Transformer hanging cover auxiliary mechanism capable of avoiding shaking

Abstract

The utility model discloses a transformer hanging cover auxiliary mechanism capable of avoiding shaking, and relates to the technical field of transformer overhaul, in particular to the transformer hanging cover auxiliary mechanism capable of avoiding shaking, which comprises a transformer and a hanging cover arranged on the transformer. An auxiliary mechanism is arranged on the transformer and used for preventing shaking and buffering when the transformer and a hanging cover are separated, the auxiliary mechanism comprises an installation assembly, the installation assembly comprises installation frames installed at the two ends of the transformer, base bodies are fixed to the two ends of the interior of each installation frame, and an installation plate is arranged between the upper portions of the base bodies at the two ends; upper mounting heads are fixed to the inner sides of the two ends of the mounting plate, knob bolts penetrate through the bottoms of the two ends of the mounting frame through threads, and lower mounting heads are rotationally mounted at the upper ends of the knob bolts; the problems that the internal structure of the transformer is damaged and internal elements of the transformer are affected due to the fact that the transformer hanging cover swings back and forth while moving upwards due to lack of a guide mechanism at the moment of separation are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer overhaul, in particular to a transformer hanging cover auxiliary mechanism for preventing shaking. Background Art

[0002] For bell-type power transformers, which include an upper oil tank and a lower oil tank, the transformer body is fixed on the lower oil tank, and the upper oil tank is buckled on the lower oil tank. Nitrile rubber pads are used to seal the upper and lower oil tanks. During inspection, the upper oil tank cover needs to be lifted by a crane for inspection.

[0003] Inspection items include inspection and repair of windings, tap changers, connectors, fasteners, heat sinks, seal replacement, and oil treatment. When repairing the internal structure of the transformer, the transformer cover needs to be lifted first. When lifting the transformer cover, it is usually lifted by a crane. Since the transformer cover is fixed to the transformer base for a long time, adhesion will be generated between the transformer cover and the transformer base. When the transformer cover is separated from the transformer base, the adhesion disappears instantly, and the transformer cover moves up violently, which can easily cause the transformer cover to vibrate and move, thus affecting the internal structure of the transformer.

[0004] Upon investigation, the publication (announcement) number: CN216698044U discloses a shock-absorbing device for overhauling a transformer cover. This technology discloses that "when a crane lifts the upper oil tank cover, the crane applies a force greater than the weight of the transformer body to the upper oil tank cover. At this time, the adhesion force between the rubber pad and the upper oil tank / lower oil tank is released. At the moment of release of the adhesion force, the upper oil tank violently bounces upward along the shock-absorbing rod. At the moment of rebound, the first tank edge squeezes the first elastic member. At this time, the impact force of the first elastic member on the rapid rebound of the upper oil tank is immediately reduced." The technical solution has the technical effect of "avoiding the danger of overturning due to the rapid rebound of the upper oil tank causing the center of gravity of the crane to be unstable";

[0005] Although the above scheme can reduce the impact force generated by the upper and lower oil tanks at the moment of separation through the shock-absorbing device, the transformer cover lacks a guide mechanism at the moment of separation, causing the cover to swing back and forth while moving upward, causing damage to the internal structure of the transformer, thereby affecting the internal components of the transformer. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a transformer hanging cover auxiliary mechanism for preventing shaking, which has the characteristics of guiding, preventing shaking and shock absorption through the auxiliary mechanism at the moment when the hanging cover and the transformer are separated.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a transformer hanging cover auxiliary mechanism for preventing shaking, comprising a transformer, a hanging cover installed on the transformer, an auxiliary mechanism provided on the transformer and used to prevent shaking and provide buffering when the transformer and the hanging cover are separated, the auxiliary mechanism comprising:

[0008] The mounting assembly includes a mounting bracket installed at both ends of the transformer, with a seat body fixed at both ends of the mounting bracket, a mounting plate provided above the upper portion of the seat body at both ends, an upper mounting head fixed on the inner side of both ends of the mounting plate, and a knob bolt threadedly installed at the bottom of both ends of the mounting bracket, and a lower mounting head rotatably installed at the upper end of the knob bolt;

[0009] The first shock-absorbing component is arranged inside the base body and is used for primary buffering when the transformer and the hanging cover are separated;

[0010] The second shock-absorbing component is arranged inside the base body and is used for secondary buffering when the transformer and the hanging cover are separated.

[0011] Preferably, the first shock absorbing assembly includes a first cavity opened at the inner end of the seat body, a first guide rod is slidably installed in the first cavity, a first damper is installed on the outer wall of the inner end of the first guide rod, a first spring is installed inside the first cavity, a lower connecting piece is fixed to the outer end of the first guide rod, a connecting rod is pivotally connected to the lower connecting piece, an upper connecting piece is fixed to the upper end of the connecting rod, and the upper end of the upper connecting piece is fixed to the bottom of the mounting plate.

[0012] Preferably, the second shock absorbing assembly includes a second cavity opened at the inner outer end of the base body, a second guide rod is slidably installed in the second cavity, and the upper end of the second guide rod is connected to the bottom of the mounting plate, a second damper is installed on the outer wall of the lower end of the second guide rod, and a second spring is installed inside the second cavity.

[0013] Preferably, the mounting assembly further comprises side frames fixed to both ends of the mounting frame, and the lower mounting head is slidably mounted inside the side frames.

[0014] Preferably, mounting holes are provided inside the upper mounting head and inside the lower mounting head.

[0015] Preferably, two hanging rings are fixed on both ends of the hanging cover.

[0016] Beneficial effects

[0017] The utility model provides a transformer cover auxiliary mechanism to prevent shaking. Compared with the existing technology, it has the following advantages:

[0018] (1) When the hanging cover needs to be lifted from the transformer, the bolts fixing the transformer and the hanging cover are removed, and then the upper mounting head on the mounting plate is fixed to the hanging cover. Then, the knob bolt is rotated to drive the lower mounting head to fit with the end of the transformer, and the lower mounting head is fixed to the transformer, so that when the mounting assembly is fixed between the transformer and the hanging cover, it will not cause compression and stretching to the first shock-absorbing assembly and the second shock-absorbing assembly, so that when the transformer and the hanging cover are separated, the first shock-absorbing assembly and the second shock-absorbing assembly have sufficient buffer distance.

[0019] (2) When the hanging cover is lifted and separated from the transformer, the adhesion force disappears and the hanging cover moves up violently and drives the mounting plate to move through the upper mounting head. The mounting plate drives the first guide rod through the connecting rod. The first guide rod is buffered by the first spring and damped by the first damper, thereby playing a primary buffering role for the hanging cover; at the same time, the second guide rod cooperates with the second spring to buffer and damps through the second damper, thereby playing a secondary buffering role for the hanging cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 It is a structural diagram of the auxiliary mechanism in the utility model;

[0022] Figure 3 This is a structural diagram of the bottom of the auxiliary mechanism in the present utility model;

[0023] Figure 4 It is a schematic diagram of the internal structure of the auxiliary mechanism in the utility model.

[0024] In the figure: 1. transformer; 2. auxiliary mechanism; 21. mounting assembly; 211. mounting frame; 212. base; 213. mounting plate; 214. upper mounting head; 215. knob bolt; 216. lower mounting head; 217. side frame; 22. first shock-absorbing assembly; 221. first cavity; 222. first guide rod; 223. first damper; 224. first spring; 225. lower connecting piece; 226. connecting rod; 227. upper connecting piece; 23. second shock-absorbing assembly; 231. second cavity; 232. second guide rod; 233. second damper; 234. second spring; 3. hanging cover; 4. hanging ring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-4 The utility model provides a technical solution for a transformer cover auxiliary mechanism to prevent shaking: a transformer cover auxiliary mechanism to prevent shaking, comprising a transformer 1, a hanging cover 3 installed on the transformer 1, an auxiliary mechanism 2 provided on the transformer 1 and used to prevent shaking and buffer when the transformer 1 and the hanging cover 3 are separated, the auxiliary mechanism 2 comprising:

[0027] The mounting assembly 21 includes a mounting frame 211 mounted at both ends of the transformer 1. A base 212 is fixed at both ends of the mounting frame 211. A mounting plate 213 is provided above the base 212 at both ends. An upper mounting head 214 is fixed to the inner side of each end of the mounting plate 213. A knob bolt 215 is threadedly installed at the bottom of each end of the mounting frame 211. A lower mounting head 216 is rotatably installed at the upper end of the knob bolt 215.

[0028] The first shock absorbing assembly 22 is disposed inside the base 212 and is used for primary buffering when the transformer 1 and the hanging cover 3 are separated;

[0029] The second shock absorbing assembly 23 is disposed inside the base 212 and is used for secondary buffering when the transformer 1 and the hanging cover 3 are separated.

[0030] In this embodiment, when it is necessary to lift the hanging cover 3 from the transformer 1, the bolts fixing the transformer 1 and the hanging cover 3 are removed, and then the upper mounting head 214 on the mounting plate 213 is fixed to the hanging cover 3, and then the knob bolt 215 is rotated to drive the lower mounting head 216 to fit with the end of the transformer 1, and the lower mounting head 216 is fixed to the transformer 1, so that when the mounting assembly 21 is fixed between the transformer 1 and the hanging cover 3, it will not cause compression and stretching to the first shock-absorbing assembly 22 and the second shock-absorbing assembly 23, so that when the transformer 1 and the hanging cover 3 are separated, the first shock-absorbing assembly 22 and the second shock-absorbing assembly 23 have sufficient buffer distance.

[0031] Specifically, the first shock absorbing assembly 22 includes a first cavity 221 opened at the inner end of the base body 212, a first guide rod 222 is slidably installed in the first cavity 221, a first damper 223 is installed on the inner end outer wall of the first guide rod 222, a first spring 224 is installed inside the first cavity 221, a lower connecting member 225 is fixed to the outer end of the first guide rod 222, a connecting rod 226 is pivotally connected to the lower connecting member 225, an upper connecting member 227 is fixed to the upper end of the connecting rod 226, and the upper end of the upper connecting member 227 is fixed to the bottom of the mounting plate 213.

[0032] In this embodiment, at the moment when the hanging cover 3 is lifted and separated from the transformer 1, the adhesion force disappears, the hanging cover 3 moves upward violently and drives the mounting plate 213 to move through the upper mounting head 214. The mounting plate 213 drives the first guide rod 222 through the connecting rod 226. The first guide rod 222 is buffered by the first spring 224 and damped by the first damper 223, thereby playing a primary buffering role for the hanging cover 3.

[0033] Specifically, the second shock absorbing assembly 23 includes a second cavity 231 opened at the inner outer end of the base body 212, a second guide rod 232 is slidably installed in the second cavity 231, and the upper end of the second guide rod 232 is connected to the bottom of the mounting plate 213, a second damper 233 is installed on the outer wall of the lower end of the second guide rod 232, and a second spring 234 is installed inside the second cavity 231.

[0034] In this embodiment, when the hanging cover 3 moves upward violently and drives the mounting plate 213 to move through the upper mounting head 214, the second guide rod 232 cooperates with the second spring 234 to buffer and the second damper 233 to dampen, thereby playing a secondary buffering role for the hanging cover 3.

[0035] Specifically, the mounting assembly 21 further includes side frames 217 fixed to both ends of the mounting frame 211 , and the lower mounting head 216 is slidably mounted inside the side frames 217 .

[0036] In this embodiment, the internal lower mounting head 216 is limited by the side frame 217, and the side frame 217 is set on the common vertical surface of the mounting frame 211, while improving the strength between the joint surfaces of the mounting frame 211.

[0037] Specifically, mounting holes are formed inside the upper mounting head 214 and inside the lower mounting head 216 .

[0038] In this embodiment, the upper mounting head 214 is fixed to the hanging cover 3 by bolts, and the lower mounting head 216 is fixed to the transformer 1 by bolts.

[0039] Specifically, two hanging rings 4 are fixed on both ends of the hanging cover 3 .

[0040] In this embodiment, the cover 3 can be hung on the lifting ring 4 by a lifting rope, and the lifting rope is hooked by a lifting hook of a crane, so that the cover 3 is lifted from the transformer 1.

[0041] The working principle and usage process of the utility model are as follows: First, when the hanging cover 3 needs to be lifted from the transformer 1, the bolts fixing the transformer 1 and the hanging cover 3 are removed, and then the upper mounting head 214 on the mounting plate 213 is fixed to the hanging cover 3, and then the knob bolt 215 is rotated to drive the lower mounting head 216 to fit the end of the transformer 1, and the lower mounting head 216 is fixed to the transformer 1; then, the hanging rope is hung on the lifting ring 4, and the hanging rope is hooked by the hook of the crane, so that the hanging cover 3 is slightly lifted from the transformer 1;

[0042] When the hanging cover 3 is lifted and separated from the transformer 1, the adhesion force disappears, and the hanging cover 3 moves upward violently and drives the mounting plate 213 to move via the upper mounting head 214. The mounting plate 213 drives the first guide rod 222 via the connecting rod 226. The first guide rod 222 is buffered by the first spring 224 and damped by the first damper 223, thereby providing a primary buffer for the hanging cover 3. At the same time, the second guide rod 232 cooperates with the second spring 234 to provide a buffer, and the second damper 233 to provide a secondary buffer for the hanging cover 3.

[0043] Finally, when the hanging cover 3 is separated from the transformer 1 and the movement of the hanging cover 3 stops, the auxiliary mechanism 2 can be removed from between the hanging cover 3 and the transformer 1, and the hanging rope can be hooked by the crane hook to completely remove the hanging cover 3 from the transformer 1.

[0044] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "includes," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transformer cover auxiliary mechanism for preventing shaking, comprising a transformer (1), a cover (3) mounted on the transformer (1), and characterized in that: The transformer (1) is provided with an auxiliary mechanism (2) for preventing shaking and providing buffering when the transformer (1) and the hanging cover (3) are separated. The auxiliary mechanism (2) comprises: The mounting assembly (21) comprises a mounting frame (211) mounted at both ends of the transformer (1), a seat body (212) being fixed at both ends of the mounting frame (211), a mounting plate (213) being provided above the upper ends of the seat bodies (212), an upper mounting head (214) being fixed on the inner sides of both ends of the mounting plate (213), a knob bolt (215) being threadedly mounted through the bottom of both ends of the mounting frame (211), and a lower mounting head (216) being rotatably mounted on the upper end of the knob bolt (215); A first shock-absorbing assembly (22) is arranged inside the base (212) and is used for primary buffering when the transformer (1) and the hanging cover (3) are separated; The second shock absorbing assembly (23) is arranged inside the base body (212) and is used for secondary buffering when the transformer (1) and the hanging cover (3) are separated.

2. The transformer cover auxiliary mechanism for preventing shaking according to claim 1, characterized in that: The first shock absorbing assembly (22) includes a first cavity (221) opened at the inner end of the seat body (212), a first guide rod (222) is slidably installed in the first cavity (221), a first damper (223) is installed on the outer wall of the inner end of the first guide rod (222), a first spring (224) is installed inside the first cavity (221), a lower connecting member (225) is fixed to the outer end of the first guide rod (222), a connecting rod (226) is pivotally connected to the lower connecting member (225), an upper connecting member (227) is fixed to the upper end of the connecting rod (226), and the upper end of the upper connecting member (227) is fixed to the bottom of the mounting plate (213).

3. The transformer cover auxiliary mechanism for preventing shaking according to claim 2, characterized in that: The second shock absorbing assembly (23) comprises a second cavity (231) opened at the inner outer end of the seat body (212); a second guide rod (232) is slidably installed in the second cavity (231); the upper end of the second guide rod (232) is connected to the bottom of the mounting plate (213); a second damper (233) is installed on the outer wall of the lower end of the second guide rod (232); and a second spring (234) is installed inside the second cavity (231).

4. The transformer cover auxiliary mechanism for preventing shaking according to claim 1, characterized in that: The mounting assembly (21) further includes side frames (217) fixed to both ends of the mounting frame (211), and the lower mounting head (216) is slidably mounted inside the side frames (217).

5. The transformer cover auxiliary mechanism for preventing shaking according to claim 4, characterized in that: The interior of the upper mounting head (214) and the interior of the lower mounting head (216) are both provided with mounting holes.

6. The transformer cover auxiliary mechanism for preventing shaking according to claim 1, characterized in that: Two hanging rings (4) are fixed at both ends of the hanging cover (3).

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