A disassembly and assembly device for energy storage spring of high voltage circuit breaker

Abstract

The utility model provides a high-voltage circuit breaker energy storage spring disassembly and assembly device, characterized in that it comprises at least two plug plates arranged in parallel, and a plurality of adjusting screws arranged in parallel between the at least two plug plates, and a plurality of nuts are arranged on each adjusting screw. The two plug plates are inserted into the two ends of the spring, and the two plug plates are stretched outward by the nuts on the adjusting screws, so that the energy storage spring is stretched outward to separate from the fixed pin shaft, and the energy storage spring can be removed. The whole operation process has the advantages of convenience, efficiency, labor saving, and safe operation.

Description

Technical Field

[0001] The utility model relates to a disassembly and assembly device, in particular to a disassembly and assembly device for an energy storage spring of a high-voltage circuit breaker, and belongs to the technical field of mechanical design and manufacturing. Background Art

[0002] As an important substation equipment for power supply and distribution, the 10kV high-voltage switchgear is mainly used to receive and distribute electric energy. In the long-term operation of high-voltage circuit breakers, due to factory defects, improper operation and other factors, it is very easy to cause defects such as deformation and breakage of the operating mechanism. For example, the eccentric shaft stop pin inside the circuit breaker is broken, the limit of the circuit breaker energy storage motor fails, and the energy storage motor runs idle, resulting in the circuit breaker being unable to store energy normally, and the circuit breaker cannot complete the normal opening and closing operations, which seriously affects the safe operation of the high-voltage switchgear equipment. To replace the damaged eccentric shaft inside the circuit breaker, it is necessary to disassemble the circuit breaker energy storage spring, chain, large gear and axle, and finally remove and replace the eccentric shaft. The current method of disassembling and assembling the energy storage spring is to manually operate the flat screwdriver to insert it into the energy storage spring, force the energy storage spring to both sides, and make it detach from the fixed pin shaft, and then remove the energy storage spring. If the force is slightly improper during the entire operation process, it will cause plastic deformation of the spring, resulting in a decrease in the spring strength, which will affect the closing performance of the circuit breaker. At the same time, this operation requires the cooperation of multiple people to complete, and the disassembly is difficult, dangerous, and inefficient. Therefore, it is necessary to improve the existing technology. Summary of the invention

[0003] In order to solve the problems of difficulty, high risk and low efficiency in replacing the internal energy storage spring of the existing high-voltage circuit breaker, the utility model provides a high-voltage circuit breaker energy storage spring disassembly and assembly device.

[0004] The utility model is completed through the following technical scheme: a high-voltage circuit breaker energy storage spring disassembly and assembly device, characterized in that it comprises at least two plug plates arranged in parallel, and a plurality of adjusting screws arranged in parallel between the at least two plug plates, each adjusting screw is provided with a plurality of nuts, so that at least two plug plates are inserted into the two ends of the energy storage spring, so that the at least two plug plates open the energy storage spring, and then the nuts on the two screws are adjusted to keep the at least two plug plates in the inserted state, and at the same time, the at least two plug plates are stably fixed on the energy storage spring, and the open energy storage spring is convenient for it to be separated from the fixed pin shaft, thereby completing the safe, fast and efficient disassembly and assembly of the energy storage spring.

[0005] The plug plate is configured as a strip-shaped flat plate with a wide front portion and a narrow rear portion. The width of the front portion of the plug plate is greater than the diameter of the energy storage spring, and the front end of the plug plate is configured as a pointed head. The rear portion of the plug plate is provided with through holes that match a plurality of adjusting screws so that the force bearing surface of the energy storage spring can be evenly balanced through the wider front portion of the plug plate, thereby avoiding the problem of plastic deformation of the energy storage spring.

[0006] The thickness of the tip at the front of the plug plate gradually increases from front to back to form a wedge shape, so as to facilitate insertion into the energy storage spring.

[0007] The multiple adjusting screws are arranged between the rear parts of at least two plug boards, and the two ends of each adjusting screw are sleeved with the corresponding through holes on the plug boards and extend outwardly. The multiple nuts are respectively arranged at the upper end, the lower end and the middle part of the adjusting screw, so that the nuts on the adjusting screws can be adjusted to adjust the plug board spacing, so that the plug boards can smoothly support the energy storage springs, and the nuts on the adjusting screws can be evenly stressed by adjusting the positions of the nuts, so as to avoid damage to the screw threads.

[0008] The utility model has the following advantages and effects: by adopting the above scheme, two plug plates are inserted into the two ends of the spring, and the two plug plates are stretched outward by adjusting the nut on the screw rod, so that the energy storage spring is stretched outward to separate from the fixed pin shaft, and the energy storage spring can be removed. The whole operation process has the advantages of convenience, efficiency, labor saving, and safe operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural diagram of the utility model. DETAILED DESCRIPTION

[0010] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0011] The utility model provides a high-voltage circuit breaker energy storage spring disassembly and assembly device, which comprises two plug plates 2 arranged in parallel, and two adjusting screws 3 arranged in parallel between the two plug plates 2, each adjusting screw 3 is provided with a plurality of nuts 5, so that the two plug plates 2 are inserted into the two ends of the energy storage spring 1, so that the two plug plates 2 open the energy storage spring 1, and then the nuts 5 on the two screws 3 are adjusted to keep the two plug plates 2 in the inserted state, and at the same time, the two plug plates 2 are stably fixed on the energy storage spring 1, and the opened energy storage spring 1 is convenient for it to be separated from the fixing pin shaft, thereby completing the safe, fast and efficient disassembly and assembly of the energy storage spring 1; the energy storage spring 1 is a conventional energy storage spring used on a high-voltage circuit breaker;

[0012] The plugboard 2 is configured as a strip-shaped flat plate with a wide front portion and a narrow rear portion. The front width of the plugboard 2 is greater than the diameter of the energy storage spring 1, and the front end of the plugboard 2 is configured as a pointed head. The rear portion of the plugboard 2 is provided with a through hole 4 matched with two adjusting screws 3, so that the force bearing surface of the energy storage spring 1 is evenly balanced through the wider front portion of the plugboard 2, thereby avoiding the problem of plastic deformation of the energy storage spring 1.

[0013] The thickness of the tip of the front part of the plug plate 2 gradually increases from front to back, forming a wedge shape, so as to facilitate insertion into the energy storage spring 1;

[0014] There are two adjusting screws 3, which are respectively arranged between the rear parts of the two plug plates 2. The two ends of each adjusting screw 3 are socketed with the through holes 4 on the corresponding plug plates 2 and extend outward. Multiple nuts 5 are arranged at the upper end, lower end and middle part of the adjusting screw 3, so that the spacing between the plug plates can be adjusted by adjusting the nuts 5 on the screws 3, so that the plug plates can smoothly support the energy storage spring 1, and the nuts 5 on the adjusting screws 3 can be evenly stressed by adjusting the positions of the nuts, so as to avoid damage to the threads of the screws 3.

[0015] Working principle: When disassembling the energy storage spring 1 of the high-voltage circuit breaker, first insert the front parts of the two plug plates 2 into the two ends of the energy storage spring 1 respectively, and then adjust the bolts 5 on the front and rear screw rods 3 to drive the two plug plates 2 to support outward or close inward, thereby realizing the stretching and resetting of the energy storage spring 1.

[0016] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0017] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high voltage circuit breaker energy storage spring disassembly and assembly device, characterized in that It comprises at least two plug-in plates arranged in parallel, and a plurality of adjusting screws arranged in parallel between the at least two plug-in plates, and each adjusting screw is provided with a plurality of nuts; The plug plate is configured as a strip-shaped flat plate with a wide front and a narrow rear. The front width of the plug plate is greater than the diameter of the energy storage spring, and the front end of the plug plate is configured as a pointed head. The rear of the plug plate is provided with through holes matched with a plurality of adjusting screws.

2. The high-voltage circuit breaker energy storage spring disassembly and assembly device according to claim 1, characterized in that The thickness of the tip at the front of the inserting plate gradually increases from front to back to form a wedge shape.

3. The high-voltage circuit breaker energy storage spring disassembly and assembly device according to claim 1, characterized in that The multiple adjusting screws are arranged between the rear parts of at least two plug boards, the two ends of each adjusting screw are sleeved with the corresponding through holes on the plug boards and extend outwards, and the multiple nuts are respectively arranged at the upper end, the lower end and the middle part of the adjusting screw.

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