CN116183106A - Universal blade weight moment measuring clamp - Google Patents
Universal blade weight moment measuring clamp Download PDFInfo
- Publication number
- CN116183106A CN116183106A CN202310223866.8A CN202310223866A CN116183106A CN 116183106 A CN116183106 A CN 116183106A CN 202310223866 A CN202310223866 A CN 202310223866A CN 116183106 A CN116183106 A CN 116183106A
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- positioning block
- mounting plate
- screw
- blade
- sleeve
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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
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/02—Details of balancing machines or devices
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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
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/12—Static balancing; Determining position of centre of gravity
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The application belongs to the technical field of aeroengine measurement, and particularly relates to a universal blade weight moment measuring clamp. Comprising the following steps: the telescopic boom assembly comprises a base, a sleeve, an end cover, a telescopic rod and a mounting plate, and the clamping mechanism assembly comprises a mounting seat, a radial positioning block, an axial positioning ruler and a jacking screw. When the blade weight moment measuring work of different stages is carried out, the telescopic length of the telescopic rod is adjusted according to the actual working radius of the blade, the position of the axial positioning ruler is adjusted according to the axial width of the blade tenon, and the size of the opening between the upper positioning block and the lower positioning block is adjusted according to the size of the clamping part of the blade tenon. According to the method and the device, the clamping state of the blade can be guaranteed, the actual working state of the blade can be well simulated, the measuring result is accurate, the tool is multipurpose, the processing cost of the tool is effectively saved, and the storage space of the tool is saved.
Description
Technical Field
The application belongs to the technical field of aeroengine measurement, and particularly relates to a universal blade weight moment measuring clamp.
Background
When a rotor of a low-pressure compressor of a certain type of gas turbine is balanced, the weight moment of a rotor blade is required to be measured, the rotor of the low-pressure compressor is provided with six stages of working blades, the actual working radiuses and tenon sizes of the different stages of blades are different, therefore, a universal fixture capable of being used for measuring the weight moment of one-to-six stages of blades is required to be designed, the fixture has the capability of clamping the tenons of one-to-six stages of working blades, the arm length of the fixture is adjustable, and the weight moment measuring radius can be guaranteed to be consistent with the actual working radius of the blades.
Aiming at the existing blade weight moment measuring clamp, the main defects and shortcomings are as follows:
(1) The clamping part structure of the existing blade weight moment measuring clamp is fixed and cannot shrink and expand, so that the existing blade weight moment measuring clamp can only clamp one type of blade tenon;
(2) The arm length of the existing blade weight moment measuring clamp is fixed, so that the existing blade weight moment measuring clamp can only simulate the working radius of a blade with a certain length;
(3) When the weight moment of the multi-stage or multi-type rotor blade is measured, a plurality of clamps of the existing type are required to be designed, so that the production cost of the tool and the storage space of the tool are greatly increased;
(4) When the existing clamp is used for measuring the weight moment of different types of rotor blades, the clamping tool needs to be replaced, so that unnecessary complicated operation steps are brought to actual work, and the field work efficiency is affected to a certain extent.
It is therefore desirable to have a solution that overcomes or at least alleviates at least one of the above-mentioned drawbacks of the prior art.
Disclosure of Invention
It is an object of the present application to provide a universal blade moment of weight measuring jig to solve at least one problem existing in the prior art.
The technical scheme of the application is as follows:
a universal blade moment measuring jig, comprising:
the telescopic arm assembly comprises a base, a sleeve, an end cover, a telescopic rod and a mounting plate, wherein,
the base is connected with the weight moment balance;
one end of the sleeve is connected with the base, an accommodating cavity is formed in the sleeve, and a first opening communicated with the accommodating cavity is formed in the other end of the sleeve;
one end of the telescopic rod is arranged in the accommodating cavity through the first opening and is connected with the sleeve in a matched mode through an end cover;
the mounting plate is arranged at the other end of the telescopic rod;
the clamping mechanism assembly comprises a mounting seat, a radial positioning block, an axial positioning ruler and a jacking screw rod, wherein,
the mounting seat is U-shaped and comprises an upper mounting plate, a lower mounting plate and a back plate, a guide post is arranged between the upper mounting plate and the lower mounting plate, and the back plate is fixedly connected with the mounting plate;
the radial positioning block comprises an upper positioning block and a lower positioning block, the upper positioning block is sleeved on the guide post and is connected with the upper mounting plate through an upper positioning block screw rod and an M5 slotted pan head positioning screw, and the lower positioning block is sleeved on the guide post and is connected with the lower mounting plate through a lower positioning block screw rod and an M5 slotted pan head positioning screw;
a side plate is arranged at one end of the lower positioning block, and a splicing groove is formed between the side plate and the lower positioning block;
the axial positioning ruler is L-shaped, is installed in the inserting groove and is positioned through a first M3 inner hexagon screw installed on the lower positioning block;
the jack screw is mounted on the back plate.
In at least one embodiment of the present application, the sleeve with the one end that the base is connected is provided with flange installation limit, flange installation limit pass through M5 hexagon socket head cap screw with the base is connected.
In at least one embodiment of the present application, the spout has been seted up on the telescopic link, the second opening has been seted up on the end cover, second opening part is provided with the boss, the end cover through second M3 hexagon socket head cap screw with telescopic link, the boss with spout looks adaptation.
In at least one embodiment of the present application, the telescoping rod has a plurality of length gauges.
In at least one embodiment of the present application, an M4 socket head cap screw is mounted on the side wall of the sleeve, and after the telescopic rod is well adjusted, the telescopic rod is locked with the sleeve by the M4 socket head cap screw.
In at least one embodiment of the present application, the guide posts are disposed two in parallel.
In at least one embodiment of the present application, the mounting plate is L-shaped, and includes a first mounting plate and a second mounting plate, where the first mounting plate is fixedly connected with the telescopic rod;
the backboard is vertically provided with a connecting plate, and the connecting plate is fixedly connected with the second mounting plate.
In at least one embodiment of the present application, the upper positioning block includes an upper fixing portion and an upper clamping portion, the lower positioning block includes a lower fixing portion and a lower clamping portion, and the upper clamping portion and the end portion of the lower clamping portion are both provided with inclined planes that facilitate installation of blade tenons.
In at least one embodiment of the present application, the upper positioning block screw and the lower positioning block screw are both provided with a small knob.
In at least one embodiment of the present application, the jack screw is provided with a large knob thereon.
The invention has at least the following beneficial technical effects:
the utility model provides a general blade weight moment measuring fixture can realize the centre gripping work to the first six grades of blades of low pressure compressor rotor, can guarantee that the clamping state of blade can simulate out the actual operating condition of blade well, makes measuring result comparatively accurate to realized a frock multipurpose, effectively practiced thrift the processing cost of frock, saved the storage space of frock, because weigh different blades and need not change centre gripping frock, indirectly promoted on-the-spot work efficiency.
Drawings
FIG. 1 is an overall schematic view of a universal blade moment measuring jig according to one embodiment of the present application;
FIG. 2 is a schematic view of a telescoping arm assembly according to one embodiment of the present application;
FIG. 3 is an angular schematic view of a clamping mechanism assembly according to one embodiment of the present application;
FIG. 4 is another angular schematic view of a clamping mechanism assembly according to one embodiment of the present application;
FIG. 5 is a schematic view of an angle of a universal blade moment measuring jig with blade assembly according to one embodiment of the present application;
FIG. 6 is another angular schematic view of a universal blade moment measuring jig and blade assembly according to one embodiment of the present application.
Wherein:
1-a telescopic arm assembly; 2-a clamping mechanism assembly; 3-a base; 4-M5 socket head cap screws; 5-sleeve; 6-M4 socket head cap screws; 7-end caps; 8-mounting plates; 9-a telescopic rod; 10-a second M3 socket head cap screw; 11-side plates; 12-guide posts; 13-a small knob; 14-positioning a block screw; 15-upper positioning blocks; 16-big knob; 17-an axial positioning ruler; 18-a mounting base; 19-lower positioning blocks; a 20-M6 nut; 21-a first M3 socket head cap screw; 22-jack screws; 23-M5 slotted pan head set screw.
Detailed Description
In order to make the purposes, technical solutions and advantages of the implementation of the present application more clear, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of the present application. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application. Embodiments of the present application are described in detail below with reference to the accompanying drawings.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of the present application.
The present application is described in further detail below with reference to fig. 1-6.
The application provides a general blade weight moment measurement anchor clamps, include: telescoping arm assembly 1 and clamping mechanism assembly 2.
Specifically, as shown in fig. 2, the telescopic arm assembly 1 comprises a base 3, a sleeve 5, an end cover 7, a telescopic rod 9 and a mounting plate 8, wherein the base 3 is connected with a weight moment balance through a plurality of circumferentially uniform screws; one end of the sleeve 5 is fixedly connected with the base 3, an accommodating cavity is formed in the sleeve 5, and a first opening communicated with the accommodating cavity is formed in the other end of the sleeve 5; one end of the telescopic rod 9 is arranged in the accommodating cavity through the first opening and is connected with the sleeve 5 in a matched mode through the end cover 7, and the assembling position of the telescopic rod 9 in the sleeve 5 is adjustable; the mounting plate 8 is fixedly arranged at the other end of the telescopic rod 9 and is used for being connected with the clamping mechanism assembly 2.
In the preferred embodiment of the present application, the end that sleeve 5 is connected with base 3 is provided with the flange installation limit, and the flange installation limit is connected with base 3 through 4M 5 hexagon socket head cap screws 4 of circumference equipartition. The spout has been seted up on the telescopic link 9, and this spout is located the inside one end of sleeve 5 and seals, and the notch is seted up to the one end that is close to mounting panel 8, has seted up the second opening on the end cover 7, and second opening part is provided with the boss, and end cover 7 is connected with sleeve 5 through 4 second M3 hexagon socket head cap screws 10 of circumference equipartition, boss and spout sliding fit to can prevent that telescopic link 9 from deviating from the holding chamber of sleeve 5. The telescopic rod 9 may have various length specifications in order to meet the measurement requirements of the blade weight moment of other working radii of different lengths. Advantageously, in this embodiment, the side wall of the sleeve 5 is provided with the M4 socket head cap screw 6, and after the position of the telescopic rod 9 is adjusted, the telescopic rod 9 and the sleeve 5 are locked by the M4 socket head cap screw 6.
As shown in fig. 3-4, the clamping mechanism assembly 2 comprises a mounting seat 18, a radial positioning block, an axial positioning ruler 17 and a jacking screw 22, wherein the mounting seat 18 is in a U shape and comprises an upper mounting plate, a lower mounting plate and a back plate for connecting the upper mounting plate and the lower mounting edge, a guide post 12 is arranged between the upper mounting plate and the lower mounting plate, and the back plate is fixedly connected with the mounting plate 8; the positioning block screw 14 comprises an upper positioning block screw and a lower positioning block screw, the radial positioning block comprises an upper positioning block 15 and a lower positioning block 19, the upper positioning block 15 is provided with a through hole, the through hole is sleeved on the guide post 12 and is connected with the upper mounting plate through the upper positioning block screw and the M5 slotted pan head positioning screw 23, the lower positioning block 19 is provided with a through hole, the through hole is sleeved on the guide post 12 and is connected with the lower mounting plate through the lower positioning block screw and the M5 slotted pan head positioning screw 23; a side plate 11 is arranged at one end of the lower positioning block 19, and a splicing groove is formed between the side plate 11 and the lower positioning block 19; the axial positioning ruler 17 is L-shaped, and the axial positioning ruler 17 is arranged in the inserting groove and positioned by a first M3 inner hexagon screw 21 arranged on the lower positioning block 19; the jack screw 22 is mounted on the back plate.
In the preferred embodiment of the present application, corresponding mounting holes are formed in the upper mounting plate and the lower mounting plate, and the guide post 12 passes through the mounting holes and then is fixed by being matched with the M6 nut 20. In this embodiment, two guide posts 12 are preferably arranged in parallel.
In the preferred embodiment of the application, the mounting plate 8 is L-shaped and comprises a first mounting plate and a second mounting plate, and the first mounting plate is fixedly connected with the telescopic rod 9; the backboard is vertically provided with a connecting plate which is fixedly connected with the second mounting plate.
In the preferred embodiment of the present application, the upper positioning block 15 includes an upper fixing portion and an upper clamping portion, the lower positioning block 19 includes a lower fixing portion and a lower clamping portion, the upper fixing portion and the lower fixing portion are respectively used for installing the upper positioning block 15 and the lower positioning block 19, and inclined surfaces which are convenient for installing the blade tenons are respectively arranged at the end portions of the upper clamping portion and the lower clamping portion.
It can be understood that in this embodiment, the upper positioning block screw and the lower positioning block screw are both provided with a small knob 13 which is convenient to operate, and the jack screw 22 is provided with a large knob 16 which is convenient to operate.
The universal blade weight moment measuring clamp can be used for measuring the weight moment of one-to-six-stage working blades of a low-pressure compressor rotor of a certain type of gas turbine, and the use principle of the universal blade weight moment measuring clamp is shown in figures 5-6. The clamp is used in the following manner: firstly, the fixture is mounted on a weight scale, namely, the base 3 is connected with the weight scale through screws; then, according to the actual working radius of the blade to be measured, the telescopic length of the telescopic rod 9 is adjusted to ensure that the measured radius of the blade is the same as the actual working radius of the blade, and the telescopic rod 9 and the sleeve 5 are locked by tightening the M4 inner hexagon screw 6, so that inaccurate measurement results caused by movement in the measurement process are prevented; then, according to the axial width of the blade tenon, the position of the axial positioning ruler 17 is adjusted to ensure that the radial center line of the blade coincides with the radial center line of the clamp measuring arm, and the axial positioning ruler 17 and the lower positioning block 19 are locked by screwing the first M3 inner hexagon screw 21, so that inaccurate measuring results caused by movement in the measuring process are prevented; further, according to the size of the clamping part of the blade tenon, the positions of the upper positioning block 15 and the lower positioning block 19 are adjusted up and down by rotating the small knob 13, so that the opening size of the clamping mechanism assembly 2 is controlled, the distance between the upper positioning block 15 and the lower positioning block 19 and the radial center line of the clamp measuring arm is ensured to be the same, and the radial center line of the blade is ensured to be coincident with the radial center line of the clamp measuring arm; then, the blade tenon is put in from one end of the opening of the clamping mechanism assembly 2, the side surface of the blade tenon is abutted against the axial positioning ruler 17, and the jacking screw 22 is jacked against the bottom surface of the blade tenon by rotating the large knob 16, so that the clamping operation work of measuring the blade weight moment is completed; and finally, finishing data recording according to the indication displayed by the weight moment balance.
When the blade weight moment measuring work of different stages is carried out, the telescopic length of the telescopic rod 9 is adjusted according to the actual working radius of the blade, the position of the axial positioning ruler 17 is adjusted according to the axial width of the blade tenon, and the size of the opening between the upper positioning block 15 and the lower positioning block 19 is adjusted according to the size of the clamping part of the blade tenon; if the blade weight moment of other working radiuses with different lengths is required to be measured, the telescopic rod sleeve parts with different lengths are replaced according to the working radiuses of the blades.
According to the universal blade weight moment measuring clamp, according to different sizes of tenons of blades at different stages, the clamping part is designed to be movable and can be contracted and expanded, so that the tenons of the blades at different sizes can be clamped; through the design of the blade tenon propping structure, the bottom surface of the blade tenon is vertical to the direction of the clamp measuring arm, and through the design of the axial limiting structure of the blade tenon, the radial center line of the blade is coincident with the radial center line of the clamp measuring arm, so that the actual working state of the blade can be simulated during measurement, and the accurate blade weight moment parameter is measured; because the actual working radiuses of the blades at different stages are different, the telescopic structure is designed, so that the length of the measuring arm can be changed, and the working radiuses of the blades with different lengths can be simulated; besides measuring the weight moment of the first-stage working blade to the sixth-stage working blade of the low-pressure compressor, the clamp also has the capability of measuring the weight moment of the blades with different length working radiuses, and the telescopic structure of the clamp can comprise a plurality of sets of replaceable structures, so that the working radius of the blade with a wider range can be simulated.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present application should be covered in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A universal blade moment measuring jig, comprising:
the telescopic arm assembly (1), the telescopic arm assembly (1) comprises a base (3), a sleeve (5), an end cover (7), a telescopic rod (9) and a mounting plate (8), wherein,
the base (3) is connected with a weight moment balance;
one end of the sleeve (5) is connected with the base (3), a containing cavity is formed in the sleeve (5), and a first opening communicated with the containing cavity is formed in the other end of the sleeve (5);
one end of the telescopic rod (9) is arranged in the accommodating cavity through the first opening and is connected with the sleeve (5) by matching with an end cover (7);
the mounting plate (8) is mounted at the other end of the telescopic rod (9);
the clamping mechanism assembly (2), the clamping mechanism assembly (2) comprises a mounting seat (18), a radial positioning block, an axial positioning ruler (17) and a jacking screw (22), wherein,
the mounting seat (18) is U-shaped and comprises an upper mounting plate, a lower mounting plate and a back plate, a guide pillar (12) is arranged between the upper mounting plate and the lower mounting plate, and the back plate is fixedly connected with the mounting plate (8);
the radial positioning block comprises an upper positioning block (15) and a lower positioning block (19), the upper positioning block (15) is sleeved on the guide post (12) and is connected with the upper mounting plate through an upper positioning block screw rod and an M5 slotted pan head positioning screw (23), and the lower positioning block (19) is sleeved on the guide post (12) and is connected with the lower mounting plate through a lower positioning block screw rod and an M5 slotted pan head positioning screw (23);
a side plate (11) is arranged at one end of the lower positioning block (19), and a splicing groove is formed between the side plate (11) and the lower positioning block (19);
the axial positioning ruler (17) is L-shaped, and the axial positioning ruler (17) is arranged in the inserting groove and positioned by a first M3 inner hexagon screw (21) arranged on the lower positioning block (19);
the jack screw (22) is mounted on the back plate.
2. The universal blade moment measuring clamp according to claim 1, wherein one end of the sleeve (5) connected with the base (3) is provided with a flange mounting edge, and the flange mounting edge is connected with the base (3) through an M5 socket head cap screw (4).
3. The universal blade moment measuring clamp according to claim 2, wherein a sliding groove is formed in the telescopic rod (9), a second opening is formed in the end cover (7), a boss is arranged at the second opening, the end cover (7) is connected with the sleeve (5) through a second M3 socket head cap screw (10), and the boss is matched with the sliding groove.
4. A universal blade moment measuring clamp according to claim 3, wherein the telescopic rod (9) has a plurality of length specifications.
5. The universal blade moment measuring clamp according to claim 4, wherein an M4 socket head cap screw (6) is mounted on the side wall of the sleeve (5), and after the position of the telescopic rod (9) is adjusted, the telescopic rod (9) and the sleeve (5) are locked by the M4 socket head cap screw (6).
6. Universal blade moment measuring clamp according to claim 1, wherein the guide posts (12) are arranged two in parallel.
7. The universal blade moment measuring clamp according to claim 1, wherein the mounting plate (8) is L-shaped and comprises a first mounting plate and a second mounting plate, the first mounting plate being fixedly connected with the telescopic rod (9);
the backboard is vertically provided with a connecting plate, and the connecting plate is fixedly connected with the second mounting plate.
8. The universal blade moment measuring clamp according to claim 1, wherein the upper positioning block (15) comprises an upper fixing portion and an upper clamping portion, the lower positioning block (19) comprises a lower fixing portion and a lower clamping portion, and inclined surfaces which are convenient for installation of blade tenons are arranged at the end portions of the upper clamping portion and the lower clamping portion.
9. The universal blade moment measuring clamp according to claim 1, wherein the upper positioning block screw and the lower positioning block screw are provided with small knobs (13).
10. The universal blade moment measuring clamp according to claim 1, wherein the ejector screw (22) is provided with a large knob (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310223866.8A CN116183106A (en) | 2023-03-09 | 2023-03-09 | Universal blade weight moment measuring clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310223866.8A CN116183106A (en) | 2023-03-09 | 2023-03-09 | Universal blade weight moment measuring clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116183106A true CN116183106A (en) | 2023-05-30 |
Family
ID=86438388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310223866.8A Pending CN116183106A (en) | 2023-03-09 | 2023-03-09 | Universal blade weight moment measuring clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116183106A (en) |
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2023
- 2023-03-09 CN CN202310223866.8A patent/CN116183106A/en active Pending
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