Balancing method of double-cantilever rotor, balance detection device of double-cantilever rotor and storage medium
By first performing dynamic balance correction on the rotor shaft in a double cantilever rotor, and then selecting the calibration surface on both ends of the impeller for dynamic balance correction, the problem of residual imbalance amplification during the dynamic balance correction process of the rotor in the prior art is solved, and the accuracy of dynamic balance and the accuracy of the deduplication scheme are improved.
Patent Information
- Application Number
- CN202411573991.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2025-03-25
AI Technical Summary
In the prior art, during the dynamic balance correction process of the gear-assembled rotor, the residual imbalance measurement of the rotor is amplified by the calibration surface of the impeller, resulting in a low accuracy of the impeller deduplication scheme, which in turn reduces the dynamic balance accuracy of the rotor.
The balance method of double cantilever rotor is adopted. First, the dynamic balance correction of the shaft is performed separately, and then at least two impellers are assembled at both ends of the shaft, and the calibration surface is selected on the impellers at both ends to perform dynamic balance correction of the rotor.
The process balance is carried out simultaneously by both ends of the impeller, the residual imbalance force is avoided to be amplified, the accuracy of the impeller deduplication scheme is improved, and the accuracy of the rotor's dynamic balance is improved, the dynamic balance process is simplified, the number of deduplication debugging is reduced, and the labor intensity is reduced.
Smart Images
Figure CN119688167A_ABST
Abstract
Description
Technical Field
[0001] The embodiments of the present application relate to the technical field of rotor dynamic balancing, and in particular to a balancing method for a double-cantilever rotor and a balancing detection device and storage medium thereof. Background Art
[0002] Equipment that uses gear-assembled rotors, such as gear-assembled superchargers, usually couples the rotors together through large gears. Gear-assembled rotors are widely used in gas supercharging in the fields of petrochemicals due to their high structural efficiency, compact structure, and ease of intercooling. The vibration of gear-assembled rotors when operating conditions change seriously threatens the safe and stable operation of the unit. Each rotor must be dynamically balanced before leaving the factory.
[0003] The rotor includes a rotating shaft and at least two impellers. In the relevant balancing process, the rotating shaft is first dynamically balanced, and then an impeller is mounted on the rotating shaft for dynamic balancing correction. Then, each impeller is individually assembled and finely balanced in turn.
[0004] It should be noted that after dynamic balancing, the shaft will still have a small amount of imbalance. In the relevant impeller fine balancing process, such as Figure 1 As shown in the figure, the unbalanced force generated by the residual unbalance of the shaft is F. Two correction surfaces are selected on the impeller. The forces decomposed from F on the two correction surfaces of the impeller are P1 and P2 respectively. According to the equilibrium relationship between the force and the couple, it can be determined that:
[0005] F = P1 + P2;
[0006] P1×L b =P2×(L a +L b );
[0007] Among them, L a is the distance between the two correction surfaces, L b It is the distance from the correction plane where P1 is located to the plane where F is located.
[0008] Since the impeller is narrow, L a Smaller, L b Much larger than L a. Since P1 and P2 are in opposite directions, P1 and P2 are much larger than F due to the lever action relative to F, resulting in the residual unbalance of the shaft being magnified on the correction surface. At this time, the unbalance removed by the impeller dynamic balancing deweighting scheme includes the amount of residual unbalance magnified on the impeller by the lever action. Therefore, even if the residual unbalance of the rotor is of qualified size, the force reflected on the impeller is also of a large value due to the lever action, and weight treatment is required, resulting in low accuracy of the impeller deweighting scheme, thereby reducing the dynamic balancing accuracy of the rotor. In addition, the fine balancing process of the impeller is time-consuming and labor-intensive, which increases the number of debugging and the labor intensity of the balancing process. Summary of the invention
[0009] The present application aims to solve at least one of the technical problems existing in the prior art or related art.
[0010] To this end, a first aspect of the present invention provides a balancing method for a double-cantilever rotor.
[0011] A second aspect of the present invention provides a balance detection device for a double-cantilever rotor.
[0012] A third aspect of the present invention provides a balance detection device for a double-cantilever rotor.
[0013] A fourth aspect of the present invention provides a readable storage medium.
[0014] In view of this, according to the first aspect of the technical solution of the present application, a balancing method for a double-cantilever rotor is proposed, the rotor comprising a rotating shaft and an impeller, the balancing method for the double-cantilever rotor comprising: performing dynamic balancing correction on the rotating shaft alone; assembling at least two impellers at both ends of the rotating shaft respectively; selecting correction surfaces on the impellers at both ends to perform dynamic balancing correction on the rotor.
[0015] In some technical solutions provided in the present application, optionally, the correction surface is any one of the back side, front side or impeller profile of the impeller.
[0016] In some technical solutions provided in the present application, optionally, before the step of respectively assembling at least two impellers at both ends of the rotating shaft, it also includes: performing dynamic balance correction on the impeller separately by a dynamic balance correction device.
[0017] In some technical solutions provided in the present application, optionally, the dynamic balancing correction device includes a balancing shaft, an adjustment disk and a matching piece, and the steps of performing dynamic balancing correction on the impeller alone through the dynamic balancing correction device specifically include: sleeve the impeller and the adjustment disk on the balancing shaft, the adjustment disk abutting against the end of the impeller; sleeve the matching piece on the balancing shaft and connect it to the adjustment disk, the adjustment disk being located between the impeller and the matching piece; and adjusting the connection preload between the matching piece and the adjustment disk.
[0018] In some technical solutions provided in the present application, optionally, the dynamic balancing correction device also includes an adjusting piece, and the step of adjusting the connection preload force between the mating piece and the adjusting disk specifically includes: passing the adjusting piece through the mating piece and abutting against the adjusting disk; adjusting the position of the adjusting piece and the force of the adjusting piece on the adjusting disk; and stopping adjusting the adjusting piece when the straightness of the balancing shaft is within a preset range.
[0019] In some technical solutions provided in the present application, optionally, the dynamic balancing correction device also includes a first locking piece, and after the step of adjusting the connection preload between the mating piece and the adjusting disk, it also includes: connecting the first locking piece to the balancing shaft; and abutting the first locking piece against the end of the mating piece.
[0020] In some technical solutions provided in the present application, optionally, before the step of performing dynamic balancing correction on the impeller separately, it also includes: processing the impeller by a processing device, the processing device includes a connecting column, a base plate, a gasket, a second locking piece and a machine tool, and the step of processing the impeller by the processing device specifically includes: connecting one end of the connecting column to the base plate; sleeve the gasket and the impeller on the connecting column, the gasket is located between the impeller and the base plate; connect the second locking piece to the other end of the connecting column, the second locking piece abuts against the impeller; install the base plate on the machine tool, and the machine tool processes the end face tooth shape of the impeller.
[0021] The second technical solution of the present application provides a balancing detection device for a double-cantilever rotor, which includes: a debugging module and an assembly module, the debugging module is used to perform dynamic balancing correction on the rotating shaft alone; the assembly module is used to respectively assemble at least two impellers at both ends of the rotating shaft; the debugging module is also used to select correction surfaces on the impellers at both ends to perform dynamic balancing correction on the rotor.
[0022] In the third aspect of the present application, a technical solution provides a balancing detection device for a double-cantilever rotor, and the balancing detection device for a double-cantilever rotor includes: a processor and a memory, the memory stores programs or instructions that can be run on the processor, and when the programs or instructions are executed by the processor, the steps of the balancing method for a double-cantilever rotor provided by any of the above technical solutions are implemented.
[0023] In a fourth aspect of the present application, a technical solution provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the double-cantilever rotor balancing method provided by any of the above technical solutions are implemented.
[0024] Compared with the prior art, the present invention has at least the following beneficial effects:
[0025] By using the impellers at both ends to perform process balancing at the same time, the residual unbalance on the rotor can also be decomposed to the correction surfaces on both sides, but the residual unbalance force is not amplified, avoiding the wrong impeller deweighting solution. In addition, the unbalance of the two impellers themselves will not affect each other, which improves the accuracy of the impeller deweighting solution and thus improves the dynamic balancing accuracy of the rotor. In addition, the dynamic balancing process is simplified, the number of deweighting adjustments is reduced, and the phenomenon of residual unbalance exceeding the standard again after disassembly and assembly is avoided, reducing labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:
[0027] Figure 1 It is a structural schematic diagram of a double cantilever rotor in the background technology;
[0028] Figure 2 A schematic diagram of the structure of a double-cantilever rotor according to an embodiment of the present application;
[0029] Figure 3 A schematic flowchart of steps of a balancing method for a double-cantilever rotor according to an embodiment of the present application;
[0030] Figure 4 A schematic diagram of unbalanced force of a double cantilever rotor according to an embodiment of the present application;
[0031] Figure 5 A schematic diagram of the structure of an impeller of an embodiment provided in the present application;
[0032] Figure 6 One of the structural schematic diagrams of a dynamic balance correction device according to an embodiment of the present application;
[0033] Figure 7 A second structural schematic diagram of a dynamic balance correction device according to an embodiment of the present application;
[0034] Figure 8 A third structural schematic diagram of a dynamic balance correction device according to an embodiment of the present application;
[0035] Fig. 9 One of the structural schematic diagrams of a processing device of an embodiment provided in the present application;
[0036] Fig.10 The second structural schematic diagram of a processing device according to an embodiment of the present application;
[0037] Fig.11 One of the structural block diagrams of a double-cantilever rotor balance detection device according to an embodiment of the present application;
[0038] Fig.12 This is a second structural block diagram of a double-cantilever rotor balance detection device according to an embodiment of the present application.
[0039] in, Figures 1 to 12 The corresponding relationship between the reference numerals and the component names is as follows:
[0040] 10 rotor, 110 rotating shaft, 120 impeller, 121 back side, 122 front side, 123 impeller profile, 124 blade, 210 balancing shaft, 220 adjusting plate, 230 fitting part, 240 adjusting part, 250 first locking part, 260 connecting part, 310 connecting column, 320 bottom plate, 330 gasket, 340 second locking part, 400 balancing detection device for double cantilever rotor, 410 debugging module, 420 assembly module, 500 balancing detection device for double cantilever rotor, 510 memory, 520 processor. DETAILED DESCRIPTION
[0041] In order to better understand the above-mentioned technical scheme, the technical scheme of the embodiments of the present application is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical scheme of the embodiments of the present application, rather than limitations on the technical scheme of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments may be combined with each other.
[0042] A first aspect of the present application provides a balancing method for a double-cantilever rotor, such as Figure 2 , Figure 3 and Figure 4 As shown, the rotor 10 includes a rotating shaft 110 and an impeller 120. The balancing method of the double cantilever rotor includes:
[0043] Step 102: Perform dynamic balance correction on the rotating shaft alone;
[0044] Step 104: Assemble at least two impellers at two ends of the rotating shaft respectively;
[0045] Step 106: Select correction surfaces on the impellers at both ends to perform dynamic balance correction on the rotor.
[0046] In this embodiment, the shaft is first subjected to dynamic balancing correction. A pinion is provided in the middle of the shaft, and the correction surfaces are thrust plates on both sides of the pinion. The shaft is balanced and weighted to reduce the imbalance when the shaft rotates and improve the stability of the shaft rotation. The impellers are then mounted at both ends of the shaft, so that the shaft and the impeller form a double cantilever rotor. Two correction surfaces are selected on the impellers at both ends, and the rotor is subjected to dynamic balancing correction through the correction surfaces at both ends.
[0047] It should be noted that no matter how complex the unbalance distribution on the rotor is, each unbalance force can be calculated according to Figure 4 As shown, it is decomposed into the correction surfaces of the impellers at both ends, namely
[0048]
[0049] in, and is the unbalanced force of the rotor, and To resolve the forces on the left correction surface, and To decompose the force on the right correction surface, l1 is the force between the left correction surface and The distance of the plane, l2 is and The distance between the planes where the right correction surface and The distance to the plane.
[0050] The forces on the two correction surfaces are synthesized to obtain the equivalent unbalanced force in
[0051]
[0052] By adding balancing masses of equal size and opposite direction to the two correction surfaces, the unbalanced force of the rotor can be eliminated.
[0053] From the above calculations, it can be seen that when the impellers at both ends are used for process balancing at the same time, although the residual unbalance on the rotor can also be decomposed to the correction surfaces on both sides, the residual unbalance force is not amplified, avoiding the wrong impeller deweighting solution. In addition, the unbalance of the two impellers themselves will not affect each other, which improves the accuracy of the impeller deweighting solution and thus improves the dynamic balancing accuracy of the rotor. In addition, the dynamic balancing process is simplified, the number of deweighting adjustments is reduced, and the phenomenon of residual unbalance exceeding the standard again after disassembly and assembly is avoided, which reduces labor intensity.
[0054] For example, the double-cantilever rotor can be used in a gear assembly type supercharger, and can also be used in other forms of rotating machinery.
[0055] In some embodiments provided in this application, Figure 2 and Figure 5 As shown, optionally, the correction surface is any one of the back side, the front side or the impeller profile line of the impeller.
[0056] In this embodiment, since the left and right impellers are very similar, the surfaces of the impellers at the same designated position at both ends are selected as correction surfaces to improve the accuracy of dynamic balance correction.
[0057] The impeller 120 is provided with blades 124 and end plates, and a flow channel is formed between adjacent blades 124, and the end plate is located at the end of the blade 124. The impeller 120 includes a back surface 121, a front surface 122 and an impeller profile, the back surface 121 is the end surface of the expansion end of the impeller 120, the front surface 122 is the end surface of the contraction end of the impeller 120 or the side wall of the flow channel, the impeller profile is the outer edge line of the blade 124, and the correction surface is any one of the back surface, the front surface or the impeller profile, so that the correction surface is close to the center of gravity of the impeller, thereby improving the convenience and accuracy of dynamic balance correction.
[0058] Specifically, the impeller can be a semi-open impeller or a closed impeller. The front face of the semi-open impeller is the end face of the impeller contraction end, and the front face of the closed impeller is the wall of the non-pressure surface of the flow channel, that is, the front type ring.
[0059] In some embodiments provided in this application, Figure 5 and Figure 6 As shown, optionally, before the step of assembling at least two impellers at the two ends of the rotating shaft respectively, the method further includes: performing dynamic balance correction on the impellers individually by means of a dynamic balance correction device.
[0060] In this embodiment, before assembling the impeller, the impeller is first subjected to dynamic balance correction by a dynamic balance correction device to improve the rotation smoothness of the impeller, thereby improving the dynamic balance accuracy of the rotor.
[0061] Exemplarily, the impeller correction surface for impeller dynamic balancing correction is arranged on the end plate or the blades.
[0062] In some embodiments provided in this application, Figure 6 , Figure 7 and Figure 8 As shown, optionally, the dynamic balancing correction device includes a balancing shaft 210, an adjustment disk 220 and a fitting 230, and the steps of performing dynamic balancing correction on the impeller alone through the dynamic balancing correction device specifically include: sleeve the impeller and the adjustment disk on the balancing shaft, the adjustment disk abutting against the end of the impeller; sleeve the fitting on the balancing shaft and connect it to the adjustment disk, the adjustment disk being located between the impeller and the fitting; and adjusting the connection preload between the fitting and the adjustment disk.
[0063] In this embodiment, after the impeller is sleeved on the balancing shaft, the balancing shaft is slightly bent due to the effect of the gravity of the impeller. The adjusting disc sleeve and the matching piece are sleeved on the balancing shaft in sequence, so that one end of the adjusting disc sleeve abuts against the end of the impeller and the other end is connected to the matching piece. By adjusting the connection preload between the matching piece and the adjusting disc, specifically, adjusting the position and size of the preload, the matching piece generates a force on the adjusting disc, and the force is transmitted to the balancing shaft through the impeller, so that the balancing shaft balances the bending variable through the force, thereby offsetting the bending caused by the impeller, improving the concentricity of each position of the impeller, and improving the accuracy of the dynamic balancing correction of the impeller.
[0064] In some embodiments provided in this application, Figure 6 , Figure 7 and Figure 8 As shown, optionally, the dynamic balancing correction device also includes an adjusting piece 240, and the steps of adjusting the connection preload force between the mating piece and the adjusting disk specifically include: passing the adjusting piece through the mating piece and abutting against the adjusting disk; adjusting the position of the adjusting piece and the force of the adjusting piece on the adjusting disk; and stopping adjusting the adjusting piece when the straightness of the balancing shaft is within a preset range.
[0065] In this embodiment, an adjustment hole is provided on the adjustment member, and the adjustment member abuts against the end surface of the adjustment disk after passing through the adjustment hole. The position of the adjustment member in the adjustment hole is adjusted, or the adjustment hole is replaced, so as to adjust the position of the adjustment member relative to the adjustment disk, and the position and force of the adjustment member on the adjustment disk improve the accuracy of the adjustment of the balancing shaft. When the straightness of the balancing shaft is within a preset range, specifically, when the straightness of the balancing shaft is less than a qualified threshold, the balancing shaft reaches a qualified state, and the adjustment of the adjustment member is stopped.
[0066] Exemplarily, the adjusting member may be an adjusting bolt or an adjusting screw, and the dynamic balancing correction device further includes a connecting member 260, the mating member is provided with mounting holes and adjustment holes along the circumferential direction, the connecting member 260 passes through the mounting holes to connect the mating member to the adjustment disk, and the mounting holes and the adjustment holes are arranged at intervals.
[0067] In some embodiments provided in this application, Figure 6 and Figure 7 As shown, optionally, the dynamic balancing correction device also includes a first locking piece 250, and after the step of adjusting the connection preload between the mating piece and the adjusting disk, it also includes: connecting the first locking piece to the balancing shaft; and abutting the first locking piece against the end of the mating piece.
[0068] In this embodiment, the first locking piece is sleeved on the balancing shaft and connected to the balancing shaft, and the first locking piece abuts against the end of the matching piece, so that the matching piece is installed on the balancing shaft, thereby improving the stability of the matching piece and further improving the accuracy of the matching piece in regulating the adjustment disk.
[0069] Exemplarily, the first locking member may be a locking nut.
[0070] In some embodiments provided in this application, Fig. 9 and Fig.10 As shown, optionally, before the step of performing dynamic balancing correction on the impeller separately, it also includes: processing the impeller by a processing device, the processing device includes a connecting column 310, a base plate 320, a gasket 330, a second locking piece 340 and a machine tool, and the step of processing the impeller by the processing device specifically includes: connecting one end of the connecting column to the base plate; sleeve the gasket and the impeller on the connecting column, the gasket is located between the impeller and the base plate; connect the second locking piece to the other end of the connecting column, the second locking piece abuts against the impeller; install the base plate on the machine tool, and the machine tool processes the end face tooth shape of the impeller.
[0071] In this embodiment, before the impeller is dynamically balanced, the impeller is first processed by a processing device, one end of the connecting column is connected to the bottom plate, the gasket and the impeller are sequentially sleeved on the connecting column, the gasket is located between the impeller and the bottom plate, the second locking member is connected to the other end of the connecting column, the second locking member presses the impeller and the gasket against the bottom plate, and the bottom plate is installed on the machine tool to process the end face tooth shape of the impeller. This fixing method can improve the stability of the fixed impeller, greatly reduce the deformation of the impeller blades when clamping, improve the processing accuracy of the end face tooth shape, and thus improve the rotation stability of the impeller.
[0072] Exemplarily, the connecting column may be a stud, and the second locking member may be a locking nut.
[0073] In a possible embodiment, the processing device further includes a sleeve, and before the step of connecting the second locking piece to the other end of the connecting column, the step further includes: sleeve-mounting the sleeve on the balancing shaft and connecting it to the impeller.
[0074] In this embodiment, the sleeve is sleeved on the end of the impeller, and the second locking piece abuts against the end of the sleeve, so that the second locking piece is connected to the impeller through the sleeve, which facilitates the installation of the second locking piece in a small space and improves the flexibility of the installation of the second locking piece.
[0075] In a possible embodiment, the processing device includes a balancing shaft 210, an adjustment disk 220 and a matching piece 230, and the steps of processing the impeller by the processing device specifically include: putting the impeller and the adjustment disk on the balancing shaft, and the adjustment disk abuts against the end of the impeller; putting the matching piece on the balancing shaft and connecting it to the adjustment disk, and the adjustment disk is located between the impeller and the matching piece; adjusting the connection preload between the matching piece and the adjustment disk.
[0076] In a second aspect of the present application, an embodiment provides a double-cantilever rotor balance detection device 400, such as Fig.11As shown, the balancing detection device 400 for the double-cantilever rotor includes: a debugging module 410 and an assembly module 420. The debugging module 410 is used to perform dynamic balancing correction on the rotating shaft 110 alone; the assembly module 420 is used to respectively assemble at least two impellers 120 at both ends of the rotating shaft 110; the debugging module 410 is also used to select correction surfaces 122 on the impellers 120 at both ends to perform dynamic balancing correction on the rotor 10.
[0077] In this embodiment, the process balancing is performed simultaneously with the impellers 120 at both ends. Although the residual unbalance on the rotor 10 can also be decomposed to the correction surfaces on both sides, the residual unbalance force is not amplified, thereby avoiding obtaining an erroneous deweighting solution for the impeller 120. In addition, the unbalance of the two impellers 120 themselves will not affect each other, thereby improving the accuracy of the deweighting solution for the impeller 120, and further improving the dynamic balancing accuracy of the rotor 10. In addition, the dynamic balancing process is simplified, the number of deweighting adjustments is reduced, and the phenomenon of the residual unbalance exceeding the standard again after disassembly and assembly is avoided, thereby reducing the labor intensity.
[0078] In a third aspect of the present application, an embodiment provides a double-cantilever rotor balance detection device 500, such as Fig.12 As shown, the balancing detection device 500 for a double-cantilever rotor includes: a processor 520 and a memory 510, wherein the memory 510 stores programs or instructions that can be run on the processor 520, and when the programs or instructions are executed by the processor 520, the steps of the double-cantilever rotor balancing method provided in any of the above embodiments are implemented.
[0079] It should be noted that the balancing detection device 500 for a double cantilever rotor implements the steps of the balancing method for a double cantilever rotor provided in any of the above-mentioned embodiments when executed, and thus has all the beneficial technical effects of the above-mentioned balancing method for a double cantilever rotor. To avoid repetition, they are not described here.
[0080] In a fourth aspect of the present application, an embodiment provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the double-cantilever rotor balancing method provided in any of the above embodiments are implemented.
[0081] It should be noted that the readable storage medium implements the steps of the double-cantilever rotor balancing method provided by any of the above embodiments when executed, and thus has all the beneficial technical effects of the above-mentioned double-cantilever rotor balancing method. To avoid repetition, they are not described here.
[0082] In a possible embodiment, the impeller is mounted on the tooling shaft to perform preliminary balancing on the impeller, and the calibration surfaces are the planes on both sides of the impeller flow channel. Without mounting the impeller, the shaft is balanced, and the calibration surfaces are the thrust plates on both sides of the pinion gear. After the shaft is balanced, two impellers are mounted at the same time, and the two impellers are finely balanced at the same time, and the calibration surfaces are the back or front sides of the two impellers.
[0083] During the fine balancing of the impellers, two impellers are simultaneously mounted on the balanced rotor for fine balancing, rather than mounting only one impeller on the rotor for fine balancing. Positions on both impellers are selected as the balancing correction surfaces, rather than using the planes on both sides of a single impeller flow channel as the correction surfaces. When selecting the correction surfaces on the two impellers, the correction surfaces can be the back of the two impellers, or the front profile ring or impeller profile line. However, the two planes should belong to the same type of position. For example, one impeller cannot be selected on the back and the other impeller cannot be selected on the front profile ring.
[0084] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0085] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.
[0086] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0087] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A balancing method for a double cantilever rotor, characterized in that: The rotor comprises a rotating shaft and an impeller, and the balancing method of the double-cantilever rotor comprises: Performing dynamic balancing correction on the rotating shaft separately; Assembling at least two impellers at two ends of the rotating shaft respectively; Correction surfaces are selected on the impellers at both ends to perform dynamic balance correction on the rotor.
2. The balancing method for a double cantilever rotor according to claim 1, characterized in that: The correction surface is any one of the back surface, the front surface or the impeller profile of the impeller.
3. The balancing method of a double cantilever rotor according to claim 1, characterized in that: Before the step of assembling at least two impellers at both ends of the rotating shaft respectively, the method further includes: The impeller is individually corrected for dynamic balance by a dynamic balance correction device.
4. The balancing method for a double cantilever rotor according to claim 3, characterized in that: The dynamic balancing correction device includes a balancing shaft, an adjustment disk and a matching piece. The step of performing dynamic balancing correction on the impeller separately by the dynamic balancing correction device specifically includes: The impeller and the adjustment disk are sleeved on the balancing shaft, and the adjustment disk is in contact with the end of the impeller; The matching piece is sleeved on the balancing shaft and connected to the adjusting disk, wherein the adjusting disk is located between the impeller and the matching piece; Adjust the connection preload force between the matching piece and the adjusting disk.
5. The balancing method for a double cantilever rotor according to claim 4, characterized in that: The dynamic balance correction device further includes an adjusting member, and the step of adjusting the connection preload force between the matching member and the adjusting disk specifically includes: Pass the adjusting member through the matching member and abut against the adjusting disk; Adjusting the position of the adjusting member and the force of the adjusting member on the adjusting disk; When the straightness of the balancing shaft is within a preset range, the adjustment of the adjusting member is stopped.
6. The balancing method of a double cantilever rotor according to claim 4, characterized in that: The dynamic balance correction device further includes a first locking member, and after the step of adjusting the connection preload between the matching member and the adjustment disk, further includes: connecting the first locking member to the balancing shaft; The first locking member is brought into contact with the end of the mating member.
7. The balancing method of a double cantilever rotor according to claim 3, characterized in that: Before the step of separately performing dynamic balancing correction on the impeller, the method further includes: processing the impeller by a processing device, the processing device including a connecting column, a bottom plate, a gasket, a second locking member and a machine tool, and the step of processing the impeller by the processing device specifically includes: Connecting one end of the connecting column to the bottom plate; The gasket and the impeller are sleeved on the connecting column, and the gasket is located between the impeller and the bottom plate; Connecting the second locking piece to the other end of the connecting column, wherein the second locking piece abuts against the impeller; The base plate is mounted on the machine tool, and the machine tool processes the end face tooth profile of the impeller.
8. A double-cantilever rotor balance detection device, characterized in that: The rotor comprises a rotating shaft and an impeller, and the balance detection device of the double-cantilever rotor comprises: A debugging module, used for performing dynamic balancing correction on the rotating shaft alone; An assembly module, used for assembling at least two impellers at two ends of the rotating shaft respectively; The debugging module is also used to select correction surfaces on the impellers at both ends to perform dynamic balance correction on the rotor.
9. A double-cantilever rotor balance detection device, characterized in that: include: A processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the balancing method for a double-cantilever rotor according to any one of claims 1 to 7 are implemented.
10. A readable storage medium, characterized in that: The readable storage medium stores a program or an instruction, and when the program or the instruction is executed by the processor, the steps of the balancing method of the double-cantilever rotor according to any one of claims 1 to 7 are implemented.