CN218760241U

CN218760241U - Oil level detection device for grease pump of wind turbine generator

Info

Publication number: CN218760241U
Application number: CN202222719998.3U
Authority: CN
Inventors: 尹剑峰; 罗锦; 朱崇; 马超
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-03-28
Anticipated expiration: 2032-10-17

Abstract

The utility model provides a wind turbine generator system grease pump oil level detection device, including grease pump and conductive needle, hug closely the grease surface in the grease pump and be equipped with the clamp plate, the clamp plate passes through the roof of spring coupling grease pump, the grease pump outside is equipped with the resistance area, the one end and the clamp plate of conductive needle are connected, the other end and the resistance area touch of conductive needle, the clamp plate moves along with the oil level position and drives the conductive needle and remove, PLC is all inserted with the one end in resistance area to the conductive needle, change through the grease oil level and make the clamp plate position change, it removes thereupon to drive the conductive needle, it reachs the grease oil level to change the resistance. The scheme effectively solves the problem of monitoring the residual amount of the grease in the grease pump, can be monitored in real time by combining with the PLC, can timely remind the grease pump to supplement the grease, ensures the normal operation of the wind turbine generator, avoids the mechanical damage caused by the lack of lubricating oil in the wind turbine generator, reduces the occurrence of accidents, and prolongs the service life of the wind turbine generator.

Description

Oil level detection device for grease pump of wind turbine generator

Technical Field

The utility model relates to a wind turbine generator system grease pump, especially a wind turbine generator system grease pump oil level detection device.

Background

When the wind turbine generator runs, a grease pump is needed to be used for filling lubricating grease for lubricating each bearing rolling part, when the grease in the grease pump is used up, the grease pump needs to be replenished with oil, so that the wind turbine generator can continue to work, and often, when the grease pump is in a complete oil shortage state, an alarm is sent to remind a worker to go to the wind turbine generator to replenish the grease pump with the grease; the oil level can not be directly read out from a background system in real time, the oil level can not be reminded to be replenished, the best adding opportunity can be missed easily, the subsequent adding of lubricating oil is not timely, the mechanical friction damage is large, and meanwhile, the fire disaster can happen under the action of strong friction force to cause accidents, so the oil level detection method is a technical problem which needs to be solved urgently at present.

Disclosure of Invention

The utility model aims at overcoming the above-mentioned not enough of prior art, and providing one kind can grease volume in the real-time supervision grease pump, be convenient for can in time supply the grease in toward the grease pump, avoid mechanical damage to guarantee wind turbine generator system grease pump oil level detection device of normal operating.

The technical scheme of the utility model is that: the utility model provides a wind turbine generator system grease pump oil level detection device, includes grease pump and electrically conductive needle, it is equipped with the clamp plate to hug closely the grease surface in the grease pump, the clamp plate passes through the roof of spring coupling grease pump, the grease pump outside is equipped with the resistance area, the one end and the clamp plate of electrically conductive needle are connected, the other end and the resistance area of electrically conductive needle touch, the clamp plate moves along with oil level position and drives electrically conductive needle and remove, electrically conductive needle all inserts PLC with the one end in resistance area, change through the grease oil level and make the clamp plate position change, it moves thereupon to drive electrically conductive needle, it reachs the grease oil level to change the resistance value.

The advantage of this scheme lies in, the removal through the grease page in the grease pump drives the removal of conductive needle, thereby make conductive needle move on the resistance area, it is many that the grease volume in the grease pump is judged according to the change of resistance value in the circuit, be convenient for in time supply grease before the grease consumption, thereby avoid wind turbine generator system operation in-process to lack the grease lubrication and cause mechanical damage, the normal operating of wind turbine generator system has been guaranteed, be convenient for the surplus of grease in the real-time supervision grease pump simultaneously, can also set up the early warning in the PLC system, can remind the operator in time to add the grease when the grease volume in the grease pump reaches the setting value lower limit, thereby guarantee mechanical normal operating.

Furthermore, the resistance belt is arranged on the grease pump through the insulating base, so that the monitoring precision is improved conveniently, and the influence of an external conductor on the change of the resistance is avoided; preferably, the outer side part of the resistance band is provided with an insulating cover for protecting the resistance band and ensuring the precision of the resistance band.

Further, the conductive needle is U-shaped, and a contact is arranged at one end of the conductive needle, which is in contact with the resistance tape; the contact is convenient for improve the contact effect between conductive pin and the resistance area, avoids the contact to break away from the resistance area and influences the monitoring to grease volume in the grease pump.

Furthermore, the contact is arc-shaped or is an elastic conductor, so that the contact effect is convenient to improve, the arc-shaped contact or the elastic conductor can be always kept in contact with the resistance band and is in a power-on state, and the elastic conductor can be an elastic metal sheet, a spring, a mechanical combination of the metal sheet and the like.

Furthermore, the contact is connected with the resistance band in a sliding mode, so that the contact effect and the monitoring precision are improved conveniently.

Furthermore, the resistance band is provided with a sliding groove, the contact is arranged in the sliding groove and moves along the sliding groove, the contact effect of the contact and the resistance band is improved, and the contact is prevented from being separated from the resistance band in the sliding process.

Further, be equipped with the through-hole on the roof, the one end of conducting pin is passed the through-hole and can be dismantled with the clamp plate and be connected, and the setting of through-hole is convenient for play the guide effect to the conducting pin, can also avoid the conducting pin atress excessively to appear warping or breaking.

Further, be equipped with insulating mount pad on the clamp plate, be equipped with the internal thread on the mount pad, be equipped with the external screw thread that matches with the mount pad on the conductive needle, clamp plate and conductive needle threaded connection are convenient for overhaul the change to the conductive needle, improve the facility of using.

The utility model has the characteristics of as follows: the monitoring of the residual amount of the grease in the grease pump is effectively solved, the grease pump can be monitored in real time by combining with a PLC, the grease pump can be timely reminded of supplementing grease, the normal operation of the wind turbine generator is guaranteed, the mechanical damage caused by the lack of lubricating oil in the wind turbine generator is avoided, the occurrence of accidents is reduced, and the service life of the wind turbine generator is prolonged.

The detailed structure of the present invention will be further described with reference to the accompanying drawings and the detailed description.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the working state of the present invention;

the method comprises the following steps of 1-conducting pins, 2-contacts, 3-insulating bases, 4-resistance tapes, 5-grease, 6-grease pumps, 7-pressing plates, 8-top plates, 9-guide rods, 10-springs and 11-through holes.

Detailed Description

As shown in the attached drawings: the utility model provides a 5 pump oil level detection devices of wind turbine generator system grease, including grease pump 6 and conductive needle 1, it is equipped with clamp plate 7 to hug closely 5 surfaces of grease in the grease pump 6, clamp plate 7 passes through the roof 8 that spring 10 connects grease pump 6, the 6 outside of grease pump is equipped with resistance area 4, conductive needle 1's one end is connected with clamp plate 7, conductive needle 1's the other end touches with resistance area 4 and connects, clamp plate 7 moves along with oil level position and drives conductive needle 1 and remove, conductive needle 1 all inserts PLC with the one end of resistance area 4, it changes to make clamp plate 7 position change through 5 oil level changes of grease, it removes along with it to drive conductive needle 1, change resistance value reachs 5 oil levels of grease. Preferably, for preventing spring 10 between clamp plate 7 and the roof 8 from taking place the displacement, be equipped with guide arm 9 in the grease pump 6, the one end and the roof 8 of guide arm 9 can be dismantled and be connected, the guide arm 9 other end is fixed on the center axis of grease pump 6, clamp plate 7 wears to establish on early guide arm 9, clamp plate 7 of being convenient for removes along guide arm 9, clamp plate 7 is equipped with soft rubber ring with the 9 junction of guide arm, avoid grease 5 to spill, the setting of guide arm 9 can play the guide effect to clamp plate 7 and spring 10 homoenergetic, avoid removing the in-process displacement or deformation to appear, improve convenient to use.

In the embodiment, the resistance belt 4 is arranged on the grease pump 6 through the insulating base 3, so that the monitoring precision is improved conveniently, and the influence of an external conductor on the change of the resistance is avoided; preferably, the outer side of the resistive strip 4 is provided with an insulating cover for protecting the resistive strip 4 while ensuring the accuracy of the resistive strip 4.

This scheme is through the removal of 5 pages of grease in grease pump 6 drive the removal of conductive needle 1, thereby make conductive needle 1 remove on resistance area 4, it judges how much of grease 5 volume in grease pump 6 according to resistance value or the change of current value in the circuit, it in time supplyes grease 5 before grease 5 consumption is accomplished to be convenient for, thereby avoid lacking 5 lubrication of grease and causing mechanical damage in the wind turbine generator system operation process, wind turbine generator system's normal operating has been guaranteed, be convenient for real-time supervision grease 5's among the grease pump 6 surplus simultaneously, can also set up the early warning in the PLC system, can remind the operator in time to add grease 5 when grease 5 volume in grease pump 6 reaches the setting value lower limit, thereby guarantee mechanical normal operating.

In the embodiment, the conductive needle 1 is U-shaped, and a contact 2 is arranged at one end of the conductive needle 1, which is contacted with the resistance tape 4; the contact 2 is arranged, so that the contact effect between the conductive needle 1 and the resistance belt 4 is improved, and the contact 2 is prevented from being separated from the resistance belt 4 to influence the monitoring of the amount of the grease 5 in the grease pump 6. Preferably, the contact 2 is arranged in an arc shape or is an elastic conductor, which is convenient for improving the contact effect, so that the arc contact 2 or the elastic conductor can be always kept in contact with the resistance band 4 and in an energized state, and the elastic conductor can be an elastic metal sheet, a mechanical combination of the spring 10 and the metal sheet, or the like. Preferably, the contact 2 is slidably connected to the resistive strip 4, so as to improve the contact effect and the monitoring accuracy.

In another embodiment, the resistive strip 4 is provided with a sliding groove, and the contact 2 is arranged in the sliding groove and moves along the sliding groove, so that the contact effect of the contact 2 and the resistive strip 4 is improved, and the contact 2 is prevented from being separated from the resistive strip 4 in the sliding process.

In the embodiment, the top plate 8 is provided with the through hole 11, one end of the conductive pin 1 penetrates through the through hole 11 and is detachably connected with the pressing plate 7, the through hole 11 is convenient to guide the conductive pin 1, and the conductive pin 1 can be prevented from being excessively stressed and being twisted or broken.

In the embodiment, the insulating mounting seat is arranged on the pressing plate 7, the internal thread is arranged on the mounting seat, the external thread matched with the mounting seat is arranged on the conductive pin 1, and the pressing plate 7 is in threaded connection with the conductive pin 1, so that the conductive pin 1 can be conveniently overhauled and replaced, and the use convenience is improved.

The utility model discloses the effectual monitoring of having solved 5 residuals of grease in the grease pump 6 combines with PLC can real-time supervision to can in time remind and supply grease 5 to grease pump 6, guarantee wind turbine generator system's normal operating, avoid wind turbine generator system to lack lubricating oil and mechanical damage appears, reduce the emergence of accident, improve wind turbine generator system's life.

The above description is of the preferred embodiment of the present invention and the technical principle applied thereto, and it will be apparent to those skilled in the art that any equivalent changes, simple substitutions and other obvious changes based on the technical solution of the present invention can be made without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides a wind turbine generator system grease pump oil level detection device, includes grease pump and conductive pin, its characterized in that: a pressing plate is arranged in the grease pump and clings to the surface of grease, the pressing plate is connected with a top plate of the grease pump through a spring, a resistance belt is arranged on the outer side of the grease pump, one end of a conductive needle is connected with the pressing plate, the other end of the conductive needle is in contact with the resistance belt, the pressing plate drives the conductive needle to move along with the movement of the position of the grease surface, the conductive needle and one end of the resistance belt are both connected into a PLC, the position of the pressing plate is changed through the change of the oil level of the grease, the conductive needle is driven to move along with the grease surface, and the resistance value is changed to obtain the oil level of the grease.

2. The oil level detection device for the grease pump of the wind turbine generator according to claim 1, characterized in that: the resistance belt is installed on the grease pump through the insulating base.

3. The oil level detection device for the grease pump of the wind turbine generator according to claim 1, characterized in that: the conductive needle is U-shaped, and a contact is arranged at one end of the conductive needle, which is contacted with the resistance belt.

4. The oil level detection device for the oil-fat pump of the wind turbine generator according to claim 3, characterized in that: the contact is arranged in an arc shape or is an elastic conductor.

5. The oil level detection device for the grease pump of the wind turbine generator according to claim 4, characterized in that: the contact is connected with the resistance belt in a sliding mode.

6. The oil level detection device for the grease pump of the wind turbine generator according to claim 5, characterized in that: the resistance band is provided with a sliding groove, and the contact is arranged in the sliding groove and moves along the sliding groove.

7. The oil level detection device for the grease pump of the wind turbine generator according to any one of claims 1 to 6, characterized in that: the top plate is provided with a through hole, and one end of the conductive pin penetrates through the through hole and is detachably connected with the pressing plate.

8. The oil level detection device for the grease pump of the wind turbine generator according to claim 7, characterized in that: the pressing plate is provided with an insulating mounting seat, the mounting seat is provided with an internal thread, the conductive needle is provided with an external thread matched with the mounting seat, and the pressing plate is in threaded connection with the conductive needle.