CN207664010U - A kind of anti-rebound structure of breaker rotating axis - Google Patents
A kind of anti-rebound structure of breaker rotating axis Download PDFInfo
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- CN207664010U CN207664010U CN201721891753.1U CN201721891753U CN207664010U CN 207664010 U CN207664010 U CN 207664010U CN 201721891753 U CN201721891753 U CN 201721891753U CN 207664010 U CN207664010 U CN 207664010U
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- resistant sheet
- ballistic resistant
- shaft
- breaker
- anchor ear
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Abstract
A kind of anti-rebound structure of breaker rotating axis, belongs to low voltage electrical apparatus technology field.The breaker includes breaker body shell, shaft and anchor ear, and the breaker body shell includes pedestal, and the shaft is installed to by anchor ear on the pedestal of breaker body shell；The contact system action in breaker body shell is driven after shaft rotation；It is characterized in that：It is fixed with swing piece in the shaft, swinging axle is installed on the swinging end for swinging piece；Rotation is provided with ballistic resistant sheet on the anchor ear, and after shaft separating brake moves in place, the rebound of shaft is blocked by ballistic resistant sheet and being clasped for swinging axle.Simple in structure, easy for installation, high strength, service life is long, the safety that can ensure that the interrupting performance of breaker and subsequently use.
Description
Technical field
The utility model belongs to low voltage electrical apparatus technology field, and in particular to a kind of anti-rebound structure of breaker rotating axis.
Background technology
Low-voltage frame circuit breaker is a kind of low voltage electrical equipment component that capacity is larger, is mainly used for industrial power train
In system, it can be ensured that the connection of circuit and cut-off under nominal load, and abnormality occur in circuit（Such as overload, short circuit, owe
Voltage etc.）Lower automatic shutoff circuit, and load can be made to be completely isolated from power by detaching dynamic and static contact.
The operating mechanism of low-voltage frame circuit breaker is connect by shaft with moving contact, and operating mechanism drives during on/off switch
Turn shaft rotation is dynamic, to drive moving contact to swing, makes that contact or discrete state is presented between dynamic and static contact, realizes breaker to electricity
It the connection on road and cut-offs.
During short circuit breaking, due to electrodynamic effect, moving contact movement velocity quickly, has accumulated very big breaker
Kinetic energy and momentum.Existing product be by operating mechanism inside metalwork collide and carry out separating brake limit, due to metal
Part collision time is extremely short, easily causes excessively high stress and leads to the deformation of member or damage, causes retard motion, reduces breaker
The performance of operating mechanism.Since operating mechanism inner space is narrow, the volume of internal position limiting structure is limited, causes to lead to
The intensity of normal position limiting structure is poor, and the plastic deformation of position limiting structure is easily caused when breaker progress high current disjunction, from
And limit performance is weakened or loses, cause moving contact to rebound after reaching open position, to again close to static contact, make,
Electric clearance is insufficient and punctured and caused electric arc again between static contact, and breaker disjunction is caused to fail.In addition, since limit is tied
Structure intensity is poor, when breaker easily caused after multiple disjunction the deformation or damage of position limiting structure, to reduction or loses
Performance is limited, moving contact is directly resulted in and generates collision with pedestal, pedestal fragmentation is caused when serious, cannot ensure the disjunction of breaker
Performance and the safety subsequently used.
Invention content
The task of the utility model is to provide for a kind of simple in structure, easy for installation, the open circuit of high strength, service life length
The anti-rebound structure of device shaft, can be effectively prevented the rebound of breaker rotating axis, it is ensured that the interrupting performance of breaker and follow-up
The safety used.
What the task of the utility model was performed by, a kind of anti-rebound structure of breaker rotating axis, the open circuit
Device includes breaker body shell, shaft and anchor ear, and the breaker body shell includes pedestal, and the shaft is by embracing
Hoop is installed on the pedestal of breaker body shell；Touching in the breaker body shell is driven after the shaft rotation
Head system acts；It is characterized in that：It is fixed with swing piece in the shaft, swing is installed on the swinging end for swinging piece
Axis；Rotation is provided with ballistic resistant sheet on the anchor ear, after shaft separating brake moves in place, by the buckle of ballistic resistant sheet and swinging axle
Coordinate and block the rebound of shaft.
In a specific embodiment of the utility model, the anchor ear is equipped with installation axle and abutment end, described
Installation axle be used for the installation of ballistic resistant sheet, and abutment end is used to limit the swing angle of the ballistic resistant sheet.
In another specific embodiment of the utility model, the ballistic resistant sheet is equipped with ballistic resistant sheet catching groove, shellproof
Piece positive stop end and ballistic resistant sheet mounting hole, when swinging axle is after separating brake acts in place, the ballistic resistant sheet catching groove is by the swing
Axis clasps and prevents the backswing of swinging axle, blocks the rebound of shaft；After ballistic resistant sheet is replied, the ballistic resistant sheet positive stop end
It is inconsistent with the abutment end of anchor ear and define the swing angle of ballistic resistant sheet；The ballistic resistant sheet mounting hole be used for on anchor ear
Installation axle cooperation installs and ballistic resistant sheet is rotatably arranged on anchor ear.
In another specific embodiment of the utility model, ballistic resistant sheet boss is additionally provided in the ballistic resistant sheet；Institute
The breaker stated further includes replying part, and the reply part is a torsional spring, is set in the installation axle, the reply part
One end is resisted against on the ballistic resistant sheet boss of ballistic resistant sheet, the other end abuts on the edge of anchor ear.
In another specific embodiment of the utility model, set in the one side edge of the notch of the ballistic resistant sheet catching groove
There is collision edge, when shaft is in separating brake movement, swinging axle contacts with collision edge and the ballistic resistant sheet is driven to swing.
The utility model is equipped with swinging axle due to being fixed with swing piece in shaft on the swinging end for swinging piece；Together
When on anchor ear rotation be provided with ballistic resistant sheet, when the movement of shaft separating brake in place after, by being clasped for ballistic resistant sheet and swinging axle
And the rebound of shaft is effectively blocked, and it is simple in structure, easy for installation, high strength, service life is long, can ensure that point of breaker
Disconnected performance and the safety subsequently used.
Description of the drawings
Fig. 1 be the utility model is related to breaker portion structural schematic diagram.
Fig. 2 be the utility model is related to breaker portion Structure explosion diagram.
Fig. 3 be the utility model is related to shaft schematic diagram.
Fig. 4 be the utility model is related to anti-rebound structure side schematic diagram.
Fig. 5 be the utility model is related to anti-rebound structure other side schematic diagram.
Fig. 6 be the utility model is related to anti-rebound schematic diagram.
Fig. 7 be the utility model is related to anti-rebound on piece ballistic resistant sheet boss schematic diagram.
In figure：1. breaker body shell, 11. pedestals, 12. bottom plates；2. shaft, 21. fins, 22. swing piece, 221. pendulum
Moving axis；3. anchor ear, 31. shaft mounting holes, 32. installation axles, 33. abutment ends；4. ballistic resistant sheet, 41. ballistic resistant sheet catching grooves, 411. collisions
Edge, 42. ballistic resistant sheet boss, 421. riveting ends, 43. ballistic resistant sheet positive stop ends, 44. ballistic resistant sheet mounting holes；5. replying part.
Specific implementation mode
Applicant will below be described in detail specific embodiment of the present utility model in conjunction with attached drawing, but applicant is to reality
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 is all answered
When being considered as the scope of protection of the utility model.
~Fig. 7 is please referred to Fig.1, the utility model is related to a kind of anti-rebound structure of breaker rotating axis, the breakers
Including breaker body shell 1, shaft 2 and anchor ear 3, the shell 1 includes pedestal 11 and bottom plate 12,11 He of pedestal
Bottom plate 12 mutually splices.The shaft 2 is installed to by anchor ear 3 on the pedestal 11 on breaker body shell 1.In shell 1
Be internally provided with contact system.Band movable contact system acts after shaft 2 rotates.Specifically, fin 21 is fixed in shaft 2,
After the shaft 2 rotates, the fin 21 follows rotation, and is put with the moving contact in movable contact system by fin 21
It is dynamic.
The anchor ear 3 is usually made of metal material, preferably metallic plate.It is equipped on anchor ear 3 and is used for 2 both ends of shaft
The shaft mounting hole 31 of rotational installation.To be installed on anchor ear 3 when the shaft 2, and anchor ear 3 is installed on pedestal 11
Afterwards, the shaft 2 completes installation.The core of the utility model is, ballistic resistant sheet 4 is equipped on the anchor ear 3,
The ballistic resistant sheet 4 is stopped after rotateing in place for 2 separating brake of countershaft, prevents the generation of rebound.It is described in order to adapt to
The installation of ballistic resistant sheet 4 is additionally provided with installation axle 32 and abutment end 33 on anchor ear 3.The installation axle 32 is used for the peace of ballistic resistant sheet 4
Dress, and abutment end 33 is used to limit the swing angle of the ballistic resistant sheet 4, to adapt to requirements of one's work.
It is specifically shown in Fig. 3, fin 21 is fixed in the shaft 2 and swings piece 22, the fin 21 and swing piece
22 axis body with shaft 2 is fixed, and the techniques such as generally use welding realize described be fixedly connected.Preferably, the pendulum
Movable plate 22 is a pair, and is spaced setting, and swinging axle 221, the i.e. pendulum are provided between a pair of swinging end for swinging piece 22
One end setting of moving axis 221 is swung one on piece 22, and the other end of swinging axle 221 is arranged on another swing piece 22.It is such
Setting so that the swinging axle 221 follows the swing piece 22 to swing, and ballistic resistant sheet 4 is for the resistance to swinging axle 221
Gear, that is, blocking the rotation of shaft 2.More specifically, the swinging axle 221 is axle cap, and swings piece in a pair
Offer the through hole less than axle cap on 22, clamp spring is used in one end of the separate axle cap of swinging axle 221 after penetrating above-mentioned through hole
Clamping prevents swinging axle 221 to be detached from the swing piece 22.
It is specifically shown in Fig. 6, the ballistic resistant sheet 4 is metallic plate, and it is convex that ballistic resistant sheet catching groove 41, ballistic resistant sheet are equipped in ballistic resistant sheet 4
Platform 42, ballistic resistant sheet positive stop end 43, ballistic resistant sheet mounting hole 44.The ballistic resistant sheet catching groove 41 is single port slot, is used for and the pendulum
Moving axis 221 matches, i.e., when swinging axle 221 is after separating brake acts in place, the ballistic resistant sheet catching groove 41 is by the swinging axle
221 clasp and prevent the backswing of swinging axle 221, block the rebound of shaft 2.Ballistic resistant sheet positive stop end 43 is shellproof for limiting
The return motion of piece 4, i.e., it is inconsistent with the ballistic resistant sheet positive stop end 43 after the ballistic resistant sheet 4 is replied, to ballistic resistant sheet
4 initial position is able to according to design requirement to stablize on preset position.The ballistic resistant sheet mounting hole 44 is anti-
Shrapnel 4, which rotates, to be arranged to the mounting hole on anchor ear 3, i.e., the ballistic resistant sheet 4 is arrived by the rotation setting of ballistic resistant sheet mounting hole 44 and embraced
On hoop 3, specifically, the installation axle 32 on anchor ear 3 penetrates the ballistic resistant sheet mounting hole 44 and is blocked with clamp spring.
See Fig. 4,5, in order to improve the restoring force of the ballistic resistant sheet 4, the breaker further includes replying part 5, described
It is that the ballistic resistant sheet 4 provides restoring force to reply part 5.Specifically, the reply part 5 is a torsional spring, it is set in described
In installation axle 32, one end of the reply part 5 is resisted against on the ballistic resistant sheet boss 42 of ballistic resistant sheet 4 and the other end abuts to anchor ear 3
It is that ballistic resistant sheet 4 provides restoring force by reply part 5 on edge.
The one side edge of the notch of the ballistic resistant sheet catching groove 41 is equipped with collision along 411, and the collision is along 411 and swing
Axis 221 coordinates, and the cooperation refers to that, when shaft 2 is in separating brake movement, swinging axle 221 is contacted along 411 with the collision and driven
The ballistic resistant sheet 4 is swung, if be provided with reply part 5, driven the ballistic resistant sheet 4 that reply part 5 is overcome to swing, is put
It is dynamic in place after, the ballistic resistant sheet catching groove 41 in ballistic resistant sheet 4 clasps the swinging axle 221 and blocks the rebound of shaft 2.
It is 42 schematic diagram of ballistic resistant sheet boss such as Fig. 7, the ballistic resistant sheet boss 42 is single shaft, has riveting end 421,
The riveting end 421 is fixed after being encased in ballistic resistant sheet 4 by riveting.
Claims (5)
1. a kind of anti-rebound structure of breaker rotating axis, the breaker include breaker body shell (1), shaft (2) and
Anchor ear (3), the breaker body shell (1) include pedestal (11), and the shaft (2) is installed to base by anchor ear (3)
On seat (11)；The contact system in the breaker body shell (1) is driven to act after shaft (2) rotation；It is special
Sign is：It is fixed in the shaft (2) and swings piece (22), swinging axle is installed on the swinging end for swinging piece (22)
(221)；Rotation is provided with ballistic resistant sheet (4) on the anchor ear (3), after shaft (2) separating brake moves in place, by ballistic resistant sheet
(4) with the rebound for being clasped and blocking shaft (2) of swinging axle (221).
2. a kind of anti-rebound structure of breaker rotating axis according to claim 1, it is characterised in that on the anchor ear (3)
Equipped with installation axle (32) and abutment end (33), the installation axle (32) is used for the installation of ballistic resistant sheet (4), and abutment end (33) is used
In the swing angle for limiting the ballistic resistant sheet (4).
3. a kind of anti-rebound structure of breaker rotating axis according to claim 2, it is characterised in that the ballistic resistant sheet (4)
It is equipped with ballistic resistant sheet catching groove (41), ballistic resistant sheet positive stop end (43) and ballistic resistant sheet mounting hole (44), when swinging axle (221) is dynamic in separating brake
After making in place, the swinging axle (221) is clasped and is prevented the reversed pendulum of swinging axle (221) by the ballistic resistant sheet catching groove (41)
It is dynamic, block the rebound of shaft (2)；After ballistic resistant sheet (4) is replied, the ballistic resistant sheet positive stop end (43) and anchor ear (3) against
Hold (33) swing angle that is inconsistent and defining ballistic resistant sheet (4)；The ballistic resistant sheet mounting hole (44) is used for and anchor ear (3)
Installation axle (32) cooperation installation and ballistic resistant sheet (4) is rotatably arranged on anchor ear (3).
4. a kind of anti-rebound structure of breaker rotating axis according to claim 3, it is characterised in that the ballistic resistant sheet (4)
On be additionally provided with ballistic resistant sheet boss (42)；The breaker further includes replying part (5), and the reply part (5) is a torsional spring,
It is set in the installation axle (32), one end of the reply part (5) is resisted against on the ballistic resistant sheet boss (42) of ballistic resistant sheet (4),
The other end abuts on the edge of anchor ear (3).
5. a kind of anti-rebound structure of breaker rotating axis according to claim 3, it is characterised in that the ballistic resistant sheet catching groove
(41) one side edge of notch is equipped with collision along (411), and when shaft (2) is in separating brake movement, swinging axle (221) is touched with this
It hits and contacts along (411) and the ballistic resistant sheet (4) is driven to swing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721891753.1U CN207664010U (en) | 2017-12-29 | 2017-12-29 | A kind of anti-rebound structure of breaker rotating axis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721891753.1U CN207664010U (en) | 2017-12-29 | 2017-12-29 | A kind of anti-rebound structure of breaker rotating axis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207664010U true CN207664010U (en) | 2018-07-27 |
Family
ID=62944326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721891753.1U Active CN207664010U (en) | 2017-12-29 | 2017-12-29 | A kind of anti-rebound structure of breaker rotating axis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207664010U (en) |
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2017
- 2017-12-29 CN CN201721891753.1U patent/CN207664010U/en active Active
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