CN219929408U - Stator core lifting structure - Google Patents

Abstract

The utility model discloses a stator core lifting structure, which comprises lifting rings, a lifting shaft and at least two groups of connecting components, wherein one end of each connecting component is rotatably arranged at the lower end of the lifting shaft, the mounting positions among the connecting components are mutually symmetrical, and the other end of each connecting component is provided with a resistance surface for contacting with the inner wall of a central hole of a stator core; when the connecting component rotates to be vertical to the lifting shaft, the diameter of an imaginary circle of the resistance surface is larger than the aperture of a central hole of the stator core; the utility model has simple integral structure, the structure is placed in the central hole of the stator core to be lifted, the complex fixed connection of the stator core is not needed, and the lifting is more convenient.

Description

Stator core lifting structure

Technical Field

The utility model relates to the technical field of stator cores, in particular to a stator core lifting structure.

Background

The square motor needs to lift the stator core during the rotation and processing. The Chinese patent with publication number CN212953895U discloses a lifting tool for stator core of steam turbine generator, which comprises a lifting plate and a plurality of lifting rods; the lifting plate is arranged above the iron core, has a shape similar to the section of the iron core, and is annular; one end of the lifting rod is provided with an elastic piece for clamping the top surface of the lifting plate, and the other end of the lifting rod is provided with a protruding part for clamping the bottom surface of the iron core; the lifting rod is divided into an inner lifting hanging rod and an outer lifting hanging rod, and the inner lifting hanging rod and the outer lifting hanging rod are respectively used for clamping the lifting plate and the iron core from the inner ring side and the outer ring side of the iron core, so that the iron core is lifted; the lifting tool is complex in structure, and a plurality of lifting rods and lifting plates are required to be fixed respectively during use, so that the lifting tool is inconvenient to use.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide a stator core lifting structure convenient to lift.

The technical scheme adopted by the utility model is as follows:

the stator core lifting structure comprises lifting rings, at least two groups of connecting assemblies, wherein one end of each connecting assembly is rotatably arranged at the lower end of each lifting shaft, the mounting positions among the connecting assemblies are symmetrical, and the other end of each connecting assembly is provided with a resistance surface for contacting with the inner wall of a central hole of the stator core; when the connecting assembly rotates to be perpendicular to the lifting shaft, the diameter of an imaginary circle of the resistance surface is larger than the aperture of the central hole of the stator core.

Further, the coupling assembling includes connecting rod and cushion, the resistance face sets up one side of cushion, the one end of connecting rod is rotated and is installed the lower extreme of hoisting shaft, the other end of connecting rod with the cushion deviates from one side rotation connection of resistance face.

Further, the connecting components are two groups, three groups or four groups.

Further, every group coupling assembling includes two connecting rods and a cushion, two the connecting rod parallel arrangement, the cushion rotates to be connected between two the connecting rod.

Further, the lifting shaft is a square shaft.

Further, the lower extreme lateral wall of lifting by crane the axle is equipped with the first connection journal stirrup that protrudes in its lateral wall, the one end of connecting rod is installed through first connecting axle rotation on the first connection journal stirrup.

Further, one side of the cushion block, which is away from the resistance surface, is provided with a convex second connection support lug, and the other end of the connecting rod is rotatably installed on the second connection support lug through a second connecting shaft.

Further, the resistance surface is an arc surface matched with the inner wall of the central hole of the stator core.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.

Fig. 1 is a schematic structural diagram of a lifting structure of a stator core according to an embodiment of the present utility model.

The stator core comprises a stator core body 1, a first connecting shaft 2, a connecting rod 3, a second connecting shaft 4, a cushion block 5, a lifting shaft 6, a lifting ring 7, a first connecting lug 8 and a second connecting lug 9.

Detailed Description

Here, it is to be noted that the functions, methods, and the like related to the present utility model are merely conventional adaptive applications of the prior art. The present utility model is therefore an improvement over the prior art in that the connection between hardware is essentially not a function, method itself, i.e. the present utility model, although it relates to a point of function, method, does not involve the improvement proposed for the function, method itself. The description of the function and the method of the utility model is for better explaining the utility model so as to better understand the utility model.

Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.

It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs.

Referring to fig. 1, the utility model relates to a lifting structure of a stator core 1, which comprises a lifting ring 7, a lifting shaft 6 and at least two groups of connecting components, wherein one end of each connecting component is rotatably arranged at the lower end of the lifting shaft 6, the mounting positions among the connecting components are mutually symmetrical, and the other end of each connecting component is provided with a resistance surface for contacting with the inner wall of a central hole of the stator core 1; when the connection assembly is rotated to be perpendicular to the lifting shaft 6, the imaginary circle diameter of the resistance surface is larger than the center hole diameter of the stator core 1.

According to the utility model, the lifting shaft 6 and the connecting components are arranged, the connecting components are at least two groups, one end of each connecting component is rotatably arranged at the lower end of the lifting shaft 6, and the other end of each connecting component is provided with a resistance surface for contacting with the inner wall of the central hole of the stator core 1; when the structure is used, the structure is placed in the central hole of the stator core 1, and when the connecting component rotates to be vertical to the lifting shaft 6, the imaginary circle diameter of the resistance surface is larger than the aperture of the central hole of the stator core 1, so after the structure is placed in the central hole of the stator core 1, an included angle is formed between the connecting component and the lifting shaft 6 all the time, the connecting component is adjusted, the included angle formed by the connecting component and the lifting shaft 6, which is upward, is an acute angle, the lifting ring 7 is connected with the lifting device, the structure is pulled upwards by the lifting device, and the connecting component rotates relative to the lifting shaft 6, so that the resistance surface is tightly attached to the inner wall of the central hole of the stator core 1, and the stator core 1 is lifted; the utility model has simple integral structure, the structure is placed in the central hole of the stator core 1 for lifting, the complex fixed connection of the stator core 1 is not needed, and the lifting is more convenient.

The hoisting shaft 6 may be a circular shaft or a square shaft, and the present utility model is not limited thereto.

The connecting components are two groups, three groups or four groups, one end of each connecting component is rotationally connected with the lower end of the lifting shaft 6, and the connecting components can rotate by taking the connecting position as the center.

Specifically, the connecting assembly comprises a connecting rod 3 and a cushion block 5, and the resistance surface is arranged on one side of the cushion block 5. The connecting rod 3 is the straight-bar that has certain width, and the one end rotation of connecting rod 3 is installed in the lower extreme of lifting by crane axle 6, and the other end of connecting rod 3 is connected with the one side rotation that the cushion 5 deviates from the resistance face for connecting rod 3 and cushion 5 all can free rotation.

Each group of connecting components comprises two connecting rods 3 and a cushion block 5, the two connecting rods 3 are arranged in parallel, and the cushion block 5 is rotationally connected between the two connecting rods 3.

Specifically, the side wall of the lower end of the lifting shaft 6 is provided with first connecting lugs 8 protruding out of the side wall of the lifting shaft, and the first connecting lugs 8 are arranged according to the number of groups of connecting components; two connecting rods 3 are located the both sides of first connection journal stirrup 8 respectively, and the one end of two connecting rods 3 is installed on first connection journal stirrup 8 through first connecting axle 2 rotation, presss from both sides first connection journal stirrup 8 between two connecting rods 3, realizes the rotation connection between connecting rod 3 and the lift by crane axle 6.

One side of the cushion block 5 deviating from the resistance surface is provided with a convex second connection lug 9, two connecting rods 3 are respectively positioned at two sides of the second connection lug 9, the other ends of the two connecting rods 3 are rotatably arranged on the second connection lug 9 through a second connecting shaft 4, the second connection lug 9 is clamped between the two connecting rods 3, and the rotary connection between the connecting rods 3 and the cushion block 5 is realized.

The cushion block 5 is of a block structure, and the resistance surface is arranged on one side of the cushion block 5 and is used for being matched with the inner wall of the central hole of the stator core 1, and when the stator core is lifted, the resistance surface is always attached to the inner wall of the central hole of the stator core 1. In this embodiment, the resistance surface is an arc surface adapted to the inner wall of the central hole of the stator core 1.

In the present utility model, the imaginary circle is a circle perpendicular to the axial direction of the hoisting shaft 6 formed by connecting the resistance surfaces of the connection members when the connection members are rotated to be perpendicular to the hoisting shaft 6. When the connecting components are in two groups, the imaginary circle is a circle with the straight line connecting the two resistance surfaces as the diameter, and the diameter of the imaginary circle is the distance between the two resistance surfaces; when the connecting components are in three groups, any symmetrical points on the three resistance surfaces form a regular triangle, and the imaginary circle is the circumscribed circle of the regular triangle; when the connecting components are four groups, any symmetrical points on the four resistance surfaces form a square, and the imaginary circle is the circumcircle of the square.

In the present utility model, unless explicitly specified and limited otherwise, the terms "connected," "fixed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; may be an electrical connection; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, numerous specific details are set forth. However, it is understood that embodiments of the utility model may be practiced without these specific details. In some instances, well-known methods, systems, and techniques have not been shown in detail in order not to obscure an understanding of this description.

In the description of the present specification, a description of the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., means that a particular feature, system, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, systems, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.

Claims (8)

1. The stator core lifting structure comprises lifting rings and is characterized by further comprising a lifting shaft and at least two groups of connecting assemblies, wherein one end of each connecting assembly is rotatably arranged at the lower end of the lifting shaft, the mounting positions among the connecting assemblies are mutually symmetrical, and the other end of each connecting assembly is provided with a resistance surface for contacting with the inner wall of a central hole of the stator core; when the connecting assembly rotates to be perpendicular to the lifting shaft, the diameter of an imaginary circle of the resistance surface is larger than the aperture of the central hole of the stator core.

2. The stator core lifting structure of claim 1, wherein the connection assembly comprises a connection rod and a cushion block, the resistance surface is arranged on one side of the cushion block, one end of the connection rod is rotatably mounted at the lower end of the lifting shaft, and the other end of the connection rod is rotatably connected with one side of the cushion block, which is away from the resistance surface.

3. The stator core lifting structure according to claim 1 or 2, wherein the connection assembly is two, three or four groups.

4. The stator core lifting structure of claim 2, wherein each set of connection assemblies includes two connection rods and a spacer block, the two connection rods being arranged in parallel, the spacer block being rotatably connected between the two connection rods.

5. The stator core lifting structure of claim 4, wherein the lifting shaft is a square shaft.

6. The lifting structure of stator core according to claim 4, wherein a lower end side wall of the lifting shaft is provided with a first connection lug protruding from a side wall thereof, and one end of the connection rod is rotatably mounted on the first connection lug through the first connection shaft.

7. The lifting structure of stator core according to claim 4, wherein a protruding second connection lug is arranged on one side of the cushion block away from the resistance surface, and the other end of the connecting rod is rotatably mounted on the second connection lug through a second connecting shaft.

8. The stator core lifting structure of claim 1, wherein the resistance surface is an arcuate surface adapted to an inner wall of a central bore of the stator core.