CN211770005U - A hydraulic jack used for opening the cover and hanging core of a transformer - Google Patents

Abstract

The utility model discloses a hydraulic jack used for opening a cover and hanging core of a transformer, comprising: a support seat; a hydraulic cylinder, which is arranged on the support seat, the piston rod of the hydraulic cylinder faces upward, and the piston rod The outer end is movably connected with a vertical adjusting rod; the upper clamping component is arranged on the vertical adjusting rod and can move up and down under the driving of the vertical adjusting rod, and is used for clamping the upper cover of the transformer ; A lower clamping assembly, which is arranged on the support base and located below the upper clamping assembly, for clamping the lower cover of the transformer. When in use, the two above-mentioned hydraulic jacks need to be arranged on both sides of the transformer at the same time, and the two upper clamping components are lifted and lowered synchronously, thereby completing the opening and lifting of the core. The above-mentioned hydraulic jack used for opening the cover and suspending the core of the transformer is driven by a hydraulic cylinder, which has a simple structure and easier control of the operation process.

Description

A hydraulic jack used for opening the cover and hanging core of a transformer

technical field

The utility model relates to the technical field of transformer maintenance, in particular to a hydraulic jack used for opening a cover and suspending a core of a transformer.

Background technique

There are two commonly used methods of distribution transformer maintenance:

1. Use a forklift or crane to move the transformer from the bench to the ground, and then use a common lifting machine to open the cover and hang the core, and then repair and replace the accessories.

The hoisting procedure of the above method is relatively complicated, and the power outage time in the station area is relatively long.

2. Lift and replace the transformer directly on the bench.

At this time, the transformer and the fuse are close to the live side, and the safety hazard during the lifting process is relatively large.

Utility model content

The purpose of the utility model is to provide a hydraulic jack used for opening the cover and suspending the core of a transformer, which has a simple structure and is easy to disassemble and assemble, and has a low use cost.

In order to achieve the above-mentioned purpose, the utility model provides a hydraulic jack for opening the cover and hanging core of a transformer, including:

Support base;

a hydraulic cylinder, which is arranged on the support base, the piston rod of the hydraulic cylinder faces upward, and the outer end of the piston rod is movably connected with a vertical adjustment rod;

an upper clamping assembly, which is arranged on the vertical adjustment rod and can move up and down under the driving of the vertical adjustment rod, and is used for clamping the upper cover of the transformer;

A lower clamping assembly, which is arranged on the support base and located below the upper clamping assembly, is used for clamping the lower cover of the transformer.

Preferably, the upper clamping assembly includes a first lateral support rod that is fixedly connected to the vertical adjustment rod, an upper splint is fixedly connected below the first lateral support rod, and a first adjustment bolt is also provided on the first lateral support rod , and together with the upper splint, the upper cover of the transformer is fixed and clamped;

The lower clamping assembly includes a second lateral support rod that is fixedly connected to the support base, a lower splint is fixedly connected above it, and a second adjustment bolt is also provided on the second lateral support rod, which is connected with the Together with the lower splint, the lower cover of the transformer is fixed and clamped.

Preferably, both the bottom ends of the first adjusting bolt and the second adjusting bolt are provided with pressing portions.

Preferably, the outer end of the upper clamping plate is provided with a first inclined surface, the outer end of the lower clamping plate is provided with a second inclined surface corresponding to the first inclined surface, and the upper clamping plate and the lower clamping plate can form a wedge shape when they are in contact with each other. structure.

Preferably, the second lateral support rod and the support base are detachably connected.

Preferably, the first lateral support rod and the vertical adjustment rod are detachably connected.

The hydraulic jack provided by the utility model for opening the cover and hanging core of the transformer includes an upper clamping component and a lower clamping component, which are respectively used for clamping the upper cover and the lower cover of the transformer, and then the upper clamping component is set by setting The up and down movement of the vertical adjustment rod above the piston rod of the hydraulic cylinder lifts the upper cover of the transformer, so as to complete the opening and core lifting of the transformer and facilitate the maintenance of the transformer. When in use, the two above-mentioned hydraulic jacks need to be arranged on both sides of the transformer at the same time, and the two upper clamping assemblies are lifted and lowered synchronously, thereby completing the opening and lifting of the core.

The above-mentioned hydraulic jack used for opening the cover and suspending the core of the transformer is driven by a hydraulic cylinder, which has a simple structure and easier control of the operation process.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description It is only an embodiment of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained according to the provided drawings without creative efforts.

Fig. 1 is the three-dimensional structure diagram of hydraulic jack in a kind of specific embodiment provided by the utility model;

FIG. 2 is a front view of the hydraulic jack in FIG. 1 when it is in an initial state.

The reference numbers in Figures 1 to 2 are as follows:

1-support seat; 2-hydraulic cylinder; 21-piston rod; 22-vertical adjustment rod; 3-upper clamping assembly; 31-upper splint; 32-first lateral support rod; 33-first adjustment bolt; 34 - the first pressing part; 4 - the lower clamping assembly; 41 - the lower clamping plate; 42 - the second lateral support rod; 43 - the second adjusting bolt; 44 - the second pressing part.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The core of the utility model is to provide a hydraulic jack used for opening the cover and suspending the core of a transformer, which has a simple structure and is convenient for disassembly and assembly, and has a low use cost.

Please refer to FIGS. 1-2. FIG. 1 is a three-dimensional structural view of a hydraulic jack in a specific embodiment provided by the present invention; FIG. 2 is a front view of the hydraulic jack in FIG. 1 when it is in an initial state.

In the first specific embodiment, the hydraulic jack provided by the present invention for opening the core of a transformer includes a support base 1, which is used for setting a hydraulic cylinder 2 and other components.

The above-mentioned hydraulic jack also includes a hydraulic cylinder 2, which is a driving device of the jack, which is small in size, easy to carry and easy to use, and the operation process can be precisely controlled. It is usually vertically arranged on the support base 1, and the piston rod 21 of the hydraulic cylinder 2 faces upward, and its outer end is movably connected with a vertical adjustment rod 22, and the vertical adjustment rod 22 and the piston rod 21 can be optionally detachably connected. , such as threaded connection, the vertical adjustment rod 22 can move up and down within a certain vertical range under the driving of the piston rod 21 .

The above-mentioned hydraulic jack also includes an upper clamping assembly 3 and a lower clamping assembly 4, which are respectively used to clamp the upper cover and the lower cover of the transformer, and the upper clamping assembly 3 is arranged on the vertical adjustment rod 22, which can be used for clamping the upper cover and the lower cover of the transformer. The vertical adjusting rod 22 moves up and down under the driving of the vertical adjustment rod 22, thereby lifting and lowering the upper cover of the transformer.

The lower clamping assembly 4 is disposed on the support base 1 and below the upper clamping assembly 3, and the two are usually disposed opposite to each other.

When the above-mentioned hydraulic jacks are used to open the cover and suspend the core of the transformer, two of the hydraulic jacks need to be placed on both sides of the transformer at the same time, and the two upper clamping components synchronously drive the upper cover of the transformer to lift and lower.

Compared with the prior art, the above-mentioned hydraulic jack used for opening and suspending the core of a transformer has a simple structure and low use cost.

In a specific embodiment, the upper clamping assembly 3 includes a first lateral support rod 32 that is fixedly connected to the vertical adjustment rod 22, and the two are detachably connected, such as screwed or screwed, to facilitate disassembly and assembly. The upper splint 31 is fixedly connected below it, and a vertical rod can be used for connection between the two. The first lateral support rod 32 is also provided with a first adjustment bolt 33 , which can be installed through the installation holes provided on the first lateral support rod 32 . The first adjusting bolt 33 and the upper clamping plate 31 fix and clamp the upper cover of the transformer. According to the transformer upper cover of different thickness, the vertical height of the first adjusting bolt 33 can be adjusted to clamp and fix it.

Correspondingly, the lower clamping assembly 4 may include a second lateral support rod 42 that is fixedly connected with the support base 1, and the two are preferably detachably connected, such as welding nuts on the support base 1, and the second lateral support rod 42 may threadedly connected to the nut. A lower clamping plate 41 is fixedly connected above the second lateral support rod 42, and the two can also be connected by a vertical rod. At the same time, the second lateral support rod 42 is also provided with a second adjusting bolt 43 , which together with the lower clamping plate 41 fastens and clamps the lower cover of the transformer. Similarly, according to the transformer top cover with different thickness, the second adjusting bolt 43 can be clamped and fixed by adjusting the vertical height.

Of course, the upper clamping plate 31 and the lower clamping plate 41 are generally arranged horizontally.

In order to improve the clamping effect, pressing parts, such as the first pressing part 34 , can be provided at the bottom ends of the first adjusting bolt 33 and the second adjusting bolt 43 , that is, the adjacent ends of the upper clamping plate 31 and the lower clamping plate 41 . and the second pressing portion 44, which are slightly larger than the outer diameter of the threaded portion of the first adjusting bolt 33 and the second adjusting bolt 43, thereby increasing the contact area with the object to be clamped, which is convenient for pressing the upper cover or the upper cover of the transformer. lower lid.

In a specific embodiment, the outer end of the upper clamp plate 31 is provided with a first inclined surface, and the outer end of the lower clamp plate 41 is also provided with a second inclined surface corresponding to the first inclined surface. When the hydraulic jack is in the initial state, it can form a wedge-shaped structure, which is more conducive to the upper clamp plate 31 and the lower clamp plate 41 extending into the gap formed between the upper and lower covers of the transformer, and then operating the hydraulic cylinder 2 to the upper clamp plate 31. Lifting is conducive to smooth opening of the upper and lower covers.

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other.

The hydraulic jack provided by the utility model for opening the cover and hanging core of a transformer has been described in detail above. The principles and implementations of the present utility model are described herein by using specific examples, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principles of the present utility model, some improvements and modifications can also be made to the present utility model, and these improvements and modifications also fall into the protection of the claims of the present utility model. within the range.

Claims (6)

1. The utility model provides a hydraulic jack that is used for transformer uncap to hang core which characterized in that includes:

a supporting seat;

the hydraulic cylinder is arranged on the supporting seat, a piston rod of the hydraulic cylinder faces upwards, and the outer end of the piston rod is movably connected with a vertical adjusting rod;

the upper clamping assembly is arranged on the vertical adjusting rod, can be driven by the vertical adjusting rod to move up and down, and is used for clamping the upper cover of the transformer;

and the lower clamping assembly is arranged on the supporting seat and positioned below the upper clamping assembly and is used for clamping the lower cover of the transformer.

2. The hydraulic jack for transformer cap opening cores of claim 1,

the upper clamping assembly comprises a first transverse supporting rod fixedly connected with the vertical adjusting rod, an upper clamping plate is fixedly connected below the first transverse supporting rod, and a first adjusting bolt is further arranged on the first transverse supporting rod and fixedly clamps the upper cover of the transformer together with the upper clamping plate;

the lower clamping assembly comprises a second transverse supporting rod fixedly connected with the supporting seat, a lower clamping plate is fixedly connected above the second transverse supporting rod, and a second adjusting bolt is further arranged on the second transverse supporting rod and fixedly clamps the lower cover of the transformer together with the lower clamping plate.

3. The hydraulic jack for the transformer cover opening core as claimed in claim 2, wherein the bottom ends of the first and second adjusting bolts are provided with a pressing part.

4. The hydraulic jack for the transformer cover opening hanging core as claimed in claim 2 or 3, wherein the outer end of the upper clamping plate is provided with a first inclined surface, the outer end of the lower clamping plate is provided with a second inclined surface corresponding to the first inclined surface, and the upper clamping plate and the lower clamping plate can form a wedge-shaped structure when abutting against each other.

5. The hydraulic jack for transformer cover opening cores as claimed in claim 4, wherein the second transverse support bar is detachably connected with the support base.

6. The hydraulic jack for transformer cover opening cores of claim 4, wherein the first transverse support rod is detachably connected with the vertical adjusting rod.

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