CN104097183A - Device for assembling and disassembling spring of circuit breaker - Google Patents
Device for assembling and disassembling spring of circuit breaker Download PDFInfo
- Publication number
- CN104097183A CN104097183A CN201410288160.0A CN201410288160A CN104097183A CN 104097183 A CN104097183 A CN 104097183A CN 201410288160 A CN201410288160 A CN 201410288160A CN 104097183 A CN104097183 A CN 104097183A
- Authority
- CN
- China
- Prior art keywords
- suspension rod
- cored screw
- spring
- screw
- nut
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/30—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
Abstract
The invention provides a device for assembling and disassembling a spring of a circuit breaker. The device comprises a support; the support is fixedly provided with a nut extending axially in the vertical direction; a screw assembly is assembled in the nut, and comprises a hollow screw which is coaxially matched with the nut spirally to form a screw nut mechanism capable of self-locking; a boom is coaxially and rotationally assembled in an inner hole, extending in the vertical direction, of the hollow screw; the lower end of the inner hole is of an open structure; a separation preventing structure for preventing the boom from being separated from the inner hole of the hollow screw from the lower side is arranged between the boom and the hollow screw; the lower end of the boom is fixedly connected with a suspension connecting piece which extends downwards out of the inner hole of the hollow screw and is used for being in transmission connection with the spring. The spring can be assembled and disassembled by only one worker; the safety in the assembling and disassembling process is high. Because the boom and the hollow screw are rotationally assembled, the boom does not rotate when the hollow screw rotates due to the reversed tension applied to the boom by the spring, the hollow screw can be prevented from driving the boom to rotate together to avoid influencing normal drag to the spring.
Description
Technical field
The present invention relates to a kind of breaker spring attaching/detaching apparatus.
Background technology
In the time of the switching-in spring disassembly process on breaker, it is all generally first fixing spring lower end, spring upper end is connected with iron wire, iron wire is passed to breaker cabinet housing, stretch with stiff spring by pulling iron wire, so in the fixed pin holes on back spring, install steady pin to fix the spring after stretching.
Mostly the method that pulls at present iron wire is to utilize lever principle, specifically form the collar in the bending of the end of iron wire, lever is penetrated in the collar, recycling lever levers up iron wire and stretches with stiff spring, after putting in place, spring stretching keep lever motionless, install steady pin so that spring is located by another person again, finally lever and the collar are departed from.
Because the rigidity of breaker spring is larger, the above-mentioned method of utilizing lever principle to pull iron wire needs two workmans' cooperation more, stretch and keep lever difference after spring stretching puts in place by people's presses lever stiff spring, installing steady pin by another person again positions spring, dismounting efficiency is low, and if the workman of presses lever slips out of the hand, easily there is security incident, security is poor.
Summary of the invention
The invention provides a kind of breaker spring attaching/detaching apparatus, while carrying out stiff spring to solve the mode of available technology adopting presses lever, need two people to coordinate and cause the technical problem that dismounting efficiency is lower.
The technical scheme of breaker spring attaching/detaching apparatus provided by the present invention is: a kind of breaker spring attaching/detaching apparatus, comprise support, on support, be installed with the nut axially extending along the vertical direction, in nut, be equipped with screw arbor assembly, screw arbor assembly comprises the cored screw that assembles to form screw-nut body that can self-locking with nut coaxial spiral, in the endoporus extending along the vertical direction of cored screw, coaxial rotation is equipped with suspension rod, endoporus lower end is hatch frame, between suspension rod and cored screw, be provided with and prevent that suspension rod from deviating from the disconnecting prevention structure of cored screw endoporus from below, suspension rod lower end is fixed with the suspention connector for being connected with spring transmission that extends cored screw endoporus downwards.
Described suspension rod by coaxial package the thrust bearing on suspension rod realize and being rotatably assorted of cored screw, the endoporus of described cored screw is the supine shoulder hole of ladder, described thrust bearing comprises circle, supports the lower circle on the cascaded surface that is placed on described shoulder hole and be arranged in the roller between upper and lower circle, the top of suspension rod is provided with the anticreep crossbeam with the upper circle top interference fit of described thrust bearing, and described disconnecting prevention structure comprises the cascaded surface of described anticreep crossbeam, thrust bearing and described shoulder hole.
Described thrust bearing is thrust ball bearing.
The hole wall of the large footpath section of described shoulder hole is provided with for installing the push rod installing hole of hand push rod to drive cored screw to rotate, and push rod mounting hole site is in the top of described suspension rod.
Described attaching/detaching apparatus also comprises the hand push rod being installed in described push rod installing hole.
Described suspention connector is the suspension hook that is installed in suspension rod lower end.
Described nut is for axially establishing female screwed pipe structure on extension, inner peripheral surface along the vertical direction.
The invention has the beneficial effects as follows: breaker spring attaching/detaching apparatus provided by the present invention in use, be in transmission connection corresponding with suspension linkage member the spring for the treatment of dismounting, driving cored screw to rotate rises, cored screw rotates when rising and drives suspension rod to rise by disconnecting prevention structure, suspension rod stretches by suspention connector stiff spring, in the time that spring is stretched to desired location, cored screw stops operating, due to nut and cored screw form can self-locking screw-nut body, cored screw can not occur rotating under the effect that is subject to the reversal interlocking relay that spring applies, again can to spring positioning instant by steady pin by workman, only need a workman can complete the disassemble and assemble work to spring, and disassembly process security is higher.And due to suspension rod and cored screw rotation assembling, due to the reversal interlocking relay that spring applies suspension rod, in the time that cored screw rotates, suspension rod will not rotate, thereby can prevent that cored screw from affecting the normal traction to spring with suspension rod together rotates.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of embodiment of breaker spring attaching/detaching apparatus provided by the present invention;
Fig. 2 is the cutaway view of screw arbor assembly in Fig. 1.
Detailed description of the invention
As shown in Figure 1 and Figure 2, a kind of embodiment of breaker spring attaching/detaching apparatus, attaching/detaching apparatus in this embodiment comprises support 1, and fixed placement is on breaker cabinet housing in use for support 1, and support 1 herein comprises that support bar 12 and support bar 12 weld the fixed head 11 being connected.Be installed with the nut 3 axially extending along the vertical direction at the medium position of the fixed head 11 of support 1, nut 3 is herein established the female screwed pipe structure with guide effect for axially extending along the vertical direction, on inner peripheral surface.In nut 3, be coaxially equipped with screw arbor assembly 2, screw arbor assembly 2 comprises the cored screw 21 that assembles to form screw-nut body that can self-locking with nut 3 spirals, on cored screw 21 outer peripheral faces, there is the ventricumbent block step 213 of step, the outer peripheral face of the bar section of the step surface below in block step 213 of cored screw 21 is provided with the outer motion thread corresponding with the internal thread of nut 3, after cored screw 21 spinnings are entered in nut 3, block step 213 on cored screw 21 outer peripheral faces can form block with the upper surface of nut 3 and coordinate to carry out spacing to the formation of cored screw, in the endoporus extending along the vertical direction of cored screw 21, coaxial rotation is equipped with suspension rod 22, suspension rod 22 by coaxial package thrust bearing on suspension rod 22 6 realize and being rotatably assorted of cored screw 21, thrust bearing 6 is herein specially thrust ball bearing, the endoporus lower end of cored screw is hatch frame, between suspension rod 22 and cored screw 21, be provided with and prevent that suspension rod 22 from deviating from the disconnecting prevention structure of cored screw 21 endoporus from below, in the present embodiment, the endoporus of cored screw 21 is cascaded surface 211 shoulder hole upward, thrust ball bearing comprises circle, support is placed on the lower circle on the cascaded surface of described shoulder hole and is arranged in, roller between lower circle, the top of suspension rod 22 is provided with the anticreep crossbeam 23 with the upper circle top interference fit of described thrust bearing 6, described disconnecting prevention structure comprises described anticreep crossbeam 23, the cascaded surface 211 of thrust bearing 6 and described shoulder hole, be fixed with the suspention connector for being connected with spring transmission that extends cored screw 21 endoporus downwards in suspension rod 22 lower ends, suspention connector is the suspension hook 5 that is installed in suspension rod 22 lower ends.
In the present embodiment, on the hole wall of the large footpath section 210 of the shoulder hole of cored screw 21, be provided with push rod installing hole 212, push rod installing hole 212 is positioned at the top of described suspension rod 22, and in push rod installing hole 212, correspondence is coated with hand push rod 4 to drive cored screw 21 to rotate.
When use, by corresponding support 1 fixed placement on breaker cabinet housing, the axis of cored screw 21 and the center line of spring are overlapped, rotating cored screw 21 by hand push rod 4 utilizes screw-nut body rotatablely moving of cored screw 21 to be changed into the upper and lower straight-line characteristic of suspension hook, drive suspension hook 5 to decline, the collar of the iron wire end bending for the treatment of to connect on the spring of dismounting is hung on suspension hook 5, then rotate cored screw 21 by hand push rod 4, make cored screw 21 increase with suspension rod 22, suspension hook 5, thereby stiff spring stretch.In extension spring process, because suspension rod 22 and cored screw 21 rotate assembling, apply to suspension rod under the effect of reversal interlocking relay at spring, suspension rod 21 can not rotate with spring, avoids having influence on the traction of spring is stretched.In extension spring process, note the position of fixed pin holes on spring, the hand push rod 4 that stops operating after fixed pin holes moves into place, penetrates steady pin correspondence in fixed pin holes and can realize fixing spring.After mounting or dismounting complete, can reduce suspension hook by rotary manual push rod, then iron wire is taken off, take this attaching/detaching apparatus away.The attaching/detaching apparatus that adopts above-described embodiment to provide, a workman can complete the dismounting of breaker spring, and operating efficiency is high, and security performance is good.
In above-described embodiment, suspension rod rotates assembling by thrust bearing and cored screw, in other embodiments, the rotation that suspension rod also can be realized by being arranged on bearing arrangement between suspension rod and cored screw suspension rod and cored screw turns joins, as ring-shaped groove being set in the corresponding side surface at suspension rod and cored screw, then loading roller in ring-shaped groove, can realize the rotation assembling of suspension rod and cored screw equally.
In above-described embodiment, thrust bearing is thrust ball bearing, and in other embodiments, thrust bearing can be also self-aligning thrust roller bearing or cylindrical roller thrust bearing or taper roll bearing, as long as can bear axial force.
In above-described embodiment, the endoporus of cored screw is shoulder hole, is convenient to like this arrange thrust bearing to realize rotation, the anticreep assembling of cored screw and suspension rod.In other embodiments, the endoporus of cored screw can be also straight hole, now, can in the endoporus of cored screw, assemble the anticreep inner sleeve of assembling with suspension rod rotation, anticreep by spiral.
Claims (7)
1. a breaker spring attaching/detaching apparatus, it is characterized in that: comprise support, on support, be installed with the nut axially extending along the vertical direction, in nut, be equipped with screw arbor assembly, screw arbor assembly comprises the cored screw that assembles to form screw-nut body that can self-locking with nut coaxial spiral, in the endoporus extending along the vertical direction of cored screw, coaxial rotation is equipped with suspension rod, endoporus lower end is hatch frame, between suspension rod and cored screw, be provided with and prevent that suspension rod from deviating from the disconnecting prevention structure of cored screw endoporus from below, suspension rod lower end is fixed with the suspention connector for being connected with spring transmission that extends cored screw endoporus downwards.
2. breaker spring attaching/detaching apparatus according to claim 1, it is characterized in that: described suspension rod by coaxial package the thrust bearing on suspension rod realize and being rotatably assorted of cored screw, the endoporus of described cored screw is the supine shoulder hole of ladder, described thrust bearing comprises circle, support is placed on the lower circle on the cascaded surface of described shoulder hole and is arranged in, roller between lower circle, the top of suspension rod is provided with the anticreep crossbeam with the upper circle top interference fit of described thrust bearing, described disconnecting prevention structure comprises described anticreep crossbeam, the cascaded surface of thrust bearing and described shoulder hole.
3. breaker spring attaching/detaching apparatus according to claim 2, is characterized in that: described thrust bearing is thrust ball bearing.
4. according to the breaker spring attaching/detaching apparatus described in claim 2 or 3, it is characterized in that: the hole wall of the large footpath section of described shoulder hole is provided with for installing the push rod installing hole of hand push rod to drive cored screw to rotate, and push rod mounting hole site is in the top of described suspension rod.
5. breaker spring attaching/detaching apparatus according to claim 4, is characterized in that: described attaching/detaching apparatus also comprises the hand push rod being installed in described push rod installing hole.
6. according to the breaker spring attaching/detaching apparatus described in claim 1 or 2 or 3, it is characterized in that: described suspention connector is the suspension hook that is installed in suspension rod lower end.
7. according to the breaker spring attaching/detaching apparatus described in claim 1 or 2 or 3, it is characterized in that: described nut is for axially establishing female screwed pipe structure on extension, inner peripheral surface along the vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410288160.0A CN104097183A (en) | 2014-06-25 | 2014-06-25 | Device for assembling and disassembling spring of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410288160.0A CN104097183A (en) | 2014-06-25 | 2014-06-25 | Device for assembling and disassembling spring of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104097183A true CN104097183A (en) | 2014-10-15 |
Family
ID=51665927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410288160.0A Pending CN104097183A (en) | 2014-06-25 | 2014-06-25 | Device for assembling and disassembling spring of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104097183A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105291048A (en) * | 2015-12-07 | 2016-02-03 | 国网山东莒南县供电公司 | Electric breaker spring disassembly device |
| CN108598966A (en) * | 2018-04-20 | 2018-09-28 | 廊坊市东电腾达电力工程有限公司 | Disconnecting link fastening spring disintegration tool |
| CN111037515A (en) * | 2020-01-20 | 2020-04-21 | 云南电网有限责任公司楚雄供电局 | 35kV circuit breaker closing spring assembly and disassembly tools |
| CN111055240A (en) * | 2020-01-20 | 2020-04-24 | 云南电网有限责任公司楚雄供电局 | Triangle frame type circuit breaker closing spring dismouting device |
| CN111128581A (en) * | 2020-01-20 | 2020-05-08 | 云南电网有限责任公司楚雄供电局 | Circuit breaker closing spring replacing tool capable of being assembled, disassembled and disassembled |
| CN111360764A (en) * | 2020-01-20 | 2020-07-03 | 云南电网有限责任公司楚雄供电局 | Device is changed to base type 35kV circuit breaker closing spring |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6393682B1 (en) * | 2000-06-26 | 2002-05-28 | O'kane Donald L. | Spring loaded mud flap installation tool |
| CN2788981Y (en) * | 2005-04-05 | 2006-06-21 | 马志云 | Special tool for mounting car shock absorber spring |
| CN202549660U (en) * | 2012-04-29 | 2012-11-21 | 沧州供电公司 | Contact finger spring installer of isolation disconnector |
| CN102969179A (en) * | 2012-11-21 | 2013-03-13 | 保定供电公司 | Spring replacing tool for circuit breaker |
| CN103817653A (en) * | 2014-03-19 | 2014-05-28 | 国家电网公司 | Dismounting tool for closing spring of spring operating mechanism |
| CN204036393U (en) * | 2014-06-25 | 2014-12-24 | 国家电网公司 | Breaker spring attaching/detaching apparatus |
-
2014
- 2014-06-25 CN CN201410288160.0A patent/CN104097183A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6393682B1 (en) * | 2000-06-26 | 2002-05-28 | O'kane Donald L. | Spring loaded mud flap installation tool |
| CN2788981Y (en) * | 2005-04-05 | 2006-06-21 | 马志云 | Special tool for mounting car shock absorber spring |
| CN202549660U (en) * | 2012-04-29 | 2012-11-21 | 沧州供电公司 | Contact finger spring installer of isolation disconnector |
| CN102969179A (en) * | 2012-11-21 | 2013-03-13 | 保定供电公司 | Spring replacing tool for circuit breaker |
| CN103817653A (en) * | 2014-03-19 | 2014-05-28 | 国家电网公司 | Dismounting tool for closing spring of spring operating mechanism |
| CN204036393U (en) * | 2014-06-25 | 2014-12-24 | 国家电网公司 | Breaker spring attaching/detaching apparatus |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105291048A (en) * | 2015-12-07 | 2016-02-03 | 国网山东莒南县供电公司 | Electric breaker spring disassembly device |
| CN108598966A (en) * | 2018-04-20 | 2018-09-28 | 廊坊市东电腾达电力工程有限公司 | Disconnecting link fastening spring disintegration tool |
| CN111037515A (en) * | 2020-01-20 | 2020-04-21 | 云南电网有限责任公司楚雄供电局 | 35kV circuit breaker closing spring assembly and disassembly tools |
| CN111055240A (en) * | 2020-01-20 | 2020-04-24 | 云南电网有限责任公司楚雄供电局 | Triangle frame type circuit breaker closing spring dismouting device |
| CN111128581A (en) * | 2020-01-20 | 2020-05-08 | 云南电网有限责任公司楚雄供电局 | Circuit breaker closing spring replacing tool capable of being assembled, disassembled and disassembled |
| CN111360764A (en) * | 2020-01-20 | 2020-07-03 | 云南电网有限责任公司楚雄供电局 | Device is changed to base type 35kV circuit breaker closing spring |
| CN111360764B (en) * | 2020-01-20 | 2024-04-12 | 云南电网有限责任公司楚雄供电局 | Base type 35kV circuit breaker closing spring replacement device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141015 |