CN211376462U

CN211376462U - Circuit breaker closing spring replacing tool capable of being assembled, disassembled and disassembled

Info

Publication number: CN211376462U
Application number: CN202020125538.6U
Authority: CN
Inventors: 李起荣; 沈燚; 李学福; 刘晓明; 杨桥伟; 张弄韬
Original assignee: Chuxiong Power Supply Bureau of Yunnan Power Grid Co Ltd
Current assignee: Chuxiong Power Supply Bureau of Yunnan Power Grid Co Ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-08-28
Anticipated expiration: 2030-01-20

Abstract

The utility model discloses a circuit breaker closing spring replacement tool capable of being assembled, disassembled and assembled, which comprises a base, a support column, a sleeve, a support plate, a lifting nut, a screw rod, a traction rope and a suspension rod, wherein 2 bases are respectively fixed with a support column, the sleeve is sleeved on the support column and is fixed through a positioning piece, the support plate is fixed at the top ends of 2 sleeves, the support plate is provided with a screw hole I, the screw rod is arranged in the screw hole I and is in threaded fit with the screw hole I, the lifting nut is fixed at the upper end of the screw rod and is positioned above the support plate, the traction rope is fixed at the bottom end of the screw rod, two ends of the traction rope are respectively connected with a fixing ring, and 2; this device simple structure, easy operation has solved the problem that current traditional assembly and disassembly tools can't dismantle the spring of inside and outside double-deck type, has saved manpower and materials, avoids the emergence of incident.

Description

Circuit breaker closing spring replacing tool capable of being assembled, disassembled and disassembled

Technical Field

The utility model belongs to the technical field of electrical equipment, concretely relates to circuit breaker combined floodgate spring that can assemble and disassemble changes instrument.

Background

An ac high-voltage vacuum circuit breaker plays an important role as an important device for breaking a circuit in a power system. Most circuit breakers used in a factory station at present adopt a spring mechanism, but the spring mechanism has the defect that the spring is easy to fatigue after being used for a long time, so that the switching-on characteristic of the circuit breaker cannot meet the technical requirement, the circuit breaker spring is fatigue and soft, the movement speed of a contact of the circuit breaker is slow, the switching-on vibration of the contact is caused, the pre-breakdown time is overlong, the arc burning time is overlong, the internal pressure of the circuit breaker is increased, and the potential safety hazard of equipment is caused.

The 35kV spring mechanism circuit breaker is compact in structure, most of the circuit breakers are arranged in a switch cabinet, the space in the cabinet is narrow, the difficulty of replacement operation of an energy storage spring is often caused to rise linearly, and for an alternating current high-voltage vacuum circuit breaker provided with an inner-layer spring and an outer-layer spring, a special workbench is assembled in a factory, and a special tool is not assembled after the circuit breaker leaves the factory, so that the spring is extremely difficult to disassemble and assemble due to the fact that no special replacement tool is arranged in the circuit breaker cabinet, and the energy storage spring for closing; the defect that a breaker spring is fatigue can be only treated by a method for replacing the breaker, and a closing spring of the vacuum breaker with the double-layer spring and with the service life of more than 10 years can be replaced by a power failure opportunity, so that safety accidents are avoided, and a large amount of manpower and material resources are consumed.

Disclosure of Invention

The utility model provides a not enough to prior art, the utility model provides a circuit breaker combined floodgate spring change instrument that can assemble and disassemble has solved the problem that can't carry out the dismantlement to the spring of inside and outside double-deck type.

The utility model discloses the purpose of instrument is realized through following technical scheme:

this but assembly disassembly's circuit breaker combined floodgate spring change instrument includes the base, the support column, the sleeve, a supporting plate, the lifting nut, the screw rod, the haulage rope, hang the pole, be fixed with a support column on 2 bases respectively, sleeve cover dress is fixed on the support column and through the setting element, the backup pad is fixed on 2 sleeve tops, open threaded hole I in the backup pad, the screw rod setting in screw hole I and with I screw-thread fit of screw hole, the lifting nut is fixed in the screw rod upper end and is located the backup pad top, the haulage rope is fixed in the screw rod bottom, be connected with a solid fixed ring on the both ends of haulage rope respectively, 2 solid fixed rings hang on hanging the.

The base is a stainless steel square body.

The supporting plate is a cuboid.

The support column is a cylinder, and the sleeve is a hollow cylinder.

The haulage rope is the galvanized steel cable.

The locating piece comprises a fastening bolt and a plurality of threaded holes II which are matched with the fastening bolt and are formed in the supporting column, and the fixing piece is used for adjusting the relative position of the supporting column and the sleeve and further adjusting the height of the supporting plate.

The utility model discloses the device pulls the haulage rope through the screw rod, can realize the quick replacement to the combined floodgate energy storage spring that appears tired soft in the circuit breaker mechanism, and this device simple structure, easy operation has solved the problem that current traditional assembly and disassembly tools can't carry out the dismantlement to the spring of inside and outside double-deck type, has saved manpower and materials, avoids the emergence of incident.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor;

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

in the figure: 1-a base; 2-a support column; 3-a sleeve; 4-a support plate; 5-a positioning member; 6-lifting the nut; 7-a screw; 8-a threaded hole I; 9-a through hole; 10-a spring prepared hole; 11-a hauling rope; 12-a circuit breaker mechanism; 13-a suspension bar; 14-axle pin; 15-closing spring.

Detailed Description

The present invention will be described in further detail with reference to the following examples, but the scope of the present invention is not limited to the above description.

Example 1: as shown in figure 1, the tool for replacing the closing spring of the circuit breaker capable of being assembled and disassembled comprises a base 1, a support column 2, a sleeve 3, a support plate 4, a lifting nut 6, a screw rod 7, a traction rope 11 and a suspension rod 13, wherein the base 1 is a stainless steel square body, the support column 2 is respectively fixed on 2 bases 1, the support column 2 is a cylinder, the sleeve 3 is a hollow cylinder, the sleeve 3 is sleeved on the support column 2, 4 threaded holes II are formed in the support column 2, fastening bolts are arranged on the sleeve 3 and matched with the threaded holes II in the support column 2 and used for adjusting the position of the sleeve and fixing the sleeve, the support plate 4 is fixed at the top ends of the 2 sleeves 3, the support plate 4 is a cuboid, a threaded hole I8 is formed in the support plate 4, the screw rod 7 is arranged in the threaded hole I8 and is in threaded fit with the threaded hole I, the haulage rope is the galvanized steel cable, and haulage rope 11 is fixed in screw rod 7 bottom, is connected with a solid fixed ring respectively on the both ends of

haulage rope

11, and 2 solid fixed rings hang on hanging rod 13 both ends, and the hanging rod is the stainless steel stick.

The method for using the device on site comprises the following steps:

the first step is as follows: before replacement, the breaker mechanism 12 needs to be adjusted to a brake-separating non-energy-storage state, and the breaker mechanism releases energy;

the second step is that: the device is placed on the circuit breaker mechanism through the base 1 and is positioned above a through hole 9 in the top of the circuit breaker mechanism, the traction rope 11 penetrates through the through hole 9 to enter the circuit breaker mechanism, the condition of the steel rope is checked in time before the steel rope is penetrated, and if serious strand scattering and strand breaking conditions are found, the intact galvanized steel rope is replaced in time;

the third step: the suspension rod 13 penetrates into a spring preformed hole 10 of a closing energy storage spring of the circuit breaker, and then fixing rings at two ends of the traction rope 11 are sleeved on and fixed at two ends of the suspension rod 13;

the fourth step: the screw rod can be rotated to pull up the spring by rotating the lifting nut 6 by a spanner;

the fifth step: in the lifting process of the screw 7, attention should be paid to the lifting condition of the closing spring 15, and when the upper shaft pin 14 is not stressed any more or becomes loose, the lifting process is stopped in time, and the shaft pin 14 can be tried to be pushed out; in the process, the lifting height needs to be continuously adjusted, and the overstretch closing spring is switched off to cause the galvanized steel wire rope to be broken under stress, so that workers are accidentally injured;

and a sixth step: after the upper shaft pin is withdrawn, the spring is taken out from the energy storage rocker arm at the lower part, and when the spring is taken out from the energy storage rocker arm at the lower part, the closing energy storage spring at the inner side of the circuit breaker operating mechanism is difficult to avoid being blocked by the metal partition plate because the metal partition plate at the two sides has a relatively compact distance, and at the moment, the circuit breaker energy storage rocker arm can be downwards rotated by using a pipe wrench or a special closing wrench, and when the closing spring is rotated to be horizontal and close to the outer side, the closing spring is taken out and is not blocked by the metal partition plate.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a can assemble circuit breaker closing spring change instrument of dismantling which characterized in that: including base (1), support column (2), sleeve (3), backup pad (4), lifting nut (6), screw rod (7), haulage rope (11), hang pole (13), be fixed with one support column (2) on 2 individual base (1) respectively, sleeve (3) suit is on support column (2) and fixed through setting element (5), backup pad (4) are fixed on 2 sleeve (3) tops, open threaded hole I (8) on backup pad (4), screw rod (7) set up in threaded hole I (8) and with I screw-thread fit in the threaded hole, lifting nut (6) are fixed in screw rod (7) upper end and are located backup pad (4) top, haulage rope (11) are fixed in screw rod (7) bottom, be connected with a solid fixed ring on the both ends of haulage rope (11) respectively, 2 solid fixed rings hang on pole (13) both ends.

2. The tool for replacing a closing spring of an assembly-disassembly circuit breaker according to claim 1, wherein: the base (1) is a stainless steel square body.

3. The tool for replacing a closing spring of an assembly-disassembly circuit breaker according to claim 1, wherein: the supporting plate (4) is a cuboid.

4. The tool for replacing a closing spring of an assembly-disassembly circuit breaker according to claim 1, wherein: the supporting column (2) is a cylinder, and the sleeve (3) is a hollow cylinder.

5. The tool for replacing a closing spring of an assembly-disassembly circuit breaker according to claim 1, wherein: the positioning piece (5) comprises a fastening bolt and a plurality of threaded holes II which are matched with the fastening bolt and are formed in the supporting column (2), and the fixing piece is used for adjusting the relative position of the supporting column and the sleeve and further adjusting the height of the supporting plate.

6. The tool for replacing a closing spring of an assembly-disassembly circuit breaker according to claim 1, wherein: the haulage rope is the galvanized steel cable.