Strong-lifting electric roller bracket

Abstract

The invention relates to nuclear power generation equipment, in particular to a strong-lifting 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 in driving connection with the rollers. The device further comprises a transmission belt which is tensioned on the two rollers; an annular groove with an outward opening is formed in the outer side wall of the roller, an annular protrusion protruding inwards is arranged on the inner side wall of the transmission belt, the annular protrusion is connected with the annular groove in a clamped mode, and the plane where the annular groove is located is perpendicular to the central axis of the roller. The transmission belt is additionally arranged on the roller of the strong-lifting electric roller bracket, the friction condition between the roller and the rotor can be effectively improved by utilizing the transmission belt, and slipping between the roller and the rotor is reduced. The annular grooves are additionally arranged outside the rollers, the annular protrusions are additionally arranged in the transmission belt, the rolling direction of the transmission belt can be effectively limited through the annular grooves and the annular protrusions, and displacement and deviation of the transmission belt in the rolling process are avoided.

Description

Technical Field

[0001] The invention relates to the field of nuclear power generation equipment, and in particular to a roller bracket. Background Art

[0002] When the rotor and stator of a large generator are installed and disassembled in a factory with a small space, the horizontal installation and disassembly method is generally adopted. The horizontal installation and disassembly can be carried out in a space with limited height, avoiding the complex operation of vertical lifting and is suitable for environments with limited space.

[0003] When the rotor is horizontally assembled and disassembled with the stator, after the rotor is lifted and inserted into the stator, it is necessary to rotate the rotor with rollers to detect whether the rotor and stator are compatible. However, since the roller surface and the rotor surface are smooth, the roller and the rotor are prone to slip when the rotor of the nuclear power generation equipment is rotated. Summary of the invention

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

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A strong lifting electric roller bracket comprises a base, a motor is arranged at the bottom of the base, two rollers are arranged at the top of the base, and the motor drives and connects the rollers;

[0007] It also includes a transmission belt, which is tightened on two rollers; an annular groove with an outward opening is provided on the outer wall of the roller, and an annular protrusion protruding inwardly is provided on the inner wall of the transmission belt, the annular protrusion is clamped with the annular groove, and the plane where the annular groove is located is perpendicular to the central axis of the roller.

[0008] The present invention adds a transmission belt to the roller of the strong lifting electric roller bracket, and the transmission belt can effectively improve the friction between the roller and the rotor, and reduce the slip between the two. The present invention adds an annular groove outside the roller and an annular protrusion inside the transmission belt. The annular groove and the annular protrusion can effectively limit the rolling direction of the transmission belt, and prevent the conveyor belt from shifting and deviating during the rolling process.

[0009] Preferably, the cross-section of the annular groove is an isosceles trapezoidal shape, and an anti-slip protrusion is provided at the bottom of the annular groove; the cross-section of the annular protrusion is an isosceles trapezoidal shape, and an anti-slip groove is provided at the top of the annular protrusion, the anti-slip protrusion is clamped into the anti-slip groove, and the extension direction of the anti-slip protrusion is parallel to the central axis of the roller.

[0010] Preferably, there are at least four annular grooves on the same roller, and a gap is provided between two adjacent annular grooves; there are at least two transmission belts tightened on the roller, and any one of the transmission belts has at least two annular protrusions.

[0011] Preferably, the transmission belt is embedded with two metal meshes, namely a first metal mesh and a second metal mesh, the first metal mesh is located inside the conveyor belt, and the outer side wall of the second metal mesh is flush with the outer side wall of the conveyor belt.

[0012] Preferably, the mesh openings of the first metal mesh are larger than the mesh openings of the second metal mesh, so as to utilize the inconsistency of the mesh openings to make the mesh openings of the first metal mesh and the second metal mesh more interlaced, so as to ensure the strength of the conveyor belt.

[0013] Preferably, the first metal mesh and the second metal mesh are connected by springs arranged at equal intervals. During production, the springs play a role of positioning and supporting, and can limit the distance between the first metal mesh and the second metal mesh. During use, the springs play a role of buffering and supporting, and can effectively increase the strength of the transmission belt.

[0014] Preferably, 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 symmetry axis plane of the base.

[0015] Preferably, the motor shaft of the motor extends out of the base, and a first gear is sleeved on the motor shaft;

[0016] The roller shaft of the roller extends out of the base, and a second gear is sleeved on the roller shaft;

[0017] The first gear meshes with the second gear. The motor of the present invention drives the roller through the gear, which can effectively reduce the transmission components and reduce the maintenance cost of the equipment. The gear of the present invention is located outside the base, which is convenient for maintenance and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0019] Figure 1 A schematic diagram of the overall structure of a strong lifting electric roller bracket according to an embodiment of the present invention;

[0020] Figure 2A schematic side view of the structure of a strong lifting electric roller bracket according to an embodiment of the present invention;

[0021] Figure 3 A schematic diagram of the roller and conveyor belt structure of a strong lifting electric roller bracket according to an embodiment of the present invention;

[0022] Figure 4 A schematic diagram of the internal structure of a roller of a strong lifting electric roller bracket according to an embodiment of the present invention. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more understandable, the specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0026] Furthermore, 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 term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0027] Example 1

[0028] Reference Figure 1-Figure 4 The strong lifting electric roller bracket comprises a base 1, a motor 4 is arranged at the lower part of the base 1, two rollers 2 are arranged at the top of the base 1, and the motor 4 drives the connecting rollers 2.

[0029] It also includes a transmission belt 3, which is tightened on the two rollers 2; an annular groove 21 with an opening facing outward is provided on the outer wall of the roller 2, and an annular protrusion 31 protruding inwardly is provided on the inner wall of the transmission belt 3. The annular protrusion 31 is engaged with the annular groove 21, and the plane where the annular groove 21 is located is perpendicular to the central axis of the roller 2. The present invention adds a transmission belt 3 to the roller 2 of the bracket for strongly lifting the electric roller 2. The use of the transmission belt 3 can effectively improve the friction between the roller 2 and the rotor and reduce the slippage between the two. The present invention adds an annular groove 21 outside the roller 2 and an annular protrusion 31 inside the transmission belt 3. The annular groove 21 and the annular protrusion 31 can effectively limit the rolling direction of the transmission belt 3 and prevent the conveyor belt from shifting and deviating during rolling.

[0030] The cross-section of the annular groove 21 is an isosceles trapezoid, and an anti-slip protrusion is provided at the bottom of the annular groove 21; the cross-section of the annular protrusion 31 is an isosceles trapezoid, and an anti-slip groove is provided at the top of the annular protrusion 31. The anti-slip protrusion is engaged with the anti-slip groove, and the extension direction of the anti-slip protrusion is parallel to the central axis of the roller 2.

[0031] There are at least four annular grooves 21 on the same roller 2 , and a gap is provided between two adjacent annular grooves 21 ; there are at least two transmission belts 3 tightened on the roller 2 , and any one of the transmission belts 3 has at least two annular protrusions 31 .

[0032] The transmission belt 3 is embedded with two metal meshes, namely a first metal mesh 32 and a second metal mesh 33. The first metal mesh 32 is located inside the transmission belt, and the outer side wall of the second metal mesh 33 is flush with the outer side wall of the transmission belt.

[0033] The mesh of the first metal mesh 32 is larger than the mesh of the second metal mesh 33. Thus, by utilizing the inconsistency of the meshes, the meshes of the first metal mesh 32 and the second metal mesh 33 are more staggered to ensure the strength of the conveyor belt.

[0034] The first metal mesh 32 and the second metal mesh 33 are connected by springs 34 arranged at equal intervals. During production, the springs 34 play a role of positioning and supporting, and can limit the distance between the first metal mesh 32 and the second metal mesh 33. During use, the springs 34 play a role of buffering and supporting, and can effectively increase the strength of the transmission belt 3.

[0035] When in use, a transmission belt 3 is added to the roller 2, and the transmission belt 3 is stuck in the annular groove 21 of the roller 2 through two annular protrusions 31. The annular groove 21 and the annular protrusion 31 can effectively limit the rolling direction of the transmission belt 3 to prevent the conveyor belt from shifting and deviating during rolling. Two metal meshes are embedded in the transmission belt 3. The first metal mesh 32 and the second metal mesh 33 are connected by springs 34 arranged at equal intervals. The springs 34 play a role of buffering and supporting, which can effectively increase the strength of the transmission belt 3. The outer wall of the second metal mesh 33 is flush with the outer wall of the conveyor belt, which can improve the friction between the roller 2 and the rotor and reduce slippage between the two.

[0036] Example 2

[0037] Reference Figure 1 and Figure 2 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0038] The base 1 is in the shape of an isosceles trapezoid. The central axis of the roller 2 is located on the top surface of the base 1 , and the central axis of the motor 4 is located on the symmetry axis plane of the base 1 .

[0039] The motor 4 shaft of the motor 4 extends out of the base 1, and a first gear 41 is sleeved on the motor 4 shaft; the roller shaft 42 of the roller 2 extends out of the base 1, and a second gear 22 is sleeved on the roller shaft 42; the first gear 41 engages with the second gear 22. The motor 4 of the present invention drives the roller 2 through the gear, which can effectively reduce the transmission parts and reduce the maintenance cost of the equipment. The gear of the present invention is located outside the base 1, which is convenient for maintenance and replacement.

[0040] When in use, the base 1 is in the shape of an isosceles trapezoid to improve the stability of the base 1, and the motor 4 drives the first gear 41 to rotate, and the first gear 41 is engaged with the second gear 22 on the roller shaft 42, so that the first gear 41 drives the two rollers 2 to rotate together, and the conveyor belt tightened on the two rollers 2 also starts to rotate with the rolling rollers 2, and the rotor is placed between the two rollers 2, and the rolling rollers 2 and the moving conveyor belt drive the rotor to rotate, so that the rotor can rotate smoothly to check whether it is compatible with the stator.

[0041] It should be noted that the above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A strong lifting electric roller bracket, comprising a base, a motor is provided at the bottom of the base, two rollers are provided at the top of the base, and the motor drives and connects the rollers, characterized in that: Also includes a transmission belt, the transmission belt is tightened on two rollers; The outer wall of the roller is provided with an annular groove opening outward, and the inner wall of the transmission belt is provided with an annular protrusion protruding inwardly. The annular protrusion is engaged with the annular groove, and the plane where the annular groove is located is perpendicular to the central axis of the roller.

2. The strong lifting electric roller bracket according to claim 1 is characterized in that: The cross section of the annular groove is in the shape of an isosceles trapezoid, and the bottom of the annular groove is provided with an anti-slip protrusion; The cross section of the annular protrusion is in the shape of an isosceles trapezoid. The top of the annular protrusion is provided with an anti-skid groove. The anti-skid protrusion is clamped in the anti-skid groove. The extension direction of the anti-skid protrusion is parallel to the central axis of the roller.

3. The strong lifting electric roller bracket according to claim 2 is characterized in that: There are at least four annular grooves on the same roller, and a gap is provided between two adjacent annular grooves; there are at least two transmission belts tightened on the roller, and any one of the transmission belts has at least two annular protrusions.

4. The strong lifting electric roller bracket according to claim 1 is characterized in that: The transmission belt is embedded with two metal meshes, namely a first metal mesh and a second metal mesh. The first metal mesh is located inside the conveyor belt, and the outer side wall of the second metal mesh is flush with the outer side wall of the conveyor belt.

5. The strong lifting electric roller bracket according to claim 4 is characterized in that: The mesh openings of the first metal mesh are larger than the mesh openings of the second metal mesh.

6. The strong lifting electric roller bracket according to claim 4 is characterized in that: The first metal mesh and the second metal mesh are connected via springs arranged at equal intervals.

7. The strong lifting electric roller bracket according to claim 1 is 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 symmetry axis plane of the base.

8. The strong lifting electric roller bracket according to claim 7, characterized in that: The motor shaft of the motor extends out of the base, and a first gear is sleeved on the motor shaft; The roller shaft of the roller extends out of the base, and a second gear is sleeved on the roller shaft; The first gear meshes with the second gear.

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