CN218822036U - Generator excitation carbon brush wear monitoring device - Google Patents

Abstract

The utility model discloses a generator excitation carbon brush wear monitoring device, including the installing support, carbon brush groove box, carbon brush ejector pin, compression spring, first lock nut, pull rod formula displacement sensor and host computer, the installing support includes first plate body and connects perpendicularly in the second plate body at first plate body top, carbon brush groove box is connected on first plate body, be equipped with first through-hole on the second plate body, carbon brush ejector pin passes and is connected with the carbon brush in the carbon brush groove box from first through-hole, first lock nut threaded connection is on the carbon brush ejector pin between second plate body and the carbon brush, the compression spring cover is established on the carbon brush ejector pin, one end butt second plate body, the first lock nut of other end butt, pull rod formula displacement sensor's pull rod is connected with a tie plate, tie plate is connected with carbon brush ejector pin upper end, host computer and pull rod formula displacement sensor communication connection. The utility model discloses a set up displacement sensor and host computer and realize the remote monitoring to carbon brush wearing and tearing situation.

Description

Generator excitation carbon brush wear monitoring device

Technical Field

The utility model relates to a carbon brush wear monitoring technology field. More specifically, the utility model relates to a generator excitation carbon brush wear monitoring devices.

Background

The carbon brush is located at the position of the dynamic and static junction of the generator and is a device for dynamic and static contact and energy exchange of the generator. When the unit operates, the carbon brush of the generator needs to be in close contact with the surface of the collecting ring and continuously rubs, so that energy transfer between the dynamic and static parts of the generator can be realized. Due to the long-time continuous mechanical friction, the abrasion and replacement of the carbon brush of the generator are frequent and daily. The carbon brush abraded to a certain degree needs to be replaced in time, otherwise, the danger that the top of the brush holder touches and slips the surface of the collecting ring exists, even the position is ignited to cause the faults of heating, breakage, damage or looseness and the like of the component, and therefore the unit is not stopped. Therefore, it is necessary to monitor the wear amount of the carbon brush in real time. The patent with the application number of 201920029043.0 discloses a generator carbon brush wear loss monitoring device which comprises a mounting bracket, a carbon brush groove box, a carbon brush ejector rod, a pointer and a carbon brush indicating scale which is fixed relative to the mounting bracket and used for displaying the descending position of the pointer, wherein scales used for being arranged opposite to the pointer are arranged on the carbon brush indicating scale; carbon brush groove box and installing support fixed connection, be equipped with the carbon brush guiding hole that supplies the carbon brush to pass through on the carbon brush groove box, the carbon brush ejector pin sets up the one end at the carbon brush groove box, be used for withstanding the carbon brush, and follow the carbon brush along the motion of carbon brush guiding hole, pointer fixed connection is on the carbon brush ejector pin, it is fixed through carbon brush ejector pin and carbon brush, the carbon brush ejector pin moves down along with the carbon brush, and then drive the pointer and remove, the staff corresponds position numerical value through the scale of reading the pointer on carbon brush indicator scale, can know the carbon brush in service behavior, and then judge whether need change the carbon brush, the work efficiency of generator has been improved effectively, however, in generator working process, can't carry out real-time supervision to the carbon brush wearing and tearing degree, certain inconvenience has, therefore, we propose a generator carbon brush wearing and tearing volume monitoring devices, in order to solve the above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.

The utility model also aims at providing a generator excitation carbon brush wear monitoring devices realizes the remote monitoring to the carbon brush wearing and tearing situation through setting up displacement sensor and host computer.

In order to realize the basis the utility model discloses a these purposes and other advantages provide a generator excitation carbon brush wearing and tearing monitoring devices, including installing support, carbon brush groove box, carbon brush ejector pin, compression spring and first lock nut, the installing support includes first plate body and connects perpendicularly in the second plate body at first plate body top, carbon brush groove box connects on first plate body, be equipped with first through-hole on the second plate body, the carbon brush ejector pin is followed pass in the first through-hole and be connected with the carbon brush in the carbon brush groove box, first lock nut threaded connection is on the carbon brush ejector pin between second plate body and the carbon brush, the compression spring cover is established on the carbon brush ejector pin, one end butt second plate body, the first lock nut of other end butt, generator excitation carbon brush wearing and tearing monitoring devices still includes:

the pull rod type displacement sensor is characterized in that a pull rod of the pull rod type displacement sensor is connected with a connecting plate, and the connecting plate is connected with the upper end of the carbon brush ejector rod;

and the upper computer is in communication connection with the pull rod type displacement sensor so as to display the displacement signal fed back by the pull rod type displacement sensor in real time.

Preferably, the generator excitation carbon brush wear monitoring device further includes: proximity switch and alarm, proximity switch with the alarm all with host computer communication connection, proximity switch set up in on the second plate body and with it is relative even the board, perhaps proximity switch set up in even on the board and with the second plate body is relative, in order to be used for sending alarm signal when even board and proximity switch interval reach the threshold value, it is right after alarm signal is received to the host computer alarm sends alarm command, alarm receipt alarm command back warning.

Preferably, the top of the first plate is connected with a third plate, and the pull rod type displacement sensor is connected to the third plate.

Preferably, the connecting plate is provided with a second through hole, and a pull rod of the pull rod type displacement sensor penetrates through the second through hole and is connected with the connecting plate through a pair of second locking nuts.

Preferably, a third through hole is formed in the connecting plate, and the upper end of the carbon brush ejector rod penetrates through the third through hole and is connected with the connecting plate through a pair of third locking nuts.

Preferably, the generator excitation carbon brush wear monitoring device further includes:

the cover shell, the cover shell with second plate body and third plate body form the cavity jointly to with pull rod formula displacement sensor protects wherein, the cover shell with third plate body screwed connection, still be provided with on the cover shell and be used for letting pull rod formula displacement sensor signal line passes the fourth through-hole.

The utility model discloses at least, include following beneficial effect: through setting up displacement sensor, can gather the displacement signal of the carbon brush ejector pin that moves along with the carbon brush in real time, can show this displacement signal in the host computer through setting up the host computer, consequently realized the long-range real-time supervision to carbon brush wearing and tearing volume, even also can know the wearing and tearing situation of carbon brush at generator during operation staff at any time.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic side view of the present invention.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1, the embodiment of the utility model provides a generator excitation carbon brush wear monitoring devices, including installing support, carbon brush groove box 3, carbon brush ejector pin 4, compression spring 5 and first lock nut 6, the installing support includes first plate body 1 and perpendicular connection in the second plate body 2 at 1 top of first plate body, carbon brush groove box 3 is connected on first plate body 1, be equipped with first through-hole on the second plate body 2, carbon brush ejector pin 4 follows pass in the first through-hole and be connected with carbon brush 14 among the carbon brush groove box 3, 6 threaded connection of first lock nut are on carbon brush ejector pin 4 between second plate body 2 and carbon brush 14, here ejector pin 4 can adopt the screw rod, compression spring 5 covers establish on the carbon brush ejector pin 4, one end butt second plate body 2, the first lock nut 6 of other end butt, the 14 wearing and tearing monitoring devices of generator carbon brush still include:

pull rod formula displacement sensor 7, pull rod formula displacement sensor 7's pull rod is connected with a tie plate 8, even the board 8 with carbon brush ejector pin 4 upper end is connected, and is concrete, 1 top of first plate body is connected with third plate body 9, pull rod formula displacement sensor 7 connect in on the third plate body 9, even the second through-hole has been seted up on the board 8, pull rod formula displacement sensor 7's pull rod passes from the second through-hole, and through a pair of second lock nut 10 with even the board 8 is connected, even the third through-hole has been seted up on the board 8, carbon brush ejector pin 4 upper end passes from the third through-hole, and through a pair of third lock nut 11 with even the board 8 is connected.

And the upper computer is in communication connection with the pull rod type displacement sensor 7 so as to display the displacement signal fed back by the pull rod type displacement sensor 7 in real time, and the upper computer is a computer with a display.

In the above embodiment, by arranging the displacement sensor and the connecting plate 8, along with the abrasion of the carbon brush 14, the length of the carbon brush 14 is continuously shortened, the compression spring 5 can press the carbon brush ejector rod 4 downwards, so that the upper end of the carbon brush ejector rod 4 also moves downwards along with the carbon brush ejector rod, the carbon brush ejector rod 4 drives the pull rod of the displacement sensor to move through the connecting plate 8, the displacement signal of the carbon brush ejector rod 4 moving along with the carbon brush 14 can be collected in real time, the displacement signal can be displayed in an upper computer by setting the upper computer, therefore, the remote real-time monitoring on the abrasion loss of the carbon brush 14 is realized, even when the generator works, a worker can know the abrasion condition of the carbon brush 14 at any time, and the worker does not need to be close to the carbon brush 14 during the work of the generator.

Further, in another embodiment, the apparatus for monitoring wear of the generator excitation carbon brush 14 further includes: proximity switch 12 and alarm, proximity switch 12 with the alarm all with host computer communication connection, proximity switch 12 set up in on the second plate body 2 and with it is relative even board 8, or proximity switch set up in even on the board and with the second plate body is relative to be used for sending alarm signal when even board 8 reaches the threshold value with proximity switch 12 interval, it is right behind the upper computer receipt alarm signal the alarm sends alarm command, alarm receipt alarm command back warning.

In the above embodiment, along with carbon brush 14 wearing and tearing, carbon brush 14 length constantly shortens, compression spring 5 can push down carbon brush ejector pin 4, lead to carbon brush ejector pin 4 upper end also to move down thereupon, carbon brush ejector pin 4 drives even board 8 and removes, no matter proximity switch 12 sets up on second plate body 2 or even on board 8, because even board 8 and proximity switch 12 interval reduce, can send alarm signal when reaching proximity switch 12, make the alarm report to the police, thereby give the staff with the warning when carbon brush 14 wearing and tearing volume is low excessively, remind the staff to need to change carbon brush 14.

Further, in another embodiment, the apparatus for monitoring wear of the generator excitation carbon brush 14 further includes:

the housing 13, the housing 13 with the second plate body 2 and the third plate body 9 form a cavity together, so as to protect the pull rod type displacement sensor 7 therein, the housing 13 is in screw connection with the third plate body 9, and the housing 13 is further provided with a fourth through hole for allowing a signal line of the pull rod type displacement sensor 7 to pass through.

In the above embodiment, by providing the housing 13, carbon powder generated during the wear of the carbon brush 14 can be attached to the surfaces of the displacement sensor and the proximity switch 12 as less as possible, so as to ensure that these devices operate accurately as much as possible.

While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.

Claims (6)

1. The utility model provides a generator excitation carbon brush wear monitoring device, includes installing support, carbon brush groove box, carbon brush ejector pin, compression spring and first lock nut, the installing support includes first plate body and connects perpendicularly in the second plate body at first plate body top, carbon brush groove box connects on first plate body, be equipped with first through-hole on the second plate body, the carbon brush ejector pin is followed pass in the first through-hole and be connected with the carbon brush in the carbon brush groove box, first lock nut threaded connection is on the carbon brush ejector pin between second plate body and the carbon brush, the compression spring cover is established on the carbon brush ejector pin, one end butt second plate body, the first lock nut of other end butt, its characterized in that still includes:

the pull rod type displacement sensor is characterized in that a pull rod of the pull rod type displacement sensor is connected with a connecting plate, and the connecting plate is connected with the upper end of the carbon brush ejector rod;

and the upper computer is in communication connection with the pull rod type displacement sensor so as to display the displacement signal fed back by the pull rod type displacement sensor in real time.

2. The generator excitation carbon brush wear monitoring device of claim 1, further comprising: proximity switch and alarm, proximity switch with the alarm all with host computer communication connection, proximity switch set up in on the second plate body and with it is relative even the board, or proximity switch set up in even on the board and with the second plate body is relative to be used for sending alarm signal when even board and proximity switch interval reach the threshold value, it is right after the host computer receives alarm signal the alarm sends alarm command, the alarm receives alarm command back warning.

3. The generator excitation carbon brush wear monitoring device according to claim 1, wherein a third plate body is connected to a top portion of the first plate body, and the pull rod type displacement sensor is connected to the third plate body.

4. The generator excitation carbon brush wear monitoring device according to claim 1, wherein the link plate is provided with a second through hole, and the pull rod of the pull rod type displacement sensor passes through the second through hole and is connected to the link plate through a pair of second locking nuts.

5. The generator excitation carbon brush wear monitoring device according to claim 1, wherein the link plate is provided with a third through hole, and an upper end of the carbon brush ejector rod penetrates through the third through hole and is connected with the link plate through a pair of third locking nuts.

6. The generator excitation carbon brush wear monitoring device of claim 3, further comprising:

the cover shell, the cover shell with second plate body and third plate body form the cavity jointly to with pull rod formula displacement sensor protects wherein, the cover shell with third plate body screwed connection, still be provided with on the cover shell and be used for letting pull rod formula displacement sensor signal line passes the fourth through-hole.

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