Device and method for detecting production strength of bolt for fan blade

Abstract

The invention discloses a fan blade bolt production strength detection device and method, and relates to the technical field of strength detection.The fan blade bolt production strength detection device comprises a rack, a fixing mechanism and a linear moving mechanism, the fixing mechanism comprises a driver and a clamping block, a rotating disc is installed at the output end of the driver, and a groove is formed in the side, away from the driver, of the rotating disc; an electric telescopic rod is fixedly installed at the position, close to the groove, of the outer side of the driver, the linear moving mechanism comprises a lead screw and a servo motor, a supporting plate is installed at the thread position of the outer side of the lead screw, a connecting sliding block is fixedly installed on the outer side of the supporting plate, and a square block is fixedly installed at the top of the supporting plate; a limiting protruding block is fixedly installed on the side of the top of the square block, and an inner threaded hole is formed in the center of the interior of the square block. According to the device and method for detecting the production strength of the bolt for the fan blade, the effect of diversified detection is achieved, the tensile test and the anti-torque test are integrated, slippage is not prone to occurring, and safety and reliability are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of strength detection, and in particular to a production strength detection device and a detection method for bolts used in fan blades. Background Art

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. Commonly referred to fans include ventilators, blowers, and wind turbines. Gas compression and gas delivery machinery is a machine that converts rotational mechanical energy into gas pressure energy and kinetic energy and delivers the gas. The main structural components of the fan are blades, casing, air inlet, bracket, motor, pulley, coupling, muffler, transmission parts, etc. Among them, the blade is one of the important parts of the fan. Bolts are required to connect the blades. Therefore, the quality of the bolts directly affects the connection quality of the blades. Generally, bolts have hexagonal heads, round heads, square heads, countersunk heads, etc., among which hexagonal heads are the most commonly used. When producing bolts, the bolts need to be strength tested.

[0003] At present, when testing the production strength of transmission bolts, the testing function is single, which makes it inconvenient to conduct linear tensile and torque resistance tests, making it impossible for the equipment to integrate tensile and torque resistance tests. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A bolt production strength detection device for fan blades, comprising:

[0005] A rack, wherein a strip-shaped hole is provided in the middle of the top of the rack;

[0006] A fixing mechanism, which is used to clamp the bolts to be inspected, and is installed on the side of the top of the frame and close to the strip hole;

[0007] The fixing mechanism comprises a driver and a clamping block, wherein the driver is installed at the side of the top of the frame and close to the bar-shaped hole, a rotating disk is installed at the output end of the driver, a groove is provided on the side of the rotating disk away from the driver, and the clamping block is slidably installed between the groove and the rotating disk, an electric telescopic rod is fixedly installed on the outer side of the driver and close to the groove, the telescopic end of the electric telescopic rod is fixedly installed between the outer side of the clamping block, a clamping groove is provided on the clamping surface of the outer side of the clamping block, the hexagonal end of the bolt to be detected is brought close to the rotating disk, and the bolt is placed horizontally, and the extension of the telescopic end of the electric telescopic rod can be used to apply a driving force to the clamping block, so that three clamping blocks evenly distributed on the outer side of the rotating disk move together, so that the clamping groove is stuck on the outer side of the hexagonal end of the bolt, and a clamping force is applied to the hexagonal end of the bolt to fix the bolt, which is not easy to slip off;

[0008] A linear moving mechanism, which is used to perform tensile testing on the bolts, and is installed on the top of the frame and close to the strip hole;

[0009] In which, the linear movement mechanism includes a screw rod and a servo motor, the screw rod is rotatably installed in the middle of the top of the inner cavity of the frame through a bracket, the servo motor is fixedly installed on the top of the inner cavity of the frame and close to the servo motor, the output end of the servo motor is fixedly installed through a coupling and the screw rod, a support plate is installed at the thread on the outer side of the screw rod, a connecting slider is fixedly installed on the outer side of the support plate, the connecting slider is slidably installed with the top of the frame and close to the position of the strip hole, a square block is fixedly installed on the top of the support plate, a limited protrusion block is fixedly installed on the side of the top of the square block, an internal threaded hole is opened at the center of the square block, and the screw rod can be driven to rotate by rotating the output end of the servo motor, and the support plate and the screw rod are threadedly installed, and the connecting slider can move along the edge of the inner side of the strip hole to guide the support plate, so that the square block is driven to move, which is convenient for strength testing of the bolts.

[0010] Preferably, there are three grooves, and the three grooves are evenly distributed on a side of the rotating disk away from the driver, and the slot is V-shaped.

[0011] When the torque detection is completed, the output end of the driver drives the rotating disk to rotate in the opposite direction, removes the bolt that has been subjected to the torque detection, and starts the electric telescopic rod to work again, and uses the telescopic end of the electric telescopic rod to contract to loosen the bolt.

[0012] Preferably, the position of the electric telescopic rod corresponds to the position of the groove, there are three clamping blocks, and the three grooves are evenly installed on the outside of the rotating disk and close to the grooves.

[0013] Preferably, the screw rod and the servo motor are installed at the same height, the screw rod is installed directly below the strip hole, and the support plate passes through the middle of the strip hole.

[0014] Preferably, there are two groups of connecting sliders, and the two groups of connecting sliders are symmetrically installed along the support plate. Multiple groups of connecting sliders can be used to support the support plate to increase the strength of the support plate itself, making it less prone to bending and deformation. The position of the square block is installed at the same height as the rotating disk.

[0015] Preferably, an auxiliary mechanism is installed on the top of the frame near the bar hole, and the auxiliary mechanism includes a rectangular guide rail, which is fixedly installed on the top of the frame near the bar hole by screws, and a right-angle frame is slidably installed on the top of the rectangular guide rail, and a supporting frame is fixedly installed on the top of the right-angle frame, and the position of the supporting frame corresponds to the position of the square block, and a circular hole is opened on the side of the supporting frame near the rotating disk, and a U-shaped notch is opened on the side of the top of the supporting frame, and the opening of the U-shaped notch faces the limiting protrusion block, and a clamping assembly is installed on the top of the supporting frame near the U-shaped notch, and the open end of the open caliper is clamped on the limiting protrusion block, and under the guidance of the rectangular guide rail and supported by the right-angle frame, the supporting frame will move synchronously with the square block, which is helpful for detecting the bolts and connecting the structures together by utilizing the interaction between the structures.

[0016] Preferably, there are two right-angle frames, and the two right-angle frames are symmetrically installed along the supporting frame, and the supporting frame is installed directly above the strip hole.

[0017] A bolt is passed through the center of the circular hole. When the square block is close to the external thread of the bolt that needs to be inspected, the driver is turned on to work. The output end of the driver is used to drive the rotating disk to rotate, so that the bolt clamped and fixed by the clamping block can be rotated together. Along with the movement of the square block, the bolt that needs to be inspected is threadedly matched with the internal threaded hole through the drive of the driver and the servo motor, so that both ends of the bolt that needs to be inspected can be fixed.

[0018] The limiting protrusion block is embedded in the U-shaped notch to limit the square block. At the same time, the end of the square block is embedded in the supporting frame so that the square block is supported by the supporting frame, thereby increasing the strength of the square block itself, making the overall structure less likely to deform, and promoting accurate testing of the bolt torque.

[0019] Preferably, the clamping assembly includes a connecting pin, the bottom end of the connecting pin is fixedly installed at the side of the top of the supporting frame, an open caliper is rotatably installed in the middle of the outer cylindrical surface of the connecting pin, the open end of the open caliper is clamped in the middle of the outer side of the limiting protrusion block, and a tension spring is fixedly installed at the bend on the inner side of the open caliper. When it is necessary to test the tensile strength of the bolt, the driver suspends work so that the bolt to be tested is in a static state, and the symmetrical open calipers on both sides are opened, and the tension spring is stretched and the lead screw is driven to rotate in the opposite direction through the protruding end of the servo motor, so that the limiting protrusion block can be moved out of the U-shaped notch, and the square block continues to move to the side away from the supporting frame, so that the bolt to be tested can be tensile tested, and the mutual connection between the structures is fully utilized to integrate the linear tensile and torque resistance tests.

[0020] Preferably, the opening of the opening caliper is in contact with the outer side of the limiting protrusion block, there are two opening calipers, and the two opening calipers are symmetrically installed along the limiting protrusion block.

[0021] A method for detecting the production strength of bolts for fan blades comprises the following steps:

[0022] Step 1: Place the hexagonal end of the bolt to be tested close to the rotating disk, and place the bolt horizontally. Use the extension of the telescopic end of the electric telescopic rod to apply a driving force to the clamping block, so that the three clamping blocks evenly distributed on the outside of the rotating disk move together, so that the slot is clamped on the outside of the hexagonal end of the bolt, and a clamping force is applied to the hexagonal end of the bolt;

[0023] Step 2: Turn on the servo motor to work, use the output end of the servo motor to rotate, drive the screw rod to rotate, and support it on the support plate, so that the square block is driven to move, and use the open end of the open caliper to clamp on the limit protrusion block, and under the guidance of the rectangular guide rail, through the support of the right-angle frame, the support frame will move synchronously with the square block;

[0024] Step 3: Use a bolt to pass through the center of the circular hole. When the square block is close to the external thread of the bolt to be tested, turn on the driver to work, and use the output end of the driver to drive the rotating disk to rotate, so that the bolt clamped and fixed by the clamping block can rotate together, so that the bolt to be tested is threadedly matched with the internal thread hole;

[0025] Step 4: Pause the servo motor from working, and continue to drive the rotating disk to rotate through the output end of the driver, so that the bolt can be subjected to torque force, and the bolt is fixed at both ends to perform torque detection;

[0026] Step 5: Use the limiting protrusion block to be embedded into the U-shaped notch to limit the square block, and at the same time, the end of the square block is embedded into the supporting frame so that the square block is supported by the supporting frame, thereby increasing the strength of the square block itself, making the overall structure less likely to deform, and promoting accurate testing of the bolt torque;

[0027] Step 6: When the tensile strength of the bolt needs to be tested, take a new bolt to be tested and repeat the actions of steps 1 to 3. The driver stops working so that the bolt to be tested is in a stationary state, and the symmetrical opening calipers on both sides are opened. The extended end of the servo motor drives the lead screw to rotate in the opposite direction, and the square block continues to move to the side away from the support frame, so that the bolt to be tested can be tensile tested.

[0028] The present invention provides a device and method for detecting the production strength of bolts for fan blades. It has the following beneficial effects:

[0029] 1. The production strength detection device and detection method of bolts for fan blades are as follows: the hexagonal end of the bolt to be detected is placed close to the rotating disk, and the bolt is placed horizontally. By extending the telescopic end of the electric telescopic rod, a driving force can be applied to the clamping block, so that three clamping blocks evenly distributed on the outside of the rotating disk move together, so that the slot is clamped on the outside of the hexagonal end of the bolt, and a clamping force is applied to the hexagonal end of the bolt to fix the bolt, making it less likely to slip.

[0030] 2. The bolt production strength detection device and detection method for fan blades utilizes the output end of the servo motor to rotate, which can drive the screw rod to rotate, and utilizes the connecting slider to move along the inner edge of the strip hole to guide the support plate, so that the square block is driven to move, and the open end of the open caliper is clamped on the limiting protrusion block, and under the guidance of the rectangular guide rail and supported by the right-angle frame, the support frame will move synchronously with the square block, which is helpful for the detection of the bolts.

[0031] 3. The bolt production strength detection device and detection method for fan blades utilizes the output end of the driver to drive the rotating disk to rotate, so that the bolts clamped and fixed by the clamping block can rotate together, and along with the movement of the square block, through the drive of the driver and the drive of the servo motor, the bolts to be detected are threadedly matched with the internal threaded hole, so that both ends of the bolts to be detected can be fixed.

[0032] 4. The strength detection device and method for the bolt production of fan blades utilizes the rotating disk to stop rotating and continues to drive the rotating disk to rotate through the output end of the driver, so that the bolt can be subjected to torque force, and the two ends of the bolt are fixed to prevent slipping, thereby performing torque detection on the bolt.

[0033] 5. The bolt production strength detection device and detection method for fan blades utilizes a limiting protrusion block to be embedded in the U-shaped notch so that the square block is limited. At the same time, the end of the square block is embedded in the supporting frame so that the square block is supported by the supporting frame, thereby increasing the strength of the square block itself, making the overall structure less likely to deform, and promoting accurate testing of the bolt torque.

[0034] 6. The production strength detection device and detection method for bolts for fan blades suspends the operation of the driver so that the bolt to be detected is in a static state, and the symmetrical opening calipers on both sides are opened, and the tension spring is stretched, and the extended end of the servo motor drives the lead screw to rotate in the opposite direction, so that the limiting protrusion block can be moved out of the U-shaped notch, and the square block continues to move to the side away from the supporting frame, so that the bolt to be detected can be stretched. The connection between the structures is fully utilized to integrate the linear tensile and torque resistance tests. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a block diagram of a method for detecting the production strength of bolts for fan blades according to the present invention;

[0036] Figure 2 This is a schematic diagram of the overall structure of a bolt production strength detection device for fan blades according to the present invention;

[0037] Figure 3 It is a schematic diagram of the cross-sectional structure of a bolt production strength detection device for fan blades of the present invention;

[0038] Figure 4 It is a schematic diagram of the connection structure between the fixing mechanism and the frame of the present invention;

[0039] Figure 5 It is a schematic diagram of the overall structure of the fixing mechanism of the present invention;

[0040] Figure 6 It is a schematic diagram of the connection structure between the linear moving mechanism and the frame of the present invention;

[0041] Figure 7 It is a schematic diagram of the overall structure of the linear motion mechanism of the present invention;

[0042] Figure 8 It is a schematic diagram of the connection structure between the auxiliary mechanism and the frame of the present invention;

[0043] Fig. 9 It is a schematic diagram of the overall structure of the clamping assembly of the present invention.

[0044] In the figure: 1. frame; 2. strip hole; 3. fixing mechanism; 4. linear moving mechanism; 5. auxiliary mechanism; 31. driver; 32. rotating disk; 33. groove; 34. clamping block; 35. electric telescopic rod; 36. slot; 41. screw rod; 42. servo motor; 43. support plate; 44. connecting slider; 45. square block; 46. limiting protrusion block; 47. internal threaded hole; 51. rectangular guide rail; 52. right angle frame; 53. supporting frame; 54. round hole; 55. U-shaped notch; 56. clamping assembly; 561. connecting pin; 562. open caliper; 563. tension spring. DETAILED DESCRIPTION

[0045] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0046] The first embodiment, as Figure 1-Figure 5 As shown, the present invention provides a technical solution: a bolt production strength detection device for fan blades, comprising:

[0047] A frame 1, wherein a strip-shaped hole 2 is provided in the middle of the top of the frame 1;

[0048] A fixing mechanism 3, which is used to clamp the bolts to be inspected, and is installed on the side of the top of the frame 1 and close to the strip hole 2;

[0049] The fixing mechanism 3 includes a driver 31 and a clamping block 34. The driver 31 is installed at the side of the top of the frame 1 and close to the strip hole 2. A rotating disk 32 is installed at the output end of the driver 31. A groove 33 is provided on the side of the rotating disk 32 away from the driver 31. The clamping block 34 is slidably installed between the groove 33 and the rotating disk 32. An electric telescopic rod 35 is fixedly installed on the outer side of the driver 31 and close to the groove 33. The telescopic end of the electric telescopic rod 35 is fixedly installed between the outer side of the clamping block 34. A clamping groove 36 is provided on the clamping surface of the outer side of the clamping block 34. The staff brings the hexagonal end of the bolt to be inspected close to the rotating disk 32 and places the bolt horizontally. At this time, the staff turns on the electric telescopic rod 35 to work. By extending the telescopic end of the electric telescopic rod 35, a driving force can be applied to the clamping block 34, so that three clamping blocks 34 evenly distributed on the outer side of the rotating disk 32 move together, so that the clamping groove 36 is stuck on the outer side of the hexagonal end of the bolt, and a clamping force is applied to the hexagonal end of the bolt to fix the bolt.

[0050] There are three grooves 33 , and the three grooves 33 are evenly distributed on a side of the rotating disk 32 away from the driver 31 , and the locking groove 36 is in a V shape.

[0051] When the torque detection is completed, the output end of the driver 31 drives the rotating disk 32 to rotate in the opposite direction, removes the bolt that has been subjected to the torque detection, and starts the electric telescopic rod 35 to work again, and uses the telescopic end of the electric telescopic rod 35 to contract to loosen the bolt.

[0052] The position of the electric telescopic rod 35 corresponds to the position of the groove 33 . There are three clamping blocks 34 , and the three grooves 33 are evenly installed on the outer side of the rotating disk 32 and close to the groove 33 .

[0053] The second embodiment, as Figure 1-Figure 7 As shown, based on the first embodiment:

[0054] A linear moving mechanism 4, which is used to perform tensile testing on the bolts, and is installed on the top of the frame 1 and close to the strip hole 2;

[0055] The linear motion mechanism 4 includes a screw rod 41 and a servo motor 42. The screw rod 41 is rotatably mounted at the middle of the top of the inner cavity of the frame 1 through a bracket. The servo motor 42 is fixedly mounted at the top of the inner cavity of the frame 1 and close to the servo motor 42. The output end of the servo motor 42 is fixedly mounted between the screw rod 41 through a coupling. A support plate 43 is installed at the threaded part on the outer side of the screw rod 41. A connecting slider 44 is fixedly mounted on the outer side of the support plate 43. The connecting slider 44 is slidably mounted on the top of the frame 1 and close to the strip hole 2. A square block 45 is fixedly installed on the top of the support plate 43, and a limited protrusion block 46 is fixedly installed on the side of the top of the square block 45. An internal threaded hole 47 is opened at the center of the inside of the square block 45. The staff turns on the servo motor 42 to work, and the output end of the servo motor 42 is rotated to drive the screw rod 41 to rotate. The support plate 43 and the screw rod 41 are threadedly installed, and the connecting slider 44 can move along the edge of the inner side of the strip hole 2 to guide the support plate 43, so that the square block 45 is driven to move.

[0056] The screw rod 41 and the servo motor 42 are installed at the same height. The screw rod 41 is installed just below the strip hole 2 , and the support plate 43 passes through the middle of the strip hole 2 .

[0057] There are two groups of connecting sliders 44, and the two groups of connecting sliders 44 are symmetrically installed along the support plate 43. Multiple groups of connecting sliders 44 can be used to support the support plate 43 to increase the strength of the support plate 43 itself, making it less prone to bending and deformation. The position of the square block 45 is installed at the same height as the rotating disk 32.

[0058] The third embodiment, as Figure 1-Figure 9 As shown, based on the first and second embodiments:

[0059] An auxiliary mechanism 5 is installed at the top of the frame 1 and near the strip hole 2. The auxiliary mechanism 5 includes a rectangular guide rail 51, which is fixedly installed on the top of the frame 1 and near the strip hole 2 by screws. A right-angle frame 52 is slidably installed on the top of the rectangular guide rail 51, and a supporting frame 53 is fixedly installed on the top of the right-angle frame 52. The position of the supporting frame 53 corresponds to the position of the square block 45. A circular hole 54 is provided on the side of the supporting frame 53 close to the rotating disk 32, and a U-shaped notch 55 is provided on the side of the top of the supporting frame 53. The opening of the U-shaped notch 55 faces the limiting protrusion block 46. A clamping assembly 56 is installed on the top of the supporting frame 53 and near the U-shaped notch 55. The open end of the open caliper 562 is clamped on the limiting protrusion block 46, and under the guidance of the rectangular guide rail 51, the supporting frame 53 is supported by the right-angle frame 52, so that the support frame 53 will move synchronously with the square block 45, which is helpful for the detection of bolts.

[0060] There are two right-angle frames 52 , and the two right-angle frames 52 are symmetrically installed along the supporting frame 53 , and the supporting frame 53 is installed right above the strip hole 2 .

[0061] By passing a bolt through the center of the circular hole 54, when the square block 45 is close to the external thread of the bolt to be inspected, the driver 31 is turned on to work, and the output end of the driver 31 is used to drive the rotating disk 32 to rotate, so that the bolt clamped and fixed by the clamping block 34 can be rotated together, and along with the movement of the square block 45, the bolt to be inspected is threadedly matched with the internal threaded hole 47 through the drive of the driver 31 and the drive of the servo motor 42, so that both ends of the bolt to be inspected can be fixed.

[0062] The limiting protrusion block 46 is embedded in the U-shaped notch 55, so that the square block 45 is limited. At the same time, the end of the square block 45 is embedded in the supporting frame 53, so that the square block 45 is supported by the supporting frame 53, thereby increasing the strength of the square block 45 itself, making the overall structure less likely to deform, and promoting accurate testing of the bolt torque.

[0063] The clamping assembly 56 includes a connecting pin 561, the bottom end of which is fixedly installed at the side of the top of the supporting frame 53, and an open caliper 562 is rotatably installed in the middle of the outer cylindrical surface of the connecting pin 561. The open end of the open caliper 562 is clamped in the middle of the outer side of the limiting protrusion block 46, and a tension spring 563 is fixedly installed at the bend on the inner side of the open caliper 562. When it is necessary to test the tensile strength of the bolt, the driver 31 suspends work, so that the bolt to be tested is in a static state, and the symmetrical open calipers 562 on both sides are opened, and the tension spring 563 is stretched, and the lead screw 41 is driven to rotate in the opposite direction through the protruding end of the servo motor 42, so that the limiting protrusion block 46 can be moved out of the U-shaped notch 55, and the square block 45 continues to move to the side away from the supporting frame 53, so that the bolt to be tested can be stretched.

[0064] The opening of the opening caliper 562 is in contact with the outer side of the limiting protrusion block 46 . There are two opening calipers 562 , and the two opening calipers 562 are symmetrically installed along the limiting protrusion block 46 .

[0065] When in use, firstly, the hexagonal end of the bolt to be tested is brought close to the rotating disk 32, and the bolt is placed horizontally. The extension of the telescopic end of the electric telescopic rod 35 is used to apply a driving force to the clamping block 34, so that the three clamping blocks 34 evenly distributed on the outside of the rotating disk 32 move together, so that the card slot 36 is clamped on the outside of the hexagonal end of the bolt, and a clamping force is applied to the hexagonal end of the bolt, and the servo motor 42 is turned on to work, and the output end of the servo motor 42 is rotated to drive the screw rod 41 to rotate, and supported by the support plate 43, so that the square block 45 is driven to move, and the open end of the open caliper 562 is clamped on the limiting protrusion block 46, and under the guidance of the rectangular guide rail 51, through the support of the right-angle frame 52, the support frame 53 will move synchronously with the square block 45;

[0066] By using a bolt to pass through the center of the circular hole 54, when the square block 45 is close to the external thread of the bolt to be tested, the driver 31 is turned on to work, and the output end of the driver 31 is used to drive the rotating disk 32 to rotate, so that the bolt clamped and fixed by the clamping block 34 can be rotated together, so that the bolt to be tested is threadedly matched with the internal thread hole 47, and the servo motor 42 is stopped from working, and the rotating disk 32 is continued to be driven to rotate by the output end of the driver 31, so that the bolt is subjected to torque force, and the bolt is fixed at both ends, and the bolt is subjected to torque detection;

[0067] The limiting protrusion 46 is embedded into the U-shaped notch 55, so that the square block 45 is limited, and the end of the square block 45 is embedded into the supporting frame 53, so that the square block 45 is supported by the supporting frame 53, thereby increasing the strength of the square block 45 itself, making the overall structure less likely to deform, and promoting accurate testing of the bolt torque;

[0068] When it is necessary to test the tensile strength of the bolt, a new bolt to be tested is taken again, and the above-mentioned action is repeated to clamp the bolt to be tested, and the driver 31 is suspended so that the bolt to be tested is in a stationary state, and the symmetrical opening calipers 562 on both sides are opened, and the lead screw 41 is driven to rotate in the opposite direction by the extended end of the servo motor 42, and the square block 45 is continuously moved to the side away from the supporting frame 53, so that the bolt to be tested can be subjected to tensile testing.

[0069] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A bolt production strength detection device for fan blades, characterized in that: include: A frame (1), wherein a strip-shaped hole (2) is provided in the middle of the top of the frame (1); A fixing mechanism (3), the fixing mechanism (3) is used to clamp the bolts to be inspected, and the fixing mechanism (3) is installed on the side of the top of the frame (1) and close to the strip hole (2); The fixing mechanism (3) comprises a driver (31) and a clamping block (34); the driver (31) is installed at the side of the top of the frame (1) and close to the strip hole (2); a rotating disk (32) is installed at the output end of the driver (31); a groove (33) is provided on the side of the rotating disk (32) away from the driver (31); the clamping block (34) is installed by sliding between the groove (33) and the rotating disk (32); an electric telescopic rod (35) is fixedly installed on the outer side of the driver (31) and close to the groove (33); the telescopic end of the electric telescopic rod (35) is fixedly installed between the outer side of the clamping block (34); and a clamping groove (36) is provided on the clamping surface of the outer side of the clamping block (34); A linear motion mechanism (4), the linear motion mechanism (4) is used to perform tensile testing on the bolts, and the linear motion mechanism (4) is installed on the top of the frame (1) and close to the strip hole (2); The linear motion mechanism (4) comprises a screw rod (41) and a servo motor (42), wherein the screw rod (41) is rotatably mounted at the middle of the top of the inner cavity of the frame (1) through a bracket, and the servo motor (42) is fixedly mounted at the top of the inner cavity of the frame (1) and close to the servo motor (42), and the output end of the servo motor (42) is fixedly mounted between the screw rod (41) and the screw rod (41) through a coupling, and a support plate (43) is mounted at the threaded portion of the outer side of the screw rod (41), and a connecting slider (44) is fixedly mounted at the outer side of the support plate (43), and the connecting slider (44) is slidably mounted at the top of the frame (1) and close to the strip hole (2), and a square block (45) is fixedly mounted at the top of the support plate (43), and a limiting protrusion block (46) is fixedly mounted at the side of the top of the square block (45), and an internal threaded hole (47) is opened at the center of the inner side of the square block (45).

2. A bolt production strength detection device for fan blades according to claim 1, characterized in that: There are three grooves (33), and the three grooves (33) are evenly distributed on a side of the rotating disk (32) away from the driver (31), and the clamping groove (36) is V-shaped.

3. A bolt production strength detection device for fan blades according to claim 1, characterized in that: The position of the electric telescopic rod (35) corresponds to the position of the groove (33), there are three clamping blocks (34), and the three grooves (33) are evenly installed on the outside of the rotating disk (32) and close to the groove (33).

4. A bolt production strength detection device for fan blades according to claim 1, characterized in that: The screw rod (41) and the servo motor (42) are installed at the same height. The screw rod (41) is installed directly below the strip hole (2), and the support plate (43) passes through the middle of the strip hole (2).

5. A bolt production strength detection device for fan blades according to claim 1, characterized in that: The connecting sliders (44) are in two groups, and the two groups of connecting sliders (44) are symmetrically installed along the supporting plate (43). The position of the square block (45) is installed at the same height as the rotating disk (32).

6. A bolt production strength detection device for fan blades according to claim 1, characterized in that: An auxiliary mechanism (5) is installed at the top of the frame (1) and near the strip hole (2). The auxiliary mechanism (5) comprises a rectangular guide rail (51). The rectangular guide rail (51) is fixedly installed at the top of the frame (1) and near the strip hole (2) by means of screws. A right-angle frame (52) is slidably installed at the top of the rectangular guide rail (51). A supporting frame (53) is fixedly installed at the top of the right-angle frame (52). The position of the supporting frame (53) corresponds to the position of the square block (45). A circular hole (54) is provided on one side of the supporting frame (53) near the rotating disk (32). A U-shaped notch (55) is provided at the side of the top of the supporting frame (53). The opening of the U-shaped notch (55) faces the limiting protrusion block (46). A clamping assembly (56) is installed at the top of the supporting frame (53) and near the U-shaped notch (55).

7. A wind turbine blade bolt production strength detection device according to claim 6, characterized in that: There are two right-angle frames (52), and the two right-angle frames (52) are symmetrically installed along the supporting frame (53), and the supporting frame (53) is installed directly above the strip hole (2).

8. A bolt production strength detection device for fan blades according to claim 6, characterized in that: The clamping assembly (56) includes a connecting pin (561), the bottom end of the connecting pin (561) is fixedly installed at the side of the top of the supporting frame (53), an open caliper (562) is rotatably installed in the middle of the outer cylindrical surface of the connecting pin (561), the open end of the open caliper (562) is clamped in the middle of the outer side of the limiting protrusion block (46), and a tension spring (563) is fixedly installed at the bending part on the inner side of the open caliper (562).

9. A bolt production strength detection device for fan blades according to claim 8, characterized in that: The opening of the opening caliper (562) is in contact with the outer side of the limiting protrusion block (46), there are two opening calipers (562), and the two opening calipers (562) are symmetrically installed along the limiting protrusion block (46).

10. A method for detecting the production strength of bolts for wind turbine blades, implemented based on a device for detecting the production strength of bolts for wind turbine blades as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Place the hexagonal end of the bolt to be inspected close to the rotating disk (32), and place the bolt horizontally. Use the extension of the telescopic end of the electric telescopic rod (35) to apply a driving force to the clamping block (34), so that three clamping blocks (34) evenly distributed on the outside of the rotating disk (32) move together, so that the clamping groove (36) is clamped on the outside of the hexagonal end of the bolt, and a clamping force is applied to the hexagonal end of the bolt; Step 2: Turn on the servo motor (42) to work, use the output end of the servo motor (42) to rotate, drive the screw rod (41) to rotate, and support it on the support plate (43), so that the square block (45) is driven to move, and use the open end of the open caliper (562) to clamp on the limit protrusion block (46), and under the guidance of the rectangular guide rail (51), through the support of the right angle frame (52), the support frame (53) will move synchronously with the square block (45); Step 3: Use a bolt to pass through the center of the circular hole (54). When the square block (45) is close to the external thread of the bolt to be inspected, turn on the driver (31) to work, and use the output end of the driver (31) to drive the rotating disk (32) to rotate, so that the bolt clamped and fixed by the clamping block (34) can rotate together, so that the bolt to be inspected is threadedly matched with the internal thread hole (47); Step 4: Pause the servo motor (42) from working, and continue to drive the rotating disk (32) to rotate through the output end of the driver (31), so that the bolt is subjected to torque force, and the bolt is tested for torque by fixing both ends of the bolt; Step 5: Use the limiting protrusion block (46) to be embedded into the U-shaped notch (55) so that the square block (45) is limited, and at the same time, the end of the square block (45) is embedded into the supporting frame (53) so that the square block (45) is supported by the supporting frame (53), thereby increasing the strength of the square block (45) itself, making the overall structure less likely to deform, and promoting accurate testing of the bolt torque; Step 6: When the tensile strength of the bolt needs to be tested, a new bolt to be tested is taken again and the actions of steps 1 to 3 are repeated, and the driver (31) is suspended so that the bolt to be tested is in a stationary state, and the symmetrical opening calipers (562) on both sides are opened, and the screw rod (41) is driven to rotate in the opposite direction through the extended end of the servo motor (42), and the square block (45) is continuously moved to the side away from the supporting frame (53), so that the bolt to be tested can be subjected to tensile testing.

Images