CN103811209B - A kind of replacing options of contact of breaker and specific purpose tool - Google Patents
A kind of replacing options of contact of breaker and specific purpose tool Download PDFInfo
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- CN103811209B CN103811209B CN201410012649.5A CN201410012649A CN103811209B CN 103811209 B CN103811209 B CN 103811209B CN 201410012649 A CN201410012649 A CN 201410012649A CN 103811209 B CN103811209 B CN 103811209B
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Abstract
The replacing options of contact of breaker and a specific purpose tool, belong to distribution equipment field.Comprise plurality of copper contact blade, contact supporting and fixing spring are assembled into one, and be sleeved on contact of breaker arm head portion, it adopts in vitro assembling, the mode of Integral in-position, by cone shape specific purpose tool, make fixing spring uniform stressed in contact assembly assembling and process in place, spring is avoided to cause local deformation because of unbalance stress, to ensure each copper contact sheet uniform force, both the assembling of sets of contacts had been facilitated, assembling quality and speed can be ensured again, can be convenient, quickly contact assembly is assembled and integral replacing, can avoid because contact is bad, heating forms potential accident potential, greatly can shorten the time that killer switch equipment state out of service carries out overhauling, also can reduce the operation labor intensity of service worker, guarantee the personal safety in its operation process.The maintenance of vacuum circuit-breaker, maintenance field can be widely used in.
Description
Technical field
The invention belongs to distribution equipment field, particularly relate to a kind of method for maintaining for contact of breaker and maintenance tool.
Background technology
Primary cut-out is power plant, power transformation most important control and protection equipment in electric power system in one's power.
Existing VB series vacuum type circuit breaker, for trolley type circuit breaker, it is provided with upper and lower moving contact, and (this " moves " is relative to the fixed contact arranged corresponding in switch cubicle, namely " fixed contact " described after, mean described upper and lower moving contact " to move " with the movement of circuit breaker trolley), the vacuum bubbles (being commonly called as of vacuum interrupter) for being switched on or switched off primary power source loop is provided with between upper and lower moving contact, in switch cubicle, correspondence is provided with upper and lower fixed contact.
Upper described in it, lower moving contact is (due to upper, the structure of lower moving contact is identical, therefore hereinafter referred to as moving contact) with switch cubicle in corresponding arrange upper, lower fixed contact (hereinafter referred to as fixed contact) position matches and opening direction is arranged in opposite directions, when circuit breaker trolley is pushed into that in switch cubicle, service position is in place, fixed contact in switch cubicle inserts in moving contact corresponding to circuit breaker, " upper entering and lower leaving " is made (to mean high voltage source and enter circuit breaker by high voltage bus through upper contact head, export outlet cable to from the lower contact of circuit breaker) a major loop realize the mechanical connection of electric loop, now by " combined floodgate " or " separating brake " button of operating breaker, described vacuum bubbles is switched on or switched off under the driving of combined floodgate/brake separating mechanism, can control trolley type circuit breaker and realize " connection " or the "off" of a major loop in circuit implication.
Wherein, the critical component of described moving contact is contact assembly.
The contact assembly structure of existing VB series vacuum type moving contact of breaker as shown in Figures 1 to 4, its structure is by the structure of the single copper contact sheet of plurality of copper contact blade 2(as shown in Figure 2) be placed on two groups of contact supportings 3-1,3-2, outward by two groups totally four fixing springs 4-1,4-2 fixed, scribble conductive silver layer on the surface of copper contact sheet to improve its electric conductivity.
The contact assembly of above-mentioned whole group, inlay card is assemblied in the structure of the contact arm 1(contact arm of circuit breaker as shown in Figure 1) on, the head of contact of breaker arm 1 described in it is provided with a ring-type location notch 1-1 and head annular projection 1-3, and the end face of contact arm head is also provided with location hole 1-2.
Copper contact sheet first and end (in Fig. 2 copper contact sheet right-hand member headed by, left end is end) be respectively arranged with first, second spring fixed gap 2-3,2-4, in the first and end of described copper contact sheet, correspondence is provided with contact projection 2-2 and positioning convex 2-1 respectively.
Owing to being provided with positioning convex (shown in Figure 2) at the end of copper contact sheet, it just in time embeds the ring-type location notch 1-1 interior (shown in Figure 1) of contact arm, add the location/support of the first contact supporting 3-1 and the inside pressure contractions effect of first group of fixing spring 4-1, then whole contact assembly is just securely fixed in the front end of contact arm.
When circuit breaker trolley is pushed into that in switch cubicle, " service position " is in place, in the moving contact described in left-hand end insertion of the fixed contact (not shown) contact assembly from Fig. 3 or Fig. 4 in switch cubicle, under the acting in conjunction of contact projection 2-2 and second group of fixing spring 4-2 of copper contact sheet head end, mineralization pressure formula close contact between dynamic and static contact, thus the connection forming a major loop.
Due to the arc burning in the burning of equipment and normal course of operation, along with the increase of circuit breaker on-line operation time, the damage on copper contact sheet surface on moving contact can be caused, cause the contact resistance between itself and fixed contact to increase; Or, because copper contact sheet is for a long time by rated current, its heating effect makes two groups of described totally four fixing spring temperature distortions, and elasticity reduces, and then the contact had influence between aforementioned copper contact sheet and fixed contact, easily cause the loose contact between heating or dynamic and static contact.So, in daily repair and maintenance process, once find the situation of the damage of copper contact sheet and camber of spring, just must change it.
For the moving contact of said structure, the installation steps of present regulation are first sleeved in contact arm 1 by the first contact supporting 3-1, again plurality of copper contact blade (there are 15 usually, in order to the succinct of picture only depicts 3 in figure) be arranged in the ring-type location notch of contact arm, finally by successively two groups of four spring fittings being got on.
According to above-mentioned steps, change the copper contact sheet in a contact arm, need three to four skilled maintenance mans to coordinate and carry out work, first will be placed on contact supporting after all copper contact sheet marshallings, do not hang down from contact supporting to make copper contact sheet, generally at the head end right-hand end of contact assembly (namely in Fig. 2) of copper contact sheet, second group of fixing spring 4-2 is first installed, the end of plurality of copper contact blade is now under the pressure effect of second group of fixing spring, outwards can open as " trumpet flower " burst forth, by openend (the i.e. end of aforesaid copper contact sheet of one to two staff by " trumpet flower ", the i.e. left-hand end of contact assembly in Fig. 2) aim at the ring-type location notch of contact arm, press all copper contact sheets with strength, until described plurality of copper contact blade becomes cylindrical by tubaeform, and firmly keep this shape, the spring screwdriver being arranged in each copper contact sheet head end (right-hand member of Fig. 2) is provoked and is fiddled with by other one to two staff, progressively be moved to the left, and remaining two fixing springs loaded onto by cover, until four fixing springs are all in place in the spring fixed gap of correspondence, the replacing end-of-job of whole copper contact sheet group.
Because the thrust of fixing spring is huge, when installation exercise needs personnel's coordinated transposition, often can there is operator's hand and be jammed, the industrial accident of even bleeding; Meanwhile, use screwdriver and fiddle with and mobile spring, often cause the local deformation of spring, make the plurality of copper contact blade discontinuity on contact rack, cause described contact assembly monolithic conductive uneven, contact be bad, heating, define again potential accident potential.
How under the prerequisite ensureing assembling quality, quickly and easily contact assembly can be changed, also relate to and shorten time that killer switch equipment state out of service carries out overhauling and reduce the economic loss problem that electric substation's outlet stops power supply.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of replacing options and specific purpose tool of contact of breaker, it adopts in vitro assembling, the mode of Integral in-position, both the assembling of sets of contacts had been facilitated, assembling quality and speed can be ensured again, the safety of operator can be ensured, also can under the prerequisite ensureing assembling quality, quickly and easily contact assembly is assembled and integral replacing, greatly can shorten the time that killer switch equipment state out of service carries out overhauling, reduce the economic loss that electric substation's outlet is stopped power supply.
Technical scheme of the present invention is: the replacing options providing a kind of contact of breaker, comprise and plurality of copper contact blade, contact supporting and fixing spring are assembled into one, and be sleeved on contact of breaker arm head portion, wherein, described contact supporting comprises first, second contact supporting, described fixing spring comprises first, second group fixing spring, described copper contact sheet is respectively arranged with the breach of fixing spring in its first and end, in the first and end of described copper contact sheet, correspondence is provided with contact projection and positioning convex respectively, it is characterized in that:
The spring housing of described first fixing spring group is contained in the first position, contact supporting place by a workbench;
By between the spring described in the copper contact sheet insertion described in first and the first contact supporting, the end of this copper contact sheet is inserted in the locating notch on the first contact supporting, and described spring is snapped in the breach of copper contact sheet end fixing spring in place;
First contact supporting is on the position at diagonal angle with described first copper contact sheet in place, by between the spring described in second copper contact sheet insertion and the first contact supporting, the end of this copper contact sheet is inserted in the locating notch on the first contact supporting, and described spring is snapped in the breach of copper contact sheet end fixing spring in place;
Between the head end of first, second sheet copper contact sheet described, the second contact supporting described in placement, inserts in the corresponding locating notch on the second contact supporting by the head end of first, second sheet copper contact sheet;
So sequentially all copper contact sheets are inserted in the locating notch on first, second contact supporting, and make described spring snap in the breach of each copper contact sheet end fixing spring, form contact assembly semi-finished product;
Wherein, the circular open ends that each copper contact sheet end surrounds forms the half-finished end of contact assembly, and the circular open ends that each copper contact sheet head end surrounds forms the half-finished head end of contact assembly;
The truncated cone that one longitudinal cross-section is antiparallelogram is set, one cylinder matched with the location hole diameter of described contact arm head is set in the bottom of truncated cone, one bar stock is set at the top of truncated cone, forms the replacing specific purpose tool of contact of breaker;
Described replacing specific purpose tool is inserted, to described spring is initially located in stress from the half-finished end of described contact assembly;
To contact assembly half-finished replacing specific purpose tool will be loaded with move to the head of described contact of breaker arm, horizontal positioned, described cylinder correspondence will be inserted in the location hole of described contact arm head; Make the end contact of the bottom of described truncated cone and described contact arm head;
Contact assembly semi-finished product on specific purpose tool are changed in the horizontal direction by being sleeved on, push to contact arm cephalad direction entirety, make the positioning convex of described contact assembly semi-finished product each copper contact sheet end correspondence snap in the ring-type location notch of described contact arm head in place;
Described replacing specific purpose tool is extracted out in the half-finished head end opening of described contact assembly;
The spring housing of described second fixing spring group is filled in the breach of each copper contact sheet head end fixing spring of contact assembly semi-finished product successively, forms complete contact assembly;
Described replacing options is by vitro assembling, the mode of Integral in-position, realize the integral replacing of described contact of breaker, both the assembling of contact assembly had been facilitated, quality and the speed of assembling can be ensured again, the safety of operator can be ensured, under the prerequisite ensureing assembling quality, quickly and easily contact assembly is assembled and integral replacing.
Concrete, first, second fixing spring group described in it comprises two springs respectively.
The base diameter of truncated cone described in it, is equal to or greater than the external diameter of described contact arm head.
The base diameter of truncated cone described in it, is less than the internal diameter of first, second contact supporting described.
First, second contact supporting described in it is circular ring plate, in the outer circumference of described circular ring plate, be evenly equipped with the locating notch equal with described copper contact sheet quantity, the head end of each copper contact sheet described, inserts respectively and is fixed in the corresponding locating notch of described second contact supporting circular ring plate outer circumference; The end of each copper contact sheet described, inserts respectively and is fixed in the corresponding locating notch of described first contact supporting circular ring plate outer circumference.
Replacing Scheme described in the technical program utilizes the truncated cone of described replacing specific purpose tool, make described spring uniform stressed in contact assembly assembling and process in place, spring is avoided to cause local deformation because of unbalance stress, ensure copper contact sheet uniform force described in each by this, avoid contact bad, heating, form potential accident potential.
Present invention also offers a kind of replacing specific purpose tool used in above-mentioned contact of breaker replacing options, it is characterized in that: described replacing specific purpose tool is a truncated cone, one cylinder matched with the location hole diameter of described contact arm head is set in the bottom of truncated cone, one bar stock is set at the top of truncated cone, forms the replacing specific purpose tool of contact of breaker.
Concrete, the base diameter of truncated cone described in it, is equal to or greater than the external diameter of described contact arm head.
The base diameter of truncated cone described in it, is less than the internal diameter of first, second contact supporting described.
The replacing specific purpose tool of the technical program utilizes the isosceles trapezoid cross section structure of described truncated cone, by the described end being set with the plurality of copper contact blade of fixing spring, equably to external expansion, the internal diameter in the garden that plurality of copper contact blade end positioning convex is formed, be greater than the diameter of described contact arm head, be convenient to the head annular projection that described positioning convex crosses described contact arm, ring-type location notch described in smooth embedding is in place, described contact assembly integral assembling is fixed on the head of described contact arm, local deformation is caused because of unbalance stress to avoid described spring, ensure each described copper contact sheet uniform force by this.
Compared with the prior art, advantage of the present invention is:
1. adopt replacing specific purpose tool to match, by in vitro assembling, the mode of Integral in-position, achieve the integral replacing of contact of breaker, both facilitated the assembling of contact assembly, and quality and the speed of assembling can have been ensured again, the safety of operator can be ensured, under the prerequisite ensureing assembling quality, can assemble and integral replacing contact assembly quickly and easily;
2. utilize the truncated cone of specific purpose tool, make spring uniform stressed in contact assembly assembling and process in place, avoid spring and cause local deformation because of unbalance stress, ensure copper contact sheet uniform force described in each by this, avoid contact bad, heating, form potential accident potential;
3. by changing easily and efficiently contact assembly, greatly can shorten the time that killer switch equipment state out of service carries out overhauling, reduce the economic loss that electric substation's outlet is stopped power supply, also can reduce the operation labor intensity of service worker, guarantee the personal safety in its operation process.
Accompanying drawing explanation
Fig. 1 is the structural representation of contact arm head;
Fig. 2 is the structural representation of monolithic copper contact sheet;
Fig. 3 is the structural representation of existing contact assembly and contact arm head after removing spring;
Fig. 4 is the structural representation of existing contact assembly and contact arm head after suit upper spring;
Fig. 5 is the structural representation that the present invention changes specific purpose tool;
Fig. 6 is the position relationship schematic diagram of copper contact sheet and first, second contact supporting when being not yet set with upper spring;
Fig. 7 is the position relationship schematic diagram that cover loads onto copper contact sheet and first, second contact supporting after one group of spring;
Fig. 8 is that contact assembly semi-finished product are sleeved on the structural representation changed on specific purpose tool;
Fig. 9 changes the schematic diagram that specific purpose tool inserts contact arm;
Figure 10 is the schematic diagram that contact assembly semi-finished product push contact arm head;
Figure 11 extracts the schematic diagram changing specific purpose tool out after contact assembly semi-finished product enter ring-type location notch;
Figure 12 changes the structural representation that specific purpose tool extracts rear contact assembly semi-finished product and contact arm head completely out.
In figure, 1 is contact arm, and 1-1 is ring-type location notch, and 1-2 is location hole, 1-3 is the head annular projection of contact arm, 2 is copper contact sheet, and 2-1 is positioning convex, and 2-2 is contact projection, 2-3,2-4 are first, second spring fixed gap, 3-1,3-2 are first, second contact supporting, and 4-1,4-2 are first, second fixing spring group, and 5 is truncated cone, 5-1 is cylinder, and 5-2 is bar stock.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
In Fig. 1, the head of contact of breaker arm 1 is provided with a ring-type location notch 1-1 and head annular projection 1-3, and the end face of contact arm head is also provided with location hole 1-2.
In Fig. 2, copper contact sheet first and end (in figure copper contact sheet right-hand member headed by, left end is end) be respectively arranged with first, second spring fixed gap 2-3,2-4, in the first and end of described copper contact sheet, correspondence is provided with contact projection 2-2 and positioning convex 2-1 respectively.
In Fig. 3, between plurality of copper contact blade 2, be provided with two groups of contact supportings, the first contact supporting 3-1 is wherein arranged on the end of copper contact sheet, and the second contact supporting 3-2 is arranged on the head end of copper contact sheet.
First, second above-mentioned contact supporting is circular ring plate, in the outer circumference of circular ring plate, be evenly equipped with the locating notch equal with copper contact sheet quantity, the head end of each copper contact sheet, insert/be fixed in the corresponding locating notch of described second contact supporting circular ring plate outer circumference respectively; The end of each copper contact sheet described, inserts respectively/is fixed in the corresponding locating notch of described first contact supporting circular ring plate outer circumference.
In Fig. 4, one group of complete contact assembly structure as shown in the figure, its structure is placed on two groups of contact supportings by plurality of copper contact blade 2, its overall excircle by two groups totally four fixing springs 4-1,4-2 fixed, scribble conductive silver layer on the surface of copper contact sheet to improve its electric conductivity.
In Fig. 5, the replacing specific purpose tool of the technical program comprises a truncated cone 5, arranges a cylinder 5-1 matched with the location hole 1-2 diameter of contact arm head, arrange a bar stock 5-2 at the top of truncated cone in the bottom of truncated cone.
The replacing options of the technical program is first assembled in vitro by contact assembly (" in vitro " herein refers to and leave breaker body), recycling is changed specific purpose tool and is pushed in place by contact assembly entirety, realize the integral replacing of described contact of breaker assembly, it had both facilitated the assembling of contact assembly, quality and the speed of assembling can be ensured again, the safety of operator can be ensured, under the prerequisite ensureing assembling quality, quickly and easily contact assembly is changed.
Concrete, as shown in Fig. 6 ~ Figure 12.
In Fig. 6, the end of described a slice or several pieces copper contact sheets is inserted in the locating notch on the first contact supporting, the head end of described copper contact sheet is inserted in the corresponding locating notch on the second contact supporting.
Copper contact sheet in one group of contact assembly has 15 usually, in order to the succinct of picture only depicts 3 in figure, lower same.
In Fig. 7, spring housing is contained in the periphery of each copper contact sheet, and snaps in the spring fixed gap of each copper contact sheet end in place, form contact assembly semi-finished product.
The circular open ends that each copper contact sheet end surrounds forms the half-finished end of contact assembly (lower end namely in figure), and the circular open ends that each copper contact sheet head end surrounds forms the half-finished head end of contact assembly (upper end namely in figure).
In Fig. 8, contact assembly semi-finished product are sleeved on and change on specific purpose tool 5, to described spring 4-1 is initially located in stress.
Its truncated cone changing specific purpose tool is inserted from the half-finished end of contact assembly, and its cylinder is positioned at the half-finished end side of contact assembly, and its bar stock is positioned at the half-finished first end-side of contact assembly.
In Fig. 9, will contact assembly half-finished replacing specific purpose tool 5 will be loaded with move to the head of described contact of breaker arm 1, horizontal positioned, cylinder correspondence will be inserted in the location hole of contact arm head; Make the bottom of truncated cone and the end contact of contact arm head.
In Figure 10, contact assembly semi-finished product on specific purpose tool are changed in the horizontal direction by being sleeved on, push to contact arm cephalad direction entirety, utilize the isosceles trapezoid cross section structure of truncated cone, to be set with the end of the plurality of copper contact blade of fixing spring, equably to external expansion, the internal diameter in the garden that plurality of copper contact blade end positioning convex is formed, be greater than the diameter (that is diameter of the head annular projection of aforementioned contact arm) of contact arm head, so that the positioning convex of each copper contact sheet crosses the head annular projection of contact arm, ring-type location notch described in smooth embedding is in place.
In Figure 11, continuing to push being sleeved on the contact assembly semi-finished product changed on specific purpose tool to contact arm cephalad direction entirety in the horizontal direction, making the positioning convex of described contact assembly semi-finished product each copper contact sheet end correspondence snap in the ring-type location notch of described contact arm head in place; Then, replacing specific purpose tool is extracted out in the half-finished head end opening of contact assembly.
In Figure 12, change specific purpose tool to extract out completely in the half-finished head end opening of contact assembly, positioning convex on each copper contact sheet described in whole contact assembly semi-finished product embeds in the ring-type location notch of contact arm head completely, under the pressure effect of the first fixing spring group spring, spacer ferrule fastens the head in contact arm.
Finally, successively the spring housing of described second fixing spring group is filled in the breach of each copper contact sheet head end fixing spring of contact assembly semi-finished product, forms the complete contact assembly as shown in Figure 4.
Replacing options described in technical solution of the present invention is by vitro assembling, the mode of Integral in-position, realize the integral replacing of contact of breaker, its assembling process had both facilitated the assembling of contact assembly, quality and the speed of assembling can be ensured again, be conducive to the safety ensureing operator, under the prerequisite ensureing assembling quality, integral replacing can be carried out to contact assembly quickly and easily.
Concrete, its first, second fixing spring group comprises two springs respectively.
The base diameter of its truncated cone, is equal to or greater than the external diameter of described contact arm head.
The base diameter of its truncated cone, is less than the internal diameter of first, second contact supporting described.
In concrete step of assembling and change, also another kind of execution mode can be adopted: first by the outside of two springs easily by the first contact supporting put under the state do not stressed, spring is levered up gently with copper contact sheet, make copper contact sheet under the pressure effect of spring, be fixed in the groove of contact supporting, and according to the order of sequence all the other copper contact sheets be fixed on contact supporting; Specific purpose tool will be changed insert from the half-finished end of contact assembly, spring stress is opened, the half-finished end of contact assembly forms horn mouth, half-finished for contact assembly horn mouth is aimed at the ring-type detent of contact arm, then extracted by replacing specific purpose tool, contact assembly semi-finished product are just fixed in contact arm like a cork.Finally by after two spring fittings of the second fixing spring group, end-of-job.
Owing to employing special taper aid, the holddown spring being sleeved on afterbody can evenly be opened, be convenient to the installation of copper contact sheet and fix, specific purpose tool is pyramid type simultaneously, when opening spring, make its uniform stressed, can not camber of spring be caused, avoid spring and cause local deformation because of unbalance stress, ensure copper contact sheet uniform force described in each by this, thus avoid contact bad, heating, form potential accident potential.
Owing to employing special taper aid, dissolve thrust during spring fitting, greatly reduced labour intensity, decreased human injury simultaneously.
After by this mounting auxiliary, substantially increase operating efficiency, only need 1 staff just easily can complete the integral replacing work of contact of breaker group, and whole replacing construction shortens to 8 minutes from 30 minutes.
Technical scheme of the present invention is the technological achievement that field service workman carries out " five is little " innovation and creation activity in real work.
Because the present invention is by the auxiliary installation special tool with tapering, adopt in vitro assembling, the mode of Integral in-position, both the assembling of sets of contacts had been facilitated, assembling quality and speed can be ensured again, avoid spring and cause local deformation because of unbalance stress, the safety of operator can be ensured, also can under the prerequisite ensureing assembling quality, convenient, quickly contact assembly is changed, substantially increase operating efficiency, decrease the possibility of human injury simultaneously, reduce labour intensity, greatly can shorten the time that killer switch equipment state out of service carries out overhauling, be conducive to the economic loss that the outlet of minimizing electric substation is stopped power supply.
The present invention can be widely used in maintenance, the maintenance field of vacuum circuit-breaker.
Claims (10)
1. a replacing options for contact of breaker, comprises and plurality of copper contact blade, contact supporting and fixing spring being assembled into one, and is sleeved on contact of breaker arm head portion; Wherein, described contact supporting comprises first, second contact supporting, described fixing spring comprises first, second group fixing spring, described copper contact sheet is respectively arranged with the breach of fixing spring in its first and end, the head end of described copper contact sheet is provided with contact projection, the end of described copper contact sheet is provided with positioning convex, at the head of described contact of breaker arm, be provided with a ring-type location notch, it is characterized in that:
The spring housing of described first fixing spring group is contained in the first position, contact supporting place by a workbench;
Between the spring that copper contact sheet described in first is inserted described first fixing spring group and the first contact supporting, the end of this copper contact sheet is inserted in the locating notch on the first contact supporting, and the spring of described first fixing spring group is snapped in the breach of copper contact sheet end fixing spring in place;
First contact supporting is on the position at diagonal angle with described first copper contact sheet in place, between the spring that second copper contact sheet is inserted described first fixing spring group and the first contact supporting, the end of this copper contact sheet is inserted in the locating notch on the first contact supporting, and the spring of described first fixing spring group is snapped in the breach of copper contact sheet end fixing spring in place;
Between the head end of first, second sheet copper contact sheet described, the second contact supporting described in placement, inserts in the corresponding locating notch on the second contact supporting by the head end of first, second sheet copper contact sheet;
So sequentially all copper contact sheets are inserted in the locating notch on first, second contact supporting, and make the spring of described first fixing spring group snap in the breach of each copper contact sheet end fixing spring, form contact assembly semi-finished product;
Wherein, the circular open ends that each copper contact sheet end surrounds forms the half-finished end of contact assembly, and the circular open ends that each copper contact sheet head end surrounds forms the half-finished head end of contact assembly;
The truncated cone that one longitudinal cross-section is antiparallelogram is set, one cylinder matched with the location hole diameter of described contact arm head is set in the bottom of truncated cone, one bar stock is set at the top of truncated cone, forms the replacing specific purpose tool of contact of breaker;
Described replacing specific purpose tool is inserted from the half-finished end of described contact assembly, to the spring of described first fixing spring group is initially located in stress;
To contact assembly half-finished replacing specific purpose tool will be loaded with move to the head of described contact of breaker arm, be horizontally disposed with, described cylinder correspondence will be inserted in the location hole of described contact arm head; Make the end contact of the bottom of described truncated cone and described contact arm head;
Contact assembly semi-finished product on specific purpose tool are changed in the horizontal direction by being sleeved on, push to contact arm cephalad direction entirety, make the positioning convex of described contact assembly semi-finished product each copper contact sheet end correspondence snap in the ring-type location notch of described contact arm head in place;
Described replacing specific purpose tool is extracted out in the half-finished head end opening of described contact assembly;
The spring housing of described second fixing spring group is filled in the breach of each copper contact sheet head end fixing spring of contact assembly semi-finished product successively, forms complete contact assembly;
Described replacing options is by vitro assembling, and the mode of Integral in-position, realizes the integral replacing of described contact of breaker.
2., according to the replacing options of contact of breaker according to claim 1, it is characterized in that first, second described fixing spring group comprises two springs respectively.
3. according to the replacing options of contact of breaker according to claim 1, it is characterized in that the base diameter of described truncated cone, be equal to or greater than the external diameter of described contact arm head.
4. according to the replacing options of contact of breaker according to claim 1, it is characterized in that the base diameter of described truncated cone, be less than the internal diameter of first, second contact supporting described.
5. according to the replacing options of contact of breaker according to claim 1, it is characterized in that first, second described contact supporting is circular ring plate, in the outer circumference of described circular ring plate, be evenly equipped with the locating notch equal with described copper contact sheet quantity, the head end of each copper contact sheet described, inserts respectively and is fixed in the corresponding locating notch of described second contact supporting circular ring plate outer circumference; The end of each copper contact sheet described, inserts respectively and is fixed in the corresponding locating notch of described first contact supporting circular ring plate outer circumference.
6. according to the replacing options of contact of breaker according to claim 1, it is characterized in that described replacing options utilizes the truncated cone of described replacing specific purpose tool, make described spring uniform stressed in contact assembly assembling and process in place, spring is avoided to cause local deformation because of unbalance stress, ensure copper contact sheet uniform force described in each by this, avoid contact bad, heating, form potential accident potential.
7. the replacing specific purpose tool used in contact of breaker replacing options described in claim 1, is characterized in that:
Described replacing specific purpose tool is a truncated cone, one cylinder matched with the location hole diameter of described contact arm head is set in the bottom of truncated cone, one bar stock is set at the top of truncated cone, forms the replacing specific purpose tool of contact of breaker.
8. according to replacing specific purpose tool according to claim 7, it is characterized in that the base diameter of described truncated cone, be equal to or greater than the external diameter of described contact arm head.
9. according to replacing specific purpose tool according to claim 7, it is characterized in that the base diameter of described truncated cone, be less than the internal diameter of first, second contact supporting described.
10. according to replacing specific purpose tool according to claim 7, it is characterized in that described replacing specific purpose tool utilizes the isosceles trapezoid cross section structure of described truncated cone, by the described end being set with the plurality of copper contact blade of the spring of the first fixing spring group, equably to external expansion, the internal diameter in the garden that plurality of copper contact blade end positioning convex is formed, be greater than the diameter of described contact arm head, be convenient to the head annular projection that described positioning convex crosses described contact arm, ring-type location notch described in smooth embedding is in place, described contact assembly integral assembling is fixed on the head of described contact arm, local deformation is caused because of unbalance stress to avoid the spring of described first fixing spring group, ensure each described copper contact sheet uniform force by this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410012649.5A CN103811209B (en) | 2014-01-10 | 2014-01-10 | A kind of replacing options of contact of breaker and specific purpose tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410012649.5A CN103811209B (en) | 2014-01-10 | 2014-01-10 | A kind of replacing options of contact of breaker and specific purpose tool |
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| CN103811209A CN103811209A (en) | 2014-05-21 |
| CN103811209B true CN103811209B (en) | 2016-03-30 |
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| CN105006393A (en) * | 2015-07-24 | 2015-10-28 | 宁波耀华电气科技有限责任公司 | Device for assembling plum-blossom-shaped contact |
| CN109449808A (en) * | 2018-11-06 | 2019-03-08 | 郑州华力信息技术有限公司 | Switchgear moving contact spring replaces new exclusive equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN200944355Y (en) * | 2006-09-10 | 2007-09-05 | 浙江纪元电气集团有限公司 | Special mounting tools for binding movable contact of breaker |
| CN201364836Y (en) * | 2009-03-09 | 2009-12-16 | 湖南京电开关厂 | Tooling die for movable contact of vacuum circuit breaker |
| CN201483440U (en) * | 2009-08-25 | 2010-05-26 | 广州东芝白云电器设备有限公司 | Tulip contact assembling and disassembling tool |
| CN201586958U (en) * | 2009-12-15 | 2010-09-22 | 上海市电力公司 | Switch spring replacing tool |
-
2014
- 2014-01-10 CN CN201410012649.5A patent/CN103811209B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200944355Y (en) * | 2006-09-10 | 2007-09-05 | 浙江纪元电气集团有限公司 | Special mounting tools for binding movable contact of breaker |
| CN201364836Y (en) * | 2009-03-09 | 2009-12-16 | 湖南京电开关厂 | Tooling die for movable contact of vacuum circuit breaker |
| CN201483440U (en) * | 2009-08-25 | 2010-05-26 | 广州东芝白云电器设备有限公司 | Tulip contact assembling and disassembling tool |
| CN201586958U (en) * | 2009-12-15 | 2010-09-22 | 上海市电力公司 | Switch spring replacing tool |
Also Published As
| Publication number | Publication date |
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| CN103811209A (en) | 2014-05-21 |
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