A thermal vibration coupled residual stress control device for high-strength alloy rings

Abstract

This invention relates to the field of residual stress control technology for high-strength alloy rings, and discloses a thermal vibration coupling type residual stress control device for high-strength alloy rings. Multiple sets of vibration aging groups and multiple sets of heating devices are uniformly fixed in a ring at the top of the base. The vibration aging group includes: an armature, an excitation electromagnet, a support column, a loading head, a force-transmitting hydraulic cylinder, a preload hydraulic cylinder, a preload hydraulic cylinder fixing plate, a spring plate fixing plate, and a spring plate. The preload hydraulic cylinder generates a constant load along the radial direction of the high-strength alloy ring, which is transmitted to the inner ring wall of the high-strength alloy ring through the loading head. The force-transmitting hydraulic cylinder transmits the excitation load generated by the excitation electromagnet to the inner ring wall of the high-strength alloy ring through the loading head. The heating devices apply a thermal load to the high-strength alloy ring through a control panel. The interaction of the constant load, the excitation load, and the thermal load enables thermal vibration coupling type residual stress control of the high-strength alloy ring.

Description

Technical Field

[0001] The invention relates to the technical field of residual stress control of high-strength alloy annular workpieces, and in particular to a thermal vibration coupled residual stress control device for high-strength alloy annular workpieces. Background Art

[0002] Since high-strength alloy materials such as titanium alloy, aluminum alloy, and high-temperature alloy have excellent material properties such as low density, high strength, good corrosion resistance, good wear resistance, and good heat resistance, these high-strength alloy materials are widely used in military products such as aircraft engines, launch vehicles, and hypersonic missiles.

[0003] During the processing and manufacturing of high-strength alloy rings, residual stress will be generated inside the rings to a certain extent. The existence of residual stress will have many bad results on high-strength alloy rings, such as causing the rings to deform or change their size, reducing the actual bearing capacity of the rings, increasing stress corrosion of the rings, and reducing the fatigue mission of the rings. Any of these points may cause huge losses or even irreversible consequences. The newly proposed thermal vibration coupling residual stress equalization technology reduces the yield limit of the material through appropriate temperature, and promotes lattice slip movement through vibration to relax the uneven residual stress inside the material. With the extensive use of high-strength alloy materials in recent years, the regulation of residual stress of high-strength alloy rings has also become an important research direction. Due to the complexity of the types of rings, factors such as the exciting force frequency and heating temperature required for residual stress regulation also need to change accordingly, and existing equipment is difficult to meet the needs.

[0004] Therefore, the present invention proposes a thermal vibration coupled residual stress control device for a high-strength alloy ring, which can well cope with complex situations such as different ring sizes, different exciting force frequencies, and different heating temperatures. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides a high-strength alloy ring thermal vibration coupled residual stress control device, which can control the residual stress generated by high-strength alloy rings of different sizes during processing.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a thermal vibration coupling residual stress regulating device for high-strength alloy ring parts, wherein a plurality of vibration aging groups are evenly fixed in an annular manner on the top of the base, and the vibration aging groups include: an armature, an exciting electromagnet, a support column, a loading head, a force transmission hydraulic cylinder, a preload hydraulic cylinder, a preload hydraulic cylinder fixing plate, a spring plate fixing plate, a spring plate, etc., wherein the preload hydraulic cylinder fixing plate and the spring plate fixing plate are fixedly connected to the base, the outer side of the preload hydraulic cylinder fixing plate is fixedly connected to the preload hydraulic cylinder, the other end of the preload hydraulic cylinder is connected to the loading head, the inner side of the preload hydraulic cylinder fixing plate is fixedly connected to the exciting electromagnet, the spring plate fixing plate is connected to one side of the spring plate, and the other side of the spring plate is fixedly connected to the armature, a plurality of the support columns are installed on the spring plate, and the support columns are clearance-matched with the armature, The force transmission hydraulic cylinder is respectively installed at both ends of the armature, and the force transmission hydraulic cylinder is connected to the loading head. A ring is fixed on the outside of the loading head, and insulation side plates are fixed on both sides of the loading head. The insulation bottom plate is fixed on the bottom of the loading head. Multiple groups of heating devices are evenly fixed in a ring shape in the middle of the base. The inner ring of the base is provided with an inner insulation ring, and the outer ring of the base is provided with an outer insulation ring lining. The outside of the outer insulation ring lining is provided with an outer insulation ring jacket, and the inner ring of the outer insulation ring lining is evenly fixed with multiple temperature sensors. A hydraulic device is fixed at the bottom cavity of the base, and the force transmission hydraulic cylinder and the preload hydraulic cylinder are connected to the hydraulic device through pipelines. A data acquisition device is provided on the outside of the base, and the data acquisition device is connected to the exciting electromagnet, the force transmission hydraulic cylinder, the preload hydraulic cylinder, and the temperature sensor through a data transmission line group. The data acquisition device is equipped with a control panel, etc.

[0009] Preferably, six groups of the vibration aging groups are evenly fixed in an annular shape on the top of the base, and the six groups of the vibration aging groups simultaneously apply vibration loads to the ring member. Each group of the vibration aging groups includes two of the force transmission hydraulic cylinders and one of the preload hydraulic cylinders, wherein the two force transmission hydraulic cylinders are respectively located on both sides of the preload hydraulic cylinder, and the specific composition is as follows: Figure 3 shown.

[0010] Preferably, the armature is provided with a pocket structure in which a counterweight can be adjusted according to different exciting force frequencies, the force transmission hydraulic cylinders are fixed at both ends of the armature, and the armature is supported by the four support columns.

[0011] Preferably, the inner side of the loading head is fixedly connected to the force transmission hydraulic cylinder and the preload hydraulic cylinder, and the outer side of the loading head presses outwardly against the inner annular surface of the ring.

[0012] Preferably, insulation side plates are fixed on both sides of the loading head, an insulation bottom plate is fixed on the bottom edge of the loading head, the inner insulation ring is installed on the base, the outer ring of the base is installed on the outer insulation ring lining, the outer insulation ring jacket is fixed on the outside of the outer insulation ring lining, and the six temperature sensors are fixed on the inside of the outer insulation ring lining, and the base, the ring, the inner insulation ring, the outer insulation ring lining and the outer insulation ring jacket are coaxial.

[0013] Preferably, there are 6 evenly distributed annular bosses in the middle of the base for supporting the ring, and the heating device is provided in the middle of each boss in the middle of the base. The temperature provided by the heating device can be controlled by the control panel.

[0014] Preferably, the six preload hydraulic cylinders need to adopt a synchronization circuit, and the force transmission hydraulic cylinder needs to adopt a locking circuit.

[0015] (III) Beneficial effects

[0016] The present invention provides a device for regulating and loading materials based on thermal vibration coupling residual stress of high-strength alloy rings, which has the following beneficial effects:

[0017] 1. There are 6 vibration aging groups and heating devices respectively, which are evenly distributed on the base in an annular shape, so that the vibration load and thermal load applied to the ring are more uniform and stable, and the residual stress of the high-strength alloy ring can be fully regulated without generating additional residual stress inside the high-strength alloy ring.

[0018] 2. The excitation force generated by the excitation electromagnet is transmitted to the loading head through the force transmission hydraulic cylinder, and then transmitted to the workpiece. Before transmitting the vibration load, the force transmission hydraulic cylinder needs to use hydraulic pressure to press the hydraulic rod against the inner side of the ring, which can realize the residual stress regulation of high-strength alloy rings of different sizes.

[0019] 3. By configuring different masses for the armature and changing the frequency of electromagnetic excitation, the excitation frequency requirements of different high-strength alloy rings during stress regulation can be met. By changing the heating temperature through the control panel, the temperature requirements of different high-strength alloy rings during stress regulation can be met.

[0020] 4. The device has a scientific structural layout, a simple structure, and sufficient residual stress regulation. To a certain extent, it can complete vibration aging and thermal aging, as well as thermal-vibration coupled aging, for high-strength alloy rings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the structure of the present invention

[0022] Figure 2 Schematic diagram of the structure of the vibration aging system of the present invention

[0023] Figure 3 This is a schematic diagram of the structure of the vibration relief group A of the present invention.

[0024] Figure 4 Schematic diagram of the thermal aging system structure of the present invention

[0025] Figure 5 The schematic diagram of the structure of the base (1) in the present invention is

[0026] The symbols in the figure are explained as follows:

[0027] A. Vibration aging group; 1. Base; 2. Hydraulic device; 3. Data acquisition device; 4. Control panel; 5. Data transmission line group; 6. Insulation side panel; 7. Inner lining of outer insulation ring; 8. Outer insulation ring jacket; 9. Ring; 10. Insulation bottom plate; 11. Armature; 12. Excitation electromagnet; 13. Support column; 14. Loading head; 15. Force transmission hydraulic cylinder; 16. Preload hydraulic cylinder; 17. Preload hydraulic cylinder fixing plate; 18. Spring plate fixing plate; 19. Spring plate; 20. Temperature sensor; 21. Heating device; 22. Inner insulation ring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] like Figure 1-5As shown, the present invention provides a technical solution: a high-strength alloy ring thermal vibration coupling residual stress control device, a plurality of vibration aging groups A are evenly fixed in an annular manner on the top of the base 1, and the vibration aging group A includes: an armature 11, an exciting electromagnet 12, a support column 13, a loading head 14, a force transmission hydraulic cylinder 15, a preload hydraulic cylinder 16, a preload hydraulic cylinder fixing plate 17, a spring plate fixing plate 18, a spring plate 19, etc., wherein the preload hydraulic cylinder fixing plate 17 and the spring plate fixing plate 18 are fixedly connected to the base 1, the outer side of the preload hydraulic cylinder fixing plate 17 is fixedly connected to the preload hydraulic cylinder 16, the other end of the preload hydraulic cylinder 16 is connected to the loading head 14, the inner side of the preload hydraulic cylinder fixing plate 17 is fixedly connected to the exciting electromagnet 12, the spring plate fixing 18 is connected to one side of the spring plate 19, and the other side of the spring plate 19 is fixedly connected to the armature 11, and a plurality of support columns 13 are installed on the spring plate 19, and the support columns 13 and the armature 11 are gap matched. A force transmission hydraulic cylinder 15 is installed at both ends of the armature 11, and the force transmission hydraulic cylinder 15 is connected to the loading head 14. A ring 9 is fixed on the outside of the loading head 14. Insulation side plates 6 are fixed on both sides of the loading head 14, and an insulation bottom plate 10 is fixed on the bottom of the loading head 14. Multiple groups of heating devices 21 are evenly fixed in an annular shape in the middle of the base 1. An inner insulation ring 22 is provided on the inner ring of the base 1, and an outer insulation ring lining 7 is provided on the outer ring of the base 1. An outer insulation ring jacket 8 is provided on the outside of the outer insulation ring lining 7, and multiple temperature sensors 20 are evenly fixed in an annular shape inside the outer insulation ring lining 7. A hydraulic device 2 is fixed at the bottom cavity of the base 1. The force transmission hydraulic cylinder 15 and the preload hydraulic cylinder 16 are connected to the hydraulic device 2 through pipelines. A data acquisition device 3 is provided on the outside of the base 1. The data acquisition device 3 is connected to the exciting electromagnet 12, the force transmission hydraulic cylinder 15, the preload hydraulic cylinder 16, and the temperature sensor 20 through the data transmission line group 2. The data acquisition device 3 is equipped with a control panel 4.

[0030] Furthermore, 6 groups of vibration aging groups A are evenly fixed in an annular shape on the top of the base 1, and the 6 groups of vibration aging groups A simultaneously apply vibration loads to the ring 9. Each group of vibration aging groups A includes 2 force transmission hydraulic cylinders 15 and 1 preload hydraulic cylinder 16, wherein the 2 force transmission hydraulic cylinders 15 are respectively located on both sides of the preload hydraulic cylinder 16, which fully ensures the accuracy and stability of the uniform distribution of the vibration load. The specific composition is as follows: Figure 3 shown.

[0031] Furthermore, the armature 11 is provided with a pocket structure in which the counterweight can be adjusted according to different exciting force frequencies. Force transmission hydraulic cylinders 15 are fixed at both ends of the armature 11. The armature 11 is supported by four support columns 13, ensuring that the exciting force is always along the radial direction of the ring 9.

[0032] Furthermore, the inner side of the loading head 14 is fixedly connected to the force transmission hydraulic cylinder 15 and the preload hydraulic cylinder 16, and the outer side of the loading head 14 presses against the inner ring surface of the ring 9, so that the vibration load can be transmitted to the ring 9 regardless of how the size of the ring 9 changes.

[0033] Furthermore, the two side edges of the loading head 14 are fixed with insulation side plates 6, the bottom edge of the loading head 14 is fixed with insulation bottom plate 10, the base 1 is installed with inner insulation ring 22, the outer ring of the base 1 is installed with outer insulation ring lining 7, the outer side of the outer insulation ring lining 7 is fixed with outer insulation ring jacket 8, the inner side of the outer insulation ring lining 7 is fixed with 6 temperature sensors 20, the base 1, ring 9, inner insulation ring 22, outer insulation ring lining 7 and outer insulation ring jacket 8 are coaxial, which fully guarantees the accuracy and stability of the uniform distribution of the heat load.

[0034] Furthermore, there are 6 annular evenly distributed bosses in the middle of the base 1 for supporting the ring 9. A heating device 21 is provided in the middle of each boss in the middle of the base 1. The temperature provided by the heating device 21 can be controlled by a control panel 4, and different sizes of heat loads are provided to the ring 9 according to different requirements of residual stress regulation.

[0035] Furthermore, the six preload hydraulic cylinders 16 need to adopt a synchronous circuit, and the force transmission hydraulic cylinder 15 needs to adopt a locking circuit. The hydraulic rod of the force transmission hydraulic cylinder 15 is fixedly connected to the loading head 14, and the hydraulic rod of the preload hydraulic cylinder 16 is also fixedly connected to the loading head 14, so the force transmission hydraulic rod is also synchronized with the movement of the loading block. When the ring is preloaded, the locking circuit adopted by the force transmission hydraulic cylinder 15 can ensure that the vibration load is fully applied to the ring 9.

[0036] The working process of the present invention is as follows: first, the high-strength alloy ring 9 is placed at a suitable position on the base 1; second, the outer insulation ring lining 7 and the outer insulation ring jacket 8 are fixed on the base 1 so that the three are coaxial and cover the high-strength alloy ring 9; third, the required appropriate heating temperature is set through the control panel 4, and the data is transmitted to the heating device 21 through the data transmission line group 5. At the same time, the temperature sensor 20 monitors the temperature of the high-strength alloy ring 9 in real time, and then transmits the data to the data acquisition device 3 through the data transmission line group 5 for feedback adjustment to apply a suitable heat load to the high-strength alloy ring 9; fourth, the preload in the hydraulic cylinder 16 The hydraulic rod is extended to push the loading head 14, so that the loading head 14 is firmly against the inside of the high-strength alloy ring 9, generating a constant radial constant pressure load thereon, and at the same time, it also plays a role in positioning and tightening the high-strength alloy ring 9; fifth, according to the required excitation frequency, the counterweight of the armature 11 pocket is adjusted; sixth, the excitation electromagnet 12 is supplied with a suitable AC voltage to cause the armature 11 to generate an excitation load, and the vibration load is transmitted to the high-strength alloy ring 9 through the force transmission hydraulic cylinder 15; seventh, wait for the thermal load and the vibration load to fully regulate the residual stress inside the high-strength alloy ring 9, and complete the residual stress regulation of the high-strength alloy ring.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thermal vibration coupled residual stress control device for high-strength alloy rings, characterized in that: A plurality of vibration aging groups (A) are evenly fixed in a ring shape on the top of the base (1), wherein the vibration aging groups (A) include: an armature (11), an exciting electromagnet (12), a support column (13), a loading head (14), a force transmission hydraulic cylinder (15), a preload hydraulic cylinder (16), a preload hydraulic cylinder fixing plate (17), a spring plate fixing plate (18), and a spring plate (19), wherein the preload hydraulic cylinder fixing plate (17) and the spring plate fixing plate (18) are fixedly connected to the base (1), the outer side of the preload hydraulic cylinder fixing plate (17) is fixedly connected to the preload hydraulic cylinder (16), the other end of the preload hydraulic cylinder (16) is connected to the loading head (14), and the inner side of the preload hydraulic cylinder fixing plate (17) is fixedly connected to the preload hydraulic cylinder (16). The exciting electromagnet (12) is fixedly connected together, the spring plate fixing plate (18) is connected to one side of the spring plate (19), the other side of the spring plate (19) is fixedly connected to the armature (11), a plurality of support columns (13) are installed on the spring plate (19), the support columns (13) and the armature (11) are clearance-matched, the force transmission hydraulic cylinder (15) is respectively installed at both ends of the armature (11), the force transmission hydraulic cylinder (15) is connected to the loading head (14), a ring (9) is fixed on the outside of the loading head (14), the two sides of the loading head (14) are fixed with heat-insulating side plates (6), the bottom of the loading head (14) is fixed with a heat-insulating bottom plate (10), the armature (11) is fixed with a heat-insulating bottom plate (10), and the armature (11) is fixed with a heat-insulating side plate (6). ) is provided with a pocket structure, the force transmission hydraulic cylinder (15) is fixed at both ends of the armature (11), the armature (11) is supported by four support columns (13), a plurality of heating devices (21) are evenly fixed in an annular shape in the middle of the base (1), the inner ring of the base (1) is provided with an inner insulation ring (22), the outer ring of the base (1) is provided with an outer insulation ring lining (7), the outer side of the outer insulation ring lining (7) is provided with an outer insulation ring jacket (8), a plurality of temperature sensors (20) are evenly fixed in an annular shape inside the outer insulation ring lining (7), a hydraulic device (2) is fixed at the bottom cavity of the base (1), the force transmission hydraulic cylinder (15) and the preload hydraulic cylinder (16) are connected to the hydraulic device (2) through pipelines A data acquisition device (3) is provided on the outside of the base (1). The data acquisition device (3) is connected to the exciting electromagnet (12), the force transmission hydraulic cylinder (15), the preload hydraulic cylinder (16), and the temperature sensor (20) through a data transmission line group (5). The data acquisition device (3) is equipped with a control panel (4). Six groups of vibration aging groups (A) are evenly fixed in a circular shape on the top of the base (1). The six groups of vibration aging groups (A) simultaneously apply vibration loads to the ring member (9). Each group of vibration aging groups (A) includes two force transmission hydraulic cylinders (15) and one preload hydraulic cylinder (16), wherein the two force transmission hydraulic cylinders (15) are respectively located on both sides of the preload hydraulic cylinder (16).

2. The high-strength alloy ring thermal vibration coupling residual stress control device according to claim 1, characterized in that: The inner side of the loading head (14) is fixedly connected to the force transmission hydraulic cylinder (15) and the preload hydraulic cylinder (16), and the outer side of the loading head (14) is pressed outward against the inner ring surface of the ring member (9).

3. The high-strength alloy ring thermal vibration coupling residual stress control device according to claim 1 is characterized in that: The two sides of the loading head (14) are fixed with insulation side plates (6), the bottom of the loading head (14) is fixed with an insulation bottom plate (10), the base (1) is installed with the inner insulation ring (22), the outer ring of the base (1) is installed with the outer insulation ring lining (7), the outer side of the outer insulation ring lining (7) is fixed with the outer insulation ring jacket (8), the inner side of the outer insulation ring lining (7) is fixed with six temperature sensors (20), and the base (1), the ring (9), the inner insulation ring (22), the outer insulation ring lining (7), and the outer insulation ring jacket (8) are coaxial.

4. The high-strength alloy ring thermal vibration coupling residual stress control device according to claim 1, characterized in that: There are 6 evenly distributed annular bosses in the middle of the base (1) for supporting the ring member (9), and the heating device (21) is provided in the middle of each boss in the middle of the base (1). The temperature provided by the heating device (21) can be controlled by the control panel (4).

5. The high-strength alloy ring thermal vibration coupling residual stress control device according to claim 2, characterized in that: The six preload hydraulic cylinders (16) need to use a synchronization circuit, and the force transmission hydraulic cylinder (15) needs to use a locking circuit.

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