CN108895948B - Universal frame measuring tool for movable blades and wind blades of axial flow fan - Google Patents
Universal frame measuring tool for movable blades and wind blades of axial flow fan Download PDFInfo
- Publication number
- CN108895948B CN108895948B CN201811067011.6A CN201811067011A CN108895948B CN 108895948 B CN108895948 B CN 108895948B CN 201811067011 A CN201811067011 A CN 201811067011A CN 108895948 B CN108895948 B CN 108895948B
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- China
- Prior art keywords
- thimble
- ejector pin
- fan blade
- plate
- template
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- 238000010030 laminating Methods 0.000 claims description 24
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000007689 inspection Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000003801 milling Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000005242 forging Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
- G01B5/205—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures of turbine blades or propellers
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- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a universal frame measuring tool for movable vanes and wind vanes of an axial flow fan, which is characterized in that: comprises a supporting bottom plate, a side frame, a guide bar, an upper thimble mechanism, a lower thimble mechanism and a point type molded surface template; according to the invention, two floating lower ejector pins or a single lower ejector pin are adopted, so that the universal use of the side quantity of the three ejector pins of the moving blade of the fan and the two ejector pins of the cylindrical handle fan blade can be realized; the blades are lifted or lowered to an ideal position through the matching of the lower adjusting hand wheel and the connecting rod, and the lower thimble group can be completely attached to the thimble holes on the blades, so that the blades can be accurately installed every time, and the adjustment is convenient; the adopted point contact blank inspection template has small contact area, is easy to inspect more or less allowance, ensures that the blank cannot be completely milled during milling processing, and achieves better inspection effect.
Description
Technical Field
The invention relates to the field of fan blade machining, in particular to a universal frame measuring tool for a movable blade and a fan blade of an axial flow fan.
Background
The three thimble side quantity of a general fan moving blade and the two thimbles of a cylindrical handle fan blade are respectively subjected to side quantity by adopting measuring tools of two side quantities, and the profile size of each gear height is adjusted by inserting a side quantity sample plate into an inner side guide bar, and the profile side quantity is carried out by inserting an inner arc side quantity sample plate and a back arc side quantity sample plate;
the die forging blank allowance of the fan blade is smaller, the allowance of each part of the blank needs to be checked firstly at one side before the processing by the two-thimble positioning method is insufficient, and because the allowance of the blank-shaped molded surface is not checked enough by a template for common finished product side measurement, a new blank checking template is needed to be matched with the two-thimble positioning mode for the fan blade of the axial fan, the corresponding point-type blank checking template is inserted into a molded surface part guide bar, and the allowance condition of the air passage part of the fan blade is observed.
Disclosure of Invention
The invention aims to solve the technical problem of providing a universal frame measuring tool for a movable blade and a wind blade of an axial flow fan, which can realize the universality of three thimble side quantities of the movable blade of the fan and two thimble sides of a cylindrical handle fan blade.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a general frame measuring tool of axial fan movable vane and fan blade which innovation point lies in: comprises a supporting bottom plate, a side frame, a guide bar, an upper thimble mechanism, a lower thimble mechanism and a point type molded surface template;
the support bottom plate is horizontally arranged, the side frames are provided with a pair of parallel and vertical sides arranged on the upper end face of the support bottom plate, and the top ends of the side frames are connected through an upper supporting plate; the side frame is provided with a plurality of grooves for accommodating guide strips from top to bottom, and the guide strips are embedded in the grooves of the side frame and extend to the inner side of the side frame;
the upper thimble mechanism comprises an upper thimble seat, an upper adjusting hand wheel and an upper thimble; the upper ejector pin seat is vertically arranged on the inner wall of the side frame and can be adjusted and moved along the inner wall of the side frame along the vertical direction, a through hole for accommodating an upper ejector pin is formed in the upper ejector pin seat along the vertical direction, the upper ejector pin penetrates through the through hole of the upper ejector pin seat, and one end of the upper ejector pin is connected with the upper adjusting hand wheel to drive the upper ejector pin along the vertical direction;
the lower thimble mechanism comprises a lower thimble seat, a lower supporting plate, a connecting rod, a lower adjusting hand wheel and a lower thimble group; the lower ejector pin seat is vertically arranged on the inner wall of the side frame, and a plurality of ejector pin holes for accommodating the lower ejector pin group are respectively arranged on the lower ejector pin seat; the lower supporting plate is positioned below the lower ejector pin seat, and a constant-height cushion is arranged between the lower supporting plate and the lower ejector pin seat; the lower supporting plate is provided with a hole for accommodating the connecting rod to pass through, the connecting rod passes through the lower supporting plate, and the lower adjusting hand wheel is arranged at one end of the connecting rod; the lower thimble group comprises a single thimble and a double thimble, wherein the single thimble is arranged in the middle of the lower thimble seat, and one end of the single thimble is connected with the other end of the connecting rod; the double ejector pins are symmetrically arranged on two sides of the center of the lower ejector pin seat, and are connected with the other end of the connecting rod through a movable connecting plate;
the point type profile template is arranged on the guide strip and comprises a fan blade inner arc template and a fan blade back arc template; the inner arc template and the back arc template of the fan blade comprise a main board body and cambered surface laminating teeth; the main board body comprises a guide plate and a limiting plate; the guide plate and the limiting plate are of an integral structure, the limiting plate is arranged on one side edge of the guide plate and forms a step structure with the guide plate, and the length of the limiting plate is greater than that of the guide plate; the cambered surface laminating tooth sets up on the deflector with limiting plate relative one side edge.
Further, the movable connecting plate is provided with a balance adjusting groove horizontally, and one end of the double ejector pin is connected in the balance adjusting groove through a bolt.
Further, at least three cambered surface laminating teeth are arranged on the inner arc template of the fan blade, and the cambered surface laminating teeth on the inner arc template of the fan blade are provided with arc profiles laminated with the inner arc of the fan blade; at least two cambered surface laminating teeth are arranged on the fan blade back-arc template, and the cambered surface laminating teeth on the fan blade back-arc template are provided with arc profiles which are laminated with the fan blade back-arc; the center line of the cambered surface laminating tooth on the fan blade back arc template coincides with the center line of the cambered surface laminating tooth on the fan blade inner arc template.
Further, a compression spring is arranged in the through hole for accommodating the upper thimble, a thimble sleeve is arranged below the compression spring, and the upper thimble moves upwards under the action of the compression spring when the upper adjusting hand wheel rotates upwards.
Furthermore, the outside of the side frame is provided with a reinforcing rib, so that the side frame is prevented from deforming and the measurement accuracy is improved.
The invention has the advantages that:
1) According to the invention, two floating lower ejector pins or a single lower ejector pin are adopted, so that the universal use of the side quantity of the three ejector pins of the moving blade of the fan and the two ejector pins of the cylindrical handle fan blade can be realized; the blades are lifted or lowered to an ideal position through the matching of the lower adjusting hand wheel and the connecting rod, and the lower thimble group can be completely attached to the thimble holes on the blades, so that the blades can be accurately installed every time, and the adjustment is convenient; the adopted point contact blank inspection template has small contact area, is easy to inspect more or less allowance, ensures that the blank cannot be completely milled during milling processing, and achieves better inspection effect.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
Fig. 1 is a schematic structural view of a universal frame measuring tool for blades and vanes of an axial flow fan according to the present invention.
FIG. 2 is a block diagram of a lower thimble assembly of a universal frame gauge for axial flow fan blades and vanes of the present invention.
FIG. 3 is a diagram of the inner arc template of the blade of the universal frame measuring tool for the axial flow fan blade and the wind blade.
FIG. 4 is a diagram of a back-arc template of a blade of an axial flow fan blade and a universal frame gauge of the blade of the present invention.
Detailed Description
The following examples will provide those skilled in the art with a more complete understanding of the present invention and are not intended to limit the invention to the embodiments described.
The universal frame measuring tool for the movable blades and the wind blades of the axial flow fan comprises a supporting bottom plate 1, a side frame 2, a guide strip 3, an upper thimble mechanism 4, a lower thimble mechanism 5 and a point type profile template 6, wherein the upper thimble mechanism and the lower thimble mechanism are arranged on the supporting bottom plate.
The support bottom plate 1 is horizontally arranged, the side frames 2 are provided with a pair of parallel and vertical sides arranged on the upper end face of the support bottom plate 1, and the top ends of the side frames 2 are connected through an upper supporting plate 21; the side frame 2 is provided with a plurality of grooves for accommodating the guide strips 3 from top to bottom, and the guide strips 3 are embedded into the grooves of the side frame 2 and extend to the inner side of the side frame 2.
The upper thimble mechanism 4 comprises an upper thimble seat 41, an upper adjusting hand wheel 42 and an upper thimble 43; the upper thimble seat 41 is vertically arranged on the inner wall of the side frame 2 and can be adjusted and moved along the inner wall of the side frame 2 along the vertical direction, a through hole for accommodating the upper thimble 43 is formed in the upper thimble seat 41 along the vertical direction, the upper thimble 43 penetrates through the through hole of the upper thimble seat 41, and one end of the upper thimble 43 is connected with the upper adjusting hand wheel 42 to drive the upper thimble 43 along the vertical direction.
The lower ejector pin mechanism 5 comprises a lower ejector pin seat 51, a lower supporting plate 52, a connecting rod 53, a lower adjusting hand wheel 54 and a lower ejector pin group 55; the lower ejector pin seat 51 is vertically arranged on the inner wall of the side frame 2, and a plurality of ejector pin holes for accommodating the lower ejector pin group 55 are respectively arranged on the lower ejector pin seat 51; the lower supporting plate 52 is positioned below the lower ejector pin seat 51, and a contour cushion 56 is arranged between the lower supporting plate 52 and the lower ejector pin seat 51; the lower supporting plate 52 is provided with a hole for receiving the connecting rod to pass through, the connecting rod 53 passes through the lower supporting plate 52, and the lower regulating hand wheel 54 is arranged at one end of the connecting rod 53; the lower thimble group 55 comprises a single thimble 551 and a double thimble 552, the single thimble 551 is arranged in the middle of the lower thimble seat 51, and one end of the single thimble is connected with the other end of the connecting rod 53; the double ejector pins 552 are symmetrically arranged at two sides of the center of the lower ejector pin seat 51, and the double ejector pins 552 are connected with the other end of the connecting rod 53 through a movable connecting plate 553.
The point type profile template 6 is arranged on the guide bar and comprises a fan blade inner arc template 61 and a fan blade back arc template 62; the blade inner arc template 61 and the blade back arc template 62 both comprise a main plate body 63 and cambered surface laminating teeth 64; the main board body 63 comprises a guide plate 65 and a limiting plate 66; the guide plate 65 and the limit plate 66 are of an integral structure, the limit plate 66 is arranged on one side edge of the guide plate 65 and forms a step structure with the guide plate 65, and the length of the limit plate 66 is greater than that of the guide plate 65; the cambered surface laminating tooth 64 is arranged on one side edge of the guide plate 65 opposite to the limiting plate 66.
The movable connecting plate 553 is provided with a balance adjusting groove which is horizontally arranged, and one end of the double ejector pins 552 is connected in the balance adjusting groove through bolts.
At least three cambered surface laminating teeth 64 are arranged on the inner arc template 61 of the fan blade, and the cambered surface laminating teeth 64 on the inner arc template 61 of the fan blade are provided with cambered contours laminated with the inner arc of the fan blade; at least two cambered surface laminating teeth 64 are arranged on the fan blade back-arc template 62, and the cambered surface laminating teeth 64 on the fan blade back-arc template 62 are provided with cambered contours which are laminated with the fan blade back-arc; the center line of the cambered surface laminating tooth on the fan blade back arc template coincides with the center line of the cambered surface laminating tooth on the fan blade inner arc template.
A compression spring is arranged in the through hole for accommodating the upper thimble, a thimble sleeve is arranged below the compression spring, and the upper thimble moves upwards under the action of the compression spring when the upper regulating hand wheel 42 rotates upwards.
The outside of the side frame 2 is provided with a reinforcing rib, so that the side frame is prevented from deforming and the measurement accuracy is improved.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. The utility model provides an axial fan movable vane and general frame measuring tool of fan which characterized in that: comprises a supporting bottom plate, a side frame, a guide bar, an upper thimble mechanism, a lower thimble mechanism and a point type molded surface template;
the support bottom plate is horizontally arranged, the side frames are provided with a pair of parallel and vertical sides arranged on the upper end face of the support bottom plate, and the top ends of the side frames are connected through an upper supporting plate; the side frame is provided with a plurality of grooves for accommodating guide strips from top to bottom, and the guide strips are embedded in the grooves of the side frame and extend to the inner side of the side frame;
the upper thimble mechanism comprises an upper thimble seat, an upper adjusting hand wheel and an upper thimble; the upper ejector pin seat is vertically arranged on the inner wall of the side frame and can be adjusted and moved along the inner wall of the side frame along the vertical direction, a through hole for accommodating an upper ejector pin is formed in the upper ejector pin seat along the vertical direction, the upper ejector pin penetrates through the through hole of the upper ejector pin seat, and one end of the upper ejector pin is connected with the upper adjusting hand wheel to drive the upper ejector pin along the vertical direction;
the lower thimble mechanism comprises a lower thimble seat, a lower supporting plate, a connecting rod, a lower adjusting hand wheel and a lower thimble group; the lower ejector pin seat is vertically arranged on the inner wall of the side frame, and a plurality of ejector pin holes for accommodating the lower ejector pin group are respectively arranged on the lower ejector pin seat; the lower supporting plate is positioned below the lower ejector pin seat, and a constant-height cushion is arranged between the lower supporting plate and the lower ejector pin seat; the lower supporting plate is provided with a hole for accommodating the connecting rod to pass through, the connecting rod passes through the lower supporting plate, and the lower adjusting hand wheel is arranged at one end of the connecting rod; the lower thimble group comprises a single thimble and a double thimble, wherein the single thimble is arranged in the middle of the lower thimble seat, and one end of the single thimble is connected with the other end of the connecting rod; the double ejector pins are symmetrically arranged on two sides of the center of the lower ejector pin seat, and are connected with the other end of the connecting rod through a movable connecting plate;
the point type profile template is arranged on the guide strip and comprises a fan blade inner arc template and a fan blade back arc template; the inner arc template and the back arc template of the fan blade comprise a main board body and cambered surface laminating teeth; the main board body comprises a guide plate and a limiting plate; the guide plate and the limiting plate are of an integral structure, the limiting plate is arranged on one side edge of the guide plate and forms a step structure with the guide plate, and the length of the limiting plate is greater than that of the guide plate; the cambered surface laminating teeth are arranged on one side edge of the guide plate, which is opposite to the limiting plate;
the movable connecting plate is provided with a balance adjusting groove horizontally, and one end of the double ejector pins is connected in the balance adjusting groove through bolts;
at least three cambered surface laminating teeth are arranged on the inner arc sample plate of the fan blade, and the cambered surface laminating teeth on the inner arc sample plate of the fan blade are provided with arc profiles laminated with the inner arc of the fan blade; at least two cambered surface laminating teeth are arranged on the fan blade back-arc template, and the cambered surface laminating teeth on the fan blade back-arc template are provided with arc profiles which are laminated with the fan blade back-arc; the center line of the cambered surface laminating tooth on the fan blade back arc template is overlapped with the center line of the cambered surface laminating tooth on the fan blade inner arc template;
the through hole for accommodating the upper thimble is internally provided with a compression spring, a thimble sleeve is arranged below the compression spring, and the upper thimble moves upwards under the action of the compression spring when the upper adjusting hand wheel rotates upwards.
2. The universal frame gauge for blades and vanes of an axial flow fan as set forth in claim 1, wherein: reinforcing ribs are arranged on the outer sides of the side frames.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821307111 | 2018-08-14 | ||
| CN2018213071117 | 2018-08-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108895948A CN108895948A (en) | 2018-11-27 |
| CN108895948B true CN108895948B (en) | 2024-04-05 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821496395.9U Active CN208780102U (en) | 2018-08-14 | 2018-09-13 | A kind of axial flow blower movable vane and fan blade general framework measurer |
| CN201811067011.6A Active CN108895948B (en) | 2018-08-14 | 2018-09-13 | Universal frame measuring tool for movable blades and wind blades of axial flow fan |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821496395.9U Active CN208780102U (en) | 2018-08-14 | 2018-09-13 | A kind of axial flow blower movable vane and fan blade general framework measurer |
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| Country | Link |
|---|---|
| CN (2) | CN208780102U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208780102U (en) * | 2018-08-14 | 2019-04-23 | 南通中能机械制造有限公司 | A kind of axial flow blower movable vane and fan blade general framework measurer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203443507U (en) * | 2013-09-06 | 2014-02-19 | 哈尔滨汽轮机厂有限责任公司 | Combined detection measuring tool of steam turbine blade with dovetail-shaped blade root |
| CN103940317A (en) * | 2014-04-25 | 2014-07-23 | 哈尔滨汽轮机厂有限责任公司 | Small moving vane universal combination detecting measuring tool in steam turbine |
| CN106440996A (en) * | 2016-08-30 | 2017-02-22 | 南通中能机械制造有限公司 | Three-centre polyhedral measuring fixture for standard blades |
| CN207487562U (en) * | 2017-08-02 | 2018-06-12 | 南通中能机械制造有限公司 | A kind of blade profile molded line measures special measuring tool |
| CN208780102U (en) * | 2018-08-14 | 2019-04-23 | 南通中能机械制造有限公司 | A kind of axial flow blower movable vane and fan blade general framework measurer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI317418B (en) * | 2007-03-01 | 2009-11-21 | Fu Kue Chang | A measuring method for the surface of a propeller |
-
2018
- 2018-09-13 CN CN201821496395.9U patent/CN208780102U/en active Active
- 2018-09-13 CN CN201811067011.6A patent/CN108895948B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203443507U (en) * | 2013-09-06 | 2014-02-19 | 哈尔滨汽轮机厂有限责任公司 | Combined detection measuring tool of steam turbine blade with dovetail-shaped blade root |
| CN103940317A (en) * | 2014-04-25 | 2014-07-23 | 哈尔滨汽轮机厂有限责任公司 | Small moving vane universal combination detecting measuring tool in steam turbine |
| CN106440996A (en) * | 2016-08-30 | 2017-02-22 | 南通中能机械制造有限公司 | Three-centre polyhedral measuring fixture for standard blades |
| CN207487562U (en) * | 2017-08-02 | 2018-06-12 | 南通中能机械制造有限公司 | A kind of blade profile molded line measures special measuring tool |
| CN208780102U (en) * | 2018-08-14 | 2019-04-23 | 南通中能机械制造有限公司 | A kind of axial flow blower movable vane and fan blade general framework measurer |
Non-Patent Citations (1)
| Title |
|---|
| 汽轮机中级叶片量具外观设计;吕航鹰;;河北农机(05);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN208780102U (en) | 2019-04-23 |
| CN108895948A (en) | 2018-11-27 |
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