CN110310852B - Assembly process and assembly tool for arc extinguish chamber contact pressure spring - Google Patents
Assembly process and assembly tool for arc extinguish chamber contact pressure spring Download PDFInfo
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- CN110310852B CN110310852B CN201910516522.XA CN201910516522A CN110310852B CN 110310852 B CN110310852 B CN 110310852B CN 201910516522 A CN201910516522 A CN 201910516522A CN 110310852 B CN110310852 B CN 110310852B
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- arc extinguish
- extinguish chamber
- contact pressure
- pressure spring
- pull rod
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000003068 static effect Effects 0.000 claims abstract description 28
- 238000003825 pressing Methods 0.000 claims description 19
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 230000033001 locomotion Effects 0.000 claims description 7
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 230000000670 limiting effect Effects 0.000 claims description 2
- 238000004880 explosion Methods 0.000 description 45
- 230000006835 compression Effects 0.000 description 10
- 238000007906 compression Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 229910052573 porcelain Inorganic materials 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 206010024796 Logorrhoea Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
Abstract
The invention provides an arc extinguish chamber contact pressure spring assembly process and an assembly tool, wherein during assembly, the arc extinguish chamber is rotationally restrained in the circumferential direction of the arc extinguish chamber so as to determine the position of a static end threaded hole of the arc extinguish chamber, a spring cylinder is fixedly assembled with a movable contact rod of the arc extinguish chamber, a contact pressure spring and a pull rod joint are arranged in the spring cylinder, and the direction of a pull rod joint pin shaft hole is aligned, so that the position relation between the pull rod joint pin shaft hole on the pull rod joint and the static end threaded hole of the arc extinguish chamber in the circumferential direction of the arc extinguish chamber meets the design assembly requirement; the contact pressure spring is driven to compress and deform by jacking the pull rod joint, and a fixed stop piece in stop fit with the pull rod joint is fixedly assembled on the spring barrel so as to limit the contact pressure spring at the maximum release stroke position of the contact pressure spring, and the assembly of the contact pressure spring is completed. The whole assembly process can conveniently compress the contact pressure spring and ensure that the pin shaft hole of the pull rod joint and the threaded hole of the static end have a qualified position relation.
Description
Technical Field
The invention relates to an assembly process and an assembly tool for a contact pressure spring of an arc extinguish chamber.
Background
The high-voltage switch uses an arc extinguish chamber as a breaking unit, and needs to arrange a contact pressure spring assembly at a moving contact end of the arc extinguish chamber in order to reduce the contact resistance of a moving contact and a fixed contact of the arc extinguish chamber when the arc extinguish chamber is switched on and ensure the switching-on stability of the moving contact and the fixed contact. The contact pressure spring assembly comprises a contact pressure spring, a pull rod joint hinged with the pull rod and a spring cylinder fixedly assembled with a moving contact of the arc extinguish chamber, one end of the contact pressure spring is pressed on the spring cylinder, and the other end of the contact pressure spring keeps pressed on the pull rod joint.
When the contact pressure spring is assembled, at present, split assembly is adopted, the pull rod connector and the contact pressure spring are assembled with the spring cylinder firstly, and then the spring cylinder is fixedly assembled with the arc extinguish chamber. When fixing the moving contact pole of spring cylinder and explosion chamber, because the contact pressure spring has been packed into in the spring cylinder, need extend the spring cylinder bottom with the instrument through the contact pressure spring is inside and carry out fixed operation to the spring cylinder, because contact pressure spring inner space is narrow and small, the assembly degree of difficulty is great, efficiency is lower, moreover, because the quiet end screw hole of pull rod joint and explosion chamber lacks corresponding location, after spring cylinder and explosion chamber fixed assembly, can't guarantee that the quiet end screw hole of pull rod joint pin shaft hole and explosion chamber on the pull rod joint certainly satisfies the design assembly requirement at explosion chamber ascending position relation in circumference.
Disclosure of Invention
The invention aims to provide an arc extinguish chamber contact pressure spring assembling process, which aims to solve the technical problem that the position relation of a pull rod joint pin shaft hole on a pull rod joint and an arc extinguish chamber static end threaded hole in the circumferential direction of an arc extinguish chamber can not be ensured to meet the design and assembly requirements after the contact pressure spring is assembled on the arc extinguish chamber in the prior art; meanwhile, the invention also provides an arc extinguish chamber contact pressure spring assembly tool, which is used for ensuring that the position relation of a pull rod joint pin shaft hole on the pull rod joint and an arc extinguish chamber static end threaded hole in the circumferential direction of the arc extinguish chamber meets the design assembly requirements after the contact pressure spring is assembled.
In order to achieve the purpose, the assembly process of the contact pressure spring adopts the following technical scheme:
the assembly process of the contact pressure spring of the arc extinguish chamber comprises the following steps of (1) carrying out rotation restraint on the arc extinguish chamber in the circumferential direction of the arc extinguish chamber so as to determine the position of a static end threaded hole of the arc extinguish chamber in the circumferential direction of the arc extinguish chamber, enabling a spring cylinder to be fixedly assembled with a movable contact rod of the arc extinguish chamber, loading a contact pressure spring and a pull rod joint into the spring cylinder, aligning the position of a pull rod joint pin shaft hole of the pull rod joint in the circumferential direction of the arc extinguish chamber, and carrying out rotation restraint on the pull rod joint in the circumferential direction of the arc extinguish chamber so as to enable the position relation of the pull rod joint pin shaft hole on the pull rod joint and the static; (2) the contact pressure spring is driven to compress and deform by jacking the pull rod joint until the contact pressure spring is compressed and deformed to a set maximum release stroke; (3) and fixedly assembling a fixed stop piece in stop fit with the pull rod joint on the spring barrel, and further limiting the contact pressure spring at the maximum release stroke to finish the assembly of the contact pressure spring.
The invention has the beneficial effects that: when assembling the arc extinguish chamber contact pressure spring, firstly, the arc extinguish chamber is positioned, thereby determining the position of the static end threaded hole of the arc extinguish chamber in the circumferential direction of the arc extinguish chamber, and fixing the spring cylinder and the movable contact rod of the arc extinguish chamber, at the moment, because the components such as the contact pressure spring, the pull rod joint and the like are not arranged in the spring cylinder, the spring cylinder can be conveniently fixed, then the contact pressure spring and the pull rod joint are arranged in the spring cylinder, the orientation of a pull rod joint pin shaft hole of the pull rod joint is aligned, because the position of the threaded hole of the quiet end of the explosion chamber in the explosion chamber circumference has already been confirmed, at this moment, only need to carry out the alignment to the tie-rod joint round pin shaft hole of tie-rod joint for quiet end screw hole can, conveniently make the tie-rod joint round pin shaft hole on the tie-rod joint and the quiet end screw hole of explosion chamber satisfy the design assembly requirement in the ascending position relation of explosion chamber circumference. Then, the contact pressure spring is driven to compress and deform by pressing the pull rod joint, and the fixed stop piece is assembled.
The arc extinguish chamber contact pressure spring assembly tool adopts the following technical scheme:
an arc extinguish chamber contact pressure spring assembly tool comprises a tool rack; the tool rack is provided with a support for supporting and placing the arc extinguish chamber; the tool rack is provided with at least two positioning structures which extend along the vertical direction; all the positioning structures are positioning jacks or positioning bolts, or at least one positioning structure in all the positioning structures is a positioning jack and at least one positioning structure is a positioning bolt; the positioning bolt is used for being in inserting fit with a corresponding static end threaded hole in the arc extinguish chamber; the positioning jack is used for being matched with a corresponding static end threaded hole in the arc extinguish chamber in a positioning way through a middle bolt; the tool rack is also provided with an alignment rod which is guided to move and assembled along the up-down direction, and the alignment rod is used for being inserted into a pull rod joint pin shaft hole on a corresponding pull rod joint; in the circumferential direction of the arc extinguish chamber, the alignment rod and the positioning structure have a set position relationship so as to align the orientation of a pull rod joint pin shaft hole of a pull rod joint in the circumferential direction of the arc extinguish chamber, and further enable the position relationship of the pull rod joint pin shaft hole and the static end threaded hole in the circumferential direction of the arc extinguish chamber to meet the design and assembly requirements; the tool frame is provided with a jacking structure for jacking the pull rod joint downwards so as to compress the contact pressure spring in the spring cylinder to a set maximum release stroke position through the pull rod joint, so that an assembler can fixedly assemble a fixed stop piece matched with the pull rod joint in a stop manner on the spring cylinder, and further limit the contact pressure spring at the maximum release stroke position.
The invention has the beneficial effects that: when the arc extinguish chamber contact pressure spring assembling tool is used, an arc extinguish chamber is placed on the support, the positioning structure is matched with the corresponding static end threaded hole of the arc extinguish chamber to position the arc extinguish chamber, and the positioning structure is provided with at least two positioning structures, so that the arc extinguish chamber cannot rotate in the circumferential direction of the arc extinguish chamber, and the static end threaded hole of the arc extinguish chamber is positioned in the circumferential direction of the arc extinguish chamber. Meanwhile, the tool is further provided with an alignment rod which is inserted into a pull rod joint pin shaft hole in the corresponding pull rod joint, the alignment rod and the positioning structure have a set position relation, the pull rod joint pin shaft hole is aligned with the alignment rod by rotating the pull rod joint, alignment of the pull rod joint pin shaft hole can be achieved, the position relation of the pull rod joint pin shaft hole and the static end threaded hole in the circumferential direction of the arc extinguish chamber meets design requirements, meanwhile, the alignment rod is assembled on the tool frame in a guiding and moving mode in the vertical direction, therefore, the alignment rod can restrain the pull rod joint, the pull rod joint cannot rotate in the process of being pressed downwards, and the position relation of the pull rod joint pin shaft hole and the static end threaded hole in the circumferential direction of the arc extinguish chamber meets the design requirements after assembly is completed. And the arrangement of the jacking structure conveniently realizes the compression of the contact pressure spring.
Furthermore, the tool rack is provided with at least two righting plates in a reciprocating motion mode or comprises at least two righting plates in a reciprocating motion mode, each righting plate has a closing stroke enabling each righting plate to move oppositely and an opening stroke enabling each righting plate to move oppositely in the reciprocating motion process, each righting plate has a constraint position at the tail end of the closing stroke, each righting plate in the constraint position is arranged along the circumferential direction of the arc extinguish chamber and is in constraint fit with the arc extinguish chamber in the radial direction of the arc extinguish chamber to support the righting arc extinguish chamber, and each righting plate has an opening position at the tail end of the opening stroke for the arc extinguish chamber to pass through in the vertical direction.
Has the advantages that: the setting of board of righting, when the board of righting is in the restraint position, the explosion chamber is right in explosion chamber radial support, uses with the location structure cooperation, ensures that the explosion chamber can not topple over in assembling process, realizes the reliable protection to the explosion chamber. When the board of righting is in the open position, the space of righting between the board can supply the explosion chamber to pass through along upper and lower direction to dodge the explosion chamber, ensure that the setting of righting the board can not influence the convenience of explosion chamber installation on the frock.
Furthermore, all the righting plates surround a positioning hole which is used for being in adaptive insertion connection with the arc extinguish chamber when being located at the constraint position, and partial hole walls which are used for surrounding the positioning hole are respectively arranged on each righting plate.
Has the advantages that: the structure of each righting plate is used for enclosing a positioning hole, so that the arc extinguish chamber is restrained simply.
Further, a horizontal slide rail structure is arranged on the tool frame or the tool frame comprises the horizontal slide rail structure, two centering plates are arranged, the two centering plates are arranged on the horizontal slide rail and can slide oppositely and oppositely along the horizontal slide rail so as to realize the closing stroke and the opening stroke of the centering plates, and then the centering plates are assembled on the tool frame in a reciprocating manner.
Has the advantages that: the centering plate is arranged on the horizontal sliding rail, the centering plate can be simply and conveniently installed on the tool rack in a reciprocating sliding mode, in addition, the centering plates are only arranged in two, and the structure of the assembly tool is further simplified.
Further, the tool frame comprises the horizontal slide rail structure and two centering plates, wherein upper supporting columns are arranged on the two centering plates respectively, the tool frame comprises a mounting frame which is detachably assembled on the upper supporting columns, the jacking structure is arranged on the mounting frame, and a guide structure for guiding and assembling the centering rod is arranged on the mounting frame so as to realize the up-and-down guiding movement of the centering rod on the tool frame.
Has the advantages that: the mounting bracket is detachably installed on the pillar, and the jacking structure and the guide structure are both installed on the mounting bracket, so that when the arc extinguish chamber is installed, the mounting bracket, the guide structure and the jacking structure can be integrally disassembled to facilitate hoisting of the arc extinguish chamber onto the support. In addition, mounting bracket and the removable assembly of pillar, when installing and removing the explosion chamber, can dismantle the mounting bracket get off, after the mounting bracket is dismantled, right the board and can drive the pillar and move to opening the displacement, avoid the pillar to influence the hoist and mount of explosion chamber to the frock.
Further, the guide structure is a long hole extending in the up-down direction.
Has the advantages that: the guide structure is a long hole extending along the vertical direction, and the alignment rod is simply and conveniently guided.
Furthermore, the jacking structure comprises a screw rod which is screwed on the mounting frame, the screw rod extends along the vertical direction, a pressing block is assembled at the lower end of the screw rod through a revolute pair, and the screw rod applies jacking acting force to the pull rod joint through the pressing block.
Has the advantages that: the screw rod can realize the stepless adjustment that reciprocates, can control the volume of moving down of screw rod through the control of screw rod rotation volume size to this volume of moving down of controlling the briquetting, thereby realize that the roof pressure structure pushes down the accurate of contact pressure spring, and through revolute pair cooperation installation between screw rod and the briquetting, avoid the rotation action of screw rod to drive the pull rod joint rotation as far as possible.
Further, the tool rack comprises a lower support pillar arranged on the support in a supporting mode, and the horizontal sliding rail is fixedly arranged on the lower support pillar.
Has the advantages that: the horizontal sliding rail is supported and installed through the lower support column on the supporting plate, the lower support column can shield the sight of an operator as little as possible, the operator can observe the placing condition of the arc extinguish chamber on the supporting plate conveniently, and the installation action can be adjusted timely.
Further, the positioning structure is arranged on the support.
Has the advantages that: the positioning structure is integrated on the support, so that the structure of the arc extinguish chamber contact pressure spring assembly tool is simplified.
Drawings
FIG. 1 is a state diagram of an arc extinguish chamber and a contact compression spring assembly which are suitable for the arc extinguish chamber contact compression spring assembly tool in the invention after the assembly is completed;
FIG. 2 is a schematic structural diagram of a dead end threaded hole of the arc extinguish chamber in FIG. 1;
fig. 3 is a schematic structural diagram of a contact pressure spring assembly applicable to the arc extinguishing chamber contact pressure spring assembly tool of the present invention;
FIG. 4 is a schematic structural diagram of an assembly tool for a contact pressure spring of an arc extinguishing chamber in the invention;
fig. 5 is a schematic diagram of two righting plates of the arc extinguish chamber contact pressure spring assembly tool in an open position;
FIG. 6 is a schematic diagram of the arc extinguishing chamber contact compression spring assembly tool in cooperation with a corresponding arc extinguishing chamber and contact compression spring assembly;
in the figure: 1. an arc extinguishing chamber; 11. a movable contact rod; 12. a contact base; 13. a stationary end threaded hole; 2. a contact compression spring assembly; 21. a locking nut; 22. a contact pressure spring; 23. a spring case; 24. a slider; 25. a plug; 26. a fitting body; 261. a pull rod joint pin shaft hole; 3. a tool rack; 31. a support plate; 32. positioning the jack; 33. a lower pillar; 34. an upper pillar; 35. a mounting frame; 36. an alignment rod; 37. a thrust rod; 38. briquetting; 39. a horizontal slide rail; 310. a centralizing plate; 311. an arc-shaped groove.
Detailed Description
An arc extinguish chamber and a contact compression spring assembly which are suitable for assembly of the contact compression spring assembly tool are shown in figure 1, and a contact compression spring assembly 2 is arranged on a movable contact rod 11 which is in transmission connection with a movable contact at the upper end of the arc extinguish chamber 1. As shown in fig. 2, the lower end of the arc extinguish chamber 1 is provided with four stationary end threaded holes 13. The contact pressure spring assembly 2 is specifically composed and structurally illustrated in fig. 3, and the contact pressure spring assembly 2 includes a spring barrel 23, a contact pressure spring 22 sleeved in the spring barrel 23, a slider 24, a connector body 26, and a fixed stopper fixedly assembled with the spring barrel 23, wherein the slider 24 and the connector body 26 are fixedly assembled together through threaded connection to form a pull rod connector, the fixed stopper is in stopper fit with the pull rod connector, and further the contact pressure spring is limited at the maximum release stroke position of the contact pressure spring through the pull rod connector, the pull rod connector can be hinged to an insulating pull rod and can be pressed and assembled with the contact pressure spring 22, and specifically, a corresponding pull rod connector pin shaft hole 261 is formed in the connector body 26 to be hinged to a corresponding insulating pull rod through a hinge shaft.
The fixed stop piece of the contact pressure spring assembly 2 is a plug 25, the periphery of the plug 25 is provided with external threads, and correspondingly, the upper end of the spring barrel 23 is provided with internal threads matched with the external threads of the plug 25. In addition, the joint body 26 is in threaded connection with the slider 24, and a joint pull rod pin shaft hole 261 is formed in the joint body 26 and used for being hinged with a corresponding pull rod.
The invention relates to an embodiment of an assembly process of an arc extinguish chamber contact pressure spring, which specifically comprises the following steps:
(1) the method comprises the following steps of rotationally constraining an arc extinguish chamber 1 in the circumferential direction of the arc extinguish chamber 1 to determine the position of a static end threaded hole 13 of the arc extinguish chamber 1 in the circumferential direction of the arc extinguish chamber 1, fixedly assembling a spring cylinder 23 and a movable contact rod 11 of the arc extinguish chamber 1 together, installing a contact pressure spring 22 and a pull rod joint in the spring cylinder 23, aligning the position of a pull rod joint pin shaft hole 261 of the pull rod joint in the circumferential direction of the arc extinguish chamber 1, and rotationally constraining the pull rod joint in the circumferential direction of the arc extinguish chamber 1 so that the position relation between the pull rod joint pin shaft hole 261 on the pull rod joint and the static end threaded hole 13 of the arc extinguish chamber 1 in the circumferential direction of the arc extinguish chamber;
(2) the contact pressure spring 22 is driven to compress and deform by jacking the pull rod joint until the contact pressure spring 22 is compressed and deformed to a set maximum release stroke;
(3) and a fixed stop piece in stop fit with the pull rod joint is fixedly assembled on the spring barrel 23, so that the contact pressure spring 22 is limited at the maximum release stroke, and the assembly of the contact pressure spring 22 is completed.
In the assembly process, the spring cylinder 23 and the movable contact rod 11 of the arc extinguish chamber 1 are fixedly assembled together, and then the contact pressure spring 22 and the pull rod joint are installed in the spring cylinder 23, so that the assembly is convenient.
Moreover, need rotate the restraint to explosion chamber 1 in 1 week of explosion chamber, and the orientation of the pull rod joint round pin shaft hole 261 of alignment pull rod joint in 1 week of explosion chamber and rotate the restraint to the pull rod joint, and then before the top pressure pull rod joint, make the quiet end screw hole 13 on pull rod joint round pin shaft hole 261 and the explosion chamber 1 of pull rod joint correspond in 1 week of explosion chamber, at the top pressure in-process, make the pull rod joint under the restraint condition can not appear rotating, guarantee that the quiet end screw hole 13 on pull rod joint round pin shaft hole 261 and the explosion chamber 1 corresponds all the time in the assembly process, make the assembly accomplish the back, satisfy the design assembly requirement.
In the assembly process provided by the embodiment, the arc extinguish chamber 1 and the pull rod joint are positioned in the circumferential direction of the arc extinguish chamber 1, and the spring cylinder 23 is fixedly assembled with the movable contact rod of the arc extinguish chamber 1, so that not only is the final assembly precision conveniently ensured, but also the contact pressure spring 22 and the pull rod joint are conveniently assembled in the spring cylinder 23, and a fixed stop piece is also conveniently fixedly assembled on the spring cylinder 23, so that the assembly of the contact pressure spring is completed.
Actually, in step one, circumferential restraint may be performed on the arc extinguish chamber 1, or the spring barrel 23 and the movable contact rod 11 of the arc extinguish chamber 1 may be fixed and assembled first, and may be determined according to the size of the actual arc extinguish chamber 1, if the arc extinguish chamber 1 has a large size, the arc extinguish chamber 1 may be positioned first, and then the spring barrel 23 is assembled on the arc extinguish chamber 1, and if the arc extinguish chamber 1 has a small size, the spring barrel 23 and the movable contact rod 11 may be directly fixed and assembled, and then circumferential restraint positioning is performed on the arc extinguish chamber 1. The invention provides an embodiment 1 of a contact pressure spring assembly tool capable of realizing the assembly process, and as shown in fig. 4, the contact pressure spring assembly tool comprises a tool frame 3, an alignment rod 36 assembled on the tool frame 3 and a jacking structure. The alignment rod 36 is used for being in inserted fit with the pull rod joint pin shaft hole 261 on the corresponding joint body 26, and the pressing structure is used for applying pressure to the contact pressure spring assembly 2 so as to compress the contact pressure spring 22.
Further, the tool rack 3 comprises a support for supporting and placing the arc extinguish chamber 1 and a positioning structure for positioning the arc extinguish chamber 1. Wherein, location structure extends along upper and lower direction, fixes a position explosion chamber 3 with the cooperation of quiet end screw hole 13 on the explosion chamber 1, in order to prevent that explosion chamber 3 from taking place to rotate at the in-process of contact pressure spring assembly, and location structure is provided with two at least. The alignment rod 36 is assembled on the tool rack 3 along the vertical direction in a guiding and moving manner, and is used for positioning the joint body 26, preventing the joint body 26 from rotating along the circumferential direction of the arc extinguish chamber 1 in the assembling process, and the alignment rod 36 and the positioning structure have a set position relation, so that the requirement of meeting the position relation of the pull rod joint pin shaft hole 261 and the static end threaded hole 13 in the circumferential direction of the arc extinguish chamber 1 is met after the assembly is completed.
In this embodiment, the support is a plate-shaped structure, and the positioning structure is disposed on the support. Specifically, the support is circular shape backup pad 31, and location structure is for seting up the location jack 32 in backup pad 31 middle part, during the use, sets up the locating pin between explosion chamber 1 and backup pad 31, and the one end of locating pin is inserted and is established in quiet end screw hole 13, and other one end is inserted and is established in location jack 32, realizes from this that explosion chamber 1 is the location on the horizontal direction, prevents that explosion chamber 1 from the horizontal slip breaks away from backup pad 31 and lead to its porcelain shell be injured or touch garrulous when receiving external force interference. In order to prevent the arc extinguish chamber 1 from rotating, four positioning insertion holes 21 are arranged, and the arc extinguish chamber can be rotationally restrained in the circumferential direction of the arc extinguish chamber after assembly, so that the position of the static end threaded hole 13 of the arc extinguish chamber 1 is determined in the circumferential direction of the arc extinguish chamber.
In other embodiments, the number of positioning insertion holes can be more than four for enhancing the positioning effect, and of course, only two or three positioning insertion holes can be provided for the convenience of production and installation. Regarding location structure's structural style, in other embodiments, location structure still can be for setting up the location bolt in the backup pad, and the location bolt here is used for with the cooperation of pegging graft of the corresponding quiet end screw hole on the explosion chamber to carry on spacingly to the explosion chamber, two are no less than to the quantity of location bolt. Certainly, because location structure has more than two, can be with at least one location structure design for the location jack, and with at least one location structure design for the location bolt, the location bolt of here be used for with the corresponding quiet end screw hole grafting cooperation on the explosion chamber, and the location jack then is used for through middle bolt and the corresponding quiet end screw hole location fit on the explosion chamber, location jack and location bolt cooperation can realize the circumference restraint to the explosion chamber.
To the structure of support, in other embodiments, the support can also be non-platelike structure, for example, the support can also be latticed support frame, this moment, location structure no longer sets up on the support, but set up location structure on the frock frame specially, for example, set up the location bolt on the frock frame, the space that the location bolt passed in the middle of the support frame upwards overhangs, with quiet end screw hole cooperation, or the frock frame is including setting up the locating plate at the support frame lower extreme, set up the locating hole that corresponds with quiet end screw hole on the locating plate, fix a position the explosion chamber through inserting between quiet end screw hole and locating hole and establishing the locating pin.
Further, in order to prevent the arc extinguish chamber 1 from toppling over in the assembling process of the contact pressure spring, the tool rack 3 further comprises at least two righting plates capable of moving in a reciprocating mode, each righting plate has a closing stroke enabling each righting plate to move in the opposite direction in the reciprocating sliding process of the righting plate, and an opening stroke enabling each righting plate to move in the opposite direction, each righting plate has a constraint position at the tail end of the closing stroke, each righting plate in the constraint position is arranged along the circumferential direction of the arc extinguish chamber 1 and is in constraint fit with the arc extinguish chamber 1 in the radial direction of the arc extinguish chamber 1 to support the righting arc extinguish chamber 1, and each righting plate has an opening position at the tail end of the opening stroke to enable the arc extinguish chamber 1 to support the righting arc extinguish chamber 1 in. When all the righting plates are in the constraint positions, the righting plates are enclosed to form positioning holes which are used for being in adaptive insertion connection with the movable contact rod of the arc extinguish chamber, and partial hole walls used for enclosing the positioning holes are respectively arranged on the righting plates.
As shown in fig. 4 in detail, the tool rack 3 includes two openable and closable centering plates 310, and in order to achieve the installation of the centering plates 310 on the tool rack 3 in a reciprocating manner, the tool rack 3 further includes horizontal slide rails, in this embodiment, the tool rack 3 includes two horizontal slide rails 39 horizontally arranged in front and back, and each centering plate 310 is respectively engaged with the front and back horizontal slide rails, so that the two centering plates 310 can slide back and forth along the horizontal slide rails.
The opposite ends of the two righting plates 310 are both provided with arc-shaped grooves 311. When the two righting plates 310 are in the restraining position, the arc-shaped grooves 311 on the opposite ends of the two righting plates 310 are buckled with each other to form a positioning hole matched with the moving contact rod 11 of the arc-extinguishing chamber 1, so as to radially support and right the arc-extinguishing chamber 1. Certainly, when the clamping force between two righting plates is great, the situation that the arc extinguishing chamber cannot be toppled over can be ensured by utilizing the friction force between the righting plates and the arc extinguishing chamber, and the arc-shaped grooves can not be arranged on the two righting plates. The two horizontal slide rails are fixed on the support plate 31 by four lower support posts 33. To the cooperation position of righting board and explosion chamber, in other embodiments, can also make the porcelain shell cooperation of righting board and explosion chamber, in order to prevent to right the board and cause the damage to the porcelain shell, the rubber pad is established in the position of righting board and porcelain shell contact with additional.
In other embodiments, only one horizontal sliding rail can be arranged, the two righting plates are assembled on the horizontal sliding rail in an up-and-down anti-dropping mode, one end of each righting plate is assembled on the horizontal sliding rail, and the other end of each righting plate horizontally overhangs, so that the horizontal sliding rail cannot interfere with the arc extinguish chamber. Certainly, also can set up more than two horizontal slide rails, each slide rail is radial arrangement along explosion chamber circumference, and the distance between each slide rail looks remote site satisfies the explosion chamber and can pass through along upper and lower direction, corresponds every slide rail and all installs one and right the board, when each right the board and be in righting the position, each right the board towards the one end of explosion chamber for horizontal slide rail overhang and with the movable contact pole cooperation of explosion chamber to the explosion chamber is right in the support.
In order to install the pressing structure, the two righting plates 310 are respectively provided with an upper pillar 34, the upper end of the upper pillar 34 is detachably provided with a mounting frame 35, and the pressing structure is arranged on the mounting frame 35. In this embodiment, the pressing structure includes a screw rod 37 rotatably mounted on the mounting frame 35, the screw rod 37 extends in the vertical direction, a pressing block 38 is mounted at the lower end of the screw rod 37 through a rotating pair, and specifically, the screw rod 37 and the pressing block 38 are matched through a thrust bearing. When the screw 37 is rotated relative to the mounting bracket to move the screw 37 downward, the screw 37 applies a pressing force to the tie rod joint through the pressing piece 38. The mounting bracket 35 is mounted on the corresponding upper support pillar 34 of the two righting plates 310, so that the mounting bracket 35 can lock the two righting plates 310 through the upper support pillar 34, so that the two righting plates 310 cannot be freely separated, and thus the arc extinguishing chamber 1 is stably and reliably righted.
Both ends still have the riser structure of downwardly depending about mounting bracket 35, and two structural correspondences of riser are provided with the guide structure who is used for leading alignment rod 36, and in this embodiment, the guide structure is the slot hole of following the upper and lower direction extension of seting up on the riser structure. In other embodiments, the guide structure can also be an elongated slot which is opened and closed on the vertical plate structure and extends along the vertical direction, at least one of the two vertical plate structures can be detachably mounted on the mounting frame, when the centering rod is mounted in the guide structure, at least one vertical plate structure is detached, and after the centering rod is mounted in the guide structure, the vertical plate structure is fixed on the mounting frame.
In this embodiment, the support plate 31, the lower support column 33, the horizontal slide rail 39, the righting plate 310, and the mounting frame 35 constitute the tool rack 3. In other embodiments, to simplify the structure, the mounting frame is not fixed on the righting plate through the upper pillar, but is directly fixed on the supporting plate through the pillar, and the horizontal guide rail is fixed at a proper height of the pillar. At the moment, the bottom plate, the upright post and the mounting frame form a tool frame, and the horizontal guide rail and the righting plate are arranged on the tool frame. Of course, if the arc extinguish chamber is installed on the bottom plate, the arc extinguish chamber can be ensured not to topple over in the installation process through the self gravity and the restraint of the positioning structure without the arrangement of the righting plate.
When the arc extinguish chamber contact pressure spring assembly tool is used for assembling the contact pressure spring, the operation procedures are as follows:
firstly, the mounting frame 35 is detached, then the two centralizing plates 310 are pulled apart in a reverse motion manner, so as to form a channel for the arc extinguish chamber 1 to pass through in the up-down direction between the two centralizing plates 310, the arc extinguish chamber 1 is lifted by using a crane, positioning pins are inserted into at least two static end threaded holes 13 at the bottom of the arc extinguish chamber 1, the arc extinguish chamber 1 is installed in a tool in the vertical direction and is placed on the supporting plate 31, the positioning pins are inserted into the corresponding positioning insertion holes 32, the spring cylinder 23 and the movable contact rod 11 of the arc extinguish chamber 1 are fixedly assembled together, as shown in fig. 5, then the two centralizing plates 310 are pushed to be closed to reach a centralizing position, and the arc extinguish chamber 1 is radially supported and centered. The mounting plate 35 is fixed on the upper support column 34, the alignment rod 36 passes through the tie-rod joint pin shaft hole 361 and is mounted in the guide structure, and in the passing process, the tie-rod joint 36 needs to be rotated to enable the tie-rod joint pin shaft hole 361 to be aligned with the alignment rod 36, so that the alignment of the tie-rod joint pin shaft hole 361 is realized, and the position relation between the tie-rod joint pin shaft hole 361 on the tie-rod joint 36 and the static end threaded hole 13 of the arc extinguish chamber 1 in the circumferential direction of the arc extinguish chamber 1 meets the design and assembly requirements, as shown in fig. 6.
And secondly, rotating the screw rod 37, moving the screw rod 37 downwards and pressing the pull rod joint through the pressing block 38, and moving the pull rod joint downwards to compress the contact pressure spring 22 until the contact pressure spring is compressed and deformed to a set maximum release stroke.
Thirdly, the plug 25 is connected with the spring barrel 23 in a screwing mode, the contact pressure spring 22 is limited at the maximum release stroke, and the contact pressure spring assembly is completed.
Based on such frock structure and assembly process, when assembling contact pressure spring 22, owing to fix a position static end screw hole 13 to the explosion chamber 1 earlier to confirm static end screw hole 13 is at the ascending position of explosion chamber 1 circumference, consequently, follow-up only need to carry out the alignment to pull rod joint pin shaft hole 261, simultaneously, the alignment of pull rod joint pin shaft hole 261 has been made things convenient for to alignment pole 36 that sets up. Moreover, since the alignment rod 36 is guided and moved in the vertical direction, the alignment rod 36 can also position the tie rod joint and the tie rod joint pin shaft hole 261 during the assembly process, and it is ensured that the tie rod joint pin shaft hole 261 and the dead-end threaded hole 13 still have a predetermined positional relationship in the arc extinguishing chamber circumferential direction after the assembly is completed. Further, during assembly, the spring barrel 23 is fixed on the movable contact rod 11 of the arc extinguish chamber 1, and the operation space for screwing the locking nut 21 is relatively large, so that the spring barrel 23 is convenient to fix. The arrangement of the jacking mechanism facilitates the subsequent compression of the contact pressure spring 22.
The embodiment 2 of the tooling for assembling the contact pressure spring of the arc extinguish chamber is different from the embodiment 1 in that in the embodiment 1, the jacking structure comprises a screw rod and a pressing block, the screw rod is screwed on the mounting frame, in the embodiment, the mounting frame, the screw rod and the pressing head are not arranged, but an air cylinder is directly mounted on the tooling frame, and a push rod of the air cylinder only does telescopic motion without rotating, so that the lower end of the push rod is directly jacked and matched with a pull rod joint without arranging the pressing block. In this case, in order to vertically guide the alignment rod, a tool holder is used as a base, and a guide structure for guiding the alignment rod is provided on the tool holder.
Different from embodiment 1, in embodiment 3 of the assembly tool for the contact pressure spring of the arc extinguish chamber, structures such as the support plate, the slide rail and the mounting plate of the tool frame are connected through the upper support column and the lower support column in embodiment 1, and the support plate, the mounting frame and the horizontal slide rail of the tool frame are all fixed on a vertical plate in this embodiment.
The embodiment 4 of the arc extinguishing chamber contact pressure spring assembling tool is different from the embodiment 1 in that the righting plates in the embodiment 1 are opened and closed in a sliding mode through the sliding rails, and in the embodiment, the two righting plates are coaxially hinged to a tool frame along a vertical axis so that the two righting plates form a scissors-shaped structure capable of being opened and closed. At this time, the horizontal slide rail is not required to be installed.
Claims (10)
1. An arc extinguish chamber contact pressure spring assembly process is characterized by comprising the following steps:
(1) the arc extinguish chamber is rotationally constrained in the circumferential direction of the arc extinguish chamber, so that the position of a static end threaded hole formed in the lower end of the arc extinguish chamber is determined in the circumferential direction of the arc extinguish chamber, a spring cylinder is fixedly assembled with a movable contact rod positioned at the upper end of the arc extinguish chamber, a contact pressure spring and a pull rod joint are arranged in the spring cylinder, the position of a pull rod joint pin shaft hole of the pull rod joint is aligned in the circumferential direction of the arc extinguish chamber, and the pull rod joint is rotationally constrained in the circumferential direction of the arc extinguish chamber, so that the position relation between the pull rod joint pin shaft hole on the pull rod joint and the static end threaded hole of the arc extinguish;
(2) the contact pressure spring is driven to compress and deform by jacking the pull rod joint until the contact pressure spring is compressed and deformed to a set maximum release stroke;
(3) and fixedly assembling a fixed stop piece in stop fit with the pull rod joint on the spring barrel, and further limiting the contact pressure spring at the maximum release stroke to finish the assembly of the contact pressure spring.
2. An arc extinguish chamber contact pressure spring assembly tool is characterized by comprising a tool frame;
the tool rack is provided with a support for supporting and placing the arc extinguish chamber;
the tool rack is provided with at least two positioning structures which extend along the vertical direction;
all the positioning structures are positioning jacks or positioning bolts, or at least one positioning structure in all the positioning structures is a positioning jack and at least one positioning structure is a positioning bolt, the positioning bolts are used for being in inserting fit with corresponding static end threaded holes in the arc extinguish chamber, and the positioning jacks are used for being in positioning fit with the corresponding static end threaded holes in the arc extinguish chamber through middle bolts;
the tool rack is also provided with an alignment rod which is guided to move and assembled along the up-down direction, and the alignment rod is used for being inserted into a pull rod joint pin shaft hole on a corresponding pull rod joint;
in the circumferential direction of the arc extinguish chamber, the alignment rod and the positioning structure have a set position relationship so as to align the orientation of a pull rod joint pin shaft hole of a pull rod joint in the circumferential direction of the arc extinguish chamber, and further enable the position relationship of the pull rod joint pin shaft hole and the static end threaded hole in the circumferential direction of the arc extinguish chamber to meet the design and assembly requirements;
the tool frame is provided with a jacking structure for jacking the pull rod joint downwards so as to compress the contact pressure spring in the spring cylinder to a set maximum release stroke position through the pull rod joint, so that an assembler can fixedly assemble a fixed stop piece matched with the pull rod joint in a stop manner on the spring cylinder, and further limit the contact pressure spring at the maximum release stroke position.
3. The arc extinguish chamber contact pressure spring assembling tool according to claim 2, wherein the tool frame is provided with at least two righting plates in a reciprocating manner or comprises at least two righting plates in a reciprocating manner, each righting plate has a closing stroke for enabling the righting plates to move in opposite directions in the reciprocating process of the tool frame and an opening stroke for enabling the righting plates to move in opposite directions, each righting plate has a constraint position at the tail end of the closing stroke, each righting plate in the constraint position is arranged along the circumferential direction of the arc extinguish chamber and is in constraint fit with the arc extinguish chamber in the radial direction of the arc extinguish chamber to support and right the arc extinguish chamber, and each righting plate has an opening position at the tail end of the opening stroke for the arc extinguish chamber to pass through in the up-down direction.
4. The arc extinguish chamber contact pressure spring assembly tool according to claim 3, wherein all the centering plates surround a positioning hole for adaptive insertion with the arc extinguish chamber when in the constraint position, and each centering plate is provided with a part of hole wall for surrounding the positioning hole.
5. The arc extinguish chamber contact pressure spring assembling tool as claimed in claim 4, wherein a horizontal slide rail structure is arranged on the tool frame or the tool frame comprises a horizontal slide rail structure, two centralizing plates are arranged on the horizontal slide rail and can slide along the horizontal slide rail in the opposite directions and in the opposite directions so as to realize the closing stroke and the opening stroke of the centralizing plates, and then the centralizing plates are assembled on the tool frame in a reciprocating manner.
6. The arc extinguish chamber contact pressure spring assembly tool according to claim 5, wherein the tool rack comprises the horizontal slide rail and two centering plates, upper supporting columns are arranged on the two centering plates respectively, the tool rack comprises a mounting rack detachably mounted on the upper supporting columns, the jacking structure is arranged on the mounting rack, and a guide structure for guiding and assembling the centering rod is arranged on the mounting rack so as to realize the vertical guide movement of the centering rod on the tool rack.
7. The arc extinguish chamber contact pressure spring assembling tool according to claim 6, wherein the guide structure is a long hole extending in the up-down direction.
8. The arc extinguish chamber contact pressure spring assembly tool according to claim 6, wherein the jacking structure comprises a screw rod which is screwed on the mounting frame, the screw rod extends in the vertical direction, a pressing block is assembled at the lower end of the screw rod through a rotating pair, and the screw rod applies jacking acting force to the pull rod joint through the pressing block.
9. The arc extinguish chamber contact pressure spring assembly tool according to claim 5, wherein the tool rack comprises a lower support pillar supported on a support, and the horizontal slide rail is fixedly arranged on the lower support pillar.
10. An arc extinguish chamber contact pressure spring assembling tool according to any one of claims 2 to 9, wherein the positioning structure is arranged on the support.
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| CN201910516522.XA CN110310852B (en) | 2019-06-14 | 2019-06-14 | Assembly process and assembly tool for arc extinguish chamber contact pressure spring |
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| CN201910516522.XA CN110310852B (en) | 2019-06-14 | 2019-06-14 | Assembly process and assembly tool for arc extinguish chamber contact pressure spring |
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| CN110310852A CN110310852A (en) | 2019-10-08 |
| CN110310852B true CN110310852B (en) | 2021-02-23 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113035610A (en) * | 2019-12-09 | 2021-06-25 | 河南平高电气股份有限公司 | Single-pole assembly tool for isolating switch |
| CN113009190B (en) * | 2019-12-19 | 2024-04-05 | 河南平芝高压开关有限公司 | Single-branch insulation pull rod test tool and test equipment for GIS |
| CN113290367B (en) * | 2021-04-30 | 2022-07-08 | 深圳市迪尔泰设备有限公司 | Motor assembling process, press-fitting device and assembling production line |
| CN114714085B (en) * | 2022-05-19 | 2023-11-21 | 上海美荃科技有限公司 | Automatic assembly system and assembly method for switch contact spring |
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| US4077114A (en) * | 1975-03-22 | 1978-03-07 | Kabushiki Kaisha Meidensha | Vacuum power interrupter |
| CN103123884A (en) * | 2013-01-24 | 2013-05-29 | 平高集团有限公司 | Contact spring device |
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