CN102005702B - Mounting clamp for switch moving contact - Google Patents
Mounting clamp for switch moving contact Download PDFInfo
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- CN102005702B CN102005702B CN2010102990347A CN201010299034A CN102005702B CN 102005702 B CN102005702 B CN 102005702B CN 2010102990347 A CN2010102990347 A CN 2010102990347A CN 201010299034 A CN201010299034 A CN 201010299034A CN 102005702 B CN102005702 B CN 102005702B
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- upper clamp
- lower clamp
- clamp
- clamp body
- movable contact
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Abstract
The invention belongs to the field of a tooling clamp, in particular to a mounting clamp for a switch moving contact and used for a semi-insulating ring main unit. The mounting clamp comprises an upper clamp body and a lower clamp body, wherein the upper clamp body and the lower clamp body are connected with each other in a moving manner and have the same length L; a space compressing mechanism and a resetting mechanism are arranged between the upper clamp body and the lower clamp body; both ends of the space compressing mechanism are respectively connected with the upper clamp body and the lower clamp body; both ends of the resetting mechanism are respectively arranged in the upper clamp body and the lower clamp body; the horizontal distance D from the position of the space compressing mechanism to the connection position of the upper clamp body and the lower clamp body is greater than or equal to 0.5L; and the end of the upper clamp body is provided with a notch, the end of the lower clamp body is provided with a pit, and the notch and the pit are in the same line approximately in the vertical direction. By utilizing the invention, the problem of arranging a dished spring pad or other elastic components with high elasticity on a device similar to a latch is solved, the operation is convenient and quick, and the working efficiency is enhanced greatly.
Description
Technical field
The invention belongs to the frock clamp field, especially a kind of switch movable contact sectional fixture that is used for semi-insulating ring main unit.
Background technology
Ring main unit is that one group of high voltage switchgear is contained in the steel sheet metal cabinet or makes the electric equipment of assembly unit compartment ring network power supply unit; On-load switch and fuse are adopted in its core, have simple in structure, volume is little, price is low, can improve power supply parameter and advantages such as performance and power supply safety.It is widely used in the power distribution station and box-type substation of load centers such as Urban House sub-district, skyscraper, large public building, factory and enterprise.In order to improve power supply reliability, make the user obtain power supply from both direction, usually power supply network is connected into annular.This supply power mode abbreviates ring network power supply as.Exchange in the 10KV distribution system at industrial and mining enterprises, residential quarters, harbour and skyscraper etc., because of load is held not quite, on-load switch or vacuum contactor control are adopted in its high tension loop usually, and are furnished with the high-tension fuse protection.This system adopts ring network power supply usually, use on the high-tension switch cabinet general custom and be called ring main unit.Ring main unit is except to the power supply of this distribution substation; Its high voltage bus also will be through the through current (promptly through the electric current of this distribution substation bus to the power supply of adjacent distribution substation) of annular electric supply net; Therefore the high voltage bus cross section of ring main unit will be selected in looped network through current sum according to the load current of this distribution substation, to guarantee not running overload of high voltage bus in service.
Particularly semi-insulating ring main unit is used more extensive in the ring main unit; In semi-insulating ring main unit, be used for need the moving contact of switch being inserted ring main unit and be electrically connected, the structure of moving contact is as shown in Figure 1, mainly by latch a, spring pad b and the jump ring c that is used to block spring pad; Latch a bottom is a sphere; Jump ring places in the location hole d on the latch, because spring pad b all adopts the disk spring pad, the disk spring pad is to be designed for the lock washer that bolt is connected with screw.Be used for the connection of medium or high-strength bolt, screw.Bearing load is big extensive strong with elasticity, and bolt tension force can bear owing to what following reason produced and relax, so the disk spring pad can make the elastic reaction of the latch of screw increase several times, and it can replace common spring washer effectively.Just because of the elasticity of butterfly spring pad is very strong, so in the practical set process, be difficult to compress and block, sometimes also adopt pliers to clamp, but poor make disk spring damage, more greatly less than expected effect easily with jump ring c.
Summary of the invention
The present invention is directed to the spring pad that exists in the above-mentioned technology and be difficult to the shortcoming that gland also tightens through jump ring on latch; A kind of switch movable contact sectional fixture is proposed; It can be stable spring pad is compressed after; Like a cork jump ring is snapped in the location hole on the latch, overcome the weak point that exists in the above-mentioned technology.
Realize that technical scheme of the present invention is following:
The switch movable contact sectional fixture; It comprises the upper clamp and the lower clamp of mutual flexible connection and equal in length, and the length of upper clamp and lower clamp is L, is provided with spacing compressing mechanism and resetting device between upper clamp and the lower clamp; Spacing compressing mechanism two ends are connected with lower clamp with upper clamp respectively; The resetting device two ends are located at upper clamp respectively and lower clamp is inboard, and the position at spacing compressing mechanism place is to the horizontal range D >=0.5L of upper clamp and lower clamp connection, and the upper clamp end is provided with a recess; The lower clamp end is provided with a pit, recess and pit vertical to roughly at a straight line.
Upper clamp and lower clamp one end flexibly connect, and the other end can contract under the effect of spacing compressing mechanism apart from clamping, and the latch bottom is placed in the pit of lower clamp; Latch is erected in the recess, and therefore the recess opening just receives the compression of stability and safety less than spring pad at the effect lower spring pad of spacing compressing mechanism; When upper clamp is lower than location hole, just jump ring is inserted in the location hole and position, so just installed; Take off bearing pin this moment again; When the spacing compressing mechanism unclamped, upper clamp and lower clamp opened under the effect of resetting device, thereby can work next time; Wherein the effect of recess is that latch cylinder end is placed in it, is convenient to compress spring pad and makes location hole expose upper clamp and jump ring is inserted, and it is location, latch sphere end that pit is convenient to; Prevent latch positioning in compression, recess and pit vertical to roughly at same straight line, in order to adapt to latch; Make spring pad ability vertical compression, effective, compression speed is fast; The upper clamp notch end also is set to the sedimentation step, makes things convenient for the location hole of latch to expose upper clamp and make things convenient for jump ring to insert location hole; Length L/2 of the horizontal range D of upper clamp and lower clamp connection more than or equal to upper clamp or lower clamp are arrived in the position at spacing compressing mechanism place; Be fulcrum with upper clamp and lower clamp junction like this; More light quick and safety when the spacing compressing mechanism compresses; Wherein, D effect between 0.6L-0.9L is best, generally adopts D to equal 0.8L.
The link of described upper clamp and lower clamp is provided with loose slot, and lower clamp is provided with the movable block that matches with loose slot, flexibly connects through bearing pin between loose slot and the movable block.It is more flexible to make upper clamp and lower clamp clamping perhaps open through hinged mode, is that axle is more firm with the bearing pin.
Described spacing compressing mechanism comprises bolts and nuts, and bolt passes upper clamp and lower clamp is connected with nut.Through cooperating of nut and bolt, can regulate the distance of upper clamp and lower clamp end.
Described spacing compressing mechanism is cylinder or oil cylinder, and cylinder or oil cylinder are located on upper clamp or the lower clamp, and its cylinder bar is located on lower clamp or the upper clamp accordingly.The cylinder bar of cylinder or oil cylinder shrinks or stretches out and also can make upper clamp and lower clamp reach clamping or open effect, and uses cylinder or oil cylinder not to need manual operations, safer convenience, stable.
Described resetting device is a flexible restoring organ.Adopt flexible restoring organ that upper clamp and lower clamp are automatically reset, do not need other manual operations.
The bottom that is shaped as of described recess is the end that line extending to upper clamp is passed through on circular arc and both sides.The bottom of recess circular arc can cooperate with the latch cylinder; The latch cylinder can't be moved radially in recess, the time upper clamp on the latch main body, move axially more smooth and easyly, the recess both sides connect circular arc-shaped bottom portion through line segment; The formation shape of dehiscing makes things convenient for latch to put into recess accurately.
Described pit is the pit of concave spherical surface.The pit of concave spherical surface fully cooperates with the sphere bottom of latch, and when making the compression of upper clamp and lower clamp, latch can more stable being placed on the lower clamp.
Described bolt is provided with swivel plate, and nut is provided with the Handheld Division of symmetry.The setting of swivel plate and Handheld Division makes operating personnel turn bolt, nut more easily.
Described flexible restoring organ is a back-moving spring.The back-moving spring elastic effect is good.
The angle of the extended line of described line segment is α, 30 °≤α≤45 °.The setting of this angle makes the latch can tension in recess, and latch can fully be contacted with the circular arc bottom of recess, but again can be not loose excessively when fully contacting, the stability of assurance latch on upper clamp.
The present invention solves the very strong disk spring pad of elastic force or other elastomeric elements are fit on the device of similar latch, and is convenient to operation, improved operating efficiency greatly.
Description of drawings
Fig. 1 is the structural representation of switch movable contact;
Fig. 2 is a structural representation of the present invention;
Fig. 3 is that the A of Fig. 2 is to partial view;
Fig. 4 is the another kind of example of implementing of the present invention.
Embodiment
Like Fig. 2, shown in Figure 3, the switch movable contact sectional fixture, it comprises the upper clamp 1 and lower clamp 2 of mutual flexible connection and equal in length; Upper clamp 1 is L with the length of lower clamp 2; Be provided with spacing compressing mechanism and resetting device between upper clamp 1 and the lower clamp 2, spacing compressing mechanism two ends are connected respectively with lower clamp 2 with upper clamp 1, and the resetting device two ends are located at upper clamp 1 and lower clamp 2 inboards respectively; The position at spacing compressing mechanism place is to the horizontal range D >=0.5L of upper clamp 1 with lower clamp 2 connections; Upper clamp 1 end is provided with a recess 12, and the lower clamp end is provided with a pit 22, recess 12 and pit 22 vertical to roughly at a straight line.
Upper clamp and lower clamp one end flexibly connect, and the other end can contract under the effect of spacing compressing mechanism apart from clamping, and the latch bottom is placed in the pit of lower clamp; Latch is erected in the recess, and therefore the recess opening just receives the compression of stability and safety less than spring pad at the effect lower spring pad of spacing compressing mechanism; When upper clamp is lower than location hole, just jump ring is inserted in the location hole and position, so just installed; Take off bearing pin this moment again; When the spacing compressing mechanism unclamped, upper clamp and lower clamp opened under the effect of resetting device, thereby can work next time; Wherein the effect of recess is that latch cylinder end is placed in it, is convenient to compress spring pad and makes location hole expose upper clamp and jump ring is inserted, and it is location, latch sphere end that pit is convenient to; Prevent latch positioning in compression, recess and pit vertical to roughly at same straight line, in order to adapt to latch; Make spring pad ability vertical compression, effective, compression speed is fast; The upper clamp notch end also is set to sedimentation step 13, makes things convenient for the location hole of latch to expose upper clamp and make things convenient for jump ring to insert location hole; Length L/2 of the horizontal range D of upper clamp and lower clamp connection more than or equal to upper clamp or lower clamp are arrived in the position at spacing compressing mechanism place; Be fulcrum with upper clamp and lower clamp junction like this; More light quick and safety when the spacing compressing mechanism compresses; Wherein, D effect between 0.6L-0.9L is best, generally adopts D to equal 0.8L.
Wherein, upper clamp 1 is provided with loose slot 11 with the link of lower clamp 2, and lower clamp 2 is provided with the movable block 21 that matches with loose slot 11, flexibly connects through bearing pin 3 between loose slot 11 and the movable block 21.It is more flexible to make upper clamp and lower clamp clamping perhaps open through hinged mode, is that axle is more firm with the bearing pin.
Wherein, the spacing compressing mechanism comprises bolt 4 and nut 6, and bolt 4 passes upper clamp 1 and lower clamp 2 is connected with nut 6.Through cooperating of nut and bolt, can regulate the distance of upper clamp and lower clamp end.
Perhaps as shown in Figure 4, wherein, the spacing compressing mechanism be cylinder 7 or oil cylinder 7 ', cylinder 7 or oil cylinder 7 ' be located on upper clamp or the lower clamp, its cylinder bar is located on lower clamp or the upper clamp accordingly.The cylinder bar of cylinder or oil cylinder shrinks or stretches out and also can make upper clamp and lower clamp reach clamping or open effect, and uses cylinder or oil cylinder not to need manual operations, safer convenience, stable.
Wherein, resetting device is a flexible restoring organ.Adopt flexible restoring organ that upper clamp and lower clamp are automatically reset, do not need other manual operations.
Wherein, recess 12 be shaped as the bottom 12a be circular arc and both sides extend to upper clamp 1 through line segment 12b and 12b ' end.The bottom of recess circular arc can cooperate with the latch cylinder; The latch cylinder can't be moved radially in recess, the time upper clamp on the latch main body, move axially more smooth and easyly, the recess both sides connect circular arc-shaped bottom portion through line segment; The formation shape of dehiscing makes things convenient for latch to put into recess accurately.
Wherein, pit 22 is the pit of concave spherical surface.The pit of concave spherical surface fully cooperates with the sphere bottom of latch, and when making the compression of upper clamp and lower clamp, latch can more stable being placed on the lower clamp.
Wherein, bolt 4 is provided with swivel plate 41, and nut 6 is provided with the Handheld Division 61 of symmetry.The setting of swivel plate and Handheld Division makes operating personnel turn bolt, nut more easily.
Wherein, flexible restoring organ is a back-moving spring 5.The back-moving spring elastic effect is good.
The angle of the extended line of its middle conductor 12b and 12b ' is α, 30 °≤α≤45 °.The setting of this angle makes the latch can tension in recess, and latch can fully contact with the circular arc bottom of recess, but again can be loose excessively when fully contacting, and guarantees the stability of latch on upper clamp, and generally the α employing is 35 ° perhaps 40 °.
Above true example be of the present invention limited for example, it is any that what on basis of the present invention, carry out all is the scope that the present invention protects.
Claims (10)
1. switch movable contact sectional fixture; It is characterized in that: it comprises the upper clamp and the lower clamp of mutual flexible connection and equal in length, and the length of upper clamp and lower clamp is L, is provided with spacing compressing mechanism and resetting device between upper clamp and the lower clamp; Spacing compressing mechanism two ends are connected with lower clamp with upper clamp respectively; The resetting device two ends are located at upper clamp respectively and lower clamp is inboard, and the position at spacing compressing mechanism place is to the horizontal range D >=0.5L of upper clamp and lower clamp connection, and the upper clamp end is provided with a recess; The lower clamp end is provided with a pit, recess and pit vertical to roughly at a straight line.
2. switch movable contact sectional fixture according to claim 1; It is characterized in that: the link of described upper clamp and lower clamp is provided with loose slot; Lower clamp is provided with the movable block that matches with loose slot, flexibly connects through bearing pin between loose slot and the movable block.
3. switch movable contact sectional fixture according to claim 1 is characterized in that: described spacing compressing mechanism comprises bolts and nuts, and bolt passes upper clamp and lower clamp is connected with nut.
4. switch movable contact sectional fixture according to claim 1 is characterized in that: described spacing compressing mechanism is cylinder or oil cylinder, and cylinder or oil cylinder are located on upper clamp or the lower clamp, and its cylinder bar is located on lower clamp or the upper clamp accordingly.
5. switch movable contact sectional fixture according to claim 1 is characterized in that: described resetting device is a flexible restoring organ.
6. switch movable contact sectional fixture according to claim 1 is characterized in that: the bottom that is shaped as of described recess is the end that line extending to upper clamp is passed through on circular arc and both sides.
7. switch movable contact sectional fixture according to claim 1 is characterized in that: described pit is the pit of concave spherical surface.
8. switch movable contact sectional fixture according to claim 3 is characterized in that: described bolt is provided with swivel plate, and nut is provided with the Handheld Division of symmetry.
9. switch movable contact sectional fixture according to claim 5 is characterized in that: described flexible restoring organ is a back-moving spring.
10. switch movable contact sectional fixture according to claim 6 is characterized in that: the angle of the extended line of described line segment is α, 30 °≤α≤45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102990347A CN102005702B (en) | 2010-09-29 | 2010-09-29 | Mounting clamp for switch moving contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102990347A CN102005702B (en) | 2010-09-29 | 2010-09-29 | Mounting clamp for switch moving contact |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102005702A CN102005702A (en) | 2011-04-06 |
| CN102005702B true CN102005702B (en) | 2012-09-19 |
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ID=43812855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102990347A Active CN102005702B (en) | 2010-09-29 | 2010-09-29 | Mounting clamp for switch moving contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102005702B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4655538A (en) * | 1981-03-30 | 1987-04-07 | Mitsubishi Denki Kabushiki Kaisha | Terminal connecting device for pulling-type breaker |
| CN201181654Y (en) * | 2008-01-25 | 2009-01-14 | 高调苹 | Spring clamper |
| CN201503787U (en) * | 2009-08-06 | 2010-06-09 | 江苏辉能电气有限公司 | Contact assembly fixture with rotational crank arms |
| CN201570395U (en) * | 2009-12-09 | 2010-09-01 | 洛阳龙羽集团有限公司检修分公司 | Clamp for disassembling and assembing contact part of high voltage isolator |
| CN201845999U (en) * | 2010-09-29 | 2011-05-25 | 常州市德春电器有限公司 | Switch moving contact installation fixture |
-
2010
- 2010-09-29 CN CN2010102990347A patent/CN102005702B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4655538A (en) * | 1981-03-30 | 1987-04-07 | Mitsubishi Denki Kabushiki Kaisha | Terminal connecting device for pulling-type breaker |
| CN201181654Y (en) * | 2008-01-25 | 2009-01-14 | 高调苹 | Spring clamper |
| CN201503787U (en) * | 2009-08-06 | 2010-06-09 | 江苏辉能电气有限公司 | Contact assembly fixture with rotational crank arms |
| CN201570395U (en) * | 2009-12-09 | 2010-09-01 | 洛阳龙羽集团有限公司检修分公司 | Clamp for disassembling and assembing contact part of high voltage isolator |
| CN201845999U (en) * | 2010-09-29 | 2011-05-25 | 常州市德春电器有限公司 | Switch moving contact installation fixture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102005702A (en) | 2011-04-06 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 213138 Jiangsu city of Changzhou Province Meng he Zhen Tang Jia Er Lu New District No. 58 Patentee after: JIANGSU DECHUN POWER ELECTRIC CO.,LTD. Address before: 213138 Jiangsu city of Changzhou Province Meng he Zhen Tang Jia Er Lu New District No. 58 Patentee before: JIANGSU DECHUN POWER ELECTRIC Co.,Ltd. |
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| CP03 | Change of name, title or address |
Address after: 213138 Jiangsu city of Changzhou Province Meng he Zhen Tang Jia Er Lu New District No. 58 Patentee after: JIANGSU DECHUN POWER ELECTRIC Co.,Ltd. Address before: 213138 Jiangsu province Changzhou new North Menghe River town of Fumin Industrial Park Tang Jia Er Road No. 58 Patentee before: Changzhou Dechun Electrical Appliance Co.,Ltd. |