CN220542424U - Generator shafting torsional vibration monitoring protection device - Google Patents

Abstract

The utility model discloses a generator shafting torsional vibration monitoring and protecting device, which comprises a shell, wherein two shells are arranged, the opposite central positions of the two shells are provided with mounting grooves, a protecting cover is connected in the mounting grooves, the inner wall of the protecting cover is uniformly provided with a base plate, a rotating shaft is arranged between the two protecting covers, the base plate is of an arc-shaped structure corresponding to the rotating shaft, and the side wall of the rotating shaft is attached to the base plate, so that the generator shafting torsional vibration monitoring and protecting device has the following advantages: through the spring of setting up and cup joint the damping structure in the spring, can cushion the torsional vibration that the pivot produced to with the range of bottom torsional vibration, avoid torsional vibration range too big and influence the normal operating of generator, when the too big top post of torsional vibration range top on alarm switch, remind the staff through the outside siren of alarm switch intercommunication, the staff of being convenient for overhauls in time.

Description

Generator shafting torsional vibration monitoring protection device

Technical Field

The utility model relates to the technical field of torsional vibration protection structures, in particular to a generator shafting torsional vibration monitoring and protecting device.

Background

When the generator rotates, torsional vibration can be generated due to the rotation of the shaft section, the normal operation of the generator can be directly influenced by the torsional vibration, and once the torsional vibration is too large, larger loss can be directly generated in the shafting, so that the service life of the generator can be directly influenced.

The existing generator is not provided with a corresponding torsional vibration protection monitoring device, and the problem caused by torsional vibration can be known only after an accident occurs, so that the torsional vibration protection device is established.

Disclosure of Invention

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a generator shafting torsional vibration monitoring protection device, includes the casing, two casings are established, and the mounting groove has been seted up to the relative central point of its two casings, the mounting groove interconnect has the protection casing, the even backing plate that has set up of protection casing inner wall, two set up the pivot between the protection casing, the backing plate corresponds arc structure with the pivot, and the lateral wall and the backing plate laminating of pivot, one side lateral wall fixedly connected with linking plate of backing plate, the one end fixedly connected with spring of linking plate, two the movable groove has all been seted up to the protection casing inside, the one end of linking plate extends into the movable inslot, the inside lateral wall fixedly connected with spring of movable groove, the one end fixedly connected with of linking plate in the movable inslot is located the lateral wall fixedly connected with horizontal board of one end of movable inslot, and the bottom lateral wall fixedly connected with jack post of horizontal board, the lateral wall fixedly connected with alarm switch in the movable inslot lateral wall and the position that corresponds with jack post, the damping structure has been cup jointed in the spring, the lateral wall fixedly connected with silicon cushion that the linking plate kept away from.

As a preferable technical scheme of the utility model, the two protection covers are mutually far away and the positions of the test grade edges are fixedly connected with mounting plates, through holes are formed in the mounting plates in a penetrating manner, screws are inserted into the through holes, and the protection covers are detachably connected in the mounting grooves of the shell through the mounting plates by using the screws.

The utility model has the following advantages: through the spring of setting up and cup joint the damping structure in the spring, can cushion the torsional vibration that the pivot produced to with the range of bottom torsional vibration, avoid torsional vibration range too big and influence the normal operating of generator, when the too big top post of torsional vibration range top on alarm switch, remind the staff through the outside siren of alarm switch intercommunication, the staff of being convenient for overhauls in time.

Drawings

FIG. 1 is a schematic plan view of a housing and shield according to a preferred embodiment of the present utility model;

FIG. 2 is a schematic perspective view of a protective cover according to a preferred embodiment of the present utility model;

FIG. 3 is a schematic view of the internal plan structure of a shield according to a preferred embodiment of the present utility model;

fig. 4 is an enlarged schematic view of the structure of fig. 3 a according to a preferred embodiment of the present utility model.

Reference numerals illustrate: 1. a housing; 2. a mounting groove; 3. a protective cover; 4. a backing plate; 5. a rotating shaft; 6. a splice plate; 7. a mounting plate; 8. a movable groove; 9. a spring; 10. a top column; 11. an alarm switch.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying 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 thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying positive importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The utility model is further described below with reference to the accompanying drawings.

Referring to fig. 1-4 in combination, the utility model provides a generator shafting torsional vibration monitoring protection device, which comprises a housing 1, wherein two housings 1 are provided, a mounting groove 2 is formed in the opposite central position of each housing 1, a protection cover 3 is connected in each mounting groove 2, a backing plate 4 is uniformly arranged on the inner wall of each protection cover 3, a rotating shaft 5 is arranged between each protection cover 3, each backing plate 4 is of an arc structure corresponding to each rotating shaft 5, the side wall of each rotating shaft 5 is attached to each backing plate 4, a connecting plate 6 is fixedly connected to one side wall of each backing plate 4, one end of each connecting plate 6 is fixedly connected with a spring 9, movable grooves 8 are formed in each protection cover 3, one end of each connecting plate 6 extends into each movable groove 8, one end of each movable groove 8 is fixedly connected with a spring 9, one end of each connecting plate 6 extending into each movable groove 8 is fixedly connected to one end of each spring 9, a damping structure is sleeved in each spring 9, and the side wall of each backing plate 4, which is far away from each connecting plate 6, is fixedly connected with a silicon rubber pad.

When torsional vibration is generated, the rotating shaft 5 can extrude the corresponding backing plate 4, the backing plate 4 is stressed to extrude the connecting plate 6 and finally the spring 9 can be extruded to shrink, so that the torsional vibration generated by the rotating shaft 5 is relieved, the amplitude of the torsional vibration of the rotating shaft 5 is reduced, and because a damping structure is arranged in the spring 9, the spring 9 can effectively relieve the torsional vibration force to form a circle of structure for the backing plate 4, each backing plate 4 is in an independent running state, and the condition that the torsional vibration of the rotating shaft 5 in any direction can be effectively relieved without affecting other backing plates 4 can be ensured.

By the technical means, the negative influence caused by torsional vibration of the rotating shaft 5 can be effectively reduced, and the damage probability of the generator due to torsional vibration is reduced.

The side wall of the connecting plate 6 at one end in the movable groove 8 is fixedly connected with a transverse plate, the bottom side wall of the transverse plate is fixedly connected with an upright jacking column 10, and the bottom side wall in the movable groove 8 is fixedly connected with an alarm switch 11 at a position corresponding to the jacking column 10.

When torsional vibration is larger than the range that the spring 9 can alleviate, the jack post 10 can cause extrusion to the alarm switch 11, because the alarm switch 11 is in remote connection with the installation external alarm, the alarm reminds the staff when the alarm switch 11 is extruded and opened, the staff can make corresponding adjustment and maintenance, the probability that the generator is damaged due to torsional vibration is reduced, and the staff can make fastest response.

The two protection covers 3 are mutually far away from and the equal fixedly connected with mounting panel 7 in position at examination level border, link up on the mounting panel 7 and seted up the through-hole, and peg graft in the through-hole and have the screw, and protection cover 3 passes mounting panel 7 detachable connection in mounting groove 2 of casing 1 through using the screw.

Install protection casing 3 in mounting groove 2 through the screw, be convenient for dismantle the maintenance to protection casing 3 afterwards, improve protection casing 3's life and maintenance efficiency.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Other parts of the present utility model not described in detail are all of the prior art, and are not described in detail herein.

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.

Claims (5)

1. The utility model provides a generator shafting torsional vibration monitoring protection device, includes casing (1), its characterized in that, two casings (1) are established, and mounting groove (2) have been seted up to the central point that two casings (1) are relative, the mounting groove (2) in-connection has protection casing (3), the even backing plate (4) that have set up of protection casing (3) inner wall, two set up pivot (5) between protection casing (3), backing plate (4) correspond arc structure with pivot (5), and the lateral wall and backing plate (4) laminating of pivot (5), one side lateral wall fixedly connected with linking board (6) of backing plate (4), one end fixedly connected with spring (9) of linking board (6).

2. The generator shafting torsional vibration monitoring and protecting device according to claim 1, wherein the two protecting covers (3) are internally provided with movable grooves (8), one end of each connecting plate (6) extends into each movable groove (8), a spring (9) is fixedly connected to the inner side wall of each movable groove (8), and one end of each connecting plate (6) extending into each movable groove (8) is fixedly connected to one end of each spring (9).

3. The generator shafting torsional vibration monitoring and protecting device according to claim 1, wherein the connecting plate (6) is fixedly connected with a transverse plate on the side wall of one end in the movable groove (8), the bottom side wall of the transverse plate is fixedly connected with an upright jacking column (10), and the inner bottom side wall of the movable groove (8) is fixedly connected with an alarm switch (11) at the position corresponding to the jacking column (10).

4. The generator shafting torsional vibration monitoring and protecting device according to claim 1, wherein a damping structure is sleeved in the spring (9), and a silica gel pad is fixedly connected to the side wall of the base plate (4) far away from the connecting plate (6).

5. The generator shafting torsional vibration monitoring and protecting device according to claim 1, wherein the two protecting covers (3) are mutually far away and are fixedly connected with mounting plates (7) at the positions of the test class edges, through holes are formed in the mounting plates (7) in a penetrating mode, screws are inserted into the through holes, and the protecting covers (3) are detachably connected in mounting grooves (2) of the shell (1) by penetrating the mounting plates (7) through the screws.