A wind wheel assembly front ring riveting and pressing feeding device

Abstract

This invention discloses a riveting and feeding device for the front ring of a wind turbine assembly, relating to the field of wind turbine front ring feeding technology. It includes: a frame, which is ring-shaped; a first lifting mechanism, disposed on one side of the frame, for connection to a transfer mechanism on the production line; a four-jaw cylinder, disposed inside the frame, with its four output ends connected to four first grippers via four first connecting rods, the four first grippers arranged in a circumferential pattern, capable of radially opening and closing under the drive of the four-jaw cylinder; and a gripper cylinder, movably disposed below the four-jaw cylinder, with a second gripper connected to each of its two output ends, capable of clamping a bushing under the drive of the gripper cylinder; thus achieving automated and precise riveting and feeding of the front ring of the wind turbine and the bushing.

Description

Technical Field

[0001] This invention belongs to the field of wind turbine assembly front ring feeding technology, and more specifically, relates to a wind turbine assembly front ring riveting feeding device. Background Technology

[0002] During wind turbine assembly, the front ring and bushing of the wind turbine need to be placed at a certain angle on the riveting position for riveting. The angle between the front ring and bushing is based on the positioning groove on the front ring and the positioning protrusion on the bushing. For wind turbines with transmission, the front ring and bushing need to be placed manually at the riveting position, which is not only labor-intensive and inefficient, but also makes it difficult to ensure the accuracy of the angle, thus affecting assembly quality. Summary of the Invention

[0003] The purpose of this invention is to provide a front ring riveting and feeding device for wind turbine assembly. This device is suitable for wind turbine assembly production lines. It is connected to the transfer mechanism on the production line through a first lifting mechanism. The four-jaw cylinder of this device can drive four first grippers to pick up the front ring with the pre-positioned angle at the previous station. The gripper cylinder can also drive two second grippers to pick up the bushing with the pre-positioned angle at the previous station. Then, under the transfer of the transfer mechanism, the front ring and bushing with the pre-positioned angle are transferred to the riveting station, realizing automated and precise riveting and feeding of the front ring and bushing.

[0004] To achieve the above objectives, the present invention provides a front ring riveting and feeding device for wind turbine assembly, used for riveting and feeding the front ring and bushing of a wind turbine on a wind turbine assembly production line. The device includes:

[0005] The frame is ring-shaped;

[0006] A first lifting mechanism is disposed on one side of the frame, and the first lifting mechanism is used to connect with the transfer mechanism on the production line;

[0007] A four-jaw cylinder is installed inside the frame. The four output ends of the four-jaw cylinder are connected to four first jaws respectively through four first connecting rods. The four first jaws are arranged in a circumferential pattern and can open and close radially under the drive of the four-jaw cylinder.

[0008] A gripper cylinder is vertically mounted below the four-jaw cylinder. A second gripper is connected to each of the two output ends of the gripper cylinder. The two second grippers can grip the bushing under the drive of the gripper cylinder.

[0009] Optionally, the frame includes an upper annular plate and a lower annular plate, wherein the upper annular plate is connected to the lower annular plate through a plurality of circumferentially arranged connecting parts.

[0010] Optionally, the first lifting mechanism includes a first connecting plate, a slide rail is provided on one side of the first connecting plate, a slider is provided on the slide rail, the slider is connected to the frame through a second connecting plate, and a first telescopic structure is provided on the first connecting plate, the fixed end and the moving end of the first telescopic structure are respectively connected to the first connecting plate and the slider.

[0011] Optionally, the first telescopic structure includes a lead screw rotatably connected to the first connecting plate, one end of the lead screw is provided with a drive motor, the slider is connected with a drive plate, and the drive plate has a threaded hole that mates with the lead screw.

[0012] Optionally, a first distance sensor is provided at the bottom of the frame.

[0013] Optionally, a second distance sensor is provided on one side of the second gripper.

[0014] Optionally, the upper end of the four-jaw cylinder is connected to the upper end of the frame via a first bracket, and the lower end of the frame is provided with an annular guide plate. An annular protrusion is provided on the inner circumference of the annular guide plate, and the outer circumference of the annular protrusion is inserted into the inner circumference of the front ring. Four first guide grooves are provided on the annular guide plate, and the first jaw can slide in the first guide grooves.

[0015] Optionally, the gripper cylinder is connected to the upper end of the frame via a second bracket, the second bracket being slidably engaged with the frame, and a second lifting mechanism is connected to the second bracket.

[0016] Optionally, the second lifting mechanism includes a second telescopic structure, wherein the fixed end and the movable end of the second telescopic structure are respectively connected to the frame and the second support.

[0017] Optionally, the lower end of the second bracket passes through the frame and is connected to a third connecting plate. A through hole is provided in the middle of the third connecting plate. The gripper cylinder is connected to the third connecting plate. The second gripper passes through the through hole and is partially exposed. A second guide groove is provided on the wall of the through hole, and the second gripper can slide in the second guide groove.

[0018] This invention provides a front ring riveting and feeding device for wind turbine assembly. Its advantages are as follows: the device is suitable for wind turbine assembly production lines. It is connected to the transfer mechanism on the production line through a first lifting mechanism. The four-jaw cylinder of the device can drive four first jaws to pick up the front ring with the pre-positioned angle at the previous station. The jaw cylinder can also drive two second jaws to grip the bushing with the pre-positioned angle at the previous station. Then, under the transfer of the transfer mechanism, the front ring and bushing with the pre-positioned angle are transferred to the riveting station, realizing automated and precise riveting and feeding of the front ring and bushing.

[0019] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0020] The above and other objects, features and advantages of the present invention will become more apparent from the more detailed description of exemplary embodiments of the invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the invention.

[0021] Figure 1 A three-dimensional structural schematic diagram of a wind turbine assembly front ring riveting and feeding device according to an embodiment of the present invention is shown.

[0022] Figure 2 A schematic diagram of the structure of a four-jaw cylinder for a wind turbine assembly front ring riveting and feeding device according to an embodiment of the present invention is shown.

[0023] Figure 3 The diagram shows a top-view structural schematic of a four-jaw cylinder of a wind turbine assembly front ring riveting and feeding device according to an embodiment of the present invention.

[0024] Figure 4 A three-dimensional structural schematic diagram of a wind turbine assembly front ring riveting and feeding device according to an embodiment of the present invention is shown.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Front ring; 2. Bushing; 3. Frame; 4. First lifting mechanism; 5. Four-jaw cylinder; 6. First connecting rod; 7. First gripper; 8. Gripper cylinder; 9. Second gripper; 10. Upper annular plate; 11. Lower annular plate; 12. Connecting part; 13. First connecting plate; 14. Slide rail; 15. Slider; 16. Second connecting plate; 17. Annular guide plate; 18. First guide groove; 19. First bracket; 20. Second bracket; 21. Second lifting mechanism; 22. Third connecting plate; 23. Through hole; 24. Second guide groove. Detailed Implementation

[0027] Preferred embodiments of the invention will now be described in more detail. While preferred embodiments of the invention are described below, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0028] This invention provides a riveting and feeding device for the front ring of a wind turbine assembly line, used for riveting and feeding the front ring and bushing of a wind turbine on a wind turbine assembly production line. The device includes:

[0029] The frame is ring-shaped;

[0030] The first lifting mechanism is located on one side of the frame and is used to connect with the transfer mechanism on the production line.

[0031] The four-jaw cylinder is installed inside the frame. The four output ends of the four-jaw cylinder are connected to the four first jaws respectively through the four first connecting rods. The four first jaws are arranged in a circumferential pattern and can open and close radially under the drive of the four-jaw cylinder.

[0032] The gripper cylinder is vertically mounted below the four-jaw cylinder. A second gripper is connected to each of the two output ends of the gripper cylinder. The two second grippers can clamp the bushing under the drive of the gripper cylinder.

[0033] Specifically, the frame of the device is connected to the transfer mechanism via a first lifting mechanism. The transfer mechanism enables the entire device to move between different workstations. The first lifting mechanism enables the entire device to be raised and lowered, realizing the lifting and lowering of the four-jaw cylinder and the first gripper. The gripper cylinder is movably positioned below the four-jaw cylinder, enabling the lifting and lowering of the gripper cylinder and the second gripper. The opening and closing of the four first grippers can pick up the positioned front ring. The picking method can be either clamping or expanding. The second gripper can clamp the positioned bushing after lowering. In this way, the picking of the front ring and bushing can not destroy the original angular positioning of the front ring and bushing, ensuring assembly accuracy. After picking up the front ring and bushing, the device can move the front ring and bushing to the riveting station under the drive of the transfer mechanism, and then put the front ring and bushing down in sequence. During the lowering process, the original angular positioning of the front ring and bushing can still be maintained, realizing the fixed-angle riveting and feeding of the front ring and bushing.

[0034] Optionally, the frame includes an upper annular plate and a lower annular plate, the upper annular plate being connected to the lower annular plate through a plurality of circumferentially arranged connecting parts.

[0035] Specifically, a gap is formed between the upper and lower annular plates, which can accommodate the gripper cylinder and the second gripper. This allows the gripper cylinder and the second gripper to be within the gap when the four-jaw cylinder drives the first gripper to pick up the front ring. The lower end of the second gripper is in a retracted state, which does not affect the first gripper's picking up of the front ring.

[0036] Optionally, the first lifting mechanism includes a first connecting plate, a slide rail is provided on one side of the first connecting plate, a slider is provided on the slide rail, the slider is connected to the frame through a second connecting plate, and a first telescopic structure is provided on the first connecting plate, the fixed end and the movable end of the first telescopic structure are respectively connected to the first connecting plate and the slider.

[0037] Specifically, the extension and retraction of the first telescopic structure can drive the slider and the frame to move along the slide rail, thereby realizing the lifting and lowering of the device relative to the first connecting plate. The first connecting plate is provided with multiple mounting holes, and the first connecting plate is mounted on the transfer mechanism through the mounting holes.

[0038] Optionally, the first telescopic structure includes a lead screw rotatably connected to a first connecting plate, one end of the lead screw being equipped with a drive motor, a drive plate being connected to the slider, and the drive plate having a threaded hole that mates with the lead screw inside.

[0039] Specifically, by using a lead screw mechanism as the first telescopic structure, the overall lifting and lowering of the device can be precisely controlled.

[0040] Optionally, a first distance sensor is provided at the bottom of the rack.

[0041] Specifically, the first distance sensor measures downwards, and based on the downward measurement of the first distance sensor, the distance between the first gripper and the front ring can be obtained. When the detection result of the first distance sensor shows that the first gripper has been inserted into the inner circumference of the front ring, the first lifting mechanism can stop descending. At this time, the front ring can be picked up by the first gripper.

[0042] Optionally, a second distance sensor is provided on one side of the second gripper.

[0043] Specifically, the second distance sensor measures the distance downwards. Based on the downward distance measured by the second distance sensor, the distance between the second gripper and the bushing can be obtained. When the detection result of the second distance sensor shows that the second gripper has been inserted into the outer circumference of the bushing, the second lifting mechanism can stop descending. At this time, the bushing can be gripped by the second gripper.

[0044] Optionally, the upper end of the four-jaw cylinder is connected to the upper end of the frame via a first bracket, and an annular guide plate is provided at the lower end of the frame. An annular protrusion is provided on the inner circumference of the annular guide plate, and the outer circumference of the annular protrusion is inserted and engaged with the inner circumference of the front ring. Four first guide grooves are provided on the annular guide plate, and the first jaw can slide in the first guide grooves.

[0045] Specifically, the first bracket is U-shaped and fixes the four-jaw cylinder to the frame. The output end of the four-jaw cylinder is connected to the four first jaws located below the frame through four first connecting rods that pass through the inside of the frame. The annular protrusion on the guide plate can be inserted into the inner circumference of the front ring, and the first jaws can move radially and slide in the first guide groove.

[0046] Optionally, the gripper cylinder is connected to the upper end of the frame via a second bracket, the second bracket is slidably engaged with the frame, and a second lifting mechanism is connected to the second bracket.

[0047] Specifically, the second support is also U-shaped, including two sliding rods and a crossbeam that slide through the frame. The second lifting mechanism can be set between the crossbeam and the first support to drive the lifting of the first support.

[0048] Optionally, the second lifting mechanism includes a second telescopic structure, wherein the fixed end and the movable end of the second telescopic structure are respectively connected to the frame and the second support.

[0049] Specifically, the second telescopic structure can be a linear cylinder.

[0050] Optionally, the lower end of the second bracket passes through the frame and is connected to a third connecting plate. A through hole is provided in the middle of the third connecting plate. The gripper cylinder is connected to the third connecting plate. The second gripper passes through the through hole and is partially exposed. A second guide groove is provided on the wall of the through hole, and the second gripper can slide in the second guide groove.

[0051] Specifically, driven by the gripper cylinder, the two second grippers can move towards or away from each other in the second guide groove to clamp and release the bushing.

[0052] Example

[0053] like Figures 1 to 4 As shown, the present invention provides a front ring riveting and feeding device for wind turbine assembly, used for riveting and feeding the front ring 1 and bushing 2 of a wind turbine on a wind turbine assembly production line. The device includes:

[0054] Frame 3 is ring-shaped;

[0055] The first lifting mechanism 4 is located on one side of the frame 3 and is used to connect with the transfer mechanism on the production line.

[0056] The four-jaw cylinder 5 is installed inside the frame 3. The four output ends of the four-jaw cylinder 5 are connected to the four first jaws 7 respectively through the four first connecting rods 6. The four first jaws 7 are arranged in a circumferential pattern and can open and close radially under the drive of the four-jaw cylinder 5.

[0057] The gripper cylinder 8 is vertically mounted below the four-jaw cylinder 5. A second gripper 9 is connected to each of the two output ends of the gripper cylinder 8. The two second grippers 9 can clamp the bushing 2 under the drive of the gripper cylinder 8.

[0058] In this embodiment, the frame 3 includes an upper annular plate 10 and a lower annular plate 11. The upper annular plate 10 is connected to the lower annular plate 11 through a plurality of circumferentially arranged connecting parts 12.

[0059] In this embodiment, the first lifting mechanism 4 includes a first connecting plate 13, a slide rail 14 is provided on one side of the first connecting plate 13, a slider 15 is provided on the slide rail 14, the slider 15 is connected to the frame 3 through a second connecting plate 16, and a first telescopic structure is provided on the first connecting plate 13, the fixed end and the moving end of the first telescopic structure are respectively connected to the first connecting plate 13 and the slider 15.

[0060] In this embodiment, the first telescopic structure includes a lead screw rotatably connected to the first connecting plate 13, a drive motor is provided at one end of the lead screw, a drive plate is connected to the slider 15, and a threaded hole that mates with the lead screw is provided inside the drive plate.

[0061] In this embodiment, a first distance sensor is provided at the bottom of the frame 3.

[0062] In this embodiment, a second distance sensor is provided on one side of the second gripper 9.

[0063] In this embodiment, the upper end of the four-jaw cylinder 5 is connected to the upper end of the frame 3 through the first bracket 19. The lower end of the frame 3 is provided with an annular guide plate 17. An annular protrusion is provided on the inner circumference of the annular guide plate 17. The outer circumference of the annular protrusion is inserted and engaged with the inner circumference of the front ring 1. Four first guide grooves 18 are provided on the annular guide plate 17. The first jaw 7 can slide in the first guide grooves 18.

[0064] In this embodiment, the gripper cylinder 8 is connected to the upper end of the frame 3 via the second bracket 20. The second bracket 20 is slidably engaged with the frame 3, and a second lifting mechanism 21 is connected to the second bracket 20.

[0065] In this embodiment, the second lifting mechanism 21 includes a second telescopic structure, and the fixed end and the movable end of the second telescopic structure are respectively connected to the frame 3 and the second support 20.

[0066] In this embodiment, the lower end of the second bracket 20 passes through the frame 3 and is connected to the third connecting plate 22. The third connecting plate 22 has a through hole 23 in the middle. The gripper cylinder 8 is connected to the third connecting plate 22. The second gripper 9 passes through the through hole 23 and is partially exposed. The hole wall of the through hole 23 is provided with a second guide groove 24. The second gripper 9 can slide in the second guide groove 24.

[0067] In summary, when the wind turbine assembly front ring 1 riveting and feeding device provided by this invention is used on a front ring 1 assembly production line as an example: the upstream of the device is the front ring 1 bushing 2 positioning station on the production line. The front ring 1 bushing 2 positioning station can position the front ring 1 and bushing 2 at a certain angle using the positioning groove on the front ring 1 and the positioning protrusion on the bushing 2 as positioning references. After positioning, driven by the transfer mechanism on the production line, the device moves above the positioned front ring 1 and bushing 2. The transfer mechanism can be several linear modules. After the device reaches the positioned front ring 1 and bushing 2, the first lifting mechanism 4 first moves the device frame 3 downwards, while the first distance sensor measures the distance downwards. Based on the downward distance measured by the first distance sensor, the distance between the first gripper 7 and the front ring 1 can be obtained. At this time, the four first grippers 7 are in the closed state. When the detection result of the first distance sensor shows that the first gripper 7 has been inserted into the inner circumference of the front ring 1, the first lifting mechanism 4 stops. At this time, the four-jaw cylinder 5 is activated. The four-jaw cylinder 5 drives the four first grippers 7 to open through the first connecting rod 6. The outer sides of the four first grippers 7 contact the inner circumference of the front ring 1 and achieve contact with the front ring. The device is connected by a tensioning mechanism 1. Then, the second lifting mechanism 21 drives the gripper cylinder 8 and the second gripper 9 to move downwards. At the same time, the second distance sensor measures the distance downwards. Based on the downward distance measurement of the second distance sensor, the distance between the second gripper 9 and the bushing 2 can be obtained. At this time, the two second grippers 9 are in the open state. When the detection result of the second distance sensor shows that the second gripper 9 has been inserted into the outer circumference of the bushing 2, the second lifting mechanism 21 stops. At this time, the gripper cylinder 8 is activated, and the gripper cylinder 8 drives the two second grippers 9 to close. The inner sides of the two second grippers 9 clamp the bushing 2. In this way, the front ring 1 and the bushing 2 are clamped and fixed at a certain angle. Afterwards, the first lifting mechanism 4 is activated to move the device upwards. Then, the transfer mechanism moves the device to above the riveting station. Above the riveting station, the device places the front ring 1 and the bushing 2 at a certain positioning angle on the riveting station in the order of lowering down the front ring 1 and then lowering down the bushing 2 by the second lifting mechanism 21. It not only achieves automated riveting and feeding of the front ring 1 and bushing 2, saving manpower and improving efficiency, but also accurately maintains the angular positioning of the front ring 1 and bushing 2 during the feeding process, improving the accuracy of assembly.

[0068] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A wind wheel assembly front ring riveting and pressing feeding device for the riveting and pressing feeding of the front ring and the shaft sleeve of the wind wheel on a wind wheel assembly production line, characterized in that, The device comprises: a frame, which is annular; a first lifting mechanism arranged on one side of the frame, used for connecting with a transfer mechanism on a production line; a four-jaw cylinder arranged inside the frame, four output ends of the four-jaw cylinder are connected with four first clamping jaws respectively through four first connecting rods, the four first clamping jaws are arranged in a circumferential direction, and the four first clamping jaws can be opened and closed radially under the drive of the four-jaw cylinder; a clamping jaw cylinder, which is arranged below the four-jaw cylinder in a liftable manner, two output ends of the clamping jaw cylinder are connected with two second clamping jaws respectively, and the two second clamping jaws can clamp the shaft sleeve under the drive of the clamping jaw cylinder; the first lifting mechanism can drive the whole device to lift, so as to lift the four-jaw cylinder and the first clamping jaws, the clamping jaw cylinder is arranged below the four-jaw cylinder in a liftable manner, so as to lift the clamping jaw cylinder and the second clamping jaws, the opening and closing of the four first clamping jaws can pick up the front ring positioned, and the second clamping jaws can clamp the shaft sleeve positioned after descending; the frame comprises an upper annular plate and a lower annular plate, the upper annular plate is connected with the lower annular plate through a plurality of connecting parts arranged in a circumferential direction, a gap is formed between the upper annular plate and the lower annular plate, the gap can accommodate the clamping jaw cylinder and the second clamping jaws, so that the clamping jaw cylinder and the second clamping jaws can be in the gap when the four-jaw cylinder drives the first clamping jaws to pick up the front ring; a first distance sensor is arranged at the bottom of the frame; a second distance sensor is arranged on one side of the second clamping jaw; the upper end of the four-jaw cylinder is connected with the upper end of the frame through a first support, the lower end of the frame is provided with an annular guide plate, an annular protruding part is arranged on the inner periphery of the annular guide plate, the outer periphery of the annular protruding part is inserted and matched with the inner periphery of the front ring, four first guide grooves are arranged on the annular guide plate, and the first clamping jaws can slide in the first guide grooves; the clamping jaw cylinder is connected with the upper end of the frame through a second support, the second support is in sliding fit with the frame, and a second lifting mechanism is connected with the second support; the second lifting mechanism comprises a second telescopic structure, and the fixed end and the moving end of the second telescopic structure are connected with the frame and the second support respectively; the lower end of the second support penetrates through the frame and is connected with a third connecting plate, a through hole is arranged in the middle of the third connecting plate, the clamping jaw cylinder is connected with the third connecting plate, the second clamping jaw is arranged in the through hole and partially exposed, a second guide groove is arranged on the hole wall of the through hole, and the second clamping jaw can slide in the second guide groove.

2. The wind wheel assembly front circle riveting and pressing feeding device according to claim 1, characterized in that, the first lifting mechanism comprises a first connecting plate, one side of the first connecting plate is provided with a sliding rail, a sliding block is arranged on the sliding rail, the sliding block is connected with the frame through a second connecting plate, a first telescopic structure is arranged on the first connecting plate, and the fixed end and the moving end of the first telescopic structure are connected with the first connecting plate and the sliding block respectively.

3. The wind wheel assembly front circle riveting and pressing feeding device according to claim 2, characterized in that, The first telescopic structure comprises a screw rod rotationally connected to the first connecting plate, one end of the screw rod is provided with a driving motor, the sliding block is connected with a driving plate, and the inside of the driving plate is provided with a threaded hole matched with the screw rod.

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