A helicopter blade measuring platform and method of use thereof

Abstract

The application relates to the technical field of a helicopter blade measuring platform, and discloses a convenient and accurate blade measuring platform which comprises a support frame, a driving device, a measuring device, a blade support and a clamping device; the bottom of the support frame is provided with a track, the driving device is inverted on the top of the support frame, the driving device comprises a sliding table, the driving device drives the sliding table through a servo motor, the measuring device is installed below the sliding table, and the clamping device is installed at the upper end of the blade support; the use method of the blade measuring platform is as follows: firstly, the blade support is pulled out from the inside of the support frame through the track, the blade is placed into the clamping device, then the blade support is pushed into the inside of the support frame, the servo motor is used to drive the sliding table, and the measuring device and a laser scanner are used to scan the blade at a certain speed and track. The application solves the problems that the blade needs to be clamped for multiple times, multiple people are needed to operate, and the labor efficiency is low. The application has the characteristics of accurate measurement precision and high measurement efficiency.

Description

TECHNICAL FIELD

[0001] The application relates to the field of helicopter blade measurement, in particular to a helicopter blade measurement platform and a use method thereof. BACKGROUND

[0002] The standard blade of a helicopter is a reference standard for detecting and debugging characteristic parameters of batch-produced blades of the helicopter, is an original standard for storing characteristic parameters of blades of the model of the helicopter, and is a basis for realizing single-piece interchange of the blades of the helicopter. The blade is an important component of a lifting system of a rotor of the helicopter, and the characteristic parameters of the blade directly affect flight quality of the helicopter. Each batch-produced blade needs to be detected and adjusted for dynamic balance before being installed, so that the characteristic parameters of the blade are consistent with the standard blade. Meanwhile, the blade has various size characteristics such as an expansion length, a chord length and a torsion angle, and manual measurement is usually adopted, and the precision is low. On the other hand, the blade is heavy, and a large labor intensity is needed, and multiple persons need to cooperate, and the labor efficiency is low.

[0003] The application mainly comprises an operation system, a blade positioning and clamping platform and a movement control system. The system has good dynamic quality and sufficient operation precision, the application software is advanced, reliable and efficient, the selected instruments, meters and controllers are high in precision, stable and reliable, and the use, operation, maintenance and repair are convenient. SUMMARY

[0004] The helicopter blade measurement platform and the use method thereof are provided for the above-mentioned technical deficiencies and other problems.

[0005] To solve the above-mentioned problems, the technical scheme adopted by the application is as follows: a helicopter blade measurement platform comprises a bottom plate, guide rails and support frames are fixedly installed on the bottom plate, a movement device is arranged at the top end of the support frame, the movement device comprises a sliding table, the sliding table is fixedly connected with the support frame through a U-shaped connecting plate, a servo motor is fixedly installed on one side of the sliding table, an output shaft of the servo motor is connected with a lead screw through a coupling, a lead screw nut is sleeved on the lead screw, a measurement frame is fixedly connected with the lead screw nut through a connecting plate at the top end of the measurement frame, and laser scanners are fixedly installed on both sides of the measurement frame.

[0006] A clamping device is slidably matched with the guide rails, the clamping device comprises a base and clamping components fixedly installed on the base, the base is composed of multiple aluminum profiles, track wheels are fixedly installed below the base, and the track wheels can slide on the guide rails.

[0007] Preferably, the clamping component comprises two support seats, a first chuck and a second chuck, the first chuck comprises a first pin shaft and a second pin shaft, the second chuck comprises a third pin shaft and a fourth pin shaft; two chucks are provided with rollers; the support seat is fixedly installed on the base through bolts, the top of the two support seats is connected through a mounting plate, five through holes are formed in the mounting plate, a main transmission rod is slidably installed in the middle through hole, a V-shaped groove is formed in the top end of the main transmission rod, the bottom end of the main transmission rod is hingedly connected with one end of a first transmission rod and a second transmission rod through a pin shaft, the other end of the first transmission rod is hingedly connected with one end of a third transmission rod, the other end of the second transmission rod is hingedly connected with one end of a fourth transmission rod, one end of the third transmission rod and the fourth transmission rod is connected through a spring; the third transmission rod and the fourth transmission rod pass through the through holes of the mounting plate, the middle parts thereof are hingedly connected with the pin shafts in the through holes, the other end of the third transmission rod is hingedly connected with the second pin shaft, the other end of the fourth transmission rod is hingedly connected with the fourth pin shaft, a first driven rod is hingedly connected in the leftmost through hole of the mounting plate, a second driven rod is hingedly connected in the rightmost through hole, the other end of the first driven rod is hingedly connected with the first pin shaft, and the other end of the second driven rod is hingedly connected with the third pin shaft.

[0008] A helicopter blade measuring platform and a method for using the same, characterized by the following steps:

[0009] Step one: push the support through the guide rail at the bottom of the support frame.

[0010] Step two: place the blade into the clamping component, the bottom of the blade is clamped into the V-shaped groove at the upper end of the main transmission rod, due to the gravity of the blade, the main transmission rod slides downward along the middle through hole of the mounting plate, thereby pushing the first transmission rod and the second transmission rod, the first transmission rod and the second transmission rod push the third transmission rod and the fourth transmission rod respectively, so that the spring is in a stretched state, the third transmission rod and the fourth transmission rod drive the first chuck and the second chuck to move inward respectively, at the same time, the rollers at the clamping openings of the first chuck and the second chuck prevent the blade from being clamped, thereby clamping the blade, the first driven rod and the second driven rod ensure that the first chuck and the second chuck move horizontally respectively.

[0011] Step three: push the base with the clamped blade into the designated position below the support frame.

[0012] Step four: set the trajectory according to the data to be measured, drive the sliding table to run through the control of the servo motor, drive the measuring support to run, and then drive the laser scanner to scan the geometric data of the blade.

[0013] Step five: after the data collection is completed, push the base out from below the support frame.

[0014] Step six: take out the paddle, at this time the third drive rod, fourth drive rod bottom inward under the action of the pulling force of the spring, so as to drive the first chuck, the second chuck to move outward to loosen the paddle, at the same time the spring makes the first drive rod, the second drive rod push up the main drive rod to reset the clamp for the next clamping.

[0015] The application adopts the above technical scheme, and can bring the following beneficial effects:

[0016] 1. The helicopter paddle measuring platform and the use method thereof can realize rapid measurement of the geometric size of the paddle through the cooperation of the driving device, the measuring device, the clamping device and the support frame, and can realize semi-automatic measurement.

[0017] 2. The helicopter paddle measuring platform and the use method thereof can realize rapid installation and replacement of the paddle through the clamping device. The clamp clamps the paddle through the self-gravity of the paddle, and automatically resets after the paddle is removed through the spring.

[0018] 3. The helicopter paddle measuring platform and the use method thereof realize the customization of the scanning track through the driving device, and can control the scanning speed, path and the like.

[0019] 4. The helicopter paddle measuring platform and the use method thereof can accurately collect data in real time through the measuring device, and are more accurate and standardized than traditional measurement.

[0020] 5. The helicopter paddle measuring platform and the use method thereof reduce the labor cost through the paddle base and improve the labor efficiency. DETAILED DESCRIPTION

[0021] Figure 1 It is a schematic diagram of the overall structure of the application;

[0022] Figure 2 It is a schematic diagram of the driving device of the application;

[0023] Figure 3 It is a schematic diagram of the measuring device;

[0024] Figure 4 It is a schematic diagram of the clamping device;

[0025] Figure 5 It is a schematic diagram of the support;

[0026] Figure 6 It is a schematic diagram of the first chuck;

[0027] Figure 7 It is a schematic diagram of the second chuck.

[0028] In the diagram: 1. Support frame; 2. Moving device; 21. Slide table; 214. Lead screw nut; 22. Servo motor; 23. Coupling; 24. U-shaped connecting plate; 3. Measuring device; 31. Measuring frame; 321. First laser scanner; 322. Second laser scanner; 33. Connecting plate; 4. Clamping component; 41. Main drive rod; 42. Mounting plate; 43. Support base; 44. First drive rod; 45. Second drive rod; 461. Third drive rod; 462. Fourth drive rod; 471. First driven rod; 472. Second driven rod; 481. First chuck; 4811. First pin; 4812. Second pin; 482. Second chuck; 4821. Third pin; 4822. Fourth pin; 483. Roller; 49. Spring; 5. Base; 51. Track wheel; 52. Aluminum profile; 6. Guide rail; 7. Blade; Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] like Figures 1-7 As shown, a helicopter rotor blade measurement platform includes a base plate on which a guide rail 6 and a support frame 1 are fixedly mounted. A moving device 2 is provided at the top of the support frame 1. The moving device 2 includes a slide table 21, which is fixedly connected to the support frame 1 via a U-shaped connecting plate 24. A servo motor 22 is fixedly mounted on one side of the slide table 21. The output shaft of the servo motor 22 is connected to a lead screw via a coupling 23. A lead screw nut 214 is fitted on the lead screw. The top of a measurement frame 31 is fixedly connected to the lead screw nut 214 via a connecting plate 33. A first laser scanner 321 is installed on the left side of the measurement frame 31, and a second laser scanner 322 is installed on the right side.

[0031] A clamping device is slidably fitted on the guide rail 6. The clamping device includes a base 5 and a clamping component 4 fixedly installed on the base 5. The base 5 is composed of multiple aluminum profiles 52. A track wheel 51 is fixedly installed below the base 5. The track wheel 51 can slide on the guide rail 6.

[0032] Preferably, the clamping component 4 comprises two support seats 43, a first chuck 481 comprising a first pin shaft 4811 and a second pin shaft 4812, and a second chuck 482 comprising a third pin shaft 4821 and a fourth pin shaft 4822; two chucks are each provided with a roller 483; the support seats 43 are fixedly installed on the base 5 by bolts, the top portions of the two support seats 43 are connected by an installation plate 42, five through holes are formed in the installation plate 42, the main transmission rod 41 is slidingly installed in the middle through hole, a V-shaped groove is formed in the top end of the main transmission rod 41, the bottom end of the main transmission rod 41 is hingedly connected with one end of the first transmission rod 44 and the second transmission rod 45, the other end of the first transmission rod 44 is hingedly connected with one end of the third transmission rod 461, the other end of the second transmission rod 45 is hingedly connected with one end of the fourth transmission rod 462, one end of the third transmission rod 461 and the fourth transmission rod 462 is connected by a spring 49; the third transmission rod 461 and the fourth transmission rod 462 pass through the through holes of the installation plate 42, the middle portions thereof are hingedly connected with the pin shafts in the through holes, the other end of the third transmission rod 461 is hingedly connected with the second pin shaft 4812, the other end of the fourth transmission rod 462 is hingedly connected with the fourth pin shaft 4822, the leftmost through hole in the installation plate 42 is hingedly connected with the first driven rod 471, the rightmost through hole is hingedly connected with the second driven rod 472, the other end of the first driven rod 471 is hingedly connected with the first pin shaft 4811, and the other end of the second driven rod 472 is hingedly connected with the third pin shaft 4821.

[0033] A method for using a helicopter blade measuring platform, characterized in that it comprises the following steps:

[0034] Step one: push the support 5 out through the guide rail at the bottom of the support frame 1.

[0035] Step two: place the blade 7 into the clamping component 4, the bottom of the blade 7 is clamped into the V-shaped groove at the upper end of the main transmission rod 41, due to the gravity of the blade 7, the main transmission rod 41 slides downward along the middle through hole of the installation plate 42, thereby pushing the first transmission rod 44 and the second transmission rod 45, the first transmission rod 44 and the second transmission rod 45 push the third transmission rod 461 and the fourth transmission rod 462 respectively, so that the spring is in a stretched state, the third transmission rod 461 and the fourth transmission rod 462 drive the first chuck 481 and the second chuck 482 to move inward respectively, at the same time, the rollers 483 at the clamping openings of the first chuck 481 and the second chuck 482 prevent the blade from being clamped, thereby clamping the blade, the first driven rod 471 and the second driven rod 472 ensure that the first chuck 481 and the second chuck 482 remain horizontal movement.

[0036] Step three: push the base 5 with the clamped blade into the designated position below the support frame 1.

[0037] Step four: set the track according to the data to be measured, drive the slide 21 to run by controlling the servo motor 22, drive the measuring support 31 to run, and then drive the laser scanner to scan the geometric data of the blade 7.

[0038] Step five: after the data collection is completed, the base 5 is pushed out from under the support frame 1.

[0039] Step six: take out the blade 7 upwards, at this time the third transmission rod 461 and the fourth transmission rod 462 are inwardly collected at the bottom under the pulling force of the spring 49, thereby driving the first chuck 481 and the second chuck 482 to move outward to loosen the blade 7, and at the same time the spring 49 pushes the first transmission rod 44 and the second transmission rod 45 upward to push the main transmission rod 41, so that the clamp is reset for the next clamping.

[0040] The method provided by the application is described in detail above. The principle and implementation mode of the application are described by applying specific examples in this paper, and the above examples are only used to help understand the method of the application and its core idea. It should be pointed out that for ordinary skilled persons in the technical field, some improvements and modifications can be made to the application without departing from the principle of the application, and these improvements and modifications also fall within the protection scope of the claims of the application.

Claims

1. A helicopter blade measuring platform, characterized by, The utility model provides a kind of laser scanning device, including bottom plate, guide rail (6) and support frame (1) are fixedly installed on bottom plate, support frame (1) top end is provided with moving device (2), moving device (2) includes sliding table (21), sliding table (21) is fixedly connected with support frame (1) by U type connecting plate (24), one side of sliding table (21) is fixedly installed with servo motor (22), the output shaft of servo motor (22) is connected with lead screw by shaft coupling (23), lead screw nut (214) is sleeved on lead screw, the top of measuring frame (31) is fixedly connected with lead screw nut by connecting plate (33), the left side of measuring frame (31) is installed first laser scanner (321), and the right side is installed second laser scanner (322); The guide rail (6) is slidably connected with a clamping device, the clamping device includes a base (5) and a clamping component (4) fixedly installed on the base (5), the base (5) is composed of a plurality of aluminum profiles (52), and a track wheel (51) is fixedly installed below the base (5) and can slide on the guide rail (6); The clamping component (4) includes two support seats (43), a first chuck (481) and a second chuck (482), the first chuck (481) includes a first pin shaft (4811) and a second pin shaft (4812), the second chuck (482) includes a third pin shaft (4821) and a fourth pin shaft (4822); the support seats (43) are fixedly installed on the base (5) by bolts, the top portions of the two support seats (43) are connected by an installation plate (42), five through holes are formed in the installation plate (42), a main transmission rod (41) is slidably installed in the middle through hole, a V-shaped groove is formed in the top end of the main transmission rod (41), the bottom end of the main transmission rod (41) is hingedly connected to one end of a first transmission rod (44) and a second transmission rod (45) by a pin shaft, the other end of the first transmission rod (44) is hingedly connected to one end of a third transmission rod (461), the other end of the second transmission rod (45) is hingedly connected to one end of a fourth transmission rod (462), one end of the third transmission rod (461) and the fourth transmission rod (462) are connected by a spring (49); the third transmission rod (461) and the fourth transmission rod (462) pass through the through holes of the installation plate (42), and the middle portions thereof are hingedly connected to the pin shafts in the through holes, the other end of the third transmission rod (461) is hingedly connected to the second pin shaft (4812), the other end of the fourth transmission rod (462) is hingedly connected to the fourth pin shaft (4822), a first driven rod (471) is hingedly connected in the leftmost through hole of the installation plate (42), a second driven rod (472) is hingedly connected in the rightmost through hole, the other end of the first driven rod (471) is hingedly connected to the first pin shaft (4811), and the other end of the second driven rod (472) is hingedly connected to the third pin shaft (4821).

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