CN215220536U

CN215220536U - Closing pawl for high-voltage switch

Info

Publication number: CN215220536U
Application number: CN202121747056.5U
Authority: CN
Inventors: 章麒英
Original assignee: Ningbo Jiangbei Hongsheng High Voltage Electrical Hydraulic Machinery Co ltd
Current assignee: Ningbo Jiangbei Hongsheng High Voltage Electrical Hydraulic Machinery Co ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2021-12-17
Anticipated expiration: 2031-07-29

Abstract

The utility model discloses a closing pawl for a high-voltage switch, which comprises an operating mechanism for controlling the high-voltage switch to close, a rotating shaft for driving the operating mechanism to rotate is arranged on the operating mechanism, a main shaft part of the switch circuit breaker is arranged on one side of the operating mechanism, and the main shaft part of the switch breaker is provided with a pawl component which is provided with an adjusting component for preventing the brake opening phenomenon when the operating mechanism is switched on, and the high-voltage switch is used for switching on the pawl, the operating mechanism and the pawl component are prevented from being leaked when the operating mechanism and the pawl component are switched on through the adjusting component, the secondary retaining pawl is protected by a protective sleeve arranged on the secondary retaining pawl, and a sliding piece on the protective sleeve slides in a sliding groove on the operating mechanism, meanwhile, the arc-shaped clamping groove prevents the switching-off phenomenon between the arc-shaped clamping groove and the arc-shaped clamping groove, so that the aim of preventing the switching-on leakage phenomenon after switching-on is fulfilled.

Description

Closing pawl for high-voltage switch

Technical Field

The utility model relates to a combined floodgate pawl technical field specifically is a high tension switchgear is with combined floodgate pawl.

Background

With the continuous improvement of living standard of people, the electricity consumption of society increases year by year, which puts higher requirements on the safe operation of the power grid, and the operation safety of the power grid is closely related to the reliability of power equipment. The high-voltage switch, especially the disconnecting switch and the grounding switch are used as main switch equipment in a power grid system, the operation reliability of the high-voltage switch plays a vital role in the safe operation of the power grid, and the high-voltage switch mechanism is important equipment for realizing the switching-off and switching-on operations of the high-voltage switch.

When closing a floodgate to high tension switchgear, closing spring release energy after the energy storage, the energy of closing spring release transmits respectively for output transmission shaft and separating brake spring, separating brake spring energy storage, output transmission shaft drives each moving contact combined floodgate simultaneously, because current high tension switchgear's combined floodgate pawl is after long-time work, the pawl surface receives wearing and tearing, make it appear closing the back both branch phenomenon when closing the floodgate during operation, also call the hourglass phenomenon of closing, then can cause the damage for high tension switchgear's operation, and change between closing a floodgate and separating brake many times, then can make electronic component's life receive the influence, for this reason, we propose a high tension switchgear with combined floodgate pawl.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high tension switchgear is with combined floodgate pawl to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high tension switchgear is with closing pawl, is including being used for controlling high tension switchgear and carrying out the operating device who closes a floodgate, just operating device is last to be provided with and to be used for driving operating device and carry out the pivoted pivot, operating device one side is provided with switch circuit breaker main shaft, just be provided with the pawl subassembly on the switch circuit breaker main shaft, just be provided with the adjustment subassembly that is used for preventing operating device from appearing the phenomenon of separating brake when closing a floodgate on the pawl subassembly to avoid appearing leaking the phenomenon of closing.

Preferably, the latch assembly is composed of a primary holding latch and a secondary holding latch, the adjusting assembly is disposed on the secondary holding latch, and the operating mechanism maintains a closing state by sliding the secondary holding latch at an angle, so that the closing is fixed by forming an angle between the latch assembly and the operating mechanism.

Preferably, the adjusting assembly comprises a protective sleeve mounted on the secondary retaining pawl, a sliding part is arranged on the protective sleeve, a sliding groove used for enabling the sliding part to move directionally is formed in the operating mechanism, arc-shaped clamping grooves used for clamping the sliding part to prevent the sliding part from being opened are formed in two ends of the sliding groove, so that the sliding part is fixed through the arc-shaped clamping grooves to prevent the sliding part from being opened, and only the protective sleeve needs to be replaced when the sliding part is worn in long-term use.

Preferably, the sliding part is a roller, and the roller is used for being clamped with the arc-shaped sliding groove, so that the secondary retaining pawl and the operating mechanism form an angle for fixing to prevent the phenomenon of switching off, and the phenomenon of sliding again after switching on is prevented.

Preferably, the sliding part is used for being changed into a sliding block when an operating mechanism formed by a single high-voltage switch is switched on, so that the sliding block can slide on the operating mechanism more stably, and the switching-on operation under different conditions is suitable.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses an adjustment subassembly makes operating device and pawl subassembly carry out the combined floodgate during operation prevent that it from appearing leaking the phenomenon of closing, keeps the protective sheath on the pawl to protect it through setting up in the second grade, and the spout of the slider on the protective sheath on operating device slides, and the arc draw-in groove prevents to appear separating brake phenomenon between the two simultaneously to reach and prevent to appear leaking the mesh that closes the phenomenon after closing a floodgate.

2. The utility model discloses set up the protective sheath, after pawl subassembly and operating device contacted for a long time and made its surface appear wearing and tearing, only need to change the protective sheath and need not change the pawl body again to its cost has been reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a partial structure of the present invention;

fig. 3 is a schematic structural view of a first sliding member of the present invention;

fig. 4 is a schematic structural view of a second sliding member according to the present invention.

In the figure: 1-an operating mechanism; 2-a rotating shaft; 3-switching the circuit breaker main shaft; 4-a catch assembly; 5-adjusting the assembly; 6-a nut; 41-primary retention detent; 42-secondary retention detent; 51-a protective sleeve; 52-a slide; 53-chute; 54-an arc-shaped clamping groove; 521-a roller; 522-slide block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a high-voltage switch uses the closing pawl, this scheme has solved the existing high-voltage switch and closed the situation that both ends after closing when carrying on the closing operation, because the existing pawl assembly 4 after carrying on the closing operation for a long time, its surface will receive certain wearing and tearing, make it easy to appear the slip situation when carrying on the closing operation with the angle of operating device 1, make the closing operation appear and already separate the phenomenon after closing, thus influence the work needing to close subsequently, this scheme carries on the corresponding improvement to the above-mentioned problem, the operating device 1 in this scheme is mounted on spindle 2, and operating device 1 one side has main shaft of the switch breaker 3, wherein the main shaft of the switch breaker 3 is fitted with the pawl assembly 4 used for forming certain angle with operating device 1 and carrying on the closing operation, so as to make when the main shaft of the switch breaker 3 drives the pawl assembly 4 to rotate, extrusion operating device 1 rotates on pivot 2, when rotating to certain angle, it fixes to form certain angle between operating device 1 and the pawl subassembly 4, and pivot 2 rotates and makes the closing spring give and connect between the conducting rod, thereby realize combined floodgate work, in order to avoid pawl subassembly 4 to carry out contact friction for a long time with operating device and make the phenomenon of leaking to close between the two, this scheme has set up adjusting part 5 on pawl subassembly 4, so that fix when closing a floodgate between operating device 1 and the pawl subassembly 4 through adjusting part 5, the phenomenon of separating brake appears after the work of closing a floodgate is accomplished.

The pawl component 4 in the scheme is composed of a first-stage retaining pawl 41 and a second-stage retaining pawl 42, wherein the first-stage retaining pawl 41 and the operating mechanism 1 only perform friction on one surface, the second-stage retaining pawl 42 and the operating mechanism 1 perform friction on two perpendicular surfaces, when the operating mechanism 1 rotates through the rotating shaft 2, the first-stage retaining pawl 41 does not contact with the operating mechanism 1 after rotating for a certain angle, the closing operation is performed by fixing the second-stage retaining pawl 42 and the operating mechanism 1 by forming a certain angle, the operating mechanism 1 is provided with a sliding groove 53 for sliding connection with the pawl component 4, two ends of the sliding groove 53 are provided with arc-shaped clamping grooves 54 for clamping and fixing the second-stage retaining pawl 42, one end of the arc-shaped clamping grooves 54 forms a certain angle with the inner wall thereof, so as to prevent the second-stage retaining pawl 42 from sliding off, when the switching-on operation of a plurality of high-voltage switches is performed, the adjustment assembly 5 in the present embodiment includes a protective sleeve 51 installed on the secondary retaining pawl 42, and the protective sleeve 51 is connected with the secondary retaining pawl 42 through a nut 6, so that the protective sleeve 51 can be replaced by twisting the nut 6 after the protective sleeve 51 is worn, without replacing the pawl, thereby reducing unnecessary cost, and a sliding member 52 is provided on the protective sleeve 51, the sliding member 52 in the present embodiment can be configured as a roller 521 or a slider 522, and when a plurality of high-voltage switches are performed, the roller 521 can be configured as a roller 521 for ensuring the uniformity of the switching-on operation, the switch disconnecting main shaft drives the pawl assembly 4 to rotate, so that the roller 521 on the protective sleeve 51 slides on the sliding slot 53, and when the roller 521 slides to the arc-shaped slots 54 at both ends of the sliding slot 53, the roller 521 falls into the arc-shaped slots 54, because arc draw-in groove 54 forms certain angle rather than the inner wall, and then need exert the effort of backward motion when making gyro wheel 521 retreat, by high-voltage switch combined floodgate can know, after high-voltage switch combined floodgate, can not move between the two this moment, and then this arc draw-in groove 54 makes its separating brake phenomenon appear in order to prevent slider 52 self-motion, when gyro wheel 521 card is in arc draw-in groove 54, the work of closing floodgate was accomplished this moment, separating brake phenomenon appears after avoiding closing a floodgate to accomplish, when closing a floodgate work to single high-voltage switch, can set slider 52 into slider 522, because the area of contact of slider 522 and spout 53 is wide, and then make when sliding more steady, increase its stability of carrying out closing a floodgate work.

According to the scheme, the phenomenon of missing closing during the closing work of the catch component 4 and the operating mechanism 1 is prevented through the adjusting component 5, a closing button on a high-voltage switch is pressed, the main shaft part 3 of the switch circuit breaker is rotated through the existing link mechanism, the catch component 4 is driven to rotate, so that the operating mechanism 1 is extruded to rotate, the rotating shaft 2 synchronously rotates along with the rotating button, the conducting rod is driven to move relatively through the existing closing spring while the rotating shaft rotates, the primary holding catch 41 leaves the surface of the operating mechanism 1 after sliding on the operating mechanism 1 for a certain angle, the secondary holding catch 42 starts to slide from the operating mechanism 1, as the protective sleeve 51 is mounted on the secondary holding catch 42 through the nut 6, and then slides on the sliding chute 53 through the sliding component 52 on the protective sleeve 51, when the sliding component 52 slides to the arc-shaped clamping groove 54 on the sliding chute 53, because a certain angle is formed between the arc-shaped clamping groove 54 and the inner wall thereof, the sliding part 52 is clamped in the arc-shaped clamping groove, the sliding between the operating mechanism 1 and the pawl assembly 4 is prevented, so that the closing state is relieved, a certain additional force needs to be applied when the sliding part 52 needs to leave from the inside of the arc-shaped clamping groove 54, and then when the opening is needed, the sliding part 52 can leave from the arc-shaped clamping groove 54 by the additional force applied by the connecting rod mechanism, so that the aim of avoiding the phenomenon of closing leakage is fulfilled.

It is noted that, herein, 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.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high tension switchgear is with closing pawl, includes operating device (1) that is used for controlling high tension switchgear to close a floodgate, and be provided with on operating device (1) and be used for driving operating device (1) and carry out pivoted pivot (2), its characterized in that: the automatic switching device is characterized in that a main shaft part (3) of the switch breaker is arranged on one side of the operating mechanism (1), a pawl assembly (4) is arranged on the main shaft part (3) of the switch breaker, and an adjusting assembly (5) used for preventing the switching-off phenomenon from occurring when the operating mechanism (1) is switched on is arranged on the pawl assembly (4).

2. The closing pawl according to claim 1, wherein: the catch assembly (4) is composed of a primary holding catch (41) and a secondary holding catch (42), the adjusting assembly (5) is arranged on the secondary holding catch (42), and the operating mechanism (1) keeps a closing state by sliding at a certain angle with the secondary holding catch (42).

3. A closing pawl according to claim 2, wherein: the adjusting assembly (5) comprises a protective sleeve (51) arranged on the secondary retaining pawl (42), a sliding piece (52) is arranged on the protective sleeve (51), a sliding groove (53) used for enabling the sliding piece (52) to move directionally is arranged on the operating mechanism (1), and arc-shaped clamping grooves (54) used for clamping the sliding piece (52) to prevent the sliding piece (52) from being opened are formed in two ends of the sliding groove (53), so that the sliding piece (52) is fixed through the arc-shaped clamping grooves (54) to prevent the sliding piece (52) from being opened.

4. A closing pawl according to claim 3, wherein: the sliding part (52) is a roller (521), and the roller (521) is used for being clamped with the arc-shaped sliding groove (53) so that the secondary retaining catch (42) and the operating mechanism (1) form an angle for fixing to prevent the opening phenomenon.

5. The closing pawl according to claim 4, wherein: the sliding piece (52) is used for being changed into a sliding block (522) when the operating mechanism (1) formed by a single high-voltage switch is switched on, so that the sliding block (522) can slide on the operating mechanism (1) more stably.