10kv switch cabinet energy storage spring dismounting device

Abstract

The application discloses a dismounting device for a 10kV switch cabinet energy storage spring, which comprises a pulling mechanism and two clamping plates capable of clamping opposite ends of the energy storage spring, the pulling mechanism comprises a telescopic cylinder, a fixing sleeve and a pulling rod, the telescopic cylinder is provided with a cylinder body and a telescopic rod connected with the cylinder body, the fixing sleeve is arranged outside the telescopic rod, one end of the fixing sleeve is fixedly connected with the cylinder body, one end of the pulling rod is connected with one end of the telescopic rod away from the cylinder body, and one end of the pulling rod extends to the outside of the fixing sleeve, one of the clamping plates is fixed on the fixing sleeve, and the other clamping plate is fixed on one end of the pulling rod extending to the outside of the fixing sleeve, and the cylinder body can drive the pulling rod to extend or retract relative to the fixing sleeve through the telescopic rod, so that the distance between the two clamping plates is increased or reduced. The both ends of the energy storage spring can be elongated, and the dismounting difficulty of the energy storage spring is reduced.

Description

Technical Field

[0001] This invention relates to the field of power system maintenance tools, and in particular to a disassembly and assembly device for a 10kV switchgear energy storage spring. Background Technology

[0002] Among substation maintenance equipment, 10kV switchgear is the most frequently inspected and repaired. When replacing coils or motors in most 10kV switchgear, the energy storage springs need to be removed first. The two ends of the energy storage spring are fixed to two fasteners, which keep the spring in a stretched state. Even when the spring is not storing energy, it still has a certain pre-tension force. Because of this pre-tension force, removing the energy storage spring is difficult and time-consuming. Although some tools exist for removing energy storage springs, their structure is limited and cannot meet the needs of most users. Summary of the Invention

[0003] The purpose of this invention is to provide a disassembly and assembly device for a 10kV switchgear energy storage spring, which can stretch both ends of the energy storage spring, thereby reducing the difficulty of disassembling and assembling the energy storage spring.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A device for disassembling and assembling a 10kV switchgear energy storage spring is provided, comprising a pulling mechanism and two locking plates capable of engaging with opposite ends of the energy storage spring. The pulling mechanism includes a telescopic cylinder, a fixed sleeve, and a pulling rod. The telescopic cylinder has a cylinder body and a telescopic rod connected to the cylinder body. The fixed sleeve is sleeved on the outside of the telescopic rod, and one end of the fixed sleeve is fixedly connected to the cylinder body. One end of the pulling rod is connected to the end of the telescopic rod away from the cylinder body, and one end of the pulling rod extends out of the fixed sleeve. One locking plate is fixed to the fixed sleeve, and the other locking plate is fixed to the end of the pulling rod extending out of the fixed sleeve. The cylinder body can drive the pulling rod to extend or retract relative to the fixed sleeve through the telescopic rod to increase or decrease the distance between the two locking plates.

[0006] As a preferred technical solution for the disassembly and assembly device of the 10kV switchgear energy storage spring, a connecting arm is provided on the outer side of the fixing sleeve and the outer side of the pulling rod, and the two clamping plates are respectively detachably installed on the connecting arm through the mounting parts.

[0007] As a preferred technical solution for the disassembly and assembly device of the 10kV switchgear energy storage spring, the mounting component is a screw, the connecting arm is provided with a threaded hole, the clamping plate is provided with an installation hole corresponding to the threaded hole, and the screw passes through the installation hole and is tightened in the threaded hole.

[0008] As a preferred technical solution for the disassembly and assembly device of the 10kV switchgear energy storage spring, the card plate has a snap-fit ​​part and a mounting part protruding from one side of the snap-fit ​​part. The snap-fit ​​part is recessed and has a snap-fit ​​groove for snapping with the energy storage spring. The mounting hole is provided on the mounting part.

[0009] As a preferred technical solution for the disassembly and assembly device of the 10kV switchgear energy storage spring, the mounting part has a body and a boss. The boss is connected to the snap-fit ​​part through the body. The thickness of the boss is less than the thickness of the body. A limiting step is formed between the boss and the body. The limiting step is located on the side of the mounting part closer to the cylinder.

[0010] As a preferred technical solution for the disassembly and assembly device of the 10kV switchgear energy storage spring, a protective layer is provided on the inner side wall of the snap-fit ​​groove.

[0011] As a preferred technical solution for the disassembly and assembly device of the 10kV switchgear energy storage spring, a guide assembly is provided between the fixed sleeve and the pull rod.

[0012] As a preferred technical solution for the disassembly and assembly device of the 10kV switchgear energy storage spring, the guide assembly includes a guide groove and a guide slider that slides inside the guide groove. The guide groove is disposed on the inner side wall of the fixed sleeve, and the guide slider protrudes from the outer side of the pull rod. Both the guide groove and the guide slider extend along the axial direction of the fixed sleeve.

[0013] As a preferred technical solution for the disassembly and assembly device of the 10kV switchgear energy storage spring, the distance between the two connecting arms is adjustable.

[0014] As a preferred technical solution for the disassembly and assembly device of the 10kV switchgear energy storage spring, both the fixed sleeve and the pull rod are provided with external threads. The external threads extend along the axial direction of the fixed sleeve or along the axial direction of the pull rod. The connecting arm is provided with a connecting hole. The inner sidewall of the connecting hole has an internal thread that screws into the external threads. One of the connecting arms is screwed onto the fixed sleeve through the connecting hole, and the other connecting arm is screwed onto the pull rod through the connecting hole.

[0015] The beneficial effects of this invention are as follows: When disassembling and assembling the energy storage spring, two clamping plates are respectively clamped to both ends of the energy storage spring. The lifting cylinder drives the pulling rod to extend, which drives the clamping plates on the pulling rod to move, increasing the distance between the two clamping plates, thereby stretching the energy storage spring and overcoming the pre-tension force of the energy storage spring. Then the energy storage spring is disassembled and assembled. This disassembly and assembly device can effectively reduce the difficulty of disassembling and assembling the energy storage spring and is conducive to improving the disassembly and assembly efficiency of the energy storage spring. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the disassembly and assembly device for the 10kV switchgear energy storage spring described in the embodiment.

[0018] Figure 2 This is a diagram showing the connection structure between the pull rod and the fixed sleeve in Embodiment 2.

[0019] Figure 3 This is a schematic diagram of the card plate described in Embodiment 1.

[0020] Figure 4 This is a schematic diagram of the card plate described in Embodiment 2.

[0021] Figure 5 This is a schematic diagram of the mounting portion of the card plate in Embodiment 3.

[0022] Figure 6 This is a schematic diagram of the connecting arm described in Embodiment 2.

[0023] In the picture:

[0024] 1. Fixed sleeve; 2. Telescopic cylinder; 21. Cylinder body; 22. Telescopic rod; 23. Control component; 3. Connecting arm; 31. Threaded hole; 32. Connecting hole; 33. Internal thread; 4. Guide assembly; 41. Guide slider; 5. Pull rod; 6. Clamping plate; 61. Clamping part; 611. Clamping groove; 62. Mounting part; 621. Mounting hole; 622. Limiting step; 623. Body; 624. Boss; 63. Protective layer; 631. Anti-slip protrusion. Detailed Implementation

[0025] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] like Figure 1 As shown, the present invention provides a disassembly and assembly device for a 10kV switchgear energy storage spring (hereinafter referred to as the disassembly and assembly device), including a pulling mechanism and two clamping plates 6 that can be engaged with the opposite ends of the energy storage spring. The pulling mechanism includes a telescopic cylinder 2, a fixed sleeve 1, and a pulling rod 5. The telescopic cylinder 2 has a cylinder body 21 and a telescopic rod 22 connected to the cylinder body 21. The fixed sleeve 1 is sleeved on the outside of the telescopic rod 22, and one end of the fixed sleeve 1 is fixedly connected to the cylinder body 21. One end of the pulling rod 5 is connected to the end of the telescopic rod 22 away from the cylinder body 21. The pulling rod 5 extends out of the fixed sleeve 1. One clamping plate 6 is fixed on the fixed sleeve 1, and the other clamping plate 6 is fixed to the end of the pulling rod 5 that extends out of the fixed sleeve 1. The cylinder body 21 can drive the pulling rod 5 to extend and retract relative to the fixed sleeve 1 through the telescopic rod 22 to increase or decrease the distance between the two clamping plates 6.

[0029] When disassembling and assembling the energy storage spring, two clamping plates 6 are respectively clamped to both ends of the energy storage spring. The telescopic cylinder 2 drives the pulling rod 5 to extend, which drives the clamping plates 6 on the pulling rod 5 to move, increasing the distance between the two clamping plates 6, thereby stretching the energy storage spring and overcoming the pre-tension force of the energy storage spring. Then the energy storage spring is disassembled and assembled. This disassembly and assembly device can effectively reduce the difficulty of disassembling and assembling the energy storage spring and is conducive to improving the efficiency of disassembly and assembly of the energy storage spring.

[0030] The outer side of the fixed sleeve 1 and the outer side of the pull rod 5 are both provided with connecting arms 3. The two clamping plates 6 are respectively detachably installed on the connecting arms 3 through the mounting parts, so that the clamping plates 6 and the connecting arms 3 on the pull rod 5 can be detachably connected, which facilitates the assembly of the disassembly and assembly device.

[0031] Reference Figure 1 In this embodiment, the mounting component is a screw (not shown in the figure). A threaded hole 31 is provided through the connecting arm 3, and a mounting hole 621 is provided through the corresponding threaded hole 31 on the clamping plate 6. The screw passes through the mounting hole 621 and is tightened into the threaded hole 31. The clamping plate 6 is tightened onto the connecting arm 3 by screws, resulting in a robust structure and relatively easy assembly. Of course, in other embodiments, the clamping plate 6 can also be welded onto the connecting arm 3.

[0032] To facilitate operation of the telescopic cylinder 2, a control component 23 is provided on the cylinder body 21. The control component 23 can be a control handle or a control button. In this embodiment, the telescopic cylinder 2 is a hydraulic telescopic cylinder; in another embodiment, it can also be a pneumatic telescopic cylinder.

[0033] Reference Figure 3 and Figure 5 In one embodiment, the card plate 6 has a snap-fit ​​portion 61 and a mounting portion 62 protruding from one side of the snap-fit ​​portion 61. The snap-fit ​​portion 61 is recessed and has a snap-fit ​​groove 611 for snapping with the energy storage spring, and a mounting hole 621 is provided on the mounting portion 62. Specifically, the snap-fit ​​groove 611 is an arc-shaped groove. In use, both ends of the energy storage spring are snapped into the snap-fit ​​grooves 611 of the two card plates 6 respectively, and the snap-fit ​​grooves 611 are configured to provide snap-fit ​​space for the energy storage spring.

[0034] Among them, reference Figure 5 The mounting part 62 has a body 623 and a boss 624. The boss 624 is connected to the snap-fit ​​part 61 through the body 623. The thickness of the boss 624 is less than the thickness of the body 623. A limiting step 622 is formed between the boss 624 and the body 623. The limiting step 622 is located on the side of the mounting part 62 near the cylinder 21. In this type of mounting part 62, due to the presence of the upper limit step 622 on the boss 624, during the process of connecting the clamping plate 6 and the connecting arm 3, the side of the boss 624 near the cylinder 21 is first placed on the side of the connecting arm 3 away from the cylinder 21. Then, the boss 624 is pushed towards the connecting arm 3 so that the upper limit step 622 abuts against the free end of the connecting arm 3, thereby aligning the mounting hole 621 with the threaded hole 31. Then, the screw is passed through the mounting hole 621 and tightened in the threaded hole 31 to achieve the connection between the clamping plate 6 and the connecting arm 3. This design, with the assistance of the upper limit step 622, can quickly align the mounting hole 621 with the threaded hole 31, which is conducive to the rapid assembly of the clamping plate 6 and the connecting arm 3.

[0035] Reference Figure 4It is understandable that, due to the existence of friction, when the clamping plate 6 is clamped onto the energy storage spring, the clamping plate 6 will scratch the energy storage spring, causing wear on the protective layer on the outer surface of the energy storage spring. To address this, a protective layer 63 is provided on the inner wall of the clamping groove 611. The protective layer 63 is made of elastic rubber material, which has a certain elastic deformation effect. When the clamping plate 6 is clamped onto the energy storage spring, the protective layer 63 in the clamping groove 611 makes elastic contact with the energy storage spring, preventing the clamping plate 6 from scraping off the protective layer on the outer surface of the energy storage spring.

[0036] Preferably, the outer surface of the protective layer 63 is provided with anti-slip protrusions 631, which are made of rubber material. The anti-slip protrusions 631 can increase the friction between the protective layer 63 and the energy storage spring, and prevent the locking plate 6 from falling off the energy storage spring when the pulling rod 5 is stretched.

[0037] Reference Figure 2 In one embodiment, a guide assembly 4 is provided between the fixed sleeve 1 and the pull rod 5. The guide assembly 4 guides the sliding of the pull rod 5 inside the fixed sleeve 1, and also separates the pull rod from the inner wall of the fixed sleeve 1, preventing direct contact between the pull rod 5 and the fixed sleeve 1 and avoiding friction between them. This design not only ensures smooth movement of the pull rod 5, but also reduces sliding wear of the pull rod 5.

[0038] Specifically, the guide assembly 4 includes a guide groove and a guide slider 41 that slides inside the guide groove. The guide groove is disposed on the inner sidewall of the fixed sleeve 1, and the guide slider 41 protrudes from the outer side of the pull rod 5. Both the guide groove and the guide slider 41 extend along the axial direction of the fixed sleeve 1. The guide slider 41 slides within the guide groove to limit the movement direction of the pull rod 5 and prevent the movement direction of the pull rod 5 from deviating. In this embodiment, two sets of guide assemblies 4 are provided between the pull rod 5 and the fixed sleeve 1. The two sets of guide assemblies 4 are distributed circumferentially around the fixed sleeve 1. Of course, in other embodiments, the number of sets of guide assemblies 4 can be set to one or three sets, etc.

[0039] In another embodiment, refer to Figure 1 and Figure 6 The distance between the two connecting arms 3 is adjustable. It is understandable that the length of the energy storage spring is different in different switch cabinets. Setting the distance between the two connecting arms 3 to be adjustable allows the distance between the two clamping plates 6 to be adjusted, so that the two clamping plates 6 can be clamped at both ends of energy storage springs of different lengths, thus increasing the applicability of the disassembly and assembly device.

[0040] Specifically, refer to Figure 6Both the fixed sleeve 1 and the pull rod 5 are provided with external threads (not shown in the figure). The external threads extend along the axial direction of the fixed sleeve 1 or the axial direction of the pull rod 5. The connecting arm 3 is provided with a connecting hole 32. The inner wall of the connecting hole 32 has an internal thread 33 that engages with the external threads. One connecting arm 3 is screwed onto the fixed sleeve 1 through the connecting hole 32, and the other connecting arm 3 is screwed onto the pull rod 5 through the connecting hole 32. The connecting arm 3 is threadedly connected to the fixed sleeve 1 and the pull rod 5. By rotating either connecting arm 3, the position of the connecting arm 3 on the fixed sleeve 1 or the pull rod 5 can be changed, thereby adjusting the distance between the two clamping plates 6, and no other locking components are required to lock the connecting arm 3.

[0041] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings, and are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0042] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0044] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the invention and should not be construed as limiting the scope of protection of the invention in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of the invention without inventive effort, and these embodiments will all fall within the scope of protection of the present invention.

Claims

1. A disassembly and assembly device for a 10kV switchgear energy storage spring, characterized in that... The device includes a pulling mechanism and two locking plates that can engage with opposite ends of an energy storage spring. The pulling mechanism includes a telescopic cylinder, a fixed sleeve, and a pulling rod. The telescopic cylinder has a cylinder body and a telescopic rod connected to the cylinder body. The fixed sleeve is sleeved on the outside of the telescopic rod, and one end of the fixed sleeve is fixedly connected to the cylinder body. One end of the pulling rod is connected to the end of the telescopic rod away from the cylinder body, and one end of the pulling rod extends out of the fixed sleeve. One locking plate is fixed to the fixed sleeve, and the other locking plate is fixed to the end of the pulling rod extending out of the fixed sleeve. The cylinder body can drive the pulling rod to extend or retract relative to the fixed sleeve through the telescopic rod to increase or decrease the distance between the two locking plates. A guide assembly is provided between the fixed sleeve and the pull rod; The guide assembly includes a guide groove and a guide slider that slides inside the guide groove. The guide groove is disposed on the inner side wall of the fixed sleeve, and the guide slider protrudes from the outer side of the pull rod. Both the guide groove and the guide slider extend along the axial direction of the fixed sleeve. Both the outer side of the fixed sleeve and the outer side of the pull rod are provided with connecting arms, and the two clamping plates are respectively detachably installed on the connecting arms through mounting parts; The mounting component is a screw, the connecting arm has a threaded hole through it, the clamping plate has a mounting hole through it corresponding to the threaded hole, and the screw passes through the mounting hole and is tightened in the threaded hole; The card plate has a snap-fit ​​portion and a mounting portion protruding from one side of the snap-fit ​​portion. The snap-fit ​​portion is recessed and has a snap-fit ​​groove for snapping with the energy storage spring. The mounting hole is provided on the mounting portion. The mounting part has a body and a boss. The boss is connected to the snap-fit ​​part through the body. The thickness of the boss is less than the thickness of the body. A limiting step is formed between the boss and the body. The limiting step is located on the side of the mounting part closer to the cylinder.

2. The disassembly and assembly device for the 10kV switchgear energy storage spring according to claim 1, characterized in that, The inner wall of the snap-fit ​​groove is provided with a protective layer.

3. The disassembly and assembly device for the 10kV switchgear energy storage spring according to any one of claims 1 to 2, characterized in that, The spacing between the two connecting arms is adjustable.

4. The disassembly and assembly device for the 10kV switchgear energy storage spring according to claim 3, characterized in that, Both the fixed sleeve and the pull rod are provided with external threads, which extend along the axial direction of the fixed sleeve or the axial direction of the pull rod. The connecting arm is provided with a connecting hole, and the inner sidewall of the connecting hole has an internal thread that screws into the external thread. One of the connecting arms is screwed onto the fixed sleeve through the connecting hole, and the other connecting arm is screwed onto the pull rod through the connecting hole.

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