to a ratchet mechanism, a transmission mechanism adopting the ratchet mechanism and a circuit breaker adopting the ratchet mechanism.
Background
The unidirectional intermittent motion mechanism consists of a ratchet wheel and a pawl, and is divided into an external engagement ratchet wheel mechanism and an internal engagement ratchet wheel mechanism in an engagement mode, wherein the basic structure of the internal engagement ratchet wheel mechanism comprises a ratchet wheel, a mandrel and a pawl, a plurality of ratchet teeth are uniformly arranged on the inner ring of the ratchet wheel, the mandrel and the ratchet wheel are coaxially arranged, the pawl is pressed against the ratchet teeth through elastic mechanisms such as a spring or an elastic piece, when the pawl rotates in the reverse ratchet direction, the ratchet wheel is driven to rotate, when the pawl rotates along the ratchet direction, the pawl is scratched from the ratchet teeth, and the ratchet wheel is static.
Due to the fact that the elastic mechanism is added, the structure of the pawl is complex, the stability of the action of the elastic mechanism is low, the pawl is blocked, and when the elastic mechanism is applied to products such as a circuit breaker, the circuit breaker is not operated once the pawl is blocked, so that serious safety accidents can be caused.
Disclosure of Invention
The invention aims to solve the technical problems of providing a ratchet mechanism, a transmission mechanism adopting the ratchet mechanism and a circuit breaker, and can solve the problems that the structure is complex and the risk of locking exists due to the fact that pawls of the existing ratchet are pressed on ratchet teeth by adopting an elastic mechanism.
The invention is realized by the following technical scheme:
the utility model provides a ratchet, includes ratchet, dabber and pawl, the inner circle of ratchet evenly is provided with the ratchet of odd number way, dabber and the coaxial setting of ratchet, the pawl runs through along the radial of dabber and sliding connection in the dabber, and when the root of ratchet was laminated to pawl one end, the length of the other end was less than or equal to dabber to the distance of the tip of ratchet, is greater than the distance of dabber to the root of ratchet.
The transmission mechanism of the ratchet mechanism is adopted, the ratchet is rotationally connected to the front surface of the base, the mandrel penetrates through the base, a rotary driving mechanism which is in transmission with the mandrel is arranged on the back surface of the base, and the ratchet is rotationally connected with a rocker.
The circuit breaker adopting the ratchet mechanism is characterized in that the mandrel is in transmission with the motor, and the ratchet is connected with an action mechanism of the circuit breaker through a rocker.
A circuit breaker adopting the transmission mechanism is provided.
Compared with the prior art, the invention has the advantages that:
the pawl sliding connection is in the dabber, promotes the flexible by the ratchet, does not need elastic element, and the structure is retrencied, is difficult for the card to die moreover, effectively improves the reliability.
Drawings
FIG. 1 is a schematic view of a ratchet mechanism.
Fig. 2 is a schematic diagram of a transmission mechanism.
Detailed Description
Example 1
The ratchet mechanism comprises a ratchet 1, a mandrel 2 and a pawl 3, wherein the inner ring of the ratchet 1 is uniformly provided with ratchets 4 with odd number channels, the mandrel 2 and the ratchet 1 are coaxially arranged, the pawl 3 penetrates through and is connected to the mandrel 2 in a sliding manner along the radial direction of the mandrel 2, when one end of the pawl 3 is attached to the root 6 of the ratchets 4, the length of the other end is smaller than or equal to the distance from the mandrel 2 to the tip 5 of the ratchets 4, and is larger than the distance from the mandrel 2 to the root 6 of the ratchets 4.
With the spindle 2 as an input shaft and the rotation of the ratchet 1 as an output, for example: the surface of the ratchet wheel 1 can be rotationally connected with a rocker, and teeth can be arranged on the outer edge of the ratchet wheel 1 for meshing transmission.
Example 2
The transmission mechanism shown in fig. 2 comprises a ratchet wheel 1, a mandrel 2 and a pawl 3, wherein the inner ring of the ratchet wheel 1 is uniformly provided with ratchets 4 with odd number channels, the mandrel 2 and the ratchet wheel 1 are coaxially arranged, the pawl 3 penetrates through and is connected with the mandrel 2 in a sliding manner along the radial direction of the mandrel 2, when one end of the pawl 3 is attached to the root 6 of the ratchets 4, the length of the other end is smaller than or equal to the distance from the mandrel 2 to the tip 5 of the ratchets 4, and is larger than the distance from the mandrel 2 to the root 6 of the ratchets 4.
The ratchet wheel 1 is rotatably connected to the front surface of the base 8, the mandrel 2 penetrates through the base 8, a rotary driving mechanism (not shown) which is in transmission with the mandrel 2 is mounted on the back surface of the base 8, and the rocker 7 is rotatably connected to the ratchet wheel 1.
The rotational drive mechanism may be, but is not limited to: electric motor, pneumatic motor, hydraulic motor.
Example 3
A circuit breaker employing the ratchet mechanism of embodiment 1, wherein the spindle 2 is driven by a motor, and the ratchet 1 is connected with an actuating mechanism of the circuit breaker through a rocker 7.
Example 4
A circuit breaker employing the transmission mechanism of embodiment 2.
Claims (4)
1. The utility model provides a ratchet, includes ratchet (1), dabber (2) and pawl (3), the inner circle of ratchet (1) evenly is provided with ratchet (4) of odd number way, dabber (2) and ratchet (1) coaxial setting, its characterized in that: the pawl (3) penetrates through the mandrel (2) along the radial direction of the mandrel (2) and is connected with the mandrel (2) in a sliding mode, when one end of the pawl (3) is attached to the root (6) of the ratchet (4), the length of the other end of the pawl is smaller than or equal to the distance from the mandrel (2) to the tip (5) of the ratchet (4), and is larger than the distance from the mandrel (2) to the root (6) of the ratchet (4).
2. A transmission employing the ratchet mechanism of claim 1, wherein: the ratchet wheel (1) is rotationally connected to the front side of the base (8), the mandrel (2) penetrates through the base (8), a rotary driving mechanism which is in transmission with the mandrel (2) is mounted on the back side of the base (8), and the rocker (7) is rotationally connected to the ratchet wheel (1).
3. A circuit breaker employing the ratchet mechanism of claim 1, wherein: the core shaft (2) is in transmission with the motor, and the ratchet wheel (1) is connected with an action mechanism of the circuit breaker through the rocker (7).
4. A circuit breaker employing the transmission mechanism of claim 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810957406.7A CN108847363B (en) | 2018-08-22 | 2018-08-22 | Ratchet mechanism and transmission mechanism and circuit breaker adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810957406.7A CN108847363B (en) | 2018-08-22 | 2018-08-22 | Ratchet mechanism and transmission mechanism and circuit breaker adopting same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108847363A CN108847363A (en) | 2018-11-20 |
| CN108847363B true CN108847363B (en) | 2023-09-12 |
Family
ID=64188500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810957406.7A Active CN108847363B (en) | 2018-08-22 | 2018-08-22 | Ratchet mechanism and transmission mechanism and circuit breaker adopting same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108847363B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2399553Y (en) * | 1999-09-09 | 2000-10-04 | 金锋 | Ratchet overtaking clutch having multiple pawls |
| CN2699051Y (en) * | 2004-04-30 | 2005-05-11 | 宁波小星星车业有限公司 | Wheel pin device for baby carriage |
| DE102005017212A1 (en) * | 2005-04-14 | 2006-10-19 | Sram Deutschland Gmbh | Freewheeling hub mechanism for cycle, includes carrier for spring-loaded pawls acting against blocking teeth to transmit drive |
| CN101666265A (en) * | 2008-09-05 | 2010-03-10 | 高小钢 | Driving mechanism of reciprocating internal combustion engine |
| CN201714944U (en) * | 2010-05-19 | 2011-01-19 | 浙江吉利汽车研究院有限公司 | One-way transmission gear |
| CN104274944A (en) * | 2014-08-18 | 2015-01-14 | 徐文进 | Music stepping machine |
| CN104766766A (en) * | 2015-04-10 | 2015-07-08 | 厦门宏发开关设备有限公司 | Transmission mechanism for electric leakage reclosing circuit breaker |
| CN105351613A (en) * | 2015-12-02 | 2016-02-24 | 中江中通机电科技有限公司 | Valve handle system using ratchet structure |
| CN206493842U (en) * | 2017-02-08 | 2017-09-15 | 河南科技学院 | Gas with threshold speed steps on mechanical locking arrangement by mistake |
| CN206904166U (en) * | 2017-05-11 | 2018-01-19 | 史建军 | A kind of buncher of the pure engaged transmission of pawl ratchet |
| CN208478173U (en) * | 2018-08-22 | 2019-02-05 | 江苏苏益电器股份有限公司 | A kind of ratchet mechanism and transmission mechanism, breaker using the ratchet mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080083595A1 (en) * | 2006-05-19 | 2008-04-10 | Spiegel Clinton J | Multi-tooth pawl type gearing mechanism |
-
2018
- 2018-08-22 CN CN201810957406.7A patent/CN108847363B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2399553Y (en) * | 1999-09-09 | 2000-10-04 | 金锋 | Ratchet overtaking clutch having multiple pawls |
| CN2699051Y (en) * | 2004-04-30 | 2005-05-11 | 宁波小星星车业有限公司 | Wheel pin device for baby carriage |
| DE102005017212A1 (en) * | 2005-04-14 | 2006-10-19 | Sram Deutschland Gmbh | Freewheeling hub mechanism for cycle, includes carrier for spring-loaded pawls acting against blocking teeth to transmit drive |
| CN101666265A (en) * | 2008-09-05 | 2010-03-10 | 高小钢 | Driving mechanism of reciprocating internal combustion engine |
| CN201714944U (en) * | 2010-05-19 | 2011-01-19 | 浙江吉利汽车研究院有限公司 | One-way transmission gear |
| CN104274944A (en) * | 2014-08-18 | 2015-01-14 | 徐文进 | Music stepping machine |
| CN104766766A (en) * | 2015-04-10 | 2015-07-08 | 厦门宏发开关设备有限公司 | Transmission mechanism for electric leakage reclosing circuit breaker |
| CN105351613A (en) * | 2015-12-02 | 2016-02-24 | 中江中通机电科技有限公司 | Valve handle system using ratchet structure |
| CN206493842U (en) * | 2017-02-08 | 2017-09-15 | 河南科技学院 | Gas with threshold speed steps on mechanical locking arrangement by mistake |
| CN206904166U (en) * | 2017-05-11 | 2018-01-19 | 史建军 | A kind of buncher of the pure engaged transmission of pawl ratchet |
| CN208478173U (en) * | 2018-08-22 | 2019-02-05 | 江苏苏益电器股份有限公司 | A kind of ratchet mechanism and transmission mechanism, breaker using the ratchet mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108847363A (en) | 2018-11-20 |
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