Special equipment for machining inclined hole in yaw surface of wind driven generator rack

Abstract

The invention relates to the technical field of machining, in particular to special equipment for machining an inclined hole in a yaw surface of a rack of a wind driven generator, which comprises a base, an outer case and a vertical pile which are arranged on the base, a retention seat and a lateral clamping and propping mechanism which are arranged on the outer case, the lateral clamping and abutting mechanism is located on the periphery of the retention base, the punching part is arranged on the vertical pile column, the feeding position and the feeding angle during machining can be flexibly changed, and therefore the position and the angle of an inclined hole finally machined in the machine frame are changed. Therefore, different inclined hole machining schemes can be obtained through quick adjustment when the model, the specification and the corresponding yaw surface of the rack are changed, and the production and machining flexibility is ensured, so that the production cost is controlled, and the machining period is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, and in particular to a special device for processing inclined holes on a yaw surface of a wind turbine frame. Background Art

[0002] As the global demand for renewable energy grows, wind energy, as an important clean energy, plays an increasingly important role in the transformation of energy structure. As the main equipment for wind energy utilization, the performance of wind turbines directly affects the wind energy conversion efficiency and power generation. In the entire wind turbine, the frame is an important component that supports the entire wind turbine structure, and the yaw system on the frame is a key device to ensure that the wind rotor can accurately align with the wind direction. The main function of the yaw system is to quickly and smoothly align the wind direction so that the wind rotor can obtain the maximum wind energy. When the direction of the wind speed vector changes, the yaw system can quickly adjust the direction of the wind turbine so that the wind rotor is always aligned with the wind direction, thereby maximizing the capture of wind energy to improve the power generation efficiency and reliability of the wind turbine.

[0003] In the manufacturing process of wind turbine frames, the precise processing of the yaw surface is particularly important. The yaw surface refers to the surface of the wind turbine used to adjust the direction to face the wind direction. Usually, a certain number of threaded holes need to be processed on this surface to fix the key components of the yaw system. For example, the utility model patent with publication number CN202192293U points out that the yaw surface of the main frame component of the wind turbine needs to be processed with 36 M20 threaded holes, and these holes need to be precisely arranged in a circle with equal divisions.

[0004] However, traditional processing methods, such as using general CNC machine tools for processing, have many shortcomings. First, due to the limitations of their own positioning fixtures and single processing direction, general machine tools may find it difficult to meet the special angle requirements of the hole position, especially when the hole needs to be tilted at a certain angle to better match other components in the yaw system. Secondly, as the processing proceeds, the position of the frame needs to be adjusted multiple times to complete the processing of all holes. However, the frame of a wind turbine is generally heavy, and manual adjustment by processing personnel is not only slow and inefficient, but also prone to safety accidents, and it is very easy to have deviations, resulting in the processed holes not meeting the established requirements. In addition, the yaw surfaces on wind turbine frames of different models and specifications are different, so different inclined hole processing solutions are required. Traditional methods are difficult to quickly adapt to these changes, and the lack of flexibility in production and processing methods increases production costs and cycles. Summary of the invention

[0005] The purpose of the present invention is to provide a special device for processing inclined holes on the yaw surface of a wind turbine frame to solve the above-mentioned problem.

[0006] In order to achieve the above-mentioned object, the present invention provides a special device for processing oblique holes on the yaw surface of a wind turbine frame, comprising: a base, an outer box and a vertical pile column arranged on the base, and the vertical pile column is close to one side of the outer box, a retaining seat and a lateral clamping mechanism arranged on the outer box, and the lateral clamping mechanism is located at the periphery of the retaining seat, and a punching part arranged on the vertical pile column;

[0007] The end of the punching portion faces the retaining seat obliquely, wherein:

[0008] After the peripheral rack is placed on the retaining seat, the retaining seat will sink adaptively at multiple points to match the contour of the peripheral rack;

[0009] The lateral clamping mechanisms are driven to move toward the external device rack respectively, until the two sides of the external device rack are clamped to stop the external device rack;

[0010] The drilling portion is suitable for continuously drilling obliquely toward the external machine frame to machine an oblique hole on the external machine frame;

[0011] The punching portion is suitable for various self-adjusting end positions to variously adjust the processing feed orientation in space.

[0012] Further, the retaining seat includes an opening opened at the top of the outer case, a plurality of sunken top rods arranged in an array at the opening, the lower ends of the plurality of sunken top rods pass through the opening downward into the outer case, and the plurality of sunken top rods are attached to each other and are rectangular, fixedly installed on the middle partition layer inside the outer case, a plurality of springs with one end connected to the middle partition layer and the other end respectively connected to the bottom surfaces of the plurality of sunken top rods, two cylinders installed in the outer case, and two tightening plates movably installed on the inner top wall of the outer case, and the two tightening plates are respectively connected to the output shafts of the two cylinders;

[0013] The two tightening plates are arranged opposite to each other, and both of the two tightening plates face the plurality of sinking ejector rods.

[0014] Furthermore, the punching part includes a side extension mounting platform fixedly mounted on the vertical pile column, a motor arranged on the side extension mounting platform, an outer sleeve mounted on the top of the vertical pile column, a shaft rod rotatably mounted in the outer sleeve, a swing arm connected to the front end of the shaft rod, a first adjustment device arranged on the swing arm, a second adjustment device arranged on the first adjustment device, an electro-hydraulic push rod obliquely arranged on the second adjustment device, a first transmission member mounted on the output end of the electro-hydraulic push rod, a punching device arranged on the first transmission member, a driven gear mounted on the tail of the shaft rod, a driving gear mounted on the output shaft of the motor, and an outer protective shell mounted on the side extension mounting platform and covering the driven gear and the driving gear;

[0015] The driven gear is meshed with the driving gear;

[0016] The punching device is obliquely close to a plurality of the sinking push rods.

[0017] Further, the lateral clamping mechanism comprises a vertical supporting plate installed on the outer case and located behind the plurality of the fall-down ejector rods, two first electric cylinders mirror-mounted in the middle of the vertical supporting plate, two groove strips respectively connected to the output shafts of the two first electric cylinders, two movable members respectively movably arranged in the two groove strips, two vertical handles respectively installed on the two movable members, and two groups of clamping end members respectively installed on the front side surfaces of the two movable members, and the two groups of clamping end members are located at the periphery of the plurality of the fall-down ejector rods;

[0018] The two movable parts are interference fit with the two groove strips.

[0019] Furthermore, the clamping end piece includes two first rectangular sleeves respectively installed on the two ends of the side of the movable piece, two mounting plates with one end respectively slidably inserted into the two first rectangular sleeves, and a clamping plate hinged on the other ends of the two mounting plates.

[0020] Furthermore, the first adjustment device includes a long slot opened on the swing arm, an outer protruding plate slidably installed in the long slot, a second electric cylinder installed on the swing arm close to one end of the shaft rod, and a second transmission member arranged between the output end of the second electric cylinder and the outer protruding plate.

[0021] Further, the second adjustment device includes a right-angle piece hinged at the corner of the outer protruding platform, a second rectangular sleeve hinged on the outer protruding platform and located behind the right-angle piece, a support plate with one end slidably inserted in the second rectangular sleeve and the other end connected to the right-angle piece, and a locking bolt screwed on the second rectangular sleeve and abutting against the support plate;

[0022] The electro-hydraulic push rod is arranged on the right-angle piece.

[0023] Furthermore, a dial is installed at the edge of the outer protruding platform, and a right-angle indicator rod is provided on the side of the right-angle piece;

[0024] The right-angle indicator rod is attached to the scale plate.

[0025] Furthermore, the bottom surfaces of the plurality of the sunken top rods are respectively connected with hollow rectangular pieces, and the plurality of the hollow rectangular pieces are movably inserted into the middle partition layer;

[0026] The plurality of springs are respectively located in the plurality of hollow rectangular members;

[0027] The first transmission member extends downward to cover the electro-hydraulic push rod.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. The special equipment for processing the inclined hole on the yaw surface of the wind turbine frame is used to place the frame during processing through a retaining seat, and the retaining seat can sink to different degrees under the pressure of the frame and according to the outer contour of the frame, and can lock its own state after sinking, thereby providing a stable placement place for the frame to ensure that the frame can be processed stably;

[0030] 2. The special equipment for processing the oblique hole on the yaw surface of the wind turbine frame can be used to clamp the frame in the middle by closely contacting the frame from both sides after the frame is stabilized on the retaining seat through the lateral clamping mechanism, thereby holding the frame on both sides and applying a certain clamping force to it, thereby further ensuring the stable placement of the frame on the basis of the retaining seat, and ensuring the stability of the frame during the processing;

[0031] 3. The special equipment for processing the oblique holes on the yaw surface of the wind turbine frame can cooperate with the retaining seat through the punching part to normally process the oblique holes on the frame, ensuring that the oblique holes can be smoothly processed on the frame as required. At the same time, the punching part can perform continuous punching operations along the circumferential direction, thereby avoiding the need to constantly adjust the position of the frame, thereby improving the processing speed and efficiency, and avoiding safety accidents caused by frequent manual adjustment of heavy frames, and can ensure processing accuracy to prevent the processed oblique holes from failing to meet the established requirements;

[0032] 4. The special equipment for processing the oblique holes on the yaw surface of the wind turbine frame can flexibly change the feed position and feed angle during processing through the punching part, thereby changing the position and angle of the oblique holes finally processed on the frame, thereby ensuring that different oblique hole processing plans can be obtained through rapid adjustment when the model, specification and corresponding yaw surface of the frame change, thereby ensuring the flexibility of production and processing to control production costs and shorten the processing cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0034] Figure 1 A perspective view of the present invention is shown;

[0035] Figure 2 A perspective view of the present invention at another angle is shown;

[0036] Figure 3 A first partial perspective view of the present invention is shown;

[0037] Figure 4 A partial stereoscopic view of the present invention at another angle is shown;

[0038] Figure 5 A second partial perspective view of the present invention is shown;

[0039] Figure 6 A partial bottom perspective view of the present invention is shown;

[0040] Figure 7 A partial stereoscopic view of the present invention at another angle is shown;

[0041] Figure 8 The present invention is shown Figure 2 A magnified image of point A;

[0042] Fig. 9 The present invention is shown Figure 3 A magnified view of point B;

[0043] Fig.10 The present invention is shown Figure 4 Enlarged view of point C;

[0044] Fig.11 The present invention is shown Figure 5 Enlarged view of point D.

[0045] In the figures, the same reference numerals denote the same structural elements, wherein:

[0046] 1. Base; 2. External chassis; 3. Vertical pile column; 4. Retaining seat; 41. Falling top rod; 42. Middle partition layer; 43. Spring; 44. Cylinder; 45. Tightening plate; 5. Lateral clamping mechanism; 51. Vertical supporting plate; 52. First electric cylinder; 53. Grooved strip; 54. Moving piece; 55. Vertical handle; 56. Clamping end piece; 561. First rectangular sleeve; 562. Mounting plate; 563. Clamping plate; 6. Punching part; 61. Lateral extension mounting table; 62. Motor; 63. External shaft sleeve; 64. Axle rod; 65, swing arm; 66, first adjustment device; 661, long groove; 662, protruding platform; 663, second electric cylinder; 664, second transmission member; 67, second adjustment device; 671, right-angle member; 672, second rectangular sleeve; 673, support plate; 674, locking bolt; 68, electro-hydraulic push rod; 69, first transmission member; 691, punching device; 692, driven gear; 693, driving gear; 694, outer casing; 7, dial; 8, right-angle indicator rod; 9, hollow rectangular member. DETAILED DESCRIPTION

[0047] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0048] like Figure 1-11 As shown, a special device for processing oblique holes on the yaw surface of a wind turbine frame is characterized in that it comprises: a base 1, an outer case 2 and a vertical pile column 3 arranged on the base 1, and the vertical pile column 3 is close to one side of the outer case 2, a retaining seat 4 and a lateral clamping mechanism 5 arranged on the outer case 2, and the lateral clamping mechanism 5 is located at the periphery of the retaining seat 4, and a punching portion 6 arranged on the vertical pile column 3;

[0049] The end of the punching portion 6 faces the retaining seat 4 obliquely, wherein:

[0050] After the peripheral rack is placed on the retaining seat 4, the retaining seat 4 will sink adaptively at multiple points to match the contour of the peripheral rack;

[0051] The lateral clamping mechanisms 5 are driven to move toward the external rack, respectively, until the two sides of the external rack are clamped to stop the external rack;

[0052] The drilling portion 6 is suitable for continuously drilling obliquely toward the external machine frame to process an oblique hole on the external machine frame;

[0053] The punching portion 6 is suitable for various self-adjusting end positions to variously adjust the processing feed orientation in the space. The special equipment for processing the yaw surface oblique holes of the wind turbine frame is used to place the frame during processing through the retaining seat 4, and the retaining seat 4 can sink to different degrees under the pressure of the frame and according to the outer contour of the frame, and can lock its own state after sinking, thereby providing a stable placement place for the frame to ensure that the frame can be processed stably. After the frame is stabilized on the retaining seat 4, the lateral clamping mechanism 5 can be used to tightly adhere to the frame from both sides to clamp it in the middle, thereby holding the frame on both sides and applying a certain clamping force to it, thereby further ensuring the stable placement of the frame on the basis of the retaining seat 4, ensuring the stability of the frame during processing, and the punching portion 6 can be used to lock the retaining seat 4 In coordination with the normal processing of the inclined holes on the frame, it is ensured that the inclined holes can be smoothly processed on the frame as required. At the same time, the punching part 6 can perform continuous punching operations in the circumferential direction, thereby avoiding the need to constantly adjust the position of the frame, thereby improving the processing speed and efficiency, and avoiding frequent manual adjustment of the heavy frame to cause safety accidents, and ensuring the processing accuracy to prevent the processed inclined holes from failing to meet the established requirements. The punching part 6 can flexibly change the feed position and feed angle during processing, thereby changing the position and angle of the inclined holes finally processed on the frame, thereby ensuring that when the model, specification and corresponding yaw surface of the frame change, different inclined hole processing schemes can be obtained through rapid adjustment, thereby ensuring the flexibility of production and processing to control production costs and shorten the processing cycle.

[0054] Optionally, the retaining seat 4 includes an opening opened at the top of the outer chassis 2, a plurality of sunken top rods 41 arranged in an array at the opening, the lower ends of the plurality of sunken top rods 41 pass through the opening downward into the outer chassis 2, and the plurality of sunken top rods 41 are attached to each other and are rectangular, fixedly installed on a middle partition layer 42 inside the outer chassis 2, a plurality of springs 43 with one end connected to the middle partition layer 42 and the other end respectively connected to the bottom surfaces of the plurality of sunken top rods 41, two cylinders 44 installed in the outer chassis 2, and two tightening plates 45 movably installed on the inner top wall of the outer chassis 2, and the two tightening plates 45 are respectively connected to the output shafts of the two cylinders 44;

[0055] The two tightening plates 45 are arranged opposite to each other, and both of the two tightening plates 45 face the plurality of sinking push rods 41. Under normal conditions, the plurality of sinking push rods 41 can move relative to each other. The frame to be processed is placed on the plurality of sinking push rods 41 with the face of the punching device 691 facing the punching device 691, and the position of the frame is reasonably placed so that the frame and the punching device 691 are close to each other to ensure that the punching operation can be carried out smoothly later. After the frame is placed on the plurality of sinking push rods 41, the plurality of sinking push rods 41 are pressed by the pressure of the frame. Then, the frame will sink to different degrees according to the outer contour, and the plurality of sinking push rods 41 will be continuously pressed downward. After the frame and the plurality of sinking push rods 41 are fully in contact, the two cylinders 44 will be synchronously driven to push the two clamping plates 45 forward, and the plurality of sinking push rods 41 will be squeezed from both sides by the two clamping plates 45, thereby greatly increasing the friction between the plurality of sinking push rods 41, locking the plurality of sinking push rods 41 and fixing them at the current position, and then positioning them by the placement interval formed by the plurality of sinking push rods 41 with different heights. The frame is designed to realize the positioning and clamping of the frame, thereby ensuring the smooth progress of the subsequent inclined hole processing; the shape of the frame is irregular, and the plurality of sunken push rods 41 can adapt to different frames, that is, the plurality of sunken push rods 41 can contact the outer contour of the frame with different sunken degrees, thereby ensuring a high degree of compatibility and effectively eliminating the limiting factors or deficiencies in the traditional processing method; in the process of the frame pressing the plurality of sunken push rods 41 downward, when the part to be punched on the frame reaches the appropriate position corresponding to the punching device 691, the two air The cylinder 44 locks the plurality of sunken ejector rods 41 to prevent the frame from moving further downward, in order to prevent the portion of the frame to be punched from deviating too much from the punching device 691, which may result in the subsequent inability to smoothly complete the processing of the inclined hole. When the plurality of sunken ejector rods 41 sink, the corresponding springs 43 are compressed at the same time. After the processing is completed, the frame is taken out and the lock of the plurality of sunken ejector rods 41 is released, all the compressed springs 43 rebound immediately, thereby resetting all the sunken ejector rods 41 that have been pressed down, and restoring the flatness of the plurality of sunken ejector rods 41 for the next processing.

[0056] Optionally, the punching part 6 includes a side extension mounting platform 61 fixedly mounted on the vertical pile column 3, a motor 62 arranged on the side extension mounting platform 61, an outer shaft sleeve 63 installed on the top of the vertical pile column 3, a shaft rod 64 rotatably mounted in the outer shaft sleeve 63, a swing arm 65 connected to the front end of the shaft rod 64, a first adjustment device 66 arranged on the swing arm 65, a second adjustment device 67 arranged on the first adjustment device 66, and an electro-hydraulic push rod 68 obliquely arranged on the second adjustment device 67. A first transmission member 69 mounted on the output end of the electro-hydraulic push rod 68, a punching device 691 arranged on the first transmission member 69, a driven gear 692 mounted on the tail of the shaft 64, a driving gear 693 mounted on the output shaft of the motor 62, and an outer protective shell 694 mounted on the side extension mounting platform 61 and covering the driven gear 692 and the driving gear 693. The punching device 691 can be a hole processing tool such as an impact drill, and the corresponding punching device 691 is selected according to specific needs;

[0057] The driven gear 692 is meshed with the driving gear 693;

[0058] The punching device 691 is obliquely close to the plurality of sunken push rods 41. After the frame is fixed by the retaining seat 4, the punching device 691 is started and the electro-hydraulic push rod 68 is driven to push the punching device 691 obliquely upward, so that the punching device 691 is used to punch holes on the frame until the punching device 691 is continuously fed with the continuous advancement of the electro-hydraulic push rod 68 to complete the processing of the first oblique hole and then withdraws from the punching device 691 in the opposite direction through the electro-hydraulic push rod 68. Then the motor 62 is driven to drive the shaft 64 to rotate under the meshing transmission, thereby synchronously driving the swing arm 65 to swing in a circle. When the punching device 691 is driven to swing to a suitable angle so that it is aligned with the predetermined position of the next oblique hole, it is punched again, and so on until the processing of all the oblique holes is completed, so that these oblique holes are accurately arranged on the frame in a circularly equal manner, thereby effectively avoiding the need to continuously adjust the position of the frame, so as to improve the processing speed and efficiency, avoid causing safety accidents, and effectively ensure that the processed oblique holes meet the established requirements.

[0059] Optionally, the lateral clamping mechanism 5 includes a vertical supporting plate 51 installed on the outer case 2 and located behind the plurality of the fall-down ejector rods 41, two first electric cylinders 52 mirror-mounted in the middle of the vertical supporting plate 51, two groove strips 53 respectively connected to the output shafts of the two first electric cylinders 52, two movable members 54 respectively movably arranged in the two groove strips 53, two vertical handles 55 respectively installed on the two movable members 54, and two groups of clamping end members 56 respectively installed on the front sides of the two movable members 54, and the two groups of clamping end members 56 are located at the periphery of the plurality of the fall-down ejector rods 41;

[0060] The two movable members 54 and the two groove strips 53 are interference fit, and there is a certain friction between the movable members 54 and the groove strips 53, so that the movable members 54 can be moved by pulling the vertical handle 55, and at the same time, the movable members 54 will not move randomly under normal conditions. Before the punching device 691 processes the inclined hole, the two first electric cylinders 52 are driven respectively to retract their output shafts, and the two groove strips 53 are gradually closed toward the middle frame until the two sets of clamping end members 56 are tightly against the frame, thereby pressing the frame toward the middle on both sides, thereby further strengthening the positioning and clamping effect of the frame, and high The degree ensures the stability of the frame during the processing, so that the punching device 691 can perform orderly and high-quality processing; before locking a number of sunken top rods 41, some sunken top rods 41 that are not pressed by the frame can also be pressed down according to the situation to prevent the two groove strips 53 from being blocked from closing and causing the two groups of clamping end pieces 56 to be unable to abut against the frame; by pulling the vertical handle 55, the two movable parts 54 can be moved back and forth along the corresponding groove strips 53, thereby ensuring that the positions of the two groups of clamping end pieces 56 can be adaptively adjusted according to the actual shape of the frame, ensuring that the two groups of clamping end pieces 56 can abut against the appropriate positions on the frame.

[0061] Optionally, the clamping end piece 56 includes two first rectangular sleeves 561 respectively installed on the two ends of the side of the movable piece 54, two mounting plates 562 with one end respectively slidably inserted in the two first rectangular sleeves 561, and a clamping plate 563 hinged on the other ends of the two mounting plates 562. The clamping plate 563 can be tilted through the two mounting plates 562 and the two first rectangular sleeves 561. When the surface on the frame is not a standard plane, as the two groove strips 53 continue to close, the clamping plate 563 can be adaptively adjusted after contacting the frame, thereby maximizing the fit between the two and increasing the contact area between the clamping plate 563 and the frame to ensure the clamping effect on the frame.

[0062] Optionally, the first adjustment device 66 includes a long slot 661 provided on the swing arm 65, an outer protruding plate 662 slidably installed in the long slot 661, a second electric cylinder 663 installed on the swing arm 65 near one end of the shaft rod 64, and a second transmission member 664 arranged between the output end of the second electric cylinder 663 and the outer protruding plate 662. After driving the second electric cylinder 663, the outer protruding plate 662 is driven by the second transmission member 664 to move along the long slot 661, thereby shortening or extending the distance from the punching device 691 to the shaft rod 64, so that the feeding position of the punching device 691 during processing can be flexibly changed to adjust the radius of the circularly arranged inclined holes finally processed, and obtain different inclined hole processing schemes.

[0063] Optionally, the second adjustment device 67 includes a right-angle piece 671 hinged at a corner of the outer protruding platform 662, a second rectangular sleeve 672 hinged on the outer protruding platform 662 and located behind the right-angle piece 671, a support plate 673 with one end slidably inserted into the second rectangular sleeve 672 and the other end connected to the right-angle piece 671, and a locking bolt 674 screwed on the second rectangular sleeve 672 and abutting against the support plate 673;

[0064] The electro-hydraulic push rod 68 is arranged on the right-angle piece 671. After loosening the locking bolt 674, the right-angle piece 671 is rotated through the hinge between the right-angle piece 671 and the outer protruding platform 662. At the same time, the second rectangular sleeve 672 also rotates on the outer protruding platform 662 as the right-angle piece 671 rotates, and the support plate 673 is retracted in the second rectangular sleeve 672 and is always connected to the right-angle piece 671. After the angle of the punching device 691 is adjusted, the locking bolt 674 is screwed on again to tighten the support plate 673, thereby fixing the right-angle piece 671 in the current position and preventing it from continuing to rotate, thereby achieving the purpose of flexibly changing the feed angle of the punching device 691 during processing, further ensuring that when the model, specification and corresponding yaw surface of the frame change, different inclined hole processing schemes can be obtained through rapid adjustment, thereby ensuring the flexibility of production and processing to control production costs and shorten the processing cycle.

[0065] Optionally, a dial plate 7 is installed at the edge of the outer protruding platform 662, and a right-angle indicator rod 8 is provided on the side of the right-angle piece 671;

[0066] The right-angle indicator rod 8 is attached to the dial 7. When the right-angle piece 671 is rotated, the right-angle indicator rod 8 moves synchronously with the dial 7, so that the changed angle of the right-angle piece 671 is indirectly fed back by relying on the dial 7 and through the right-angle indicator rod 8, ensuring that the angle change of the right-angle piece 671 can be understood intuitively and accurately, so as to ensure the accuracy of the feed angle adjustment of the punching device 691.

[0067] Optionally, a plurality of the bottom surfaces of the sunken top rods 41 are respectively connected with hollow rectangular pieces 9, and the plurality of the hollow rectangular pieces 9 are movably inserted into the middle partition layer 42;

[0068] The plurality of springs 43 are respectively located in the plurality of hollow rectangular members 9. When the fall-down top rod 41 is pressed downward, the corresponding hollow rectangular members 9 move downward on the middle partition layer 42, and the plurality of springs 43 are framed by the plurality of hollow rectangular members 9 at all times to maintain the shape of the plurality of springs 43, so as to prevent the plurality of springs 43 from being entangled with each other due to lateral deformation during the compression process, resulting in failure to smoothly reset the plurality of fall-down top rods 41.

[0069] The first transmission member 69 extends downward to cover the electro-hydraulic push rod 68 . The first transmission member 69 covers most of the electro-hydraulic push rod 68 , so that the first transmission member 69 is used to block the debris generated during drilling, thereby preventing a large amount of processing debris from falling on the electro-hydraulic push rod 68 .

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A special device for processing inclined holes on the yaw surface of a wind turbine frame, characterized in that: include: A base (1), an outer case (2) and a vertical pile (3) arranged on the base (1), wherein the vertical pile (3) is close to one side of the outer case (2), a retaining seat (4) and a lateral clamping mechanism (5) arranged on the outer case (2), wherein the lateral clamping mechanism (5) is located on the periphery of the retaining seat (4), and a punching portion (6) arranged on the vertical pile (3); The end of the punching portion (6) faces obliquely toward the retaining seat (4), wherein: After the external device rack is placed on the retaining seat (4), the retaining seat (4) sinks adaptively at multiple points to match the contour of the external device rack; The lateral clamping mechanisms (5) are driven to move toward the external device frame, respectively, until the two sides of the external device frame are clamped to stop the external device frame; The drilling portion (6) is suitable for continuously drilling obliquely toward the external machine frame to machine an oblique hole on the external machine frame; The punching portion (6) is suitable for various self-adjusting end positions so as to variously adjust the processing feed orientation in space.

2. The special equipment for processing inclined holes on the yaw surface of a wind turbine frame according to claim 1, characterized in that: The retaining seat (4) comprises an opening provided at the top of the outer case (2), a plurality of fall-down top rods (41) arranged in an array at the opening, the lower ends of the plurality of fall-down top rods (41) passing through the opening downwardly into the outer case (2), and the plurality of fall-down top rods (41) being attached to each other and forming a rectangular shape, fixedly mounted on a middle partition layer (42) inside the outer case (2), a plurality of springs (43) having one end connected to the middle partition layer (42) and the other end respectively connected to the bottom surfaces of the plurality of fall-down top rods (41), two cylinders (44) mounted in the outer case (2), and two tightening plates (45) movably mounted on the inner top wall of the outer case (2), and the two tightening plates (45) being respectively connected to the output shafts of the two cylinders (44); The two tightening plates (45) are arranged opposite to each other, and both of the two tightening plates (45) face the plurality of sinking push rods (41).

3. The special equipment for processing inclined holes on the yaw surface of a wind turbine frame according to claim 2, characterized in that: The punching part (6) comprises a side extension mounting platform (61) fixedly mounted on the vertical pile column (3), a motor (62) arranged on the side extension mounting platform (61), an outer shaft sleeve (63) mounted on the top of the vertical pile column (3), a shaft rod (64) rotatably mounted in the outer shaft sleeve (63), a swing arm (65) connected to the front end of the shaft rod (64), a first adjustment device (66) arranged on the swing arm (65), a second adjustment device (67) arranged on the first adjustment device (66), and an obliquely arranged An electro-hydraulic push rod (68) on the second adjustment device (67), a first transmission member (69) mounted on the output end of the electro-hydraulic push rod (68), a punching device (691) arranged on the first transmission member (69), a driven gear (692) mounted on the tail end of the shaft (64), a driving gear (693) mounted on the output shaft of the motor (62), and an outer protective shell (694) mounted on the side extension mounting platform (61) and covering the driven gear (692) and the driving gear (693); The driven gear (692) is meshed with the driving gear (693); The punching device (691) is obliquely close to the plurality of sinking push rods (41).

4. The special equipment for processing inclined holes on the yaw surface of a wind turbine frame according to claim 3, characterized in that: The lateral clamping mechanism (5) comprises a vertical supporting plate (51) mounted on the outer case (2) and located behind the plurality of the sinking top rods (41), two first electric cylinders (52) mounted in a mirror image on the middle of the vertical supporting plate (51), two groove strips (53) respectively connected to the output shafts of the two first electric cylinders (52), two movable members (54) respectively movably arranged in the two groove strips (53), two vertical handles (55) respectively mounted on the two movable members (54), and two groups of clamping end members (56) respectively mounted on the front side surfaces of the two movable members (54), and the two groups of clamping end members (56) are located on the periphery of the plurality of the sinking top rods (41); The two movable members (54) and the two groove strips (53) are in interference fit.

5. The special equipment for processing inclined holes on the yaw surface of a wind turbine frame according to claim 4, characterized in that: The clamping end member (56) comprises two first rectangular sleeves (561) respectively mounted on the two ends of the side of the movable member (54), two mounting plates (562) one end of which is respectively slidably inserted into the two first rectangular sleeves (561), and a clamping plate (563) hinged on the other end of the two mounting plates (562).

6. The special equipment for processing inclined holes on the yaw surface of a wind turbine frame according to claim 5, characterized in that: The first adjustment device (66) includes a long groove (661) provided on the swing arm (65), an outer protruding plate (662) slidably installed in the long groove (661), a second electric cylinder (663) installed on one end of the swing arm (65) close to the shaft (64), and a second transmission member (664) arranged between the output end of the second electric cylinder (663) and the outer protruding plate (662).

7. The special equipment for processing inclined holes on the yaw surface of a wind turbine frame according to claim 6, characterized in that: The second adjustment device (67) comprises a right-angle piece (671) hinged at a corner of the outer protruding platform (662), a second rectangular sleeve (672) hinged on the outer protruding platform (662) and located behind the right-angle piece (671), a support plate (673) with one end slidably inserted into the second rectangular sleeve (672) and the other end connected to the right-angle piece (671), and a locking bolt (674) screwed on the second rectangular sleeve (672) and abutting against the support plate (673); The electro-hydraulic push rod (68) is arranged on the right-angle piece (671).

8. The special equipment for processing inclined holes on the yaw surface of a wind turbine frame according to claim 7, characterized in that: A dial (7) is installed at the edge of the outer protruding platform (662), and a right-angle indicator rod (8) is arranged on the side of the right-angle piece (671); The right-angle indicator rod (8) is attached to the scale plate (7).

9. The special equipment for processing inclined holes on the yaw surface of a wind turbine frame according to claim 8, characterized in that: The bottom surfaces of the plurality of sinking top rods (41) are respectively connected with hollow rectangular pieces (9), and the plurality of hollow rectangular pieces (9) are movably inserted into the middle partition layer (42); The plurality of springs (43) are respectively located in the plurality of hollow rectangular members (9); The first transmission member (69) extends downward to cover the electro-hydraulic push rod (68).

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