Hydraulic lubrication integrated system and wind generating set

Abstract

The utility model relates to a hydraulic lubrication integrated system and a wind generating set. Comprising a hydraulic push rod and a rope winding mechanism, and the hydraulic push rod comprises a hydraulic cylinder body and a telescopic rod and is driven by a hydraulic power source; the rope winding mechanism is used for converting linear motion into rotary motion; the rope winding mechanism and the hydraulic push rod are fixed to the top or the bottom of the lubricating grease box in the direction perpendicular to the axis of the lubricating grease box. Comprising a first electric control switching valve, the first electric control switching valve comprises three oil ports, the three oil ports are used for being communicated with a hydraulic pump, a hydraulic oil tank and a hydraulic push rod respectively, and the first electric control switching valve is used for controlling action of a telescopic rod; the hydraulic push rod and the rope winding mechanism are used for driving the oil pressing impeller to rotate so as to extrude lubricating grease towards the lubricating grease outlet to the grease suction opening of the grease injector, and on the premise that it is guaranteed that cost is not too high, hydraulic power is used for achieving the purpose of preventing a plunger from being evacuated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of hydraulic lubrication integrated system and wind turbine generator unit. BACKGROUND

[0002] Wind turbine generator needs to use hydraulic system for main bearing yaw brake, and needs to lubricate system for friction pair lubrication, two sets of systems are independently operated, not only large volume, high cost, but also serious energy waste.

[0003] There is also a hydraulic lubrication integrated system on the market, such as the patent with the authorization announcement number CN 220204219 U, the lubricating system is provided with a spring piston structure grease tank, a spring piston structure lubricator is arranged at the lower part of the grease tank, and the lubricator is responsible for supplying lubricating grease to the distributor. The system does not have oil pressure impeller, stirring rod and motor mechanism, and when working, the hydraulic power of the hydraulic system is used as the hydraulic power source of the lubricating system. The hydraulic oil enters one end of the disc-shaped piston of the lubricator from the hydraulic oil tank, pushes the piston to move to the other end to extrude the spring, and extrudes the lubricating grease in the spring cavity into the distributor; when not working, the hydraulic power is unloaded, and the piston oil disc of the lubricating grease tank pushes the lubricating grease into the lubricator through the one-way valve under the action of the spring, to prepare for the next time of lubricating grease to the distributor. The technical scheme of the patent has the following problems in actual use:

[0004] Because the lubricating grease tank in the wind power field is very large, the high-viscosity lubricating grease is easy to adhere to the inner wall of the lubricating grease tank during use, and the flow performance of the lubricating grease under low temperature state is worse. It is difficult to make the lubricating grease flow downward only by relying on the spring to push the piston, and as the lubricating grease level drops, the spring pushing force decreases, making it more difficult to push the lubricating grease into the lubricator, which may cause the lubricator to be empty. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model aims to provide a kind of hydraulic lubrication integrated system, to ensure that lubricating grease can flow downward to the suction port of lubricator, to prevent the lubricator from being empty;The utility model also aims to provide a wind turbine generator unit configured with the above-mentioned hydraulic lubrication integrated system.

[0006] The technical scheme of the hydraulic lubrication integrated system of the utility model is as follows:

[0007] A kind of hydraulic lubrication integrated system, comprising:

[0008] A lubricating grease tank for storing lubricating grease, comprising an in-tank piston and an in-tank spring;

[0009] A hydraulic push rod comprising a hydraulic cylinder body and a telescopic rod, driven by a hydraulic power source;

[0010] A rope winding mechanism comprising a winding drum, a pull rope and a torsion spring;

[0011] The grease box further comprises an oil pressing impeller and a rotating shaft, the rotating shaft is arranged along the axis of the grease box and rotatably assembled at the top and bottom of the grease box, the oil pressing impeller is arranged at the bottom of the grease box and mounted on the rotating shaft to rotate with the rotating shaft, the winding rope mechanism and the hydraulic push rod are fixed at the top or bottom of the grease box along the direction perpendicular to the axis of the grease box, one end of the pulling rope is connected to the extending end of the telescopic rod and the other end is wound on the winding drum, the winding drum is mounted on the rotating shaft to drive the rotating shaft to rotate, and the torsion spring is sleeved on the rotating shaft and the first torsion arm and the second torsion arm of the torsion spring are respectively mounted on the winding drum and the grease box.

[0012] The oil pressing impeller is driven to rotate by the hydraulic push rod and the winding rope mechanism to press the grease towards the outlet of the grease box.

[0013] The beneficial effects of the scheme are as follows: compared with the prior art, the hydraulic push rod and the winding rope mechanism are arranged on the grease box, the oil pressing impeller is driven to rotate by the hydraulic push rod and the winding rope mechanism to press the grease towards the outlet of the grease box, and the cost is not excessively high, and the hydraulic power is used to prevent the grease injector from being emptied.

[0014] Further, the first electric control switching valve, the hydraulic pump and the hydraulic oil tank are included, the first electric control switching valve includes three oil ports, the three oil ports are respectively used for communicating with the hydraulic pump, the hydraulic oil tank and the hydraulic push rod, and the first electric control switching valve is used for controlling the action of the telescopic rod. The valve position switching time length of the first electric control switching valve is controllable, the hydraulic push rod pulls the pulling rope to drive the oil pressing impeller to rotate, when the pulling rope reaches the maximum stroke, the first electric control switching valve switches the valve position to unload, the reverse reset force is provided by the torsion spring to drive the oil pressing impeller to rotate reversely and drive the hydraulic push rod to reset, and the rotation of the oil pressing impeller is driven to press the grease towards the grease outlet.

[0015] Further, the grease injector and the second electric control switching valve are included, the grease injector has a hydraulic oil inlet, the second electric control switching valve includes three oil ports, the three oil ports are respectively used for communicating with the hydraulic pump, the hydraulic oil tank and the hydraulic oil inlet, and the grease injector is connected with the hydraulic pump or the hydraulic oil tank when the valve position is switched. The second and first electric control switching valves can work cooperatively, when the second electric control switching valve is switched to the hydraulic pump and the grease injector are communicated, the first electric control switching valve is switched to the hydraulic push rod and the hydraulic oil tank are communicated, when the grease injector supplies grease to the distributor, the hydraulic power source drives the hydraulic push rod to act to press the grease into the grease injector, the action of the plunger is disturbed, the controllability of the lubricating grease displacement is improved, and the waste of the hydraulic power is reduced.

[0016] Further, the oil inlet of the hydraulic push rod is arranged on one side of the rod cavity.

[0017] Further, the hydraulic push rod has one or at least two telescopic rods.

[0018] Furthermore, a relief valve is provided between the first electrically controlled switching valve and the hydraulic oil tank. When the pressure in the hydraulic oil line reaches the set value, the hydraulic oil can flow back to the hydraulic oil tank through the relief valve to prevent overpressure.

[0019] Furthermore, the rotating shaft has an outer part and an inner part, and the outer part and the inner part are connected by the same long shaft or the two parts are coaxially driven.

[0020] The technical solution of this utility model for a wind turbine generator set is as follows:

[0021] The wind turbine generator set includes a hydraulic lubrication integrated system, which includes:

[0022] A grease tank is used to store grease, including an internal piston and an internal spring.

[0023] A hydraulic push rod, comprising a hydraulic cylinder and a telescopic rod, is driven by a hydraulic power source;

[0024] The rope winding mechanism includes a drum, a rope, and a torsion spring;

[0025] The grease tank also includes an oil pressure impeller and a rotating shaft. The rotating shaft is arranged along the axis of the grease tank, and its two ends are rotatably mounted on the top and bottom of the grease tank, respectively. The oil pressure impeller is located at the bottom of the grease tank and is mounted on the rotating shaft to rotate with the rotating shaft. The rope winding mechanism and the hydraulic push rod are both fixed to the top or bottom of the grease tank in a direction perpendicular to the axis of the grease tank. One end of the rope is connected to the extended end of the telescopic rod, and the other end is wound around the drum. The drum is mounted on the rotating shaft to drive the rotating shaft to rotate. The torsion spring is sleeved on the rotating shaft, and the first torsion arm and the second torsion arm of the torsion spring are respectively mounted on the drum and the grease tank.

[0026] The hydraulic push rod and rope winding mechanism drive the oil pressure impeller to rotate, squeezing the grease towards the outlet of the grease tank.

[0027] The beneficial effects of this solution are as follows: Compared with the prior art, this application sets a hydraulic push rod and a rope winding mechanism on the grease tank, and uses the hydraulic push rod and rope winding mechanism to drive the oil pressure impeller to rotate to squeeze the grease towards the outlet of the grease tank. Under the premise of ensuring that the cost is not too high, hydraulic power is used to prevent the grease injector from being evacuated.

[0028] Furthermore, the system includes a first electrically controlled switching valve, a hydraulic pump, and a hydraulic oil tank. The first electrically controlled switching valve has three oil ports, which are respectively used to connect to the hydraulic pump, the hydraulic oil tank, and the hydraulic push rod. The first electrically controlled switching valve is used to control the movement of the telescopic rod. The valve position switching time of the first electrically controlled switching valve is controllable. The hydraulic push rod pulls the pull rope to drive the pressure impeller to rotate. When the pull rope reaches its maximum stroke, the first electrically controlled switching valve switches its valve position to unload. A torsion spring provides a reverse reset force to drive the pressure impeller to rotate in the opposite direction. At the same time, the pull rope is rewound onto the drum, and the hydraulic push rod is reset... This cycle repeats continuously, driving the pressure impeller to rotate and squeeze grease toward the grease outlet.

[0029] Furthermore, the system includes a grease injector and a second electrically controlled switching valve. The grease injector has a hydraulic inlet, and the second electrically controlled switching valve has three ports, which are respectively used to connect to a hydraulic pump, a hydraulic tank, and the hydraulic inlet. When switching valve positions, the grease injector is connected to either the hydraulic pump or the hydraulic tank. The second and first electrically controlled switching valves can work together. When the second electrically controlled switching valve is switched to connect the hydraulic pump to the grease injector, the first electrically controlled switching valve is switched to connect the hydraulic push rod to the hydraulic tank. This prevents the hydraulic power source from driving the hydraulic push rod to force the grease into the grease injector when the grease injector supplies grease to the distributor, thus interfering with the plunger action, improving the controllability of grease discharge, and reducing hydraulic power waste.

[0030] Furthermore, the oil inlet of the hydraulic push rod is located on the rod-side.

[0031] Furthermore, the hydraulic push rod has one or at least two stages of telescopic rods.

[0032] Furthermore, a relief valve is provided between the first electrically controlled switching valve and the hydraulic oil tank. When the pressure in the hydraulic oil line reaches the set value, the hydraulic oil can flow back to the hydraulic oil tank through the relief valve to prevent overpressure.

[0033] Furthermore, the rotating shaft has an outer part and an inner part, and the outer part and the inner part are connected by the same long shaft or the two parts are coaxially driven. Attached Figure Description

[0034] Figure 1 This is a schematic diagram illustrating the principle of Embodiment 1 of the hydraulic lubrication integrated system of this utility model;

[0035] Figure 2 for Figure 1 A cross-sectional schematic diagram of one embodiment of region A in the middle;

[0036] Figure 3 for Figure 2 An enlarged schematic diagram of one embodiment of region B in the middle;

[0037] Figure 4 This is a cross-sectional view of the internal structure of the grease injector;

[0038] Figure 5 This is a schematic diagram of the spiral oil pressure plate in Embodiment 2 of the hydraulic lubrication integrated system of this utility model;

[0039] In the diagram: 1-Hydraulic oil tank, 2-Hydraulic pump, 3-Motor, 4-Manual pump, 5-Filter, 6-Air filter, 7-Relief valve, 8-Stop valve, 9-Pressure gauge, 10-Accumulator, 11-Pressure sensor, 12-Pressure reducing valve, 13-Check valve, 131-Small spring, 132-Valve core, 133-Passage port, 14-Third electrically controlled switching valve, 15-Second electrically controlled switching valve, 16-Hydraulic actuator, 17-Grease injector, 171-Valve body, 1711-Hydraulic inlet, 1712-Grease inlet, 1713-Grease outlet, 1714-Large diameter chamber, 1715-Small diameter chamber, 172-Plunger, 1721-Large diameter section, 1722-Small diameter section, 1723-Sealing groove, 173-Return spring, 174-Seal 175-Threaded pipe fitting, 176-Threaded plug, 18-Distributor, 19-Grease tank, 191-Inner spring, 192-Inner piston, 193-Oil impeller, 1931-Inclined oil pressure plate, 1932-Spiral oil pressure plate, 1933-Spiral blade, 1934-Grease baffle, 1935-Extrusion surface, 1936-Mounting sleeve, 1937-Threaded hole, 1938-Protrusion, 194-Grease outlet, 195-Shaft, 20-Pressure switch, 21-Hydraulic push rod, 211-Hydraulic cylinder body, 212-Rodless chamber, 213-Hydraulic port, 214-Telescopic rod, 215-Rod chamber, 22-First electric control switching valve, 23-Rope winding mechanism, 231-Pull rope, 232-Drum, 233-Torsion spring. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0042] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0043] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0044] Embodiment 1 of the hydraulic lubrication integrated system of this utility model: A hydraulic lubrication integrated system is part of a three-unit wind turbine generator, installed inside the wind turbine, such as... Figure 1 As shown, a hydraulic lubrication integrated system mainly includes a hydraulic oil tank 1, an air filter 6, a hydraulic pump 2, a motor 3, a check valve 13, a manual pump 4, a pressure gauge 9, a pressure testing connector, an accumulator 10, a filter 5, an overflow valve 7, a pressure sensor 11, a shut-off valve 8, a third electrically controlled switching valve 14, a second electrically controlled switching valve 15, a first electrically controlled switching valve 22, a pressure reducing valve 12, a pressure switch 20, a check valve 13, a grease injector 17, a distributor 18, a grease tank 19, a hydraulic push rod 21, a rope winding mechanism 23, etc. The interface with this system includes a hydraulic actuator 16 and lubrication pipelines and connectors. The hydraulic module provides power to the hydraulic actuator 16; in this embodiment, it is a high-speed shaft brake.

[0045] Among them, such as Figure 1 As shown, hydraulic pump 2 is a gear pump driven by motor 3 and controlled by the system. It is used to draw hydraulic oil from the hydraulic oil tank. Hydraulic oil tank 1 is used to store hydraulic oil. Grease tank 19 is used to store grease. It is cylindrical in shape and has an internal spring 191 and an internal piston 192. The internal spring 191 compresses the internal piston 192, which squeezes the grease towards the grease outlet 194 and into the grease injector 17.

[0046] like Figure 2As shown, the hydraulic push rod 21 includes a hydraulic cylinder 211, a hydraulic port 213, and a telescopic rod 214; the rope winding mechanism 23 includes a drum 232, a pull rope 231, and a torsion spring 233; and the grease tank 19 also includes an oil pressure impeller 193 and a rotating shaft 195. A rotating shaft 195 is arranged along the axis of the grease tank 19, with its two ends rotatably mounted on the top and bottom of the grease tank 19, respectively. An oil pressure impeller 193 is located at the bottom of the grease tank 19 and is mounted on the rotating shaft 195 to rotate synchronously with it. The hydraulic push rod 21 and the rope winding mechanism 23 are fixed to the top of the grease tank 19 along a direction perpendicular to its axis. One end of the pull rope 231 is connected to the extended end of the telescopic rod, and the other end is wound around the drum 232. The first and second torsion arms of the torsion spring 233 are respectively mounted on the drum 232 and the grease tank 19. The outer and inner parts of the rotating shaft 195 share the same long shaft. The torsion spring 233 is sleeved on the rotating shaft 195, and the drum 232 is mounted on the rotating shaft 195 to drive its rotation. In other embodiments, unlike the above embodiments, the outer and inner parts of the rotating shaft 195 are coaxially connected.

[0047] like Figure 1 As shown, the first electrically controlled switching valve 22 is a solenoid three-way valve, which includes three oil ports, which are respectively connected to the hydraulic pump 2, the hydraulic oil tank 1 and the hydraulic oil port 213. When the grease tank 19 level is lower than the set value, the first electrically controlled switching valve 22 switches to the position where the hydraulic pump 2 and the hydraulic push rod 21 are connected. Hydraulic oil enters the rod chamber 215, pushing the telescopic rod 214 to move linearly. The telescopic rod 214 pulls the pull rope 231 to rotate the pressure impeller. The valve position switching time of the first electrically controlled switching valve 22 is controllable. The hydraulic push rod 21 pulls the pull rope 231 to drive the pressure impeller 193 to rotate. When the pull rope 231 reaches its maximum stroke, the first electrically controlled switching valve 22 switches to the position where the hydraulic push rod 21 is connected to the hydraulic oil tank 1 to unload. The torsion spring 233 provides a reverse reset force to drive the pressure impeller 193 to rotate in the opposite direction. At the same time, the pull rope 231 is rewound onto the drum 232, and the telescopic rod 214 resets. This cycle repeats continuously, driving the pressure impeller 193 to rotate and squeeze the grease towards the grease outlet to the grease suction port of the grease injector 17. In this embodiment, the pressure impeller 193 is an inclined pressure plate 1931 with an inclined pressure surface. When the pressure surface rotates towards the grease, it can apply a downward driving force to the grease, causing the grease to move towards the suction port of the grease injector 17. The hydraulic push rod 21 is a single-stage telescopic rod 214. In other embodiments, the hydraulic push rod 21 can be at least a two-stage telescopic rod 214.

[0048] An overflow valve 7 is installed between the first electrically controlled switching valve 22 and the hydraulic oil tank 1. When the pressure in the hydraulic oil pipeline reaches the set value, the pressure can be released through the overflow valve 7 to prevent overpressure.

[0049] like Figure 4As shown, in this embodiment, the one-way valve 13 of the grease injector 17 shares a valve body 171 with the grease injector 17. The valve body 171 has a valve cavity, and a return spring 173 is provided within the valve cavity. The valve cavity has a hydraulic inlet 1711, a grease inlet 1712, and a grease outlet 1713. A plunger 172 is slidably sealed within the valve cavity. The plunger 172 includes a large-diameter section 1721 and a small-diameter section 1722. The valve cavity includes a large-diameter cavity 1714 and a small-diameter cavity 1715 corresponding to the large-diameter section 1721 and the small-diameter section 1722. The return spring 173 is sleeved on the small-diameter cavity. On the large-diameter section 1722, one end of the return spring 173 abuts against the large-diameter section 1721, and the other end abuts against the valve body 171 to provide elastic return force to the plunger 172. The hydraulic inlet 1711 is located at the outer end of the large-diameter cavity 1714, the grease inlet 1712 is located at the end of the small-diameter cavity 1715 near the return spring 173, and the grease outlet 1713 is located at the end of the small-diameter cavity 1715 away from the return spring 173. When the hydraulic oil pushes the plunger 172, it squeezes the grease in the small-diameter cavity 1715 towards the grease outlet 1713 and the grease inlet 1712. When the front end of the small-diameter section 1722 blocks the grease inlet 1712, the grease only flows out from the grease outlet 1713. The grease outlet 1713 is connected to a one-way outward-directing check valve 13. The one-way valve 13 at the grease outlet 1713 prevents grease from flowing back into the valve body 171 when the plunger 172 moves away from the grease outlet 1713, ensuring that the grease in the grease tank 19 is smoothly replenished into the valve cavity. This plunger structure can achieve better sealing when subjected to hydraulic oil pressure. In other embodiments, the grease injector 17 and the one-way valve 13 can also be of a separate structure.

[0050] like Figure 1 As shown, the second electrically controlled switching valve 15 is a solenoid three-way valve, including three oil ports, which are respectively connected to the hydraulic pump 2, the hydraulic oil tank 1, and the hydraulic inlet 1711. During grease supply, the valve switches to connect the hydraulic pump 2 to the grease injector 17, providing power for the plunger action of the grease injector 17. When grease is not supplied, the valve switches to connect the grease injector 17 to the hydraulic oil tank 1 for unloading, and the grease tank squeezes grease into the grease injector cavity to prepare for the next grease supply. A one-way valve 13 is provided between the second electrically controlled switching valve 15 and the hydraulic oil tank 1, which leads towards the oil tank. The one-way valve 13 is mainly set to prevent hydraulic oil that should flow to the hydraulic oil tank 1 from entering the hydraulic inlet 1711 through the second electrically controlled switching valve 15 and pushing the plunger 172 to move when the hydraulic actuator 16 is unloaded after operation, thus avoiding the plunger 172 from working during non-working hours and improving the controllability of grease discharge.

[0051] The first electrically controlled switching valve 22 and the second electrically controlled switching valve 15 can work together. When the second electrically controlled switching valve 15 switches to the connection between the hydraulic pump 2 and the grease injector 17, the first electrically controlled switching valve 22 switches to the connection between the hydraulic push rod 21 and the hydraulic oil tank 1. This prevents the hydraulic power source from driving the hydraulic push rod 21 to rotate and squeeze the grease into the grease injector 17 when the grease injector 17 supplies grease to the distributor 18, thus interfering with the plunger action, improving the controllability of grease discharge, and reducing hydraulic power waste.

[0052] The third electrically controlled switching valve 14 is a solenoid three-way valve, including three oil ports. The three oil ports are respectively connected to the hydraulic pump 2, the hydraulic oil tank 1, and the hydraulic actuator 16. When switching the valve position, the hydraulic actuator 16 is connected to the hydraulic pump 2 or the hydraulic oil tank 1. That is, when hydraulic braking is applied, the valve switches to connect the hydraulic pump 2 to the hydraulic actuator 16 to provide power for the action of the hydraulic actuator 16. When braking is not applied, the valve switches to connect the hydraulic actuator 16 to the hydraulic oil tank 1 to unload.

[0053] Example 2 of the hydraulic lubrication integrated system of this utility model: as follows Figure 5 As shown, the difference from Embodiment 1 is that the oil pressure impeller 193 is a spiral oil pressure plate 1932, located between the grease injector 17 and the bottom of the grease tank 19. It includes a continuous and complete spiral blade 1933 and a continuous and complete grease baffle 1934 surrounding the spiral blade 1933. When the spiral blade 1933 rotates, its lower surface forms a pressing surface 1935 that continuously squeezes the grease downward. The spiral oil pressure plate 1932 is provided with a mounting sleeve 1936, which is rotatably mounted on the rotating shaft 195. The upper part of the spiral oil pressure plate 1932 is provided with a protrusion 1938, and the protrusion 1938 is provided with a threaded hole for installing a stirring rod so that the grease can be separated from the inner wall of the grease tank 19 when it rotates with the spiral oil pressure plate 1932 so that the grease can flow downward. In this embodiment, the spiral pressure plate 1932 continuously squeezes and delivers grease toward the grease suction port, replenishing the grease that has been drawn out in a timely manner. This has the advantage of preventing the grease injector 17 from running dry, ensuring that the system can operate continuously and stably.

[0054] Specific embodiments of the wind turbine generator set of this utility model: The wind turbine generator set includes a hydraulic lubrication integrated system as described in the above embodiments and other components. The structure of the other components is prior art and will not be described in detail.

[0055] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A hydraulic lubrication integrated system, comprising: A grease tank is used to store grease, including an internal piston and an internal spring. Its characteristic is that it further includes: A hydraulic push rod, comprising a hydraulic cylinder and a telescopic rod, is driven by a hydraulic power source; The rope winding mechanism includes a drum, a rope, and a torsion spring; The grease tank also includes an oil pressure impeller and a rotating shaft. The rotating shaft is arranged along the axis of the grease tank, and its two ends are rotatably mounted on the top and bottom of the grease tank, respectively. The oil pressure impeller is located at the bottom of the grease tank and is mounted on the rotating shaft to rotate with the rotating shaft. The rope winding mechanism and the hydraulic push rod are both fixed to the top or bottom of the grease tank in a direction perpendicular to the axis of the grease tank. One end of the rope is connected to the extended end of the telescopic rod, and the other end is wound around the drum. The drum is mounted on the rotating shaft to drive the rotating shaft to rotate. The torsion spring is sleeved on the rotating shaft, and the first torsion arm and the second torsion arm of the torsion spring are respectively mounted on the drum and the grease tank. The hydraulic push rod and rope winding mechanism drive the oil pressure impeller to rotate, squeezing the grease towards the outlet of the grease tank.

2. The hydraulic lubrication integrated system according to claim 1, characterized in that, It includes a first electrically controlled switching valve, a hydraulic oil tank, and a hydraulic pump. The first electrically controlled switching valve has three oil ports, which are respectively used to connect to the hydraulic pump, the hydraulic oil tank, and the hydraulic push rod. The first electrically controlled switching valve is used to control the movement of the telescopic rod.

3. The hydraulic lubrication integrated system according to claim 2, characterized in that, It includes a grease injector and a second electrically controlled switching valve. The grease injector has a hydraulic inlet, and the second electrically controlled switching valve has three ports, which are respectively used to connect to a hydraulic pump, a hydraulic tank, and a hydraulic inlet. When switching the valve position, the grease injector is connected to the hydraulic pump or the hydraulic tank.

4. The hydraulic lubrication integrated system according to claim 1, characterized in that, The oil inlet of the hydraulic push rod is located on the rod chamber side.

5. The hydraulic lubrication integrated system according to claim 1, characterized in that, The hydraulic push rod has one or at least two telescopic rods.

6. The hydraulic lubrication integrated system according to claim 2, characterized in that, An overflow valve is provided between the first electrically controlled switching valve and the hydraulic oil tank.

7. The hydraulic lubrication integrated system according to claim 1, characterized in that, The rotating shaft has an outer part and an inner part, and the outer part and the inner part are connected by the same long shaft or the two parts are coaxially driven.

8. A wind turbine generator set, characterized in that, Including a hydraulic lubrication integrated system as described in any one of claims 1-7.

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