Test device for engineering wind turbine after assembly

Abstract

The present invention discloses a test device for an engineering wind engine after assembly, and relates to the technical field of wind engine test equipment, including: a base includes a main support column, the base is a cross-shaped structure as a whole, and two vertically supported electric push rods are symmetrically locked and installed in the middle position, and a main support column is welded to the center position of the base, and a support seat is welded and fixed to the top of the main support column, and the wind engine with the test is placed on the top of the support seat; the base also includes a vertical support shaft and a track ring, and the head ends of the four ground-contacting support rods of the base are symmetrically welded with four vertical support shafts, and the top ends of the four vertical support shafts are horizontally welded with a track ring with a cross-shaped cross section. The axial flow fan of the present invention can rotate along the track ring to blow 360° around the wind engine, test the guiding function of the wind guide plate at the tail end of the wind engine, and solve the problem of incomplete functions of traditional test equipment that only focuses on testing the rotation function of the engine.

Description

Technical Field

[0001] The invention relates to the technical field of wind engine testing equipment, in particular to a testing device used for assembled engineering wind engines. Background Art

[0002] To ensure the quality of wind turbines before they are assembled and shipped out of the factory, various functions must be tested, which requires the use of testing equipment used for engineering wind turbines after assembly.

[0003] The design of the test components of the existing test equipment is not perfect. Most of them can only test the rotation function of the wind engine, but cannot test the guiding function of the wind guide component. The test function is not complete enough, and the design of the fixed installation components of the test equipment is not reasonable. Most of them use multiple threaded parts to lock and fix the wind engine, which makes disassembly more cumbersome. In addition, due to the lack of auxiliary balance support components, when replacing and installing the wind engine, it is necessary to manually support the wind engine for a long time to maintain its balance, and the operation is more troublesome and laborious. Summary of the invention

[0004] In view of this, the present invention provides a testing device for an engineering wind engine after assembly, which has an axial flow fan. The axial flow fan can rotate along an orbital circle to blow air around the wind engine 360° to test the guiding function of the wind guide plate at the rear end of the wind engine.

[0005] The present invention provides the following technical solutions: a test device for an engineering wind turbine after assembly, comprising a base; the base comprises a main support column, the base is a cross-shaped structure as a whole, and two vertically supported electric push rods are symmetrically locked and installed in the middle position, and a main support column is vertically welded to the center position of the base, and a support seat is welded and fixed to the top of the main support column, and the wind turbine under test is placed on the top of the support seat; the base also comprises a vertical support shaft and a track ring, four vertical support shafts are symmetrically welded to the head ends of the four ground-contacting support rods of the base, and a track ring with a cross-shaped cross-section is horizontally welded to the top of the four vertical support shafts, and an axial flow fan is slidably installed on the track ring; the support seat also comprises a vertical positioning shaft, and the bottom position of the head end of the L-shaped sliding rod is welded A positioning ring is fixed, and a vertical positioning shaft slides through the positioning ring; a pressure plate, a pressure plate is welded on the top of the vertical positioning shaft, and wiping strips are arranged at equal intervals on the bottom of the pressure plate, and the tail end of the pull rod is rotatably connected to the pressure plate; a sliding assembly is slidably sleeved on the top section of the main support column, and the sliding assembly as a whole is composed of a central slip ring and two convex support plates symmetrically welded on the slip ring; the sliding assembly includes a connecting rod, and six connecting rods are rotatably installed on the outer ring of the circumference of the central slip ring of the sliding assembly, and the other ends of the six connecting rods are rotatably connected to the tail ends of the six L-shaped sliding rods; the two convex support rods on the sliding assembly are extended and inserted through the two force frames, and a spacing is maintained between the two convex support rods and the bottom support plates of the two force frames.

[0006] Preferably, the base also includes an F-shaped support member, and four inverted F-shaped support members are symmetrically welded on the top sections of the vertical support shafts, and the F-shaped support members provide convenience for the installation of the gear ring and two metal power connection rings; the gear ring, a gear ring is horizontally welded on the top of the four F-shaped support members; the metal power connection ring, the inner head ends of the two horizontal support plates at the bottom of the four F-shaped support members are horizontally supported by inner and outer ring sleeves and are provided with two metal power connection rings.

[0007] Preferably, the axial flow fan includes a sliding block, two rectangular sliding blocks are symmetrically welded on the bottom of the circular shell of the axial flow fan, and the two sliding blocks correspond to the track ring for sliding cooperation; a power connection copper block, two power connection copper blocks are locked and installed on the bottom of the sliding block at the left position, the two power connection copper blocks correspond to the two metal power connection rings for sliding cooperation, and the two power connection copper blocks are electrically connected to the axial flow fan, the two power connection copper blocks follow the rotation of the axial flow fan and slide with the two metal power connection rings, which can ensure the continuous supply of electricity when the axial flow fan rotates along the track ring to supply air and avoid power failure of the axial flow fan; the axial flow fan also includes a reducer, a reducer is supported and installed at the center position of the rear end opening of the circular shell of the axial flow fan, and the reducer is connected to the rotating shaft of the axial flow fan for transmission; a toothless gear, a toothless gear is mounted on the rear end of the reducer, and the toothless gear corresponds to the gear ring for meshing transmission.

[0008] Preferably, the support seat includes an F-shaped mounting part, and the support seat as a whole is composed of a central circular support plate, six ear blocks welded around the outer ring of the support plate, and six F-shaped mounting parts welded together, and the six F-shaped mounting parts and the six ear blocks are spaced and staggered with each other; a support ring, a support ring is slidably mounted on the six ear blocks, and six suspension shafts are vertically welded around the bottom of the support ring, and the six suspension shafts are matched with the six ear blocks through spring pushing, and when the support ring slides down and separates from the bottom mounting seat and slides down to contact the support seat, the L-shaped sliding rods that slide inward to the middle stroke can temporarily block and limit the bottom mounting seat of the wind engine to prevent the wind engine from falling from the support seat.

[0009] Preferably, the support seat also includes an L-shaped sliding rod, and six L-shaped sliding rods are slidably passed through the six vertical support rod sections of the F-shaped mounting parts; a force frame, and two rectangular force frames are symmetrically welded at the bottom of the two hanging shafts near the two electric push rod positions.

[0010] Preferably, the support seat also includes a sliding part, a strip slide groove is opened through the front half of the horizontal rod section of the L-shaped slide rod, two support blocks are welded at intervals inside the strip slide groove, a sliding part is inserted through the two support blocks by spring pushing, and the sliding part as a whole is composed of two longitudinal sliding shafts and transverse short rods welded to the head ends of the two longitudinal sliding shafts, and the support seat provides convenience for the support and placement of the wind turbine; a pull rod, a pull rod is rotatably installed on the middle section of the transverse short rod of the sliding part.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The axial flow fan of the present invention can rotate along the track circle to blow air around the wind engine 360°, test the guiding function of the wind guide plate at the tail end of the wind engine, and detect whether the wind engine can swing and adjust the windward direction according to the change of wind direction. Compared with the traditional test equipment that only focuses on testing the rotation function of the engine, the test function is more complete;

[0013] 2. The present invention uses the reduction transmission of the reducer, and the toothless gear can mesh with the gear ring at a slower speed to drive the axial flow fan to rotate intermittently, so that the axial flow fan intermittently moves around along the track circle to change the air supply angle to the wind engine. Moreover, through the power transmission of the toothless gear, the axial flow fan can be driven by the driving motor of its internal wind wheel to intermittently move around along the track circle, which saves the need for an additional motor for the axial flow fan to move around, and helps to reduce the overall weight, power consumption and cost of the test device;

[0014] 3. The support ring of the present invention can temporarily support the wind engine horizontally through the spring push support, so as to prevent the wind engine from being directly placed on the support seat without balance support and falling from the support seat due to uneven gravity distribution of internal components, thereby eliminating the trouble of manual long-term support and balance maintenance for the wind engine when it is pressed and fixed, and is convenient and labor-saving to use;

[0015] 4. In the present invention, when the support ring and the wind engine slide down and separate, and the bottom mounting seat and the support seat slide down and come into contact, the L-shaped slide bar that slides inward to the middle of the stroke can temporarily block and limit the bottom mounting seat of the wind engine to prevent the wind engine from falling from the support seat;

[0016] 5. The two springs on the sliding part of the present invention can push the pressure plate to a position close to the bottom of the L-shaped sliding rod when the L-shaped sliding rod is not in contact with the support column at the bottom of the wind turbine, so as to avoid the pressure plate in a hanging state causing obstruction to the inner sliding block of the L-shaped sliding rod, and when the sliding part is separated from the support column at the bottom of the wind turbine, the two springs on it can automatically rebound and push the pressure plate to slide up and reset;

[0017] 6. The six connecting rods, six sliding parts and sliding components of the present invention are connected together to form a six-crank sliding rod mechanism. Through this mechanism, two electric push rods can drive the sliding component to slide down and pull the six sliding parts to slide synchronously inward to implement the insertion and compression positioning of the wind engine. Compared with the traditional test device that uses multiple threaded parts for locking and fixing, the present invention can save the trouble of screwing and disassembling the threaded parts step by step when replacing the wind engine, and the disassembly efficiency is higher;

[0018] 7. When the sliding assembly of the present invention slides down to drive the L-shaped slide bar to slide inside, it can also press down the two force frames and the support ring in a linked manner to separate the support ring from the belly of the wind engine, thereby avoiding the friction obstacle caused by the support ring to the steering of the wind engine. The power transmission through the two force frames can save the trouble of additional manual operation to slide down and separate the support ring, which is easy and convenient to use. In addition, the sliding time difference caused by the distance between the two protruding support rods and the two force frames can ensure that the support ring begins to separate from the wind engine only when the six L-shaped slide bars are inserted into the top of the bottom mounting seat of the wind engine, thereby avoiding the support ring from being separated from the wind engine too early, causing swinging and displacement, and cannot be normally pressed and positioned. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the sliding installation of the axial flow fan of the present invention;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the bottom of the present invention;

[0022] Figure 4 It is a schematic diagram of the track ring structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the bottom structure of the base of the present invention;

[0024] Figure 6 This is a schematic diagram of the installation test state of the wind turbine of the present invention;

[0025] Figure 7 It is a left side view of the support base of the present invention;

[0026] Figure 8 This is a schematic diagram of the three-dimensional structure of the support seat of the present invention;

[0027] Fig. 9 It is a schematic diagram of the structure of the sliding assembly of the present invention;

[0028] Fig.10 This is a schematic diagram of the L-shaped sliding rod structure of the present invention;

[0029] Fig.11 For the present invention Figure 5 A schematic diagram of the enlarged structure of part A.

[0030] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0031] 1. Base; 101. Vertical support shaft; 102. F-shaped support member; 103. Gear ring; 104. Metal power connection ring; 105. Main support column; 106. Track ring; 2. Axial flow fan; 201. Sliding block; 202. Power connection copper block; 203. Speed ​​reducer; 204. Toothless gear; 3. Electric push rod; 4. Support seat; 401. Support ring; 402. F-shaped mounting member; 403. L-shaped sliding rod; 404. Force frame; 405. Sliding part; 406. Pull rod; 407. Vertical positioning shaft; 408. Pressure plate; 5. Sliding assembly; 501. Connecting rod. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] See also Figures 1 to 11 ;

[0034] The present invention proposes a test device for an engineering wind turbine after assembly, comprising: a base 1; the base 1 comprises a main support column 105, the base 1 is a cross-shaped structure as a whole, two electric push rods 3 for vertical support are symmetrically locked and installed in the middle position, and a main support column 105 is vertically welded at the center position of the base 1, a support seat 4 is welded and fixed at the top end of the main support column 105, and the wind turbine under test is placed on the top end of the support seat 4; the base 1 also comprises an F-shaped support member 102, four inverted F-shaped support members 102 are symmetrically welded on the top end sections of four vertical support shafts 101; a gear ring 103, a gear ring 103 is horizontally welded at the top end of four F-shaped support members 102; a metal power connection ring 104, two metal power connection rings 104 are arranged at the inner head end positions of two horizontal support plates at the bottom of the four F-shaped support members 102 in the form of inner and outer ring sleeves for horizontal support;

[0035] The base 1 also includes a vertical support shaft 101 and a track ring 106. The head ends of the four ground-contacting support rods of the base 1 are symmetrically welded with four vertical support shafts 101. The top ends of the four vertical support shafts 101 are horizontally welded with a track ring 106 with a cross-shaped cross-section, and the track ring 106 is slidably installed with an axial flow fan 2; the support seat 4 also includes an L-shaped slide bar 403, and six L-shaped slide bars 403 are slidably penetrated on the vertical support rod sections of six F-shaped mounting parts 402; a force frame 404, two rectangular force frames 404 are symmetrically welded at the bottom of the two hanging shafts near the two electric push rods 3; a sliding assembly 5 is slidably sleeved on the top section of the main support column 105, and the sliding assembly 5 as a whole is composed of a central slip ring and two convex support plates symmetrically welded on the slip ring; the support seat 4 also includes A vertical positioning shaft 407, a positioning ring is welded and fixed at the bottom position of the head end of the L-shaped slide bar 403, and a vertical positioning shaft 407 slides through the positioning ring; a pressure plate 408, a pressure plate 408 is welded on the top of the vertical positioning shaft 407, and wiping strips are arranged at equal intervals at the bottom of the pressure plate 408, and the tail end of the pull rod 406 is rotatably connected to the pressure plate 408, and the pull rod 406, the pressure plate 408 and the sliding part 405 are connected together to form a crank slider mechanism. Through these six mechanisms, when the six sliding parts 405 follow the six L-shaped slide bars 403 to slide inward and come into contact with the support column at the bottom of the wind engine, the six pressure plates 408 can be synchronously pushed down and pressed into contact with the mounting seat at the bottom of the wind engine, so that the wind engine is pressed and fixed on the support seat 4.

[0036] like Figure 2As shown, the axial flow fan 2 includes a sliding block 201, and two rectangular sliding blocks 201 are symmetrically welded on the bottom of the circular shell of the axial flow fan 2. The two sliding blocks 201 correspond to the track ring 106 for sliding cooperation. The axial flow fan 2 can rotate along the track ring 106 to blow air around the wind engine 360°, test the guiding function of the wind guide plate at the tail end of the wind engine, and detect whether the wind engine can swing and adjust the windward direction with the change of wind direction. Compared with the traditional test equipment that only focuses on testing the rotation function of the engine, the test function is more complete; the power-connecting copper block 202, the bottom of the sliding block 201 at the left position is locked with two power-connecting copper blocks 202, the two power-connecting copper blocks 202 correspond to the two metal power-connecting rings 104 for sliding cooperation, and the two power-connecting copper blocks 202 are electrically connected to the axial flow fan 2.

[0037] like Figure 3 to Figure 4 As shown, the axial flow fan 2 also includes a reducer 203, and a reducer 203 is supported and installed at the center position of the rear end opening of the circular shell of the axial flow fan 2, and the reducer 203 is connected to the rotating shaft of the axial flow fan 2 for transmission; a toothless gear 204, a toothless gear 204 is mounted on the rear end of the reducer 203, and the toothless gear 204 is meshed with the gear ring 103 for transmission. Through the reduction transmission of the reducer 203, the toothless gear 204 can mesh with the gear ring 103 at a slower speed, and the axial flow fan 2 is driven to rotate intermittently, so that the axial flow fan 2 intermittently moves around along the track circle 106 to change the air supply angle of the wind engine, and through the power transmission of the toothless gear 204, the axial flow fan 2 can be driven to move intermittently around along the track circle 106 by the driving motor of its internal wind wheel, which saves the need for an additional motor for the axial flow fan 2 to move around, which helps to reduce the overall weight, power consumption and cost of the test device.

[0038] like Figure 6 As shown, the support seat 4 includes an F-shaped mounting member 402, and the support seat 4 as a whole is composed of a central circular support plate, six ear blocks welded around the outer ring of the support plate, and six F-shaped mounting members 402 welded together, and the six F-shaped mounting members 402 and the six ear blocks are spaced and staggered with each other; a support ring 401, a support ring 401 is slidably mounted on the six ear blocks, and six suspension shafts are vertically welded around the bottom of the support ring 401, and the six suspension shafts are matched with the six ear blocks through spring pushing, and the six ear blocks provide convenience for the sliding installation of the support ring 401, and the support ring 401 can temporarily support the wind engine horizontally through the spring pushing support, so as to avoid the wind engine being placed directly on the support seat 4 without balance support and falling from the support seat 4 due to uneven gravity distribution of internal components, thereby eliminating the trouble of personnel manually supporting and maintaining balance for a long time when pressing and fixing the wind engine, and it is convenient and labor-saving to use.

[0039] like Figure 2As shown, the support seat 4 also includes a sliding portion 405, a strip slide groove is penetrated on the front half of the horizontal rod section of the L-shaped slide bar 403, and two support blocks are welded at intervals inside the strip slide groove. A sliding portion 405 is inserted and inserted on the two support blocks through spring pushing, and the sliding portion 405 as a whole is composed of two longitudinal sliding shafts and transverse short rods welded to the head ends of the two longitudinal sliding shafts. The two springs on the sliding portion 405 can push the pressure plate 408 to be in a state of being close to the bottom of the L-shaped slide bar 403 when the L-shaped slide bar 403 is not in contact with the support column at the bottom of the wind engine, so as to avoid the pressure plate 408 in a hanging state causing obstruction to the inner sliding insertion of the L-shaped slide bar 403, and when the sliding portion 405 is separated from the support column at the bottom of the wind engine, the two springs on it can automatically rebound and push the pressure plate 408 to slide back to reset; a pull rod 406, a pull rod 406 is rotatably installed on the middle section of the transverse short rod of the sliding portion 405.

[0040] like Figure 8 As shown, the sliding assembly 5 includes a connecting rod 501, and six connecting rods 501 are rotatably installed on the circumferential outer ring of the central slip ring of the sliding assembly 5. The other ends of the six connecting rods 501 are rotatably connected to the tail ends of the six L-shaped sliding rods 403. The six connecting rods 501, the six sliding parts 405 and the sliding assembly 5 are connected together to form a six-crank sliding rod mechanism. Through this mechanism, the two electric push rods 3 can drive the sliding assembly 5 to slide down and pull the six sliding parts 405 to slide inward synchronously to implement the gear insertion and compression positioning of the wind engine. Compared with the traditional test device that uses multiple threaded parts for locking and fixing, the present invention can save the trouble of screwing and disassembling the threaded parts step by step when replacing the wind engine, and the disassembly efficiency is higher.

[0041] like Fig. 9 As shown, the two protruding support rods on the sliding component 5 extend and penetrate through the two force frames 404, and a spacing is maintained between the two protruding support rods and the bottom support plates of the two force frames 404. When the sliding component 5 slides down to drive the L-shaped sliding rod 403 to slide inward, it can also press down the two force frames 404 and the supporting ring 401 in a linked manner to separate the supporting ring 401 from the belly of the wind engine, thereby avoiding the supporting ring 401 from causing friction obstacles to the steering of the wind engine, and the power transmission through the two force frames 404 can save the trouble of additional manual operation of sliding down and separating the supporting ring 401, which is easy and convenient to use. In addition, the sliding time difference caused by the spacing between the two protruding support rods and the two force frames 404 can ensure that the supporting ring 401 begins to separate from the wind engine only when the six L-shaped sliding rods 403 are inserted into the top of the bottom mounting seat of the wind engine, thereby avoiding the supporting ring 401 from being separated from the wind engine too early, causing swinging and displacement, and cannot be normally pressed and positioned.

[0042] Working principle: When in use, first place the wind engine on the support ring 401. At this time, there is a gap between the bottom mounting seat of the wind engine and the support seat 4. Then start the two electric push rods 3, so that the two electric push rods 3 drive the sliding assembly 5 to slide down and pull and drive the six sliding parts 405 to slide inward synchronously and insert at the top of the bottom mounting seat of the wind engine. The pull rod 406, the pressure plate 408 and the sliding part 405 are connected together to form a crank slider mechanism. Through this six-point mechanism, when the six sliding parts 405 are connected with the As the six L-shaped slide bars 403 slide inwards and come into contact with the support column at the bottom of the wind engine, the six pressure plates 408 can be pushed down synchronously to come into contact with the mounting seat at the bottom of the wind engine, thereby pressing and fixing the wind engine on the support seat 4. When the sliding assembly 5 slides down to drive the L-shaped slide bar 403 to slide inwards, it can also press and slide the two force frames 404 and the support ring 401 downwards, so that the support ring 401 is separated from the belly of the wind engine, thereby preventing the support ring 401 from causing friction obstacles to the steering of the wind engine;

[0043] Then, the axial flow fan 2 is started, and through the reduction transmission of the reducer 203, the toothless gear 204 can engage with the gear ring 103 at a slower speed, and the axial flow fan 2 is driven to rotate intermittently, so that the axial flow fan 2 intermittently moves around along the track ring 106 to change the air supply angle to the wind motor, and detect whether the wind motor can swing and adjust the windward direction according to the change of wind direction.

[0044] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A test device for wind turbines after assembly, characterized in that: Wind turbine test equipment, including A base (1); the base (1) comprises a main support column (105); the base (1) is in a cross-shaped structure as a whole, and two vertically supported electric push rods (3) are symmetrically locked and installed in the middle position thereof; a main support column (105) is vertically welded at the center position of the base (1); a support seat (4) is welded and fixed at the top end of the main support column (105); and a wind turbine to be tested is placed at the top end of the support seat (4); The base (1) further comprises a vertical support shaft (101) and a track ring (106); the head ends of the four ground-contacting support rods of the base (1) are symmetrically welded with four vertical support shafts (101); the top ends of the four vertical support shafts (101) are horizontally welded with a track ring (106) having a cross-shaped cross section; and an axial flow fan (2) is slidably mounted on the track ring (106); A sliding assembly (5) is slidably mounted on the top end of the main support column (105), and the sliding assembly (5) is composed of a central sliding ring and two convex supporting plates symmetrically welded to the sliding ring; The support seat (4) comprises: an F-shaped mounting member (402), the support seat (4) as a whole is composed of a central circular support plate, six ear blocks welded around the outer circumference of the support plate, and six F-shaped mounting members (402) welded together, and the six F-shaped mounting members (402) and the six ear blocks are spaced and staggered with each other; A supporting ring (401) is slidably mounted on the six ear blocks, and six hanging shafts are welded around the bottom of the supporting ring (401) and the six hanging shafts are pushed by springs to penetrate and cooperate with the six ear blocks; L-shaped sliding rods (403), six L-shaped sliding rods (403) slidingly penetrate the vertical support rod sections of the six F-shaped mounting members (402); A force-bearing frame (404), wherein two rectangular force-bearing frames (404) are symmetrically welded at the bottom of two suspension shafts near the positions of the two electric push rods (3); When the sliding assembly (5) slides downward to drive the L-shaped sliding rod (403) to slide inside, it can also press the two force frames (404) and the supporting ring (401) downward in a linked manner, so that the supporting ring (401) is separated from the belly of the wind turbine, thereby preventing the supporting ring (401) from causing friction obstacles to the steering of the wind turbine.

2. The test device for an engineering wind turbine after assembly according to claim 1 is characterized in that: The base (1) also includes F-shaped support members (102), four inverted F-shaped support members (102) are symmetrically welded on the top end sections of the four vertical support shafts (101); A gear ring (103), a gear ring (103) is horizontally welded to the top of the four F-shaped support members (102); The metal power connection ring (104) is provided with two metal power connection rings (104) at the inner head ends of the two horizontal support plates at the bottom of the four F-shaped support members (102) in the form of inner and outer ring sleeves for horizontal support.

3. The test device for an engineering wind turbine after assembly according to claim 1 is characterized in that: The axial flow fan (2) comprises Sliding blocks (201), two rectangular sliding blocks (201) are symmetrically welded to the bottom of the circular housing of the axial flow fan (2), and the two sliding blocks (201) are correspondingly slidably matched with the track ring (106); The power connection copper block (202) has two power connection copper blocks (202) locked and installed at the bottom of the sliding block (201) at the left position. The two power connection copper blocks (202) are slidably matched with the two metal power connection rings (104) respectively, and the two power connection copper blocks (202) are electrically connected to the axial flow fan (2).

4. The test device for an engineering wind turbine after assembly according to claim 3 is characterized in that: The axial flow fan (2) also includes A reducer (203), a reducer (203) is supported and installed at the center of the rear end opening of the circular shell of the axial flow fan (2), and the reducer (203) is axially connected to the rotating shaft of the axial flow fan (2) for transmission; A toothless gear (204) is provided at the rear end of the speed reducer (203), and the toothless gear (204) is meshed with the gear ring (103) for transmission.

5. The test device for wind turbine assembly according to claim 4 is characterized in that: The support seat (4) also includes: The sliding part (405) is provided with a strip-shaped sliding groove on the front half of the horizontal rod section of the L-shaped sliding rod (403), two support blocks are welded inside the strip-shaped sliding groove at intervals, a sliding part (405) is inserted and inserted through the two support blocks through spring pushing, and the sliding part (405) is composed of two longitudinal sliding shafts and transverse short rods welded to the head ends of the two longitudinal sliding shafts; A pull rod (406) is rotatably mounted on the middle section of the short horizontal rod of the sliding part (405).

6. The test device for an engineering wind turbine after assembly according to claim 5 is characterized in that: The support seat (4) also includes A vertical positioning shaft (407), a positioning ring is welded and fixed at the bottom of the head end of the L-shaped sliding rod (403), and a vertical positioning shaft (407) is slidably passed through the positioning ring; A pressing plate (408) is welded on the top of the vertical positioning shaft (407), and wiping strips are arranged at equal intervals on the bottom of the pressing plate (408), and the tail end of the pull rod (406) is rotatably connected to the pressing plate (408).

7. The test device for an engineering wind turbine after assembly according to claim 1 is characterized in that: The sliding assembly (5) comprises a connecting rod (501), and six connecting rods (501) are rotatably mounted on the outer circumference of the central sliding ring of the sliding assembly (5), and the other ends of the six connecting rods (501) are rotatably connected to the tail ends of the six L-shaped sliding rods (403).

8. The test device for an engineering wind turbine after assembly according to claim 1 is characterized in that: The two outwardly protruding support rods on the sliding assembly (5) are inserted through the two force-bearing frames (404), and a distance is maintained between the two outwardly protruding support rods and the bottom support plates of the two force-bearing frames (404).

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