CN111192766B - Spring operating mechanism and circuit breaker - Google Patents

Spring operating mechanism and circuit breaker Download PDF

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Publication number
CN111192766B
CN111192766B CN201911327325.XA CN201911327325A CN111192766B CN 111192766 B CN111192766 B CN 111192766B CN 201911327325 A CN201911327325 A CN 201911327325A CN 111192766 B CN111192766 B CN 111192766B
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electromagnet
latch
auxiliary
main
holder
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CN111192766A (en
Inventor
孔志武
付亚旭
王慧慧
郑晓春
李文科
王帅军
杨天明
郭锴
陈金钟
黄晓洋
范曙光
晋志英
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State Grid Corp of China SGCC
Pinggao Group Co Ltd
Henan Pinggao Electric Co Ltd
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State Grid Corp of China SGCC
Pinggao Group Co Ltd
Henan Pinggao Electric Co Ltd
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Priority to CN201911327325.XA priority Critical patent/CN111192766B/en
Publication of CN111192766A publication Critical patent/CN111192766A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/24—Interlocking, locking, or latching mechanisms for interlocking two or more parts of the mechanism for operating contacts

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Breakers (AREA)

Abstract

本发明涉及弹簧操动机构及断路器，本发明的弹簧操动机构的锁闩摆动装配在机架上，主电磁铁和副电磁铁在撞杆延伸方向上布置并且分别处于锁闩的相对两侧，副电磁铁驱动杆轴线与主电磁铁驱动杆轴线平行或者重合，副电磁铁驱动杆上设有挂钩，在主电磁铁正常时，锁闩动作空间保证锁闩与副电磁铁不干涉，在主电磁铁故障时，通过副电磁铁驱动杆上的挂钩，可以驱动锁闩动作。与并列布置两个电磁铁的方式相比，本发明的两个电磁铁的驱动杆间隔距离较小或者为零，不需要在锁闩上设置撞杆以适配两个间距较远的电磁铁驱动杆，解决了目前的弹簧操动机构需要预留撞杆较大的活动空间造成的弹簧操动机构占用空间较大的问题。

Figure 201911327325

The present invention relates to a spring operating mechanism and a circuit breaker. The latch of the spring operating mechanism of the present invention is oscillatingly assembled on a frame, and the main electromagnet and the auxiliary electromagnet are arranged in the extending direction of the striker and are respectively located on opposite sides of the latch. On the side, the axis of the auxiliary electromagnet drive rod is parallel or coincident with the axis of the main electromagnet drive rod. The auxiliary electromagnet drive rod is provided with a hook. When the main electromagnet is normal, the action space of the latch ensures that the latch does not interfere with the auxiliary electromagnet. When the main electromagnet fails, the latch action can be driven through the hook on the driving rod of the auxiliary electromagnet. Compared with the way of arranging two electromagnets side by side, the distance between the driving rods of the two electromagnets of the present invention is small or zero, and it is not necessary to set a striker on the latch to fit the two electromagnets with a long distance. The driving rod solves the problem of the large space occupied by the spring operating mechanism caused by the need to reserve a large movable space for the striker rod in the current spring operating mechanism.

Figure 201911327325

Description

Spring operating mechanism and circuit breaker
Technical Field
The invention relates to a spring operating mechanism and a circuit breaker.
Background
The breaker spring operating mechanism comprises a rack, an output rotating shaft and an energy storage shaft are rotatably mounted on the rack, a connecting lever is sleeved on the upper rotating shaft, a cam is sleeved on the upper rotating shaft of the energy storage shaft, the cam is connected with a closing spring, an opening spring is connected onto the connecting lever, after the energy storage of the closing spring is released, the cam can drive the connecting lever to enable the output rotating shaft to rotate towards the closing direction, after the energy storage of the opening spring is released, the opening spring drives an output shaft to rotate towards the opening direction through the connecting lever, a closing pawl and an opening pawl are further arranged on the rack, the opening pawl and the closing pawl are used for placing the opening spring and the closing spring in an energy storage holding state, in order to avoid the action of the pawl, the control of the pawl is realized, and the spring operating mechanism is generally provided with a tripping system.
The Chinese invention patent application with the application publication number of CN109166741A and the application publication number of 2019.01.08 discloses a circuit breaker, a spring operating mechanism and a latch assembly thereof, wherein the spring operating mechanism comprises a latch and a latch assembly, the latch assembly comprises a base and a latch which is rotatably assembled on the base, the latch is provided with a stopping position for stopping the latch and an abdicating position for abdicating the latch on a controlled reciprocating swinging stroke, the base is provided with at least two electromagnets which are arranged in parallel and can independently drive the latch to be swung from the stopping position to the abdicating position, the latch and the electromagnets are propped and matched through a collision rod on the latch and a collision rod of the electromagnets, the two electromagnets of the spring operating mechanism are mutually independent and can realize the independent drive of the latch, but the electromagnets are arranged in parallel, a larger installation space is needed in the extending direction of a latch swinging axis, and the distance between driving rods of the two electromagnets is longer during installation, the striker is required to be arranged on the latch, the length of the striker is long, the striker needs a large installation space along with the swing of the latch, and the problem of large occupied space of the latch assembly exists.
Disclosure of Invention
The invention aims to provide a spring operating mechanism, which is used for solving the problem that the existing spring operating mechanism needs to reserve a larger activity space of a collision bar, so that the occupied space of the spring operating mechanism is larger; in addition, the invention also aims to provide a circuit breaker using the spring operating mechanism.
The spring operating mechanism adopts the following technical scheme:
a frame;
a detent;
the lock latch is assembled on the frame in a swinging manner;
a main electromagnet and a secondary electromagnet which can independently drive the latch to act,
the main electromagnet comprises a main electromagnet driving rod which is used for being matched with the latch in an abutting mode so as to drive the latch to act;
the auxiliary electromagnet comprises an auxiliary electromagnet driving rod, the axis of the auxiliary electromagnet driving rod is parallel to or coincident with the axis of the main electromagnet driving rod, a hook is arranged on the auxiliary electromagnet driving rod and used for being matched with a latch hook to drive the latch to act, a latch matching part matched with the latch hook is arranged on the hook, and a latch acting space for the latch to act is formed in one side of the latch matching part, facing the latch, of the latch matching part;
the main electromagnet and the auxiliary electromagnet are arranged in the extending direction of the main electromagnet driving rod; in the extending direction of the main electromagnet driving rod, the main electromagnet and the auxiliary electromagnet are respectively positioned at two opposite sides of the latch;
the latch comprises an abutting matching part which is in abutting matching with the main electromagnet driving rod and a hook matching part which is matched with the hook.
The invention has the beneficial effects that: the latch of the spring operating mechanism is assembled on the frame in a swinging mode, the main electromagnet and the auxiliary electromagnet are arranged in the extending direction of the striker and are respectively positioned on two opposite sides of the latch, the axis of the driving rod of the auxiliary electromagnet is parallel to or coincident with the axis of the driving rod of the main electromagnet, the driving rod of the auxiliary electromagnet is provided with a hook, when the main electromagnet is normal, the latch action space ensures that the latch does not interfere with the auxiliary electromagnet, and when the main electromagnet fails, the latch can be driven to act through the hook on the driving rod of the auxiliary electromagnet. Compared with the mode of arranging two electromagnets in parallel, the distance between the driving rods of the two electromagnets is smaller or zero, and a striker is not required to be arranged on the latch to be matched with the two electromagnet driving rods with longer distance, so that the problem that the spring operating mechanism occupies larger space due to the fact that the existing spring operating mechanism needs to reserve larger moving space of the striker is solved.
Further, the hooking engagement portion and the abutting engagement portion are arranged in the extending direction of the latch swing axis. The action strokes of the two electromagnets on the lock latch are the same, and the specifications of the two electromagnets can be the same.
Further, the abutting engagement portion and a latch stop engagement portion of the latch for engagement with the latch stop are arranged in a direction perpendicular to the swing axis of the latch, and the hook engagement portion is suspended to the side of the abutting engagement portion. The main electromagnet is used as a common electromagnet, can stably apply force to the latch, and prolongs the service life of the mechanism.
Furthermore, the hook is detachably and fixedly connected with the auxiliary electromagnet driving rod. Because the hook is easy to wear, the hook and the auxiliary electromagnet driving rod can be detached, and the hook is convenient to replace.
Furthermore, the lock latch matching part and the auxiliary electromagnet driving rod are arranged in the axial direction of the auxiliary electromagnet driving rod at intervals, and a lock latch action space is arranged between the lock latch matching part and the auxiliary electromagnet driving rod. The action force applied to the latch by the auxiliary electromagnet driving rod is ensured to be in the axial direction of the auxiliary electromagnet driving rod, the existence of offset distance is avoided, and the stability is good.
Furthermore, the hook is a U-shaped hook for inserting a lock bolt, the U-shaped hook comprises two parallel sections and a connecting section for connecting the two parallel sections, one parallel section forms the lock bolt matching part, the other parallel section is fixed with the driving rod of the auxiliary electromagnet, and the lock bolt action space is positioned between the two parallel sections. The U-shaped hook is simple in structure and convenient to process and mount.
Furthermore, a threaded hole is formed in a parallel section fixed with the auxiliary electromagnet driving rod, and the parallel section is fixed with the auxiliary electromagnet driving rod through the threaded hole. The hook is convenient to replace, and the threaded hole is simple in structure and convenient to install.
Furthermore, an auxiliary electromagnet holder hole for fixing the auxiliary electromagnet is formed in the holder of the auxiliary electromagnet, the auxiliary electromagnet holder hole extends along the extension direction of the auxiliary electromagnet driving rod, and an adjusting gasket for adjusting the position is arranged between the holder of the auxiliary electromagnet and the rack; and/or a main electromagnet holder hole for fixing the main electromagnet is arranged on the main electromagnet holder, the main electromagnet holder hole extends along the extension direction of the main electromagnet driving rod, and an adjusting gasket for adjusting the position is arranged between the main electromagnet holder and the frame. The position of the retainer and the rack can be conveniently adjusted, and the retainer is adaptive to a large rack assembly error.
Furthermore, an auxiliary electromagnet holder hole for fixing the auxiliary electromagnet is formed in a holder of the auxiliary electromagnet, the auxiliary electromagnet holder hole extends along the extension direction of the auxiliary electromagnet driving rod, an auxiliary electromagnet fixing hole corresponding to the auxiliary electromagnet holder hole is formed in the rack, at least one of the auxiliary electromagnet fixing hole and the auxiliary electromagnet holder hole is a long hole, and the long hole extends along the arrangement direction of the abutting matching part and the hook matching part and is used for adjusting the fixing position of the auxiliary electromagnet; and/or the main electromagnet holder is provided with a main electromagnet holder hole for fixing the main electromagnet, the main electromagnet holder hole extends along the extension direction of the auxiliary electromagnet driving rod, the rack is provided with a main electromagnet fixing hole corresponding to the main electromagnet holder hole, at least one of the main electromagnet fixing hole and the main electromagnet holder hole is a long hole, and the long hole extends along the arrangement direction of the abutting matching part and the hook matching part and is used for adjusting the fixing position of the main electromagnet. The position of the retainer and the rack can be conveniently adjusted, and the retainer is adaptive to a large rack assembly error.
The technical scheme of the circuit breaker comprises the following steps:
the circuit breaker includes spring operating mechanism, and spring operating mechanism includes:
a frame;
a detent;
the lock latch is assembled on the frame in a swinging manner;
a main electromagnet and a secondary electromagnet which can independently drive the latch to act,
the main electromagnet comprises a main electromagnet driving rod which is used for being matched with the latch in an abutting mode so as to drive the latch to act;
the auxiliary electromagnet comprises an auxiliary electromagnet driving rod, the axis of the auxiliary electromagnet driving rod is parallel to or coincident with the axis of the main electromagnet driving rod, a hook is arranged on the auxiliary electromagnet driving rod and used for being matched with a latch hook to drive the latch to act, a latch matching part matched with the latch hook is arranged on the hook, and a latch acting space for the latch to act is formed in one side of the latch matching part, facing the latch, of the latch matching part;
the main electromagnet and the auxiliary electromagnet are arranged in the extending direction of the main electromagnet driving rod; in the extending direction of the main electromagnet driving rod, the main electromagnet and the auxiliary electromagnet are respectively positioned at two opposite sides of the latch;
the latch comprises an abutting matching part which is in abutting matching with the main electromagnet driving rod and a hook matching part which is matched with the hook.
The invention has the beneficial effects that: the latch of the spring operating mechanism is assembled on the frame in a swinging mode, the main electromagnet and the auxiliary electromagnet are arranged in the extending direction of the striker and are respectively positioned on two opposite sides of the latch, the axis of the driving rod of the auxiliary electromagnet is parallel to or coincident with the axis of the driving rod of the main electromagnet, the driving rod of the auxiliary electromagnet is provided with a hook, when the main electromagnet is normal, the latch action space ensures that the latch does not interfere with the auxiliary electromagnet, and when the main electromagnet fails, the latch can be driven to act through the hook on the driving rod of the auxiliary electromagnet. Compared with the mode of arranging two electromagnets in parallel, the distance between the driving rods of the two electromagnets is smaller or zero, and a striker is not required to be arranged on the latch to be matched with the two electromagnet driving rods with longer distance, so that the problem that the spring operating mechanism occupies larger space due to the fact that the existing spring operating mechanism needs to reserve larger moving space of the striker is solved.
Further, the hooking engagement portion and the abutting engagement portion are arranged in the extending direction of the latch swing axis. The action strokes of the two electromagnets on the lock latch are the same, and the specifications of the two electromagnets can be the same.
Further, the abutting engagement portion and a latch stop engagement portion of the latch for engagement with the latch stop are arranged in a direction perpendicular to the swing axis of the latch, and the hook engagement portion is suspended to the side of the abutting engagement portion. The main electromagnet is used as a common electromagnet, can stably apply force to the latch, and prolongs the service life of the mechanism.
Furthermore, the hook is detachably and fixedly connected with the auxiliary electromagnet driving rod. Because the hook is easy to wear, the hook and the auxiliary electromagnet driving rod can be detached, and the hook is convenient to replace.
Furthermore, the lock latch matching part and the auxiliary electromagnet driving rod are arranged in the axial direction of the auxiliary electromagnet driving rod at intervals, and a lock latch action space is arranged between the lock latch matching part and the auxiliary electromagnet driving rod. The action force applied to the latch by the auxiliary electromagnet driving rod is ensured to be in the axial direction of the auxiliary electromagnet driving rod, the existence of offset distance is avoided, and the stability is good.
Furthermore, the hook is a U-shaped hook for inserting a lock bolt, the U-shaped hook comprises two parallel sections and a connecting section for connecting the two parallel sections, one parallel section forms the lock bolt matching part, the other parallel section is fixed with the driving rod of the auxiliary electromagnet, and the lock bolt action space is positioned between the two parallel sections. The U-shaped hook is simple in structure and convenient to process and mount.
Furthermore, a threaded hole is formed in a parallel section fixed with the auxiliary electromagnet driving rod, and the parallel section is fixed with the auxiliary electromagnet driving rod through the threaded hole. The hook is convenient to replace, and the threaded hole is simple in structure and convenient to install.
Furthermore, an auxiliary electromagnet holder hole for fixing the auxiliary electromagnet is formed in the holder of the auxiliary electromagnet, the auxiliary electromagnet holder hole extends along the extension direction of the auxiliary electromagnet driving rod, and an adjusting gasket for adjusting the position is arranged between the holder of the auxiliary electromagnet and the rack; and/or a main electromagnet holder hole for fixing the main electromagnet is arranged on the main electromagnet holder, the main electromagnet holder hole extends along the extension direction of the main electromagnet driving rod, and an adjusting gasket for adjusting the position is arranged between the main electromagnet holder and the frame. The position of the retainer and the rack can be conveniently adjusted, and the retainer is adaptive to a large rack assembly error.
Furthermore, an auxiliary electromagnet holder hole for fixing the auxiliary electromagnet is formed in a holder of the auxiliary electromagnet, the auxiliary electromagnet holder hole extends along the extension direction of the auxiliary electromagnet driving rod, an auxiliary electromagnet fixing hole corresponding to the auxiliary electromagnet holder hole is formed in the rack, at least one of the auxiliary electromagnet fixing hole and the auxiliary electromagnet holder hole is a long hole, and the long hole extends along the arrangement direction of the abutting matching part and the hook matching part and is used for adjusting the fixing position of the auxiliary electromagnet; and/or the main electromagnet holder is provided with a main electromagnet holder hole for fixing the main electromagnet, the main electromagnet holder hole extends along the extension direction of the auxiliary electromagnet driving rod, the rack is provided with a main electromagnet fixing hole corresponding to the main electromagnet holder hole, at least one of the main electromagnet fixing hole and the main electromagnet holder hole is a long hole, and the long hole extends along the arrangement direction of the abutting matching part and the hook matching part and is used for adjusting the fixing position of the main electromagnet. The position of the retainer and the rack can be conveniently adjusted, and the retainer is adaptive to a large rack assembly error.
Drawings
Fig. 1 is a schematic structural view of a circuit breaker according to an embodiment 1 of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a schematic view of an assembly structure of two electromagnets, a part of a frame and a latch in the embodiment 1 of the circuit breaker of the present invention;
fig. 4 is a schematic view of an assembly structure of two electromagnets and latches in embodiment 1 of the circuit breaker of the present invention;
fig. 5 is a schematic view of an assembly structure of two electromagnets and a latch from another view angle in the embodiment 1 of the circuit breaker of the present invention;
fig. 6 is a schematic diagram of the position relationship between the driving rods and the latches of two electromagnets in the embodiment 1 of the circuit breaker of the present invention;
in the figure: 1-a circuit breaker body; 2-a spring operating mechanism; 21-a frame; 22-a latch; 221-a latch stop engagement portion; 222-a counter-engaging portion; 223-hooking engagement portions; 23-a main electromagnet; 231-main electromagnet cage; 2311-main electromagnet holder aperture; 232-main electromagnet moving iron; 233-main electromagnet drive rod; 24-a secondary electromagnet; 241-auxiliary electromagnet retainer; 2411-auxiliary electromagnet holder hole; 242-secondary electromagnet moving iron; 243-auxiliary electromagnet driving rod; 244-hooks; 2441-connecting segment; 2442-latch mating part; 2443-fixed section.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
Embodiment 1 of the circuit breaker of the present invention: as shown in fig. 1, the circuit breaker includes a circuit breaker body 1 and a spring operating mechanism 2, the spring operating mechanism 2 includes a frame 21 and two latches, one of the two latches is an opening latch, the other is a closing latch, and both the opening latch and the closing latch are connected to a tripping system.
As shown in fig. 2 to 6, the opening tripping system of the spring-operated mechanism includes a latch 22 pivotably mounted on a frame 21, a main electromagnet 23 for driving the latch 22 individually, and a sub-electromagnet 24 for driving the latch 22 individually, and the latch 22 includes a latch stop engagement portion 221 for engaging with the opening latch stop to limit the opening latch release.
The main electromagnet 23 includes a main electromagnet holder 231, a main electromagnet coil, a main electromagnet moving iron 232, and a main electromagnet driving rod 233, the main electromagnet holder 231 is fixed to the frame 21, two main electromagnet holder holes 2311 are formed in the main electromagnet holder 231, main electromagnet fixing holes corresponding to the main electromagnet holder holes 2311 are formed in the frame 21, and the main electromagnet holding holes 2311 are fixed to the frame 21 by two fixing bolts penetrating through the main electromagnet holder holes 2311, and the axes of the two fixing bolts are parallel to the axis of the main electromagnet driving rod 233, so that the position of the main electromagnet 23 in the extending direction of the main electromagnet driving rod 233 can be adjusted by adding an adjusting shim, and the gap between the main electromagnet driving rod 233 and the latch 22 is appropriate. The main electromagnet driving rod 233 is fixed to the main electromagnet moving iron 232, and has an abutting end for abutting and cooperating with the latch 22 to drive the latch 22 to move.
The sub-electromagnet 24 includes a sub-electromagnet holder 241, a sub-electromagnet coil, a sub-electromagnet moving iron 242, and a sub-electromagnet drive lever 243, the axis of the sub-electromagnet drive lever 243 is parallel to the axis of the main electromagnet drive lever 233, and the main electromagnet 23 and the sub-electromagnet 24 are arranged in the extending direction of the main electromagnet drive lever 233. In the extending direction of the main electromagnet driving rod 233, the main electromagnet 23 and the auxiliary electromagnet 24 are respectively located at two opposite sides of the latch 22, so that the distance between the auxiliary electromagnet driving rod 243 and the main electromagnet driving rod 233 is reduced, the smaller latch 22 can be matched with the two electromagnets, and the occupied space of the spring operating mechanism 2 is reduced.
The auxiliary electromagnet holder 241 is fixed to the frame 21, and as shown in fig. 2, two auxiliary electromagnet holder holes 2411 are provided in the auxiliary electromagnet holder 241, and fixed to the frame 21 by passing through the auxiliary electromagnet holder holes 2411 with two fixing bolts, and auxiliary electromagnet fixing holes corresponding to the auxiliary electromagnet holder holes 2411 are provided in the frame 21. The auxiliary electromagnet holder hole 2411 extends along the extending direction of the auxiliary electromagnet driving rod 243, and the axes of the two fixing bolts are parallel to the axis of the auxiliary electromagnet driving rod 243, so that the position of the auxiliary electromagnet 24 in the extending direction of the auxiliary electromagnet driving rod 243 can be adjusted by adding an adjusting gasket, and the position of the auxiliary electromagnet driving rod 243 is proper.
The auxiliary electromagnet driving rod 243 is fixed on the auxiliary electromagnet moving iron 242, and a hook 244 is fixed at one end of the auxiliary electromagnet driving rod, and the hook 244 is used for being hooked with the latch 22 to drive the latch 22 to move. The hook 244 is a U-shaped hook, the U-shaped hook comprises two parallel sections and a connecting section 2441 for connecting the two parallel sections, one of the parallel sections forms a latch matching part 2442 matched with the latch 22 in a hooking manner, the other parallel section is a fixing section 2443 fixed with the auxiliary electromagnet driving rod 243, a threaded hole is formed in the fixing section 2443, a threaded section matched with the threaded hole in a threaded manner is arranged on the auxiliary electromagnet driving rod 243, and the auxiliary electromagnet driving rod 243 is fixed with the hook 244 through the threaded section. Because the auxiliary electromagnet driving rod 243 requires to use non-magnetic materials, the auxiliary electromagnet driving rod 243 uses materials which are not wear-resistant, and the U-shaped fixing block and the auxiliary electromagnet driving rod 243 are detachably connected in a split manner, so that the hook 244 is made of wear-resistant materials and is convenient to replace after being worn.
The latch fitting portion 2442 and the sub-electromagnet drive lever 243 are provided at an interval in the axial direction of the sub-electromagnet drive lever 243, a latch operation space for operating the latch 22 is formed therebetween, and a force receiving point of the hook 244 is located on an extension line of the sub-electromagnet drive lever 243, thereby ensuring that the sub-electromagnet 24 stably applies force to the latch 22.
The latch 22 further includes an abutting engagement portion 222 which is in abutting engagement with the main electromagnet driving lever 233 and a hook engagement portion 223 which is in engagement with the hook 244. Since the main electromagnet 23 is a conventional electromagnet and the abutting engagement portion 222 engaged with the main electromagnet driving rod 233 is a portion with a higher frequency of use, in this embodiment, in order to improve the stability of the spring operating mechanism 2, the abutting engagement portion 222 and the separating brake latch stop engagement portion 221 are disposed in a direction perpendicular to the swing axis of the latch 22, so that the distance between the two portions in the extending direction of the swing axis of the latch 22 is zero, thereby reducing the eccentric torque of the latch. For the hook engaging portion 223, because the secondary electromagnet 24 is not commonly used, the hook engaging portion 223 and the abutting engaging portion 222 are arranged in the extending direction of the swing axis of the lock bar 22, and the hook engaging portion 223 is suspended beside the abutting engaging portion 222, so that the volume of the lock bar 22 is not changed as much as possible on the premise of not influencing the normal operation, the original assembling relation of the lock bar 22 is not changed, and only the convex abutting engaging portion 222 needs to be arranged on the original lock bar 22, the structure is simple, and the cost is low.
The spring operating mechanism 2 is provided with a controller for controlling the main electromagnet 23 and the auxiliary electromagnet 24 to independently drive the latch 22 to act, when the spring operating mechanism 2 drives the breaker body 1 to open the brake, the brake opening spring stores energy, the controller receives a brake opening command and then controls the main electromagnet 23 to act, so that the main electromagnet driving rod 233 drives the latch 22 to act, the latch 22 releases the blocking of the split brake catch, the split brake catch is released, and the split brake spring releases elastic potential energy to open the breaker.
The closing pawl of the invention is also provided with a closing tripping system, and the action mode of the closing tripping system on the closing pawl is the same as the action mode of the opening tripping system on the opening pawl in principle, and the details are not repeated here.
The circuit breaker in this embodiment differs from the above circuit breaker only in the following specific implementation: one of the auxiliary electromagnet fixing hole and the corresponding auxiliary electromagnet retainer hole is a long hole, and the long hole extends along the arrangement direction of the abutting matching part and the hook matching part, so that the position of the auxiliary electromagnet is conveniently adjusted, and the hook corresponds to the position of the latch. In other embodiments, both of the secondary electromagnet fixing hole and the secondary electromagnet holder hole may be elongated holes. In other embodiments, one of the main electromagnet fixing hole and the corresponding main electromagnet holder hole is a long hole extending in the arrangement direction of the abutting engagement portion and the hooking engagement portion
The circuit breaker in this embodiment differs from the above circuit breaker only in the following specific implementation: the abutting engagement portion is suspended on a side of the hooking engagement portion, and the hooking engagement portion and the abutting engagement portion are arranged in an extending direction of a swing axis of the latch. In other embodiments, when the latch has a larger extension of the rotation axis, the two parts are not suspended; of course, when the latch has a large dimension in the direction in which the rotation axis extends, both the hooking engagement portion and the abutting engagement portion may be partially suspended.
The circuit breaker in this embodiment differs from the above circuit breaker only in the following specific implementation: the hook is welded and fixed with the auxiliary electromagnet driving rod. In other embodiments, the hook and the secondary electromagnet driving rod can be integrally formed or fixed through a flange.
The circuit breaker in this embodiment is different from the above circuit breaker in only the following specific implementation: the hooking engagement portion and the abutting engagement portion are arranged in the latch swing shaft radial direction, that is, in the latch length direction.
The circuit breaker in this embodiment is different from the above circuit breaker in only the following specific implementation: the lock latch matching part can be directly arranged at the side of the auxiliary electromagnet driving rod, and the lock latch matching part and the auxiliary electromagnet driving rod are arranged in an L shape. In other embodiments, the latch mating portion is in a J-shaped arrangement with the secondary electromagnet drive bar.
The circuit breaker in this embodiment is different from the circuit breaker in the above embodiment only in that: the axis of the auxiliary electromagnet driving rod coincides with the axis of the main electromagnet driving rod, and at the moment, the latch matching part on the hook and the auxiliary electromagnet driving rod are staggered in the axial direction of the auxiliary electromagnet driving rod.
The circuit breaker in this embodiment differs from the above circuit breaker only in the following specific implementation: and the retainer of the auxiliary electromagnet is welded and fixed on the rack. In other embodiments, the secondary-electromagnet holder hole extends in a direction perpendicular to the direction in which the secondary-electromagnet drive rod extends. Similarly, the main electromagnet holder can be welded and fixed on the frame, and the main electromagnet holder hole can also extend along the direction perpendicular to the extension direction of the auxiliary electromagnet driving rod.
In the embodiment of the spring operating mechanism of the present invention, the specific implementation manner of the spring operating mechanism in this embodiment is the same as the structure of the spring operating mechanism described in the specific embodiment of any one of the above-mentioned circuit breakers, and details are not repeated.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.

Claims (10)

1.弹簧操动机构，包括：1. Spring operating mechanism, including: 机架；frame; 掣子；pawl; 其特征在于，弹簧操动机构还包括：It is characterized in that, the spring operating mechanism also includes: 锁闩，摆动装配机架上；Latch, swing assembly on rack; 可单独驱动锁闩动作的主电磁铁和副电磁铁，The main electromagnet and the auxiliary electromagnet that can drive the latch action independently, 主电磁铁包括主电磁铁驱动杆，主电磁铁驱动杆用于与锁闩抵顶配合以带动锁闩动作；The main electromagnet includes a main electromagnet driving rod, and the main electromagnet driving rod is used for abutting and cooperating with the latch to drive the latch action; 副电磁铁包括副电磁铁驱动杆，副电磁铁驱动杆轴线与主电磁铁驱动杆轴线平行或者重合，副电磁铁驱动杆上设有挂钩，挂钩用于与锁闩钩挂配合带动锁闩动作，挂钩上设有与锁闩钩挂配合的锁闩配合部分，锁闩配合部分朝向锁闩的一侧设有供锁闩动作的锁闩动作空间；The auxiliary electromagnet includes the auxiliary electromagnet drive rod, the axis of the auxiliary electromagnet drive rod is parallel or coincident with the axis of the main electromagnet drive rod, the auxiliary electromagnet drive rod is provided with a hook, and the hook is used to cooperate with the latch hook to drive the latch action , the hook is provided with a latch cooperating part that cooperates with the latch hook, and the side of the latch cooperating part facing the latch is provided with a latch action space for the latch action; 主电磁铁和副电磁铁在主电磁铁驱动杆延伸方向上布置；主电磁铁处于锁闩在主电磁铁驱动杆延伸方向上的一侧，副电磁铁处于锁闩在主电磁铁驱动杆延伸方向上的另一侧；The main electromagnet and the auxiliary electromagnet are arranged in the extension direction of the main electromagnet drive rod; the main electromagnet is located on the side of the latch on the extension direction of the main electromagnet drive rod, and the auxiliary electromagnet is located at the latch extended on the main electromagnet drive rod the other side in the direction; 锁闩包括与主电磁铁驱动杆抵顶配合的抵顶配合部分和与挂钩配合的钩挂配合部分。The latch includes an abutting fitting part that is abutted and matched with the driving rod of the main electromagnet and a hooking fitting part that is matched with a hook. 2.根据权利要求1所述的弹簧操动机构，其特征在于，所述钩挂配合部分与抵顶配合部分在锁闩摆动轴线延伸方向上布置。2 . The spring operating mechanism according to claim 1 , wherein the hook engaging portion and the abutting engaging portion are arranged in the extending direction of the latch swing axis. 3 . 3.根据权利要求2所述的弹簧操动机构，其特征在于，所述抵顶配合部分与锁闩上用于与掣子挡止配合的掣子挡止配合部分在垂直于锁闩摆动轴线方向上布置，所述钩挂配合部分悬置在抵顶配合部分的旁侧。3 . The spring operating mechanism according to claim 2 , wherein the abutting engaging portion and the latch blocking and engaging portion on the latch for blocking and cooperating with the latch are perpendicular to the swing axis of the latch. 4 . Oriented, the hook engagement portion is suspended beside the abutment engagement portion. 4.根据权利要求1或2或3所述的弹簧操动机构，其特征在于，所述挂钩与副电磁铁驱动杆可拆固定连接。4. The spring operating mechanism according to claim 1, 2 or 3, wherein the hook is detachably and fixedly connected to the driving rod of the auxiliary electromagnet. 5.根据权利要求1或2或3所述的弹簧操动机构，其特征在于，所述锁闩配合部分与副电磁铁驱动杆在副电磁铁驱动杆轴向上间隔设置，锁闩动作空间设置在锁闩配合部分与副电磁铁驱动杆之间。5. The spring operating mechanism according to claim 1, 2 or 3, wherein the latch matching portion and the auxiliary electromagnet drive rod are arranged at intervals in the axial direction of the auxiliary electromagnet drive rod, and the latch action space It is arranged between the latch mating part and the auxiliary electromagnet drive rod. 6.根据权利要求5所述的弹簧操动机构，其特征在于，所述挂钩为供锁闩插入的U形钩，U形钩包括两个平行的平行段和连接两平行段的连接段，其中一个平行段形成所述锁闩配合部分，另一个平行段与副电磁铁驱动杆固定，所述锁闩动作空间处于两个平行段之间。6. The spring operating mechanism according to claim 5, wherein the hook is a U-shaped hook for the latch to be inserted, and the U-shaped hook comprises two parallel parallel sections and a connecting section connecting the two parallel sections, One of the parallel segments forms the latch matching portion, the other parallel segment is fixed with the auxiliary electromagnet driving rod, and the latch action space is located between the two parallel segments. 7.根据权利要求6所述的弹簧操动机构，其特征在于，与副电磁铁驱动杆固定的平行段上设有螺纹孔，该平行段通过螺纹孔与副电磁铁驱动杆固定。7 . The spring operating mechanism according to claim 6 , wherein a threaded hole is provided on the parallel section fixed to the driving rod of the auxiliary electromagnet, and the parallel section is fixed to the driving rod of the auxiliary electromagnet through the threaded hole. 8 . 8.根据权利要求1或2或3所述的弹簧操动机构，其特征在于，副电磁铁的保持架上设有用于固定副电磁铁的副电磁铁保持架孔，副电磁铁保持架孔沿副电磁铁驱动杆延伸方向延伸，副电磁铁的保持架与机架之间设有用于调整位置的调整垫片；和/或主电磁铁的保持架上设有用于固定主电磁铁的主电磁铁保持架孔，主电磁铁保持架孔沿主电磁铁驱动杆延伸方向延伸，主电磁铁的保持架与机架之间设有用于调整位置的调整垫片。8. The spring operating mechanism according to claim 1, 2 or 3, wherein the holder of the secondary electromagnet is provided with a secondary electromagnet holder hole for fixing the secondary electromagnet, and the secondary electromagnet holder hole is provided on the holder of the secondary electromagnet. It extends along the extension direction of the driving rod of the auxiliary electromagnet, and between the holder of the auxiliary electromagnet and the frame is provided with an adjusting pad for adjusting the position; and/or the holder of the main electromagnet is provided with a main electromagnet for fixing the main electromagnet. An electromagnet holder hole, the main electromagnet holder hole extends along the extension direction of the main electromagnet drive rod, and an adjusting gasket for adjusting the position is arranged between the main electromagnet holder and the frame. 9.根据权利要求1或2或3所述的弹簧操动机构，其特征在于，副电磁铁的保持架上设有用于固定副电磁铁的副电磁铁保持架孔，副电磁铁保持架孔沿副电磁铁驱动杆延伸方向延伸，机架上设有与副电磁铁保持架孔对应的副电磁铁固定孔，副电磁铁固定孔和副电磁铁保持架孔中至少一个为长孔，长孔沿抵顶配合部分与钩挂配合部分布置方向延伸，用于调整副电磁铁的固定位置；和/或主电磁铁的保持架上设有用于固定主电磁铁的主电磁铁保持架孔，主电磁铁保持架孔沿副电磁铁驱动杆延伸方向延伸，机架上设有与主电磁铁保持架孔对应的主电磁铁固定孔，主电磁铁固定孔和主电磁铁保持架孔中至少一个为长孔，长孔沿抵顶配合部分与钩挂配合部分布置方向延伸，用于调整主电磁铁的固定位置。9. The spring operating mechanism according to claim 1, 2 or 3, wherein the holder of the secondary electromagnet is provided with a secondary electromagnet holder hole for fixing the secondary electromagnet, and the secondary electromagnet holder hole is provided on the holder of the secondary electromagnet. Extending along the extension direction of the auxiliary electromagnet drive rod, the frame is provided with auxiliary electromagnet fixing holes corresponding to the auxiliary electromagnet holder holes, and at least one of the auxiliary electromagnet fixing holes and the auxiliary electromagnet holder holes is a long hole. The hole extends along the arrangement direction of the abutting matching part and the hooking matching part, and is used to adjust the fixing position of the auxiliary electromagnet; and/or the main electromagnet holder is provided with a main electromagnet holder hole for fixing the main electromagnet, The main electromagnet holder hole extends along the extension direction of the auxiliary electromagnet drive rod, the frame is provided with a main electromagnet fixing hole corresponding to the main electromagnet holder hole, the main electromagnet fixing hole and the main electromagnet holder hole are at least One is a long hole, and the long hole extends along the arrangement direction of the abutting matching part and the hooking matching part, and is used to adjust the fixed position of the main electromagnet. 10.断路器，包括弹簧操动机构，其特征在于，所述弹簧操动机构为权利要求1-9任意一项所述的弹簧操动机构。10. A circuit breaker, comprising a spring operating mechanism, wherein the spring operating mechanism is the spring operating mechanism according to any one of claims 1-9.
CN201911327325.XA 2019-12-20 2019-12-20 Spring operating mechanism and circuit breaker Active CN111192766B (en)

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JPH0521789Y2 (en) * 1987-12-14 1993-06-04
CN2337667Y (en) * 1998-03-05 1999-09-08 高玉龙 Switching on-off electric magnet
CN103400711B (en) * 2013-08-19 2015-06-10 富英 High-power spring operation mechanism
CN104332334A (en) * 2014-10-30 2015-02-04 贵州长征开关制造有限公司 Novel self-locking driving structure of single rotating shaft of double-fragment automatic change-over switching device
CN204289139U (en) * 2014-12-04 2015-04-22 中国西电电气股份有限公司 A kind of breaker operation mechanism
CN205751904U (en) * 2016-06-27 2016-11-30 江苏明及电气股份有限公司 A detent shaft for circuit breaker spring operating mechanism
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CN109166741B (en) * 2018-09-12 2020-01-07 平高集团有限公司 A circuit breaker, a spring operating mechanism and its latch assembly
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CN110137045B (en) * 2019-04-25 2022-07-05 河南平高电气股份有限公司 Spring operating mechanism and circuit breaker using same

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