CN106158530B - The two level latching device of the operating mechanism of breaker - Google Patents
The two level latching device of the operating mechanism of breaker Download PDFInfo
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- CN106158530B CN106158530B CN201510210615.1A CN201510210615A CN106158530B CN 106158530 B CN106158530 B CN 106158530B CN 201510210615 A CN201510210615 A CN 201510210615A CN 106158530 B CN106158530 B CN 106158530B
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Abstract
Present invention is disclosed a kind of two level latching device of the operating mechanism of breaker, operating mechanism includes：Tripping component, left plate component, right plate component, latch components, axle assembly, lever assembly and spindle assemblies.Tripping component, latch components and lever assembly are mounted between left plate component and right plate component, and axle assembly and spindle assemblies through left plate component and right plate component and extend to except left plate component and right plate component.Tripping component, latch components, axle assembly, lever assembly and spindle assemblies linkage.Tripping component includes tripping, and the second end of tripping has lock face.Latch components include the sheet metal component to rotate around the axis and the bearing on sheet metal component.Bearing is contacted with lock face, and latch components limit tripping component.Axle assembly includes semiaxis, and sheet metal component is contacted with semiaxis, and axle assembly limits latch components.Tripping component, latch components and axle assembly constitute two level latching device.
Description
Technical field
The present invention relates to Low Voltage Electrical Apparatus, more specifically to the latching device in the operating mechanism of device for switching.
Background technology
Breaker is that the main device for switching to play a protective role, breaker provide overload for circuit in low-voltage network
And short-circuit protection.Moulded case circuit breaker is one such, and large capacity breaker of plastic casing refers to rated current reach or
Breaker more than 800A, the breaker are usually three poles and quaternary structure, i.e. the breaker has three groups or four groups of contacts,
Corresponding three-phase or four circuitry phases.In order to meet selective protection requirement certain in electric system, breaker must have centainly
Tolerance in short-term.Therefore, the transmission component of the contact assembly of large capacity breaker of plastic casing, especially multipole must have higher
Intensity and rigidity, meet the homogeneity of the parameters such as contact pressure, the excess of stroke of multipole.On the other hand, it is contemplated that cost and application
The operating mechanism overwhelming majority in market, large capacity breaker of plastic casing is manual operation pattern, in the requirement for meeting manual operation power
Under, the output power of operating mechanism is often limited, therefore manual operating mechanism of breaker often requires that output power is as high as possible,
It can ensure the homogeneity of multipole contact parameter again.
The latching device of operating mechanism is used to operating mechanism being locked in closing position or open position, and is needing
Operating mechanism is loosened in time when dropout and is threaded off, therefore the stability of latching device and response speed are for operating mechanism
There is important role for performance.For manual-operating mechanism, three pole latching devices are generally used, three pole mechanisms are passed through
Lever amplification effect reduce the requirement for manual operation power, but three pole latching devices are due to being the interlocking of three poles, anti-
Answer speed slower so that the whole trip speed of operating mechanism is slower.
Invention content
The present invention is directed to propose a kind of two level latching device required with smaller manual operation power.
An embodiment according to the present invention proposes a kind of two level latching device of the operating mechanism of breaker, wherein operating
Mechanism includes：Tripping component, left plate component, right plate component, latch components, axle assembly, lever assembly and spindle assemblies.
Tripping component, latch components and lever assembly are mounted between left plate component and right plate component, axle assembly and main shaft group
Part is through left plate component and right plate component and extends to except left plate component and right plate component.Tripping component, lock
Buckle assembly, axle assembly, lever assembly and spindle assemblies linkage.Tripping component includes tripping, and the second end of tripping has lock
Face；Latch components include the sheet metal component to rotate around the axis and the bearing on sheet metal component；The bearing is contacted with lock face,
Latch components limit tripping component；Axle assembly includes semiaxis, and the sheet metal component is contacted with semiaxis, and axle assembly limits lock group
Part；The tripping component, latch components and axle assembly constitute two level latching device.
In one embodiment, tripping component includes tripping, upper connecting rod and lower link, and upper connecting rod is riveted in tripping, under
Connecting rod is riveted in upper connecting rod.The second end of tripping is in hook-type, and the outside of hook-type forms the second inclined-plane, which is lock
Face.
In one embodiment, the second inclined-plane includes arc surface.
In one embodiment, latch components include sheet metal component, bearing, latch components spring and shaft；Sheet metal component is installed
In shaft, for latch components spring pocket in shaft, latch components spring applies spring force to sheet metal component, and bearing is mounted on metal plate
On part, bearing and the second contact of incline plane, latch components limit tripping component.
In one embodiment, axle assembly includes semiaxis, and the both ends of semiaxis are separately mounted to left plate component and right side
On board group part, sheet metal component is contacted with axle assembly.
In one embodiment, when the second inclined-plane of tripping is withstood and locked by bearing, there are the arm of force, latch components springs
Generating torque using the arm of force drives sheet metal component to rotate around the axis so that the end of sheet metal component compresses semiaxis.
In one embodiment, during detaining again, bearing compresses the second inclined-plane and second inclined-plane in tripping
Adjacent surface, and bearing and the second inclined-plane and adjacent surface are tangent.
The two level latching device of the operating mechanism of the breaker of the present invention latches for two level, has compared with the lock of three poles
Faster response speed, bearing can effectively reduce the tangential friction force of lock position, advantageously reduce the requirement of manual operation power.
In addition, the risk of appearance " fast knot " can be reduced using arc surface in lock position.
Description of the drawings
The above and other feature of the present invention, property and advantage will pass through description with reference to the accompanying drawings and examples
And become apparent, identical reference numeral always shows identical feature in the accompanying drawings, wherein：
Fig. 1 discloses the structure chart of the operating mechanism of the breaker of two level latching device using the present invention.
Fig. 2 a and Fig. 2 b disclose the structure chart of tripping component in the operating mechanism of breaker shown in FIG. 1.
Fig. 3 a disclose the structure chart of left plate component and latch components in the operating mechanism of breaker shown in FIG. 1.
Fig. 3 b disclose left plate component and the structure chart of latch components from another angle.
Fig. 4 a disclose the structure chart of the first embodiment of latch components.
Fig. 4 b disclose the structure chart of the second embodiment of latch components.
Fig. 5 discloses the structure chart of right plate component in the operating mechanism of breaker shown in FIG. 1.
Fig. 6 a and Fig. 6 b disclose the structure chart of lever assembly in the operating mechanism of breaker shown in FIG. 1.
Fig. 7 a and Fig. 7 b disclose the structure chart of spindle assemblies in the operating mechanism of breaker shown in FIG. 1.
Fig. 8 discloses the operating mechanism of breaker shown in FIG. 1 and the assembly structure figure of breaker.
Fig. 9 discloses the operating mechanism of breaker shown in FIG. 1 and the assembly structure figure of breaker.
Figure 10 a and Figure 10 b disclose the process that operating mechanism shown in FIG. 1 drives moving contact to close a floodgate.
Figure 11 a and Figure 11 b disclose the process that operating mechanism shown in FIG. 1 drives moving contact to carry out separating brake.
Figure 12 a and Figure 12 b disclose the operation principle of two level latching device.
Specific implementation mode
Refering to what is shown in Fig. 1, Fig. 1 discloses the structure of the operating mechanism of the breaker of two level latching device using the present invention
Figure.Operating mechanism 107 includes tripping component 100, left plate component 101, latch components 102, axle assembly 103, right side board group
Part 104, lever assembly 105 and spindle assemblies 106.
Fig. 2 a and Fig. 2 b disclose the structure chart of tripping component.With reference to shown in figure 2a and Fig. 2 b, tripping component 100 includes jumping
Button 204.There is the first end of tripping 204 first hole 207, shaft 208 to be riveted in the first hole 207.The middle part of tripping 204 has
Pin shaft hole, axis pin 203 pass through pin shaft hole, upper connecting rod 201 are riveted in tripping 204.There is limit close to the position of pin shaft hole
Position hole, position-limitting pin 205 are riveted in limit hole.Due to being the state after having riveted position-limitting pin 205 shown in Fig. 2 a,
Limit hole is blocked, the position where position, that is, position-limitting pin 205 of limit hole.The second end of tripping 204 is in hook-type, hook-type
Inside forms the first inclined-plane 256, the outside of hook-type forms the second inclined-plane 253.It should be noted that, although 253 are known as second
Inclined-plane, but " inclined-plane " is actually arc-shaped, or including at least the arc surface of a part.The upper end of upper connecting rod 201 rivets
In tripping 204, there is pin shaft hole, axis pin 203 to pass through pin shaft hole, lower link 202 is riveted on upper company at the middle part of upper connecting rod 201
On bar 201.The lower end of upper connecting rod 201 has connecting hole 236.As shown in Figure 2 b, the upper end of lower link 202 has connecting hole 283,
Lower link 202 is riveted in upper connecting rod 201 by pivot pin across connecting hole 283, and the lower end of lower link 202 has connecting hole 282.
Lateral plate component includes left plate component 101 and right plate component 104.Left plate component 101 and right plate component 104
With symmetrical structure.Refering to what is shown in Fig. 1, tripping component 100, latch components 102, axle assembly 103,105 and of lever assembly
Spindle assemblies 106 are respectively positioned between left plate component 101 and right plate component 104.Also, latch components 102, axle assembly
103, the both ends of lever assembly 105 and spindle assemblies 106 are separately mounted on left plate component 101 and right plate component 104.Figure
3a and Fig. 3 b disclose the structure of left plate component, and wherein Fig. 3 a and Fig. 3 b disclose left plate component from different angles respectively
Structure.As shown, left plate component 101 includes left plate 209.Left plate 209 is formed in bottom by the position of two close end
Bending hole 210, bending hole 210 include the extension board vertical with side plate 209, and the hole being opened on extension board.In bending hole
Riveting has nut 211 on 210.Bending hole 210 and nut 211 are used to operating mechanism 107 being installed to breaker.Left plate
209 have mounting hole 212 at middle part close to the position of bottom, and for mounting hole 212 for installing shaft 213, shaft 213 is lever group
The shaft of part 105,213 rotation around the shaft of lever assembly 105.As shown in Figure 3b, shaft 213 is a short axle, and shaft 213 is in court
The end of 209 inside of side plate has end cap to the left.Left plate 209 has mounting hole 215, lock in second end close to the position at top
The shaft 217 of buckle assembly 102 is mounted in mounting hole 215, to which latch components 102 is installed on left plate component 101.It is left
Side plate 209 has half axis hole 226 in second end close to the position of bottom, and half axis hole 226 is for assembling axle assembly 103.Left side
Plate 209 has a semicircular notch 299 in the position close to the bottom of first end, and the notch 299 is for accommodating spindle assemblies
106, there are a mounting hole 290, mounting hole 290 to be used to fix for the screw of spindle assemblies 106 in the top of notch 299.Left plate
209 have tripping mounting hole 280 in the position close to the top of first end, and tripping mounting hole 280 is for accommodating tripping component 100
Shaft 208.
Fig. 5 discloses the structure chart of right plate component.Right plate component 104 has symmetrical knot with left plate component 101
Structure, right plate 309 have and 209 symmetrical bending hole 310 of left plate, nut 311, the mounting hole for installing shaft 213
312, the mounting hole 315 of the shaft 217 for installing latch components 102, half axis hole 227 for assembling axle assembly 103, use
In accommodate spindle assemblies 106 semicircular notch 399, for for spindle assemblies 106 the fixed mounting hole 291 of screw,
In the tripping mounting hole 281 for the shaft 208 for accommodating tripping component 100.
Latch components 102 include sheet metal component 219, locating shaft 220, bearing 221, latch components spring 222 and shaft 217.
With reference to shown in figure 3a and Fig. 3 b, Primary Reference Fig. 3 b, it should be noted that in order to more clearly express the peace of latch components 102
Assembling structure, Fig. 3 b disclose lateral plate component 101 and latch components 102 from Fig. 3 a using two different angles, and Fig. 3 b are more clear
Disclose to Chu the mounting structure of latch components.Fig. 4 a disclose sheet metal component 219 in latch components, locating shaft 220 and bearing 221
Structure.Sheet metal component 219 includes the consistent metal plate piece of two plate shapes, and two panels metal plate piece is arranged at certain intervals, two locating shafts
220, which fix two metal plate pieces, forms sheet metal component 219.Bearing 221 is clipped between two metal plate pieces, and the both ends of bearing 221 are pacified respectively
Mounted in a metal plate on piece.Bearing 221 is located between two locating shafts 220.The upper end of sheet metal component 219 has axis hole, by this
Axis hole, sheet metal component 219 are mounted in shaft 217, and sheet metal component 219 being capable of 217 rotation around the shaft.It is also cased in shaft 217
Latch components spring 222, latch components spring 222 are equally clipped between two metal plate pieces.Bearing 221 and tripping component 100
Second inclined-plane 253 coordinates so that latch components 102 can limit tripping component 100.Fig. 4 b disclose latch components
The structure chart of another embodiment, in the structure shown in Fig. 4 b, sheet metal component 219A includes the inconsistent metal plate piece of two plate shapes,
Wherein a piece of metal plate on piece has bending foot, and another metal plate on piece does not bend foot, and two panels metal plate on piece equally has altogether
The hole that shaft 217 passes through.Two panels metal plate piece is arranged at certain intervals, and is connected by a sheet part, does not use positioning
Axis.In other words, sheet metal component 219A is a single component, including sheet part and the two panels metal plate that is connected by sheet part
Piece.Bearing 221A is clipped between two metal plate pieces.
Refering to what is shown in Fig. 1, axle assembly 103 includes semiaxis 223.The both ends of semiaxis 223 are separately mounted to left plate component
In half axis hole 227 on the side plate 209 of half axis hole 226 and right plate component 104 on 101 side plate 209.Axle assembly
There are two failure receiving element, Fisrt fault receiving element 224 and the second failure receiving elements 225 for tool on 103.Fisrt fault receiving element
224 and second failure receiving element 225 be respectively positioned between left plate component 101 and right plate component 104, wherein Fisrt fault receive
Part 224 is arranged close to the side plate interior sides of left plate component 101, side plate of the second failure receiving element 225 close to right plate component 104
Inside is arranged.The two level lock of operating mechanism is collectively formed in axle assembly 103 and latch components 102.
Fig. 6 a and Fig. 6 b disclose the structure chart of lever assembly.Lever assembly 105 includes metal plate bending part 228, metal plate folding
228 bending of comer pieces forms roof and two side walls, and roof and two side walls form the structure of a semi-surrounding.Metal plate bending part 228
Roof on rivet installation axle 229, installation axle 229 be used for installation operation handle 230.Metal plate bending part 228 is in roof and two
The intersection of side wall is respectively opened there are one mounting groove 233.Spring installation axle 232 is housed between two mounting grooves 233.Lever group
The upper end of part spring 231 is connected in spring installation axle 232.In the illustrated embodiment, there are two lever assembly springs 231 simultaneously
Row setting.Lever assembly spring 231 is surrounded by metal plate bending part 228.The lower end of lever assembly spring 231 has connecting hole
234, connecting hole 234 is aligned with the connecting hole 236 of 201 lower end of upper connecting rod.Connecting shaft 235 passes through connecting hole 234 and connecting hole
236 so that lever assembly spring 231 is connect with the upper connecting rod 201 of tripping component 100, to lever assembly 105 and tripping component
101 linkages.First end of the metal plate bending part 228 in the bottom of two side walls forms the extension 258 of shallow hook-type, the shallow hook-type
Extension 258 has the moulding of similar " boots ".The extension 258 of the shallow hook-type plays the progress of the rotation to lever assembly 105
The effect of limit.Metal plate bending part 228 is formed with semicircular notch in the bottom of two side walls close to the position of second end
241, the semicircular notch 241 is for accommodating shaft 213.213 rotation around the shaft of lever assembly 105.
Fig. 7 a and Fig. 7 b disclose the structure chart of spindle assemblies.Spindle assemblies 106 include main shaft 237.Have on main shaft 237
There are multiple cantilevers 238, in one embodiment, multiple cantilevers 238 are welded on main shaft 237.Correspondence is more respectively for multiple cantilevers 238
The moving contact component of a pole corresponds to polyphase circuit in other words.There is connecting hole on each cantilever 238.Also have on main shaft 237
There is a pair of of main shaft locating part 239 and 240.A pair of main shaft locating part 239 and 240 is arranged in one of multiple cantilevers 238
Both sides, also, this is symmetrical relative to the cantilever 238 to position of the main shaft locating part 239 and 240 on main shaft 237.Main shaft limits
Position part 239 and 240 corresponds to wherein one-phase circuit.The end of main shaft locating part 239 and 240 has the limited block 259 of bending, should
The limited block 259 of bending can coordinate with the extension 258 of the shallow hook-type of " boots " moulding on metal plate bending part 228, utilize main shaft
Component 106 limits the slewing area of lever assembly 105.Fig. 7 b disclose the installation fitting of spindle assemblies.Installation is matched
Part includes two parts：First part 242 and second part 243.First part 242 and second part 243 are an entirety.The
A part 242 forms a circular hole, and the diameter in the hole is matched with main shaft 237, and main shaft 237 is passed through from the hole.Second
Divide 243 tops for being located at first part 242, there is screw hole on second part 243.In left plate component 101 and right plate component
One installation fitting is installed respectively on 104.Hole in first part 242 is aligned respectively at semicircular notch 299 or 399,
For accommodating main shaft 237.Screw hole on second part 243 is respectively aligned to mounting hole 290 or mounting hole 291, and screw passes through
Installation fitting is co-mounted to together with main shaft on left plate component and right plate component by mounting hole and screw hole.
In conjunction with Fig. 1, Fig. 2 a, Fig. 2 b, Fig. 3 a, Fig. 3 b, Fig. 4 a, Fig. 4 b, Fig. 5, Fig. 6 a, Fig. 6 b, Fig. 7 a and Fig. 7 b, tripping group
Part 100, left plate component 101, latch components 102, axle assembly 103, right plate component 104, lever assembly 105 and main shaft group
Part 106 is assembled into operating mechanism 107 in such a way.The both ends of the shaft 208 of tripping component 100 are separately mounted to left plate
The tripping mounting hole 280 (being located on left plate 209) of component 101 and the tripping mounting hole 281 of right plate component 104 (are located at the right side
On side plate 309).The semicircular notch 241 of the both sides sidewall bottom of the metal plate bending part 228 of lever assembly 105 is set up respectively
In the shaft 213 of left plate component 101 and right plate component 104.As elucidated before, shaft 213 is short axle, two shafts
213 are separately mounted on left plate 209 and right plate 309, and the end of shaft 213 towards inside has end cap, the diameter of end cap
More than shaft, end cap carries out lateral limit to the side wall of metal plate bending part 228.Lever assembly spring in lever assembly 105
The connecting hole 234 of 231 bottoms is aligned with the connecting hole 236 of 201 lower end of upper connecting rod, and connecting shaft 235 passes through connecting hole 234 and connection
Lever assembly spring 231 is connect by hole 236 with upper connecting rod 201.The main shaft 237 of spindle assemblies 106 passes through two installation fittings
Hole in first part 242 so that main shaft 237 is connected on two installation fittings.Main shaft 237 is placed to left plate component
101 semicircular indentations 299 (being located on left plate 209) and the semicircular indentations 399 of right plate component 104 (are located at right plate
On 309) in, the screw hole on the second part 243 of two installation fittings is respectively aligned to the mounting hole 290 on left plate component 101
Mounting hole 291 (being located on right plate 309) on (being located on left plate 209) and right plate component 104.Screw passes through two peaces
Screw hole on the second part 243 of assembly parts and mounting hole 290,291, left plate component and right side are fixed on by installation fitting
On board group part, the assembly of spindle assemblies 106 and left plate component 101 and right plate component 104 is also completed.Spindle assemblies 106
One of cantilever 238 is connect with the lower link 202 of tripping component 100, the connecting hole on cantilever 238 and 202 lower end of lower link
Connecting hole 282 (axis pin 246 discloses in fig. 11) is connected by axis pin 246, formation link mechanism, spindle assemblies 106 and tripping
Component 100 realizes connection.For the polyphase circuit with multi-polar structure, there are multiple cantilevers 238 on spindle assemblies 106,
Each cantilever 238 corresponds to a pole, in the structure of a certain pole installed therein of operating mechanism 107.The cantilever 238 of the corresponding pole and behaviour
Make the lower link connection in the tripping component of mechanism.For left plate component 101 and right plate component 104, in addition to by
It is also solid with another in the other end relative to latch components 102 except the shaft 217 of latch components 102 is fixed
Dead axle 247.Fixing axle 247 again passes through the hole on left plate component and right plate component and is fixed by screw, fixing axle
247 and shaft 217 left plate component 101 and right plate component 104 are fixed together together.
With reference to figure 8 and Fig. 9, the assembly structure figure of operating mechanism 107 and breaker 108 is disclosed.Fig. 8 and Fig. 9 is removal
Structure chart after the head cover of breaker.With reference to shown in figure 8 and Fig. 9, breaker 108 includes pedestal 109 and middle cover 159.It is illustrating
Embodiment in, breaker 108 is a multipole circuit breaker, has the multipole moving contact 110 of corresponding polyphase circuit.Operating mechanism
On the moving contact of 107 poles installed therein.On the left plate component 101 and right plate component 104 of screw 249 and operating mechanism
Nut 211 coordinate, left plate component 101 and right plate component 104 are fixed on middle cover 159, to by operating mechanism 107
It is installed on the wherein moving contact of a pole.Multipole moving contact 110 is connected respectively to the correspondence of spindle assemblies 106 by axis pin 250
Cantilever 238 on, the moving contact 110 of each pole is connected to corresponding cantilever 238.Axis pin 250 is fixed on cantilever 238
In connecting hole.With reference to figure 7a, have there are two connecting hole on each cantilever 238, wherein the connecting hole of top is used for and tripping group
Part connects, and the connecting hole of lower section with moving contact for connecting.Operation handle 230 is mounted on lever assembly 105, more specifically
It says, operation handle 230 is mounted in installation axle 229.
Figure 10 a and Figure 10 b disclose the process that operating mechanism above-mentioned drives moving contact to close a floodgate.Figure 10 a mainly take off
Show that the making process of operating mechanism, Figure 10 b disclose the process that operating mechanism drives switch on of moving contact.When being closed a floodgate,
The tail end of tripping 204 in tripping component 100, the outside of hook-type form the second inclined-plane 253 and are withstood by bearing 221 and by bearing
221 are limited.The sheet metal component 219 of latch components 102 is limited by the semiaxis 223 of axle assembly 103.Lever assembly 105 is in people
213 counterclockwise movement around the shaft under force effect, for example, Manual-pushing operation handle 230 drives lever assembly to rotate.Scheming
In embodiment shown in 10a and Figure 10 b, it is illustrated that combined floodgate direction as indicated with an arrow, be so that lever assembly rotates counterclockwise.?
After pushing lever assembly 105 to rotate counterclockwise, lever assembly spring 231 drives upper connecting rod 201 to be rotated for shaft with axis pin 203,
Upper connecting rod 201 is rotated clockwise around axis pin 203.Upper connecting rod 201 drives lower link 202 to move.Lower link 202 passes through axis pin 246
The cantilever 238 (cantilever 238 is connected in tripping component 100) of spindle assemblies 106 is driven, cantilever 238 is further driven to main shaft 237
Axle center 106A around main shaft is rotated, and main shaft 237 is rotated clockwise around axle center 106A.The rotation of main shaft 237 drives other
Cantilever 238 links, and each cantilever 238 drives each moving contact 110 to complete to close a floodgate by axis pin 250.Each moving contact 110 surrounds
Respective center of rotation 255 rotates counterclockwise.Fig. 2 a are returned to, the extreme position that upper connecting rod 201 rotates clockwise is limited pin
205 are limited, and when upper connecting rod 201, which is turned to, to be contacted with position-limitting pin 205, upper connecting rod 201 no longer rotates.Then, it has closed a floodgate
Cheng Hou, upper connecting rod 201 are limited by position-limitting pin 205.
Figure 11 a and Figure 11 b disclose the process that operating mechanism above-mentioned drives moving contact to carry out separating brake.Figure 11 a mainly take off
Show that the separating brake process of operating mechanism, Figure 11 b disclose the process that operating mechanism drives moving contact separating brake.When carrying out separating brake,
Lever assembly 105 213 clockwise movement around the shaft under manpower effect, for example, Manual-pushing operation handle 230 drives lever
Component rotates.In the embodiment shown in Figure 11 a and Figure 11 b, it is illustrated that separating brake direction as indicated with an arrow, be so that lever assembly
It rotates clockwise.After pushing lever assembly 105 to rotate clockwise, lever assembly spring 231 drives upper connecting rod 201 with axis pin
203 rotate for shaft, and upper connecting rod 201 is rotated counterclockwise around axis pin 203.Upper connecting rod 201 drives lower link 202 to move.Lower link
202 by axis pin 246 drive spindle assemblies 106 cantilever 238 (cantilever 238 is connect with tripping component 100), cantilever 238 into
One step drives main shaft 237 to be rotated around the axle center 106A of main shaft, and main shaft 237 is rotated counterclockwise around axle center 106A.Main shaft 237
Rotation drives other cantilevers 238 to link, and each cantilever 238 drives each moving contact 110 to complete separating brake by axis pin 250.Respectively
A moving contact 110 is rotated clockwise around respective center of rotation 255.In conjunction with the pole rotated counterclockwise with reference to figure 7a, main shaft 237
Extreme position is determined by main shaft locating part 239,240 and fixing axle 247.With reference to figure 11a and Figure 11 b, when main shaft locating part 239,
240 with fixing axle 247 contact when, spindle unit no longer rotates.
As elucidated before, tripping component 100, latch components 102 and axle assembly 103 constitute two level latching device.Figure
12a and Figure 12 b disclose the operation principle of two level latching device.As shown, when the second inclined-plane 253 of tripping 204 is by bearing
221 when withstanding and locking, there are arm of force L5, latch components spring 222 using arm of force L5 generate torque drive sheet metal component 219 around
Shaft 217 rotates counterclockwise, and the end 219A of sheet metal component 219 compresses semiaxis 223.The latch components spring being sleeved in shaft 217
222 generate torque using arm of force L5.When being detained (reset) again, to ensure that bearing can be reliably into the second inclined-plane
It 253 and locks therewith, it is necessary to which, so that there are overtravels for tripping 204, during detaining again, bearing 221 can compress in tripping 204
Face 204A and the second inclined-plane 253, and it is tangent with face 204A and the second inclined-plane 253.It is previously noted that the second inclined-plane 253 is
One arc surface or arc surface including at least a part, therefore, arc-shaped face 253 can ensure that arm of force L5 keeps basic
It is constant, to prevent the generation of self-locking (also referred to as " fast knot ") phenomenon.
The two level latching device of the operating mechanism of the breaker of the present invention latches for two level, has compared with the lock of three poles
Faster response speed, bearing can effectively reduce the tangential friction force of lock position, advantageously reduce the requirement of manual operation power.
In addition, the risk of appearance " fast knot " can be reduced using arc surface in lock position.
Above-described embodiment, which is available to, to be familiar with person in the art to realize or use the present invention, and is familiar with this field
Personnel can make various modifications or variation, thus this to above-described embodiment without departing from the present invention in the case of the inventive idea
The protection domain of invention is not limited by above-described embodiment, and should meet inventive features that claims are mentioned most
On a large scale.
Claims (6)
1. a kind of two level latching device of the operating mechanism of breaker, wherein the operating mechanism includes：Tripping component, left plate
Component, right plate component, latch components, axle assembly, lever assembly and spindle assemblies；
Tripping component, latch components and lever assembly are mounted between left plate component and right plate component, axle assembly and master
Shaft assembly is through left plate component and right plate component and extends to except left plate component and right plate component；
Tripping component, latch components, axle assembly, lever assembly and spindle assemblies linkage；
Wherein, tripping component includes tripping, and the second end of tripping has lock face；Latch components include the metal plate to rotate around the axis
Part and the bearing on sheet metal component；The bearing is contacted with lock face, and latch components limit tripping component；Axle assembly packet
Semiaxis is included, the sheet metal component is contacted with semiaxis, and axle assembly limits latch components；The tripping component, latch components and semiaxis
Component constitutes two level latching device；
The axle assembly includes semiaxis, and the both ends of semiaxis are separately mounted on left plate component and right plate component, the metal plate
Golden part is contacted with axle assembly.
2. the two level latching device of the operating mechanism of breaker as described in claim 1, which is characterized in that the tripping component
Including tripping, upper connecting rod and lower link, upper connecting rod is riveted in tripping, and lower link is riveted in upper connecting rod；
The second end of tripping is in hook-type, and the outside of hook-type forms the second inclined-plane, which is lock face.
3. the two level latching device of the operating mechanism of breaker as claimed in claim 2, which is characterized in that second inclined-plane
Including arc surface.
4. the two level latching device of the operating mechanism of breaker as claimed in claim 2, which is characterized in that the latch components
Including sheet metal component, bearing, latch components spring and shaft；
Sheet metal component is mounted in shaft, and for latch components spring pocket in shaft, latch components spring applies spring force to sheet metal component,
Bearing is mounted on sheet metal component, and bearing and second contact of incline plane, latch components limit tripping component.
5. the two level latching device of the operating mechanism of breaker as claimed in claim 4, which is characterized in that the second of tripping is tiltedly
When face is withstood and locked by bearing, there are the arm of force, latch components spring generates torque using the arm of force and drives sheet metal component around the shaft
Rotation so that the end of sheet metal component compresses semiaxis.
6. the two level latching device of the operating mechanism of breaker as claimed in claim 5, which is characterized in that in the process detained again
In, bearing compresses the adjacent surface on the second inclined-plane and the second inclined-plane in tripping, and bearing and the second inclined-plane and adjacent surface
It is tangent.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510210615.1A CN106158530B (en) | 2015-04-28 | 2015-04-28 | The two level latching device of the operating mechanism of breaker |
| PCT/CN2016/079970 WO2016173464A1 (en) | 2015-04-28 | 2016-04-22 | Secondary latch mechanism for operating mechanism of circuit breaker |
| RU2017140334A RU2696014C2 (en) | 2015-04-28 | 2016-04-22 | Two-stage mechanical interlocking mechanism for automatic circuit breaker actuator |
| US15/569,166 US10199196B2 (en) | 2015-04-28 | 2016-04-22 | Two-level latch mechanism for operation mechanism of circuit breaker |
| EP16785895.0A EP3291276B1 (en) | 2015-04-28 | 2016-04-22 | Secondary latch mechanism for operating mechanism of circuit breaker |
Applications Claiming Priority (1)
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| CN201510210615.1A CN106158530B (en) | 2015-04-28 | 2015-04-28 | The two level latching device of the operating mechanism of breaker |
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| CN106158530A CN106158530A (en) | 2016-11-23 |
| CN106158530B true CN106158530B (en) | 2018-11-13 |
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| CN109801816A (en) * | 2017-11-16 | 2019-05-24 | 三信国际电器上海有限公司 | The processing method and breaker of a kind of operating mechanism, operating mechanism |
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| CN202405200U (en) * | 2011-12-29 | 2012-08-29 | 上海良信电器股份有限公司 | Breaker mechanism |
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| DE10320681B4 (en) * | 2003-04-30 | 2006-10-19 | Siemens Ag | Switch lock for latching a selector shaft and electrical switch with such a switch lock |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202405200U (en) * | 2011-12-29 | 2012-08-29 | 上海良信电器股份有限公司 | Breaker mechanism |
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