CN219287330U - Vertical bracket for motor rotor of circulating water pump - Google Patents

Abstract

The utility model discloses a vertical bracket for a circulating water pump motor rotor, which is used for supporting the circulating water pump motor rotor and comprises a bottom bracket, a limiting bracket and at least one inspection window, wherein the limiting bracket is arranged by extending upwards from the bottom bracket, the at least one inspection window is arranged on the limiting bracket, and the inspection windows are arranged at intervals along the circumferential direction of the limiting bracket; the bottom bracket comprises a bearing part which is arranged on the top surface and extends from the edge to the center direction, the bearing part is contacted with the iron core of the rotor, and a rotating shaft at one side of the rotor passes through the bearing part and is accommodated in the bottom bracket; the limiting support and the bearing part are enclosed to form a limiting space, and the iron core of the rotor is limited in the limiting space; the vertical bracket avoids high-risk operation of turning over the rotor by the travelling crane lifting appliance, and improves maintenance intrinsic safety; the factors such as height, occupied area, size and the like are fully considered, the bottom bracket and the limit bracket are designed, so that the overhaul is convenient, and the working risk of personnel is reduced; simple structure can stabilize the support rotor, prevents the rotor from turning on one's side.

Description

Vertical bracket for motor rotor of circulating water pump

Technical Field

The utility model relates to the technical field of auxiliary devices of nuclear power plants, in particular to a vertical bracket for a rotor of a motor of a circulating water pump.

Background

The pump station is provided with 2 circulating water pumps in the nuclear power plant, and when its driving motor carries out the maintenance of examining entirely, current circulating water pump motor rotor deposits mainly has 2 modes. Mode 1: the motor rotor needs to use special lifting bar to vertically draw out the rotor and then use the crane to turn over the rotor, turn over it from vertical position to horizontal position and deposit on general rotor storage support, because use the crane barb to turn over, because the structural design of circulating water pump motor rotor uses lifting bar and suspender to carry out two-point type barb upset processes and has great industrial safety risk, the suspender easily deviate from the lifting bar, the very easy wearing and tearing cutting suspender when the suspender scrapes rotor core simultaneously, and because circulating water pump motor rotor appearance is great, horizontal position deposit area is great. Mode 2: the motor rotor is continuously hung on the rotor to be placed on the ground by using the travelling crane after the rotor is vertically pulled out, the travelling crane resource is required to be occupied for a long time by the mode, synchronous development of other important overhaul activities is influenced, the maintenance efficiency is reduced, and the large industrial safety risk exists in a storage mode that the travelling crane is occupied for a long time and is not stably supported.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a vertical bracket for a rotor of a water circulating pump motor aiming at the defects in the prior art.

The technical scheme adopted for solving the technical problems is as follows: the vertical bracket comprises a bottom bracket, a limiting bracket and at least one inspection window, wherein the limiting bracket is upwards extended from the bottom bracket, the at least one inspection window is arranged on the limiting bracket, and the inspection windows are arranged at intervals along the circumferential direction of the limiting bracket;

the bottom bracket comprises a bearing part which is arranged on the top surface and extends from the edge to the center direction, the bearing part is in contact with the iron core of the rotating shaft, and the rotating shaft at one side of the rotor penetrates through the bearing part and is accommodated in the bottom bracket;

the limiting support and the bearing part enclose to form a limiting space, and the iron core of the rotor is limited in the limiting space.

Further, preferably, the limiting support is connected with a plurality of adjustable support rods, each of the adjustable support rods is arranged at intervals along the circumferential direction of the limiting support, and the adjustable support rods relatively move along the radial direction of the limiting space, so that the inner end surface of the adjustable support rod is abutted against the iron core of the rotor.

Further, preferably, the vertical support further comprises a flexible coating layer, and the flexible coating layer is arranged on the inner end surface of the adjustable support rod, which is abutted against the iron core of the rotor.

Further, preferably, the vertical support further includes a flexible cushion pad disposed on the support portion.

Further, preferably, a guiding part for guiding the rotor to descend to the limiting space is arranged on the top of the limiting support, the guiding part extends outwards from the edge of the top of the limiting support, and the guiding part is in a horn mouth structure.

Further, preferably, the limiting support is provided with a plurality of inspection windows, and each inspection window is arranged at intervals along the circumferential direction of the limiting support.

Further, it is preferable that the extension height of the limit bracket is greater than 1/2 of the extension length of the iron core.

Further, it is preferable that the top surface and the top surface of the bottom bracket are both circular, and the cross section of the bottom bracket has a trapezoid structure with a smaller upper part and a larger lower part.

Further, it is preferable that the bottom bracket is provided with a plurality of groove-shaped supporting members extending from top to bottom, and each supporting member is circumferentially spaced from the center of the bottom bracket.

Further, preferably, the limiting support includes a plurality of arc-shaped limiting walls, each limiting wall is circumferentially spaced at intervals with the center of the bearing portion, the viewing window is formed between adjacent limiting walls, a plurality of reinforcing ribs extending from top to bottom are arranged outside each limiting wall, and the width of each reinforcing rib is gradually widened from top to bottom.

The implementation of the utility model has the following beneficial effects: the vertical bracket changes the storage mode of the existing circulating water pump motor rotor, avoids the high-risk operation of turning the rotor by the crane sling, and improves the maintenance intrinsic safety; the factors such as height, occupied area, size and the like are fully considered, the bottom bracket and the limit bracket are designed, so that the overhaul is convenient, and the working risk of personnel is reduced; the utility model has simple structure, can firmly support the rotor, prevents the rotor from turning on one's side, has practical function, saves the use cost and has strong economy; the production is simple and can preserve for a long time, and the installation is dismantled conveniently, and integral type device avoids losing.

Drawings

The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular descriptions of exemplary embodiments of the utility model as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the utility model.

FIG. 1 is a schematic view of the structure of some embodiments of the vertical support of the present utility model;

FIG. 2 is a top view of some embodiments of the vertical support of the present utility model;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic structural view of a support member of the vertical stand of the present utility model;

FIG. 5 is a schematic structural view of a reinforcing rib of the vertical bracket of the present utility model;

FIG. 6 is a schematic view of the structure of the flexible cushion of the vertical support of the present utility model;

fig. 7 is an enlarged view of the adjustable support bar of fig. 1.

Detailed Description

Embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While embodiments of the present utility model are illustrated in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the utility model. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and may be, for example, fixedly connected or detachably connected or integrally formed; can be mechanically or electrically connected; 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.

Fig. 1-3 illustrate a vertical support for a circulating water pump motor rotor in accordance with some preferred embodiments of the present utility model. The vertical bracket comprises a bottom bracket 1, a limiting bracket 2 which is arranged by extending upwards from the bottom bracket 1, and a viewing window 3 which is arranged on the limiting bracket 2; the bottom bracket 1 and the limit bracket 2 form a basic structure of the vertical bracket, because the weight of the rotor is large and is about 2T, the bottom bracket 1 and the limit bracket 2 both need certain supporting strength, a side rotating shaft of the motor rotor is hung in from the axial direction and then stretches into the bottom bracket 1, and is not directly contacted with the inner wall of the bottom bracket 1, the suspension is arranged in the bottom bracket 1, one side surface of an iron core of the rotor is directly contacted with the top surface of the bottom bracket 1, the iron core of the rotor is limited in the limit bracket 2, and the limit bracket 2 prevents rollover caused by overlarge weight of the rotor.

The inspection window 3 is used for overhauling, and the staff overhauls rotor core through inspection window 3, and inspection window 3 can set up one, can set up a plurality ofly, preferably sets up a plurality ofly, and inspection window 3 sets up along spacing support 2 circumference interval to satisfy the staff to the maintenance work of whole rotor core, need not to lift by crane work such as upset again.

Specifically, the bottom bracket 1 includes the supporting part 11 that sets up in the top surface and extend by the edge to central direction, and supporting part 11 contacts with the iron core of pivot, and supporting part 11 is used for the iron core of bearing rotor, and supporting part 11 and rotor core looks adaptation, here the looks adaptation refer to shape, structure, the size phase-match of supporting part 11 as far as with rotor contact part's shape, structure, size for supporting part 11 can steadily hold up the rotor core, has avoided the application of force to rotor core copper bar to lead to parts such as inside conducting ring of iron core not hard up. The supporting part 11 is provided with a through hole 111 for the rotating shaft to pass through, and one side rotating shaft of the rotor passes through the through hole 111 of the supporting part 11 and is accommodated in the bottom bracket 1. The limiting support 2 and the bearing part 11 enclose to form a limiting space 20, the iron core of the rotor is limited in the limiting space 20, and the limiting support 2 radially limits the iron core of the rotating shaft to prevent the side turning of the rotating shaft.

The vertical bracket changes the storage mode of the existing circulating water pump motor rotor, avoids the high-risk operation of turning the rotor by the crane sling, and improves the maintenance intrinsic safety; the factors such as height, occupied area and size are fully considered, the bottom bracket 1 and the limit bracket 2 are designed, so that the overhaul is convenient, and the working risk of personnel is reduced; the utility model has simple structure, can firmly support the rotor, prevents the rotor from turning on one's side, has practical function, saves the use cost and has strong economy; the production is simple and can preserve for a long time, and the installation is dismantled conveniently, and integral type device avoids losing.

In some preferred embodiments of the present utility model, as shown in fig. 1-3 and 7, a plurality of adjustable support rods 4 are connected to the limiting support 2, each adjustable support rod 4 is circumferentially spaced along the limiting support 2, and the adjustable support rods 4 relatively move along the radial direction of the limiting space 20, so that the inner end surface of the adjustable support rod 4 is abutted against the iron core of the rotor; specifically, a threaded hole is formed in the limiting support 2, the adjustable support rod 4 is a threaded rod, one end of the threaded rod passes through the threaded hole through a nut, and the other end of the threaded rod is an inner end face contacted with the iron core; preferably, one end of the threaded rod extending to the iron core is of an arc-shaped block structure matched with the outer wall of the iron core, or one end of the threaded rod extending to the iron core is of a disc structure, the inner end face of the arc-shaped block structure or the disc structure can be separated from and tightly attached to the outer surface of the iron core, so that the inner end face is better abutted to the iron core, the adjustable support rod 4 provides radial supporting force for the iron core, the extension length of the adjustable support rod 4 is adjusted through rotating operation, and side turning of the iron core due to overweight is prevented. Further, it is preferable that two adjustable support rods 4 are provided, and the two adjustable support rods 4 are provided at opposite sides of the core, so as to balance the radial supporting force provided to the core; or three adjustable support rods 4 are arranged, and the three adjustable support rods 4 are arranged in a triangular mode so as to form a stable support structure; or the four adjustable support rods 4 are arranged, and the four adjustable support rods 4 are distributed around the iron core along the circumferential direction of the limit bracket 2 at intervals. The number of the adjustable support rods 4 is not limited herein.

In some preferred embodiments of the present utility model, as shown in fig. 1, 3 and 7, the vertical support further includes a flexible coating layer 5, where the flexible coating layer 5 may be made of a polyurethane soft material, and the flexible coating layer 5 is disposed on an inner end surface of the adjustable support rod 4 abutting against the iron core of the rotor; the flexible material can be made of rubber material, for example, the arrangement of the flexible coating layer 5 plays a role in protecting the rotor, so that the contact surface of the rotor is prevented from being bumped and ground when being placed, and the iron core is prevented from being worn.

In some preferred embodiments of the present utility model, as shown in fig. 6, the vertical support further includes a flexible cushion pad 6, where the flexible cushion pad 6 is disposed on the support portion 11; specifically, the supporting part 11 is provided with a through hole 111 through which the active rotating shaft passes, the flexible buffer pad 6 can be in a circular ring shape, the circular ring-shaped flexible buffer pad 6 is designed along the edge of the through hole 111, and the flexible buffer pad 6 is used for buffering and protecting a rotor iron core and the supporting part 11, so that the rotor contact surface is prevented from being worn when being placed; in particular, the flexible cushion 6 is made of polyurethane with a thickness of at least 25mm to provide a better protection.

In some preferred embodiments of the present utility model, as shown in fig. 1, a guiding portion 7 for guiding the rotor to descend into the limiting space 20 is provided on the top of the limiting bracket 2, the guiding portion 7 extends outwards from the top edge of the limiting bracket 2, the guiding portion 7 has a bell mouth structure, and the guiding portion 7 is designed to enable the rotor to be quickly suspended into the vertical bracket along the guiding of the guiding portion 7.

In some preferred embodiments of the utility model, the limit bracket 2 is in a cylindrical structure, the limit bracket 2 is provided with through grooves with upward openings, the through grooves form the inspection windows 3, and the through grooves are arranged at intervals along the circumferential direction of the limit bracket 2 so as to meet the maintenance work of workers on the whole rotor core, and the work of lifting, overturning and the like is not needed again.

In some preferred embodiments of the present utility model, the extending height of the limiting support 2 extending upward on the bottom support 1 is greater than 1/2 of the extending length of the iron core, that is, the limiting support 2 is enclosed to a half position or higher of the height of the iron core, so as to better ensure the stability of the rotor and prevent the rotor from turning over.

In some preferred embodiments of the present utility model, the top surface and the top surface of the bottom bracket 1 are both circular, the top surface and the bottom surface are connected by the supporting columns or the supporting connecting walls, the cross section of the whole bottom bracket 1 is in a trapezoid structure with a smaller top and a larger bottom, the bottom bracket 1 with a smaller top and a larger bottom is more firm at the bottom of the vertical bracket, the bottom bracket 1 has better grip, the bottom bracket 1 has better bearing capacity, and the bearing capacity of the bottom bracket 1 at least meets the rotor weight which is not less than 1.5 times.

In some preferred embodiments of the present utility model, in order to make the bearing capacity of the vertical support stronger due to the heavy weight of the rotor, the bottom support 1 is provided with a plurality of groove-shaped supporting members 12 extending from top to bottom, and the grooves may be triangular grooves disposed opposite to the rotating shaft, as shown in fig. 4, and each supporting member 12 is circumferentially spaced at intervals with the center of the bottom support 1. The supporting piece 12 can be a connecting piece between the top surface and the bottom surface of the bottom bracket 1, and ensures that the bottom bracket 1 has certain supporting strength while connecting the top surface and the bottom surface; or an additional reinforcing member for reinforcing the mechanical strength of the bottom bracket 1; in a specific embodiment, the top and bottom of the bottom bracket 1 are both ring-shaped structures, and the supporting member 12 may be a channel steel, and the top and bottom are integrally formed by welding the channel steel.

In some preferred embodiments of the present utility model, as shown in fig. 1 and 3, the limiting bracket 2 includes a plurality of arc-shaped limiting walls 21, each limiting wall 21 is circumferentially spaced from the center of the supporting portion 11, and each limiting wall 21 and the supporting portion 11 enclose a limiting space 20 to support the limiting rotor. Specifically, the limiting wall 21 may be a steel plate structure welded to the bottom bracket 1. A viewing window 3 is formed between adjacent limiting walls 21 for viewing during service. In order to increase the mechanical strength of the limiting support 2, a plurality of reinforcing ribs 22 extending from top to bottom are arranged outside each limiting wall 21, as shown in fig. 5, the width of each reinforcing rib 22 is gradually widened from top to bottom, so that the limiting support 2 can well limit and support the rotor, and the rotor is prevented from turning on one's side.

The aspects of the present utility model have been described in detail hereinabove with reference to the accompanying drawings. In the foregoing embodiments, the descriptions of the embodiments are focused on, and for those portions of one embodiment that are not described in detail, reference may be made to the related descriptions of other embodiments. Those skilled in the art will also appreciate that the acts and modules referred to in the specification are not necessarily required for the present utility model. In addition, it can be understood that the steps in the method of the embodiment of the present utility model may be sequentially adjusted, combined and pruned according to actual needs, and the modules in the device of the embodiment of the present utility model may be combined, divided and pruned according to actual needs.

The foregoing description of embodiments of the utility model has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the improvement of technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims (10)

1. The vertical bracket is used for supporting the rotor of the circulating water pump motor and is characterized by comprising a bottom bracket (1), a limiting bracket (2) which is arranged by extending upwards from the bottom bracket (1) and at least one inspection window (3) which is arranged on the limiting bracket (2), wherein the inspection windows (3) are arranged at intervals along the circumferential direction of the limiting bracket (2);

the bottom bracket (1) comprises a bearing part (11) which is arranged on the top surface and extends from the edge to the center direction and is used for bearing the rotor, the bearing part (11) is in contact with the iron core of the rotor, and a rotating shaft at one side of the rotor passes through the bearing part (11) and is accommodated in the bottom bracket (1);

the limiting support (2) and the bearing part (11) are enclosed to form a limiting space (20), and the iron core of the rotor is limited in the limiting space (20).

2. The vertical support for the circulating water pump motor rotor according to claim 1, wherein the limiting support (2) is connected with a plurality of adjustable support rods (4), each adjustable support rod (4) is arranged at intervals along the circumferential direction of the limiting support (2), and the adjustable support rods (4) relatively move along the radial direction of the limiting space (20) so that the inner end surface of each adjustable support rod (4) is abutted against the iron core of the rotor.

3. The vertical support for the circulating water pump motor rotor according to claim 2, further comprising a flexible coating layer (5), wherein the flexible coating layer (5) is arranged on the inner end surface of the adjustable support rod (4) abutted against the iron core of the rotor.

4. The vertical support for the electric motor rotor of a circulating water pump according to claim 1, characterized in that it further comprises a flexible cushion pad (6), said flexible cushion pad (6) being arranged on said support (11).

5. The vertical bracket for the circulating water pump motor rotor according to claim 1, wherein a guiding part (7) for guiding the rotor to descend to the limiting space (20) is arranged on the top of the limiting bracket (2), the guiding part (7) extends outwards from the edge of the top of the limiting bracket (2), and the guiding part (7) is in a horn mouth structure.

6. The vertical bracket for the circulating water pump motor rotor according to claim 1, wherein the limiting bracket (2) is of a cylindrical structure, through grooves with upward openings are formed in the limiting bracket (2), the through grooves form the inspection window (3), and the through grooves are arranged at intervals along the circumferential direction of the limiting bracket (2).

7. The vertical bracket for the circulating water pump motor rotor according to claim 1, wherein the extension height of the limiting bracket (2) is greater than 1/2 of the extension length of the iron core.

8. The vertical bracket for the circulating water pump motor rotor according to claim 1, wherein the top surface and the top surface of the bottom bracket (1) are both round, and the cross section of the bottom bracket (1) is in a trapezoid structure with a small upper part and a large lower part.

9. The vertical support for the circulating water pump motor rotor according to claim 8, wherein the bottom support (1) is provided with a plurality of groove-shaped supporting pieces (12) extending from top to bottom, and the supporting pieces (12) are circumferentially distributed at intervals at the center of the bottom support (1).

10. The vertical bracket for the circulating water pump motor rotor according to claim 1, wherein the limiting bracket (2) comprises a plurality of arc limiting walls (21), each limiting wall (21) is circumferentially distributed at intervals with the center of the supporting portion (11), the inspection window (3) is formed between adjacent limiting walls (21), a plurality of reinforcing ribs (22) extending from top to bottom are arranged outside each limiting wall (21), and the width of each reinforcing rib (22) is gradually widened from top to bottom.

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