CN110926740A - Device for testing service life of metal hose - Google Patents
Device for testing service life of metal hose Download PDFInfo
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- CN110926740A CN110926740A CN201911384661.8A CN201911384661A CN110926740A CN 110926740 A CN110926740 A CN 110926740A CN 201911384661 A CN201911384661 A CN 201911384661A CN 110926740 A CN110926740 A CN 110926740A
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- service life
- metal hose
- testing
- metal
- fixedly connected
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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
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
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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
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a device for testing the service life of a metal hose, which comprises a workbench (1), a plurality of vibration motors (2), a plurality of air heaters (5) and a pneumatic box (6), wherein the vibration motors (2) are fixedly connected on the workbench (1), the vibration motors (2) are connected with one end of the metal hose, the air heaters (5) are connected with the other end of the metal hose, and the pneumatic box (6) is connected with the air heaters (5) through a pipeline. Compared with the prior art, the invention has the advantages of capability of simulating various vibration environments, real-time detection, economy, high efficiency, improvement on test accuracy and the like.
Description
Technical Field
The invention relates to the field of automobile part testing devices, in particular to a device for testing the service life of a metal hose.
Background
In recent years, automobiles have become mass transportation vehicles, and the requirements of people on the comfort and safety of automobile driving are higher and higher. The mass of the automobile parts directly affects the mass of the whole automobile and the driving reliability, so the vibration test becomes a necessary work for checking the reliability and durability of the automobile parts.
The metal hose is connected on the connecting pipeline in series, so that part of noise generated by unit vibration can be absorbed, noise generated by fluid pulsation in the pipeline is absorbed, and at the moment, the noise value is only 33dB, and the environment in the vehicle is greatly improved. Therefore, the metal hose can absorb vibration, the fatigue failure capability of the system can be improved, and the effect of reducing noise can be achieved. Some piping systems use metal hoses because of this.
The vibration test is to test a vibration-affected object or model in order to evaluate the vibration resistance of the product in the expected use environment. The required vibration and impact effect can be generated in the vibration test process, so that the service life of the metal hose can be tested and evaluated.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the device for testing the service life of the metal hose, which can simulate various vibration environments, detect in real time, is economical and efficient and improves the testing accuracy.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a test metal collapsible tube life's device, the device includes workstation, a plurality of vibrating motor, a plurality of air heater and pneumatic case, the vibrating motor rigid coupling on the workstation, vibrating motor and metal collapsible tube one end are connected, the air heater be connected with the metal collapsible tube other end, pneumatic case and air heater pass through the pipe connection.
Furthermore, the vibration motor is fixedly connected above and below the motor fixing plate, the motor fixing frame is arranged on the workbench through a plurality of fixing support frames, and the motor fixing plate is fixedly connected with the metal hose through a connecting piece.
Furthermore, the connecting piece is T-shaped, the top of the connecting piece is fixedly connected with the motor fixing plate, and the bottom of the connecting piece is fixedly connected with the workbench.
Furthermore, the hot air blower is connected with the metal hose through a hot air pipe.
Furthermore, the hot air pipe is fixedly connected with a fixed support, and the fixed support is fixedly connected on the workbench.
Further, the workstation support subaerial through many stands, the stand between connect through the crossbeam, be equipped with the callus on the sole of moving away to avoid possible earthquakes between stand and the ground.
Further, the pneumatic box is arranged on the cross beam.
Furthermore, an air pump is arranged in the pneumatic box and connected with the air heater through a pipeline.
Further, the air pump, the air heater and the vibration motor are electrically connected with a control box for controlling the air pump, the air heater and the vibration motor.
Further, the control box is arranged on the cross beam.
The automobile vibration test analysis method is based on the current virtual instrument technology, and combines effective effects generated in the test process and the heating sensor technology to extract and analyze the vibration frequency generated in the running of the automobile so as to finish the identification of the real-time state of the product.
The frequency of the motor is changed by the frequency converter in the control box, then the effect of stretching the hoses at the two ends is achieved through the axial movement of the upper motor and the lower motor, the hot air blowers at the two ends heat and supply air to simulate the automobile exhaust emission, and the service life of the hoses is tested through the product testing time. The upper motor and the lower motor are symmetrically arranged, so that the automobile exhaust emission pipe testing device is closer to the real environment of an automobile exhaust emission pipe.
The novel design scheme is adopted to ensure that the hose and the connecting piece of the product do not displace during installation. Therefore, the influence of various vibration environments on the product in simulated transportation and use environments is achieved, so that the capability of determining whether the product can bear various vibrations or not is determined, and the shock resistance, the reliability and the service life of the product structure are detected.
The metal hose device which is installed and butted in the vibration experiment completely meets the automobile installation index, and the installation skill of the product can be skillfully realized in the state of testing the product. The working efficiency is improved, and the labor cost is saved.
Compared with the prior art, the invention has the following advantages:
(1) the real-time exhaust emission state of the automobile in actual work can be simulated approximately and truly according to the requirements of the test piece by arranging components such as a vibration motor, a hot air blower and the like;
(2) the test piece metal hose can be detected in real time, the test piece metal hose is exposed outside, and the product quality can be observed and tested at the first time in the simulation test process;
(3) the method is economical and efficient, the stability of the product can be quickly detected through simulation test, the reliability is realized, the additional test cost is saved, and the failure condition of a test piece which is difficult to predict in a real environment can be further avoided;
(4) the device is stable and reliable, the whole set of equipment can run more stably by additionally arranging parts such as the shock-absorbing foot pads and the fixed support, the operation can be facilitated as long as the laboratory operation flow is standardized, and the quality detection of products is more accurate.
Drawings
FIG. 1 is a schematic view of an apparatus for testing the service life of a metal hose in an embodiment;
the reference numbers in the figures indicate: the device comprises a workbench 1, a stand column 11, a vibration motor 2, a connecting piece 21, a motor fixing plate 3, a fixing support 31, a fixing support 4, a hot air blower 5, a hot air pipe 51, a pneumatic box 6, an air pump 61 and a control box 7.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Examples
The utility model provides a test metal collapsible tube life's device, as figure 1, the device includes workstation 1, two vibrating motor 2, two air heaters 5 and pneumatic case 6, and vibrating motor 2 rigid coupling is on workstation 1, and vibrating motor 2 is connected with metal collapsible tube one end, and air heater 5 is connected with the metal collapsible tube other end, and pneumatic case 6 passes through the pipe connection with air heater 5.
The workbench 1 is supported on the ground through a plurality of upright posts 11, the upright posts 11 are connected through a cross beam, and a shock-absorbing foot pad 8 is arranged between the upright posts 11 and the ground. The pneumatic box 6 is arranged on the cross beam. An air pump 61 is arranged in the pneumatic box 6, and the air pump 61 is connected with the hot air blower 5 through a pipeline. The air pump 61, the air heater 5 and the vibration motor 2 are electrically connected with a control box 7 for controlling the air pump, the air heater and the vibration motor. A control box 7 is also arranged on the cross beam.
The vibration motor 2 is fixedly connected above and below the motor fixing plate 3, the motor fixing frame 3 is erected on the workbench 1 through a plurality of fixing supports 31, and the motor fixing plate 3 is fixedly connected with the metal hose through a connecting piece 21. The connecting piece 21 is T-shaped, the top of the connecting piece 21 is fixedly connected with the motor fixing plate 3, and the bottom of the connecting piece 21 is fixedly connected with the workbench 1. The hot air blower 5 is connected with the metal hose by a hot air pipe 51. The hot air pipe 51 is fixedly connected with the fixed support 4, and the fixed support 4 is fixedly connected on the workbench 1.
The automobile vibration test analysis method is based on the current virtual instrument technology, and combines effective effects generated in the test process and the heating sensor technology to extract and analyze the vibration frequency generated in the running of the automobile so as to finish the identification of the real-time state of the product.
The frequency of the motor is changed by the frequency converter in the control box, then the effect of stretching the hoses at the two ends is achieved through the axial movement of the upper motor and the lower motor, the hot air blowers at the two ends heat and supply air to simulate the automobile exhaust emission, and the service life of the hoses is tested through the product testing time.
The novel design scheme is adopted to ensure that the hose and the connecting piece of the product do not displace during installation. Therefore, the influence of various vibration environments on the product in simulated transportation and use environments is achieved, so that the capability of determining whether the product can bear various vibrations or not is determined, and the shock resistance, the reliability and the service life of the product structure are detected.
The metal hose device which is installed and butted in the vibration experiment completely meets the automobile installation index, and the installation skill of the product can be skillfully realized in the state of testing the product. The working efficiency is improved, and the labor cost is saved.
Claims (10)
1. The utility model provides a test metal collapsible tube life's device, its characterized in that, the device include workstation (1), a plurality of vibrating motor (2), a plurality of air heater (5) and pneumatic case (6), vibrating motor (2) rigid coupling on workstation (1), vibrating motor (2) are connected with metal collapsible tube one end, air heater (5) be connected with the metal collapsible tube other end, pneumatic case (6) pass through the pipe connection with air heater (5).
2. The device for testing the service life of the metal hose according to claim 1, wherein the vibration motor (2) is fixedly connected above and below the motor fixing plate (3), the motor fixing frame (3) is erected on the workbench (1) through a plurality of fixing supports (31), and the motor fixing plate (3) is fixedly connected with the metal hose through a connecting piece (21).
3. The device for testing the service life of the metal hose according to claim 2, wherein the connecting piece (21) is T-shaped, the top of the connecting piece (21) is fixedly connected with the motor fixing plate (3), and the bottom of the connecting piece is fixedly connected with the workbench (1).
4. The device for testing the service life of the metal hose as claimed in claim 1, wherein the hot air blower (5) is connected with the metal hose by a hot air pipe (51).
5. The device for testing the service life of the metal hose according to claim 4, wherein the hot air pipe (51) is fixedly connected with a fixed support (4), and the fixed support (4) is fixedly connected with the workbench (1).
6. The device for testing the service life of the metal hose according to claim 1, wherein the workbench (1) is supported on the ground through a plurality of upright posts (11), the upright posts (11) are connected through a cross beam, and a shock-absorbing foot pad (8) is arranged between the upright posts (11) and the ground.
7. A device for testing the service life of metal hoses according to claim 6, characterized in that the pneumatic box (6) is arranged on a cross beam.
8. The device for testing the service life of the metal hose according to claim 1, wherein an air pump (61) is arranged in the pneumatic box (6), and the air pump (61) is connected with the hot air blower (5) through a pipeline.
9. The device for testing the service life of the metal hose according to claim 1 or 8, wherein the air pump (61), the hot air blower (5) and the vibration motor (2) are electrically connected with a control box (7) for controlling the air pump, the hot air blower and the vibration motor.
10. An apparatus for testing the service life of metal hoses according to claim 9, characterized in that the control box (7) is arranged on a cross beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911384661.8A CN110926740A (en) | 2019-12-28 | 2019-12-28 | Device for testing service life of metal hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911384661.8A CN110926740A (en) | 2019-12-28 | 2019-12-28 | Device for testing service life of metal hose |
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| Publication Number | Publication Date |
|---|---|
| CN110926740A true CN110926740A (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911384661.8A Pending CN110926740A (en) | 2019-12-28 | 2019-12-28 | Device for testing service life of metal hose |
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| CN (1) | CN110926740A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112683474A (en) * | 2020-12-15 | 2021-04-20 | 芜湖通和汽车管路系统股份有限公司 | Automobile pipeline vibration pressure-resistant test bed |
| CN115235984A (en) * | 2022-09-23 | 2022-10-25 | 航天晨光股份有限公司 | Single-degree-of-freedom testing device for output end of metal hose |
-
2019
- 2019-12-28 CN CN201911384661.8A patent/CN110926740A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112683474A (en) * | 2020-12-15 | 2021-04-20 | 芜湖通和汽车管路系统股份有限公司 | Automobile pipeline vibration pressure-resistant test bed |
| CN112683474B (en) * | 2020-12-15 | 2024-02-13 | 芜湖通和汽车流体系统有限公司 | Vibration pressure-resistant test stand for automobile pipeline |
| CN115235984A (en) * | 2022-09-23 | 2022-10-25 | 航天晨光股份有限公司 | Single-degree-of-freedom testing device for output end of metal hose |
| CN115235984B (en) * | 2022-09-23 | 2023-01-31 | 航天晨光股份有限公司 | Single-degree-of-freedom testing device for output end of metal hose |
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