CN114354066B - Testing mechanism for impeller production and testing method thereof - Google Patents
Testing mechanism for impeller production and testing method thereof Download PDFInfo
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- CN114354066B CN114354066B CN202111463047.8A CN202111463047A CN114354066B CN 114354066 B CN114354066 B CN 114354066B CN 202111463047 A CN202111463047 A CN 202111463047A CN 114354066 B CN114354066 B CN 114354066B
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Abstract
The invention relates to a testing mechanism for impeller production and a testing method thereof, belonging to the technical field of impeller testing. The first top of fixedly connected with tight spring between first sliding block and the spout makes things convenient for the restoration of grafting pole, through fixedly connected with fixed fixture block on the grafting pole, clearance block between fixed fixture block and the activity fixture block makes things convenient for the dwang to fix, makes things convenient for the installation of impeller, through pressing the opening and shutting of pole control activity fixture block, makes things convenient for the restoration of grafting pole. First threaded rod rotates, and the convenience is adjusted the height of movable rod, guarantees that the impeller lies in the center of test piece upper shed portion all the time, and the motion trail of movable rod is guaranteed to second sliding block and first dead lever sliding connection. The rotation of two-way screw rod of second hand wheel control changes the distance between the regulating block, and first hand wheel is adjusted the fly leaf, and the convenience is adjusted according to the impeller of equidimension not, guarantees the laminating of test gyro wheel and impeller.
Description
Technical Field
The invention belongs to the technical field of impeller testing, and relates to a testing mechanism for impeller production and a testing method thereof.
Background
The centrifugal fan impeller is because factors such as the asymmetric geometry that material inequality or blank defect, the error that produces in processing and the assembly, design have for when rotatory, the centrifugal inertia force that every minute mass point produced on it can not offset each other, and centrifugal inertia force acts on other mechanisms, causes the vibration, produces the noise, mechanical wear accelerates, consequently, must pass through dynamic balance test before the impeller installation, and reach the balanced precision of allowwing through increase the balancing piece on the impeller.
In the prior art, as shown in fig. 1, most impellers are installed in a test block, are fixedly installed with a rotating rod, and are driven and tested by a motor, but the prior art still has some defects, cannot adjust the distance between two test rollers, is limited in the range of different radiuses of a long shaft, and is relatively complicated in adjustment operation; when the impeller and the rotating rod are installed through the bolts, the rotating rod is easy to rotate along with the bolts, and the impeller is inconvenient to install; meanwhile, the height of the test block is inconvenient to adjust according to the size of the impeller, and the impeller cannot be guaranteed to be located in the center of the test block all the time.
Disclosure of Invention
The invention aims to provide a testing mechanism for impeller production and a testing method thereof, and the testing mechanism has the characteristics of facilitating the installation of an impeller and a rotating rod, facilitating the fixation of the rotating rod, facilitating the height adjustment of a testing block, and facilitating the adjustment of the distance between testing wheels according to the size of the impeller.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a testing mechanism is used in impeller production, includes base main part, fixed support rod and dwang, fixed support rod and base main part fixed connection, dwang and fixed support rod rotate through connection, and the junction has seted up first through-hole, be provided with control mechanism on the fixed support rod, control mechanism includes two fixed plates, two fixed plate symmetry fixed connection is on the top of fixed support rod, the activity is provided with the peg graft pole between the fixed plate, the first sliding block of bilateral symmetry fixedly connected with of peg graft pole, first sliding block and the fixed plate sliding connection who corresponds the limit, and set up the spout with first sliding block adaptation on the fixed plate, be provided with the canceling release mechanical system that can supply the peg graft pole to reset in the spout, the peg graft pole is towards the one end symmetry fixedly connected with fixed fixture block of fixed support rod, the second through-hole with peg graft pole adaptation is seted up to the inside of fixed support rod, the inside of fixed support rod is provided with the cavity, and first through-hole all communicates with each other with second through-hole and cavity, set up the hole with the peg graft pole adaptation on the dwang, and be provided with the block mechanism of control peg graft movable rod in the cavity. Install second driving motor in the base main part, the one end of dwang is located the depressed part of test piece, the other end and second driving motor's output shaft fixed connection.
As a preferred technical solution of the testing mechanism for impeller production of the present invention, a first sliding plate is slidably connected to the base main body, a sleeve housing is fixedly connected to the first sliding plate, a movable rod is movably connected to the inside of the sleeve housing, a restoring mechanism is disposed between the sleeve housing and the movable rod, the restoring mechanism includes a first threaded rod, the first threaded rod is rotatably connected to the inside of the sleeve housing, a first driving motor is installed inside the sleeve housing, an output shaft of the first driving motor is fixedly connected to one end of the first threaded rod, one end of the first threaded rod different from the first driving motor is screwed to the movable rod, first fixing rods are symmetrically and fixedly connected to inner walls of both sides of the sleeve housing, a second sliding block is symmetrically and fixedly connected to the movable rod, the second sliding block is slidably connected to the first fixing rod on the corresponding side, and a sliding groove adapted to the second sliding block is formed on the inner wall of the sleeve housing.
According to the preferable technical scheme of the testing mechanism for impeller production, one end of the movable rod, which is different from the first threaded rod, is fixedly connected with a testing block, the testing block is of a concave structure, an adjusting mechanism is arranged in the concave part, the adjusting mechanism comprises a movable plate, the movable plate is of a circular arc structure, a second fixed rod and a second threaded rod are respectively arranged in inner walls of two sides of the testing block, the second fixed rod is symmetrical to the second threaded rod, the second fixed rod is fixedly connected with the testing block, the second threaded rod is rotatably connected with the testing block, one end of the second threaded rod extends to the outside of the testing block and is fixedly connected with a first hand wheel, a bidirectional screw rod is rotatably connected in the concave part of the testing block, one end of the bidirectional screw rod extends to the outside of the testing block and is fixedly connected with a second hand wheel, the symmetrical threads on the bidirectional screw rod are rotatably connected with an adjusting block, the bidirectional screw rod is positioned below the movable plate, one side of the adjusting block, which faces the movable plate, and one side of the bidirectional screw rod faces the bidirectional screw rod, and one side of the movable plate faces the bidirectional screw rod, and one side of the adjusting block is fixedly connected with a third sliding block, and the sliding block is arranged in the concave part.
The preferable technical scheme of the testing method of the testing mechanism for impeller production comprises the following steps:
the method comprises the following steps: the inserting rod is pressed downwards to penetrate through the clamping hole, the fixed clamping block is fixed in the clamping mechanism to fix the position of the rotating rod, the impeller is installed at one end of the rotating rod, and after the impeller is installed, the inserting rod is separated from the clamping hole through the matching of the clamping mechanism and the reset mechanism, so that the rotating rod rotates again;
step two: respectively rotating the first hand wheel and the second hand wheel according to the size of the impeller to drive the second threaded rod and the bidirectional screw rod to rotate, and adjusting the distance between the test rollers;
step three: and (2) driving the first threaded rod to rotate through the first driving motor according to the height of the impeller installed in the step one, enabling the movable rod to move up and down, adjusting the height of the testing block, enabling the impeller to be located in the center of the concave portion of the testing block, and after the adjustment is completed, moving the testing block through the first sliding plate, and enabling the impeller to be attached to the testing roller.
The invention has the beneficial effects that:
(1) The first top of fixedly connected with tight spring between first sliding block and the spout makes things convenient for the restoration of peg graft pole, and through the fixed fixture block of fixedly connected with on the peg graft pole, clearance block between fixed fixture block and the activity fixture block is conveniently fixed the dwang, makes things convenient for the installation of impeller, through the opening and shutting of pressing the movable fixture block of pole control, makes things convenient for the restoration of peg graft pole.
(2) Drive first threaded rod through a driving motor and rotate, conveniently adjust the height of movable rod, guarantee that the impeller is located the center of test piece upper shed portion all the time, symmetry fixedly connected with second sliding block on the movable rod, second sliding block and first dead lever sliding connection guarantee the movement track of movable rod.
(3) The distance between the adjusting blocks is changed by controlling the rotation of the two-way screw rod through the second hand wheel, the movable plate is adjusted by rotating the first hand wheel, the movable plate is conveniently adjusted according to impellers of different sizes, and the test roller is guaranteed to be attached to the impellers.
Drawings
To facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a prior art configuration;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of the control mechanism of the present invention;
FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3;
FIG. 5 is an enlarged schematic view of the adjustment mechanism of the present invention;
FIG. 6 is an enlarged schematic view of the centering mechanism of the present invention;
FIG. 7 is a schematic perspective view of a first sliding plate according to the present invention;
in the figure: 1. a base body; 11. a first recess; 2. a first sliding plate; 3. fixing the support rod; 4. a control mechanism; 41. a fixing plate; 411. a third fixing bar; 412. a first urging spring; 42. a plug rod; 421. a first slider; 43. fixing the fixture block; 44. a second urging spring; 45. a pressing rod; 46. a clamping rod; 47. a movable clamping block; 5. rotating the rod; 51. a clamping hole; 6. a test block; 7. a righting mechanism; 71. sleeving the shell; 72. a movable rod; 73. a first threaded rod; 74. a second slider; 75. a first fixing lever; 76. a first drive motor; 8. an adjustment mechanism; 81. a movable plate; 82. a second fixing bar; 83. a second threaded rod; 84. a first hand wheel; 85. a second hand wheel; 86. an adjusting block; 87. a bidirectional screw; 88. testing the roller; 89. a third slider; 9. a second drive motor.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 2-7, a testing mechanism for impeller production includes a base main body 1, a fixed support rod 3 and a rotating rod 5, the fixed support rod 3 is fixedly connected to the base main body 1, the rotating rod 5 is rotatably connected to the fixed support rod 3 in a penetrating manner, and a first through hole is formed at a joint of the rotating rod 5 and the fixed support rod 3, a control mechanism 4 is disposed on the fixed support rod 3, the control mechanism 4 includes two fixing plates 41, the two fixing plates 41 are symmetrically and fixedly connected to a top end of the fixed support rod 3, an insertion rod 42 is movably disposed between the fixing plates 41, first sliding blocks 421 are symmetrically and fixedly connected to two sides of the insertion rod 42, the first sliding blocks 421 are slidably connected to the fixing plates 41 on corresponding sides, a sliding groove adapted to the first sliding blocks 421 is formed in the fixing plates 41, a reset mechanism for resetting the insertion rod 42 is disposed in the sliding groove, a fixing block 43 is symmetrically and fixedly connected to one end of the insertion rod 42 facing the fixed support rod 3, a second through hole adapted to the rotating rod 42 is formed in the fixing support rod 3, a cavity is formed in the fixed support rod 3, and a clamping mechanism 51 adapted to the insertion rod is disposed in the fixing rod 5. Install second driving motor 9 on the base main part 1, the one end of dwang 5 is located the depressed part of test piece 6, the other end and second driving motor 9's output shaft fixed connection.
In this embodiment, the clamping mechanism includes two pressing rods 45, the clamping rods 46 are symmetrically and rotatably connected in the cavity inside the fixed support rod 3, one end of each pressing rod 45 extends into the cavity and is rotatably connected with one end of the corresponding clamping rod 46, one end of each clamping rod 46, which is different from the end of each pressing rod 45, is fixedly connected with a movable clamping block 47, the movable clamping block 47 is clamped with the fixed clamping block 43, a second tightening spring 44 is fixedly connected between each pressing rod 45 and the fixed support rod 3, the second tightening spring 44 is sleeved on each pressing rod 45, and the fixed clamping block 43 and the movable clamping block 47 are clamped in a gap formed between each pressing rod 45 and each movable clamping block 47. The reset mechanism includes a third fixing rod 411, the third fixing rod 411 is fixedly connected to the fixing plate 41 through a sliding slot, a first jacking spring 412 is fixedly connected between the first sliding block 421 and the sliding slot, and the first jacking spring 412 is sleeved on one end of the third fixing rod 411 facing the fixing support rod 3. The first tight spring 412 in top of fixedly connected with between first sliding block 421 and the spout makes things convenient for the reseing of peg rod 42, through fixedly connected with fixed fixture block 43 on peg rod 42, the clearance block between fixed fixture block 43 and the movable fixture block 47 conveniently fixes dwang 5, makes things convenient for the installation of impeller, through opening and shutting of pressing pole 45 control movable fixture block 47, makes things convenient for the reseing of peg rod 42.
Specifically, the base body 1 is slidably connected with a first sliding plate 2, the first sliding plate 2 is fixedly connected with a sleeve shell 71, the inner portion of the sleeve shell 71 is movably connected with a movable rod 72, a correcting mechanism 7 is arranged between the sleeve shell 71 and the movable rod 72, the correcting mechanism 7 comprises a first threaded rod 73, the first threaded rod 73 is rotatably connected with the inner portion of the sleeve shell 71, a first driving motor 76 is arranged inside the sleeve shell 71, an output shaft of the first driving motor 76 is fixedly connected with one end of the first threaded rod 73, which is different from the first driving motor 76, is in threaded connection with the movable rod 72, first fixing rods 75 are symmetrically and fixedly connected with the inner walls of two sides of the sleeve shell 71, a second sliding block 74 is symmetrically and fixedly connected with the movable rod 72, the second sliding block 74 is slidably connected with the first fixing rods 75 on the corresponding side, and a sliding groove matched with the second sliding block 74 is formed in the inner wall of the sleeve shell 71.
In this embodiment, the base body 1 is symmetrically provided with first recessed portions 11, and two ends of the first sliding plate 2 slide in the corresponding first recessed portions 11. Drive first threaded rod 73 through first driving motor 76 and rotate, conveniently adjust the height of movable rod 72, guarantee that the impeller is located the center of test block 6 upper recess all the time, symmetry fixedly connected with second sliding block 74 on the movable rod 72, second sliding block 74 and first dead lever 75 sliding connection guarantee the movement track of movable rod 72.
Specifically, the test block 6 is of a concave structure, the recessed portion is internally provided with an adjusting mechanism 8, the adjusting mechanism 8 comprises a movable plate 81, the movable plate 81 is of a circular arc-shaped structure, a second fixing rod 82 and a second threaded rod 83 are respectively arranged in inner walls of two sides of the test block 6, the second fixing rod 82 is symmetrical to the second threaded rod 83, the second fixing rod 82 is fixedly connected with the test block 6, the second threaded rod 83 is rotatably connected with the test block 6, one end of the second threaded rod 83 extends to the outside of the test block 6 and is fixedly connected with a first hand wheel 84, the recessed portion of the test block 6 is rotatably connected with a bidirectional screw 87, one end of the bidirectional screw 87 extends to the outside of the test block 6 and is fixedly connected with a second hand wheel 85, the bidirectional screw 87 is rotatably connected with an adjusting block 86 through symmetrical threads, the bidirectional screw 87 is located below the movable plate 81, one side of the adjusting block 86, which faces one side of the movable plate 81, and one side of the movable plate 81, which faces the bidirectional screw 87, is fixedly connected with a third sliding block 89, and a sliding block 89 is arranged on one side of the adjusting block which is different from the test block 88.
In this embodiment, the second hand wheel 85 controls the rotation of the two-way screw 87, the distance between the adjusting blocks 86 is changed, the movable plate 81 is adjusted by the rotation of the first hand wheel 84, the adjustment is convenient for the impellers of different sizes, and the fitting between the testing roller 88 and the impellers is ensured.
The invention comprises the following steps when in use:
the method comprises the following steps: the inserting rod 42 is pressed downwards to enable the inserting rod 42 to penetrate through the clamping hole 51, the fixed clamping block 43 is fixed in the clamping mechanism, specifically, the fixed clamping block 43 is clamped with the space between the two movable clamping blocks 47, the position of the rotating rod 5 is fixed, the impeller is installed at one end of the rotating rod 5, after the installation is finished, the clamping mechanism is matched with the resetting mechanism, specifically, the pressing rod 45 is pressed to enable the clamping rod 46 to rotate, the two movable clamping blocks 47 are opened, the fixed clamping block 43 is separated from the movable clamping blocks 47, at the moment, the first jacking spring 412 enables the first sliding block 421 to move upwards, the inserting rod 42 is separated from the clamping hole 51, and the rotating rod 5 rotates again;
step two: respectively rotating a first hand wheel 84 and a second hand wheel 85 according to the size of the impeller to drive a second threaded rod 83 and a bidirectional threaded rod 87 to rotate, and adjusting the distance between the test rollers 88;
step three: according to the height of the impeller installed in the first step, the first threaded rod 73 is driven to rotate through the first driving motor 76, the movable rod 72 moves up and down, the height of the testing block 6 is adjusted, the impeller is located in the center of the concave portion of the testing block 6, and after the adjustment is completed, the testing block 6 is moved through the first sliding plate 2, and the impeller is attached to the testing roller 88.
Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present invention.
Claims (3)
1. The utility model provides a accredited testing organization is used in impeller production, includes base main part (1), fixed stay pole (3) and dwang (5), fixed stay pole (3) and base main part (1) fixed connection, dwang (5) rotate through connection with fixed stay pole (3), and the junction has seted up first through-hole, its characterized in that: the fixed supporting rod (3) is provided with a control mechanism (4), the control mechanism (4) comprises two fixing plates (41), the two fixing plates (41) are symmetrically and fixedly connected to the top end of the fixed supporting rod (3), an inserting rod (42) is movably arranged between the fixing plates (41), first sliding blocks (421) are symmetrically and fixedly connected to two sides of the inserting rod (42), the first sliding blocks (421) are slidably connected with the fixing plates (41) on the corresponding sides, a sliding groove matched with the first sliding blocks (421) is formed in each fixing plate (41), a resetting mechanism capable of resetting the inserting rod (42) is arranged in each sliding groove, one end, facing the fixed supporting rod (3), of each inserting rod (42) is symmetrically and fixedly connected with a fixed clamping block (43), a second through hole matched with the inserting rod (42) is formed in each fixing supporting rod (3), a cavity is formed in each fixing supporting rod (3), the first through hole is communicated with the second through hole, a clamping hole (51) matched with the inserting rod (42) is formed in each rotating rod (5), and a clamping mechanism for controlling the inserting rod (42) to move is arranged in each cavity;
the base is characterized in that a first sliding plate (2) is connected onto the base main body (1) in a sliding manner, a sleeve shell (71) is fixedly connected onto the first sliding plate (2), a movable rod (72) is movably connected into the sleeve shell (71), and a correcting mechanism (7) for adjusting the movable rod (72) is arranged between the sleeve shell (71) and the movable rod (72);
the righting mechanism (7) comprises a first threaded rod (73), the first threaded rod (73) is rotatably connected with the inside of the sleeved shell (71), a first driving motor (76) is installed inside the sleeved shell (71), an output shaft of the first driving motor (76) is fixedly connected with one end of the first threaded rod (73), one end, different from the first driving motor (76), of the first threaded rod (73) is connected with a movable rod (72) in a threaded manner, first fixing rods (75) are symmetrically and fixedly connected with the inner walls of the two sides of the sleeved shell (71), second sliding blocks (74) are symmetrically and fixedly connected with the movable rod (72), the second sliding blocks (74) are slidably connected with the first fixing rods (75) on the corresponding sides, and sliding grooves matched with the second sliding blocks (74) are formed in the inner wall of the sleeved shell (71);
one end of the movable rod (72), which is different from the first threaded rod (73), is fixedly connected with a testing block (6), the testing block (6) is of a concave structure, and an adjusting mechanism (8) for adjusting the space size in the concave part is arranged in the concave part;
the adjusting mechanism (8) comprises a movable plate (81), the movable plate (81) is of a circular arc structure, a second fixed rod (82) and a second threaded rod (83) are respectively arranged in the inner walls of the two sides of the test block (6), the second fixed rod (82) is symmetrical to the second threaded rod (83), the second fixed rod (82) is fixedly connected with the test block (6), the second threaded rod (83) is rotationally connected with the test block (6), one end of the second threaded rod (83) extends to the outside of the test block (6) and is fixedly connected with a first hand wheel (84), a bidirectional screw (87) is rotationally connected in the concave part of the test block (6), one end of the bidirectional screw (87) extends to the outside of the test block (6) and is fixedly connected with a second hand wheel (85), the two-way screw (87) is symmetrically screwed with adjusting blocks (86), the bidirectional screw (87) is positioned below the movable plate (81), a test roller (88) is fixedly connected on one side of the adjusting block (86) facing the movable plate (81) and one side of the movable plate (81) facing the bidirectional screw (87), regulating block (86) are different from fixedly connected with third sliding block (89) on one side of test gyro wheel (88), set up the spout with third sliding block (89) adaptation in the depressed part.
2. The testing mechanism for impeller production according to claim 1, wherein: install second driving motor (9) on base main part (1), the one end of dwang (5) is located the depressed part of test piece (6), the output shaft fixed connection of the other end and second driving motor (9).
3. The method for testing the testing mechanism for impeller production according to claim 1 or 2, wherein: the method comprises the following steps:
the method comprises the following steps: the inserting rod (42) is pressed downwards to enable the inserting rod (42) to penetrate through the clamping hole (51), the fixed clamping block (43) is fixed in the clamping mechanism to enable the position of the rotating rod (5) to be fixed, the impeller is installed at one end of the rotating rod (5), and after the impeller is installed, the inserting rod (42) is separated from the clamping hole (51) through the matching of the clamping mechanism and the reset mechanism, so that the rotating rod (5) rotates again;
step two: respectively rotating a first hand wheel (84) and a second hand wheel (85) according to the size of the impeller to drive a second threaded rod (83) and a bidirectional screw rod (87) to rotate, and adjusting the distance between the test rollers (88);
step three: according to the height of the impeller installed in the first step, the first threaded rod (73) is driven to rotate through the first driving motor (76), the movable rod (72) is made to move up and down, the height of the testing block (6) is adjusted, the impeller is made to be located in the center of the concave portion of the testing block (6), and after adjustment is completed, the testing block (6) is moved through the first sliding plate (2), and the impeller is made to be attached to the testing roller (88).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111463047.8A CN114354066B (en) | 2021-12-02 | 2021-12-02 | Testing mechanism for impeller production and testing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111463047.8A CN114354066B (en) | 2021-12-02 | 2021-12-02 | Testing mechanism for impeller production and testing method thereof |
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| CN114354066A CN114354066A (en) | 2022-04-15 |
| CN114354066B true CN114354066B (en) | 2022-12-13 |
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| JP2007183203A (en) * | 2006-01-10 | 2007-07-19 | Ishikawajima Harima Heavy Ind Co Ltd | Rotation balance test apparats and rotation balance correcting method for supercharger with motor |
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| CN205691286U (en) * | 2016-05-18 | 2016-11-16 | 上虞市江南风机有限公司 | A kind of bracing frame and the blower fan dynamic balancing machine with this bracing frame |
| CN208313508U (en) * | 2018-05-28 | 2019-01-01 | 河南森源重工有限公司 | Dynamic balance of impeller experimental rig and its test shaft assembly |
| CN208751788U (en) * | 2018-09-28 | 2019-04-16 | 重庆科奥风机制造有限公司 | A kind of draught fan impeller balancing machine |
| CN112484919A (en) * | 2020-11-26 | 2021-03-12 | 安徽国成顺风风力发电有限公司 | Supporting structure for testing dynamic balance of fan impeller |
| CN214096487U (en) * | 2020-12-16 | 2021-08-31 | 宝能流体机械(玉溪)有限公司 | Fan impeller dynamic balancing machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US8429968B2 (en) * | 2009-10-08 | 2013-04-30 | Moscow Mills, Inc. | Balance test indexing tool for balance-testing a rotor |
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2021
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007183203A (en) * | 2006-01-10 | 2007-07-19 | Ishikawajima Harima Heavy Ind Co Ltd | Rotation balance test apparats and rotation balance correcting method for supercharger with motor |
| CN203432747U (en) * | 2013-08-26 | 2014-02-12 | 上虞通风机有限公司 | Support frame for dynamic balancing test of fan impeller |
| CN205691286U (en) * | 2016-05-18 | 2016-11-16 | 上虞市江南风机有限公司 | A kind of bracing frame and the blower fan dynamic balancing machine with this bracing frame |
| CN208313508U (en) * | 2018-05-28 | 2019-01-01 | 河南森源重工有限公司 | Dynamic balance of impeller experimental rig and its test shaft assembly |
| CN208751788U (en) * | 2018-09-28 | 2019-04-16 | 重庆科奥风机制造有限公司 | A kind of draught fan impeller balancing machine |
| CN112484919A (en) * | 2020-11-26 | 2021-03-12 | 安徽国成顺风风力发电有限公司 | Supporting structure for testing dynamic balance of fan impeller |
| CN214096487U (en) * | 2020-12-16 | 2021-08-31 | 宝能流体机械(玉溪)有限公司 | Fan impeller dynamic balancing machine |
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| CN114354066A (en) | 2022-04-15 |
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