CN217951047U

CN217951047U - Flexible coupling for nuclear power feed pump

Info

Publication number: CN217951047U
Application number: CN202222252131.1U
Authority: CN
Inventors: 张敏
Original assignee: Shanghai Huazhou Transmission Equipment Co ltd
Current assignee: Shanghai Huazhou Transmission Equipment Co ltd
Priority date: 2022-08-25
Filing date: 2022-08-25
Publication date: 2022-12-02
Anticipated expiration: 2032-08-25

Abstract

The utility model discloses a flexible coupling for nuclear power feed pump relates to flexible coupling technical field, and this flexible coupling for nuclear power feed pump, including initiative half-coupling and driven half-coupling, initiative half-coupling is provided with the connecting cylinder body back to one side of driven half-coupling, set up the shrink chamber in the initiative half-coupling, the connecting cylinder body slides and runs through into the shrink intracavity near the one end of initiative half-coupling, and connecting cylinder body one end fixedly connected with limits the slide, and the surface fixed connection of connecting cylinder body limits the slider, and the restriction spout has been seted up towards a side surface of connecting cylinder body to initiative half-coupling, and this flexible coupling for nuclear power feed pump need not demolish this shaft coupling from between driving motor and the power unit when needs are changed the flexure, has simplified the operating procedure of staff when changing the flexure, has further improved efficiency and speed when the staff changes the flexure, has ensured this flexible coupling's result of use.

Description

Flexible coupling for nuclear power feed pump

Technical Field

The utility model relates to a flexible coupling technical field, in particular to flexible coupling for nuclear power feed pump.

Background

The reactor inner pump is directly arranged at the bottom of a nuclear reactor pressure vessel, the feed pump provides cooling water for the reactor core, the nuclear power feed pump generally adopts a submersible motor as a driver, and a flexible coupling is generally used between the pump body and the submersible motor.

The submersible motor is connected through the coupler, so that the pump body and two shafts of the submersible motor rotate together and transmit torque.

However, most of existing couplings are in actual use, because the couplings need to operate for a long time, the couplings have the problem of overlarge load, and thus damage of flexible parts in the couplings is easily caused, so that the use stability of the couplings needs to be guaranteed, the flexible parts need to be replaced, and meanwhile, because two sides of the couplings are respectively connected with the pump body and the submersible motors, the couplings need to be firstly removed from the pump body and the submersible motors when the flexible parts are replaced, however, in order to guarantee the connection firmness between the couplings and the pump body and between the couplings and the submersible motors, the connection structures between the couplings and the pump body and between the submersible motors are complex, operation steps are complex when workers replace the flexible parts, the efficiency and the replacement speed of the workers when the flexible parts are replaced are reduced, the work intensity of the workers is increased, and the use efficiency of the flexible couplings is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve one of the technical problem that exists among the prior art at least, provide a flexible coupling for nuclear power feed pump, can solve connection structure between shaft coupling and the pump body and the dive formula electricity comparatively complicated, the staff is comparatively loaded down with trivial details when changing the flexible piece operating procedure, has reduced efficiency and change speed when the staff changes the flexible piece, has increased staff's working strength, has reduced the problem of this flexible coupling's availability factor.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a flexible coupling for nuclear power feed pump, includes initiative half-coupling and driven half-coupling, is provided with the flexible piece between initiative half-coupling and the driven half-coupling, and one side that initiative half-coupling is back to driven half-coupling is provided with the connecting cylinder body, set up the shrink chamber in the initiative half-coupling, the connecting cylinder body slides and runs through into the shrink intracavity near the one end of initiative half-coupling, and the connecting cylinder body is located the restriction slide of the one end fixedly connected with and shrink intracavity wall sliding connection of shrink intracavity, and the surface fixedly connected with restriction slider of connecting cylinder body, initiative half-coupling set up towards the side surface of connecting cylinder body with restriction slider sliding connection's restriction spout.

Preferably, a first flange plate is fixedly sleeved on the outer surface of the driving half coupling, a second flange plate is fixedly sleeved on the outer surface of the driven half coupling, and a bolt is arranged between the first flange plate and the second flange plate.

Preferably, a control cavity is formed in the driving half coupling, a fixed sliding rod is arranged in the control cavity, one end of the fixed sliding rod penetrates into the limiting sliding groove in a sliding mode, the other end of the fixed sliding rod penetrates out of the outer surface of the driving half coupling in a sliding mode, and a tooth groove is formed in the surface of one side, facing the fixed sliding rod, of the limiting sliding block.

Preferably, one end of the fixed sliding rod, which is positioned in the limiting sliding groove, is arranged to be matched with the tooth grooves.

Preferably, the outer surface of one end of the fixed sliding rod, which is positioned in the control cavity, is fixedly sleeved with a movable sliding plate which is in sliding connection with the inner wall of the control cavity, and a reset tension spring which is movably sleeved on the fixed sliding rod is fixedly connected between one side of the movable sliding plate, which faces the limiting sliding block, and the inner wall of the control cavity.

Preferably, one end of the fixed sliding rod, which is positioned outside the driving half coupling, is fixedly connected with a pulling block.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) This flexible coupling for nuclear power feed water pump need not demolish this coupling from between driving motor and the power unit when needs are changed the flexure, has simplified the operating procedure of staff when changing the flexure, has further improved efficiency and speed when the staff changes the flexure, has ensured this flexible coupling's result of use.

(2) This flexible coupling for nuclear power feed pump forms the restriction effect to the restriction slider through fixed slide bar to the completion is to the fixed of connecting the barrel, prevents to connect the barrel and appears gliding problem in the shrink intracavity, has further ensured the fastness between connecting the barrel and the initiative half-coupling.

Drawings

The invention will be further described with reference to the following figures and examples:

fig. 1 is a schematic structural view of a flexible coupling for a nuclear power feed pump of the present invention;

FIG. 2 is a flexible removal view of the present invention;

fig. 3 is a partial sectional view of the active half-coupling of the present invention;

fig. 4 is a front plan view of the inner structure of the active half-coupling of the present invention.

Reference numerals: 1. a driving half coupling; 2. connecting the cylinder body; 3. a driven half coupling; 4. a first flange plate; 5. a second flange plate; 6. a flexible member; 7. a contracting cavity; 8. a limiting slide plate; 9. a limiting slide block; 10. a restricting chute; 11. a control chamber; 12. fixing the sliding rod; 13. a tooth socket; 14. a movable skateboard; 15. a return tension spring; 16. and (5) pulling the block.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the terms greater than, less than, exceeding, etc. are understood to exclude the number, and the terms above, below, inside, etc. are understood to include the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a flexible coupling for nuclear power feed pump, includes initiative half-coupling 1 and driven half-coupling 3, is provided with flexible piece 6 between initiative half-coupling 1 and the driven half-coupling 3, and one side that initiative half-coupling 1 is back to driven half-coupling 3 is provided with connecting cylinder 2, therefore initiative half-coupling 1 is connected with the driving motor output shaft through connecting cylinder 1.

Furthermore, the outer surface of the driving half-coupling 1 is fixedly sleeved with a first flange plate 4, the outer surface of the driven half-coupling 3 is fixedly sleeved with a second flange plate 5, and a plurality of bolts are arranged between the first flange plate 4 and the second flange plate 5, so that the driving half-coupling 1 and the driven half-coupling 3 are fixed through the bolts.

Furtherly, set up shrink chamber 7 in the initiative half-coupling 1, connect the barrel 2 and slide to run through into shrink chamber 7 near the one end of initiative half-coupling 1 in, connect the one end fixedly connected with that the barrel 2 is located shrink chamber 7 and shrink 7 inner wall sliding connection's of chamber restriction slide 8, consequently avoided the problem that appears the separation between connecting the barrel 2 and the shrink chamber 7 through restriction slide 8.

Furthermore, the outer surface of the connecting cylinder 2 is fixedly connected with a plurality of limiting sliders 9 arranged in a circumferential array, the number of the limiting sliders 9 is set according to the actual circumference of the connecting cylinder 2, one side surface of the driving half-coupling 1 facing the connecting cylinder 2 is provided with a limiting chute 10 in sliding connection with the limiting sliders 9, therefore, when the driving motor is driven, the connecting cylinder 2 can synchronously drive the driving half-coupling 1 and the driven half-coupling 3 to rotate through extruding the limiting chute 10 by the limiting sliders 9, when the flexible part 6 needs to be replaced, the bolts on the first flange plate 4 and the second flange plate 5 are firstly removed, so that the driving half-coupling 1 can be pushed to displace to one side far away from the driven half-coupling 3 on the connecting cylinder 2, therefore, the driving half-coupling 1 is separated from the driven half-coupling 3, so that the flexible part 6 can be removed from between the driving half-coupling 1 and the driven half-coupling 3, therefore, when the flexible part 6 needs to be replaced, the coupling does not need to be removed from between the driving motor and the power unit, the operation steps of workers when the flexible part 6 is replaced are simplified, the efficiency of the flexible part is further improved, and the use effect of the flexible part is guaranteed.

Referring to fig. 4, a control cavity 11 is formed in the driving half-coupling 1, a fixed slide bar 12 is arranged in the control cavity 11, one end of the fixed slide bar 12 penetrates into the limiting slide groove 10 in a sliding manner, and the other end of the fixed slide bar 12 penetrates out of the outer surface of the driving half-coupling 1 in a sliding manner, a tooth groove 13 is formed in the surface of one side, facing the fixed slide bar 12, of the limiting slide bar 9, and one end, located in the limiting slide groove 10, of the fixed slide bar 12 is matched with the tooth groove 13, so that when the fixed slide bar 12 is displaced into the tooth groove 13, the fixed slide bar 12 forms a limiting effect on the limiting slide bar 9, fixing of the connecting cylinder 2 is completed, the problem that the connecting cylinder 2 slides in the contraction cavity 7 is prevented, and firmness between the connecting cylinder 2 and the driving half-coupling 1 is further guaranteed.

Furthermore, the outer fixed cover of one end that fixed slide bar 12 is located in control chamber 11 is equipped with the activity slide 14 with control chamber 11 inner wall sliding connection, and the activity slide 14 towards one side of restricting slider 9 and control chamber 11 inner wall between fixedly connected with activity cover establish the return extension spring 15 on fixed slide bar 12, return extension spring 15 like this and form the effect of dragging to activity slide 14, further ensured the fastness between fixed slide bar 12 and the tooth's socket 13.

Furthermore, one end of the fixed slide bar 12, which is located outside the driving half-coupling 1, is fixedly connected with a pulling block 16, so that the fixed slide bar 12 can be pulled to move out of the tooth grooves 13 by pulling the pulling block 16, and the driving half-coupling 1 can be pushed to move.

The working principle is as follows: when the flexible part 6 needs to be replaced, the bolts on the first flange plate 4 and the second flange plate 5 are firstly removed, so that the driving half-coupling 1 can be pushed to move towards one side far away from the driven half-coupling 3 on the connecting cylinder 2, the driving half-coupling 1 is separated from the driven half-coupling 3, and the flexible part 6 can be removed from the space between the driving half-coupling 1 and the driven half-coupling 3.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides a flexible coupling for nuclear power feed pump, includes initiative half-coupling (1) and driven half-coupling (3), is provided with flexible piece (6) between initiative half-coupling (1) and driven half-coupling (3), and one side that initiative half-coupling (1) is to driven half-coupling (3) back is provided with connecting cylinder (2), its characterized in that: offer shrink chamber (7) in initiative half-coupling (1), connect barrel (2) to be close to the one end of initiative half-coupling (1) and slide and run through in shrink chamber (7), connect barrel (2) to be located one end fixedly connected with and shrink chamber (7) inner wall sliding connection's restriction slide (8), the outer fixed surface of connecting barrel (2) is connected with restriction slider (9), initiative half-coupling (1) is towards a side surface of connecting barrel (2) offer with restriction slider (9) sliding connection's restriction spout (10).

2. The flexible coupling for a nuclear power feed water pump according to claim 1, characterized in that: the outer fixed cover of initiative half-coupling (1) is equipped with first ring flange (4), and the outer fixed cover of driven half-coupling (3) is equipped with second ring flange (5), is provided with the bolt between first ring flange (4) and second ring flange (5).

3. The flexible coupling for a nuclear power feed water pump according to claim 1, characterized in that: a control cavity (11) is formed in the driving half coupling (1), a fixed sliding rod (12) with one end penetrating into the limiting sliding groove (10) in a sliding mode and the other end penetrating out of the outer surface of the driving half coupling (1) in a sliding mode is arranged in the control cavity (11), and a tooth groove (13) is formed in one side surface, facing the fixed sliding rod (12), of the limiting sliding block (9).

4. The flexible coupling for a nuclear power feed water pump according to claim 3, characterized in that: one end of the fixed sliding rod (12) positioned in the limiting sliding groove (10) is arranged to be matched with the tooth groove (13).

5. The flexible coupling for a nuclear power feed water pump according to claim 3, characterized in that: the outer fixed cover of one end that fixed slide bar (12) are located control chamber (11) is equipped with movable sliding plate (14) with control chamber (11) inner wall sliding connection, and fixedly connected with activity cover is established the extension spring that resets (15) on fixed slide bar (12) towards between one side of restriction slider (9) and control chamber (11) inner wall in movable sliding plate (14).

6. The flexible coupling for a nuclear power feed water pump according to claim 3, characterized in that: and one end of the fixed sliding rod (12) positioned outside the driving half coupling (1) is fixedly connected with a pull block (16).