CN217109079U

CN217109079U - Monitoring and early warning system for storage amount of grease in bearing

Info

Publication number: CN217109079U
Application number: CN202220969901.1U
Authority: CN
Inventors: 沙德生; 王玉玉; 张庆; 李芊; 邹歆; 梁晏萱
Original assignee: Huaneng Clean Energy Research Institute
Current assignee: Huaneng Clean Energy Research Institute
Priority date: 2022-04-25
Filing date: 2022-04-25
Publication date: 2022-08-02
Anticipated expiration: 2032-04-25

Abstract

The utility model discloses a grease memory space monitoring early warning system in bearing belongs to wind power generation equipment technical field, aims at solving among the prior art unable bearing of judgement and is in the condition that lubricating grease lacks or lubricating grease is too much. The utility model provides a store up fat jar and pass through grease distributor to annotate fat point injection lubricating grease on the bearing, the oil level sensor in the fat jar will detect the lubricating grease oil level information feedback in the fat jar of storage and give the PLC controller. The grease collection bottle collects the lubricating grease left after the bearing is lubricated, and a first weighing sensor in the grease collection bottle feeds back the weight information of the detected lubricating grease in the grease collection bottle to the PLC. The PLC acquires the difference value between the injected lubricating grease and the discarded lubricating grease, and sends out an alarm signal when the abnormal oil quantity is detected according to the oil quantity borne by the bearing, so that the alarm unit is controlled to alarm, and the missing or excessive state of the oil storage quantity in the bearing is mastered.

Description

Monitoring and early warning system for storage amount of grease in bearing

Technical Field

The utility model belongs to the technical field of wind power generation equipment, a grease memory space monitoring early warning system in bearing is related to.

Background

The pitch bearing, the main shaft bearing and the yaw rolling bearing of the wind driven generator all need to maintain good lubrication, and reliable operation can be guaranteed. Because the variable-pitch bearing, the main shaft bearing and the yaw rolling bearing all belong to a medium-low speed heavy-load closed structure, whether the internal grease storage capacity meets the design and use requirements is difficult to perceive.

The conventional wind driven generator variable pitch bearing, a main shaft bearing and a yaw rolling bearing are lubricated by regularly and manually injecting grease or automatically lubricated by a lubricating pump, an oil collecting bottle or a grease receiving disc is used for collecting waste grease, but the amount of the discharged waste grease is not monitored, so that the condition that the bearing is in a state of grease deficiency or excessive grease cannot be judged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the problem among the prior art, provide a grease memory space monitoring early warning system in bearing, aim at solving among the prior art and can't judge that the bearing is in the defective technical problem of grease disappearance or the too much state of grease.

In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:

the utility model provides a grease memory space monitoring and early warning system in bearing, including bearing lubricating arrangement, abandonment grease collection device, PLC controller and alarm unit; the bearing lubricating device comprises a grease storage tank, a grease distributor and a grease injection point; the waste grease collecting device comprises a grease collecting bottle; a plurality of grease injection points and a plurality of grease collection bottles are arranged;

the plurality of grease injection points are all arranged on the upper wall surface of the bearing, the grease injection points are connected with the grease distributor, the grease distributor is connected with the grease storage tank, and an oil level sensor is arranged in the grease storage tank; the grease collection bottles are all arranged on the lower wall surface of the bearing, and a first weighing sensor is arranged in each grease collection bottle; the output port of the oil level sensor is connected with the first input port of the PLC; the output port of the first weighing sensor is connected with the second input port of the PLC; and the output port of the PLC is connected with the alarm unit.

Preferably, the waste grease collecting device further comprises a grease receiving disc; the grease receiving disc is located right below the bearing.

Preferably, a second weighing sensor is installed in the grease receiving disc; and the output port of the second weighing sensor is connected with the third input port of the PLC.

Preferably, the grease storage tank and the grease dispenser are connected by a pipeline.

Preferably, the grease dispenser and the grease injection point are connected by a pipeline.

Preferably, a lubricating pump is mounted on the grease storage tank.

Preferably, the fuel level sensor, the first weighing sensor, the second weighing sensor and the alarm unit are all electrically connected with the PLC controller.

Preferably, the grease injection spot is welded on the upper wall surface of the bearing; the grease collection bottle is welded on the lower wall surface of the bearing.

Preferably, a plurality of the grease injection points are arranged at equal intervals; a plurality of the grease collection bottles are arranged at equal intervals.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model provides a grease memory space monitoring and early warning system in bearing, through installing a plurality of notes fat points on the bearing upper wall, can inject grease from the fat storage tank through the grease distributor, guarantee that the bearing obtains abundant lubrication; residual grease in the bearing can be stored by installing a plurality of grease collecting bottles on the lower wall surface of the bearing; a first weighing sensor is arranged in the grease collecting bottle, so that the weight of grease in the grease storage bottle can be detected; an oil level sensor is arranged in the grease storage tank, so that the oil level information of grease in the grease storage tank can be detected; and finally, an oil level sensor in the grease storage tank and a first weighing sensor in the grease collecting bottle are respectively connected with the PLC, collected oil level information and weight information of grease can be transmitted to the PLC, and the PLC detects that the grease amount is abnormal according to the grease bearing amount of the bearing and sends an alarm signal, so that the alarm unit is controlled to alarm, and the state of the grease storage amount in the bearing is mastered.

Furthermore, the grease receiving disc is arranged right below the bearing, so that the residual grease amount after the bearing is lubricated can be fully collected, and the obtained grease storage amount is more accurate.

Further, a plurality of annotate the equidistant setting of fat point and a plurality of collection fat bottle, can make the bearing obtain abundant lubrication, and then obtain more accurate surplus grease volume.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is the structure diagram of the grease storage space monitoring and early warning system in the bearing.

Wherein: 1-a lubrication pump; 2-a fat storage tank; 3-a grease dispenser; 5-grease injection point; 6-grease collection bottle; 7-connecting a grease tray; 8-a PLC controller; 9-alarm unit.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "lower", "horizontal", "inner", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship that the product of the present invention is usually placed when in use, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be interpreted as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the term "horizontal", if present, does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The present invention will be described in further detail with reference to the accompanying drawings:

the utility model discloses a grease memory space monitoring early warning system in bearing, as shown in figure 1, including bearing lubricating arrangement, abandonment grease collection device, PLC controller 8 and alarm unit 9, annotate fat point 5 and fat bottle 6 and all have a plurality of.

The bearing lubricating device comprises a grease storage tank 2, a grease distributor 3 and a grease injection point 5; a plurality of is annotated fat point 5 and is all installed at the last wall of bearing, annotates fat point 5 and is connected with grease distributor 3, and grease distributor 3 is connected with fat storage tank 2, installs oil level sensor in the fat storage tank 2, installs lubricating pump 1 on the fat storage tank 2.

The waste grease collecting device comprises a grease collecting bottle 6 and a grease receiving disc 7; a plurality of grease collection bottles 6 are all arranged on the lower wall surface of the bearing, and a first weighing sensor is arranged in each grease collection bottle 6; and the grease receiving disc 7 is positioned right below the bearing, and a second weighing sensor is arranged in the grease receiving disc 7.

A first input port of the PLC 8 is connected with an output port of the oil level sensor; a second input port of the PLC controller 8 is connected with an output port of the first weighing sensor; a third input port of the PLC controller 8 is connected with an output port of the second weighing sensor; an output port of the PLC controller 8 is connected with the alarm unit 9, and specifically, the oil level sensor, the first weighing sensor, the second weighing sensor and the alarm unit 9 are all electrically connected with the PLC controller 8.

Preferably, the grease reservoir 2 and the grease dispenser 3 are connected by a pipeline; the grease distributor 3 and the grease injection point 5 are connected by a pipeline.

The grease injection point 5 is welded on the upper wall surface of the bearing; and the grease collection bottle 6 is welded on the lower wall surface of the bearing.

The plurality of grease injection points 5 are arranged at equal intervals, so that the bearing can be fully lubricated; a plurality of grease collection bottles 6 are arranged at equal intervals, and the purpose is to obtain more accurate residual grease amount.

A monitoring and early warning method of a monitoring and early warning system for the storage amount of grease in a bearing comprises the following steps:

grease is injected into the grease distributor 3 through the grease storage tank 2, the grease distributor 3 injects the grease into the bearing through the grease injection point 5, and the residual grease in the bearing flows into the grease collection bottle 6;

the oil level sensor in the grease storage tank 2 and the first weighing sensor in the grease collection bottle 6 transmit the oil level information in the grease storage tank 2 and the weight information of grease in the grease collection bottle 6 to the PLC 8, the PLC 8 sends out an alarm signal when detecting that the grease amount is abnormal according to the grease bearing amount of the bearing, and the PLC 8 controls the alarm unit 9 to alarm so as to realize monitoring and early warning of the grease storage amount in the bearing.

The working principle and the working process of the early warning system are as follows:

grease storage tank 2 injects lubricating grease to grease injection point 5 on the bearing through grease distributor 3, and the oil level sensor in grease storage tank 2 feeds back the detected lubricating grease level information in grease storage tank 2 to PLC controller 8. Grease collection bottle 6 collects the grease remaining after bearing lubrication, and the first weighing sensor in grease collection bottle 6 feeds back the detected weight information of the grease in grease collection bottle 6 to PLC controller 8. The PLC 8 acquires the difference value between the injected lubricating grease and the discharged lubricating grease, and sends out an alarm signal when the abnormal oil quantity is detected according to the oil quantity borne by the bearing, thereby controlling the alarm unit 9 to alarm and master the state of the oil storage quantity in the bearing.

The utility model provides a pair of grease memory space monitoring early warning system in bearing can be applicable to among aerogenerator change oar bearing, main shaft bearing and the antifriction bearing of driftage.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A monitoring and early warning system for the storage amount of grease in a bearing is characterized by comprising a bearing lubricating device, a waste grease collecting device, a PLC (programmable logic controller) controller (8) and an alarm unit (9); the bearing lubricating device comprises a grease storage tank (2), a grease distributor (3) and a grease injection point (5); the waste grease collecting device comprises a grease collecting bottle (6); the number of the grease injection points (5) and the number of the grease collection bottles (6) are respectively multiple;

the grease injection points (5) are all arranged on the upper wall surface of the bearing, the grease injection points (5) are connected with the grease distributor (3), the grease distributor (3) is connected with the grease storage tank (2), and an oil level sensor is arranged in the grease storage tank (2); the grease collection bottles (6) are all arranged on the lower wall surface of the bearing, and a first weighing sensor is arranged in each grease collection bottle (6); the output port of the oil level sensor is connected with the first input port of the PLC (8); the output port of the first weighing sensor is connected with the second input port of the PLC (8); and the output port of the PLC (8) is connected with the alarm unit (9).

2. The system for monitoring and warning storage amount of grease in a bearing according to claim 1, wherein the waste grease collecting device further comprises a grease receiving disc (7); the grease receiving disc (7) is positioned right below the bearing.

3. The monitoring and early warning system for the storage amount of the grease in the bearing as claimed in claim 2 is characterized in that a second weighing sensor is arranged in the grease receiving disc (7); and the output port of the second weighing sensor is connected with the third input port of the PLC (8).

4. The system for monitoring and warning storage amount of grease in a bearing as claimed in claim 1, wherein the grease storage tank (2) and the grease distributor (3) are connected through a pipeline.

5. The system for monitoring and warning storage amount of grease in a bearing as claimed in claim 1, wherein the grease distributor (3) and the grease injection point (5) are connected through a pipeline.

6. The monitoring and early warning system for the grease storage quantity in the bearing as claimed in claim 1 is characterized in that a lubricating pump (1) is mounted on the grease storage tank (2).

7. The monitoring and early-warning system for the grease storage quantity in the bearing as claimed in claim 1, characterized in that the oil level sensor, the first weighing sensor, the second weighing sensor and the warning unit (9) are all electrically connected with the PLC (8).

8. The monitoring and early warning system for the storage amount of the grease in the bearing as claimed in claim 1 is characterized in that the grease injection point (5) is welded on the upper wall surface of the bearing; and the grease collection bottle (6) is welded on the lower wall surface of the bearing.

9. The monitoring and early warning system for the storage amount of the grease in the bearing as claimed in claim 1 is characterized in that a plurality of grease injection points (5) are arranged at equal intervals; a plurality of the grease collection bottles (6) are arranged at equal intervals.