Bypass lubricating device for wind generating set

Abstract

The bypass lubricating device comprises a box body and a box cover hinged to the top of the box body, an operation panel integrating control elements such as a shock-proof digital display pressure switch and a mode switching knob is arranged on the front face of the box body, and the interior of the box body is divided into an upper installation space and a lower installation space through an installation plate with a supporting rod. An electric control circuit is contained in the upper portion, a detachable ventilation filter screen with dustproof filter cotton is arranged on the lower portion, an oil way assembly is arranged on the side face and comprises a gear conveying pump, a motor and a transition block for buffering vibration, power transmission is achieved through a plum coupling, a pressure measuring connector and a one-way valve are arranged in an oil way, and an outlet of the one-way valve is connected with a filter. The device is provided with a dual-power system, supports an external power supply and photovoltaic power supply, and maintains continuous operation through a storage battery. When a main lubricating system breaks down, the device has an automatic starting mode and a manual starting mode, lubricating oil is conveyed to all lubricating points, equipment abrasion is effectively reduced, and the reliability of the system is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of wind power generation equipment, specifically a bypass lubrication device for wind turbine generator sets. Background Technology

[0002] In wind turbine generators, the main lubrication system is responsible for providing continuous lubrication to critical components such as gearboxes and bearings to ensure their normal operation and extend their service life. However, because wind turbine generators are usually located in remote areas and operate in harsh environments, the main lubrication system may malfunction or require maintenance for various reasons. Existing wind turbine lubrication systems typically use a single main pump to deliver lubricant to lubrication points via a main lubrication pipeline. If the main pump fails, the pipeline becomes blocked, or the lubricant leaks, the system will completely fail, causing rapid wear of gearboxes or bearings due to lubrication interruption, and potentially leading to catastrophic shutdowns. In extreme low-temperature environments, increased lubricant viscosity can overload the main pump. In dusty or humid environments, lubricant is easily contaminated, accelerating component wear. Existing systems often focus on optimizing main pump efficiency or pipeline layout, but lack independent bypass lubrication paths. When the main system fails, shutdown and component replacement are necessary, severely impacting power generation continuity. Even systems with bypass lubrication paths, because these paths are not continuously operating, can experience power shortages and malfunctions in emergencies. Over-reliance on periodic manual inspections or simple threshold alarms often results in equipment damage by the time a fault is detected. Summary of the Invention

[0003] To address the technical problems existing in the prior art and achieve the above objectives, this utility model provides a bypass lubrication device for wind turbine generator sets, including a housing and an operation panel located on the front of the housing. A housing cover is provided on the top of the housing, and an oil inlet module and an oil outlet module are arranged side-by-side on the sides. Each oil inlet and outlet module is equipped with a separate on / off valve. An installation plate is provided inside the housing. The installation plate is a rectangular thin plate located in the middle of the housing with bent edges. Several screw holes are provided on the bent edges. The installation plate is fixed to the housing by bolts and screw holes. A support rod is provided at the bottom of the installation plate to stabilize the long side of the installation plate not fixed to the housing. The installation plate divides the housing into an upper installation space and a lower installation space. The space houses the motor driver and the electrical control circuitry of the control panel. Several ventilation filters are installed on the side of the lower installation space for dust prevention and heat dissipation. A battery 9 is installed inside. There is a partial connection between the upper and lower installation spaces, and an oil circuit assembly is installed in the connection area. The oil circuit assembly includes a gear conveying pump connected to the oil inlet module pipeline and a motor located below the gear conveying pump. A perforated coupling and a motor bracket are installed between the motor and the gear conveying pump. The motor bracket fixes the motor, gear conveying pump and housing. The outlet of the gear conveying pump is connected to a 90-degree bend. A transition block and a one-way valve are installed at the other end of the bend. A pressure test connector is installed on the upper part of the transition block. The one-way valve is connected to a filter outside the housing. The filter is connected to the oil outlet module.

[0004] Preferably, the transition block has a rectangular cross-section and is provided with right-angle bends. It has an internal oil passage and is connected to the bend of the gear delivery pump outlet through an internal thread. The pressure testing connector is located on the upper part of the bend area of ​​the transition block.

[0005] Preferably, a ventilation filter is installed on each of the lower sides of the box, and two ventilation filters are installed side by side on the lower back of the box. The ventilation filters adopt a detachable metal filter structure and have a dustproof filter cotton layer inside.

[0006] Preferably, the side of the enclosure is provided with an external power socket and a photovoltaic panel power supply socket arranged side by side. The photovoltaic panel power supply socket is connected to the photovoltaic charging panel through a waterproof cable. The battery and the photovoltaic charging panel are connected to the operation panel through the charging panel controller.

[0007] Preferably, a filter bracket is provided on the upper part of the filter and the oil inlet module. The filter bracket is a 90-degree bent steel plate, with one side fixed to the side of the housing and the other side able to fix the oil inlet pipeline between the filter and the oil inlet module and the gear delivery pump.

[0008] Preferably, the box body and the box lid are hinged at the front, and the box lid is fixed to the box body at the back by a buckle.

[0009] This utility model has the following features and beneficial effects: It provides power to the bypass lubrication device via a storage battery 9 and a photovoltaic charging panel. When the bypass lubrication device is started, the gear delivery pump precisely delivers lubricating oil to each lubrication point, ensuring uniform distribution of lubricating grease. A fine filter effectively removes impurities and contaminants from the lubricating oil, maintaining its cleanliness. A modular design facilitates installation and maintenance. The compact internal structure and pipeline connection design effectively reduce vibration damage to the device's interface tightness, preventing lubricating oil leakage due to vibration. The housing is equipped with a quick-opening cover and a ventilation filter, adapting to the operating requirements of wind turbine generators in different environments and facilitating fault diagnosis. In summary, this utility model can quickly start when the main lubrication system malfunctions or requires maintenance, providing continuous lubrication support to the gearbox, bearings, etc., ensuring normal operation of the equipment even when the main lubrication system is unavailable. This effectively reduces downtime caused by lubrication system failures, improving equipment availability and operating efficiency. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0012] Figure 3 This is a schematic diagram of the internal structure of this utility model from another angle;

[0013] Figure 4 This is a top view of the internal structure of this utility model;

[0014] Figure 5 This is a right view of the internal structure of this utility model;

[0015] Figure 6 This is the front view of this utility model;

[0016] Figure 7 This is a rear view of the present invention;

[0017] Figure 8 This is the left view of this utility model;

[0018] Figure 9 This is a schematic diagram of the oil circuit component structure of this utility model;

[0019] Figure 10 This is a schematic diagram of the installation structure of the mounting plate and support rod of this utility model;

[0020] Figure 11 This is a schematic diagram of the working principle of this utility model;

[0021] In the diagram: 1-Box body, 101-Box cover, 102-External power socket, 103-Photovoltaic panel power supply socket, 2-Operation panel, 201-Charging board controller, 202-Photovoltaic charging board, 3-Mounting plate, 301-Support rod, 4-Oil inlet module, 5-Oil outlet module, 6-Oil circuit assembly, 601-Gear transfer pump, 602-Motor, 603-Motor driver, 604-Crown coupling, 605-Motor bracket, 606-Transition block, 607-Pressure test connector, 608-One-way valve, 7-Filter, 701-Filter bracket, 8-Ventilation filter, 9-Battery. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1 and Figures 6 to 9 As shown, a bypass lubrication device for a wind turbine generator set includes a housing 1 and an operation panel 2 located on the front of the housing 1. A cover 101 is provided on the top of the housing 1. The housing 1 and the cover 101 are hinged together on the front and fastened with buckles on the back, which can quickly fix the cover to the housing 1, ensuring a stable connection between the cover and the housing 1 and facilitating user operation. An oil inlet module 4 and an oil outlet module 5 are arranged side by side on the side of the housing 1. Both the oil inlet module 4 and the oil outlet module 5 are equipped with separate switching valves. On the left side of the operation panel 2, there are a shock-resistant digital display pressure switch, a power switch, a mode switching knob, an oil pump start button, an oil pump stop button, and a charging board controller 201. The shock-resistant digital display pressure switch can detect the pump outlet pressure. The power switch, mode switching knob, oil pump start button, and oil pump stop button are arranged in a matrix in the middle of the operation panel 2. The charging board controller 201 is located on the right side of the operation panel 2.

[0024] like Figure 2 , Figure 10 As shown, an installation plate 3 is installed inside the housing 1. The installation plate 3 is a rectangular thin plate located in the middle of the housing 1 with bent edges. Several screw holes are provided on the bent edges. The installation plate 3 is fixed to the housing 1 by bolts and screw holes. A support rod 301 is installed at the bottom of the installation plate 3. The two ends of the support rod 301 are fixed to the two sides of the housing 1 and cross the inside of the housing 1. The long side of the installation plate 3 that is not fixed to the housing 1 rests on the support rod 301, which can make it more stable during use and avoid deformation caused by uneven stress.

[0025] like Figures 1 to 5As shown, the mounting plate 3 divides the interior of the housing 1 into an upper mounting space and a lower mounting space. The upper mounting space houses the electrical control circuitry of the motor driver 603 and the control panel 2. A ventilation filter 8 is installed on each side of the housing 1 in the lower mounting space. Two ventilation filters 8 are arranged side by side on the lower back of the housing 1. The ventilation filters 8 adopt a detachable metal filter structure with a dustproof filter cotton layer inside and a battery 9 fixedly installed inside. The ventilation filters 8 can dissipate heat when the equipment is working and can effectively prevent dust when the external environment is harsh. The upper mounting space and the lower mounting space are connected by a support rod 301, the mounting plate 3 and the side wall of the housing 1, and a section of the through area is enclosed. An oil circuit assembly 6 is installed inside the through area.

[0026] like Figure 1 Figure 4 and Figure 9 As shown, the oil circuit assembly 6 includes a gear pump 601 connected to the oil inlet module 4 pipeline and a motor 602 located below the gear pump 601. The motor 602 drives the gear pump 601 through a perforated coupling 604. Motor brackets 605 are provided on both sides of the mating point between the motor 602 and the gear pump 601. The motor brackets 605 fix the motor 602, the gear pump 601, and the housing 1. The outlet of the gear pump 601 is connected to a 90-degree bend. A transition block 606 with a rectangular cross-section and a right-angle bend and a one-way valve 608 are provided at the other end of the bend. The transition block 606 can absorb and buffer vibration, reduce the impact of pump vibration on pipelines and equipment, and prevent pipeline vibration from affecting the pipeline. In case of leakage and equipment damage, a pressure testing connector 607 is installed on the upper part of the transition block 606 to detect the pressure inside the oil circuit during operation. A one-way valve 608 is connected to the filter 7 outside the housing 1. The filter 7 can effectively remove impurities such as particulate matter, metal shavings, and dust from the lubricating oil, thereby reducing wear on the fan equipment and extending the service life of key components such as gears and bearings. The oil outlet of the filter 7 is connected to the oil outlet module 5. A filter bracket 701 is installed on the upper part of the filter 7 and the oil inlet module 4. The filter bracket 701 is a 90-degree bent steel plate, with one side fixed to the side of the housing 1 and the other side able to fix the oil inlet pipeline between the filter 7, the oil inlet module 4 and the gear conveying pump 601.

[0027] like Figure 8 As shown, the side of the housing 1 is provided with an external power socket 102 and a photovoltaic power supply socket 103 arranged side by side. The photovoltaic power supply socket 103 is connected to the photovoltaic charging panel through a waterproof cable. The battery 9 and the photovoltaic charging panel are connected to the operation panel 2 through the charging panel controller 201.

[0028] like Figure 10As shown, during use, the bypass lubrication device can be driven by an external power source and battery 9. After the photovoltaic charging panel discharges, it can continuously replenish the battery 9 with power. The battery 9 maintains the operation of the charging panel controller 201, motor driver 603, and motor 602. When the main lubrication system of the wind turbine generator stops working due to a fault or maintenance, the detection equipment of the main lubrication system will automatically alarm and prompt the operator to check and maintain it. At the same time, the bypass lubrication device will be automatically or manually started by the operator. At this time, the motor driver 603 drives the motor 602 to start running. The motor 602 drives the gear pump 601 to start running. The lubricating oil enters the gear pump 601 through the oil inlet. The gear pump 601 pushes the lubricating oil into the filter 7. The pressure test connector 607 on the transition block 606 monitors the pressure in the oil passage in real time and transmits the data to the shock-resistant digital display pressure switch on the control panel. After that, the lubricating oil passes through the filter 7. Under the continuous push of the gear pump 601, the filtered lubricating oil is evenly distributed from the oil outlet module 5 to each lubrication point in a progressive manner.

Claims

1. A bypass lubrication device for a wind turbine generator set, comprising a housing (1) and an operation panel (2) disposed on the front of the housing (1), characterized in that: The top of the housing (1) is provided with a cover (101), and the sides are provided with an oil inlet module (4) and an oil outlet module (5). The oil inlet module (4) and the oil outlet module (5) are each provided with a separate switch valve. The housing (1) is provided with an installation plate (3). The installation plate (3) is a rectangular thin plate located in the middle of the housing (1) with a bent edge. Several screw holes are provided on the bent edge. The installation plate (3) is fixed to the housing (1) by bolts and screw holes. The bottom of the installation plate (3) is provided with a support rod (301) to stabilize the long side of the installation plate (3) that is not fixed to the housing (1). The installation plate (3) divides the housing (1) into an upper installation space and a lower installation space. The upper installation space houses the electrical control circuit of the motor driver (603) and the operation panel (2). Several ventilation filters (8) are provided on the side of the housing (1) of the lower installation space to prevent dust and dissipate heat. An internal battery (9) is installed. The upper and lower installation spaces have a partially connected area. An oil circuit assembly (6) is installed in the connected area. The oil circuit assembly (6) includes a gear pump (601) connected to the oil inlet module (4) pipeline and a motor (602) installed below the gear pump (601). A plum blossom coupling (604) and a motor bracket (605) are installed between the motor (602) and the gear pump (601). The motor bracket (605) fixes the motor (602), the gear pump (601) and the housing (1) in place. The outlet of the gear pump (601) is connected to a 90-degree bend. A transition block (606) and a one-way valve (608) are installed at the other end of the bend. A pressure test connector (607) is installed on the upper part of the transition block (606). The one-way valve (608) is connected to a filter (7) outside the housing (1). The filter (7) is connected to the oil outlet module (5).

2. The bypass lubrication device for a wind turbine generator set as described in claim 1, characterized in that: The transition block (606) has a rectangular cross section and a right-angle bend. It has an internal oil passage and is connected to the bend at the outlet of the gear pump (601) via an internal thread. The pressure testing connector (607) is located on the upper part of the bend area of ​​the transition block (606).

3. A bypass lubrication device for a wind turbine generator set as described in claim 2, characterized in that: A ventilation filter (8) is provided on each of the lower sides of the box (1), and two ventilation filters (8) are arranged side by side on the lower back of the box (1). The ventilation filters (8) adopt a detachable metal filter structure and have a dustproof filter cotton layer inside.

4. A bypass lubrication device for a wind turbine generator set as described in claim 3, characterized in that: The side of the enclosure (1) is provided with an external power socket (102) and a photovoltaic power supply socket (103) arranged side by side. The photovoltaic power supply socket (103) is connected to the photovoltaic charging panel through a waterproof cable. The battery (9) and the photovoltaic charging panel are connected to the operation panel (2) through the charging panel controller (201).

5. A bypass lubrication device for a wind turbine generator set as described in claim 4, characterized in that: The filter (7) and the oil inlet module (4) are provided with a filter bracket (701). The filter bracket (701) is a 90-degree bent steel plate. One side is fixed to the side of the box (1), and the other side can fix the oil inlet pipeline between the filter (7) and the oil inlet module (4) and the gear conveying pump (601).

6. A bypass lubrication device for a wind turbine generator set as described in any one of claims 1-5, characterized in that: The box body (1) and the box cover (101) are hinged together on the front, and the box cover (101) is fixed to the box body (1) on the back by a buckle.

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