CN207474399U - A kind of push and pull system of circuit breaker operation mechanism - Google Patents
A kind of push and pull system of circuit breaker operation mechanism Download PDFInfo
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- CN207474399U CN207474399U CN201721612405.6U CN201721612405U CN207474399U CN 207474399 U CN207474399 U CN 207474399U CN 201721612405 U CN201721612405 U CN 201721612405U CN 207474399 U CN207474399 U CN 207474399U
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- connecting rod
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Abstract
A kind of push and pull system of circuit breaker operation mechanism, belongs to low voltage electrical apparatus technology field.Including a pair of side plates, energy-stored spring component, energy storage lever assembly, link assembly between a pair of side plates, in the making process of operating mechanism, the energy-stored spring component drives the rotation of energy storage lever assembly, driving link assembly action after the energy storage lever assembly rotation, it is characterised in that：Further include one to be mounted on side plate, and the braking roll between a pair of side plates, the braking roll independently of link assembly, when link assembly feed motion in place after "on" position is maintained at by the conflict with braking roll.Effectively increase the reliability of the snap fit between link assembly and separating brake lever.
Description
Technical field
The utility model belongs to low voltage electrical apparatus technology field, and in particular to a kind of push and pull system of circuit breaker operation mechanism.
Background technology
Push and pull system is one of important component of circuit breaker operation mechanism, directly shaft is driven to rotate, and realizes on/off switch
Operation.Most of push and pull system in existing operating mechanism crosses dead point structure to ensure breaker closing in place using double leval jib,
And "on" position is maintained at, this is just it has to be ensured that link assembly reliable can cross dead point, while protected after ensureing dead point
This state is handled, limiting rod is also wanted to occur overshooting and damage parts, so having to limit there are one position limiting structure
Connecting rod overshoots, it is ensured that push and pull system can be maintained at "on" position and be not in overshoot.
As shown in Figure 1, Figure 2, it is existing circuit breaker operation mechanism schematic diagram.The operating mechanism includes a pair of side plates 1,
Energy-stored spring component 3, energy storage lever assembly 2, link assembly 4 are equipped between described a pair of side plates 1.The energy-stored spring group
Part 3 drives energy storage lever assembly 2 to rotate, and energy storage lever assembly 2 pushes link assembly 4 to carry out feed motion after rotating.It is described
Link assembly 4 include first connecting rod 41, second connecting rod 42, selector bar 43, separating brake lever 44.Main shaft 6 is rotatably arranged on operation
The side of mechanism, and hinged by the first articulated shaft 45 with first connecting rod 41, and first connecting rod 41 and second connecting rod 42 pass through the
Two articulated shafts 46 are hinged, and second connecting rod 42 is hinged by third articulated shaft 47 with selector bar 43.Selector bar 43 is rotatably arranged on one
To on side plate 1, one end of selector bar 43 is latched by separating brake lever 44, i.e., when separating brake lever 44 does not release the lock to selector bar 43
When, the selector bar 43 cannot rotate.And in operating mechanism making process, since separating brake lever 44 does not receive point
The instruction of lock semiaxis 5 latches the selector bar 43, and the selector bar 43 can not rotate, at this time link assembly 4
For four-bar mechanism.Energy storage lever assembly 2 is rotated, and by the driving of energy-stored spring component 3 by energy storage lever assembly 2
On the strike of impeller-hub 26 be located on second connecting rod 42 by push shaft 421, so as to which link assembly 4 be pushed to act.When the first company
Bar 41 and second connecting rod 42 are behind dead-centre position, and second articulated shaft 46 is collided on selector bar 43 and stopped, at this time
Link assembly 4 is in in-place closing state.Due to the selector bar 43 and 44 snap fit of separating brake lever, and selector bar 43 is held
The stability that will be unfavorable for selector bar 43 and separating brake lever 44 by collision and latched.
Existing circuit breaker operation mechanism first passes through Fig. 2 states in making process, enters back into Fig. 1 states.It can from figure
To find out, when the first articulated shaft 45, the second articulated shaft 46 and third articulated shaft 47 are in a linear state, i.e. dead-centre position
When, the impeller-hub 26 on the energy storage lever assembly 2 has been left by push shaft 421, i.e. energy storage lever assembly 2 no longer gives connection rod set
Part 4 provides driving force, and link assembly 4 crosses dead point by the inertia of itself, this cause operating mechanism can in-place closing obtain
Ensure less than effective.
Invention content
The task of the utility model is to provide for a kind of push and pull system of circuit breaker operation mechanism, and link assembly is being crossed
It is no longer braked by link assembly itself behind dead-centre position, matched so as to improve the lock between link assembly and separating brake lever
The reliability of conjunction.
What the task of the utility model was performed by, a kind of push and pull system of circuit breaker operation mechanism, including a pair
Side plate, energy-stored spring component, energy storage lever assembly, link assembly between a pair of side plates, in the combined floodgate of operating mechanism
Cheng Zhong, the energy-stored spring component drive the rotation of energy storage lever assembly, drive link after energy storage lever assembly rotation
Component acts, and further includes one and is mounted on side plate, and the braking roll between a pair of side plates, the braking roll is independently of even
Bar assembly, when link assembly feed motion in place after "on" position is maintained at by the conflict with braking roll.
In a specific embodiment of the utility model, the operating mechanism further includes the master of rotation setting
Axis；The link assembly includes first connecting rod, second connecting rod, selector bar, separating brake lever, and one end of the first connecting rod leads to
It crosses the first articulated shaft to be hinged with the fin on main shaft, the other end of the first connecting rod passes through the second articulated shaft and second connecting rod
One end be hinged, the other end of the second connecting rod is hinged by third articulated shaft with selector bar, and the separating brake lever leads to
Excessive brake lever rod rotation axis is rotatably arranged between a pair of side plates, selector bar rotation setting and with separating brake lever lock snap fit
It closes.
In another specific embodiment of the utility model, the braking roll is a circular shaft and and link assembly
The second articulated shaft be in contact cooperation.
In another specific embodiment of the utility model, the braking roll is a circular shaft and and link assembly
First connecting rod or second connecting rod be in contact cooperation.
The utility model so that in a specific embodiment, the energy storage lever assembly includes a pair of of lever
Piece, a pair of of lever piece are arranged at intervals, and have the pressing surface for coordinating with link assembly in a pair of of lever on piece, described
Pressing surface for pushing the second articulated shaft, in being located at the first jointed shaft center and third articulated shaft when the center of the second articulated shaft
When on the line of the heart, the pressing surface is in contact condition with the second articulated shaft.
In the utility model more and in a specific embodiment, operating mechanism separating brake in place after, the main shaft
It collides and stops operating with braking roll.
The utility model again so that a specific embodiment in, operating mechanism separating brake in place after, the master
The fin of axis is collided with braking roll and is stopped operating.
The utility model is due to the above structure, having the advantage that：Link assembly is after dead-centre position is crossed
It is no longer braked by link assembly itself, but braking is realized, and be maintained at breaker by the collision with braking roll
"on" position, the structure effectively increase the reliability of the snap fit between link assembly and separating brake lever.
Description of the drawings
Fig. 1 is a kind of status diagram inside existing circuit breaker operation mechanism.
Fig. 2 is another status diagram inside existing circuit breaker operation mechanism.
Fig. 3 is a kind of status diagram in operating mechanism making process in the utility model.
Fig. 4 is another status diagram in operating mechanism making process in the utility model.
Fig. 5 is another status diagram in operating mechanism making process in the utility model.
Fig. 6 is the structure diagram of energy storage lever assembly in the utility model.
Fig. 7 is the structure diagram of link assembly in the utility model.
In figure：1. side plate；2. energy storage lever assembly, 21. lever pieces, 211. pressing surface, 22. fixing axles, 23. springs coordinate
Axis, 24. axle sleeves, 25. cam engagement rollers, 26. impeller-hubs；3. energy-stored spring component；4. link assembly, 41. first connecting rods,
42. second connecting rod, 421. are hinged by push shaft, 43. selector bars, 44. separating brake levers, 441. separating brake lever rotation axis, 45. first
Axis, 46. second articulated shafts, 47. third articulated shafts；5. separating brake semiaxis；6. main shaft, 61. fins；7. braking roll.
Specific embodiment
Applicant will below be described in detail, but applicant is to reality specific embodiment of the present utility model with reference to attached drawing
The description for applying example is not the limitation to technical solution, and any changed in the form rather than substance according to the utility model design all should
When being considered as the scope of protection of the utility model.
Such as Fig. 3~Fig. 5, operating mechanism described in the utility model includes a pair of side plates 1, and described a pair of side plates 1 is located at
The left and right sides of operating mechanism, it is fixed and positioned for being provided for the component inside operating mechanism.It is equipped between a pair of side plates 1
Energy-stored spring component 3, energy storage lever assembly 2, link assembly 4, separating brake semiaxis 5, main shaft 6 and braking roll 7.Energy-stored spring component 3
For providing the power of action for operating mechanism.Energy is stored when the spring-compressed of energy-stored spring component 3, and in energy storage bullet
During the spring release of spring component 3, release energy and acted with pneumatic operating mechanism internal part.Energy storage lever assembly 2 receives energy storage
The driving of spring assembly 3 and swing, and then feed motion is carried out by 2 drive link component 4 of energy storage lever assembly.Link assembly 4
For receiving the driving of energy storage lever assembly 2 and main shaft 6 being driven to rotate.Main shaft 6 is rotatably arranged on a pair of side plates 1 close to breaker
The side of pedestal, main shaft 6 drive the contact system action being located inside circuit breaker base after rotating.Braking roll 7 is fixedly mounted on
Between a pair of side plates 1, braking roll 7 is contradicted with braking roll 7 after link assembly 4 is in in-place closing and is stopped independently of link assembly 4
Only move.
Fig. 6 is the structure diagram of energy storage lever assembly 2.Specifically, energy storage lever assembly 2 include a pair of of lever piece 21,
Fixing axle 22, spring fitted shaft 23, cam engagement roller 25 and axle sleeve 24.A pair of of lever piece 21 is arranged at intervals, fixed
Axis 22 is located between a pair of of lever piece 21, and the lever piece 21 is in herringbone, wherein one end of two divergent ends of the same side
On be equipped in spring fitted shaft 23, the wherein other end cam engagement roller 25 be installed, the spring fitted shaft 23 is used for
Coordinate with energy-stored spring component 3, the cam engagement roller 25 is used for and cam engagement, and cam is as energy storage lever assembly 2
Valve member, lockable or unlock energy storage lever assembly 2.And lever piece 21 offers the rotation of lever piece on lambdoid head
Hole, an axle sleeve 24 pass through the lever piece rotation hole.Energy storage lever rotation axis, 24 sets of axle sleeve are installed between a pair of side plates 1
On energy storage lever rotation axis, set so as to complete the rotation of energy storage lever assembly 2.
Such as the structure diagram that Fig. 7 is link assembly 4, the link assembly 4 includes first connecting rod 41, second connecting rod
42nd, selector bar 43, separating brake lever 44.One end of the first connecting rod 41 passes through the first articulated shaft 45 and the fin on main shaft 6
61 is hinged.The other end of the first connecting rod 41 and one end of second connecting rod 42 are hinged by the second articulated shaft 46.Described
The other end of second connecting rod 42 is hinged by third articulated shaft 47 and selector bar 43.Separating brake lever 44 passes through a separating brake lever rotation
Axis 441 is rotatably arranged between a pair of side plates 1, the selector bar 43 and 44 snap fit of separating brake lever.
There is the pressing surface 211 for coordinating with link assembly 4, the specific pressing surface on a pair of of lever piece 21
211 push the second articulated shaft 46.
Fig. 3~Fig. 5 is specifically shown in, following direction describes to be subject in scheming.In making process, the energy storage lever assembly
2 in swing process 2 clockwise oscillation of energy storage lever assembly, a pair of of lever piece 21 also clockwise oscillation, pressing surface 211 thereon
The second articulated shaft 46 is pushed to move up.In entire making process, the separating brake semiaxis 5 locks separating brake lever 44, separating brake
Lever 44 locks the rotating bar 43 so that rotating bar 43 can not rotate.So as to by the fin 61 of main shaft 6, second connecting rod 41,
Fixed range between the center of rotation of the center of rotation and third articulated shaft 47 of second connecting rod 42 and fin 61 constitutes one
Four-bar linkage system.In making process, the energy storage lever assembly 2 drives link assembly 4.When the center of the second articulated shaft 46
It is dead-centre position when on the line at 45 center of the first articulated shaft and 47 center of third articulated shaft.If Fig. 3 is energy storage lever group
Part 2 pushes the starting stage of link assembly 4.When energy storage lever assembly 2 continues that the link assembly 4 is driven to act and into extremely
Point position, sees Fig. 4, pressing surface 211 is still contacted with second articulated shaft 46 at this time, i.e., described pressing surface 211 is still
To the second articulated shaft 46 with power, which does not cross dead-centre position by the inertia of link assembly 4, so as to ensure that operation
The in-place closing of mechanism.Under the state of fig. 4, pressing surface 211 continues to press on the second articulated shaft 46, then the two separation, connecting rod
Component 4 stops after continuing movement under self inertia until being collided with braking roll 7, connects as a result of braking roll 7 as limitation
Bar assembly 4 continues the component of movement, relative to being limited in the prior art using itself part of link assembly 4 so that this practicality
Novel link assembly 4 will not be collided impact, so as to improve the stabilization of the reliability of work, particularly link assembly 4
Property.
See Fig. 3, breaker is in gate-dividing state, after main shaft 6 rotates at this time, contradicts and stops with the braking roll 7, has
The fin 61 of the main shaft 6 of body is contradicted with braking roll 7 and is stopped.Therefore, the braking roll 7 has position-limiting action for main shaft 6.
Preferably, the braking roll 7 is a circular shaft and the cooperation that is in contact with the second articulated shaft 46 of link assembly 4.Only
Moving axis 7 is in contact the service life for coordinating and improving part with the second articulated shaft 46, is hardly damaged.Certainly, if the braking roll 7
Be not in contact cooperation with the second articulated shaft 46, but braking roll 7 is engaged with first connecting rod 41 or second connecting rod 42 and can
With.
Claims (7)
1. a kind of push and pull system of circuit breaker operation mechanism, including a pair of side plates (1), the energy storage between a pair of side plates (1)
Spring assembly (3), energy storage lever assembly (2), link assembly (4), in the making process of operating mechanism, the energy-stored spring
Component (3) drives energy storage lever assembly (2) to rotate, and driving link assembly (4) is dynamic after the energy storage lever assembly (2) rotation
Make, it is characterised in that：One is further included to be mounted on side plate (1), and the braking roll (7) between a pair of side plates (1), it is described
Braking roll (7) independently of link assembly (4), when link assembly (4) feed motion in place after by the conflict with braking roll (7) and
It is maintained at "on" position.
A kind of 2. push and pull system of circuit breaker operation mechanism according to claim 1, it is characterised in that the operation machine
Structure further includes the main shaft (6) of rotation setting；The link assembly (4) including first connecting rod (41), second connecting rod (42), turn
Bar (43), separating brake lever (44) are changed, one end of the first connecting rod (41) passes through on the first articulated shaft (45) and main shaft (6)
Fin (61) is hinged, and the other end of the first connecting rod (41) passes through one end of the second articulated shaft (46) and second connecting rod (42)
Hinged, the other end of the second connecting rod (42) passes through hinged, the described separating brake of third articulated shaft (47) and selector bar (43)
Between lever (44) is rotatably arranged on a pair of side plates (1) by separating brake lever rotation axis (441), the selector bar (43) rotation
Setting and with separating brake lever (44) snap fit.
A kind of 3. push and pull system of circuit breaker operation mechanism according to claim 2, it is characterised in that the braking roll
(7) it is a circular shaft and the cooperation that is in contact with the second articulated shaft (46) of link assembly (4).
A kind of 4. push and pull system of circuit breaker operation mechanism according to claim 2, it is characterised in that the braking roll
(7) it is a circular shaft and the cooperation that is in contact with the first connecting rod (41) of link assembly (4) or second connecting rod (42).
A kind of 5. push and pull system of circuit breaker operation mechanism according to claim 2, it is characterised in that the energy storage thick stick
Bar assembly (2) includes a pair of of lever piece (21), and a pair of of lever piece (21) is arranged at intervals, has on a pair of of lever piece (21)
Be useful for link assembly (4) cooperation pressing surface (211), the pressing surface (211) for push the second articulated shaft (46),
When the center of the second articulated shaft (46) is located on line of the first articulated shaft (45) center with third articulated shaft (47) center, institute
The pressing surface (211) stated is with the second articulated shaft (46) in contact condition.
6. the push and pull system of a kind of circuit breaker operation mechanism according to claim 2, it is characterised in that in operating mechanism point
Lock in place after, the main shaft (6) and braking roll (7) are collided and are stopped operating.
7. the push and pull system of a kind of circuit breaker operation mechanism according to claim 2, it is characterised in that in operating mechanism point
Lock in place after, the fin (61) of the main shaft (6) is collided with braking roll (7) and is stopped operating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721612405.6U CN207474399U (en) | 2017-11-28 | 2017-11-28 | A kind of push and pull system of circuit breaker operation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721612405.6U CN207474399U (en) | 2017-11-28 | 2017-11-28 | A kind of push and pull system of circuit breaker operation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207474399U true CN207474399U (en) | 2018-06-08 |
Family
ID=62258942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721612405.6U Active CN207474399U (en) | 2017-11-28 | 2017-11-28 | A kind of push and pull system of circuit breaker operation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207474399U (en) |
-
2017
- 2017-11-28 CN CN201721612405.6U patent/CN207474399U/en active Active
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