Anti-skid electric roller bracket

Abstract

The utility model relates to nuclear power generation equipment, in particular to an anti-skid electric roller bracket which comprises a base, a motor is arranged on the lower portion of the base, two rollers are arranged on the top of the base, and the motor is connected with the rollers in a driving mode. And a latticed anti-skid structure is arranged on the roller. According to the anti-skidding electric roller bracket, the anti-skidding structure is additionally arranged on the roller, so that the problem that the roller and a rotor shaft are easy to slip when the rotor shaft of nuclear power generation equipment is lifted to rotate due to the smooth surfaces of the roller and the rotor shaft in the existing anti-skidding electric roller bracket can be effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of nuclear power generation equipment, and in particular to a roller bracket. Background Technology

[0002] When assembling and disassembling the rotor and stator of a large generator in a small factory, a horizontal assembly and disassembly method is generally adopted. Horizontal assembly and disassembly can be carried out in spaces with limited height, avoiding the complex operation of vertical lifting and lowering, which is suitable for environments with limited space.

[0003] When the rotor is installed and removed laterally from the stator, after the rotor is lifted and inserted into the stator, it is necessary to rotate the rotor using rollers to check whether the rotor and stator are compatible. However, because the surfaces of the rollers and the rotor shaft are smooth, slippage can easily occur between the rollers and the rotor shaft when the rotor shaft of the nuclear power generation equipment is rotated. Utility Model Content

[0004] In view of the problems existing in the prior art, the present invention is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution;

[0006] An anti-slip electric roller bracket includes a base, a motor at the bottom of the base, and two rollers at the top of the base, the motor driving and connecting the rollers;

[0007] The rollers are equipped with a grid-like anti-slip structure.

[0008] This invention adds an anti-slip structure to the roller, which can effectively solve the problem of slippage between the roller and the rotor shaft when the rotor shaft of the nuclear power generation equipment is rotated because the roller surface and the rotor shaft surface are both smooth.

[0009] The sidewall of the roller has strip-shaped protrusions, which are divided into two groups. The protrusions in the same group are parallel to each other, while the protrusions in different groups are perpendicular to each other. The two groups of protrusions are interlaced to form the anti-slip structure. Compared with the external anti-slip structure sleeved on the outside of the roller, the anti-slip structure of this utility model has higher robustness. It not only does not slip or shift, but it is also not easily deformed.

[0010] The width of the strip-shaped protrusions gradually decreases from the bottom to the top, and the bottoms of two adjacent strip-shaped protrusions in the same group abut together. This structure not only increases the supporting strength of the strip-shaped protrusions by utilizing their abutting bottoms, but also minimizes the distance between the two strip-shaped protrusions because their bottoms abut together, thereby maximizing the unit density of the anti-slip structure and achieving the best anti-slip effect.

[0011] The outer contour of the cross-section of the strip-shaped protrusion is an outward-convex arc shape at the top of the protrusion, and anti-slip stripes are provided on the protrusion. This avoids sharp corners from scratching the rotor shaft, while the anti-slip stripes further improve the anti-slip effect. The direction of the anti-slip stripes is perpendicular to the direction of the strip-shaped protrusion.

[0012] The roller has an annular groove, and the plane of the annular groove is perpendicular to the central axis of the roller. This annular groove is used for heat dissipation.

[0013] The bottom of the annular groove is lower than the bottom of the strip-shaped protrusion, thus ensuring effective heat dissipation.

[0014] The base is in the shape of an isosceles trapezoid, with the central axis of the roller located on the top surface of the base, and the central axis of the motor located on the plane of symmetry of the base. This makes the anti-slip electric roller bracket more stable.

[0015] The base has two counterweights at its lower part, symmetrically arranged on both sides of the motor. This further ensures the stability of the anti-slip electric roller bracket. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 A front view of the anti-slip electric roller bracket according to one embodiment of this utility model;

[0018] Figure 2 A side view of the anti-slip electric roller bracket according to one embodiment of this utility model;

[0019] Figure 3 This is a partial top view of the anti-slip electric roller bracket according to one embodiment of the present invention. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0023] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in less than one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0024] Example 1

[0025] Reference Figures 1-3 To make the structure clearer, Figure 3 The left-side roller is cut open. The anti-slip electric roller bracket includes a base 1, a motor 2 at the bottom of the base 1, and two rollers 3 at the top of the base 1. The motor 2 drives the rollers 3.

[0026] The roller 3 is provided with a grid-like anti-slip structure 31. This utility model adds an anti-slip structure 31 to the roller 3, which can effectively solve the problem of slippage between the roller 3 and the rotor shaft when supporting the rotor shaft of nuclear power generation equipment, because the surfaces of the roller 3 and the rotor shaft are smooth.

[0027] The base 1 is in the shape of an isosceles trapezoid, the central axis of the roller 3 is located on the top surface of the base 1, and the central axis of the motor 2 is located on the plane of symmetry of the base 1. This makes the electric roller 3 bracket more stable.

[0028] Two counterweights are provided at the lower part of the base 1, and the two counterweights are symmetrically arranged on both sides of the motor 2. This further ensures the stability of the electric roller 3 bracket.

[0029] When in use, first lift the rotor, then insert the rotor into the stator, and then support the rotor shaft with at least two electric rollers 3 brackets. Place the rotor shaft between the two rollers 3, start the motor 2, and the two rollers 3 will drive the rotor shaft to rotate. This makes it easy to observe whether the rotor and stator are properly assembled and improves the compatibility of the rotor and stator assembly.

[0030] Example 2

[0031] Reference Figures 1-3 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0032] The sidewall of the roller 3 has strip-shaped protrusions, which are divided into two groups. The protrusions in the same group are parallel to each other, while the protrusions in different groups are perpendicular to each other. The two groups of protrusions are interlaced to form an anti-slip structure 31. Compared with the external anti-slip structure 31 sleeved on the outside of the roller 3, the anti-slip structure 31 of this utility model has higher stability. It not only does not slip or shift, but it is also not easily deformed.

[0033] The width of the strip protrusions gradually decreases from bottom to top, and the bottoms of two adjacent strip protrusions in the same group abut together. This structure not only increases the support strength of the strip protrusions by utilizing their abutting bottoms, but also minimizes the distance between the two strip protrusions because their bottoms abut together, thereby maximizing the unit density of the anti-slip structure 31 and achieving the best anti-slip effect.

[0034] The outer contour of the strip-shaped protrusion's cross-section is an outward-convex arc shape at the top of the protrusion, and anti-slip stripes are provided on the protrusion. This prevents sharp corners from scratching the rotor shaft, while the anti-slip stripes further improve the anti-slip effect. The direction of the anti-slip stripes is perpendicular to the direction of the strip-shaped protrusion.

[0035] The roller 3 has an annular groove, and the plane of the annular groove is perpendicular to the central axis of the roller 3. This annular groove is used for heat dissipation.

[0036] The bottom of the annular groove is lower than the bottom of the strip-shaped protrusion, thus ensuring effective heat dissipation.

[0037] In use, the side wall of the roller 3 is provided with strip-shaped protrusions to form an anti-slip structure 31. Compared with the external anti-slip structure 31 sleeved on the outside of the roller 3, it has higher firmness. Not only will it not slip or shift, but it is also not easy to deform. The width of the strip protrusions gradually decreases from the bottom to the top, which increases the support strength of the strip protrusions. Moreover, because the bottoms are pressed together, the distance between the two strip protrusions is minimized, thereby maximizing the unit density of the anti-slip structure 31 and achieving the best anti-slip effect, so that the rotor shaft can rotate smoothly on the roller 3.

[0038] It should be noted that the above description illustrates the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An anti-slip electric roller bracket, comprising a base, a motor disposed at the lower part of the base, and two rollers disposed at the top of the base, the motor driving and connecting the rollers, characterized in that: The rollers are equipped with a grid-like anti-slip structure.

2. The anti-slip electric roller bracket according to claim 1, characterized in that: The sidewall of the roller is provided with strip-shaped protrusions. The strip protrusions are divided into two groups. The strip protrusions in the same group are parallel to each other, and the strip protrusions in different groups are perpendicular to each other. The two groups of strip protrusions are intertwined to form the anti-slip structure.

3. The anti-slip electric roller bracket according to claim 2, characterized in that: The width of the strip protrusions gradually decreases from the bottom to the top, and the bottoms of two adjacent strip protrusions in the same group abut together.

4. The anti-slip electric roller bracket according to claim 2, characterized in that: The outer contour of the cross-section of the strip-shaped protrusion is an outwardly convex arc shape at the top of the strip-shaped protrusion, and anti-slip stripes are provided on the protrusion.

5. The anti-slip electric roller bracket according to claim 4, characterized in that: The roller has an annular groove, and the plane of the annular groove is perpendicular to the central axis of the roller.

6. The anti-slip electric roller bracket according to claim 5, characterized in that: The height of the bottom of the annular groove is lower than the height of the bottom of the strip-shaped protrusion.

7. The anti-slip electric roller bracket according to claim 1, characterized in that: The base is in the shape of an isosceles trapezoid, the central axis of the roller is located on the top surface of the base, and the central axis of the motor is located on the plane of symmetry of the base.

8. The anti-slip electric roller bracket according to claim 1, characterized in that: The base has two counterweights at its lower part, which are symmetrically arranged on both sides of the motor.

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