CN110702059A - Measuring device for exhaust area of single guide vane - Google Patents
Measuring device for exhaust area of single guide vane Download PDFInfo
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- CN110702059A CN110702059A CN201910930969.1A CN201910930969A CN110702059A CN 110702059 A CN110702059 A CN 110702059A CN 201910930969 A CN201910930969 A CN 201910930969A CN 110702059 A CN110702059 A CN 110702059A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/28—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring areas
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/14—Testing gas-turbine engines or jet-propulsion engines
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- Combustion & Propulsion (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a device for measuring the exhaust area of a single guide vane, and belongs to the technical field of aeroengine detection. A single guide vane exhaust area measurement device comprising: the simulation device comprises a base, a fixing device and a simulation device, wherein the fixing device and the simulation device are arranged on the base; the fixing device comprises a first positioning component and a second positioning component which are arranged at two ends of the base; the simulation assembly comprises a first dorsal side blade simulation block and a second dorsal side blade simulation block which are arranged on one side of the base, and a first basin side blade simulation block, a second basin side blade simulation block, a large edge plate simulation block and a small edge plate simulation block which are arranged on the other side of the base. The invention can obtain the exhaust area value of a single blade to be measured through measurement, and selects the blades of which the total exhaust area value is in accordance with the requirement of a design drawing from the blades through screening and matching the blades, thereby effectively reducing the assembly and measurement times of the guide blades and finally realizing one-time assembly.
Description
Technical Field
The invention relates to the technical field of aero-engine detection, in particular to a device for measuring the exhaust area of a single guide vane.
Background
The exhaust area is an important parameter of the engine, and is obtained by measuring a measuring point specified by a design chart between adjacent guide blades by using a digital exhaust area measuring tool in the assembly process of the guide casing assembly. And measuring from the first group of guide vanes to the last group of guide vanes, calculating all measured data according to a formula to obtain a total exhaust area value, comparing the total exhaust area value with a theoretical area specified by a design file, and judging whether the total exhaust area value is in a tolerance range to determine whether the total exhaust area value is qualified. If not, replacing the blades according to the condition that the total area value is larger or smaller, measuring the area value between the replaced blades, replacing the old data at the same position with the new data, calculating whether the total area is qualified again, and if not, continuing to replace and measure until the total area is qualified. The current assembling and measuring mode has the disadvantages of more times, low efficiency and long assembling period.
Disclosure of Invention
The invention aims to provide a device for measuring the exhaust area of a single guide vane, which is used for solving the problems of low guide vane assembly efficiency and long assembly period in the existing guide vane casing.
The technical scheme for solving the technical problems is as follows:
a single guide vane exhaust area measurement device comprising: the simulation device comprises a base, a fixing device and a simulation device, wherein the fixing device and the simulation device are arranged on the base;
the fixing device comprises a first positioning component and a second positioning component which are arranged at two ends of the base;
the simulation assembly comprises a first back-side blade simulation block and a second back-side blade simulation block which are arranged on one side of the base, and a first basin-side blade simulation block, a second basin-side blade simulation block, a large edge plate simulation block and a small edge plate simulation block which are arranged on the other side of the base; the large flange plate simulation block is close to the first positioning assembly, and the small flange plate simulation block is close to the second positioning assembly.
The first positioning assembly and the second positioning assembly respectively fix the blade to be tested and simulate the position of the blade to be tested in the guide casing. The first back-side blade simulation block and the second back-side blade simulation block are used for simulating the positions of adjacent blades located on the back side of the blade to be tested in the casing. The first basin side blade simulation block, the second basin side blade simulation block, the large edge plate simulation block and the small edge plate simulation block are used for simulating the positions of adjacent blades on the basin side of the blade to be tested in the casing. The exhaust area of the back side and the basin side of the blade to be measured can be measured respectively through the digital exhaust area measuring tool, the exhaust area value of a single blade to be measured can be obtained, the exhaust areas of a plurality of blades are screened and matched, the blades of which the total exhaust area value is one set are selected to meet the requirements of a design drawing to be assembled, the assembling and measuring times of the guide blades can be effectively reduced, the measurement of the exhaust area during the assembling process without the need of assembling is realized at last, the production period is shortened, and the efficiency is improved.
Further, the first back-side blade simulation block and the second back-side blade simulation block are respectively provided with a first exhaust edge simulation surface on one side facing the middle part of the base.
When the digital exhaust area measuring tool is used for measuring the exhaust area of the exhaust channel at the back side of the blade to be measured, the width movable measuring head only needs to be in contact with the exhaust edge of the adjacent blade at the back side of the blade to be measured, and the first exhaust edge simulation surface is used for simulating the tangent plane of the contact point of the width movable measuring head and the exhaust edge of the adjacent blade. And two dorsal blade simulation blocks are provided for matching the two measurement points specified in the design drawings.
Further, the first basin-side blade simulation block and the second basin-side blade simulation block both comprise a back-side simulation surface, a third exhaust edge simulation surface and a reference surface; the back side simulation surface is formed on one side, close to the middle part of the base, of the first basin side blade simulation block or the second basin side blade simulation block; the third exhaust edge simulation surface is formed on the top surface of the first basin side blade simulation block or the second basin side blade simulation block; the datum plane is formed on one side, away from the middle part of the base, of the first basin side blade simulation block or the second basin side blade simulation block, and the datum plane is perpendicular to the third exhaust edge simulation plane.
When the digital exhaust area measuring tool is used for measuring the exhaust area of the exhaust channel on the basin side of the blade to be measured, the cross positioning surface of the positioning block needs to be in contact positioning with the exhaust edge of the adjacent blade on the basin side of the blade to be measured, and the third exhaust edge simulation surface and the reference surface are in contact with the cross positioning surface and used for simulating the position of the digital exhaust area measuring tool in working. Two fixed measuring heads of width of the digital exhaust area measuring tool need to be in contact with the back side surface of the adjacent blade on the basin side of the blade to be measured, and the back side simulation surface is used for simulating the back side surface of the adjacent blade on the basin side of the blade to be measured. Meanwhile, two basin side blade simulation blocks are arranged and used for matching two measuring points specified by a design drawing.
Furthermore, the large flange plate simulation block is provided with a large flange plate channel simulation surface towards one side of the middle part of the base, and the small flange plate simulation block is provided with a small flange plate channel simulation surface towards one side of the middle part of the base.
When the digital exhaust area measuring tool is used for measuring the exhaust area of the exhaust channel at the basin side of the blade to be measured, the length value of the exhaust channel at the back side of the adjacent blade needs to be measured, the large edge plate channel simulation surface and the small edge plate channel simulation surface simulate the large edge plate channel surface and the small edge plate channel surface of the adjacent blade respectively, and therefore the length value of the exhaust channel at the back side of the adjacent blade is obtained by measuring the distance between the large edge plate channel simulation surface and the small edge plate channel simulation surface.
Further, the first positioning assembly comprises a first positioning seat, a first limiting seat and a pressing seat; the first positioning seat is provided with a first supporting surface and an end limiting surface which are perpendicular to each other; the first limiting seat is provided with a large flange plate limiting surface; the compressing base is provided with a top limiting surface.
The first positioning component is used for fixing one end, provided with a large edge plate, of the blade to be measured, the end part limiting surface limits the end part of the blade to be measured, the large edge plate limiting surface is in contact with the large edge plate of the blade to be measured, the circumferential direction of the blade to be measured is limited, the first supporting surface and the top limiting surface respectively limit the bottom and the top of the blade to be measured, and finally the blade to be measured is fixed through the pressing seat, so that the fixing of one end, provided with the large edge plate, of the blade to be measured is achieved.
Furthermore, the second positioning assembly comprises a second positioning seat, a second limiting seat and a pressing seat; the second positioning seat is provided with a second supporting surface; the second limiting seat is provided with a small flange plate limiting surface.
The second positioning assembly is used for fixing one end, provided with the small edge plate, of the blade to be measured, the small edge plate limiting surface is in contact with the small edge plate of the blade to be measured, the circumferential direction of the blade to be measured is limited, the second supporting surface and the top limiting surface on the pressing seat limit the bottom and the top of the blade to be measured respectively, and finally the pressing seat is used for fixing, so that the fixing of one end, provided with the small edge plate, of the blade to be measured is achieved.
Further, the pressing seat comprises a guide rod and a pressing block; one end of the guide rod is connected with the base, the other end of the guide rod penetrates through the pressing block and is provided with a knurled nut, and the guide rod is sleeved with a spring, two ends of the spring are respectively in contact with the base and the pressing block; the top limiting surface is formed on the bottom wall of the pressing block.
The compression block can slide on the guide rod, and when the knurled nut rotates, the top limiting surface can be in close contact with the top of the blade to be tested, so that the blade to be tested is fixed. When the knurled nut is loosened, the spring can bounce the pressing block open, so that the pressing block is separated from the blade to be tested, and the blade to be tested is convenient to replace.
Furthermore, a ball pin is arranged on the base.
The ball pin is used as a reference piece, and the mutual position relation among the simulation blocks is detected, so that the positions of the simulation blocks are accurate.
A method for measuring the exhaust area of the single guide vane based on the measuring device comprises the following steps:
s1: fixing the blade to be measured through a fixing device;
s2: placing the cross positioning surface of the positioning block of the digital exhaust area measuring tool on the exhaust edge of the blade to be measured; the length fixed measuring head is attached to the back side large edge plate channel surface of the blade to be measured, the length movable measuring head is attached to the back side small edge plate channel surface of the blade to be measured, and the length size of the back side exhaust channel is measured; respectively attaching two width fixed measuring heads to the blade back of the blade to be measured, respectively contacting two corresponding width movable measuring heads with a first back-side blade simulation block and a second back-side blade simulation block, and measuring the width sizes of two positions of a back-side exhaust channel;
s3: the digital exhaust area measuring tool calculates the exhaust area value of the back side of the blade to be measured according to the length size of the back side exhaust channel and the width sizes of two positions of the back side exhaust channel;
s4: respectively placing the cross positioning surface of the positioning block of the digital exhaust area measuring tool on the tops of the first basin side blade simulation block and the second basin side blade simulation block; the length fixed measuring head is contacted with the large edge plate simulation block, the length movable measuring head is contacted with the small edge plate simulation block, and the length size of the exhaust channel on the basin side is measured; two width fixed measuring heads are respectively contacted with a first basin side blade simulation block and a second basin side blade simulation block, two corresponding width movable measuring heads are respectively contacted with the exhaust edge of the blade to be measured, and the width sizes of two positions of a basin side exhaust channel are measured;
s5: the digital exhaust area measuring tool calculates the exhaust area value of the basin side of the blade to be measured according to the length size of the basin side exhaust channel and the width sizes of two positions of the basin side exhaust channel;
s6: and adding the exhaust area value of the back side of the blade to be measured and the exhaust area value of the basin side of the blade to be measured and dividing by 2 to obtain a numerical value which is the exhaust area value of the single guide blade.
According to the invention, the positions of the blade to be measured and the adjacent blades on the two sides of the blade to be measured in the guide device casing are simulated, the exhaust area values of the exhaust channel on the back side and the basin side of the blade to be measured can be conveniently and rapidly measured through the digital exhaust area measuring tool, the exhaust area value of a single exhaust blade can be obtained by adding the two exhaust area values and dividing the two exhaust area values by 2, and the problem that the exhaust area value of the single guide blade cannot be measured is solved.
When the blade assembly is required, the exhaust area values of the blades are screened and matched, the blades of which the total exhaust area value is one part are selected from the blades to be assembled, the total exhaust area value meets the requirement of a design drawing, repeated blade replacement and repeated measurement caused by unqualified exhaust area values in the assembly are avoided, the assembly and measurement period is shortened, and the assembly efficiency is improved.
Further, in step S1, the fixing method is: the bottoms of two ends of a blade to be measured are respectively placed on a first supporting surface and a second supporting surface, one end, provided with a large edge plate, of the blade to be measured is in contact with the end limiting surface, the large edge plate and the small edge plate of the blade to be measured are in contact with the large edge plate limiting surface and the small edge plate limiting surface respectively, the tops of the two ends of the blade to be measured are in contact with the top limiting surfaces of the two pressing seats respectively, and knurled nuts are screwed to fix the blade to be measured;
in step S2, the contact pattern of two corresponding width movable measuring heads: two corresponding width movable measuring heads are respectively contacted with the first exhaust edge simulation surfaces of the first back-side blade simulation block and the second back-side blade simulation block;
in step S4, the mounting method of the digital exhaust area measuring device: the cross positioning surface of the positioning block of the digital exhaust area measuring tool is respectively contacted with the third exhaust edge simulation surface and the reference surface on the first basin side blade simulation block and the second basin side blade simulation block; the length fixed measuring head is contacted with a large flange plate channel simulation surface of the large flange plate simulation block, and the length movable measuring head is contacted with a small flange plate channel simulation surface of the small flange plate simulation block; the two width fixed measuring heads are respectively contacted with the back side simulation surfaces of the first basin side blade simulation block and the second basin side blade simulation block.
The invention has the following beneficial effects:
the invention can respectively measure the exhaust areas of the back side and the basin side of the blade to be measured through the digital exhaust area measuring tool, can obtain the exhaust area value of a single blade to be measured, and selects the blades of which the total exhaust area value meets the requirement of a design drawing from the exhaust areas of a plurality of blades through screening and matching, thereby effectively reducing the assembly and measurement times of the guide blades, finally realizing one-time assembly without measuring the exhaust area during assembly, shortening the production period and improving the efficiency.
Drawings
FIG. 1 is a schematic structural diagram of a single guide vane exhaust area measurement device of the present invention;
FIG. 2 is a schematic structural view of a first positioning seat according to the present invention;
FIG. 3 is a schematic structural view of a first position-limiting base according to the present invention;
FIG. 4 is a schematic structural view of a compression seat of the present invention;
FIG. 5 is a schematic structural diagram of a second positioning seat of the present invention;
FIG. 6 is a schematic structural view of a second spacing block according to the present invention;
FIG. 7 is a schematic view of a first back-side blade simulation block of the present invention;
FIG. 8 is a schematic structural diagram of a first basin-side blade simulation block of the present invention;
FIG. 9 is a schematic structural diagram of a large flange simulation block of the present invention;
FIG. 10 is a schematic view of a small flange simulation block according to the present invention;
FIG. 11 is a schematic structural diagram of the measuring device of the present invention when measuring the exhaust area of the blade to be measured.
In the figure: 10-a base; 11-ball stud; 21-a first positioning assembly; 22-a second positioning assembly; 23-a first positioning seat; 24-a first limit seat; 25-a compression seat; 26-a second positioning seat; 27-a second limit seat; 231-a first support surface; 232-end limiting surface; 241-a large flange plate limiting surface; 251-a top limiting surface; 252-a guide bar; 253-a compression block; 254-knurled nut; 255-a spring; 256-support rods; 261-a second support surface; 271-small flange plate limiting surface; 310-a first dorsal blade simulation block; 311-first exhaust edge simulation surface; 320-a second dorsal blade simulator block; 330-a first basin-side blade simulation block; 331-backside simulation surface; 332-third vented edge simulation plane; 333-base level; 340-a second basin-side blade simulation block; 350-large flange plate simulation block; 351-large flange plate channel simulation surface; 360-small flange plate simulation block; 361-small flange plate channel simulation surface; 400-leaf to be tested.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Examples
Referring to fig. 1, an apparatus for measuring an exhaust area of a single guide vane includes: the simulation device comprises a base 10, a fixing device and a simulation device, wherein the fixing device and the simulation device are respectively installed at the top of the base 10. The base 10 is further provided with a ball stud 11.
The fixing device comprises a first positioning component 21 and a second positioning component 22, wherein the first positioning component 21 and the second positioning component 22 are respectively used for fixing one end of the blade 400 to be tested, which is provided with a large flange plate, and one end of the blade 400 to be tested, which is provided with a small flange plate, so that the position of the blade 400 to be tested in the guide casing is simulated.
The simulation apparatus includes a first dorsal blade simulation block 310, a second dorsal blade simulation block 320, a first basin-side blade simulation block 330, a second basin-side blade simulation block 340, a large platform simulation block 350, and a small platform simulation block 360. The first back-side blade simulation block 310 and the second back-side blade simulation block 320 are located on one side of the base 10 and used for simulating the positions of the adjacent blades on the back side of the blade 400 to be tested in the guide casing, and the first basin-side blade simulation block 330, the second basin-side blade simulation block 340, the large edge plate simulation block 350 and the small edge plate simulation block 360 are located on the other side of the base 10 and used for simulating the positions of the adjacent blades on the basin side of the blade 400 to be tested in the guide casing. A large flange simulator block 350 and a small flange simulator block 360 are positioned adjacent to the first positioning assembly 21 and the second positioning assembly 22, respectively.
Referring to fig. 2 to 6, the first positioning assembly 21 includes a first positioning seat 23, a first limiting seat 24 and a pressing seat 25. The bottom of first locating seat 23 passes through bolt and locating pin fixed mounting on base 10, and the top of first locating seat 23 is equipped with the breach towards the base 10 middle part, and two mutually perpendicular's of breach side is first holding surface 231 and the spacing face 232 of tip respectively. The first supporting surface 231 is horizontally disposed for supporting the blade 400 to be tested. The end limiting surface 232 is vertically arranged and used for limiting the blade 400 to be measured in the axial direction.
The bottom of the first spacing seat 24 is fixedly mounted on the base 10 through bolts and positioning pins, one side, close to the first positioning seat 23, of the top of the first spacing seat 24 is provided with a large flange plate spacing surface 241, and the large flange plate spacing surface 241 is matched with a large flange plate on the back side of the blade 400 to be measured and used for radially spacing the blade 400 to be measured.
The compression seat 25 includes a guide rod 252 and a compression block 253. The bottom end of the guide rod 252 is connected with the base 10 through a screw thread, and the bottom end of the guide rod 252 is connected with a nut through a screw thread, and the nut is in contact with the base 10, so that the guide rod 252 and the base 10 are fixed. The top end of the guide 252 is also threadedly attached with a knurled nut 254. The middle part at guide arm 252 is established to compact heap 253 cover to compact heap 253 can slide with guide arm 252, and the diapire of compact heap 253 one end is equipped with the spacing face in top 251 for carry on spacingly to the top of the blade 400 that awaits measuring, and knurled nut 254 can also fix the blade 400 that awaits measuring, thereby realizes that first locating component 21 is equipped with the fixed of big flange board one end to the blade 400 that awaits measuring. In order to facilitate the installation and the removal of the blade 400 to be tested, the guide rod 252 is sleeved with a spring 255, and two ends of the spring 255 are respectively contacted with the pressing block 253 and the base 10.
In order to improve the stability of the pressing block 253, the pressing base 25 may further be provided with a support rod 256. The bottom end of the support rod 256 is connected with the base 10 through a thread, and the bottom end of the guide rod 252 is connected with a nut through a thread, the nut is in contact with the base 10, so that the support rod 256 is fixed with the base 10, and the height of the support rod 256 can be adjusted. The top of the support rod 256 contacts the bottom wall of the other end of the hold-down block 253. When the pressing block 253 fixes the blade 400 to be tested, the supporting rod 256 can effectively support the pressing block 253 by adjusting the height of the supporting rod 256, so that the pressing block 253 is prevented from being biased when the knurled nut 254 is screwed.
The second positioning assembly 22 includes a second positioning seat 26, a second limiting seat 27 and a pressing seat 25. The bottom of the second positioning seat 26 is fixedly mounted on the base 10 through a bolt and a positioning pin, and the top of the second positioning seat 26 is provided with a second supporting surface 261 for supporting the blade 400 to be tested. In this embodiment, in order to match the structure of the blade 400 to be measured with one end of the small edge plate, the second supporting surface 261 is arc-shaped and matches with the arc-shaped structure of the blade 400 to be measured with one end of the small edge plate, so as to better support the blade 400 to be measured.
The bottom of the second limiting seat 27 is fixedly mounted on the base 10 through bolts and positioning pins, one side, close to the second positioning seat 26, of the top of the second limiting seat 27 is provided with a small flange plate limiting surface 271, and the small flange plate limiting surface 271 is matched with a small flange plate on the back side of the blade 400 to be measured and used for radially limiting the blade 400 to be measured.
The pressing seat 25 in the second positioning component 22 is consistent with the pressing seat 25 in the first positioning component 21 in structure, the top limiting surface 251 used for limiting the top of the blade 400 to be measured is also arranged, and the second positioning component 22 is used for fixing one end, provided with a small edge plate, of the blade 400 to be measured through the knurled nut 254. In order to better match the arc structure of the end of the small edge plate of the blade 400 to be measured, the lower wall of the pressing block 253 is provided with a trapezoidal groove, and the top limiting surface 251 is formed on the side wall of the trapezoidal groove, so that the blade 400 to be measured can be well positioned through extrusion of the trapezoidal groove.
Referring to fig. 7 to 10, the first back-side blade simulation block 310 and the second back-side blade simulation block 320 have the same structure. The first back-side blade simulation block 310 and the second back-side blade simulation block 320 are both fixedly mounted on the base 10 by bolts and positioning pins, and the positions of the first back-side blade simulation block 310 and the second back-side blade simulation block 320 are matched with two measurement points specified in the design drawing. The first exhaust edge simulation surface 311 is respectively arranged on one side of the top of the first back-side blade simulation block 310 and the second back-side blade simulation block 320, which faces the middle of the base 10, and is used for simulating the exhaust edge of the adjacent blade on the back side of the blade 400 to be tested.
The first and second basin-side blade simulation blocks 330 and 340 are identical in structure. The bottoms of the first basin side blade simulation block 330 and the second basin side blade simulation block 340 are both fixedly mounted on the base 10 through screws and positioning pins, and the positions of the first basin side blade simulation block 330 and the second basin side blade simulation block 340 are matched with two measuring points specified in a design drawing. One side of the first basin-side blade simulation block 330 and one side of the second basin-side blade simulation block 340 facing the middle of the base 10 are respectively provided with a back-side simulation surface 331 for simulating the back side surface of the adjacent blade on the basin side of the blade 400 to be tested. The third exhaust edge simulation surface 332 and the reference surface 333 are arranged at the tops of the first basin side blade simulation block 330 and the second basin side blade simulation block 340 and are used for being in contact with the cross positioning surface of the positioning block of the digital exhaust area measuring tool to limit the digital exhaust area measuring tool. The third exhaust edge simulation surface 332 is horizontally arranged and formed on the top wall of the first basin side blade simulation block 330 or the second basin side blade simulation block 340. The reference surface 333 is vertically arranged and formed on one side of the first basin-side blade simulation block 330 or the second basin-side blade simulation block 340 far away from the middle of the base 10.
The bottoms of the large flange simulating block 350 and the small flange simulating block 360 are fixedly mounted on the base 10 by screws and positioning pins, respectively, and are close to the first positioning seat 23. Big listrium simulation block 350 and the top of little listrium simulation block 360 are equipped with big listrium passageway simulation face 351 and little listrium passageway simulation face 361 respectively, and big listrium passageway simulation face 351 and little listrium passageway simulation face 361 set up relatively, simulate the big listrium passageway face and the little listrium passageway face of the adjacent blade of the blade 400 basin side that awaits measuring respectively.
Referring to fig. 11, a method for measuring the exhaust area of a single guide vane based on the above measuring device includes the following steps:
s1: the mutual position relation among the simulation blocks is detected through the ball pin 11, so that the positions of the simulation blocks are accurate;
s2: carrying out zero alignment on each measuring head by a digital exhaust area measuring tool on an exhaust area standard component;
s3: placing the bottoms of the two ends of the blade 400 to be tested on the first supporting surface 231 and the second supporting surface 261 respectively, enabling one end, provided with a large edge plate, of the blade 400 to be tested to be in contact with the end limiting surface 232, enabling the large edge plate and the small edge plate of the blade 400 to be tested to be in contact with the large edge plate limiting surface 241 and the small edge plate limiting surface 271 respectively, enabling the tops of the two ends of the blade 400 to be tested to be in contact with the top limiting surfaces 251 of the two pressing seats 25 respectively, and screwing the knurled nut 254 to fix the blade 400 to be tested;
s4: placing the cross positioning surface of the positioning block of the digital exhaust area measuring tool on the exhaust edge of the blade 400 to be measured; attaching the length fixed measuring head to the back side large edge plate channel surface of the blade 400 to be measured, attaching the length movable measuring head to the back side small edge plate channel surface of the blade 400 to be measured, and measuring the length size of the back side exhaust channel; respectively attaching two fixed width measuring heads to the blade back of the blade 400 to be measured, respectively contacting two corresponding movable width measuring heads with the first exhaust edge simulation surfaces 311 of the first back-side blade simulation block 310 and the second back-side blade simulation block 320, and measuring the width sizes of two positions of a back-side exhaust channel;
s5: the digital exhaust area measuring tool calculates the exhaust area value of the back side of the blade 400 to be measured according to the length dimension of the back side exhaust channel and the width dimensions of two positions of the back side exhaust channel;
s6: respectively placing the cross positioning surfaces of the positioning blocks of the digital exhaust area measuring tool on the tops of the first basin side blade simulation block 330 and the second basin side blade simulation block 340, and respectively contacting with the third exhaust edge simulation surface 332 and the reference surface 333; the length fixed measuring head is contacted with a large flange plate channel simulation surface 351 of a large flange plate simulation block 350, and the length movable measuring head is contacted with a small flange plate channel simulation surface 361 of a small flange plate simulation block 360, so that the length size of the exhaust channel at the basin side is measured; respectively contacting two fixed width measuring heads with the back simulation surfaces 331 of the first basin-side blade simulation block 330 and the second basin-side blade simulation block 340, respectively contacting two corresponding movable width measuring heads with the exhaust edges of the blade 400 to be measured, and measuring the width sizes of two positions of a basin-side exhaust channel;
s7: the digital exhaust area measuring tool calculates the exhaust area value of the basin side of the blade 400 to be measured through the length size of the basin side exhaust channel and the width sizes of two positions of the basin side exhaust channel;
s8: and adding the exhaust area value of the back side of the blade 400 to be measured and the exhaust area value of the basin side of the blade 400 to be measured and dividing by 2 to obtain a numerical value, namely the exhaust area value of the single guide blade.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A single guide vane discharge area measurement device comprising: the simulation device comprises a base (10), and a fixing device and a simulation device which are arranged on the base (10);
the fixing device comprises a first positioning component (21) and a second positioning component (22) which are arranged at two ends of the base (10);
the simulation assembly (30) comprises a first back-side blade simulation block (310) and a second back-side blade simulation block (320) which are arranged on one side of the base (10), and a first basin-side blade simulation block (330), a second basin-side blade simulation block (340), a large flange plate simulation block (350) and a small flange plate simulation block (360) which are arranged on the other side of the base (10); the large flange simulating block (350) is adjacent to the first positioning assembly (21), and the small flange simulating block (360) is adjacent to the second positioning assembly (22).
2. The single guide vane exhaust area measurement device according to claim 1, wherein the first back-side vane simulation block (310) and the second back-side vane simulation block (320) are provided with a first exhaust edge simulation surface (311) on the sides facing the middle of the base (10), respectively.
3. The single guide vane discharge area measurement device of claim 2, wherein the first and second basin-side vane simulation blocks (330, 340) each comprise a back-side simulation surface (331), a third discharge edge simulation surface (332), and a reference surface (333); the back-side simulation surface (331) is formed on one side of the first basin-side blade simulation block (330) or the second basin-side blade simulation block (340) close to the middle of the base (10); the third exhaust edge simulation surface (332) is formed on the top surface of the first basin side blade simulation block (330) or the second basin side blade simulation block (340); the reference surface (333) is formed on one side, far away from the middle part of the base (10), of the first basin-side blade simulation block (330) or the second basin-side blade simulation block (340), and the reference surface (333) is perpendicular to the third exhaust edge simulation surface (332).
4. The single guide vane exhaust area measurement device according to claim 3, wherein the side of the large platform simulation block (350) facing the middle of the base (10) is provided with a large platform passage simulation surface (351), and the side of the small platform simulation block (360) facing the middle of the base (10) is provided with a small platform passage simulation surface (361).
5. The single guide vane exhaust area measurement device of claim 1, wherein the first positioning assembly (21) comprises a first positioning seat (23), a first limiting seat (24) and a pressing seat (25); the first positioning seat (23) is provided with a first supporting surface (231) and an end limiting surface (232) which are perpendicular to each other; the first limiting seat (24) is provided with a large edge plate limiting surface (241); the pressing seat (25) is provided with a top limiting surface (251).
6. The single guide vane air discharge area measurement device of claim 5, wherein the second positioning assembly (22) comprises a second positioning seat (26), a second limiting seat (27) and the pressing seat (25); the second positioning seat (26) is provided with a second supporting surface (261); the second limiting seat (27) is provided with a small edge plate limiting surface (271).
7. The single guide vane air discharge area measurement device of claim 6, wherein the hold down (25) comprises a guide rod (252) and a hold down block (253); one end of the guide rod (252) is connected with the base (10), the other end of the guide rod (252) penetrates through the pressing block (253) and is provided with a knurled nut (254), and a spring (255) with two ends respectively in contact with the base (10) and the pressing block (253) is sleeved on the guide rod (252); the top limiting surface (251) is formed on the bottom wall of the pressing block (253).
8. The single guide vane exhaust area measurement device of any one of claims 1 to 7, wherein the base (10) is further provided with a ball stud (11).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910930969.1A CN110702059A (en) | 2019-09-27 | 2019-09-27 | Measuring device for exhaust area of single guide vane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910930969.1A CN110702059A (en) | 2019-09-27 | 2019-09-27 | Measuring device for exhaust area of single guide vane |
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| CN110702059A true CN110702059A (en) | 2020-01-17 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111521145A (en) * | 2020-04-30 | 2020-08-11 | 中国航发成都发动机有限公司 | Turbine guide blade exhaust area measuring device and measuring method |
| CN111577639A (en) * | 2020-04-30 | 2020-08-25 | 中国航发航空科技股份有限公司 | Offset correcting device for engine rectifying blade |
| CN114216426A (en) * | 2021-12-08 | 2022-03-22 | 中国航发南方工业有限公司 | Device and method for virtually calculating and assembling throat area of guider of aero-engine |
-
2019
- 2019-09-27 CN CN201910930969.1A patent/CN110702059A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111521145A (en) * | 2020-04-30 | 2020-08-11 | 中国航发成都发动机有限公司 | Turbine guide blade exhaust area measuring device and measuring method |
| CN111577639A (en) * | 2020-04-30 | 2020-08-25 | 中国航发航空科技股份有限公司 | Offset correcting device for engine rectifying blade |
| CN114216426A (en) * | 2021-12-08 | 2022-03-22 | 中国航发南方工业有限公司 | Device and method for virtually calculating and assembling throat area of guider of aero-engine |
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