CN113740013B - High-temperature resistant device for powder metallurgy damping experiment - Google Patents
High-temperature resistant device for powder metallurgy damping experiment Download PDFInfo
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- CN113740013B CN113740013B CN202111038653.5A CN202111038653A CN113740013B CN 113740013 B CN113740013 B CN 113740013B CN 202111038653 A CN202111038653 A CN 202111038653A CN 113740013 B CN113740013 B CN 113740013B
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Abstract
The invention provides a high-temperature resistant device for a powder metallurgy damping experiment, which comprises a high-temperature vacuum furnace fixed on a base, wherein the middle part of the high-temperature vacuum furnace is used for fixing a test piece; a cooling device is fixed at the position above the high-temperature vacuum furnace, which is opposite to the test piece, and another cooling device is fixed at the position below the high-temperature vacuum furnace, which is opposite to the test piece; and a switch component is fixed at the opening of each of the two cooling devices. A vibration generating device is fixed in one cooling device, and a vibration piece of the vibration generating device is in contact with the test piece to drive the test piece to vibrate; a data detection device is fixed in the other cooling device, and a detection piece of the data detection device detects the vibration response of the test piece; the invention completes the whole damping experiment process in the high-temperature vacuum furnace, avoids the influence of repeated windowing on the experiment precision, and simultaneously utilizes the cooling device to reduce the temperature of the data detection device in a high-temperature environment and improve the detection precision.
Description
Technical Field
The invention belongs to the technical field of damping experiments, and particularly relates to a high-temperature resistant device for a powder metallurgy damping experiment.
Background
With the development of aerospace, transportation and information industries, research and development of novel light alloy materials are valued by various countries. The magnesium alloy is an alloy formed by adding other elements into magnesium as a base, is the lightest metal structure material in the current practical application, and has the advantages of small density, high strength, good damping property, good cutting processability and good casting performance. The magnesium alloy has a plurality of types, wherein the ZK60A magnesium alloy has the characteristics of high strength and good corrosion resistance, and is mainly used for shells of electric products, small-sized thin or special-shaped brackets and the like. Powder metallurgy is an industrial technology for preparing metal powder or metal powder as a raw material, and preparing metal materials, composite materials and various products through forming and sintering.
In the powder metallurgy high-temperature damping experiment in the prior art, a test piece is generally placed in a high-temperature vacuum furnace and is made to be in a high-temperature environment. However, during vibration excitation, vibration excitation is generally increased through a transparent window formed on the high-temperature vacuum furnace, and when the vibration excitation is finished, the damping data of the metal material is detected through the transparent window formed on the high-temperature vacuum furnace, so that the window formed on the high-temperature vacuum furnace is long in time, and the temperature of an internal experiment is influenced. Even if the vibration generating device and the data detection device are placed in a high-temperature environment in order to avoid the number of times of windowing, the high-temperature environment can influence the measurement precision of the sensor and the accuracy of the measurement data is difficult to guarantee because the data detection side device generally adopts the sensor to detect the data.
Disclosure of Invention
The invention aims to provide a high-temperature resistant device for a powder metallurgy damping experiment, which is used for solving the technical problem.
The technical scheme of the invention is as follows:
a high temperature resistant device for powder metallurgy damping experiment comprises:
the high-temperature vacuum furnace is fixed on the base;
the test piece fixing device is fixed in the middle of the high-temperature vacuum furnace and used for fixing a test piece;
one cooling device is fixed at the position above the high-temperature vacuum furnace, which is opposite to the test piece, and the other cooling device is fixed at the position below the high-temperature vacuum furnace, which is opposite to the test piece;
the two switch assemblies are respectively fixed at openings at one ends of the two cooling devices, which are opposite to the test piece;
the vibration generating device is fixed inside one of the cooling devices; a vibrating piece of the vibration generating device penetrates through the switch assembly to be in contact with the test piece to drive the test piece to vibrate;
the data detection device is fixed inside the other cooling device; and the detection piece of the data detection device passes through the switch assembly to detect the vibration response of the test piece.
The cooling device includes:
the cooling box is fixed on the high-temperature vacuum furnace; the vibration generating device and the data detection device are clamped in the cooling box; a notch is formed in the position, opposite to the test piece, of the cooling box, and the switch assembly is fixed at the notch;
the supporting frame is fixed in the cooling box;
the outer side of the condensation pipe is wound with a steel wire mesh which is fixed on the outer side of the support frame;
one end of the first connecting pipe is fixedly connected with the side wall of the cooling box and communicated with the inside of the cooling box, and the other end of the first connecting pipe penetrates through the high-temperature vacuum furnace;
one end of the second connecting pipe is connected with one end of the first connecting pipe penetrating through the high-temperature vacuum furnace through a flexible connecting piece, and the other end of the second connecting pipe is fixedly connected with the refrigerating assembly.
Above-mentioned refrigeration subassembly includes:
the refrigeration box is fixed on the base;
the evaporator is fixed in the refrigeration box; heat dissipation holes are formed in the positions, opposite to the evaporator, of the refrigeration box;
the compressor is fixed in the refrigeration box;
wherein the condenser tube, the evaporator and the compressor are connected to form a closed-loop refrigeration system.
The flexible connecting piece is made of flexible rubber.
A solid cylinder is fixed at the position of the cooling box with the notch, and a square through hole allowing the vibration piece and the detection piece to penetrate is formed in the center of the cylinder.
The above-mentioned switch module includes:
the plate body transversely penetrates through the cylinder;
the rack is fixed on the upper side of the plate body;
a gear engaged with the rack;
and the rotating shaft penetrates through the center of the gear, one end of the rotating shaft is connected with an output shaft of the first motor, and the other end of the rotating shaft is connected with the cooling box through a bearing.
Above-mentioned test piece fixing device includes:
the cuboid is fixed on the transverse moving mechanism;
a first electric push rod, the outer shell is fixed on the cuboid,
the outer shell is fixed on the cuboid, and the telescopic end of the second electric push rod is relatively telescopic with the first electric push rod;
the two pressing plates are respectively and fixedly connected with the telescopic ends of the first electric push rod and the second electric push rod;
wherein, first electric putter and second electric putter compress tightly the test piece from upper and lower both sides.
The lateral movement mechanism includes:
the left end and the right end of the screw rod are connected with a bearing seat fixed on the inner side wall of the high-temperature vacuum furnace through bearings;
the second motor is fixed in the high-temperature vacuum furnace, and an output shaft of the second motor is fixedly connected with one end of the screw;
the nut is in threaded connection with the screw, a sliding block is fixed on one side of the nut, and the sliding block is in sliding connection with a sliding chute horizontally fixed on the inner side of the high-temperature vacuum furnace; the other side of the nut is fixedly connected with the cuboid through a connecting rod.
The vibration generating device comprises a third electric push rod, a first clamping block is fixed on the outer shell of the third electric push rod, the first clamping block is fixedly connected with a first clamping groove, and the first clamping groove is fixed on the cooling box; the vibrating part is a vibration exciter, and the telescopic end of the third electric push rod is fixedly connected with the vibrating part.
The data detection device comprises a vertical rod, wherein a second clamping block is fixed at the upper end of the vertical rod and fixedly connected with a second clamping groove, and the second clamping groove is fixed in the cooling box; the detection piece is a laser displacement sensor, and the laser displacement sensor is fixed at the lower end of the vertical rod.
The invention has the beneficial effects that:
1. in the prior art, a ZK60A metal material is generally placed in a high-temperature vacuum furnace to be in a high-temperature environment when a high-temperature damping experiment is carried out. However, the excitation is generally increased by providing a transparent window in the high temperature vacuum furnace. When the vibration excitation is finished, the damping data of the metal material is detected through a transparent window arranged on the high-temperature vacuum furnace. Therefore, the temperature of the internal experiment can be influenced if the window on the high-temperature vacuum furnace is opened for a long time. Even if the vibration generating device and the data detecting device are placed in a high temperature environment in order to avoid the number of times of windowing, the accuracy of data measurement is affected. The data detection device generally adopts a sensor to detect data, so that the measurement precision of the sensor is influenced by a high-temperature environment, and the accuracy of the measured data is difficult to ensure. Meanwhile, if the service life of the vibration generating device is influenced in a long-term high-temperature environment, the vibration part needs to be replaced repeatedly. The vibration generating device and the data detecting device are directly fixed in the high-temperature vacuum furnace, so that the temperature change in the furnace caused by long-time opening of the high-temperature vacuum furnace is avoided, and meanwhile, the two cooling devices are used for cooling the vibration generating device and the data detecting device, so that the influence of high temperature on the measured data is avoided.
2. The test pieces in the prior art are generally fixed at specific positions in a high-temperature vacuum furnace. The invention fixes the test piece by using the first electric push rod and the second electric push rod, and drives the test piece to move by using the transverse moving mechanism after the test piece is fixed, so that the test piece does not move according to the length of the test piece when the length of the test piece is different, and the test end is always positioned between the vibration generating device and the data detection device.
3. Cooling device among the prior art is the integral type structure, if adopt the integral type structure then compression motor fix in the high temperature vacuum furnace will drive the vibration, influence the experimental data. In order to ensure the experimental precision, the cooling device is divided into two parts, the first connecting pipe and the second connecting pipe are connected through the flexible connecting piece, and the flexible connecting piece is utilized, so that the high-temperature vacuum furnace is prevented from generating vibration even if the compressor generates small-amplitude vibration.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural diagram of the lateral shifting mechanism of the present invention.
Fig. 3 is a side view of the switch assembly of the present invention.
Fig. 4 is a schematic top view of the switch assembly of the present invention.
Fig. 5 is a schematic structural view of the vibration generating device of the present invention.
FIG. 6 is a schematic structural diagram of a data detection device according to the present invention.
Description of reference numerals:
1. a high temperature vacuum furnace; 2. a base; 3. a vibrating member; 4. a detection member; 5. a cooling tank; 6. a support frame; 7. a condenser tube; 8. a first connecting pipe; 9. a second connecting pipe; 10. a refrigeration case; 11. an evaporator; 12. a compressor; 13. a cylinder; 14. a plate body; 15. a rack; 16. a gear; 17. a rotating shaft; 18. a first motor; 19. a cuboid; 20. a first electric push rod; 21. a second electric push rod; 22. pressing a plate; 23. a screw; 24. a second motor; 25. a nut; 26. a slider; 27. a chute; 28. a connecting rod; 29. a third electric push rod; 30. a first clamping block; 31. a first card slot; 32. a vertical rod; 33. a second fixture block; 34. and a second card slot.
Detailed Description
An embodiment of the present invention will be described in detail with reference to fig. 1 to 6, but it should be understood that the scope of the present invention is not limited by the embodiment.
Example 1:
as shown in fig. 1, an embodiment of the present invention provides a high temperature resistant device for a powder metallurgy damping experiment, which includes a high temperature vacuum furnace 1 fixed on a base 2; the test piece fixing device is fixed in the middle of the high-temperature vacuum furnace 1 and used for fixing a test piece; one cooling device is fixed at the position above the high-temperature vacuum furnace 1 and opposite to the test piece, and the other cooling device is fixed at the position below the high-temperature vacuum furnace 1 and opposite to the test piece; the two switch assemblies are respectively fixed at openings at one ends of the two cooling devices, which are opposite to the test piece; the vibration generating device is fixed inside one of the cooling devices; a vibrating piece 3 of the vibration generating device passes through the switch assembly to be in contact with the test piece to drive the test piece to vibrate; the data detection device is fixed inside the other cooling device; the detecting piece 4 of the data detecting device passes through the switch assembly to detect the vibration response of the test piece.
Further, the cooling device comprises a cooling box 5 fixed on the high-temperature vacuum furnace 1; the vibration generating device and the data detection device are clamped in the cooling box 5; a notch is formed in the position, opposite to the test piece, of the cooling box 5, and the switch assembly is fixed at the notch; the support frame 6 is fixed in the cooling box 5; the outer side of the condensation pipe 7 is wound with a steel wire mesh which is fixed on the outer side of the support frame 6; one end of the first connecting pipe 8 is fixedly connected with the side wall of the cooling box 5 and communicated with the inside of the cooling box, and the other end of the first connecting pipe penetrates through the high-temperature vacuum furnace 1; one end of the second connecting pipe 9 is connected with one end of the first connecting pipe 8 penetrating through the high-temperature vacuum furnace 1 through a flexible connecting piece, and the other end of the second connecting pipe is fixedly connected with the refrigerating assembly.
Further, the refrigeration assembly comprises a refrigeration box 10 fixed on the base 2; an evaporator 11 fixed inside the refrigeration case 10; a heat dissipation hole is formed in the position, opposite to the evaporator 11, of the refrigeration box 10; a compressor 12 fixed inside the refrigeration case 10; wherein the condensation pipe 7, the evaporator 11 and the compressor 12 are connected to form a closed-loop refrigeration system.
Furthermore, the flexible connecting piece is made of flexible rubber.
Furthermore, a solid cylinder 13 is fixed at the position of the cooling box 5 with the notch, and a square through hole allowing the vibrating element 3 and the detecting element 4 to pass through is formed in the center of the cylinder 13.
Further, the switch assembly comprises a plate body 14 transversely penetrating the cylinder 13; a rack 15 fixed on the upper side of the plate body 14; a gear 16 engaged with the rack 15; and the rotating shaft 17 penetrates through the center of the gear 16, one end of the rotating shaft 17 is connected with an output shaft of the first motor 18, and the other end of the rotating shaft 17 is connected with the cooling box 5 through a bearing.
In the prior art, a ZK60A metal material is generally placed in a high-temperature vacuum furnace to be in a high-temperature environment when a high-temperature damping experiment is carried out. However, the excitation is generally increased by providing a transparent window in the high temperature vacuum furnace. When the vibration excitation is finished, the damping data of the metal material is detected through a transparent window arranged on the high-temperature vacuum furnace. Therefore, the temperature of the internal experiment can be influenced by the long opening time of the window on the high-temperature vacuum furnace. Even if the vibration generating device and the data detecting device are placed in a high temperature environment in order to avoid the number of times of windowing, the accuracy of data measurement is affected. The data detection device generally adopts a sensor to detect data, so that the measurement precision of the sensor is influenced by a high-temperature environment, and the accuracy of the measured data is difficult to ensure. Meanwhile, if the service life of the vibration generating device is influenced in a long-term high-temperature environment, the vibration part needs to be replaced repeatedly. According to the invention, the vibration generating device and the data detection device are directly fixed in the high-temperature vacuum furnace 1, so that the temperature change in the furnace caused by long-time opening of the high-temperature vacuum furnace 1 is avoided, and meanwhile, the vibration generating device and the data detection device are cooled by using the two cooling devices, so that the influence of high temperature on the measurement data is avoided.
The cooling device in the prior art is of an integrated structure, and if the integrated structure is adopted, the compressor 12 is fixed in the high-temperature vacuum furnace 1 to drive vibration, so that experimental data are influenced. In order to ensure the experimental precision, the cooling device is divided into two parts, the first connecting pipe 8 and the second connecting pipe 9 are connected through the flexible connecting piece, and the flexible connecting piece is utilized, so that the high-temperature vacuum furnace is prevented from generating vibration even if the compressor generates small-amplitude vibration.
Example 2:
the embodiment is based on embodiment 1, and the test piece fixing device comprises a cuboid 19 fixed on a transverse moving mechanism; the outer shell of the first electric push rod 20 is fixed on the cuboid 19; the outer shell of the second electric push rod 21 is fixed on the cuboid 19, and the telescopic end of the second electric push rod 21 and the first electric push rod 20 relatively extend and retract; the two pressing plates 22 are respectively fixedly connected with the telescopic ends of the first electric push rod 20 and the second electric push rod 21; wherein, the first electric push rod 20 and the second electric push rod 21 press the test piece from the upper and lower sides.
Further, the transverse moving mechanism comprises a screw 23, and the left end and the right end of the screw are connected with bearing seats fixed on the inner side wall of the high-temperature vacuum furnace 1 through bearings; the second motor 24 is fixed in the high-temperature vacuum furnace 1, and an output shaft of the second motor is fixedly connected with one end of the screw 23; the nut 25 is in threaded connection with the screw 23, a sliding block 26 is fixed on one side of the nut 25, and the sliding block 26 is in sliding connection with a sliding chute 27 horizontally fixed on the inner side of the high-temperature vacuum furnace 1; the other side of the nut 25 is fixedly connected with the cuboid 19 through a connecting rod 28.
Further, the vibration generating device comprises a third electric push rod 29, a first clamping block 30 is fixed on an outer shell of the third electric push rod 29, the first clamping block 30 is fixedly connected with a first clamping groove 31, and the first clamping groove 31 is fixed on the cooling box 5; the vibrating element 3 is a vibration exciter, and the telescopic end of the third electric push rod 29 is fixedly connected with the vibrating element 3.
Further, the data detection device comprises a vertical rod 32, a second clamping block 33 is fixed at the upper end of the vertical rod 32, the second clamping block 33 is fixedly connected with a second clamping groove 34, and the second clamping groove 34 is fixed in the cooling box 5; the detection piece 4 is a laser displacement sensor which is fixed at the lower end of the vertical rod 32.
The test pieces in the prior art are generally fixed at specific positions in the high temperature vacuum furnace 1. In the invention, the test piece is fixed by the first electric push rod 20 and the second electric push rod 21, and then is driven to move by the transverse moving mechanism after being fixed, so that the test piece moves according to the length of the test piece when the length of the test piece is different, and the test end is always positioned between the vibration generating device and the data detection device.
The working principle of the invention is as follows:
the following requirements were made in the high temperature damping experiments:
1. in order to eliminate the influence of air damping and avoid the oxidation of the material at high temperature, the test must be performed under vacuum; 2. the test piece must be heated to the required high temperature; 3. the excitation response should not introduce additional damping.
The application provides a high temperature resistant device of powder metallurgy damping experiment utilizes first electric putter 20 and second electric putter 21 from upper and lower both sides centre gripping testpieces earlier when using, starts the lateral shifting mechanism and removes according to the position of testpieces tip after accomplishing the testpieces centre gripping, makes its tip relative with vibration generating device and data detection device.
When the test piece is moved, the second motor 24 is started, the second motor 24 drives the screw rod 23 to rotate, the screw rod 23 drives the nut 25 to move, the nut 25 moves to drive the sliding block 26 with the fixed side wall to slide relative to the sliding groove 27, and the nut 25 drives the cuboid 19 of the clamping test piece to move to a position relative to the vibration generating device and the data detection device through the connecting rod 28.
At this time, the high-temperature vacuum furnace 1 is closed to be in a closed processing state, and the high-temperature vacuum furnace 1 is opened to heat the interior thereof, so that the test piece located therein is always in a high-temperature state. In order to ensure that the vibration generating device and the data detecting device are always in a low-temperature state in a high-temperature state, a compressor 12 of the cooling device is started to refrigerate, a condensing pipe reduces the temperature in the cooling box 5, and the evaporator 11 evaporates heat. In order to avoid excessive cold air from entering the high-temperature vacuum furnace 1 while the temperature is reduced, the opening and closing component is used to close the gap on the cooling box 5. When the device is closed, the first motor 18 is utilized to drive the rotating shaft 17 to rotate, the rotating shaft 17 drives the gear 16 to rotate, the gear 16 drives the rack 15 to move, the rack 15 moves to drive the plate body to slide along the cylinder 13, and the structure of the gear 16 and the rack 15 is utilized to control the opening and closing of the cylinder 13.
When the vibration generator is required to generate vibration excitation, the switch assembly corresponding to the cooling device for placing the vibration generator is opened in a short time, the third electric push rod 29 is utilized to drive the vibrating piece 3, namely the vibration exciter to be contacted with the test piece, and after the vibration excitation is completed, the switch assembly is quickly closed, so that the opening time of the switch assembly is extremely short and the temperature of the air in the high-temperature vacuum furnace 1 cannot be influenced.
After the vibration generator completes the excitation, the switch component corresponding to the cooling device for placing the data detection device is opened in a short time, and the laser displacement sensor is utilized to test the vibration response of the tip of the cantilever beam. In conclusion, the high-temperature resistant device for the powder metallurgy damping experiment is provided, the whole damping experiment process is completed in the high-temperature vacuum furnace, the influence of repeated windowing on the experiment precision is avoided, and meanwhile, the temperature of the data detection device is reduced by using the cooling device in a high-temperature environment, and the detection precision is improved.
Claims (7)
1. The utility model provides a high temperature resistant device of powder metallurgy damping experiment which characterized in that includes:
the high-temperature vacuum furnace (1) is fixed on the base (2);
the test piece fixing device is fixed in the middle of the high-temperature vacuum furnace (1) and used for fixing a test piece;
one cooling device is fixed at the position above the high-temperature vacuum furnace (1) and opposite to the test piece, and the other cooling device is fixed at the position below the high-temperature vacuum furnace (1) and opposite to the test piece;
the two switch assemblies are respectively fixed at openings at one ends of the two cooling devices, which are opposite to the test piece;
the vibration generating device is fixed inside one of the cooling devices; a vibrating piece (3) of the vibration generating device penetrates through the switch assembly to be in contact with the test piece to drive the test piece to vibrate;
the data detection device is fixed inside the other cooling device; a detection piece (4) of the data detection device passes through the switch assembly to detect the vibration response of the test piece;
the cooling device includes:
a cooling box (5) fixed on the high-temperature vacuum furnace (1); the vibration generating device and the data detection device are clamped in the cooling box (5); a notch is formed in the position, opposite to the test piece, of the cooling box (5), and the switch assembly is fixed at the notch;
the support frame (6) is fixed in the cooling box (5);
the outer side of the condensation pipe (7) is wound with a steel wire mesh which is fixed on the outer side of the support frame (6);
one end of the first connecting pipe (8) is fixedly connected with the side wall of the cooling box (5) and communicated with the inside of the cooling box, and the other end of the first connecting pipe penetrates through the high-temperature vacuum furnace (1);
one end of the second connecting pipe (9) is connected with one end of the first connecting pipe (8) penetrating through the high-temperature vacuum furnace (1) through a flexible connecting piece, and the other end of the second connecting pipe is fixedly connected with the refrigerating assembly;
a solid cylinder (13) is fixed at the position of the cooling box (5) with the notch, and the cylinder
(13) The center is provided with a square through hole for allowing the vibrating piece (3) and the detecting piece (4) to pass through;
the switch assembly includes:
a plate body (14) transversely penetrating the cylinder (13);
a rack (15) fixed on the upper side of the plate body (14);
a gear (16) engaged with the rack (15);
and the rotating shaft (17) penetrates through the center of the gear (16), one end of the rotating shaft (17) is connected with an output shaft of the first motor (18), and the other end of the rotating shaft (17) is connected with the cooling box (5) through a bearing.
2. The high temperature resistant device for powder metallurgy damping experiment according to claim 1, wherein the refrigeration component comprises:
the refrigeration box (10) is fixed on the base (2);
an evaporator (11) fixed inside the refrigeration box (10); the refrigerating box (10) is provided with heat dissipation holes at the position opposite to the evaporator (11);
a compressor (12) fixed inside the refrigeration case (10);
wherein the condenser pipe (7), the evaporator (11) and the compressor (12) are connected to form a closed-loop refrigeration system.
3. The high-temperature resistant device for the powder metallurgy damping experiment as claimed in claim 2, wherein the flexible connecting piece is made of flexible rubber.
4. The high-temperature resistant device for the powder metallurgy damping experiment as recited in claim 1, wherein the test piece fixing device comprises:
a rectangular parallelepiped (19) fixed to the lateral movement mechanism;
the first electric push rod (20), the outer shell is fixed on the said cuboid (19);
the outer shell of the second electric push rod (21) is fixed on the cuboid (19), and the telescopic end of the second electric push rod (21) is relatively telescopic with the first electric push rod (20);
the two pressure plates (22) are respectively and fixedly connected with the telescopic ends of the first electric push rod (20) and the second electric push rod (21);
wherein, the first electric push rod (20) and the second electric push rod (21) press the test piece from the upper side and the lower side.
5. The high-temperature resistant device for the powder metallurgy damping experiment according to claim 4, wherein the transverse moving mechanism comprises:
the left end and the right end of the screw rod (23) are connected with a bearing seat fixed on the inner side wall of the high-temperature vacuum furnace (1) through bearings;
the second motor (24) is fixed in the high-temperature vacuum furnace (1), and an output shaft of the second motor is fixedly connected with one end of the screw (23);
the nut (25) is in threaded connection with the screw (23), a sliding block (26) is fixed on one side of the nut (25), and the sliding block (26) is in sliding connection with a sliding chute (27) which is horizontally fixed on the inner side of the high-temperature vacuum furnace (1); the other side of the nut (25) is fixedly connected with the cuboid (19) through a connecting rod (28).
6. The high-temperature resistant device for the damping experiment of powder metallurgy according to claim 2, wherein the vibration generating device comprises a third electric push rod (29), a first clamping block (30) is fixed on an outer shell of the third electric push rod (29), the first clamping block (30) is fixedly connected with a first clamping groove (31), and the first clamping groove (31) is fixed on the cooling box (5); the vibrating piece (3) is a vibration exciter, and the telescopic end of the third electric push rod (29) is fixedly connected with the vibrating piece (3).
7. The high-temperature resistant device for the damping experiment in powder metallurgy as claimed in claim 2, wherein the data detection device comprises a vertical rod (32), a second clamping block (33) is fixed at the upper end of the vertical rod (32), the second clamping block (33) is fixedly connected with a second clamping groove (34), and the second clamping groove (34) is fixed in the cooling box (5); the detection piece (4) is a laser displacement sensor which is fixed at the lower end of the vertical rod (32).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111038653.5A CN113740013B (en) | 2021-09-06 | 2021-09-06 | High-temperature resistant device for powder metallurgy damping experiment |
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|---|---|---|---|
| CN202111038653.5A CN113740013B (en) | 2021-09-06 | 2021-09-06 | High-temperature resistant device for powder metallurgy damping experiment |
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| CN113740013A CN113740013A (en) | 2021-12-03 |
| CN113740013B true CN113740013B (en) | 2022-06-24 |
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| JP5234606B2 (en) * | 2008-08-08 | 2013-07-10 | 鹿島建設株式会社 | Active vibration suppression performance evaluation system and program |
| CN201434817Y (en) * | 2009-06-09 | 2010-03-31 | 西北工业大学 | High temperature damping tester |
| CN204008099U (en) * | 2014-07-24 | 2014-12-10 | 上海宝钢工贸有限公司 | Damping clad plate damping capacity proving installation |
| CN106769838B (en) * | 2017-02-21 | 2023-06-02 | 北京科技大学 | Material damping testing device with variable environment temperature |
| CN109115594B (en) * | 2018-09-03 | 2020-10-23 | 东北大学 | Device and method for testing mechanical property of fiber reinforced composite material during degradation |
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