CN111044223A - Dynamic balancing device for disc rotor of turbine engine - Google Patents
Dynamic balancing device for disc rotor of turbine engine Download PDFInfo
- Publication number
- CN111044223A CN111044223A CN201911159708.0A CN201911159708A CN111044223A CN 111044223 A CN111044223 A CN 111044223A CN 201911159708 A CN201911159708 A CN 201911159708A CN 111044223 A CN111044223 A CN 111044223A
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- China
- Prior art keywords
- tool shaft
- section
- shaft section
- dynamic balancing
- rotor
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/30—Compensating unbalance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/02—Details of balancing machines or devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/14—Determining unbalance
- G01M1/16—Determining unbalance by oscillating or rotating the body to be tested
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
Abstract
The invention relates to a dynamic balancing device for a disc rotor of a turbine engine, and belongs to the field of engineering machinery. The device comprises a base, a tool shaft and an expansion sleeve, wherein the tool shaft comprises a first tool shaft section, a conical table section, a positioning table section, a second tool shaft section and a third tool shaft section which are sequentially connected, the expansion sleeve is of a cylindrical structure, the inner profile of the expansion sleeve is matched with the outer profile of the conical table section, and a through gap is formed in the expansion sleeve barrel along the axis direction; the upper end surface of the expansion sleeve and the upper end surface of the conical table section are provided with matched threaded holes; the center of the base is provided with a sleeve, the second tool shaft section and the third tool shaft section are located in the sleeve, and the upper end face of the sleeve is in contact with the lower end face of the positioning table section. The dynamic balance device adopts an expansion sleeve type structure, and the disc rotor and the dynamic balance device are quickly assembled and disassembled.
Description
Technical Field
The invention relates to a dynamic balancing device for a disc rotor of a turbine engine, and belongs to the field of engineering machinery.
Background
The disc rotor is a common shaftless rotor structure of a turbine engine, and the dynamic balance of the disc rotor is a key process in the production process. In order to ensure the vibration performance of the turbine engine, the dynamic balance precision requirements of the disc rotors are high, the balance precision requirements cannot be ensured by adopting a vertical dynamic balancing machine, and the dynamic balance needs to be carried out by adopting a horizontal dynamic balancing machine. The traditional dynamic balance method of the disk rotor of the turbine engine is to thermally assemble the disk rotor on a process shaft (tool) and then support the disk rotor and the process shaft on a horizontal dynamic balancing machine for dynamic balance. The process shaft and the disc rotor are in interference fit, a hot assembling and hot disassembling process method is needed, heating and heat preservation need about 4 hours each time, balancing efficiency is low, the number of the process shafts is large in order to balance a plurality of parts at the same time, tooling production and management cost is high, and batch production of the disc parts of the turbine engine is not facilitated.
Disclosure of Invention
In view of the above, the present invention aims to provide an efficient dynamic balancing device for a disk rotor of a turbine engine, so as to solve the problems of low balancing efficiency and high tooling production and management costs when the disk rotor is dynamically balanced by a horizontal dynamic balancing machine using a process shaft, and thus, the requirements of batch production of the turbine engine are not met.
In order to achieve the above object, the technical solution of the present invention is as follows.
A dynamic balance device for a disc rotor of a turbine engine comprises a base, a tooling shaft and an expansion sleeve, wherein the tooling shaft comprises a first tooling shaft section, a conical table section, a positioning table section, a second tooling shaft section and a third tooling shaft section which are sequentially connected, the conical table section is positioned at the center of the positioning table section, the large end face of the conical table section is positioned on the upper end face of the positioning table section, the expansion sleeve is of a cylindrical structure, the inner profile of the expansion sleeve is matched with the outer profile of the conical table section, and a through gap is formed in the expansion sleeve barrel body along the axis direction; the upper end surface of the expansion sleeve and the upper end surface of the conical table section are provided with matched threaded holes; a sleeve is arranged at the center of the base, the second tool shaft section and the third tool shaft section are positioned in the sleeve, and the upper end surface of the sleeve is in contact with the lower end surface of the positioning table section; the first tool shaft section, the conical table section, the second tool shaft section and the third tool shaft section are coaxial, the diameters of the first tool shaft section and the third tool shaft section are the same, and the diameter of the second tool shaft section is larger than that of the third tool shaft section; when the tool is used, the shaft necks of the first tool shaft section and the third tool shaft section are matched with a supporting roller of a dynamic balancing machine, and the second tool shaft section is used for mounting a driving belt of the dynamic balancing machine; the outer diameter of the expansion sleeve is smaller than the inner diameter of the disc rotor.
Furthermore, a tip hole is machined in a non-connecting section of the first tool shaft section and the third tool shaft section; and the coaxiality of the first tool shaft section, the conical table section, the second tool shaft section and the third tool shaft section is less than phi 0.01mm by taking the center hole as a reference.
Furthermore, the difference between the diameters of the first tool shaft section and the third tool shaft section and the diameter of the support roller of the dynamic balancing machine is more than 10%.
Further, the diameter of the second tool shaft is different from that of a belt driving wheel of the dynamic balancing machine by more than 10%.
Furthermore, the perpendicularity of the upper end face of the positioning seat is smaller than 0.01 mm.
Furthermore, the cone angle of the conical table section ensures that the interference magnitude between the disc rotor and the tool shaft is not more than 0.02 mm.
Furthermore, the outer diameter of the expansion sleeve is 0.01-0.05mm smaller than the inner diameter of the disc rotor.
Furthermore, the width of the gap on the expansion sleeve is 0.5-1 mm.
Further, the tool shaft is formed by machining in an integrated machine.
When the tool is used, the second tool shaft section and the third tool shaft section are sleeved in the sleeve on the base, the positioning seat is supported on the sleeve, and the expansion sleeve is arranged on the first tool shaft section; then the disc rotor is arranged on the expansion sleeve, the end face of the disc rotor is close to the upper end face of the positioning platform section, and the outer circle of the expansion sleeve is expanded by arranging and screwing down the screw on the upper end face of the expansion sleeve, so that the disc rotor and the expansion sleeve are expanded, and the radial interference magnitude required by the disc rotor and the tool shaft is ensured; supporting a dynamic balance device provided with a disc rotor on the dynamic balance, detecting the radial and end face runout amount of the disc rotor, and ensuring that the disc rotor is installed right and is coaxial with a tool; starting the dynamic balancing machine, and eliminating the influence of the unbalance of the tool on a balancing result by adopting a 180-degree turnover compensation method; carrying out dynamic balance detection and correction; and after the dynamic balance result meets the requirement, taking down the dynamic balance device and the disc rotor from the dynamic balance machine, loosening the screw and taking down the disc rotor from the dynamic balance device.
Advantageous effects
The dynamic balance device is reasonable and ingenious in structural design, and the expansion sleeve type structure is adopted, so that the disc rotor and the dynamic balance device can be quickly assembled and disassembled.
By adopting the dynamic balance device, the dynamic balance efficiency of the disc rotor can be improved by at least 1 time, and the production and management cost of the tool is reduced.
The invention better meets the dynamic balance batch production requirement of the disk rotors of the turbine engine, has stronger universality and technical popularization, and can also be applied to the dynamic balance production process of similar rotor parts. The expansion sleeve is matched with the tool shaft through a conical surface, the conical surface angle of the expansion sleeve and the tool shaft is reasonably designed according to the requirement of the tolerance of the inner diameter of the disc rotor, and the interference magnitude of the rotor and the tool shaft is not more than 0.02 mm; after the dynamic balance device is produced, dynamic balance correction is required to ensure that the residual unbalance amount of the dynamic balance device is not more than one third of the residual unbalance amount of the disc rotor; and each screw and each mounting hole are respectively marked, and the screws are mounted according to the marks when in use, so that the measurement error is reduced.
Drawings
FIGS. 1-2 are schematic structural views of the apparatus of the present invention;
FIG. 3 is a diagram illustrating the state of use of the apparatus according to the present invention;
the tool comprises a base, a positioning table section, a first tool shaft section, a second tool shaft section, a third tool shaft section, a conical table section and an expansion sleeve, wherein the base is 1, the positioning table section is 2, the first tool shaft section is 3, the second tool shaft section is 4, the third tool shaft section is 5, and the expansion sleeve is 7.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
A dynamic balance device for a disc rotor of a turbine engine comprises a base 1, a tooling shaft and an expansion sleeve 7, wherein the tooling shaft comprises a first tooling shaft section 3, a conical platform section 6, a positioning platform section 2, a second tooling shaft section 4 and a third tooling shaft section 5 which are sequentially connected, the conical platform section 6 is positioned at the center of the positioning platform section 2, the large end surface of the conical platform section 6 is positioned on the upper end surface of the positioning platform section 2, the expansion sleeve 7 is of a cylindrical structure, the inner profile of the expansion sleeve 7 is matched with the outer profile of the conical platform section 6, and a through gap is formed in the cylinder body of the expansion sleeve 7 along the axis direction; the upper end surface of the expansion sleeve 7 and the upper end surface of the conical table section 6 are provided with matched threaded holes; a sleeve is arranged at the center of the base 1, the second tool shaft section 4 and the third tool shaft section 5 are positioned in the sleeve, and the upper end surface of the sleeve is contacted with the lower end surface of the positioning table section 2; the first tool shaft section 3, the conical table section 6, the second tool shaft section 4 and the third tool shaft section 5 are coaxial, the diameters of the first tool shaft section 3 and the third tool shaft section 5 are the same, and the diameter of the second tool shaft section 4 is larger than that of the third tool shaft section 5; when the tool is used, the shaft necks of the first tool shaft section 3 and the third tool shaft section 5 are matched with a supporting roller of a dynamic balancing machine, and the second tool shaft section 4 is used for installing a driving belt of the dynamic balancing machine; the outer diameter of the expansion sleeve is smaller than the inner diameter of the disc rotor.
A center hole is machined in the non-connecting section of the first tool shaft section 3 and the third tool shaft section 5; and the coaxiality of the first tool shaft section 3, the conical table section 6, the second tool shaft section 4 and the third tool shaft section 5 is less than phi 0.01mm by taking the tip hole as a reference.
The diameter difference between the first tool shaft section 3 and the third tool shaft section 5 and the diameter difference between the first tool shaft section and the third tool shaft section are more than 10%.
The diameter of the second tool shaft 4 is different from that of a belt driving wheel of the dynamic balancing machine by more than 10%.
The perpendicularity of the upper end face of the positioning seat 2 is less than 0.01 mm.
The cone angle of the conical table section 6 ensures that the interference magnitude between the disc rotor and the tool shaft is not more than 0.02 mm.
The outer diameter of the expansion sleeve 7 is 0.01-0.05mm smaller than the inner diameter of the disc rotor.
The width of the gap on the expansion sleeve 7 is 0.5-1 mm.
The tooling shaft is formed by machining in an integrated machine.
When the tool is used, the second tool shaft section and the third tool shaft section are sleeved in the sleeve on the base, the positioning seat is supported on the sleeve, and the expansion sleeve is arranged on the first tool shaft section; then the disc rotor is arranged on the expansion sleeve, the end face of the disc rotor is close to the upper end face of the positioning platform section, and the outer circle of the expansion sleeve is expanded by arranging and screwing down the screw on the upper end face of the expansion sleeve, so that the disc rotor and the expansion sleeve are expanded, and the radial interference magnitude required by the disc rotor and the tool shaft is ensured; supporting a dynamic balance device provided with a disc rotor on the dynamic balance, detecting the radial and end face runout amount of the disc rotor, and ensuring that the disc rotor is installed right and is coaxial with a tool; starting the dynamic balancing machine, and eliminating the influence of the unbalance of the tool on a balancing result by adopting a 180-degree turnover compensation method; carrying out dynamic balance detection and correction; and after the dynamic balance result meets the requirement, taking down the dynamic balance device and the disc rotor from the dynamic balance machine, loosening the screw and taking down the disc rotor from the dynamic balance device.
In summary, the invention includes but is not limited to the above embodiments, and any equivalent replacement or local modification made under the spirit and principle of the invention should be considered as being within the protection scope of the invention.
Claims (9)
1. A dynamic balancing device for a disk rotor of a turbine engine is characterized in that: the device comprises a base (1), a tooling shaft and an expansion sleeve (7), wherein the tooling shaft comprises a first tooling shaft section (3), a conical table section (6), a positioning table section (2), a second tooling shaft section (4) and a third tooling shaft section (5) which are sequentially connected, the conical table section (6) is positioned at the center of the positioning table section (2), the large end surface of the conical table section (6) is positioned on the upper end surface of the positioning table section (2), the expansion sleeve (7) is of a cylindrical structure, the inner molded surface of the expansion sleeve (7) is matched with the outer molded surface of the conical table section (6), and a through gap is formed in the cylinder body of the expansion sleeve (7) along the axis direction; the upper end surface of the expansion sleeve (7) and the upper end surface of the conical table section (6) are provided with matched threaded holes; a sleeve is arranged at the center of the base (1), the second tool shaft section (4) and the third tool shaft section (5) are positioned in the sleeve, and the upper end surface of the sleeve is in contact with the lower end surface of the positioning table section (2); the first tool shaft section (3), the conical table section (6), the second tool shaft section (4) and the third tool shaft section (5) are coaxial, the diameters of the first tool shaft section (3) and the third tool shaft section (5) are the same, and the diameter of the second tool shaft section (4) is larger than that of the third tool shaft section (5); when the tool is used, the shaft necks of the first tool shaft section (3) and the third tool shaft section (5) are matched with a supporting roller of a dynamic balancing machine, and the second tool shaft section (4) is used for mounting a driving belt of the dynamic balancing machine; the outer diameter of the expansion sleeve is smaller than the inner diameter of the disc rotor.
2. A dynamic balancing device for a disc-like rotor of a turbine engine according to claim 1, characterized in that: a tip hole is machined in the non-connecting section of the first tool shaft section (3) and the third tool shaft section (5); and the coaxiality of the first tool shaft section (3), the conical table section (6), the second tool shaft section (4) and the third tool shaft section (5) is less than phi 0.01mm by taking the tip hole as a reference.
3. A dynamic balancing device for a disc-like rotor of a turbine engine according to claim 1, characterized in that: the diameters of the first tool shaft section (3) and the third tool shaft section (5) are different from the diameter of the support roller of the dynamic balancing machine by more than 10%.
4. A dynamic balancing device for a disc-like rotor of a turbine engine according to claim 1, characterized in that: the diameter of the second tool shaft (4) is different from that of a belt driving wheel of the dynamic balancing machine by more than 10%.
5. A dynamic balancing device for a disc-like rotor of a turbine engine according to claim 1, characterized in that: the perpendicularity of the upper end face of the positioning seat (2) is less than 0.01 mm.
6. A dynamic balancing device for a disc-like rotor of a turbine engine according to claim 1, characterized in that: the cone angle of the conical table section (6) ensures that the interference magnitude between the disc rotor and the tool shaft is less than or equal to 0.02 mm.
7. A dynamic balancing device for a disc-like rotor of a turbine engine according to claim 1, characterized in that: the outer diameter of the expansion sleeve (7) is 0.01-0.05mm smaller than the inner diameter of the disc rotor.
8. A dynamic balancing device for a disc-like rotor of a turbine engine according to claim 1, characterized in that: the width of the gap on the expansion sleeve (7) is 0.5-1 mm.
9. A dynamic balancing device for a disc-like rotor of a turbine engine according to claim 1, characterized in that: the tooling shaft is formed by machining in an integrated machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911159708.0A CN111044223A (en) | 2019-11-22 | 2019-11-22 | Dynamic balancing device for disc rotor of turbine engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911159708.0A CN111044223A (en) | 2019-11-22 | 2019-11-22 | Dynamic balancing device for disc rotor of turbine engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111044223A true CN111044223A (en) | 2020-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911159708.0A Pending CN111044223A (en) | 2019-11-22 | 2019-11-22 | Dynamic balancing device for disc rotor of turbine engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN111044223A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112816135A (en) * | 2020-12-29 | 2021-05-18 | 霍山嘉远智能制造有限公司 | Impeller dynamic balance device |
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| CN102589805A (en) * | 2012-01-19 | 2012-07-18 | 杭州集智机电设备制造有限公司 | Automatic chuck structure for measuring unbalanced amount of impellers |
| CN202974563U (en) * | 2012-11-29 | 2013-06-05 | 南阳防爆集团股份有限公司 | Expansion-tight type fan dynamic balancing verification clamp |
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| CN112816135A (en) * | 2020-12-29 | 2021-05-18 | 霍山嘉远智能制造有限公司 | Impeller dynamic balance device |
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Application publication date: 20200421 |
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| RJ01 | Rejection of invention patent application after publication |