CN107706034A - A kind of heavy current disconnecting switches of high reliability - Google Patents
A kind of heavy current disconnecting switches of high reliability Download PDFInfo
- Publication number
- CN107706034A CN107706034A CN201710962620.7A CN201710962620A CN107706034A CN 107706034 A CN107706034 A CN 107706034A CN 201710962620 A CN201710962620 A CN 201710962620A CN 107706034 A CN107706034 A CN 107706034A
- Authority
- CN
- China
- Prior art keywords
- contact
- bolt
- contact knife
- bearing block
- bushing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/026—Movable parts and contacts mounted thereon
Landscapes
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
The present invention proposes a kind of heavy current disconnecting switches of high reliability, including contact, touch base, contact knife component, main shaft and rod assembly, touch base is provided with bearing block, bearing block is provided with support holes, rod assembly one end is connected with main shaft, the other end is connected with contact knife component, contact knife module back is arranged on bearing block through support holes by bolt, contact knife component is rotated centered on bolt, by realizing folding, the contact surface structure in the arc-shaped of contact and contact knife forward portion between the rotation of contact knife component, contact knife forward portion and contact.Bearing block is provided with only hook bolt, only bolt is locked in support holes by hook bolt through bearing block, passed through on contact knife component in the supporting hole of bolt and be provided with bushing, bushing is coated on outside bolt and interference fits between bushing and bolt, and back-moving spring is provided between the both sides contact knife of bearing block, compact-sized, the simple and convenient, dependable performance of installation.
Description
Technical field
The invention belongs to a kind of disconnecting switch, and in particular to a kind of heavy current disconnecting switches of high reliability.
Background technology
Present heavy current disconnecting switches are in the majority with guillotine type.Such as figure (1) and figure (2).
Electric current flows to contact knife component from contact and finally flows to touch base.Because electric current is larger, copper bar is thicker, is easily caused and copper bar
Being formed during overlap joint forces connection to cause contact deflection.And contact deflection is little by little, contact can be caused to be contacted with contact knife bad, can caused
Switch heating is even burnt.
Switch separating brake, combined floodgate are to promote main shaft rotation to drive rod assembly to rotate by operating mechanism, finally promote contact knife
Component is rotated to realize separating brake, close a floodgate.And the sliding block of rod assembly front end is straight with link insulator front end riveting thread head
Connect and be connected through a screw thread.Link insulator front end is riveted between screw thread head thread and sliding block internal thread has gap certainly.More
Screw thread can sustain damage or even slide tooth in secondary separating brake, making process.
Two contact knife rear portions of contact knife component are connected with touch base, be utilize through bolt pass through bearing saddle bore formed supporting
Point.Meanwhile there is compression spring to push contact knife component to two outsides in non-locking state open in bearing block both sides.Contact knife forward portion
And one positioning sleeve when closing a floodgate in the medium design through bolt.Also there is compression spring in set both sides, contact knife is in non-lock
Also it is pushed under tight state.Contact knife is all pushed in open position to closing position.I.e. contact knife component is with touching
There is gap between seat (head).Meanwhile there is gap between bearing block and the bolt that passes through.So, contact knife component can divide, close
It can be rocked during lock.Equally, contact knife supporting hole and also there is gap through bolt.Contact knife component is also resulted in divide, closing
Rocked during lock.Rock it is final will result in contact knife deflection formed during divide-shut brake, contact knife is with touching in making process
Easily contact knife is caused to rest on contact during head contact.Switch is caused to lock or can not close a floodgate in advance.
Contact knife component separating brake is only hauled after in place by rod assembly, because electric current substantially contact knife is made big, final contact knife
It is too heavy.After separating brake, contact knife is still separated downwards due to deadweight, damage switch.
The content of the invention
The present invention proposes a kind of heavy current disconnecting switches of high reliability regarding to the issue above, its compact-sized, installation
Simple and convenient, dependable performance.
Specific technical scheme is as follows：
A kind of heavy current disconnecting switches of high reliability, including contact, touch base, contact knife component, main shaft and rod assembly, touch
Seat is provided with bearing block, and bearing block is provided with support holes, and contact and touch base are oppositely arranged, main shaft between contact and touch base,
Rod assembly one end is connected with main shaft, the other end is connected with contact knife component, and contact knife module back is passed through by bolt
Support holes are arranged on bearing block, contact knife component is rotated centered on bolt, by the rotation of contact knife component, are touched
Knife assembly is anterior to realize folding, the contact surface structure in the arc-shaped of contact and contact knife forward portion between contact；
The bearing block is provided with only hook bolt, and only bolt is locked in support holes by hook bolt through bearing block
In, passed through on contact knife component and bushing is provided with the supporting hole of bolt, bushing is coated on outside bolt and bushing and supporting spiral shell
Interference fits between bolt, and back-moving spring is provided between bearing block and contact knife component both sides, back-moving spring cladding is arranged on bushing
Outside, the length of the bushing are more than the thickness of contact knife.
A kind of heavy current disconnecting switches of above-mentioned high reliability, wherein, the rod assembly includes link insulator, commutation
Pull bar and sliding block, commutation pull bar is radially fixed on main shaft, and link insulator is fixed on commutation pull bar by the way that bearing pin is rotatable
One end, thread head is riveted on the link insulator other end, thread head is fixed by nut check again after being threadedly coupled with sliding block, sliding
Block is fixed on contact knife component.
A kind of heavy current disconnecting switches of above-mentioned high reliability, wherein, the touch base is provided with caging bolt, with bearing block
Spacer pin is provided between connected contact knife, being cooperated between spacer pin and caging bolt, it is spacing to realize.
Beneficial effects of the present invention are：
(1) high-current switch electric current flows to contact knife component from contact and flows into touch base outflow, and it is easy that contact overlaps thicker copper bar
The contact surface of deflection, contact and contact knife uses arc-shaped structure, even if there is contact deflection, contact knife is that line connects with contact circular arc
Touch, still do not influence conduction.
(2) nut check is used after being threadedly coupled between link insulator front end riveting thread head and sliding block, eliminates pull bar riveting
The gap of screw thread between thread head and sliding block screwed hole is connect, is not in thread damage in switch point, combined floodgate.
(3) after switch debugging is good, increases an only hook bolt on bearing block, allow the bolt through bearing block to abut against axle
On bearing inner hole wall, it can not rotate, its gap is eliminated.Increase bushing, liner sleeve length in supporting hole of the contact knife through bolt
It is longer than contact knife thickness that interference fits are much used between bushing endoporus and bolt, add the stability of contact knife component.Also finally
Contact knife is withstood with back-moving spring.So, contact knife will not rock.
(4) contact knife component is overweight, props up spacer pin with caging bolt afterwards in place in separating brake, contact knife component will not fall.
Brief description of the drawings
Fig. 1 is existing heavy current disconnecting switches front view.
Fig. 2 is existing heavy current disconnecting switches side view.
Fig. 3 is the non-locking state partial front elevation view of present invention combined floodgate.
Fig. 4 is that combined floodgate retaining mechanism of the present invention does not lock structure graph.
Fig. 5 is "on" position side view of the present invention.
Fig. 6 is gate-dividing state side view of the present invention.
Fig. 7 is A portions enlarged drawing in Fig. 3.
Embodiment
To make technical scheme become apparent from clearly, the present invention is described further below in conjunction with the accompanying drawings,
Any scheme drawn to the technical characteristic progress equivalencing of technical solution of the present invention and conventional reasoning each falls within guarantor of the present invention
Protect scope.
Reference
Contact 1, touch base 2, contact knife component 3, main shaft 4, rod assembly 5, bearing block 6, support holes 7, supporting hole 8, supporting spiral shell
Bolt 9, only contact surface 10, hook bolt 11, bushing 12, back-moving spring 13, link insulator 14, commutation pull bar 15, sliding block 16, spacing
Bolt 17, spacer pin 18, thread head 19, nut 20.
A kind of heavy current disconnecting switches of high reliability as shown in the figure, including contact 1, touch base 2, contact knife component 3, main shaft 4
With rod assembly 5, touch base is provided with bearing block 6, and bearing block is provided with support holes 7, and contact and touch base are oppositely arranged, and main shaft is fixed
On base, main shaft is between contact and touch base, and rod assembly one end is connected with main shaft, the other end is connected with contact knife component
Connect, contact knife module back is arranged on bearing block through support holes by bolt 9, makes contact knife component using bolt in
The heart is rotated, by realizing folding between the rotation of contact knife component, contact knife forward portion and contact, contact with before contact knife component
10 structure in the arc-shaped of contact surface in portion；
The bearing block is provided with only hook bolt 11, and only bolt is locked and supported by hook bolt through bearing block
Kong Zhong, through being provided with bushing 12 in the supporting hole 8 of bolt on contact knife component, bushing be coated on outside bolt and bushing and
Interference fits between bolt, and back-moving spring 13 is provided between bearing block and contact knife component both sides, back-moving spring cladding is set
Put in bushing outer, the length of the bushing is more than the thickness of contact knife.
The rod assembly includes link insulator 14, commutation pull bar 15 and sliding block 16, and commutation pull bar is radially fixed in master
On axle, link insulator is fixed on commutation pull bar one end by the way that bearing pin is rotatable, and screw thread is riveted on the link insulator other end
First 19, thread head is locked by nut 20 again after being threadedly coupled with sliding block, and sliding block is fixed on contact knife component.
The touch base is provided with caging bolt 17, is provided with spacer pin 18 between the contact knife being connected with bearing block, spacer pin with
Being cooperated between caging bolt, it is spacing to realize.
Claims (5)
1. a kind of heavy current disconnecting switches of high reliability, it is characterized in that, including contact, touch base, contact knife component, main shaft and pull bar
Component, touch base are provided with bearing block, and bearing block is provided with support holes, and contact and touch base are oppositely arranged, and main shaft is located at contact and touched
Between seat, rod assembly one end is connected with main shaft, the other end is connected with contact knife component, and contact knife module back is by supporting spiral shell
Bolt is arranged on bearing block through support holes, contact knife component is rotated centered on bolt, passes through contact knife component
Rotate, folding, the contact surface structure in the arc-shaped of contact and contact knife forward portion are realized between contact knife forward portion and contact.
2. a kind of heavy current disconnecting switches of high reliability as claimed in claim 1, it is characterized in that, the bearing block is provided with
Only hook bolt, only hook bolt bolt is locked in support holes through bearing block, on contact knife component through bolt
Bushing is provided with supporting hole, bushing is coated on outside bolt and interference fits between bushing and bolt, and bearing block
Back-moving spring is provided between contact knife component both sides, back-moving spring cladding is arranged on bushing outer.
3. a kind of heavy current disconnecting switches of high reliability as claimed in claim 1, it is characterized in that, the length of the bushing is big
In the thickness of contact knife.
4. a kind of heavy current disconnecting switches of high reliability as claimed in claim 1, it is characterized in that, the rod assembly includes
Link insulator, commutation pull bar and sliding block, commutation pull bar is radially fixed on main shaft, and link insulator is rotatable by bearing pin
Commutation pull bar one end is fixed on, rivets thread head on the link insulator other end, thread head passes through again after being threadedly coupled with sliding block
Nut check is fixed, and sliding block is fixed on contact knife component.
5. a kind of heavy current disconnecting switches of high reliability as claimed in claim 1, it is characterized in that, the touch base is provided with limit
Position bolt, is provided with spacer pin between the contact knife being connected with bearing block, between spacer pin and caging bolt mutual cooperation realize spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710962620.7A CN107706034A (en) | 2017-10-17 | 2017-10-17 | A kind of heavy current disconnecting switches of high reliability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710962620.7A CN107706034A (en) | 2017-10-17 | 2017-10-17 | A kind of heavy current disconnecting switches of high reliability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107706034A true CN107706034A (en) | 2018-02-16 |
Family
ID=61183656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710962620.7A Pending CN107706034A (en) | 2017-10-17 | 2017-10-17 | A kind of heavy current disconnecting switches of high reliability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107706034A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200944367Y (en) * | 2006-09-18 | 2007-09-05 | 河南森源电气股份有限公司 | Contact knife stretching regulator of indoor high-voltage isolating switch |
| CN101308741A (en) * | 2008-06-27 | 2008-11-19 | 成都通力集团股份有限公司 | Bipolar isolation switch of railway traffic |
| CN202839326U (en) * | 2012-10-24 | 2013-03-27 | 苏州工业园区天东电器有限公司 | Protective hook of isolating switch |
| CN202957180U (en) * | 2012-12-07 | 2013-05-29 | 坦帕（福建）电气有限公司 | Fused type isolating switch |
| CN104241005A (en) * | 2014-09-06 | 2014-12-24 | 江苏中成辉锐电气有限公司 | Independent outdoor pole-mounted isolating switch |
| CN205428813U (en) * | 2016-03-25 | 2016-08-03 | 厦门理工学院 | Isolating switch |
| CN207367859U (en) * | 2017-10-17 | 2018-05-15 | 镇江市丹高电器有限公司 | A kind of heavy current disconnecting switches of high reliability |
-
2017
- 2017-10-17 CN CN201710962620.7A patent/CN107706034A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200944367Y (en) * | 2006-09-18 | 2007-09-05 | 河南森源电气股份有限公司 | Contact knife stretching regulator of indoor high-voltage isolating switch |
| CN101308741A (en) * | 2008-06-27 | 2008-11-19 | 成都通力集团股份有限公司 | Bipolar isolation switch of railway traffic |
| CN202839326U (en) * | 2012-10-24 | 2013-03-27 | 苏州工业园区天东电器有限公司 | Protective hook of isolating switch |
| CN202957180U (en) * | 2012-12-07 | 2013-05-29 | 坦帕（福建）电气有限公司 | Fused type isolating switch |
| CN104241005A (en) * | 2014-09-06 | 2014-12-24 | 江苏中成辉锐电气有限公司 | Independent outdoor pole-mounted isolating switch |
| CN205428813U (en) * | 2016-03-25 | 2016-08-03 | 厦门理工学院 | Isolating switch |
| CN207367859U (en) * | 2017-10-17 | 2018-05-15 | 镇江市丹高电器有限公司 | A kind of heavy current disconnecting switches of high reliability |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180216 |
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| RJ01 | Rejection of invention patent application after publication |