CN212988714U

CN212988714U - Oil cylinder sealing leakage detection device of wind generating set

Info

Publication number: CN212988714U
Application number: CN202021728058.5U
Authority: CN
Inventors: 杨明升
Original assignee: Tianjin Zhongtian Huineng Technology Co ltd
Current assignee: Tianjin Zhongtian Huineng Technology Co ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-04-16
Anticipated expiration: 2030-08-18

Abstract

The utility model provides a wind generating set's sealed leakage detection device of hydro-cylinder belongs to wind power generation technical field. The oil cylinder sealing leakage detection device of the wind generating set comprises an outer frame mechanism, a clamping mechanism and an inflation mechanism. The outer frame mechanism comprises a sealing box and an observation window, the observation window is embedded in one side of the sealing box, an opening is formed in one side of the sealing box, and the clamping mechanism comprises an air cylinder, a support assembly, a driving assembly, a hydraulic cylinder body, a clamping assembly, a supporting rod, a sealing plate and a phenolphthalein bottle. The utility model discloses an effect of cylinder, box, opening, connector, pneumatic cylinder body, servo motor, first conical gear, second conical gear, threaded rod, slide bar, splint, branch, closing plate, air compressor, solenoid valve, gas holder, observation window and phenolphthalein bottle to reach convenient effectual purpose, the step is simple convenient during the detection, does not need people hard, and it is quick to detect simultaneously, efficient.

Description

Oil cylinder sealing leakage detection device of wind generating set

Technical Field

The utility model relates to a wind power generation field particularly, relates to a wind generating set's sealed leakage detection device of hydro-cylinder.

Background

The wind-driven generator group includes wind wheel, generator, contain blade, wheel hub, reinforcement, etc. in the wind wheel to make up, the cylinder is also called the fluid cylinder, it is the hydraulic actuator that changes the hydraulic energy into the mechanical energy, do the straight reciprocating motion (or swing motion), it is simple in construction, reliable in operation, when using it to realize the reciprocating motion, can remove the decelerator, and there is no transmission clearance, it is steady to move, the cylinder of the wind-driven generator group needs good leakproofness to guarantee the cylinder does not leak, and the existing sealed leak detection device is not convenient and effective enough, seal and prevent the leakage of the working medium and prevent the external foreign matter from entering hydraulic component and hydraulic system, people need to detect the leakproofness of the cylinder in multiple steps, waste time and energy, and low in efficiency.

SUMMERY OF THE UTILITY MODEL

In order to compensate the above deficiency, the utility model provides a wind generating set's sealed leakage detection device of hydro-cylinder aims at improving not enough convenient effectual problem.

The utility model discloses a realize like this:

the utility model provides a wind generating set's sealed leakage detection device of hydro-cylinder, include frame mechanism, clamping mechanism and aerify the mechanism.

The outer frame mechanism comprises a seal box and an observation window, the observation window is embedded in one side of the seal box, an opening is formed in one side of the seal box, the clamping mechanism comprises an air cylinder, a support component, a driving component, a hydraulic cylinder body, a clamping component, a supporting rod, a sealing plate and a phenolphthalein bottle, the support component comprises a box body, the driving component comprises a servo motor, a first conical gear, a second conical gear and a threaded rod, the clamping component comprises a sliding rod, a clamping plate and a sliding block, the air cylinder is connected to the inner wall of the seal box, the box body is installed on an output shaft of the air cylinder, the servo motor is connected to the inner wall of the box body, the first conical gear is installed on an output shaft of the servo motor, the second conical gear is connected to the first conical gear in a meshing manner, and the threaded, the threaded rod is threaded through the slide rod, the slide rods are symmetrically distributed, the slide block is arranged at one end of each slide rod, the slide block is connected to the inner wall of the box body in a sliding manner, the other end of each slide rod penetrates and extends to the outside of the box body, the clamping plates are connected to the other end of each slide rod, the hydraulic cylinder body is arranged between the two clamping plates, the phenolphthalein bottle is arranged at one side of the box body, the supporting rod is connected to one side of the box body, the sealing plate is arranged at one end of the supporting rod, the sealing plate is in interference fit with the opening, the box body and the hydraulic cylinder body can move in the opening, the inflation mechanism comprises an air compressor, a telescopic pipe, a connecting pipe, an electromagnetic valve and an air storage tank, the air compressor and the air, the electromagnetic valve is installed on the connecting pipe, the air outlet end of the air compressor is communicated with the connector through the telescopic pipe, and the connector can be sleeved with the oil inlet of the hydraulic cylinder body in a sealing mode.

The utility model discloses a wind generating set's cylinder seal leakage detection device embodiment, the threaded rod both ends rotate connect in the box inner wall.

The utility model discloses an in the sealed leakage detection device embodiment of wind generating set's hydro-cylinder, the jar mouth has been seted up to gas holder one end, the jar mouth runs through and extends to the seal box is outside, jar mouth one end sealing connection has sealed lid.

The utility model discloses an in the sealed leak testing device embodiment of wind generating set's hydro-cylinder, splint one end fixedly connected with non-slip raised, non-slip raised is the arc structure.

The utility model discloses an in the sealed leakage detection device embodiment of wind generating set's hydro-cylinder, the slide bar internal surface sets up threaded hole, the screw hole with threaded rod threaded connection.

The utility model discloses an in the sealed leak testing device embodiment of wind generating set's hydro-cylinder, the spout has been seted up to the box inner wall, slider sliding connection in the spout.

The utility model discloses an in the sealed leak testing device embodiment of wind generating set's hydro-cylinder, the guide way has been seted up to the seal box inner wall, box one side is rotated and is connected with the walking wheel, the walking wheel can in remove in the guide way.

The utility model discloses a wind generating set's cylinder seal leakage detection device embodiment, the observation window can be observed the phenolphthalein bottle.

The utility model discloses an in the sealed leakage detection device embodiment of wind generating set's hydro-cylinder, the through-hole has been seted up to box one side, slide bar sliding connection in the through-hole.

The utility model discloses an in the sealed leakage detection device embodiment of wind generating set's hydro-cylinder, seal box inner wall fixedly connected with LED lamp.

The utility model has the advantages that: the utility model discloses a wind generating set's sealed leakage detection device of hydro-cylinder that obtains through above-mentioned design, when using, the control cylinder extends outward, the cylinder can drive the box and pass the opening, then seal the cover at the oil inlet of pneumatic cylinder body with the connector, put the pneumatic cylinder body in the middle of the box again, open servo motor, servo motor can drive first conical gear and rotate, first conical gear can drive second conical gear and rotate, second conical gear can drive the threaded rod and rotate, because two screw hole screw thread directions on two slide bars are opposite, the threaded rod can drive two slide bars simultaneously through two screw holes and move inwards, the slide bar can drive the splint and move inwards, the splint can clamp the pneumatic cylinder body, then control cylinder contracts inwards, the cylinder can drive the box and move left, the box can drive pneumatic cylinder body and branch to the seal incasement, meanwhile, the supporting rod can drive the sealing plate to move leftwards, the opening can be sealed by the sealing plate, the air compressor and the electromagnetic valve are opened at the moment, the air compressor can fill sulfur dioxide in the air storage tank into the hydraulic cylinder body, the color of the phenolphthalein solution in the phenolphthalein bottle can be observed from the observation window, the color of the phenolphthalein solution is red, if the hydraulic cylinder body leaks, the leaked sulfur dioxide can react with water in the phenolphthalein bottle to generate sulfurous acid, the red phenolphthalein solution is alkaline, neutralization reaction occurs when the sulfurous acid is encountered, the red color of the solution fades, if the hydraulic cylinder body does not leak, the phenolphthalein solution continues to be red, the tightness of the hydraulic cylinder body can be judged accordingly, and therefore the purpose of convenience and effectiveness is achieved, the steps are simple and convenient to detect, labor is.

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 a schematic structural view of a cylinder seal leakage detection device of a wind turbine generator system according to an embodiment of the present invention;

fig. 2 is a schematic view of a first view angle structure of an outer frame mechanism according to an embodiment of the present invention;

fig. 3 is a schematic view of a second view angle structure of the outer frame mechanism according to the embodiment of the present invention;

fig. 4 is a schematic view of a first viewing angle structure of a clamping mechanism according to an embodiment of the present invention;

fig. 5 is a schematic view of a second perspective structure of a clamping mechanism according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a support assembly according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a driving assembly according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a clamping assembly according to an embodiment of the present invention;

fig. 9 is a schematic structural view of an inflation mechanism according to an embodiment of the present invention.

In the figure: 10. an outer frame mechanism; 110. a sealing box; 120. an LED lamp; 130. an opening; 140. a guide groove; 150. an observation window; 20. a clamping mechanism; 210. a cylinder; 220. a seat assembly; 221. a box body; 222. a chute; 223. a through hole; 230. a drive assembly; 231. a servo motor; 232. a first conical gear; 233. a second conical gear; 234. a threaded rod; 240. A hydraulic cylinder body; 250. a clamping assembly; 251. a slide bar; 252. a splint; 253. anti-skid projections; 254. a slider; 255. a threaded hole; 260. a strut; 270. a sealing plate; 280. phenolphthalein bottles; 290. a traveling wheel; 30. an inflation mechanism; 310. an air compressor; 320. a telescopic pipe; 330. a connector; 340. a connecting pipe; 350. an electromagnetic valve; 360. a gas storage tank; 370. and (4) opening the tank.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

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 work 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 present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1, the present invention provides a device for detecting leakage of a cylinder seal of a wind turbine generator system, which includes an outer frame mechanism 10, a clamping mechanism 20 and an inflating mechanism 30.

Wherein, clamping mechanism 20 sets up inside frame mechanism 10, and inflating mechanism 30 fixed connection is inside frame mechanism 10, and frame mechanism 10 is seal structure, and clamping mechanism 20 is used for the tight hydro-cylinder of clamp, and the control hydro-cylinder enters into frame mechanism 10, and inflating mechanism 30 is used for filling into sulfur dioxide in the hydro-cylinder, measures sealed the leakage.

Referring to fig. 1, 2 and 3, the outer frame mechanism 10 includes a sealing box 110 and an observation window 150, the observation window 150 is embedded in one side of the sealing box 110, an opening 130 is formed in one side of the sealing box 110, the inner wall of the sealing box 110 is fixedly connected with an LED lamp 120, specifically, the LED lamp 120 is fixedly connected to the inner wall of the sealing box 110 through a screw, and the LED lamp 120 is used for illumination to assist people to observe the condition inside the sealing box 110.

Referring to fig. 1, 2, 4, 5, 6, 7, and 8, the clamping mechanism 20 includes an air cylinder 210, a support assembly 220, a driving assembly 230, a hydraulic cylinder body 240, a clamping assembly 250, a supporting rod 260, a sealing plate 270, and a phenolphthalein bottle 280, the support assembly 220 includes a box body 221, the driving assembly 230 includes a servo motor 231, a first bevel gear 232, a second bevel gear 233, and a threaded rod 234, the clamping assembly 250 includes a sliding rod 251, a clamping plate 252, and a sliding block 254, the air cylinder 210 is connected to an inner wall of the sealed box 110, specifically, the air cylinder 210 is fixedly connected to the inner wall of the sealed box 110 by a screw, the box body 221 is mounted to an output shaft of the air cylinder 210, specifically, the box body 221 is fixedly mounted to the output shaft of the air cylinder 210 by welding, the servo motor 231 is connected to an inner wall of the box body 221, specifically, the servo motor 231, specifically, the first conical gear 232 is fixedly installed on an output shaft of the servo motor 231 through welding, the second conical gear 233 is connected to the first conical gear 232 in a meshed manner, the threaded rod 234 is fixedly penetrated through the second conical gear 233, the threaded rod 234 is penetrated through the sliding rod 251 in a threaded manner, the sliding rod 251 is arranged in two symmetrical distributions, the sliding block 254 is installed at one end of the sliding rod 251, specifically, the sliding block 254 is installed at one end of the sliding rod 251 through welding, the sliding block 254 is slidably connected to the inner wall of the box 221, the other end of the sliding rod 251 is penetrated through and extended to the outside of the box 221, the clamping plate 252 is connected to the other end of the sliding rod 251, specifically, the clamping plate 252 is fixedly connected to the other end of the sliding rod 251 through welding, the hydraulic cylinder body 240 is located between the two clamping plates 252, the phenolphthal, concretely, branch 260 is connected in box 221 one side through welded fastening, sealing plate 270 is installed in branch 260 one end, it is specific, sealing plate 270 is through gluing fixed mounting in branch 260 one end, sealing plate 270 is the rubber slab, sealing plate 270 and opening 130 interference fit, box 221 and hydraulic cylinder body 240 can remove in opening 130, cylinder 210 is used for controlling box 221 and removes about, servo motor 231 is used for driving first conical gear 232 to rotate, then it is rotatory to drive threaded rod 234 through second conical gear 233, threaded rod 234 can drive slide bar 251 and remove in opposite directions, slide bar 251 can make splint 252 press from both sides tightly or loosen hydraulic cylinder body 240, sealing plate 270 is used for sealed opening 130, phenolphthalein bottle 280 is used for detecting whether there is sulfur dioxide in the seal box 110, and then judge hydraulic cylinder body 240 leakproofness.

In some specific embodiments, two ends of the threaded rod 234 are rotatably connected to the inner wall of the box 221, specifically, two ends of the threaded rod 234 are rotatably connected to the inner wall of the box 221 through bearings, one end of the clamping plate 252 is fixedly connected with the anti-skid protrusion 253, specifically, one end of the clamping plate 252 is fixedly connected with the anti-skid protrusion 253 through welding, the anti-skid protrusion 253 is of an arc-shaped structure, the inner surface of the sliding rod 251 is provided with a threaded hole 255, the threaded hole 255 is in threaded connection with the threaded rod 234, the inner wall of the box 221 is provided with a sliding groove 222, the sliding block 254 is slidably connected to the sliding groove 222, the inner wall of the seal box 110 is provided with a guide groove 140, one side of the box 221 is rotatably connected with a traveling wheel 290 through a bearing, the traveling wheel 290 can move in the guide groove 140, the, the anti-slip protrusions 253 increase the friction force between the clamp plate 252 and the cylinder body 240, and the traveling wheels 290 assist the movement of the case 221.

Referring to fig. 1, 2, 4 and 8, the inflation mechanism 30 includes an air compressor 310, an extension tube 320, a connector 330, a connecting tube 340, an electromagnetic valve 350 and an air tank 360, the air compressor 310 and the air tank 360 are connected to the inner wall of the seal box 110, specifically, the air compressor 310 and the air tank 360 are fixedly connected to the inner wall of the seal box 110 by screws, an air inlet end of the air compressor 310 is communicated with the air tank 360 by the connecting tube 340, the electromagnetic valve 350 is installed on the connecting tube 340, an air outlet end of the air compressor 310 is communicated with the connector 330 by the extension tube 320, the connector 330 can be hermetically sleeved on an oil inlet of the hydraulic cylinder body 240, the air compressor 310 is used for compressing sulfur dioxide stored in the air tank 360 into the hydraulic cylinder body 240 by the extension tube 320 through the connecting tube 340, detecting whether the hydraulic cylinder body 240 is, the solenoid valve 350 is used to prevent sulfur dioxide in the gas holder 360 from running around.

In some specific embodiments, a tank opening 370 is formed at one end of the gas storage tank 360, the tank opening 370 extends through the outside of the sealing box 110, a sealing cover is hermetically connected to one end of the tank opening 370, and the tank opening 370 is used for adding sulfur dioxide into the gas storage tank 360.

The working principle of the oil cylinder sealing leakage detection device of the wind generating set is as follows: when the hydraulic cylinder is used, the control cylinder 210 extends outwards, the cylinder 210 drives the box body 221 to pass through the opening 130, then the connector 330 is hermetically sleeved at an oil inlet of the hydraulic cylinder body 240, the hydraulic cylinder body 240 is placed in the middle of the box body 221, the servo motor 231 is turned on, the servo motor 231 drives the first bevel gear 232 to rotate, the first bevel gear 232 drives the second bevel gear 233 to rotate, the second bevel gear 233 drives the threaded rod 234 to rotate, because the thread directions of the two threaded holes 255 on the two sliding rods 251 are opposite, the threaded rod 234 drives the two sliding rods 251 to move inwards through the two threaded holes 255, the sliding rods 251 drive the clamping plate 252 to move inwards, the clamping plate 252 clamps the hydraulic cylinder body 240, then the control cylinder 210 contracts inwards, the cylinder 210 drives the box body 221 to move leftwards, the box body 221 drives the hydraulic cylinder body 240 and the supporting rod 260 to be in the sealed box, meanwhile, the supporting rod 260 can drive the sealing plate 270 to move leftwards, the opening 130 can be sealed by the sealing plate 270, the air compressor 310 and the electromagnetic valve 350 are opened at the moment, sulfur dioxide in the air storage tank 360 can be filled into the hydraulic cylinder body 240 by the air compressor 310, the color of the phenolphthalein solution in the phenolphthalein bottle 280 can be observed from the observation window 150, the color of the phenolphthalein solution is red, if the hydraulic cylinder body 240 leaks, the leaked sulfur dioxide can react with water in the phenolphthalein bottle 280 to generate sulfurous acid, the red phenolphthalein solution is alkaline and undergoes a neutralization reaction when encountering the sulfurous acid, the red color of the solution fades, if the hydraulic cylinder body 240 does not leak, the phenolphthalein solution continues to be red, and therefore the sealing performance of the hydraulic cylinder body 240 can be judged, the convenient and effective purpose is achieved, the detection steps are simple and convenient, people do.

It should be noted that the specific model specifications of the LED lamp 120, the cylinder 210, the servo motor 231, the air compressor 310 and the electromagnetic valve 350 need to be determined according to the actual specification of the device, and the specific model selection calculation method adopts the prior art, so detailed description is omitted.

The power supply of the LED lamp 120, the cylinder 210, the servo motor 231, the air compressor 310, and the solenoid valve 350 and the principle thereof will be apparent to those skilled in the art and will not be described in detail herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by 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 device for detecting the oil cylinder sealing leakage of a wind generating set is characterized by comprising

The outer frame mechanism (10), the outer frame mechanism (10) includes a sealed box (110) and an observation window (150), the observation window (150) is embedded in one side of the sealed box (110), and one side of the sealed box (110) is provided with an opening (130);

the clamping mechanism (20), the clamping mechanism (20) comprises an air cylinder (210), a support component (220), a driving component (230), a hydraulic cylinder body (240), a clamping component (250), a support rod (260), a sealing plate (270) and a phenolphthalein bottle (280), the support component (220) comprises a box body (221), the driving component (230) comprises a servo motor (231), a first conical gear (232), a second conical gear (233) and a threaded rod (234), the clamping component (250) comprises a sliding rod (251), a clamping plate (252) and a sliding block (254), the air cylinder (210) is connected to the inner wall of the sealing box (110), the box body (221) is installed on the output shaft of the air cylinder (210), the servo motor (231) is connected to the inner wall of the box body (221), and the first conical gear (232) is installed on the output shaft of the servo motor (231), the second bevel gear (233) is engaged and connected with the first bevel gear (232), the threaded rod (234) is fixedly penetrated through the second bevel gear (233), the threaded rod (234) is threaded through the sliding rod (251), the sliding rod (251) is arranged in two symmetrical distribution, the sliding block (254) is installed at one end of the sliding rod (251), the sliding block (254) is slidably connected with the inner wall of the box body (221), the other end of the sliding rod (251) is penetrated and extended to the outside of the box body (221), the clamping plate (252) is connected at the other end of the sliding rod (251), the hydraulic cylinder body (240) is located between the two clamping plates (252), the phenolphthalein bottle (280) is installed at one side of the box body (221), the supporting rod (260) is connected at one side of the box body (221), and the sealing plate (270) is installed at one end of the supporting rod (260), the sealing plate (270) is in interference fit with the opening (130), and the box body (221) and the hydraulic cylinder body (240) can move in the opening (130);

aerify mechanism (30), aerify mechanism (30) including air compressor (310), flexible pipe (320), connector (330), connecting pipe (340), solenoid valve (350) and gas holder (360), air compressor (310) with gas holder (360) connect in seal box (110) inner wall, the inlet end of air compressor (310) passes through connecting pipe (340) with gas holder (360) intercommunication, solenoid valve (350) install in on connecting pipe (340), the end of giving vent to anger of air compressor (310) passes through flexible pipe (320) with connector (330) intercommunication, connector (330) can the sealing washer be in the oil inlet of pneumatic cylinder body (240).

2. The device for detecting the leakage of the oil cylinder seal of the wind generating set according to claim 1, wherein two ends of the threaded rod (234) are rotatably connected to the inner wall of the box body (221).

3. The device for detecting the oil cylinder seal leakage of the wind generating set according to claim 1, wherein a tank opening (370) is formed in one end of the air storage tank (360), the tank opening (370) extends to the outside of the seal box (110) in a penetrating manner, and a seal cover is connected to one end of the tank opening (370) in a sealing manner.

4. The device for detecting the leakage of the oil cylinder seal of the wind generating set according to claim 1, wherein an anti-skid protrusion (253) is fixedly connected to one end of the clamping plate (252), and the anti-skid protrusion (253) is of an arc-shaped structure.

5. The device for detecting the leakage of the oil cylinder seal of the wind generating set according to claim 1, wherein a threaded hole (255) is formed in the inner surface of the sliding rod (251), and the threaded hole (255) is in threaded connection with the threaded rod (234).

6. The device for detecting the oil cylinder seal leakage of the wind generating set according to claim 1, wherein a sliding groove (222) is formed in the inner wall of the box body (221), and the sliding block (254) is slidably connected to the sliding groove (222).

7. The device for detecting the oil cylinder seal leakage of the wind generating set according to claim 1, wherein a guide groove (140) is formed in the inner wall of the seal box (110), a walking wheel (290) is rotatably connected to one side of the box body (221), and the walking wheel (290) can move in the guide groove (140).

8. The device for detecting the leakage of the oil cylinder seal of the wind generating set according to claim 1, wherein the observation window (150) can observe the phenolphthalein bottle (280).

9. The oil cylinder sealing leakage detection device of the wind generating set according to claim 1, wherein a through hole (223) is formed in one side of the box body (221), and the sliding rod (251) is slidably connected to the through hole (223).

10. The oil cylinder seal leakage detection device of the wind generating set according to claim 1, characterized in that an LED lamp (120) is fixedly connected to the inner wall of the seal box (110).