CN208521846U - Breaker - Google Patents

Abstract

The utility model provides a kind of breaker, including circuit breaker frame, insulated pull rod and operating mechanism, operating mechanism includes main transmission connecting lever, with the connector of main transmission connecting lever transmission connection, the connector is connected with insulated pull rod and is moved together with insulated pull rod, connector and insulated pull rod are along the extending direction interval setting of insulated pull rod and opposite one end is provided with the screw thread rod segment or screw thread hole section that rotation direction is identical but screw pitch is different, breaker further includes regulating part, regulating part both ends are coaxially arranged be respectively used to be threadedly coupled with the screw thread rod segment or screw thread hole section first, two threaded connection sections, the screw pitch of first threaded connection section is different from the screw pitch of the second threaded connection section and has the difference of setting, the difference is used to make the relative displacement for generating setting between connector and insulated pull rod when rotating regulating part.Due to need to only rotate regulating part, screw pitch difference easy to operate, and passing through setting is adjusted, relative shift between the two can be accurately controlled.

Description

Breaker

Technical field

The utility model relates to a kind of breakers.

Background technique

In mesohigh transmission & distribution electrical domain, switchgear using very extensive, breaker is the important switch member in switchgear Part.Breaker guarantees its function by its multinomial mechanical property parameter as element most important in switchgear.Breaker Often there is the case where difficult debugging as very important combined floodgate characterisitic parameter in closing rebound, by the comparison to different institutions, It was found that without guiding the kind of drive breaker the more difficult debugging of closing rebound, but it is advantageous that transmission crank arm directly with Insulated pull rod is hinged, and drive mechanism is relatively simple, thus the excess of stroke (after contact is closed completely, move or static contact institute it is mobile away from From) adjust it is more convenient.And the breaker with the guiding kind of drive, closing rebound are easier to debug, but need that band is arranged Have the guide plate of vertical pilot hole, with guide pin and guiding connector with the cooperation of pilot hole guiding movement, therefore structure Complexity causes the excess of stroke to adjust relatively difficult, or even pole or insulating cylinder is needed to disassemble from circuit breaker frame, Production efficiency is relatively low, therefore mostly uses the drive mechanism without guiding now.

Authorization Notice No. is that the Chinese utility model patent of CN204303589U discloses a kind of continuously adjustable outdoor column Upper switch is equivalent to a kind of breaker, which includes three-phase solid-sealed pole, and the insulated pull rod of each pole passes through biography Dynamic connecting lever and main shaft are sequentially connected, and main shaft is driven by the dynamic core bar of connecting lever and permanent magnet mechanism (i.e. operating mechanism) to be connected It connects, wherein the cross section of main shaft is regular polygon, and one end of transmission crank arm is offered with the cooperation of main shaft rotation stop just Polygonal hole, the other end are hinged with rotating block (i.e. connector), and the lower end of the insulated pull rod of pole passes through connector, and Two sides up and down in insulated pull rod positioned at connector are mounted on nut.The breaker uses the kind of drive without guiding, By rotating upper and lower nut when use, the relative position of connector and insulated pull rod is adjusted, and then adjust the position of transmission crank arm It sets, the excess of stroke is adjusted with this.

This breaker needs to rotate upper and lower nut respectively when adjusting the excess of stroke, cumbersome, and breaker is closing During lock, insulated pull rod does not act vertically, but along circular motion under the drive of transmission crank arm, it can lead in this way Only a part contact in a flash of the dynamic and static contact of arc-chutes is caused to give breaker mechanical to be easy to appear closing rebound The debugging of characteristic brings difficulty.

Utility model content

The purpose of this utility model is to provide a kind of opposite positions that can conveniently, accurately adjust connector and insulated pull rod The breaker set.

To achieve the above objectives, the present invention adopts the following technical solutions:

Breaker, including circuit breaker frame, insulated pull rod and operating mechanism, operating mechanism include main transmission connecting lever and master The connector of transmission crank arm transmission connection, the connector are connected and are moved together with insulated pull rod, the connection with insulated pull rod Part and insulated pull rod along the extending direction interval setting of insulated pull rod and opposite one end be provided with that rotation direction is identical but screw pitch not Same screw thread rod segment or screw thread hole section, breaker further includes regulating part, and regulating part both ends, which are coaxially arranged with, to be respectively used to and connect The first, second threaded connection section that screw thread rod segment or screw thread hole section on part and insulated pull rod are threadedly coupled, first is threadedly coupled The screw pitch of section is different from the screw pitch of the second threaded connection section and has the difference of setting, and the difference when rotating regulating part for making The relative displacement of setting is generated between connector and insulated pull rod.

The beneficial effect of the technical solution of above-mentioned breaker is: due to the presence of screw pitch difference, regulating part is turning It, can be relative to connector and the difference of axial displacement caused by insulated pull rod, with regulating part in the case where dynamic certain angle Rotation, inevitably result in relative displacement is generated between connector and insulated pull rod with make up the difference namely connector and The spacing that can not be kept fixed again between insulated pull rod, thus adjustable spacing between the two.Due to need to only rotate tune Part is saved, therefore adjusting is easy to operate, and make that there is therebetween the screw pitch difference set by design, so that it may changed It calculates in the case where regulating part rotates special angle, the relative shift that can be produced therebetween, so as to accurate Control the spacing between connector and insulated pull rod.

Further, in order to which the movement to insulated pull rod is oriented to, guarantee the vertical motion of insulated pull rod, avoid the occurrence of Closing rebound phenomenon, the connector include connector and the first pin shaft through connector, are provided with edge on main transmission connecting lever The first long guiding hole that front-rear direction extends, the end of the first pin shaft pass through the first long guiding hole and lead in the first long guiding hole To movement, guide plate is provided in circuit breaker frame on the outside of main transmission connecting lever, is provided on guide plate for being sold to first Axis moves up and down the guide frame being oriented to.

Further, setting guide frame, the guide frame are the vertically side being provided on guide plate for convenience To the second long guiding hole of extension, the end of the first pin shaft is threaded through in the second long guiding hole.

Further, connector and insulated pull rod are manufactured in order to facilitate processing, connector and the opposite one end of insulated pull rod What is be arranged is screw thread rod segment, and the regulating part is Adjusting bolt Adjusting screw, and first, second threaded connection section is threaded hole.

Further, convenient opposite therebetween for the ease of the spacing between accurate adjusting connector and insulated pull rod The conversion of displacement, the screw pitch of screw thread rod segment is twice of the screw pitch of screw thread rod segment on connector in insulated pull rod.

Either the screw pitch of screw thread rod segment or screw thread hole section is screw thread rod segment or screw thread hole section on connector in insulated pull rod Twice of screw pitch.

Further, it in order to facilitate the installation of main transmission connecting lever, is additionally provided on guide plate for hinged main transmission connecting lever Hinge hole.

Further, turn regulating part for convenience, guarantee to adjust stability, circuit breaker frame include made of bending and Frame bent plate with mounting plane, is fixedly installed with pole on the mounting plane of frame bent plate, on frame bent plate with it is solid The junction of sealed pole is provided with perforation, and regulating part passes through the perforation and upper end is extend into inside pole, lower end is protruded into It offers and protrudes into convenient for tool to turn the handle hole of regulating part to inside circuit breaker frame, in circuit breaker frame, regulating part Lower section exposes from handle hole.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of one embodiment of breaker in the utility model；

Fig. 2 is the partial enlarged view in Fig. 1 (Adjusting bolt Adjusting screw is cutting state)；

Fig. 3 is the partial enlarged view (the non-cutting of Adjusting bolt Adjusting screw) in Fig. 1；

Fig. 4 is the side view of breaker in Fig. 1；

Fig. 5 is the structural schematic diagram of insulated pull rod in breaker；

Fig. 6 is the structural schematic diagram of connector in breaker；

Fig. 7 is the structural schematic diagram of Adjusting bolt Adjusting screw in breaker；

Fig. 8 is the cross-sectional view of Fig. 7；

Fig. 9 is the structural schematic diagram of guide plate in breaker；

Figure 10 is the structural schematic diagram of main transmission connecting lever in breaker.

In figure: 1. circuit breaker frames；1-1. frame bent plate；111. mounting plane；1-2. bottom plate；1-3. side plate；1-4. behaviour Make hole；2. pole；3. insulated pull rod；31. the first screw thread rod segment；4. Adjusting bolt Adjusting screw；41. the first screw thread hole section；42. second Screw thread hole section；5. main transmission connecting lever；51. the first long guiding hole；52. the second hinge hole；53. third hinge hole；6. guide plate； 61. the second long guiding hole；62. the first hinge hole；7. the first pin shaft；8. connector；81. hinge segment；82. the second screw thread rod segment； 83. through hole；9. block card；10. the second pin shaft；12. third pin shaft；13. the first connecting lever；14. the second connecting lever；15. the 4th pin shaft； 16. breaker main shaft.

Specific embodiment

One embodiment of breaker is as shown in Fig. 1 ~ Figure 10 in the utility model, including circuit breaker frame 1, be mounted on it is disconnected Operating mechanism (not shown) in road device frame 1, circuit breaker frame 1 include frame bent plate 1-1, bottom plate 1-2, side plate 1-3, Wherein frame bent plate 1-1 is made of bending, it is fixedly installed with three on mounting plane 111 with mounting plane 111 after bending Phase pole 2 is provided with perforation with the junction of pole 2 on frame bent plate 1-1.Each pole 2 includes insulation Pull rod 3, the lower part of insulated pull rod 3 are provided in first screw thread rod segment 31(Fig. 5 that axis vertically extends and are not drawn into screw thread Spin line).One end of main transmission connecting lever 5 and breaker main shaft 16 are sequentially connected, the other end be sequentially connected with for insulated pull rod 3 The connector of connection, the connector move together with insulated pull rod, and in this embodiment, which is the connector of split settings 8 and first pin shaft 7, the first pin shaft 7 connect with main transmission connecting lever 5, connector 8 includes the hinge segment 81 of one and extends upward Second screw thread rod segment 82, the first pin shaft 7 runs through hinge segment 81, therefore through hole 83 is provided in hinge segment 81.

First screw thread rod segment 31 is identical with the thread rotary orientation of the second screw thread rod segment 82 but screw pitch is different, specifically the first screw thread The screw pitch of rod segment 31 is greater than the screw pitch of the second screw thread rod segment 82, can preferably be arranged to the screw pitch of the first screw thread rod segment 31 In twice of the screw pitch of the second screw thread rod segment 82.First screw thread rod segment 31 and the second screw thread rod segment 82 interval and coaxial arrangement, two Be threaded with Adjusting bolt Adjusting screw 4 outside person simultaneously, thus the internal thread hole of Adjusting bolt Adjusting screw 4 be also that thread rotary orientation is identical but screw pitch not Same two sections, are the first screw thread hole section 41 and the second screw thread hole section 42 respectively, and the screw pitch of the first screw thread hole section 41 is big In the screw pitch of the second screw thread hole section 42.

The outer peripheral surface of Adjusting bolt Adjusting screw 4 is in hexagonal prism shape, is operated convenient for spanner, and Adjusting bolt Adjusting screw 4 passes through on frame bent plate 1-1 Perforation, and the upper end is extend into inside pole, lower end is extend into inside circuit breaker frame, rotates Adjusting bolt Adjusting screw for convenience 4, it is opened up on rear side of circuit breaker frame there are three handle hole 1-4.Specifically, the rear end of the mounting plane 111 of frame bent plate 1-1 Downward bending has extension board section, likewise, the rear end of bottom plate 1-2 is also bent with extension board section, two extension board section docking upwards The rear side plate face of circuit breaker frame is collectively constituted, recess directed downwardly, bottom plate 1-2 are offered in the extension board section of frame bent plate 1-1 Extension board section on offer recess upward, handle hole 1-4 is exactly to be formed after two recesses docking.

When adjusting, spanner protrudes into rotation Adjusting bolt Adjusting screw 4 in frame from handle hole 1-4, since upper and lower screw pitch is different, that is, adjusts When swivel nut 4 rotates a circle, the axial movement distance relative to the first screw thread rod segment 31 and the second screw thread rod segment 82 is different, can generate Difference inevitably results in the spacing that the first screw thread rod segment 31 and the second screw thread rod segment 82 can not be kept fixed again in this way, and can send out Raw relative motion allows Adjusting bolt Adjusting screw rotating upwardly and downwardly freely to make up the difference of generation, and if screw pitch is identical up and down If, then being just only that Adjusting bolt Adjusting screw 4 moves up and down itself, without causing the first screw thread rod segment 31 and the second screw thread rod segment 82 relative motion.

The angle rotated due to the main transmission connecting lever 5 that the total kilometres of breaker are certain, i.e., each on/off switch operations Degree is constant, therefore the breaker for this insulated pull rod 3 and arc-chutes on the same axis, the method for adjusting its excess of stroke It is to increase or reduce the decrement of excess of stroke spring inside insulated pull rod, therefore insulated pull rod 3 targeted in the present embodiment refers to Be the internal insulated pull rod for being equipped with excess of stroke spring, be current comparative maturity about the specific structure inside such insulated pull rod The prior art, specifically refer to exhausted in patent document CN201877343U, CN106158497A or CN202394799U Edge pull rod since the improvement of the utility model does not lie in insulated pull rod internal structure, and is how to adjust insulated pull rod and company Connector 8 adjusts the spacing between the first screw thread rod segment 31 and the second screw thread rod segment 82, therefore the utility model is no longer to insulation The internal structure of pull rod 3 does excessive introduction.

To sum up, when rotating Adjusting bolt Adjusting screw 4, Adjusting bolt Adjusting screw 4 in the first screw thread rod segment 31 and the second screw thread rod segment 82 on Lower movement, such as when Adjusting bolt Adjusting screw 4 is rotated up, since top half thread pitch is bigger, the screw pitch of lower half portion compares It is small, a difference can be generated, such as when top half screw pitch is 2mm, and lower half portion screw pitch is 1mm, be rotated up adjusting spiral shell 4 one circles are covered, theoretically Adjusting bolt Adjusting screw 4 can be made to move up 2mm in insulated pull rod 3, and the screw pitch of lower half portion is only sufficient to It moves 1mm, and Adjusting bolt Adjusting screw 4 is for smooth rotation, under the effect of screw rod screw principle, can force the first screw thread rod segment 31 downwards Mobile 1mm is that the screw rod acted in the first screw thread rod segment 31 has shortened 1mm in fact.1mm insulation can be reduced when closing a floodgate in this way The decrement of excess of stroke spring inside pull rod, that is, reduce the excess of stroke of 1mm, achievees the purpose that adjust breaker over-travel with this.

The outside of main transmission connecting lever 5 is provided with guide plate 6 in circuit breaker frame, is provided on guide plate for first Pin shaft moves up and down the guide frame being oriented to, and in the present embodiment, which is the edge being provided on guide plate 6 The second long guiding hole 61 that up and down direction extends, the both ends of the first pin shaft 7 are pierced by main transmission connecting lever 5, while being also pierced by second and leading To long hole 61, block card 9 is provided on the traversing through end of two sides.Second long guiding hole 61 has moved up and down guiding to the first pin shaft 7 Effect, while the connecting hole connecting on main transmission connecting lever 5 with the first pin shaft 7 is the first long guiding hole extended along the longitudinal direction 51, in this way with the rotation of main transmission connecting lever 5, so that it may drive the vertical fortune up and down of the first pin shaft 7, connector 8, insulated pull rod 3 It is dynamic, realize that divide-shut brake ensure that the vertical motion of movable end of arc extinguishing chamber, can effectively reduce combined floodgate bullet since insulated pull rod 3 is with guiding The appearance for jumping phenomenon improves the stability of breaker operation.

In addition, being additionally provided with the first hinge hole 62 for hinged main transmission connecting lever 5 on guide plate 6, that is to say, that main transmission Connecting lever 5 is hingedly mounted on guide plate 6, therefore corresponding, and the middle part of main transmission connecting lever 5 is provided with the second hinge hole 52, Second pin shaft 10 passes through the first hinge hole 62 and the second hinge hole 52 realizes that the two is hinged, and the end of the second pin shaft 10 is also equipped with Block card 9.

The front end of main transmission connecting lever 5 is provided with third hinge hole 53, is turned by the hinge hole and third pin shaft 12 with first Arm 13 is hinged and connected, and the other end of the first connecting lever 13 is hinged by the 4th pin shaft 15 and the second connecting lever 14, the second connecting lever 14 and Breaker main shaft 16 is connected.

The Principles of Regulation of breaker over-travel are in the utility model: when debugging, using spanner pass through handle hole 1-4 protrude into it is disconnected Road device lower portion, when up rotating Adjusting bolt Adjusting screw 4, the first screw thread rod segment 31 is moved downward, and the excess of stroke of breaker reduces；Down When rotating Adjusting bolt Adjusting screw 4, the first screw thread rod segment 31 is moved upwards, and the excess of stroke of breaker increases.

Due to need to only rotate Adjusting bolt Adjusting screw 4, adjusting is very convenient, and by the way that suitable pitch difference is arranged Value, so that it may it converses in the case where regulating part rotates special angle, the relative shift that can be produced therebetween, from And excess of stroke regulated quantity is accurately controlled, greatly facilitate the debugging of breaker over-travel.In addition, the breaker also band in the utility model There is guide frame, guiding role can be realized to insulated pull rod in excess of stroke debugging and actual moving process, avoid closing rebound The generation of phenomenon improves breaker operation stability.

In the other embodiments of breaker: according to the actual situation, the screw pitch of screw thread rod segment is also possible in insulated pull rod 3 times or other suitable multiples of screw thread rod segment screw pitch on connector.

In the other embodiments of breaker: the screw pitch of the first screw thread rod segment 31 might be less that the second screw thread rod segment 82 Screw pitch, when up rotating Adjusting bolt Adjusting screw 4 at this time, the first screw thread rod segment 31 moves upwards to make up difference, and the excess of stroke increases；Down When rotating Adjusting bolt Adjusting screw 4, the first screw thread rod segment 31 is equally moved downward, and the excess of stroke reduces.

In the other embodiments of breaker: insulated pull rod 3 is also possible to not install the insulation of excess of stroke spring inside that Pull rod, at this time insulated pull rod 3 by Adjusting bolt Adjusting screw 4 effect move up and down when, adjustment be between dynamic and static contact open away from.

In the other embodiments of breaker: screw thread hole section can be set simultaneously on connector and insulated pull rod, two The screw pitch of screw thread hole section is different, and regulating part is adjusting screw rod at this time；Screw thread rod segment can also be set in insulated pull rod, and even Screw thread hole section is set on fitting, or screw thread hole section is set in insulated pull rod, and screw thread rod segment is set on connector, at this time The upper and lower ends of regulating part are also different, but action principle is all as preferred embodiment.

In the other embodiments of breaker: can also be not provided on guide plate for the hinged of hinged main transmission connecting lever Hole, main transmission connecting lever can be hinged on the other positions of frame at this time.

In the other embodiments of breaker: the guide frame on guide plate is also possible to be arranged in leading on guide plate Rail, and the both ends of the first pin shaft are provided with the guide wheel for being oriented to sliding up and down in guide rail.

In the other embodiments of breaker: the outside of main transmission connecting lever can also be not provided with guide plate, at this moment main transmission Without setting long guiding hole, insulated pull rod not adopting guiding structure on connecting lever.

In the other embodiments of breaker: when 31 long enough of the first screw thread rod segment in insulated pull rod and protruding into breaker When in frame, regulating part can be fully located in circuit breaker frame.

In the other embodiments of breaker: connector can not be to be made of seperated connector and the first pin shaft, example If connector can be integral piece, be integrally machined out on connector connecting shaft for being connect with main transmission connecting lever and with adjusting The screw thread rod segment that swivel nut is threadedly coupled；Connector may not be the structure that the first pin shaft passes through connector, such as when the first pin When shaft diameter is enough big, it is also possible to connector across the first pin shaft.

Claims (8)

1. breaker, including circuit breaker frame, insulated pull rod and operating mechanism, operating mechanism includes main transmission connecting lever and main biography The connector of dynamic connecting lever transmission connection, the connector are connected with insulated pull rod and are moved together with insulated pull rod, it is characterised in that: The connector and insulated pull rod are along the extending direction interval setting of insulated pull rod and to be provided with rotation direction identical opposite one end But screw pitch different screw thread rod segment or screw thread hole section, breaker further includes regulating part, and regulating part both ends are coaxially arranged with to be used respectively In with the screw thread rod segment or the first, second threaded connection section for being threadedly coupled of screw thread hole section on connector and insulated pull rod, first The screw pitch of threaded connection section is different from the screw pitch of the second threaded connection section and has the difference of setting, which is used to adjust in rotation Make the relative displacement that setting is generated between connector and insulated pull rod when saving part.

2. breaker according to claim 1, it is characterised in that: the connector includes connector and through connector First pin shaft, is provided with the first long guiding hole extended along the longitudinal direction on main transmission connecting lever, and the end of the first pin shaft passes through the One long guiding hole and the guiding movement in the first long guiding hole are provided with guiding in circuit breaker frame on the outside of main transmission connecting lever Plate is provided with for moving up and down the guide frame being oriented to the first pin shaft on guide plate.

3. breaker according to claim 2, it is characterised in that: the guide frame be provided on guide plate along upper The second long guiding hole that lower direction extends, the end of the first pin shaft is threaded through in the second long guiding hole.

4. breaker described in any one according to claim 1 ~ 3, it is characterised in that: connector and insulated pull rod it is opposite one End setting is screw thread rod segment, and the regulating part is Adjusting bolt Adjusting screw, and first, second threaded connection section is threaded hole.

5. breaker according to claim 4, it is characterised in that: the screw pitch of screw thread rod segment is on connector in insulated pull rod Twice of the screw pitch of screw thread rod segment.

6. breaker described in any one according to claim 1 ~ 3, it is characterised in that: screw thread rod segment or screw thread in insulated pull rod The screw pitch of hole section is twice of the screw pitch of screw thread rod segment or screw thread hole section on connector.

7. breaker according to claim 2 or 3, it is characterised in that: be additionally provided on guide plate for hinged main transmission The hinge hole of connecting lever.

8. breaker described in any one according to claim 1 ~ 3, it is characterised in that: circuit breaker frame includes made of bending And the frame bent plate with mounting plane, be fixedly installed with pole on the mounting plane of frame bent plate, on frame bent plate with The junction of pole is provided with perforation, and regulating part passes through the perforation and upper end is extend into inside pole, lower end is stretched Enter to inside circuit breaker frame, offers and protrude into convenient for tool to turn the handle hole of regulating part, regulating part in circuit breaker frame Lower section from handle hole expose.