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CN-122016153-A - Full-automatic gas turbine blade weight moment detection workstation

CN122016153ACN 122016153 ACN122016153 ACN 122016153ACN-122016153-A

Abstract

The invention discloses a full-automatic gas turbine blade weight moment detection workstation which comprises a conveying line assembly, a mechanical arm assembly, a control cabinet, a weight moment measurement assembly and a supporting platform, wherein two conveying line assemblies are arranged on one side of the mechanical arm assembly, a force sensor A and a force sensor B are arranged at the top end of the supporting platform, the weight moment measurement assembly is supported by the force sensor A and the force sensor B, the weight moment measurement assembly comprises a guide rail, a first supporting assembly, a first supporting block, a second supporting block and a second supporting assembly, the first supporting block and the second supporting block are respectively arranged at two ends of the guide rail, the second supporting assembly is arranged on the second supporting block in an adjustable mode, and the first supporting assembly is arranged on the guide rail in a sliding mode. According to the invention, the mechanical arm runs at a high speed according to the preset program, no manual waiting is needed, the detection efficiency is greatly improved, meanwhile, the measurement error caused by the manual operation difference is eliminated, and the data accuracy is ensured.

Inventors

  • SUI YAMIN
  • ZHONG YUN
  • FENG SHIXIN

Assignees

  • 苏州清航动力科技有限公司

Dates

Publication Date
20260512
Application Date
20260410

Claims (10)

  1. 1. The full-automatic gas turbine blade weight moment detection workstation is characterized by comprising a conveying line assembly (1), a mechanical arm assembly (2), a control cabinet (3), a weight moment measurement assembly (4) and a supporting platform (6), wherein two conveying line assemblies (1) are arranged on one side of the mechanical arm assembly (2), a force sensor A (51) and a force sensor B (52) are arranged at the top end of the supporting platform (6), and the weight moment measurement assembly (4) is supported by the force sensor A (51) and the force sensor B (52); The weight moment measuring assembly (4) comprises a guide rail (41), a first supporting assembly (42), a first supporting block (43), a second supporting block (44) and a second supporting assembly (45), wherein the first supporting block (43) and the second supporting block (44) are respectively arranged at two ends of the guide rail (41), the second supporting assembly (45) is adjustably arranged on the second supporting block (44), and the first supporting assembly (42) is slidably arranged on the guide rail (41).
  2. 2. The full-automatic gas turbine blade moment detection workstation of claim 1, wherein a first spherical bolt bar (432) is mounted at the bottom end of the first support block (43), and two second spherical bolt bars (442) are mounted at the bottom end of the second support block (44).
  3. 3. A full automatic gas turbine blade weight moment detection workstation according to claim 3, wherein the second support assembly (45) comprises a tenon support plate (451) and a tenon support rod (452), the tenon support rod (452) matched with a blade tenon is arranged at the top end of the tenon support plate (451), the tenon support rod (452) is cylindrical in shape, the tenon support plate (451) is slidably arranged on the second support block, and the tenon support plate (451) and the second support block are locked through bolts.
  4. 4. The full-automatic gas turbine blade moment detection workstation of claim 1, wherein the first support assembly (42) comprises a blade body support plate (422) and a bottom plate (424), the blade body support plate (422) and the bottom plate (424) are fixed through bolts, a blade body support rod (421) is installed at the top end of the blade body support plate (422), the blade body support rod (421) is cylindrical, a push rod (423) is installed at one side of the bottom plate (424), and a plurality of sliding blocks (425) matched with the guide rails (41) are installed at the bottom end of the bottom plate (424).
  5. 5. The full-automatic gas turbine blade moment detection workstation of claim 4, wherein the guide rail (41) comprises a guide rail main body (411), two parallel guide bars (412) are arranged in the guide rail main body (411), the cross section of each guide bar (412) is semicircular, the sliding block (425) is cylindrical, and a guide groove matched with each guide bar (412) is formed in the outer side of each cylinder.
  6. 6. The full-automatic gas turbine blade moment detection workstation of claim 1, wherein the mechanical arm assembly (2) comprises a mechanical arm main body (21), a finger cylinder (22) and clamping jaws (23), the finger cylinder (22) is installed on the mechanical arm main body (21), the finger cylinder (22) drives the two clamping jaws (23) to open and close, and the mechanical arm main body (21) comprises a visual identification assembly.
  7. 7. The full-automatic gas turbine blade weight moment detection workstation according to claim 1, wherein the conveying line assembly (1) comprises a belt conveying line (11), a supporting frame (12) and a limiting column (13), the belt conveying line (11) is fixed on the supporting frame (12), and the supporting frame (12) is limited through the limiting column (13).
  8. 8. A full automatic gas turbine blade moment detection workstation as claimed in claim 4, wherein the force sensor A (51) displays a value of The force sensor B (52) displays the numerical value as The vertical distance between the center of the second spherical bolt rod (442) at the second supporting block (44) and the center of the first spherical bolt rod (432) at the first supporting block (43) is L, and the vertical distance between the center of gravity of the blade and the center of the second spherical bolt rod (442) at the second supporting block (44) is L1; the radius of the mortise supported by the tenon supporting rod (452) from the rotation center is R, and the center of the tenon supporting rod (452) is aligned with the center of the second spherical bolt rod (442) at the second supporting block (44); The first supporting component (42) moves to a proper position, the position is found according to the three-dimensional model, the connecting line from the center of gravity of the blade to the end face of the tenon root is kept parallel to the ground, at the moment, the first supporting component (42) is ensured to move to be capable of supporting the blade body, the position of the first supporting component (42) on the guide rail (41) is recorded, the sliding block (425) is locked at the position, and the position of the device is ensured not to change; Inputting the R value and the L value into a computer; At this time, the blades are placed on the weight moment measuring assembly (4) according to the specified direction and requirements, and the system automatically records And The blade weight moment is automatically calculated according to the following formula: the formula of the centrifugal force of the blade is: f is the centrifugal force of the blade, m is the weight of the blade, The angular velocity of the blade is represented by r, which is the radius from the center of gravity of the blade to the center of rotation; when the whole circle of blades work, the angular speed is consistent, so the factors influencing the centrifugal force are m and r, m R is called the weight moment, and since the center of gravity of the blade is not available, the equation is equivalently replaced to obtain: wherein r=r+l1; The above formula is therefore replaced by: Wherein m is = The simplified process is as follows: m is the current blade weight moment value, Is the value of the force sensor a (51), The force sensor B (52) has a value L which is the vertical distance between the center of the second spherical bolt rod (442) at the second support block (44) and the center of the first spherical bolt rod (432) at the first support block (43), and R is the radius of the tenon support rod (452) from the center of rotation.
  9. 9. The full-automatic gas turbine blade moment detection workstation of claim 8, wherein the automatic adjustment steps are as follows: the visual identification component of the mechanical arm component (2) can automatically identify the serial number of the blade, the serial number is input into the system as an SN (serial number) of the weight moment, and meanwhile, the shape and the size characteristics of the blade and the specific tongue-and-groove of the type of blade are searched in the system and placed on the blade body supporting rod (421); The mechanical arm assembly (2) can automatically adjust the opening and closing amplitude and the clamping gesture of the clamping jaw (23), the blade body supporting rod (421) and the tenon root supporting rod (452) are found through the visual identification assembly, and the tenon groove corresponding to the blade is accurately placed on the tenon root supporting rod (452).
  10. 10. The full-automatic gas turbine blade weight moment detection workstation of claim 9, wherein the optimal assembly order of the blades means that the total unbalance of the rotor reaches the minimum or meets the requirement of designing the maximum unbalance; according to the calculated weight moment of each blade, the total unbalance amount calculation formula of the blade is obtained as follows: n is the total number of blades, i is the ith blade, θ is the included angle between the blades, and Mi is the weight moment of the ith blade; Step 1, arranging according to Ui ascending order, preferentially screening blades with small unbalance moment, and reducing the total unbalance base of the group; Step 2, if the Ui deviation is less than or equal to 3%, the blades are regarded as equivalent stages; step 3, grouping simulation, namely symmetrically arranging blades with the same magnitude according to symmetrical grouping, namely 180 degrees apart; and step 4, calculating the total unbalance, and if the total unbalance is not smaller than the design maximum unbalance value, replacing the adjacent ordered blades until the design requirement is met.

Description

Full-automatic gas turbine blade weight moment detection workstation Technical Field The invention relates to the technical field of detection of the weight moment of a gas turbine blade, in particular to a full-automatic gas turbine blade weight moment detection workstation. Background The mechanical sensor is core measurement equipment capable of accurately capturing and quantifying force signals in different directions, and is widely applied to the fields of aerospace, unmanned aerial vehicle research and development, industrial automation, robotics, gas turbines and the like. In addition, in electric vehicles, particularly extended range electric vehicles, the extended range architecture enables the gas turbine to find the best application scene. The gas turbine blade is the core equipment of modern energy conversion at present, and the measurement of the weight moment of the movable blade is a key link for ensuring the running stability and reliability of the whole machine. The weight of the blades is different due to the problem of the manufacturing process, so that the centrifugal forces generated by the blades are different, the blade sequences are different during installation, and the total unbalance amount is different. The traditional measuring method requires an operator to manually place the blades on the measuring device and record data, and the sequence of the blade arrangement is calculated through corresponding software. The method has the advantages that the method has a certain danger when in use, the blades are generally heavier, personnel and measuring equipment are easy to injure, different operating steps of operators can cause inaccurate data measurement caused by shaking of the measuring device when the blades are placed, the efficiency is low, if the weighing is wrong, the unbalance is overlarge, and the process is delayed and economic loss is caused when the machine is disassembled after the machine is installed. Disclosure of Invention The invention aims to provide a full-automatic gas turbine blade weight moment detection workstation, which aims to solve the problems in the prior art. The technical scheme is that the full-automatic gas turbine blade weight moment detection workstation comprises a conveying line assembly, a mechanical arm assembly, a control cabinet, a weight moment measurement assembly and a supporting platform, wherein two conveying line assemblies are arranged on one side of the mechanical arm assembly, a force sensor A and a force sensor B are arranged at the top end of the supporting platform, and the weight moment measurement assembly is supported by the force sensor A and the force sensor B; The weight moment measuring assembly comprises a guide rail, a first supporting assembly, a first supporting block, a second supporting block and a second supporting assembly, wherein the first supporting block and the second supporting block are respectively arranged at two ends of the guide rail, the second supporting assembly is adjustably arranged on the second supporting block, and the first supporting assembly is slidably arranged on the guide rail. Preferably, the first spherical bolt rod is installed to first supporting shoe bottom, two second spherical bolt rods are installed to second supporting shoe bottom. Preferably, the second supporting component comprises a tenon supporting plate and a tenon supporting rod, the tenon supporting rod matched with the tenon of the blade is arranged at the top end of the tenon supporting plate, the tenon supporting rod is cylindrical, the tenon supporting plate is slidably arranged on the second supporting block, and the tenon supporting plate and the second supporting block are locked through bolts. Preferably, the guide rail comprises a guide rail main body, two guide bars which are arranged in parallel are arranged in the guide rail main body, the cross section of each guide bar is semicircular, the shape of each sliding block is cylindrical, and guide grooves matched with the guide bars are formed in the outer side of each cylindrical sliding block. Preferably, the mechanical arm assembly comprises a mechanical arm main body, a finger cylinder and clamping jaws, wherein the finger cylinder is arranged on the mechanical arm main body, the finger cylinder drives the two clamping jaws to open and close, and the mechanical arm main body comprises a visual identification assembly. Preferably, the conveyor line assembly comprises a belt conveyor line, a supporting frame and a limiting column, wherein the belt conveyor line is fixed on the supporting frame, and the supporting frame is limited through the limiting column. Preferably, force sensor A displays a numerical value ofThe force sensor B displays the numerical value asThe vertical distance between the center of the blade gravity center and the center of the second spherical bolt rod at the second supporting block is L1; the radius of the mortise supported by the tenon