Impeller dynamic balancing device

Abstract

The impeller dynamic balancing device comprises an impeller, a rotating rod, a coupler and a driving shaft, the impeller comprises a wheel disc and blades, the blades are arranged on the wheel disc, a plurality of positioning rods are arranged on the side, close to the coupler, of the wheel disc in a threaded mode, and the positioning rods are sleeved with limiting plates in a sliding mode. A limiting structure is arranged between the side, close to the wheel disc, of the limiting plate and the positioning rod, a first nut is arranged on the positioning rod on the outer side of the limiting plate in a threaded mode, the coupler is sleeved with a fixing sleeve, a locking edge is arranged on the fixing sleeve, the tail end of the positioning rod movably extends to the outer side of the locking edge, and a second nut and a third nut are arranged at the tail end of the positioning rod in a threaded mode. According to the impeller, the positioning rod can be detachably installed, the dynamic balance of the impeller is improved, and meanwhile, maintenance and replacement of independent components are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to impeller dynamic balance technical field more specifically, it relates to a kind of impeller dynamic balancing device. BACKGROUND

[0002] Impeller belongs to the core part of supercharger, when working, its rotating speed will reach tens of thousands of revolutions, to ensure stable operation in work, increase the balance of impeller when using, to ensure its rotation stability.

[0003] The Chinese patent file with the publication number CN215979502U provides an impeller dynamic balancing device, which improves the stability of the impeller during rotation by setting the driving shaft 100, the shaft coupling 130, the connecting block 110, the fixed block 120, the rotating rod 140, the impeller 200, and the positioning rod 160, preventing the impeller 200 from shifting due to vibration during operation.

[0004] However, in the above-mentioned scheme, the positioning rod 160 is installed and fixed in the fixed groove 210 on the impeller 200 by welding, and the other end of the positioning rod 160 is fixed on the corresponding fixed block 120, which makes it inconvenient to replace the damaged parts locally and requires the whole to be disassembled. UTILITY MODEL CONTENTS

[0005] (I) Technical problem solved

[0006] To solve the problems in the prior art, the utility model provides an impeller dynamic balancing device to solve the technical problem of the prior art mentioned in the background art, which is fixed by welding and is inconvenient to repair or replace individual parts during maintenance.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions:

[0009] An impeller dynamic balancing device includes an impeller, a rotating rod, a shaft coupling, and a driving shaft. The transmission structure relationship between the impeller, the rotating rod, the shaft coupling, and the driving shaft is known in the art, and the utility model does not repeat.

[0010] The impeller comprises a disc and blades, the blades are arranged on the disc, a plurality of positioning rods are arranged on the side of the disc close to the shaft coupling in a threaded mode, a limiting plate is sleeved on the positioning rods in a sliding mode, a limiting structure is arranged between the side of the limiting plate close to the disc and the positioning rods, a first nut is arranged on the positioning rods outside the limiting plate in a threaded mode, a fixing sleeve is sleeved on the shaft coupling, a locking flange is arranged on the fixing sleeve, the tail end of the positioning rods extends to the outside of the locking flange in a movable mode, a second nut and a third nut are arranged on the tail end of the positioning rods in a threaded mode, and the second nut and the third nut are respectively located on the two sides of the locking flange.

[0011] The utility model further sets up, the side wall of fixed sleeve is provided with locking bolt in a threaded mode, the inner end part of locking bolt is pressed on the outside wall of shaft coupling, after installing fixed sleeve to appropriate position, tightens locking bolt, can improve the installation stability of fixed sleeve.

[0012] The utility model further sets up, the outside of shaft coupling is provided with limiting convex flange, and the limiting installation of fixed sleeve on shaft coupling is realized through limiting convex flange, the position limitation of fixed sleeve during installation can be realized through limiting convex flange, thereby improving the installation stability of fixed sleeve.

[0013] The utility model further sets up, the inner wall of fixed sleeve is provided with limiting sliding slot, the outside wall of shaft coupling is provided with limiting sliding strip, the limiting sliding slot and limiting sliding strip are in sliding fit, the installation limiting of fixed sleeve on the outside of shaft coupling can be realized through the cooperation of limiting sliding slot and limiting sliding strip, in this way, the rotation of fixed sleeve relative to shaft coupling can be limited, the installation stability of positioning rod is improved, thereby improving the dynamic balance effect of impeller.

[0014] The utility model further sets up, the disc is provided with fixed groove, the one end of positioning rod and disc is provided with first threaded section, and the detachable connection between positioning rod and disc is realized through the cooperation of first threaded end and fixed groove.

[0015] The utility model further sets up, the limiting structure includes limiting block, the limiting block is non -circular, and is integrally arranged on the positioning rod outside the disc, the limiting slot is formed in the limiting plate, the limiting block and limiting slot are limited and clamped, the rotation limiting of limiting plate to positioning rod is realized through the limiting clamping of limiting block and limiting slot, and the connection stability between positioning rod and disc is improved.

[0016] The utility model further sets up, set up second threaded section and third threaded section on the positioning rod, the first nut and second threaded section are screwed together, the second nut and third nut cooperate with third threaded section, and the inner diameter of first nut is bigger than the inner diameter of second nut and third nut, when installing, first, the positioning rod is installed on the wheel disc through the cooperation of first threaded end and fixed groove, then, the limit board is set on the corresponding positioning rod, then, the first nut is screwed on the second threaded section, the locking and fixing of limit board on the outside of wheel disc are realized, and the rotation of positioning rod is limited through the limit board, so that mutual restriction is realized, the installation stability of positioning rod is improved, then, the positioning rod is passed through the locking along again, and the locking and fixing are realized through the cooperation of second nut and third nut.

[0017] The utility model further sets up, set up second threaded section and third threaded section on the positioning rod, the first nut and second threaded section are screwed together, the second nut and third nut cooperate with third threaded section, and the inner diameter of first nut is bigger than the inner diameter of second nut and third nut, when installing, first, the positioning rod is installed on the wheel disc through the cooperation of first threaded end and fixed groove, then, the limit board is set on the corresponding positioning rod, then, the first nut is screwed on the second threaded section, the locking and fixing of limit board on the outside of wheel disc are realized, and the rotation of positioning rod is limited through the limit board, so that mutual restriction is realized, the installation stability of positioning rod is improved, then, the positioning rod is passed through the locking along again, and the locking and fixing are realized through the cooperation of second nut and third nut.

[0018] (Three) beneficial effects

[0019] Compared with the prior art, the utility model provides a kind of impeller dynamic balancing device, with following beneficial effects:

[0020] 1, the one end of the positioning rod connecting wheel disc is screwed by the cooperation of first threaded section and fixed groove in the utility model, so that the detachable connection between positioning rod and wheel piece can be realized, the replacement of individual accessory is facilitated when subsequent maintenance, at the same time, limit board is cooperatively arranged, so that limit board and positioning rod are limited and clamped by the cooperation of limiting block and limiting groove, and the outside of limit board is locked and fixed by first nut, so that the rotation of limit board relative to wheel piece can be limited by the cooperation of multiple positioning rods, and the rotation of positioning rod can be limited by the cooperation of limiting block and limiting groove, so that stable connection between positioning rod and wheel disc can be realized, and the disassembly between positioning rod and wheel disc is facilitated.

[0021] 2, the utility model is cooperatively arranged on coupling with fixed sleeve, so that the tail end of positioning rod is passed through the locking along on positioning sleeve, and fixed sleeve is installed and limited by limiting convex along, and the connection and fixing between positioning column and locking along are realized by the cooperation of second nut and third nut, so that the connection and fixing between the wheel disc of impeller and fixed sleeve can be realized by positioning column, and the connection stability between wheel disc and coupling is improved by the connection of fixed sleeve, so that the installation stability of impeller when rotating is improved, the dynamic balance performance of impeller when using is improved, and the detachable connection between positioning rod and fixed sleeve can be realized by the cooperation of second nut, third nut and locking along.

[0022] 3. The utility model discloses a limiting protruding edge for fixing sleeve installation limit is arranged on the shaft coupling, and the locking bolt is arranged on the lateral wall of the fixed sleeve simultaneously, so that after the fixed sleeve is installed, the locking bolt can be screwed tightly, so that the installation stability of the fixed sleeve on the shaft coupling can be improved, thereby improving the connecting stability between the positioning rod and the wheel disc. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is whole structure schematic diagram of a kind of impeller dynamic balancing device in the utility model Figure 1 ;

[0024] Figure 2 It is whole structure schematic diagram of a kind of impeller dynamic balancing device in the utility model Figure 2 ;

[0025] Figure 3 It is the connection structure exploded schematic view between positioning rod and wheel disc in the utility model;

[0026] Figure 4 It is the local connection structure cross-sectional view between positioning rod and wheel disc in the utility model;

[0027] Figure 5 It is the connection structure schematic diagram between positioning rod and fixed sleeve and locking along in the utility model.

[0028] In the drawing: 1, impeller;2, rotating rod;3, shaft coupling;4, driving shaft;5, wheel disc;6, blade;7, positioning rod;8, limiting plate;9, first nut;10, fixed sleeve;11, locking along;12, second nut;13, third nut;14, locking bolt;15, limiting protruding edge;16, limiting sliding slot;17, limiting slide;18, fixed groove;19, first threaded section;20, limiting block;21, limiting slot;22, second threaded section;23, third threaded section;24, through groove. DETAILED DESCRIPTION

[0029] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0031] In the utility model, in the case where no opposite statement is made, the orientation such as "upper, lower" is usually for the direction shown in the drawing, or for the vertical, perpendicular or gravity direction; similarly, for the convenience of understanding and description, "left, right" is usually for the left and right shown in the drawing; "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the utility model.

[0032] Please refer to Figures 1-5 A kind of impeller dynamic balancing device, including impeller 1, rotating rod 2, shaft coupling 3 and drive shaft 4, impeller 1 includes wheel disc 5 and blade 6, blade 6 is arranged on wheel disc 5, wheel disc 5 is screw set with multiple positioning rods 7 on the side close to shaft coupling 3, limiting plate 8 is slidably sleeved on positioning rod 7, limiting structure is arranged between the side of limiting plate 8 close to wheel disc 5 and positioning rod 7, first nut 9 is screw set on the positioning rod 7 of the outer side of limiting plate 8, fixed sleeve 10 is sleeved on shaft coupling 3, locking edge 11 is arranged on fixed sleeve 10, tail end of positioning rod 7 movably extends to the outer side of locking edge 11, second nut 12 and third nut 13 are screw set on the tail end of positioning rod 7, and second nut 12 and third nut 13 are located on the two sides of locking edge 11 respectively.

[0033] Please refer to Figures 1-5 As an embodiment of fixed sleeve 10: locking bolt 14 is screw set on the side wall of fixed sleeve 10, the inner end of locking bolt 14 is pressed on the outer side wall of shaft coupling 3, after installing fixed sleeve 10 to appropriate position, locking bolt 14 can be tightly screwed, and the installation stability of fixed sleeve 10 can be improved.

[0034] Please refer to Figures 1-5 As an embodiment of shaft coupling 3: limiting convex edge 15 is arranged on the outer side of shaft coupling 3, and limiting convex edge 15 is used to limit the installation of fixed sleeve 10 on shaft coupling 3, the position of fixed sleeve 10 during installation can be limited by limiting convex edge 15, so that the installation stability of fixed sleeve 10 is improved.

[0035] Please refer to Figures 1-5 As an embodiment of fixed sleeve 10: limiting sliding groove 16 is arranged on the inner wall of fixed sleeve 10, limiting sliding strip 17 is arranged on the outer side wall of shaft coupling 3, limiting sliding groove 16 and limiting sliding strip 17 are slidably matched, the installation of fixed sleeve 10 on the outer side of shaft coupling 3 can be limited by the cooperation of limiting sliding groove 16 and limiting sliding strip 17, so that the rotation of fixed sleeve 10 relative to shaft coupling 3 can be limited, the installation stability of positioning rod 7 is improved, and the dynamic balancing effect of impeller 1 is improved.

[0036] Please refer to Figures 1-5As an embodiment of the wheel disc 5: the wheel disc 5 is provided with a fixing groove 18, and the first threaded end of the positioning rod 7 is provided with a first threaded section 19, and the detachable connection between the positioning rod 7 and the wheel disc 5 is realized through the cooperation of the first threaded end and the fixing groove 18.

[0037] As an embodiment of the wheel disc 5: the wheel disc 5 is provided with a fixing groove 18, and the first threaded end of the positioning rod 7 is provided with a first threaded section 19, and the detachable connection between the positioning rod 7 and the wheel disc 5 is realized through the cooperation of the first threaded end and the fixing groove 18. Figures 1-5 As an embodiment of the limiting structure: the limiting structure includes a limiting block 20, the limiting block 20 is non-circular and is integrally arranged on the positioning rod 7 outside the wheel disc 5, and the limiting plate 8 is provided with a limiting groove 21, the limiting block 20 and the limiting groove 21 are limitedly engaged, the rotation of the positioning rod 7 is limited by the limiting block 20 and the limiting groove 21, and the connection stability between the positioning rod 7 and the wheel disc 5 is improved.

[0038] As an embodiment of the wheel disc 5: the wheel disc 5 is provided with a fixing groove 18, and the first threaded end of the positioning rod 7 is provided with a first threaded section 19, and the detachable connection between the positioning rod 7 and the wheel disc 5 is realized through the cooperation of the first threaded end and the fixing groove 18. Figures 1-5 As an embodiment of the positioning rod 7: the positioning rod 7 is provided with a second threaded section 22 and a third threaded section 23, the first nut 9 is threadedly connected with the second threaded section 22, the second nut 12 and the third nut 13 are connected with the third threaded section 23, the inner diameter of the first nut 9 is larger than the inner diameters of the second nut 12 and the third nut 13, in the installation process, the positioning rod 7 is first installed on the wheel disc 5 through the cooperation of the first threaded end and the fixing groove 18, then the limiting plate 8 is sleeved on the corresponding positioning rod 7, then the first nut 9 is screwed on the second threaded section 22, the limiting plate 8 is locked and fixed outside the wheel disc 5, the rotation of the positioning rod 7 is limited by the limiting plate 8, the mutual limitation is realized, the installation stability of the positioning rod 7 is improved, and then the positioning rod 7 passes through the locking edge 11 and is locked and fixed through the cooperation of the second nut 12 and the third nut 13.

[0039] As an embodiment of the wheel disc 5: the wheel disc 5 is provided with a fixing groove 18, and the first threaded end of the positioning rod 7 is provided with a first threaded section 19, and the detachable connection between the positioning rod 7 and the wheel disc 5 is realized through the cooperation of the first threaded end and the fixing groove 18. Figures 1-5 As an embodiment of the limiting plate 8: the limiting plate 8 and the locking edge 11 are both provided with a through groove 24 matched with the positioning rod 7, and in the installation process, the positioning rod 7 is connected with the limiting plate 8 and the locking edge 11 through the through groove 24.

[0040] In summary:

[0041] The utility model discloses a positioning rod 7 is connected the one end of wheel disc 5 through the cooperation of first threaded section 19 and fixed groove 18 spiral screwing, like this, can realize the detachable connection between positioning rod 7 and the wheel piece, and the replacement of individual accessory is convenient when subsequent overhaul, and, cooperation sets up the limiting plate 8, with the cooperation of limiting block 20 and limiting groove 21 between limiting plate 8 and positioning rod 7 is limited and clamped, and the outside of limiting plate 8 is locked fixed through first nut 9, like this, can limit the rotation of limiting plate 8 relative to the wheel piece through the cooperation of multiple positioning rod 7, and also can limit the rotation of positioning rod 7 through the cooperation of limiting block 20 and limiting groove 21, to realize the stable connection between positioning rod 7 and wheel disc 5, and simultaneously, the disassembly between positioning rod 7 and wheel disc 5 is convenient;

[0042] The utility model discloses the cooperation of fixed sleeve 10 is set up on shaft coupling 3, with the tail end of positioning rod 7 is passed along 11 on the locking of positioning sleeve, and through the installation limiting of fixed sleeve 10 of limiting convex edge 15, and, through the cooperation of second nut 12 and third nut 13, realize the connecting fixed between positioning column and locking along 11, to can realize the connecting fixed between wheel disc 5 and fixed sleeve 10 of impeller 1 through positioning column, and improve the connecting stability between wheel disc 5 and shaft coupling 3 through the connection of fixed sleeve 10, to improve the installation stability of impeller 1 when rotating, improve the dynamic balance performance of impeller 1 when using, and, through the cooperation of second nut 12, third nut 13 and locking along 11, can realize the detachable connection between positioning rod 7 and fixed sleeve 10;

[0043] The utility model discloses the limiting convex edge 15 for fixed sleeve 10 installation limit is seted up on shaft coupling 3, and simultaneously, locking bolt 14 is seted up on the lateral wall of fixed sleeve 10 with thread, like this, after installing fixed sleeve 10, can tighten locking bolt 14, like this, can improve the installation stability of fixed sleeve 10 on shaft coupling 3, to improve the connecting stability between positioning rod 7 and wheel disc 5.

[0044] All the schemes mentioned above involve the connection between two components, which can be selected according to actual conditions, such as welding, bolt and nut cooperation connection, bolt or screw connection, or other known connection modes, which will not be described one by one. In the above, when the fixed connection is involved, welding is preferred. Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and deformations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

[0045] In all the above-mentioned solutions, the electrical components are controlled by the controller unless otherwise specified. Since the controller is a commonly used device, its control principle and circuit connection are known and mature technologies, and the specific circuit structure is not described here.

[0046] In all the above-mentioned solutions, the motor can be matched with a speed reducer if necessary. The connection structure and working principle between the motor and the speed reducer are known technologies, and the utility model does not need to be described in detail.

[0047] In all the above-mentioned solutions, the connection between the solar panel and the battery can be matched with an inverter, a battery charging controller, a cable, a fuse, a support and other necessary accessories. The control principle and circuit connection are known and mature technologies, and the specific circuit structure is not described here.

Claims

1. A device for dynamic balancing of an impeller, comprising an impeller (1), a rotating shaft (2), a coupling (3) and a drive shaft (4), said impeller (1) comprising a disc (5) and blades (6) arranged on the disc (5), characterized in that: The wheel disc (5) is provided with a plurality of positioning rods (7) on the side close to the shaft coupling (3), a limiting plate (8) is sleeved on the positioning rod (7), a limiting structure is arranged between the limiting plate (8) and the positioning rod (7) on the side close to the wheel disc (5), a first nut (9) is arranged on the positioning rod (7) on the outside of the limiting plate (8), a fixing sleeve (10) is sleeved on the shaft coupling (3), a locking edge (11) is arranged on the fixing sleeve (10), the tail end of the positioning rod (7) extends to the outside of the locking edge (11), a second nut (12) and a third nut (13) are arranged on the tail end of the positioning rod (7) in a threaded manner, and the second nut (12) and the third nut (13) are respectively located on the two sides of the locking edge (11).

2. A device for dynamic balancing of an impeller according to claim 1, characterized in that The fixing sleeve (10) is provided with a locking bolt (14) on the side wall in a threaded manner, and the inner end of the locking bolt (14) is pressed against the outer side wall of the shaft coupling (3).

3. A device for dynamic balancing of an impeller according to claim 2, characterized in that: The outer side of the shaft coupling (3) is provided with a limiting convex edge (15), and the limiting convex edge (15) is used for limiting installation of the fixing sleeve (10) on the shaft coupling (3).

4. A device for dynamic balancing of an impeller according to claim 1, characterized in that: The inner wall of the fixing sleeve (10) is provided with a limiting sliding groove (16), the outer side wall of the shaft coupling (3) is provided with a limiting sliding strip (17), and the limiting sliding groove (16) and the limiting sliding strip (17) are in sliding fit.

5. A device for dynamic balancing of an impeller according to claim 1, characterized in that: The wheel disc (5) is provided with a fixing groove (18), and the end of the positioning rod (7) connected with the wheel disc (5) is provided with a first threaded section (19).

6. A device for dynamic balancing of an impeller according to claim 5, characterized in that The limiting structure comprises a limiting block (20), the limiting block (20) is non-circular, and is integrally arranged on the positioning rod (7) on the outside of the wheel disc (5), the limiting plate (8) is provided with a limiting groove (21), and the limiting block (20) and the limiting groove (21) are limitedly clamped.

7. A device for dynamic balancing of an impeller according to claim 1, characterized in that: The positioning rod (7) is provided with a second threaded section (22) and a third threaded section (23), the first nut (9) and the second threaded section (22) are in threaded fit, the second nut (12) and the third nut (13) are in fit with the third threaded section (23), and the inner diameter of the first nut (9) is greater than the inner diameters of the second nut (12) and the third nut (13).

8. A device for dynamic balancing of an impeller according to claim 1, characterized in that: The limiting plate (8) and the locking edge (11) are provided with a through groove (24) matched with the positioning rod (7).

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