CN207441625U - A kind of energy storage lever of circuit breaker operation mechanism - Google Patents
A kind of energy storage lever of circuit breaker operation mechanism Download PDFInfo
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- CN207441625U CN207441625U CN201721612696.9U CN201721612696U CN207441625U CN 207441625 U CN207441625 U CN 207441625U CN 201721612696 U CN201721612696 U CN 201721612696U CN 207441625 U CN207441625 U CN 207441625U
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- energy storage
- lever
- axle sleeve
- pair
- circuit breaker
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Abstract
A kind of energy storage lever of circuit breaker operation mechanism, circuit breaker operation mechanism includes a pair of side plates and energy storage component, and energy storage component includes energy storage lever, and energy storage lever includes a pair of spaced lever piece, energy storage lever rotation axis is provided between a pair of side plates, it is characterised in that：The axle sleeve of concentricity when energy storage lever further includes one for ensureing that a pair of of lever piece rotates, axle sleeve pass through the default lever piece rotation hole of a pair of of lever on piece and are fixed with a pair of of lever piece, and energy storage lever rotation axis is threaded through in axle sleeve.The rotation precision of energy storage lever can be improved, and reduces friction, effectively extends the service life of circuit breaker operation mechanism.
Description
Technical field
The utility model belongs to low voltage electrical apparatus technology field, and in particular to a kind of energy storage lever of circuit breaker operation mechanism.
Background technology
With the continuous rapid development of breaker industry, market competition is also more and more fierce, improves the reliability of breaker
It is the important means for enhancing enterprise competitiveness.An important set of the energy storage lever of operating mechanism as circuit breaker operation mechanism
Into part, main function be compressed energy-storage spring complete operating mechanism energy storage, and when operating mechanism release can when drive link
The combined floodgate of operating mechanism is realized in action.Therefore the reliability of operating mechanism energy storage lever, the stabilization for ensureing its action how to be improved
Property, frictional dissipation when reducing its work have become particularly important.
Such as the energy storage lever that Fig. 1 is existing circuit breaker operation mechanism, operating mechanism includes a pair of spaced side plate
1, it rotates between the side plate 1 and is provided with energy storage lever 21, energy storage lever 21 includes a pair of of lever piece 211, in lever piece 211
Both sides are fixed with a pair of pivot 219, and a pair of pivot 219 is concentric, after this is mounted on side plate 1 pivot 219, the storage
The rotation of energy lever 21 is center of rotation to pivot 219 with this.Such setting so that the center of rotation as energy storage lever 21
Pivot 219 be not it is integral, in practice it is difficult to ensure that a pair of pivot 219 it is concentric.Energy storage lever 21 is caused to rotate
Excessive friction is generated in the process, it is larger with the mismatch error of other component, the abrasion of part is increased, reduces the longevity of component
Life, is restricted the service life of whole operation mechanism.
In view of the foregoing, it is necessary to which the mounting structure of the energy storage lever of existing circuit breaker operation mechanism is subject to reasonably
It improves.For this purpose, the applicant has made actively effectively to explore, technical solution described below is formd finally.
The content of the invention
The purpose of this utility model is to provide a kind of energy storage levers of circuit breaker operation mechanism, can improve energy storage lever
Rotation precision, reduce frictional force, and extend the service life of circuit breaker operation mechanism.
The purpose of this utility model is such to what is reached, a kind of energy storage lever of circuit breaker operation mechanism, breaker behaviour
Making mechanism includes a pair of side plates and energy storage component, and energy storage component includes energy storage lever, and the energy storage lever includes a pair of be spaced
The lever piece of setting is provided with energy storage lever rotation axis between described a pair of side plates, and the energy storage lever has further included one
The axle sleeve of concentricity during for ensureing that a pair of of lever piece rotates, the axle sleeve pass through the default lever piece of a pair of of lever on piece to turn
It moves hole and is fixed with a pair of of lever piece, the energy storage lever rotation axis is threaded through in axle sleeve.
In a specific embodiment of the utility model, one is respectively arranged on the inside of the both ends of sleeve length direction
For reducing the cooperation axle sleeve of rotation friction between axle sleeve and energy storage lever rotation axis, the outside of the cooperation axle sleeve and axis
The inner wall contact of set, and the inside of axle sleeve is coordinated to be contacted with the outer wall of energy storage lever rotation axis.
In another specific embodiment of the utility model, the circuit breaker operation mechanism further includes connection rod set
Part, cam pack and energy storage component, energy storage component further include energy-stored spring component, and energy storage lever further includes fixing axle, spring is matched somebody with somebody
Sympodium and cam engagement roller, multiple fixing axles are located between a pair of of lever piece, and the interval for ensureing lever piece is fixed, described
Spring fitted shaft be used for energy-stored spring component against cooperation, the cam engagement roller be used for cam pack against with
It closes.
In another specific embodiment of the utility model, the axle sleeve is in hollow cylindrical shape, length side
Concave first installation step is respectively equipped on the outer ring at both ends and is respectively equipped on the inner ring at length direction both ends concave
Second installation step, wherein installation of first installation step for axle sleeve and a pair of of lever piece, and the second installation step be used for
Coordinate the cooperation of axle sleeve.
The utility model so that in a specific embodiment, one end of described cooperation axle sleeve is by described second
Installation step /V, and the other end is by adding the restriction protrusion /V on energy storage lever rotation axis.
In the utility model more and in a specific embodiment, the fitted shaft puts on setting oil storage hole.
In the utility model again and in a specific embodiment, the step height of second installation step is less than
Coordinate the wall thickness of axle sleeve.
The utility model is due to the above structure, having the advantage that：The rotation precision of energy storage lever can be improved,
And reduce friction, effectively extend the service life of circuit breaker operation mechanism.
Description of the drawings
Fig. 1 is the energy storage lever schematic diagram in existing circuit breaker operation mechanism.
Fig. 2 is that energy storage lever is located at the schematic diagram in circuit breaker operation mechanism in the utility model.
Fig. 3 is the structure diagram of cam pack described in the utility model.
Fig. 4 is the structure diagram of energy-stored spring component described in the utility model.
Fig. 5 is the structure diagram of energy storage lever described in the utility model.
Fig. 6 is the scheme of installation of spring pedestal described in the utility model.
Fig. 7 is the structure diagram of spring pedestal described in the utility model.
Fig. 8 is the structure diagram of axle sleeve described in the utility model.
Fig. 9 is the structure diagram of cooperation axle sleeve described in the utility model.
Figure 10 is the scheme of installation of energy storage lever described in the utility model.
In figure：1. side plate, 11. side plate through-holes, 111. screens protrusions, 12. energy storage lever rotation axis, 121. restriction protrusions；
2. energy storage component, 21. energy storage levers, 211. lever pieces, 2112. lever piece rotation holes, 213. fixing axles, 214. springs coordinate
Axis, 215. cam engagement rollers, 216. axle sleeves, 2161. first installation steps, 2162. second installation steps, 219. pivots, 22.
Energy-stored spring component, 221. springs, chassis, 2221. upper limit seats, 22211. semicircle cavitys, 2222. first are led on 222. springs
Chassis, 2231. lower limit seats, 22311. limit protrusions, 2232. second are oriented under axis, 22221. projecting shafts, 223. springs
Axis, 224. nuts, 23. spring pedestals, 231. spring pedestal bottom plates, 2311. second card holes, 2312. installation mounting holes, 2313.
Installation base, 2315. first card holes, 232. bottom plate flange, 233. abutment faces；3. link assembly；4. cam pack, 41. first
Cam, 42. second cams, 43. shaft holes, 44. hook axis；5. coordinate axle sleeve, 51. oil storage holes；6. limit shaft sleeve.
Specific embodiment
Applicant will below be described in detail specific embodiment of the present utility model with reference to attached drawing, but applicant couple
The description of embodiment is not the limitation to technical solution, any to be changed in the form rather than substance all according to the utility model design
The scope of protection of the utility model should be considered as.
Such as Fig. 2 to Fig. 6, the utility model is related to a kind of energy storage lever of circuit breaker operation mechanism, the operating mechanisms
Including a pair of side plates 1, described a pair of side plates 1 is arranged at intervals, i.e., the spacing that a pair of side plates 1 keeps certain is arranged at intervals, one
To being equipped with the internal part of circuit breaker operation mechanism between side plate 1.
Specifically, energy storage component 2 is provided between a pair of side plates 1, energy storage component 2 is for storing energy, when energy is released
It is used for promoting link assembly 3, link assembly 3 that can carry out conjunction transfer with movable contact system after receiving the driving of energy storage component 2 when putting
Make.It also being rotated between a pair of side plates 1 and is equipped with cam pack 4, the cam pack 4 is used for controlling the movement of energy storage component 2,
When cam pack 4 is not locked, energy storage component 2 is with regard to that can release energy, and when cam pack 4 locks, energy storage component 2 is just not
It can move, also can not just release energy that link assembly 3 is driven to act.
Fig. 3 is related to the cam pack 4 of the utility model, and the cam pack 4 includes a pair of cams group, each cam
Group includes the first cam 41 and the second cam 42, and first cam 41 is one with cam bit jaggy described second
Cam 42 is similarly a notched cam bit.First cam 41 is arranged at intervals with the second cam 42, in the first cam 41 and
It is fixed with fitted shaft between two cams 42, fitted shaft is multiple and be arranged between the first cam 41 and the second cam 42, when the
Fitted shaft ensure that the interval setting of the two after one cam 41 and the second cam 42 are arranged at intervals.It offers and turns on cam pack 4
Axis hole 43, shaft hole 43 are laminated by the first cam 41 with the consistent holes opened up on the second cam 42.In the first cam
41 and second are additionally provided with hook axis 44 between cam 42, and hook axis 44 is used for the lock to cam set with the closing lever of operating mechanism
It is fixed.
Energy members of the energy storage component 2 as circuit breaker operation mechanism can shift to an earlier date storage energy, and need to release energy
When, which is unlocked by valve module, energy storage component 2 releases energy and the link assembly 3 with pneumatic operating mechanism acts,
And link assembly 3 can drive the contact system of breaker to act after moving, to realize that closing transfer makees.
The energy storage component 2 includes energy storage lever 21, energy-stored spring component 22 and spring pedestal 23.The energy storage thick stick
Bar 21 is a lever piece, is rotatably arranged between both side plate 1.It can automatically rotate compared with both side plate 1.It is described
Energy-stored spring component 22 for compression spring structure, complete the storage of energy by the compression or release of energy-stored spring component 22 and release
It puts.The spring pedestal 23 is a component being fixed on side plate 1, and the support of one end is provided for energy-stored spring component 22,
So as to the other end of energy-stored spring component 22 energy storage lever 21 could be promoted to rotate.
Fig. 4 is 22 schematic diagram of energy-stored spring component.Energy-stored spring component 22 includes chassis 222 and bullet on spring 221, spring
Chassis 223 under spring.The spring 221 is cylindroid helical-coil compression spring, and the spring 221 can be multiple, to improve bullet
Spring stores energy.The spring 221 can also be spring of different sizes, and little spring is placed in the inner ring of big spring.Spring
Upper chassis 222 includes 2221 and first guiding axis 2222 of upper limit seat.First guiding axis 2222 is perpendicular to upper limit seat 2221
Interior mating surface is protruding.Have on upper limit seat 2221 with spring fitted shaft 214 against the semicircle cavity 22211 of cooperation,
So as to when upper limit seat 2221 and spring fitted shaft 214 against after, can relatively rotate.In the external part of the first guiding axis 2222
22221 be thread segment.Chassis 223 includes 2231 and second guiding axis 2232 of lower limit seat under spring.Second guiding axis 2232 hangs down
It is directly protruding in the interior mating surface of lower limit seat 2231.Lower limit seat 2231 is equipped with restriction protrusion 22311.The /V
Protrusion 22311 is clamped for lower limit seat 2231 with spring pedestal 23.Described 221 one end of spring is supported with chassis on spring 222
Lean on, and under the other end and spring of spring 221 chassis 223 against.When energy-stored spring component 22 is mounted to module, by spring 221
Both ends and upper limit seat 2221 and lower limit seat 2231 against.And the first guiding axis 2222 is inserted on the second guiding axis 2232
By hole, tightened again with nut 224 after passing through.
Fig. 5 is 21 schematic diagram of energy storage lever.Specifically, energy storage lever 21 includes a pair of of lever piece 211, fixing axle 213, bullet
Spring fitted shaft 214, cam engagement roller 215 and axle sleeve 216.A pair of of lever piece 211 is arranged at intervals, and fixing axle 213 is set
Between a pair of of lever piece 211, the lever piece 211 is in herringbone, is pacified on wherein one end of two divergent ends of the same side
Equipped with being equipped with cam engagement roller 215 in spring fitted shaft 214, the wherein other end, the spring fitted shaft 214 be used for
Energy-stored spring component 22 coordinates, and the cam engagement roller 215 with cam pack 4 for coordinating, and lever piece 211 is in herringbone
Lever piece rotation hole 2112 is offered on the head of shape, an axle sleeve 216 passes through the lever piece rotation hole 2112.Both side plate 1
Between energy storage lever rotation axis 12 is installed（See Figure 10）, axle sleeve 216 is sleeved on energy storage lever rotation axis 12, so as to complete storage
The rotation of energy lever 21 is set.
Such as Fig. 6, Fig. 7, the spring pedestal 23 is preferably a sheet metal bent part.It includes spring pedestal bottom plate 231
With the bottom plate flange 232 positioned at 231 length direction both sides of spring pedestal bottom plate.It is further opened with pacifying on spring pedestal bottom plate 231
Mounting hole 2312 is filled, the installation mounting hole 2312 is used for the installation of nut 224.231 length direction of spring pedestal bottom plate
Both ends are equipped with installation base 2313.The first card hole 2315 and the second card hole 2311 are additionally provided on spring pedestal bottom plate 231.Specifically
, after in the side plate through-hole 11 that installation base 2313 is insinuated on side plate 1, the screens protrusion in the side plate through-hole 11
111 are insinuated into inside the first card hole 2315, so as to fixed spring pedestal 23.The screens protrusion 111 is preferably from side plate
The edge of through hole 11 chassis 222 on spring extends.So as to which energy-stored spring component 22 can guarantee the pressure of spring pedestal 23
Screens protrusion 111 is stated to be insinuated into always inside the first card hole 2315.In second card hole 2311 and lower limit seat 2231
Restriction protrusion 22311 is caught in cooperation, so as to realize the positioning of lower limit seat 2231.When the energy-stored spring component 22 is one
When a, second card hole 2311 is at least one, is preferably two, also, the restriction protrusion 22311 and second is blocked
2311 quantity of hole is identical.When the energy-stored spring component 22 is two, second card hole 2,311 at least two is excellent
Elect four as.The spring pedestal 23 further include with both side plate 1 against abutment face 233.
Such as the schematic diagram that Fig. 8 is axle sleeve 216.The axle sleeve 216 is hollow cylindrical shape.In 216 length direction of axle sleeve
Both ends outer ring be equipped with concave first installation step 2161, and on the both ends inner ring of 216 length direction of axle sleeve be equipped with it is recessed
The second sunken installation step 2162.First installation step 2161 is used for the installation of axle sleeve 216 and a pair of of lever piece 211.
The inside of i.e. a pair of of lever piece 211 is attached on the step surface of the first installation step 2161, while the first installation step 2161 is stretched
Outlet employs an axle sleeve through the lever piece rotation hole 2112 on lever piece 211, such setting compared with the prior art
216 limit the center of rotation of a pair of of lever piece 211, ensure that the concentricity of rotation, reduce and are worn caused by error, are carried
The service life of Gao Liao mechanisms.
Such as the schematic diagram that Fig. 9 is cooperation axle sleeve 5, cooperation axle sleeve 5 is mounted on the inside of axle sleeve 216, specific to coordinate axle sleeve 5
In the second installation step 2162 of axle sleeve 216, so as to limit the position of cooperation axle sleeve 5 by the second installation step 2162
Put, prevent that two cooperation axle sleeves 5 are close to each other, due to cooperation axle sleeve 5 be in in the friction of energy storage lever rotation axis 12, preferably
, oil storage hole 51 is set on cooperation axle sleeve 5, and such setting can give cooperation 5 prolonged lubricating oil of axle sleeve.Second installation simultaneously
The step height of step 2162 should be less than the wall thickness of cooperation axle sleeve 5.
See Figure 10, energy storage lever rotation axis 12 is provided in a pair of side plates 1, specific energy storage lever rotation axis 12 is fixed
Between both side plate 1.And axle sleeve 216 is mounted on a pair of of lever piece 211 of energy storage lever 21, specific axle sleeve 216 and a pair
2112 secure fit of lever piece rotation hole, the secure fit between the axle sleeve 216 and lever piece rotation hole 2112 can be
Interference fit or riveting, welding cooperation, cooperation axle sleeve 5 are located at the inside at 216 length direction both ends of axle sleeve, and its one end passes through second
Installation step 2162 limits, and the other end is by adding 121 /V of restriction protrusion on energy storage lever rotation axis 12 or by adding
Limit shaft sleeve 6 carry out /V, i.e., the other end of cooperation axle sleeve 5 is limited by restriction protrusion 121 or limit shaft sleeve 6.Certainly, two
The other end of cooperation axle sleeve 5 is all limited also possible by limit shaft sleeve 6.
The installation process of energy storage lever 21 is as follows：By the energy storage lever 21 that installation is complete in its 216 length direction two of axle sleeve
Cooperation axle sleeve 5 is filled in the inside at end respectively, and it is straight that the energy storage lever 21 filled in after coordinating axle sleeve 5 is packed into energy storage lever rotation axis 12
To with the restriction protrusion 121 on energy storage lever rotation axis 12 against then being inserted in limit shaft sleeve 6, abut against the another of energy storage lever 21
One end, then energy storage lever rotation axis 12 is installed between both side plate 1.
In the above-described embodiments, since axle sleeve 216 and a pair of of lever piece 211 limit one by the first installation step 2161
To the relative distance between lever piece 211.But the specific bit that a pair of of lever piece 211 is directly sleeved on to axle sleeve 216 can also be used
It puts, and the fixation by welding to realize position.The setting of the first installation step 2161 can be saved under such scheme.
Claims (7)
1. a kind of energy storage lever of circuit breaker operation mechanism, circuit breaker operation mechanism includes a pair of side plates (1) and energy storage component
(2), energy storage component (2) includes energy storage lever (21), and the energy storage lever (21) includes a pair of spaced lever piece
(211), it is provided with energy storage lever rotation axis (12) between described a pair of side plates (1), it is characterised in that：The energy storage lever
(21) axle sleeve (216) of concentricity, the axle sleeve (216) when further including one for ensureing that a pair of of lever piece (211) rotates
Default lever piece rotation hole (2112) and fixed with a pair of of lever piece (211) on through a pair of of lever piece (211) is described
Energy storage lever rotation axis (12) is threaded through in axle sleeve (216).
2. the energy storage lever of a kind of circuit breaker operation mechanism according to claim 1, which is characterized in that in axle sleeve (216)
One is respectively arranged on the inside of length direction both ends to rub for reducing to rotate between axle sleeve (216) and energy storage lever rotation axis (12)
The cooperation axle sleeve (5) of power is wiped, the outside of the cooperation axle sleeve (5) is contacted with the inner wall of axle sleeve (216), and coordinates axle sleeve (5)
Inside contacted with the outer wall of energy storage lever rotation axis (12).
A kind of 3. energy storage lever of circuit breaker operation mechanism according to claim 1 or 2, it is characterised in that the open circuit
Device operating mechanism further includes link assembly (3), cam pack (4) and energy storage component (2), and energy storage component (2) further includes energy storage bullet
Spring component (22), energy storage lever (21) further include fixing axle (213), spring fitted shaft (214) and cam engagement roller (215),
Multiple fixing axles (213) are located between a pair of of lever piece (211), and the interval for ensureing lever piece (211) is fixed, the bullet
Spring fitted shaft (214) is used for energy-stored spring component (22) against cooperation, and the cam engagement roller (215) is used for and cam
Component (4) is against cooperation.
A kind of 4. energy storage lever of circuit breaker operation mechanism according to claim 2, it is characterised in that the axle sleeve
(216) in hollow cylindrical shape, be respectively equipped with concave first installation step (2161) on the outer ring at length direction both ends and
Concave second installation step (2162) is respectively equipped on the inner ring at length direction both ends, wherein the first installation step (2161) is used
In axle sleeve (216) and the installation of a pair of of lever piece (211), and the second installation step (2162) is used for coordinating matching somebody with somebody for axle sleeve (5)
It closes.
A kind of 5. energy storage lever of circuit breaker operation mechanism according to claim 4, it is characterised in that the fitted shaft
The one end of (5) is covered by described the second installation step (2162) /V, and the other end is by adding in energy storage lever rotation axis (12)
On restriction protrusion (121) /V.
A kind of 6. energy storage lever of circuit breaker operation mechanism according to claim 2, it is characterised in that the fitted shaft
It covers and oil storage hole (51) is set on (5).
A kind of 7. energy storage lever of circuit breaker operation mechanism according to claim 4, it is characterised in that second peace
The step height for filling step (2162) is less than the wall thickness of cooperation axle sleeve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721612696.9U CN207441625U (en) | 2017-11-28 | 2017-11-28 | A kind of energy storage lever of circuit breaker operation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721612696.9U CN207441625U (en) | 2017-11-28 | 2017-11-28 | A kind of energy storage lever of circuit breaker operation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207441625U true CN207441625U (en) | 2018-06-01 |
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ID=62284884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721612696.9U Active CN207441625U (en) | 2017-11-28 | 2017-11-28 | A kind of energy storage lever of circuit breaker operation mechanism |
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| CN (1) | CN207441625U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111341606A (en) * | 2018-12-18 | 2020-06-26 | 天津平高智能电气有限公司 | Circuit breaker and operating mechanism thereof |
-
2017
- 2017-11-28 CN CN201721612696.9U patent/CN207441625U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111341606A (en) * | 2018-12-18 | 2020-06-26 | 天津平高智能电气有限公司 | Circuit breaker and operating mechanism thereof |
| CN111341606B (en) * | 2018-12-18 | 2021-12-31 | 天津平高智能电气有限公司 | Circuit breaker and operating mechanism thereof |
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