CN209764387U - Detection apparatus for aerogenerator blade - Google Patents

Abstract

The utility model discloses a detection device for blades of a wind driven generator, which comprises an installation box, a liquid storage box arranged in the installation box and a detection component arranged below the liquid storage box, wherein the top of the installation box is provided with a mounting groove, the liquid storage box is arranged in the mounting groove, and the detection component is communicated with the liquid storage box; an installation cavity is arranged in the installation box, the installation cavity is arranged below the installation groove, and the detection assembly is arranged in the installation cavity; the liquid storage tank is characterized in that first limiting plates are arranged on two sides of the liquid storage tank, limiting grooves matched with the first limiting plates are respectively arranged on two sides of the mounting groove, a cover plate is movably connected to the tops of the limiting grooves, and a height adjusting assembly used for adjusting the position of the detection assembly is arranged on the cover plate.

Description

Detection apparatus for aerogenerator blade

Technical Field

The utility model belongs to the technical field of wind power generation detects, especially, relate to a detection device of aerogenerator blade.

Background

Wind energy is energy generated by wind flow, and wind power generation is to convert wind energy into electric energy by using a special power generation device. Because wind power is clean, renewable and abundant energy, and the process of wind power generation does not emit greenhouse gases, wind power generation has gradually become a new alternative to power generation using fossil fuels.

The wind power generation device mainly comprises a wind blade mechanism with a plurality of blades, a transmission mechanism and a power generation device. When the wind power drives the wind blade mechanism, the wind blade mechanism rotates to generate mechanical energy, the mechanical energy is transmitted to the power generation device through the transmission mechanism, and the power generation device converts the mechanical energy into electric energy through electromagnetic action. The generated electric energy is stored in a battery or input to a power supply network.

The blades of the wind driven generator are formed by composite materials and can bear the pressure borne by the blades of the wind driven generator when the blades rotate. In some instances, blades of wind turbines can develop imperfections during the manufacturing process that can cause the blades of the wind turbine to be unable to withstand excessive stresses during operation. In other cases, defects in the blades of wind turbines are due to blade fatigue during extended operation. In other cases, defects in the blades of the wind turbine are caused by the blades being hit by foreign objects, such as sand, during operation. Translation of characters

Generally, the wind driven generator is high in construction cost, and after the wind driven generator is constructed, the wind driven generator is inconvenient to disassemble and inspect at will, so that the blades need to be detected before leaving factories to ensure the operation reliability of the blades; the method and the device for detecting the surface defects of the blades of the wind driven generator disclosed by the Chinese patent CN106645570A detect the real-time pressure value of the to-be-detected area on the surface of the blade through a pressure detection module, judge whether the detected position has the surface defects and the surface defect types according to the comparison result of the pressure difference value between the real-time pressure value and a standard pressure value and a pressure difference preset value, and mark the surface defect position, so that the surface defects which do not meet the process requirements and exist on the surface of the blade are found, and the surface defects are conveniently processed; need calculate its pressure spare after surveying blade pressure, promote the requirement to the workman, influence blade detection efficiency to a certain extent.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome prior art not enough, provide a detection device of aerogenerator blade convenient to improve detection efficiency.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a detection device for blades of a wind driven generator comprises an installation box, a liquid storage box arranged in the installation box and a detection assembly arranged below the liquid storage box, wherein the top of the installation box is provided with an installation groove, the liquid storage box is arranged in the installation groove, and the detection assembly is communicated with the liquid storage box; an installation cavity is arranged in the installation box, the installation cavity is arranged below the installation groove, and the detection assembly is arranged in the installation cavity; first limiting plates are arranged on two sides of the liquid storage tank, first limiting grooves matched with the first limiting plates are respectively arranged on two sides of the mounting groove, a cover plate is movably connected to the tops of the first limiting grooves, and a height adjusting assembly used for adjusting the position of the detection assembly is arranged on the cover plate; the dye liquor is filled in the liquid storage tank and used for marking the defect part, the detection assembly is communicated with the liquid storage tank, when the blade is detected by the detection assembly, after the detection assembly detects the defect, the dye liquor in the liquid storage tank falls on the blade through the detection assembly, and the blade is accurately marked to determine the defect part of the blade, so that the blade is convenient to repair; the blades are detected among the detection assemblies, so that the problem of loss is avoided by a third-party means, the convenience of blade detection is improved, and the efficiency of blade detection is improved; the height of the detection assembly is adjusted through the height adjusting assembly, so that the bottom of the detection assembly is attached to the surface of the blade before detection, the accuracy of detection of the detection assembly is improved, and the detection effect of the blade is improved.

Preferably, the detection assembly comprises a mounting plate arranged in the mounting cavity, a connecting pipe arranged at the bottom of the mounting plate, a first connecting rod penetrating through the connecting pipe, a mounting seat arranged at one end of the first connecting rod and a roller arranged on the mounting seat; the blade surface is detected in a mode that the roller wheels walk on the blade, the purpose of detecting the blade is achieved in a most visual mode, the cost of detecting the blade is reduced, and the blade detection is simpler and easier to operate.

Preferably, a liquid storage cavity is arranged in the mounting plate, the liquid storage cavity is communicated with the liquid storage tank, a first liquid conveying pipe penetrates through the liquid storage tank, a feed opening matched with the first liquid conveying pipe is formed in the top of the mounting plate, a second limiting plate is arranged on the side wall of the first liquid conveying pipe, and a second limiting groove matched with the second limiting plate is formed in the side wall of the feed opening; through mutually supporting of second spacing groove and second limiting plate, promote the cooperation effect of first transfer line and feed opening, fix first transfer line bottom in the feed opening, be convenient for make the dye liquor in the liquid reserve tank enter into the stock solution intracavity to make the gyro wheel accomplish accurate positioning mark to the defect position after detecting the defect on blade surface, the later stage of being convenient for is restoreed the blade surface.

Preferably, a first movable cavity is arranged at the top of the first infusion tube, a first push rod penetrates through the side wall of the first movable cavity, and a control assembly matched with the first push rod is arranged in the first infusion tube; the control component can control the second limiting plate and control the matching effect of the second limiting plate and the second limiting groove, so that the matching effect of the first infusion tube and the feed opening is increased under the matching of the second limiting plate and the second limiting groove when the detection device works; when taking out the liquid reserve tank and maintaining detection device, be convenient for make the second limiting plate deviate from the second spacing inslot through control assembly to can be convenient take out the liquid reserve tank from the install bin, be convenient for to the dismouting of liquid reserve tank.

Preferably, the control assembly comprises a connecting spring arranged at one end of the first push rod, a second connecting rod movably connected to the first push rod, a second push rod penetrating the bottom of the first movable cavity, a third push rod matched with the second push rod and a baffle arranged on the second limiting plate; a first hydraulic cavity is arranged in the first infusion tube, and the third push rod penetrates through the first hydraulic cavity; through the action that promotes first push rod, can drive the third push rod and remove, make the third push rod throw off the cooperation with the baffle, be convenient for make the second limiting plate deviate from the second spacing inslot, make first transfer line throw off the cooperation with the feed opening, be convenient for take out the liquid reserve tank from the install bin, be convenient for maintain liquid reserve tank and install bin inside, reduce device maintenance cost promotes the convenience of maintaining the device.

Preferably, a second hydraulic cavity is arranged in the first infusion tube, a first through hole is formed in the side wall of the first hydraulic cavity, and the first hydraulic cavity is communicated with the second hydraulic cavity through the first through hole; the second push rod penetrates through the second hydraulic cavity, a first push plate is arranged at the top of the third push rod, and a first return spring is arranged at the top of the first push plate; a second movable cavity is further formed in the first infusion tube, the baffle is arranged in the second movable cavity, and the third push rod is arranged in the second movable cavity in a penetrating mode and matched with the baffle; the hydraulic pressure intracavity is equipped with fluid, promote the second push rod down motion under the effect of first push rod, make the second push rod push into the first fluid intracavity with the fluid of second hydraulic pressure intracavity, drive the third push rod motion under the effect of fluid, make the third push rod and baffle throw off the cooperation, the second limiting plate loses entering into the second activity intracavity portion under the effect of pressure after the support of third push rod and when the contact of second spacing inslot wall, make the second limiting plate throw off the cooperation with the second spacing groove, thereby make first transfer line throw off the cooperation with the feed opening, be convenient for take out the liquid reserve tank from the install bin, be convenient for maintain install bin inside and liquid reserve tank.

Preferably, the cover plate is provided with a threaded hole, and the height adjusting assembly comprises a fixing bolt penetrating through the threaded hole, a fixing block movably connected to the top of the mounting box, a mounting block arranged on the cover plate and a fixing assembly arranged on the mounting block; the height of the liquid storage tank in the mounting groove is convenient to adjust through the matching of the threaded hole and the fixing bolt, so that the height of the detection assembly is indirectly adjusted; under the threaded fit of the threaded hole and the fixing bolt, the height of the detection assembly is conveniently controlled more accurately, the rotation adjustment mode is adopted to replace direct pulling adjustment, so that the height adjustment is more accurate, the fine adjustment of the height of the detection assembly is realized, the bottom of the detection assembly is better attached to the surface of the blade, and the detection effect of the detection assembly on the blade is improved; after adjusting fixing bolt to suitable height, play the fixed action to fixing bolt through fixed subassembly, take place the shake when avoiding fixing bolt device operation to influence the cooperation effect of fixing bolt and screw hole, avoid the device to take place to remove at the testing component in testing process, ensure testing result's accuracy.

Preferably, the fixing assembly comprises a third connecting rod and a fourth connecting rod movably connected to the mounting block, and a fourth limiting plate and a fifth limiting plate respectively arranged on the third connecting rod and the fourth connecting rod, the mounting block is provided with a first groove, a limiting spring is arranged in the first groove, and two ends of the limiting spring are respectively contacted with the third connecting rod and the fourth connecting rod; after fixing bolt cap degree adjustment is accomplished, promote third connecting rod and fourth connecting rod and rotate round the tie point under the effect of spacing spring elasticity, make fourth limiting plate and fifth limiting plate imbed in fixing bolt's screw thread, play the fixed action to fixing bolt, avoid fixing bolt to produce the shake when the device moves, promote fixing bolt to determine module's fixed effect to increase testing result's accuracy.

Preferably, a support spring is arranged in the first limiting groove, a third hydraulic cavity is arranged below the first limiting groove, a hydraulic cylinder is arranged on the side wall of the installation box, and a piston rod of the hydraulic cylinder penetrates through the third hydraulic cavity; a fourth hydraulic cavity communicated with the third hydraulic cavity is arranged at the bottom of the first limiting groove, and a push block is arranged in the fourth hydraulic cavity; after the height of the detection assembly is adjusted by the fixing bolt, the fixing assembly is used for fixing the fixing bolt, and the limiting spring is used for supporting the liquid storage tank; the hydraulic cylinder is driven to push the piston rod to move towards the third hydraulic cavity, oil in the third hydraulic cavity is pushed into the fourth hydraulic cavity, the push block is lifted upwards to be contacted with the bottom of the first limiting plate, and the first limiting plate and the liquid storage tank are supported; mutually supporting through ejector pad and fixing bolt plays good fixed effect to first limiting plate and liquid reserve tank, and detection component takes place to remove when avoiding the device operation, fixes detection component on a position, makes the gyro wheel bottom surface contact with the blade surface all the time, ensures to detect the accuracy of structure, promotes the detection effect to the blade.

Preferably, a through cavity is formed in the bottom of the installation cavity, the first connecting rod penetrates through the through cavity, a supporting plate is sleeved on the connecting rod, an adjusting spring is arranged at the bottom of the supporting plate, and the adjusting spring is in contact with the top of the through cavity; when fixing bolt and screw hole mutually support and carry out altitude mixture control, promote the mounting panel down motion under the cooperation of first transfer line and feed opening, play the supporting role through backup pad and regulating spring to determine module, make determine module compress regulating spring under fixing bolt's effect to highly adjusting determine module, make determine module assign fixed effect under regulating spring and fixing bolt's effect, promote the cooperation effect of determine module and blade, increase the accuracy of testing result.

The utility model has the advantages of it is following: the dye liquor is filled in the liquid storage tank and used for marking the defect part, the detection assembly is communicated with the liquid storage tank, when the blade is detected by the detection assembly, after the detection assembly detects the defect, the dye liquor in the liquid storage tank falls on the blade through the detection assembly, and the blade is accurately marked to determine the defect part of the blade, so that the blade is convenient to repair; the blades are detected among the detection assemblies, so that the problem of loss is avoided by a third-party means, the convenience of blade detection is improved, and the efficiency of blade detection is improved; the height of the detection assembly is adjusted through the height adjusting assembly, so that the bottom of the detection assembly is attached to the surface of the blade before detection, the accuracy of detection of the detection assembly is improved, and the detection effect of the blade is improved.

Drawings

Fig. 1 is a schematic view of the detecting device of the wind driven generator blade and the fan blade of the present invention.

Fig. 2 is a schematic structural diagram of a fan blade.

Fig. 3 is a schematic structural diagram of the detecting device for the blade of the wind driven generator according to the present invention.

Fig. 4 is a schematic structural diagram of the detecting device for the wind turbine blade according to the present invention.

Fig. 5 is an enlarged view of a portion a in fig. 4.

Fig. 6 is a schematic cross-sectional view of the detecting device for the blade of the wind driven generator according to the present invention.

Fig. 7 is a schematic sectional view illustrating an exemplary detection device for detecting a blade of a wind turbine according to the present invention.

Fig. 8 is an enlarged view of fig. 7 at B.

Fig. 9 is a schematic structural view of the detection assembly of the detection device for the wind turbine blade of the present invention.

Fig. 10 is a schematic structural view of a liquid storage tank of the detection device of the wind driven generator blade of the present invention.

Fig. 11 is a schematic structural view of the supporting plate of the detecting device for the blade of the wind driven generator of the present invention.

Fig. 12 is a schematic sectional view of the first infusion tube of the present invention.

Fig. 13 is a schematic structural diagram of the power assembly of the present invention.

Detailed Description

In order to make the technical solution of the present invention better understood, the following figures in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and it is obvious that the described embodiments are only 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 efforts shall belong to the protection scope of the present invention.

As shown in fig. 1 to 13, a detection device for a blade of a wind driven generator comprises an installation box 1, a liquid storage box 2 arranged in the installation box 1, and a detection component arranged below the liquid storage box 2, wherein an installation groove 19 is formed in the top of the installation box 1, the liquid storage box 2 is arranged in the installation groove 19, the liquid storage box is of a cylindrical structure and is placed in the installation groove, when the liquid storage box is placed in the installation groove, the top of the liquid storage box is higher than the top of the installation groove, and the detection component is communicated with the liquid storage box 2; an installation cavity 110 is arranged in the installation box 1, the installation cavity 110 is arranged below the installation groove 19, and the detection assembly is arranged in the installation cavity 110; the bottom of the detection assembly penetrates through the installation box, and the bottom of the detection assembly is arranged on the outer side of the installation box; the bottom of the mounting groove is provided with a second through hole, and the mounting cavity is communicated with the mounting groove through the second through hole; the liquid storage tank is characterized in that first limiting plates 25 are arranged on two sides of the liquid storage tank 2, first limiting grooves 17 matched with the first limiting plates 25 are respectively arranged on two sides of the mounting groove 19, the first limiting blocks and the rectangular structures are arranged, when the liquid storage tank is mounted in the mounting groove, the first limiting blocks are placed in the first limiting grooves, the liquid storage tank is limited through the mutual matching of the first limiting blocks and the first limiting grooves, the liquid storage tank cannot rotate in the mounting groove after being mounted in the mounting groove, and the matching effect of the liquid storage tank and the mounting groove is improved; the top of the first limiting groove 17 is movably connected with a cover plate 13, the top of the installation box is provided with a first connecting block 12, the first connecting block is provided with a first connecting hole, the top of the cover plate is provided with a second connecting block 131, the second connecting block is provided with a second connecting hole matched with the first connecting hole, connecting shafts 121 penetrate through the first connecting hole and the second connecting hole, both ends of each connecting shaft are respectively provided with a sixth limiting plate, the sixth limiting plates are in contact with the first connecting block, the connecting shafts cannot be separated from the connecting holes under the action of the sixth limiting plates, the matching effect of the connecting holes and the connecting shafts is improved, the movable connection of the cover plate and the installation box is realized under the action of the connecting blocks and the connecting shafts, and the cover plate can rotate; and the cover plate 13 is provided with a height adjusting assembly for adjusting the position of the detection assembly.

When installing the liquid reserve tank, will lap from first spacing inslot and turn up, make the apron roll out from first spacing inslot, make the position of first limiting plate and first spacing groove corresponding, put into the mounting groove with the liquid reserve tank, make liquid reserve tank and mounting box form the cooperation, treat the liquid reserve tank and put into the mounting groove back in, first limiting plate enters into first spacing inslot, rotate the apron around the connecting axle, make the apron rotate to first spacing groove top, seal first spacing groove top, adjust the position of first spacing plate through altitude mixture control subassembly, thereby adjust the position of detecting element under the effect of liquid reserve tank, make the detecting element bottom contact with 7 surfaces of blade all the time, promote the detection effect of detection device to the blade, ensure the accuracy of testing result.

The cover plate 13 is provided with a threaded hole 133, and the height adjusting assembly comprises a fixing bolt 11 penetrating through the threaded hole 133, a fixing block 16 hinged to the top of the installation box 1, an installation block 132 arranged on the cover plate 13 and a fixing assembly arranged on the installation block 132; the top of the fixing bolt is provided with a rotating plate 111, the fixing bolt is driven to rotate conveniently through the rotating plate, and a supporting spring 173 is arranged in the first limiting groove 17; after the liquid storage tank is placed in the mounting groove, the first limiting plate is placed on the supporting spring, and the liquid storage tank and the first limiting plate are supported through the supporting spring; the cover plate is rotated to cover the top of the first limiting groove, so that the top surface of the cover plate and the top surface of the installation box are positioned on the same horizontal plane, the fixing block is rotated, one end of the fixing block is rotated to be above the cover plate, the cover plate is limited, and the cover plate cannot be turned upwards; the fixing bolt is rotated through the rotating plate, the fixing bolt moves downwards under the matching of the fixing bolt and the threaded hole until the bottom of the fixing bolt is contacted with the top of the first limiting plate, the detection assembly at the bottom of the installation box is observed, meanwhile, the rotating plate is continuously rotated to enable the fixing bolt to move downwards, the first limiting plate is pushed under the action of the fixing bolt to compress the supporting spring, the first limiting plate moves downwards to drive the liquid storage box to move downwards, the liquid storage box pushes the detection assembly to move downwards, the bottom of the detection assembly is contacted with the surface of the blade, the bottom of the detection assembly is mutually attached to the surface of the blade along with the slow pressing of the fixing bolt, the contact effect of the detection assembly and the surface of the blade is improved, and the detection assembly can conveniently detect the defects on the; after the height adjusting assembly fixes the position of the detection assembly, the fixing assembly fixes the fixing bolt, so that the fixing bolt is fixed in the threaded hole, and the fixing effect of the fixing bolt on the detection assembly is improved; the elastic force of the supporting spring is matched with the fixing bolt together, so that a good fixing effect is provided for the liquid storage box, meanwhile, a good fixing effect is provided for the detection assembly through the liquid storage box, the position of the detection assembly is convenient to adjust, and the detection effect of the detection device on the blade is improved; under the threaded fit of the threaded hole and the fixing bolt, the height of the detection assembly is conveniently controlled more accurately, the rotation adjustment mode is adopted to replace direct pulling adjustment, so that the height adjustment is more accurate, the fine adjustment of the height of the detection assembly is realized, the bottom of the detection assembly is better attached to the surface of the blade, and the detection effect of the detection assembly on the blade is improved; after adjusting fixing bolt to suitable height, play the fixed action to fixing bolt through fixed subassembly, take place the shake when avoiding fixing bolt device operation to influence the cooperation effect of fixing bolt and screw hole, avoid the device to take place to remove at the testing component in testing process, ensure testing result's accuracy.

The fixing assembly comprises a third connecting rod 1325 and a fourth connecting rod 1326 movably connected to the mounting block 132, and a fourth limiting plate 1324 and a fifth limiting plate which are respectively arranged on the third connecting rod 1325 and the fourth connecting rod 1326, a first groove 1321 is arranged on the mounting block 132, a limiting spring 1322 is arranged in the first groove 1321, and two ends of the limiting spring 1322 are respectively contacted with the third connecting rod 1325 and the fourth connecting rod 1326; the inner wall of the first groove is provided with a positioning rod 1323, the positioning rod penetrates through the limiting spring, and the limiting spring is fixed through the positioning rod, so that the limiting spring is prevented from being separated from the first groove, and the fixing effect of the limiting spring in the first groove is improved; a limiting rod 13261 is arranged on the fourth connecting rod, a third connecting block is arranged on the third connecting rod, a connecting arm 13251 is hinged to the third connecting block, and a limiting hole matched with the limiting rod is formed in the connecting arm; when the limiting spring is in an unstressed state, two ends of the limiting spring are respectively contacted with the inner walls of two ends of the first groove to support the third connecting rod and the fourth connecting rod, so that the fourth limiting plate and the fifth limiting plate are contacted with the fixing bolt around a hinge point by the third connecting rod and the fourth connecting rod, and the fourth limiting plate and the fifth limiting plate are embedded in threads of the fixing bolt to prevent the fixing bolt from randomly rotating; when the cover plate is covered into the first limiting groove, the fixing block fixes the cover plate, so that the cover plate cannot be turned upwards, the third connecting rod and the fourth connecting rod are pushed towards the inside of the first groove, one ends of the third connecting rod and the fourth connecting rod move towards each other to compress the limiting spring, and the fourth limiting plate and the fifth limiting plate are separated from contact with the fixing bolt, when the third connecting rod and the fourth connecting rod rotate to the distance equal to the length of the connecting arm, the connecting arm is turned over to ensure that the limiting hole on the connecting arm is matched with the limiting rod on the fourth connecting rod through the mutual matching of the limiting hole and the limiting rod, the third connecting rod and the fourth connecting rod are fixed, so that the third connecting rod and the fourth connecting rod cannot reset under the action of a limiting spring after the third connecting rod and the fourth connecting rod are loosened and extruded, and the fixing bolt is convenient to operate; after finishing through fixing bolt to determine module's position adjustment, up turn the linking arm, make spacing hole deviate from the gag lever post, third connecting rod and fourth connecting rod lose the fixed action, make third connecting rod and fourth connecting rod down first recess both ends motion under the effect of spacing spring, thereby make fourth limiting plate and fifth limiting plate and fixing bolt surface contact, imbed in the screw thread on the fixing bolt lateral wall, play the fixed action to fixing bolt through fourth limiting plate and fifth limiting plate, avoid fixing bolt to take place vibrations in the threaded hole when the device moves, promote the fixed effect to determine module, ensure the accuracy of testing result, increase the detection device and to the detection effect of blade.

A third hydraulic cavity 18 is arranged below the first limiting groove 17, a hydraulic cylinder 14 is arranged on the side wall of the installation box 1, a piston rod of the hydraulic cylinder 14 penetrates through the third hydraulic cavity 18, a second push plate 141 is arranged on the piston rod of the hydraulic cylinder, and the cross section of the fourth push plate is the same as that of the third hydraulic cavity; a fourth hydraulic cavity 171 communicated with the third hydraulic cavity 18 is arranged at the bottom of the first limiting groove 17, and a push block 172 is arranged in the fourth hydraulic cavity 171; the hydraulic cavity is filled with oil, when the liquid storage tank is placed in the mounting groove, the first limiting plate is placed on the supporting spring, the liquid storage tank and the first limiting plate are supported through the supporting spring, and at the moment, dye liquor is not filled in the liquid storage tank; the height of the first limiting plate and the height of the liquid storage tank are adjusted under the action of the height adjusting assembly, so that the first limiting plate compresses the supporting spring, the heights of the first limiting plate and the liquid storage tank in the mounting groove and the first limiting groove are adjusted, and the height of the detection assembly is adjusted; when the height adjusting assembly determines the heights of the liquid storage tank and the first limiting plate in the mounting groove and the first limiting groove, the hydraulic cylinder is started, a piston rod of the hydraulic cylinder is pushed to move towards the third hydraulic cavity, oil in the third hydraulic cavity is pushed to move towards the inside of the third hydraulic cavity under the action of the second push plate, the oil in the third hydraulic cavity enters the fourth hydraulic cavity under the action of pressure, the pushing block is pushed to move upwards along the fourth hydraulic cavity by oil pressure until the top of the pushing block is contacted with the bottom of the first limiting plate, the first limiting plate is supported, a stable supporting effect is provided for the liquid storage tank by matching with the supporting spring, the phenomenon that the gravity of the liquid storage tank is increased after dye liquor is added into the liquid storage tank is avoided, and the liquid storage tank compresses the supporting spring to influence the detecting assembly to detect the blades is avoided; the detection assembly after the height adjustment is completed has a fixing effect, and the detection effect of the detection device on the blade is improved.

The detection assembly comprises a mounting plate 3 arranged in the mounting cavity 110, a plurality of groups of connecting pipes 32 arranged at the bottom of the mounting plate 3, a first connecting rod 33 penetrating the connecting pipes 32, a mounting seat 34 arranged at one end of the first connecting rod 33 and a roller 35 arranged on the mounting seat 34; a liquid storage cavity 36 is arranged in the mounting plate 3, and the liquid storage cavity 36 is communicated with the liquid storage tank 2; a third movable cavity 321 is arranged in the connecting pipe, a first connecting rod penetrates through the third movable cavity, and the first connecting rod can move up and down in the third movable cavity; a fourth movable cavity 322 is arranged at the bottom of the connecting pipe, a seventh limiting plate 332 is arranged on the first connecting rod, the seventh limiting plate is arranged in the fourth movable cavity, fixed springs 3221 are respectively arranged at the top and the bottom of the seventh limiting plate, one end of each fixed spring is fixedly connected with the seventh limiting plate, the other end of each fixed spring is fixedly connected with the inner wall of the fourth movable cavity, and the seventh limiting plate can move up and down in the fourth limiting plate; the inner wall of the first connecting rod is provided with a water storage cavity 323 which is communicated with the water storage cavity, dye liquor entering the water storage cavity through the liquid storage tank enters the water storage cavity, the side wall of the water storage cavity is provided with a first liquid outlet hole 324 and a second liquid outlet hole 325, the second liquid outlet hole is arranged below the first liquid outlet hole, and a partition plate is arranged between the first liquid outlet hole and the second liquid outlet hole; a first liquid inlet hole 333 is formed in the side edge of the top of the first connecting rod, a second liquid conveying pipe 334 is arranged at the top of the first connecting rod, and the first liquid inlet hole is communicated with the second liquid conveying pipe; a third infusion tube 331 is arranged in the first connecting rod, and the second infusion tube is communicated with the third infusion tube; be equipped with latus rectum 351 on the gyro wheel, the latus rectum is located the third transfer line below, and the dye liquor that falls through the third transfer line passes through the latus rectum and can directly drop to the blade.

When the position of the roller is adjusted through the height adjusting assembly, the detection assembly is pushed to move downwards, the fixing bolt continues to rotate until the roller is contacted with the surface of the blade, the fixing bolt continues to push the mounting plate to move downwards, the roller pushes the first connecting rod to move towards the inside of the mounting box under the action of the surface of the blade, the seventh limiting plate is moved to the upper part of the fourth movable cavity, the fixing spring at the top of the seventh limiting plate is in a contraction state, the limiting plate at the bottom of the seventh limiting plate is in a stretching state, the first liquid inlet hole is positioned at one side of the partition plate between the first liquid outlet hole and the second liquid outlet hole, the first liquid outlet hole and the second liquid outlet hole are sealed through the contact of the side wall of the first connecting rod and the inner wall of the third movable cavity, and dye liquid is prevented from flowing out of the first liquid outlet hole and the; the partition plate has a sealing effect on the first liquid inlet hole, so that dye liquor is prevented from entering the first liquid inlet hole; when the detection device detects the blade, the roller moves along the surface of the blade to detect the defects on the surface of the blade, when the roller moves to the protrusion on the surface of the blade, the roller moves upwards under the action of the protrusion to push the first connecting rod to move upwards, so that the seventh limiting plate moves towards the top of the fourth movable cavity, the first liquid inlet hole moves upwards to the position of the first liquid outlet hole, dye liquid is introduced into the first liquid inlet hole through the first liquid outlet hole, the dye liquid falls onto the blade through the third liquid conveying pipe, and the surface of the blade is marked; when the roller moves to the depression of the surface of the blade, the supporting force of the blade to the roller disappears, the seventh limiting plate moves downwards under the action of the elastic force of the fixed spring to drive the first connecting rod to move, so that the first liquid inlet hole corresponds to the second liquid outlet hole, dye liquor is introduced into the first liquid inlet hole through the second liquid outlet hole, and the dye liquor falls onto the blade through the third liquid conveying pipe to mark the surface of the blade; the detection assembly can rapidly and accurately mark the surface of the blade after detecting the surface defect of the blade so as to determine the position of the blade defect and facilitate the repair of the surface of the blade in the later period; through the setting of multiunit head rod and multiunit gyro wheel, the device of being convenient for detects the whole surface of blade, promotes the detection efficiency to the blade.

A through cavity 120 is formed in the bottom of the mounting cavity 110, the first connecting rod 33 penetrates through the through cavity 120, a supporting plate 6 is sleeved on the connecting pipe 32, an adjusting spring 62 is arranged at the bottom of the supporting plate 6, and the adjusting spring 62 is in contact with the top of the through cavity 120; the supporting plate is provided with a plurality of fourth through holes 61 matched with the connecting pipes, and the connecting pipes penetrate through the fourth through holes; the section of the through cavity is smaller than that of the mounting cavity, the side wall of the through cavity is arranged on the inner wall of the mounting cavity, and the first connecting rod penetrates through the through cavity; when the fixing bolt is matched with the threaded hole for height adjustment, the detection assembly is supported by the supporting plate and the adjusting spring, the detection assembly compresses the adjusting spring under the action of the fixing bolt, so that the height of the detection assembly is adjusted, the detection assembly achieves a fixing effect under the action of the adjusting spring and the fixing bolt, the matching effect of the detection assembly and the blade is improved, and the accuracy of a detection result is improved; through adjusting spring's elasticity effect, realize detecting element's height-adjustable, carry out height-adjustable to detecting element and play the supporting role to detecting element when, fix detecting element at required height, promote detection device to the detection effect of blade, adapt to the blade defect detection of different thickness.

A first infusion tube 22 is arranged in the liquid storage tank 2 in a penetrating way, the bottom of the first infusion tube is arranged outside the liquid storage tank, and the bottom of the first infusion tube is arranged below the liquid storage tank; a feed opening 31 matched with the first infusion tube 22 is formed in the top of the mounting plate 3, a second limiting plate 228 is arranged on the side wall of the first infusion tube 22, and a second limiting groove 311 matched with the second limiting plate 228 is formed in the side wall of the feed opening 31; the third push plate 312 is arranged at the bottom of the feed opening, when the liquid storage tank is placed into the mounting groove, the first liquid conveying pipe is inserted into the feed opening and is contacted with the third push plate, and the second limiting plate is embedded into the second limiting groove, so that the first liquid conveying pipe is fixedly matched with the feed opening, and the connecting effect of the first liquid conveying pipe and the feed opening is improved; through the mutual matching of the third push plate and the first liquid conveying pipe, the fixing bolt pushes the mounting plate to move when the height of the liquid storage box is adjusted, so that the detection assembly is driven to move, and the height of the detection assembly is conveniently adjusted; the liquid reserve tank top is equipped with case lid 24, is equipped with inlet tube 21 on the case lid, and accessible inlet tube adds the dye liquor in toward the liquid reserve tank after packing the liquid reserve tank into the mounting groove.

A first movable cavity 222 is arranged at the top of the first infusion tube 22, a first push rod 23 penetrates through the side wall of the first movable cavity 222, and a control component matched with the first push rod 23 is arranged in the first infusion tube 22; the control assembly provides a supporting effect for the second limiting plate, so that the second limiting plate and the second limiting groove form a fixed fit, the fixing effect of the second limiting plate and the second limiting groove is pushed up, the first infusion tube and the feed opening are conveniently fixed, dye liquor in the liquid storage box smoothly enters the feed opening through the first infusion tube, and the dye liquor in the liquid storage box is prevented from falling into the installation box, so that the waste of the dye liquor and the inconvenience of cleaning the interior of the installation box are avoided; meanwhile, the dye liquor is prevented from directly falling onto the blades from the through cavity to dye the surfaces of the blades, so that the detection effect on the blades is influenced; the control assembly can be controlled by operating the first push rod, so that the connection condition of the second limiting plate and the second limiting groove is controlled; when the liquid storage tank is disassembled, the control assembly loses the supporting effect on the second limiting plate through the first push rod, so that the second limiting plate can be conveniently separated from the second limiting groove; the top of the second limiting plate is of an arc-shaped structure, so that when the liquid storage box is pulled out from the mounting groove, the second limiting plate is disengaged from the second limiting groove, the liquid storage box and the mounting box are conveniently maintained and detected, and the maintenance cost of the device is reduced.

The control assembly comprises a connecting spring 231 arranged at one end of the first push rod 23, a second connecting rod 232 movably connected to the first push rod 23, a second push rod 223 penetrating the bottom of the first movable cavity 222, a third push rod 2210 matched with the second push rod 223, and a baffle 2281 arranged on the second limit plate 228; the two groups of first push rods are respectively arranged at two sides of the side wall of the first infusion tube, the two groups of second connecting rods are respectively hinged at one end of the two groups of first push rods, and the other ends of the two groups of second connecting rods are mutually hinged together; the connecting spring connects the two groups of first push rods together, so that the two groups of first push rods form a whole; a first hydraulic cavity 226 is arranged in the first infusion tube 22, and the third push rod 2210 is arranged in the first hydraulic cavity 226 in a penetrating manner; a second hydraulic cavity 225 is arranged in the first infusion tube 22, a first through hole 227 is arranged on the side wall of the first hydraulic cavity 226, and the first hydraulic cavity 226 is communicated with the second hydraulic cavity 225 through the first through hole 227; the second push rod 223 is arranged in the second hydraulic cavity 225 in a penetrating manner, a first push plate 22101 is arranged at the top of the third push rod 2210, the section of the first push plate is the same as that of the first hydraulic cavity, and a first return spring 2261 is arranged at the top of the first push plate 22101; a fourth push plate 2231 is arranged at the top of the second push rod, a fifth push plate 2232 is arranged at the bottom of the second push rod, the section of the fifth push plate is the same as that of the second hydraulic cavity, and the fourth push plate is matched with the second connecting rod; a second movable cavity 2230 is further arranged in the first infusion tube 22, the baffle 2281 is arranged in the second movable cavity 2230, and the third push rod 2210 is arranged in the second movable cavity 2230 in a penetrating manner and is matched with the baffle 2281; a second reset spring 2281 is arranged in the second movable cavity, one end of the second reset spring is fixedly connected to the inner wall of the second movable cavity, the other end of the second reset spring is fixedly connected to the baffle, the bottom of a third push rod is arranged in the second movable cavity to provide a supporting effect for the baffle, so that the second limiting plate cannot move towards the inside of the first infusion tube, a fifth through hole 2220 is formed in the side wall of the first infusion tube, the second limiting plate can move along the inner wall of the fifth through hole, and the movement stroke of the second limiting plate is limited by the mutual matching of the baffle and the second movable cavity, so that the second limiting plate is prevented from falling out of the fifth through hole; the side wall of the first transfusion pipe is provided with a second liquid inlet hole 221, dye liquor in the liquid storage box enters the first transfusion pipe through the second liquid inlet hole, and the dye liquor in the liquid storage box is convenient to add into the liquid storage cavity.

After the liquid storage tank is placed into the mounting groove, the first liquid conveying pipe penetrates through the second through hole, and the first liquid conveying pipe is positioned through the second through hole, so that the first liquid conveying pipe is ensured to be matched with the feed opening; when the first infusion tube is inserted into the feed opening, the first push rod is pressed into the first infusion tube, so that the control assembly loses the supporting effect on the second limiting plate, the second limiting plate conveniently enters the second limiting groove, and the second limiting groove and the dye liquor in the liquid storage box form fixed fit, so that the dye liquor in the liquid storage box better enters the liquid storage cavity under the action of the first infusion tube, and the position of the first infusion tube and the position of the feed opening are prevented from deviating; under the matching of the third push plate and the first infusion tube, the position of the detection assembly is adjusted through the height adjusting assembly, so that the bottom of the detection assembly is in contact with the surface of the blade, and the effect of detecting the blade is improved; after the detection device finishes the detection of the blade, the first push rod is pressed, the first push rod is pushed into the first infusion tube, the first push rod enters the first movable cavity, the second connecting rod is pushed to rotate around the hinged point, the second connecting rod rotates to move downwards for a certain distance, the second push rod is pushed to move downwards under the action of the second connecting rod, the fifth push plate pushes the oil in the second hydraulic cavity to enter the first hydraulic cavity through the first through hole, the first push plate is pushed to move upwards under the action of oil pressure, the first push plate moves upwards along the first oil pressure cavity, the first push plate compresses the first reset spring to drive the third push rod to move upwards, the bottom of the third push rod is separated from the second movable cavity, the third push rod does not provide a supporting effect on the baffle any more, the liquid storage tank is pulled upwards, the second limiting plate is contacted with the inner wall of the second limiting groove, the second limiting plate moves towards the inner part of the fifth through hole under the action of the top cambered surface of the second limiting plate, the second limiting plate is disengaged from the second limiting groove, so that the liquid storage tank can be conveniently taken out of the mounting groove; after the liquid storage tank is taken out from the mounting groove, under the action of the first return spring and the connecting spring, the first push rod stretches out the first movable cavity again, oil in the first oil cavity enters the first oil cavity under the action of the first return spring, the baffle is located on one side of the second movable cavity under the action of the second return spring, and the third push rod is inserted into the second movable cavity to support the baffle, so that the second limiting plate is restored to a just starting state.

Two sides of the installation box 1 are respectively provided with two groups of guide assemblies, the two groups of guide devices are respectively arranged on the side walls of the two sides of the installation box, the bottom of each guide assembly is provided with a power assembly, and the guide assemblies are matched with the blades 7; when the blade is detected, the blade is embedded between the two groups of guide assemblies, the guide assemblies play a role in fixing the detection device, so that the detection device is fixed on the surface of the blade, after the device to be detected is fixed, the height of the detection assembly is adjusted through the height adjusting assembly, so that the roller is in contact with the surface of the blade, and the surface part of the blade is detected through the action of the roller; the two groups of guide assemblies are positioned on the same horizontal plane, so that the detection device is positioned on the horizontal plane after being fixed, and the detection effect of the detection device on the blade is prevented from being influenced by the inclination of the detection device; the power assembly can drive the detection device to move, so that the detection device can move along the surface of the blade after being fixed on the blade, the detection device can detect the positive blade when moving, the detection effect on the blade is improved, and the dead angle which is not detected is avoided.

The guide assembly comprises a first guide rod 4 arranged on the side wall of the installation box 1, a fourth connecting block 41 arranged on the first guide rod 4 in a penetrating mode, an eighth limiting plate 43 arranged on the first guide rod 4 and a first fixing spring 42 sleeved on the first guide rod 4, wherein the fourth connecting block can move along the first guide rod; when detecting the blade, adorn the blade between two sets of direction subassemblies, push two sets of fourth connecting blocks toward the both sides motion under the effect of blade, make first fixed spring atress shrink, first fixed spring produces the elastic force effect to the fourth connecting block, promote the trend that the fourth connecting block produced toward blade one side motion, make the fourth connecting block play clamping effect to the blade, with the blade centre gripping between two sets of fourth connecting blocks, thereby fix detection device on the blade, the detection device of being convenient for detects the blade.

A first magnetic block 411 is arranged on the side wall of the fourth connecting block 41, and a second magnetic block 15 matched with the first magnetic block 411 is arranged on the side wall of the mounting box 1; a guide block 412 is arranged at the bottom of the fourth connecting block 41, and an arc-shaped groove is formed in the guide block 412; the magnetic force of the first magnetic block and the magnetic force of the second magnetic block attract each other; when the detection device is not arranged on the blade, the first magnetic block and the second magnetic block are in a contact state; when the blade is clamped between the fourth connecting blocks, the first magnetic block and the second magnetic block are separated from each other under the action of the blade, the fourth connecting block tends to move towards one side of the blade under the action of the magnetic force of the magnetic blocks and the elastic force of the first fixing spring, the clamping effect of the fourth connecting block on the blade is increased, the fixing effect of the fourth connecting block and the blade is increased, the detection device is effectively fixed on the blade, and the detection effect on the blade is improved; the diameter of arc recess is greater than blade lateral wall diameter, when the fourth connecting block matches with the blade, the embedding of blade lateral wall is in the arc recess, increase the area of contact of blade and fourth connecting block through the guide block, thereby promote the fixed effect of fourth connecting block to the blade, the blade embedding can't produce the removal easily in the second recess, promote blade and detection device's cooperation effect, provide a steady operational environment for detection device's detection achievement, promote detection device to the detection effect of blade.

The bottom of the guide block 412 is provided with a fifth connecting block 413, and the power assembly comprises a fixing plate 5 arranged at the bottom of the fifth connecting block 413, a driving motor 51 arranged on the fixing plate 5 and a driving wheel 52 arranged on an output shaft of the driving motor 51; the surface of the fixed plate 5 is provided with a second groove 53, and the driving wheel 52 is arranged in the second groove 53; the rubber sleeve is sleeved on the driving wheel, the friction force between the driving wheel and the surface of the blade is increased through the rubber sleeve, and meanwhile, the blade is protected through the rubber sleeve, so that the influence on the surface of the blade when the driving wheel is in contact with the blade is avoided; a third groove is formed in the fixing plate, the driving motor is arranged in the third groove, and the third groove is communicated with the second groove; the top of the driving wheel is higher than that of the driving motor; after the guide assembly fixes the detection device, the fixed plate is contacted with the bottom surface of the blade, the driving wheel on the fixed plate is contacted with the bottom surface of the blade, the driving wheel is driven to drive under the action of the driving motor, so that the detection device is driven to move by the friction force between the driving wheel and the bottom surface of the blade, the detection device moves along the blade under the action of the driving wheel, the whole blade is detected, the detection dead angle is avoided, and the detection efficiency of the blade is improved; the blade is detected by the driving detection device, so that the blade is prevented from moving, and the blade is more convenient to detect.

A fifth connecting rod 54 is arranged on the fixed plate 5, a fifth movable cavity 4131 is arranged in the fifth connecting block 413, and the fifth connecting rod 54 is arranged in the fifth movable cavity 4131 in a penetrating manner; a ninth limiting plate 541 is arranged at the top of the fifth connecting rod 4131, and a second fixing spring 542 is sleeved on the fifth connecting rod 4131; the top of the second fixed spring is in contact with the ninth limiting plate, the bottom of the second fixed spring is in contact with the bottom of the fifth movable cavity, the fixed plate is supported by the second fixed spring to be in contact with the fifth connecting block, and when the detection device is not installed on the blade, the ninth limiting plate is located at the top of the fifth movable cavity to be in contact with the bottom of the fifth connecting block; when packing into detection device on the blade, the direction subassembly plays fixed effect back to the blade, the fixed plate moves down under the effect of blade, make ninth limiting plate move down along fifth activity chamber, make second fixed spring be in compression state, produce the elastic force effect to the ninth limiting plate through second fixed spring, make the ninth limiting plate produce the trend of up-moving, it produces the trend of up-moving to drive the fixed plate, make the fixed plate press from both sides tight blade bottom surface, play good fixed action to the blade bottom surface, increase drive wheel and blade bottom surface contact effect, thereby increase the frictional force of drive wheel and blade bottom surface, be convenient for the drive wheel to drive detection device and remove.

The fourth connecting block 41 is provided with a sixth connecting block 44, the fourth connecting block 41 is connected with the guide block 412 through the sixth connecting block 44, the guide block 412 is provided with seventh connecting blocks 4121, two seventh connecting blocks are respectively arranged on two sides of the top of the guide block, the sixth connecting block 44 is provided with sixth movable cavities 441, and two groups of sixth movable cavities are respectively arranged on two sides of the sixth connecting block; the seventh connecting block 4121 is arranged in the sixth movable cavity 441 in a penetrating manner, and the seventh connecting block can move in the sixth movable cavity; the seventh connecting block 4121 is provided with a second guide rod 45, the second guide rod is provided with an eighth connecting block 452, the second guide rod is connected with the seventh connecting block through the eighth connecting block, the second guide rod 45 is provided with a seventh movable cavity 451, a sixth connecting rod 46 penetrates through the seventh movable cavity 451, the two ends of the sixth connecting rod 46 are respectively provided with a tenth limiting plate 461, and the sixth connecting rod 46 is sleeved with a third fixing spring 462.

When the third fixed spring is in the original length state, the seventh connecting block is positioned on one side of the sixth movable cavity close to the inner part of the installation box; when the detection device is installed on the blade, the blade is embedded into the arc-shaped groove on the early guide block, the seventh connecting block is pushed to move to the other side of the sixth movable cavity under the action of the blade, and meanwhile, the fourth connecting block is pushed to move for a certain distance along the first guide rod, so that the guide block plays a role in clamping the blade, the detection device is fixed on the blade, and the detection device can conveniently detect the blade; when detection device moved along the blade, along with the cross-sectional area reduction of blade, the fourth connecting block moved installation box lateral wall department along the guide bar, first magnetic path and second magnetic path contact, seventh connecting block down the internal motion under the effect of third fixed spring, drive guide block and fixed plate toward the inside motion of installation box, make the blade lateral wall inlay all the time in the arc recess of guide block, fixed on the blade all the time when making detection device's removal, increase detection device job stabilization nature, avoid detection device to drop when removing from the blade and cause the damage to detection device.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (9)

1. The detection device for the blades of the wind driven generator comprises an installation box (1), a liquid storage box (2) arranged in the installation box (1) and a detection assembly arranged below the liquid storage box (2), wherein an installation groove (19) is formed in the top of the installation box (1), the liquid storage box (2) is arranged in the installation groove (19), and the detection assembly is communicated with the liquid storage box (2); an installation cavity (110) is arranged in the installation box (1), the installation cavity (110) is arranged below the installation groove (19), and the detection assembly is arranged in the installation cavity (110); the method is characterized in that: liquid reserve tank (2) both sides are equipped with first limiting plate (25), mounting groove (19) both sides be equipped with respectively with first limiting plate (25) matched with first spacing groove (17), first spacing groove (17) top swing joint has apron (13), be equipped with on apron (13) and be used for the adjustment the altitude mixture control subassembly of determine module position.

2. A wind turbine blade inspection device according to claim 1, wherein: the detection assembly comprises a mounting plate (3) arranged in the mounting cavity (110), a connecting pipe (32) arranged at the bottom of the mounting plate (3), a first connecting rod (33) arranged in the connecting pipe (32), a mounting seat (34) arranged at one end of the first connecting rod (33) and rollers (35) arranged on the mounting seat (34).

3. A wind turbine blade inspection device according to claim 2, wherein: be equipped with stock solution chamber (36) in mounting panel (3), stock solution chamber (36) with liquid reserve tank (2) communicate with each other, wear to be equipped with first transfer line (22) in liquid reserve tank (2), mounting panel (3) top be equipped with first transfer line (22) matched with feed opening (31), be equipped with second limiting plate (228) on first transfer line (22) lateral wall, be equipped with on feed opening (31) lateral wall with second limiting plate (228) matched with second spacing groove (311).

4. A wind turbine blade detection device according to claim 3, wherein: a first movable cavity (222) is arranged at the top of the first infusion tube (22), a first push rod (23) penetrates through the side wall of the first movable cavity (222), and a control assembly matched with the first push rod (23) is arranged in the first infusion tube (22).

5. The inspection device for a blade of a wind power generator as set forth in claim 4, wherein: the control assembly comprises a connecting spring (231) arranged at one end of the first push rod (23), a second connecting rod (232) movably connected to the first push rod (23), a second push rod (223) penetrating the bottom of the first movable cavity (222), a third push rod (2210) matched with the second push rod (223), and a baffle (2281) arranged on the second limiting plate (228); a first hydraulic cavity (226) is arranged in the first infusion tube (22), and the third push rod (2210) is arranged in the first hydraulic cavity (226) in a penetrating manner.

6. An apparatus for testing a wind turbine blade according to claim 5, wherein: a second hydraulic cavity (225) is arranged in the first infusion tube (22), a first through hole (227) is formed in the side wall of the first hydraulic cavity (226), and the first hydraulic cavity (226) is communicated with the second hydraulic cavity (225) through the first through hole (227); the second push rod (223) penetrates through the second hydraulic cavity (225), a first push plate (22101) is arranged at the top of the third push rod (2210), and a first return spring (2261) is arranged at the top of the first push plate (22101); a second movable cavity (2230) is further arranged in the first infusion tube (22), the baffle (2281) is arranged in the second movable cavity (2230), and the third push rod (2210) is arranged in the second movable cavity (2230) in a penetrating way to be matched with the baffle (2281).

7. A wind turbine blade inspection device according to claim 1, wherein: be equipped with screw hole (133) on apron (13), height adjusting part is including wearing to locate fixing bolt (11), swing joint in screw hole (133), swing joint in fixed block (16) at install bin (1) top, locate installation piece (132) on apron (13) and locating fixed subassembly on installation piece (132).

8. The inspection device for a blade of a wind power generator as set forth in claim 7, wherein: fixed subassembly include swing joint in third connecting rod (1325) and fourth connecting rod (1326) on installation piece (132) and locate respectively third connecting rod (1325) with fourth limiting plate (1324) and fifth limiting plate on fourth connecting rod (1326), be equipped with first recess (1321) on installation piece (132), be equipped with spacing spring (1322) in first recess (1321), spacing spring (1322) both ends respectively with third connecting rod (1325) with fourth connecting rod (1326) contacts.

9. A wind turbine blade detection apparatus according to claim 8, wherein: a support spring (173) is arranged in the first limiting groove (17), a third hydraulic cavity (18) is arranged below the first limiting groove (17), a hydraulic cylinder (14) is arranged on the side wall of the installation box (1), and a piston rod of the hydraulic cylinder (14) penetrates through the third hydraulic cavity (18); and a fourth hydraulic cavity (171) communicated with the third hydraulic cavity (18) is arranged at the bottom of the first limiting groove (17), and a push block (172) is arranged in the fourth hydraulic cavity (171).