Water immersion ultrasonic automatic detection device and method for ring forgings of wind generating set

Abstract

The invention discloses a water immersion ultrasonic automatic detection device and method for ring forgings of a wind generating set, and the device comprises a rack, conveying chains which are rotatably disposed at two sides of the rack, and a plurality of first bearing rods and second bearing rods which are disposed on the conveying chains at intervals in a staggered manner and are used for conveying the ring forgings. The two ends of the first bearing rod and the two ends of the second bearing rod are detachably connected with the conveying chain through limiting pieces. A water immersion tank is arranged on the inner side of the conveying chain, ultrasonic detection equipment is installed in the water immersion tank, and the two sides of the water immersion tank are installed on the rack. According to the device, the multiple ring forgings are stacked in the feeding bin, then the device is started, the ring forgings are conveyed to the position above the water immersion tank through the conveying chain, then the ring forgings are conveyed into the water immersion tank through the lifting assembly to be subjected to water immersion and ultrasonic detection, the ring forgings are lifted and conveyed out after detection is completed, and automatic batch detection of the ring forgings is achieved through the device; and the detection efficiency of the ring forge piece is improved.

Description

Technical Field

[0001] The invention relates to the technical field of water-immersion ultrasonic detection of ring forgings, in particular to a device and method for automatic water-immersion ultrasonic detection of ring forgings of a wind turbine generator set. Background Art

[0002] Ring forgings are generally used as flange blanks for wind turbine generator systems. Ring forgings are produced by processing ring blanks on a ring rolling machine. The outer edge of the roller drives the blank to rotate, achieving rolling forming by reducing the thickness of the blank and expanding its diameter. Water immersion ultrasonic testing of ring forgings is used to evaluate the quality defects inside and on the surface of ring forgings to ensure that they meet engineering requirements. It mainly detects defects such as cracks, pores, inclusions, and looseness inside the ring forgings to avoid structural failure due to internal discontinuities in the material.

[0003] The existing method of water immersion ultrasonic testing of ring forgings generally uses a clamp to clamp a single ring forging and then places it in a water immersion tank for monitoring, and then the ring forging is clamped out. This method not only requires the use of a clamp, but also has low efficiency and automation level, which is not conducive to batch testing of ring forgings. Therefore, the present invention proposes an automatic water immersion ultrasonic testing device and method for ring forgings of wind turbines to solve the above problems. Summary of the Invention

[0004] The object of the present invention is to provide an automatic ultrasonic detection device and method for water immersion of ring forgings of a wind turbine generator set, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a wind turbine ring forging water immersion ultrasonic automatic detection device, comprising a frame, a conveyor chain rotatably arranged on both sides of the frame, and a plurality of first and second bearing rods staggered and arranged at intervals on the conveyor chain for conveying the ring forgings, wherein both ends of the first and second bearing rods are detachably connected to the conveyor chain via a stopper;

[0006] A water immersion tank is provided on the inner side of the conveyor chain, and an ultrasonic detection device is installed in the water immersion tank. Both sides of the water immersion tank are installed on the frame. A lifting component for lifting ring forgings is provided in the water immersion tank. A loading bin is also provided on the side above the conveyor chain.

[0007] As a preferred solution of the present invention, wherein: a rotating shaft is provided at the four inner corners of the conveyor chain, both ends of the rotating shaft are rotatably mounted on the frame, two sprockets are provided on the rotating shaft, the conveyor chain is sleeved on the sprockets, a first motor is installed on one side of the frame, and the output shaft of the first motor is connected to one end of a rotating shaft.

[0008] As a preferred solution of the present invention, the limiting member includes a groove plate mounted on both ends of the first load-bearing rod and the second load-bearing rod and two annular slide rails arranged on the inner side of the conveyor chain. The groove plate is installed on the conveyor chain, and rollers are provided at the bottom and both sides of both ends of the first load-bearing rod and the second load-bearing rod. The rollers on both sides are in contact with the inner walls of the groove plate on both sides, and the rollers at the bottom roll along the annular slide rails.

[0009] As a preferred solution of the present invention, baffles are provided on the top and inner sides of the first bearing rod and the second bearing rod, first brackets are provided on both sides of the frame, and the two annular slide rails are connected to the first brackets.

[0010] As a preferred solution of the present invention, the annular slide rail is provided with two notches above the water immersion tank, and the annular slide rail between the two notches is installed at the bottom of the water immersion tank through a vertical rod. When the first bearing rod and the second bearing rod move to the notch of the annular slide rail, the two ends of the first bearing rod and the second bearing rod move downward and detach from the tank plate.

[0011] As a preferred solution of the present invention, the lifting assembly includes an elevator arranged on both sides of the water immersion tank, a second bracket and guide rails arranged on both sides of the elevator, the elevator is installed on the inner wall of the water immersion tank, and the guide rail is installed on the inner wall of the water immersion tank through a cross bar, and the top of the guide rail is located directly below the gap of the annular slide rail.

[0012] As a preferred solution of the present invention, the elevator includes a rotating rod, a mounting base arranged at both ends of the rotating rod, a second motor arranged on the mounting base and a slide arranged on one side of the rotating rod. The elevator is installed in the water immersion tank through the mounting base, the output shaft of the second motor is connected to one end of the rotating rod, and two guide rods are also provided on one side of the mounting base. The slide is interspersed on the guide rod, and the rotating rod is provided with intersecting spiral grooves. The slide slides along the spiral grooves of the rotating rod. The bottom of the second bracket is installed on the slides of the two elevators, and the top of the second bracket is supported on the bottom of the first bearing rod and the second bearing rod.

[0013] As a preferred solution of the present invention, wherein: a third bracket is provided on both sides of the loading bin, the loading bin is installed on the third bracket, the bottom end of the third bracket is installed on the frame, the loading bin is a square frame structure, the bottom of the loading bin is bent inward to form a discharge port, the width of the discharge port is adapted to the width of the ring forging, the top of the baffle at the top of the first bearing rod is flush with the top of the discharge port, and the top of the baffle at the top of the second bearing rod is flush with the bottom of the discharge port.

[0014] The detection method of the water-immersion ultrasonic automatic detection device for ring forgings of a wind turbine generator set comprises the following steps:

[0015] S1. Stack multiple ring forgings in a loading bin, control a first motor to rotate intermittently, and drive a rotating shaft through the first motor to rotate. The rotating shaft drives a sprocket and a conveyor chain to rotate, and a first bearing rod and a second bearing rod rotate along with the conveyor chain.

[0016] S2, the second carrying rod passes through the bottom of the upper hopper, and pushes a ring forging out of the discharge port of the upper hopper through the stop rod on the top of the first carrying rod, so that the ring forging falls on the first carrying rod and the second carrying rod;

[0017] S3. When the first and second bearing rods move to the notch of the annular slide rail, the first motor stops and the second motor starts, causing the second motor to drive the rotating rod to rotate, and the slide makes a reciprocating motion up and down along the spiral groove of the rotating rod. When the slide moves downward, the second bracket is driven downward by the slide, and the first and second bearing rods follow the second bracket to move downward and detach from the groove plate, pass through the notch and enter the guide rail, until the ring forging completely falls into the water immersion tank for water immersion and ultrasonic testing;

[0018] S4. After the ring forging is inspected, the second motor is controlled to move the slide upward, the first bearing rod and the second bearing rod are reset, the first motor is started, and the inspected ring forging is sent out.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention stacks multiple ring forgings in a loading bin, then starts the device, transports the ring forgings to the top of a water immersion tank via a conveyor chain, and then sends the ring forgings into the water immersion tank via a lifting assembly for water immersion and ultrasonic testing. After the testing is completed, the ring forgings are lifted and sent out. The device realizes batch automated testing of ring forgings and improves the testing efficiency of ring forgings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the enlarged structure at A in the middle; Figure 3 Schematic diagram of the structure of the limiter of the present invention; Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure at B in the middle; Figure 5 Schematic diagram of the internal structure of the water immersion tank of the present invention; Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure at C in the middle; In the figure: 1. Frame; 2. Conveyor chain; 3. First load-bearing rod; 4. Second load-bearing rod; 5. Limiting member; 51. Slot plate; 52. Annular slide rail; 521. Notch; 53. Roller; 6. Immersion tank; 7. Lifting assembly; 71. Lifter; 711. Rotating rod; 7111. Spiral groove; 712. Mounting seat; 713. Second motor; 714. Slide; 715. Guide rod; 72. Second bracket; 73. Guide rail; 8. Loading bin; 81. Discharge port; 9. Rotating shaft; 10. Sprocket; 11. First motor; 12. First bracket; 13. Third bracket; 14. Baffle. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1-6 The wind turbine generator set ring forging water immersion ultrasonic automatic detection device includes a frame 1, a conveyor chain 2 rotatably arranged on both sides of the frame 1, and a plurality of first bearing rods 3 and second bearing rods 4 staggered and arranged at intervals on the conveyor chain 2 for conveying the ring forgings. Specifically, the number of the first bearing rods 3 and the second bearing rods 4 are 4-8, and both ends of the first bearing rods 3 and the second bearing rods 4 are detachably connected to the conveyor chain 2 through a limit member 5;

[0024] Among them, the four inner corners of the conveyor chain 2 are each provided with a rotating shaft 9, both ends of the rotating shaft 9 are rotatably mounted on the frame 1, two sprockets 10 are provided on the rotating shaft 9, the conveyor chain 2 is sleeved on the sprockets 10, and a first motor 11 is installed on one side of the frame 1, and the output shaft of the first motor 11 is connected to one end of a rotating shaft 9;

[0025] A water immersion tank 6 is provided inside the conveyor chain 2, and an ultrasonic detection device is installed in the water immersion tank 6. Both sides of the water immersion tank 6 are mounted on the frame 1. A lifting assembly 7 for lifting the ring forging is provided in the water immersion tank 6. A loading bin 8 is also provided on one side above the conveyor chain 2.

[0026] It should be noted that the ultrasonic detection equipment is an existing technology and can be installed in the water immersion tank 6 to generate ultrasonic waves to detect defects such as cracks, pores, inclusions, looseness, etc. inside the ring forging.

[0027] In this embodiment, the limiting member 5 includes a groove plate 51 sleeved on both ends of the first load-bearing rod 3 and the second load-bearing rod 4 and two annular slide rails 52 arranged on the inner side of the conveying chain 2. Specifically, the annular slide rail 52 is located above the water immersion tank 6 and is provided with two notches 521. The annular slide rail 52 between the two notches 521 is installed at the bottom of the water immersion tank 6 through a vertical rod. When the first load-bearing rod 3 and the second load-bearing rod 4 move to the notch 521 of the annular slide rail 52, the two ends of the first load-bearing rod 3 and the second load-bearing rod 4 move downward and separate from the groove plate 51. The groove plate 51 is installed on the conveying chain 2. The bottom and both sides of both ends of the first load-bearing rod 3 and the second load-bearing rod 4 are provided with rollers 53. The rollers 53 on both sides are in contact with the inner walls of the groove plate 51 on both sides, and the rollers 53 at the bottom roll along the annular slide rail 52.

[0028] It should be noted that the width of the notch 521 of the annular slide rail 52 is greater than the width of the first load-bearing rod 3 and the second load-bearing rod 4. Two rollers 53 are provided at the bottom of both ends of the first load-bearing rod 3 and the second load-bearing rod 4. The two rollers 53 roll along the annular slide rail 52. A roller 53 is provided on both sides of each end of the first load-bearing rod 3 and the second load-bearing rod 4, so that the first load-bearing rod 3 and the second load-bearing rod 4 can slide down along the groove plate 51 and the guide rail 73.

[0029] Furthermore, baffles 14 are provided on the top and inner sides of the first load-bearing rod 3 and the second load-bearing rod 4, and first brackets 12 are provided on both sides of the frame 1. The two annular slide rails 52 are connected to the first bracket 12. Specifically, the first bracket 12 is composed of four groups of vertical rods and horizontal rods that are perpendicular to each other. The two ends of the horizontal rods are installed on the frame 1, and the two ends of the vertical rods are connected to the annular slide rails 52.

[0030] In this embodiment, the lifting assembly 7 includes a lift 71, a second bracket 72, and guide rails 73 provided on both sides of the water immersion tank 6. The lift 71 is installed on the inner wall of the water immersion tank 6. The guide rail 73 is installed on the inner wall of the water immersion tank 6 through a cross bar. The top of the guide rail 73 is located directly below the notch 521 of the annular slide rail 52, so that the first load-bearing rod 3 and the second load-bearing rod 4 can pass through the notch 521 and slide into the annular slide rail 52.

[0031] Furthermore, the elevator 71 includes a rotating rod 711, a mounting base 712 provided at both ends of the rotating rod 711, a second motor 713 provided on the mounting base 712, and a slide 714 provided on one side of the rotating rod 711. The elevator 71 is installed in the water immersion tank 6 through the mounting base 712. The output shaft of the second motor 713 is connected to one end of the rotating rod 711. Two guide rods 715 are further provided on one side of the mounting base 712. The slide 714 is interspersed on the guide rod 715. The rotating rod 711 is provided with staggered spiral grooves 7111. The slide 71 4 slides along the spiral groove 7111 of the rotating rod 711, so that the slide 714 can reciprocate up and down. The bottom of the second bracket 72 is installed on the slide 714 of the two elevators 71, and the top of the second bracket 72 is supported by the bottom of the first load-bearing rod 3 and the second load-bearing rod 4. Specifically, the upper layer of the second bracket 72 is provided with two cross bars, and the lower layer is provided with two cross bars. The two cross bars are perpendicular to each other and connected by vertical bars. The cross bars of the upper layer are supported at the bottom of the first load-bearing rod 3 and the second load-bearing rod 4, and the two ends of the cross bars of the lower layer are installed on the slide 714 of the elevator 71.

[0032] In this embodiment, a third bracket 13 is provided on both sides of the loading bin 8, the loading bin 8 is installed on the third bracket 13, and the lower end of the third bracket 13 is installed on the frame 1. The loading bin 8 is a square frame structure, and the bottom of the loading bin 8 is bent inward to form a discharge port 81. The width of the discharge port 81 is adapted to the width of the ring forging. The top of the baffle 14 on the top of the first bearing rod 3 is flush with the top of the discharge port 81, and the top of the baffle 14 on the top of the second bearing rod 4 is flush with the bottom of the discharge port 81, so that the second bearing rod 4 can pass through the bottom of the loading bin 8, and then push the ring forging in the loading bin 8 out of the discharge port 81 through the top of the baffle 14 on the top of the first bearing rod 3.

[0033] The method for using the water-immersion ultrasonic automatic detection device for ring forgings of a wind turbine generator set of the present invention comprises the following steps:

[0034] S1. Stack multiple ring forgings in a loading bin 8, control a first motor 11 to rotate intermittently, and drive a rotating shaft 9 to rotate via the first motor 11. The rotating shaft 9 drives a sprocket 10 and a conveyor chain 2 to rotate, and the first and second carrying rods 3 and 4 rotate along with the conveyor chain 2.

[0035] S2, the second carrying rod 4 passes through the bottom of the upper hopper 8, and pushes a ring forging out of the discharge port 81 of the upper hopper 8 through the stop rod at the top of the first carrying rod 3, so that the ring forging falls on the first carrying rod 3 and the second carrying rod 4;

[0036] S3. When the first load-bearing rod 3 and the second load-bearing rod 4 move to the notch 521 of the annular slide rail 52, the first motor 11 stops and the second motor 713 is started, so that the second motor 713 drives the rotating rod 711 to rotate, and the slide 714 reciprocates up and down along the spiral groove 7111 of the rotating rod 711. When the slide 714 moves downward, the second bracket 72 is driven downward by the slide 714, and the first load-bearing rod 3 and the second load-bearing rod 4 follow the second bracket 72 to move downward and separate from the groove plate 51, pass through the notch 521 and enter the guide rail 73, until the ring forging completely falls into the water immersion tank 6, and undergoes water immersion and ultrasonic testing;

[0037] S4. After the ring forging is inspected, the second motor 713 is controlled to move the slide 714 upward, the first bearing rod 3 and the second bearing rod 4 are reset, and the first motor 11 is started to send out the inspected ring forging.

[0038] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An automatic ultrasonic water immersion detection device for ring forgings of a wind turbine generator set, characterized by: It comprises a frame (1), a conveyor chain (2) rotatably arranged on both sides of the frame (1), and a plurality of first bearing rods (3) and second bearing rods (4) staggered and arranged at intervals on the conveyor chain (2) for conveying ring forgings, wherein both ends of the first bearing rod (3) and the second bearing rod (4) are detachably connected to the conveyor chain (2) via a limiter (5); A water immersion tank (6) is provided inside the conveyor chain (2), and an ultrasonic detection device is installed in the water immersion tank (6). Both sides of the water immersion tank (6) are installed on the frame (1). A lifting component (7) for lifting the ring forging is provided in the water immersion tank (6). A loading bin (8) is also provided on one side above the conveyor chain (2).

2. The automatic ultrasonic water immersion detection device for ring forgings of a wind turbine generator set according to claim 1 is characterized in that: A rotating shaft (9) is provided at each of the four inner corners of the conveying chain (2), and both ends of the rotating shaft (9) are rotatably mounted on the frame (1). Two sprockets (10) are provided on the rotating shaft (9), and the conveying chain (2) is sleeved on the sprockets (10). A first motor (11) is installed on one side of the frame (1), and an output shaft of the first motor (11) is connected to one end of a rotating shaft (9).

3. The automatic ultrasonic water immersion detection device for ring forgings of a wind turbine generator set according to claim 2 is characterized in that: The limiting member (5) comprises a groove plate (51) sleeved on both ends of the first bearing rod (3) and the second bearing rod (4) and two annular slide rails (52) arranged on the inner side of the conveyor chain (2); the groove plate (51) is installed on the conveyor chain (2); rollers (53) are arranged at the bottom and both sides of both ends of the first bearing rod (3) and the second bearing rod (4); the rollers (53) located on both sides are in contact with the inner walls of the groove plate (51), and the rollers (53) located at the bottom roll along the annular slide rails (52).

4. The automatic ultrasonic water immersion detection device for ring forgings of a wind turbine generator set according to claim 3 is characterized in that: Baffles (14) are provided on the top and inner sides of the first bearing rod (3) and the second bearing rod (4), first brackets (12) are provided on both sides of the frame (1), and the two annular slide rails (52) are connected to the first brackets (12).

5. The automatic ultrasonic water immersion detection device for ring forgings of a wind turbine generator set according to claim 4 is characterized in that: The annular slide rail (52) is provided with two notches (521) above the water immersion tank (6). The annular slide rail (52) between the two notches (521) is installed at the bottom of the water immersion tank (6) through a vertical rod. When the first bearing rod (3) and the second bearing rod (4) move to the notches (521) of the annular slide rail (52), the two ends of the first bearing rod (3) and the second bearing rod (4) move downward and separate from the tank plate (51).

6. The automatic ultrasonic water immersion detection device for ring forgings of a wind turbine generator set according to claim 5 is characterized in that: The lifting assembly (7) comprises a lift (71) arranged on both sides of the water immersion tank (6), a second bracket (72) and guide rails (73) arranged on both sides of the lift (71), wherein the lift (71) is mounted on the inner side wall of the water immersion tank (6), and the guide rail (73) is mounted on the inner side wall of the water immersion tank (6) via a cross bar, and the top end of the guide rail (73) is located directly below the notch (521) of the annular slide rail (52).

7. The automatic ultrasonic water immersion detection device for ring forgings of a wind turbine generator set according to claim 6 is characterized in that: The elevator (71) comprises a rotating rod (711), mounting seats (712) arranged at both ends of the rotating rod (711), a second motor (713) arranged on the mounting seats (712), and a slide (714) arranged on one side of the rotating rod (711). The elevator (71) is installed in the water immersion tank (6) through the mounting seats (712). The output shaft of the second motor (713) is connected to one end of the rotating rod (711). One side of the mounting seat (712) is also provided with a There are two guide rods (715), the slide (714) is inserted into the guide rods (715), the rotating rod (711) is provided with staggered spiral grooves (7111), the slide (714) slides along the spiral grooves (7111) of the rotating rod (711), the bottom of the second bracket (72) is installed on the slides (714) of the two elevators (71), and the top of the second bracket (72) is supported on the bottom of the first bearing rod (3) and the second bearing rod (4).

8. The automatic ultrasonic water immersion detection device for ring forgings of a wind turbine generator set according to claim 7 is characterized in that: A third bracket (13) is provided on both sides of the loading bin (8), the loading bin (8) is mounted on the third bracket (13), the bottom end of the third bracket (13) is mounted on the frame (1), the loading bin (8) is a square frame structure, the bottom of the loading bin (8) is bent inward to form a discharge port (81), the width of the discharge port (81) is adapted to the width of the ring forging, the top end of the baffle (14) on the top of the first bearing rod (3) is flush with the top end of the discharge port (81), and the top end of the baffle (14) on the top of the second bearing rod (4) is flush with the bottom end of the discharge port (81).

9. The detection method based on the automatic ultrasonic detection device for ring forgings of a wind turbine generator set according to claim 8, characterized in that: The following steps are involved: S1. Stacking a plurality of ring forgings in a loading bin (8), controlling a first motor (11) to rotate intermittently, driving a rotating shaft (9) to rotate via the first motor (11), driving a sprocket (10) and a conveyor chain (2) to rotate via the rotating shaft (9), and rotating a first bearing rod (3) and a second bearing rod (4) to rotate following the conveyor chain (2); S2, the second carrying rod (4) passes through the bottom of the upper material bin (8), and pushes a ring forging out of the discharge port (81) of the upper material bin (8) through the stop rod at the top of the first carrying rod (3), so that the ring forging falls on the first carrying rod (3) and the second carrying rod (4); S3, when the first bearing rod (3) and the second bearing rod (4) move to the notch (521) of the annular slide rail (52), the first motor (11) stops, and the second motor (713) is started, so that the second motor (713) drives the rotating rod (711) to rotate, and the slide (714) moves up and down along the spiral groove (7111) of the rotating rod (711). When the slide (714) moves down, the second bracket (72) is driven to move down through the slide (714), and the first bearing rod (3) and the second bearing rod (4) follow the second bracket (72) to move down and separate from the groove plate (51) and pass through the notch (521) to enter the guide rail (73) until the ring forging completely falls into the water immersion tank (6) for water immersion and ultrasonic testing; S4. After the ring forging is inspected, the second motor (713) is controlled to move the slide (714) upward, the first bearing rod (3) and the second bearing rod (4) are reset, the first motor (11) is started, and the inspected ring forging is sent out.

Images