CN109827733B - Multidimensional mechanical test system for automobile exhaust pipe - Google Patents
Multidimensional mechanical test system for automobile exhaust pipe Download PDFInfo
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- CN109827733B CN109827733B CN201910211260.6A CN201910211260A CN109827733B CN 109827733 B CN109827733 B CN 109827733B CN 201910211260 A CN201910211260 A CN 201910211260A CN 109827733 B CN109827733 B CN 109827733B
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- 238000004088 simulation Methods 0.000 claims abstract description 46
- 230000007246 mechanism Effects 0.000 claims description 58
- 230000005540 biological transmission Effects 0.000 claims description 32
- 230000001788 irregular Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 7
- 230000005284 excitation Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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Abstract
The invention discloses a multidimensional mechanical test system of an automobile exhaust pipe, which comprises a bottom plate and a plurality of swing simulation devices arranged on the bottom plate; the bottom plate is provided with a plurality of mounting holes, and a plurality of swing simulation devices are detachably mounted on the bottom plate; the swing simulation device comprises an up-and-down swing simulation device and a left-and-right swing simulation device. The vibration multidimensional mechanical test system for the automobile exhaust pipe is used for solving the problem of performance detection before delivery of the automobile exhaust pipe in a whole automobile factory, and has the advantages of simple structure and low production cost; the swinging simulation device is detachably arranged on the bottom plate, so that the vertical swinging simulation device and the horizontal swinging simulation device can be arranged on the bottom plate according to test requirements, a simple vertical swinging simulation test can be performed, a simple horizontal swinging simulation test can be performed, and a simulation test combining vertical swinging and horizontal swinging can be performed, so that the performance of the automobile exhaust pipe can be detected in a multi-dimensional manner, and reliability, stability and service life tests under various road conditions can be effectively simulated.
Description
Technical Field
The invention relates to the field of vibration analysis and detection application of automobile exhaust pipes, in particular to a multidimensional mechanical test system of an automobile exhaust pipe.
Background
In thousands of parts of an automobile, the automobile exhaust pipe is continuously subjected to vibration fatigue loss due to excitation from various road conditions and vibration periodically applied by an automobile engine, so that the reliability and the service life of the exhaust pipe are seriously influenced. The noise degree of the automobile is directly determined by the quality of the automobile exhaust pipe, and the new automobile is required to be subjected to strict performance detection before exiting the whole automobile factory so as to ensure the stable and reliable operation of the new automobile, and no complete multidimensional mechanical vibration analysis and detection system designed for the automobile exhaust pipe is available in China at present.
Disclosure of Invention
The invention aims at: the multidimensional mechanical test system for the automobile exhaust pipe can multidimensional detect the performance of the automobile exhaust pipe before delivery, and effectively simulate reliability, stability and service life tests under various road conditions.
The technical scheme of the invention is as follows: a multidimensional mechanical test system of an automobile exhaust pipe comprises a bottom plate and a plurality of swing simulation devices which are arranged on the bottom plate; the base plate is provided with a plurality of mounting holes, and a plurality of swing simulation devices are mounted on the base plate through fasteners and the mounting holes; the swing simulation device comprises an up-and-down swing simulation device and a left-and-right swing simulation device.
As an optimized technical scheme, the up-down swing simulation device comprises an up-down swing fixing bracket, an up-down moving tray, an up-down moving transmission mechanism and an up-down swing driving mechanism; the up-down swing fixing support is arranged on the bottom plate, the up-down swing driving mechanism is arranged in the up-down swing fixing support, and the lower end of the up-down moving tray is in transmission connection with the up-down swing driving mechanism through the up-down moving transmission mechanism; the up-and-down swing driving mechanism drives the up-and-down moving tray to move up and down in the vertical direction.
As an optimal technical scheme, the up-and-down swing driving mechanism is a servo motor I; the up-and-down movement transmission mechanism comprises a rotating shaft with an irregular curved surface at the position, close to the outer circumference, of the upper end surface and a moving rod capable of moving up and down in the vertical direction; the upper end of the moving rod is fixedly connected with the up-and-down moving tray, and the lower end of the moving rod can be slidably supported at the position, close to the outer circumference, of the upper end surface of the rotating shaft; the rotating shaft is in transmission connection with an output shaft of the servo motor I; the servo motor I drives the rotating shaft to rotate, and the moving rod drives the up-and-down moving tray to move up and down under the support of the curved surface of the rotating shaft.
As an optimal technical scheme, the left-right swing simulation device comprises a fixed base, a left-right swing tray, a left-right swing transmission mechanism and a left-right swing driving mechanism; the fixed base is arranged on the bottom plate, the left-right swing driving mechanism is arranged on the fixed base, and the lower end of the left-right swing tray is in transmission connection with the left-right swing driving mechanism through the left-right swing transmission mechanism; the left-right swing driving mechanism drives the left-right swing tray to swing in the horizontal direction.
As an optimal technical scheme, the left-right swing driving mechanism is a servo motor II; the left-right swing transmission mechanism comprises an eccentric shaft, a connecting rod and a fulcrum rotating shaft; one end of the connecting rod is provided with a sliding groove, and the other end of the connecting rod is fixedly connected with the left-right swinging tray; an output shaft of the servo motor II is in transmission connection with the lower end part of the eccentric shaft, and the upper end part of the eccentric shaft penetrates through the sliding groove and can slide in the sliding groove; the pivot rotating shaft is fixedly connected to the fixed base, and the connecting rod is rotationally connected to the pivot rotating shaft; the servo motor II drives the eccentric shaft to rotate, so that the connecting rod is controlled to swing left and right by taking the axle center of the fulcrum rotating shaft as a rotating center, and finally the left and right swinging tray is driven to swing left and right in the horizontal direction.
As an optimal technical scheme, a clamping mechanism is arranged on the up-and-down moving tray.
As an optimal technical scheme, the left-right swinging tray is provided with a clamping mechanism.
The invention has the advantages that: the multidimensional mechanical test system for the automobile exhaust pipe is used for solving the problem of performance detection before delivery of the automobile exhaust pipe in the whole automobile factory, and has the advantages of simple structure and low production cost; the swinging simulation device is detachably arranged on the bottom plate, so that the vertical swinging simulation device and the horizontal swinging simulation device can be arranged on the bottom plate according to test requirements, a simple vertical swinging simulation test can be performed, a simple horizontal swinging simulation test can be performed, and a simulation test combining vertical swinging and horizontal swinging can be performed, so that the performance of the automobile exhaust pipe can be detected in a multi-dimensional manner, and reliability, stability and service life tests under various road conditions can be effectively simulated.
Drawings
The invention is further described below with reference to the accompanying drawings and examples:
FIG. 1 is a schematic view of a first embodiment of the present invention;
FIG. 2 is a top view of a first embodiment of the invention;
FIG. 3 is a schematic diagram of a second embodiment of the present invention;
Wherein: 1. a bottom plate; 1-1, mounting holes; 2. a vertical swing simulation device; 2-1, fixing the bracket by swinging up and down; 2-2, moving the tray up and down; 2-3, moving the transmission mechanism up and down; 2-31, a rotating shaft; 2-32, a movable rod; 2-4, a servo motor I; 3. a left-right swing simulation device; 3-1, fixing a base; 3-2, swinging the tray left and right; 3-3, a left-right swing transmission mechanism; 3-31, eccentric shaft; 3-32, connecting rod; 3-33, pivot rotating shaft; 3-34, a chute; 3-4, servo motor II.
Detailed Description
Embodiment one:
As shown in fig. 1-2, a multidimensional mechanical test system of an automobile exhaust pipe comprises a bottom plate 1 and four swing simulation devices arranged on the bottom plate 1; the base plate 1 is provided with a plurality of mounting holes 1-1, and four swing simulation devices are mounted on the base plate 1 through fasteners and the mounting holes 1-1; the four swing simulation devices include two up-and-down swing simulation devices 2 and two left-and-right swing simulation devices 3.
The up-down swing simulation device 2 comprises an up-down swing fixing bracket 2-1, an up-down moving tray 2-2, an up-down moving transmission mechanism 2-3 and an up-down swing driving mechanism; the up-down swing fixing support 2-1 is arranged on the bottom plate 1, the up-down swing driving mechanism is arranged in the up-down swing fixing support 2-1, and the lower end of the up-down moving tray 2-2 is in transmission connection with the up-down swing driving mechanism through the up-down moving transmission mechanism 2-3; the up-and-down swing driving mechanism drives the up-and-down moving tray 2-2 to move up and down in the vertical direction. More specifically, the up-and-down swing driving mechanism is a servo motor I2-4; the up-and-down movement transmission mechanism 2-3 comprises a rotating shaft 2-31 with an upper end face which is close to the outer circumference and is in an irregular curved surface, and a moving rod 2-32 which can move up and down in the vertical direction; the upper end of the moving rod 2-32 is fixedly connected with the up-and-down moving tray 2-2, and the lower end of the moving rod is slidably supported at the position, close to the outer circumference, of the upper end surface of the rotating shaft 2-31; the rotating shaft 2-31 is in transmission connection with an output shaft of the servo motor I2-4; the servo motor I2-4 drives the rotating shaft 2-31 to rotate, and the moving rod 2-32 drives the up-and-down moving tray 2-2 to move up and down under the curved surface support of the rotating shaft 2-31.
The left-right swing simulation device 3 comprises a fixed base 3-1, a left-right swing tray 3-2, a left-right swing transmission mechanism 3-3 and a left-right swing driving mechanism; the fixed base 3-1 is arranged on the bottom plate 1, the left-right swing driving mechanism is arranged on the fixed base 3-1, and the lower end of the left-right swing tray 3-2 is in transmission connection with the left-right swing driving mechanism through the left-right swing transmission mechanism 3-3; the left-right swing driving mechanism drives the left-right swing tray 3-2 to swing in the horizontal direction. More specifically, the left-right swing driving mechanism is a servo motor II 3-4; the left-right swing transmission mechanism 3-3 comprises an eccentric shaft 3-31, a connecting rod 3-32 and a fulcrum rotating shaft 3-33; one end of the connecting rod 3-32 is provided with a chute 3-34, and the other end is fixedly connected with the left-right swinging tray 3-2; an output shaft of the servo motor II 3-4 is in transmission connection with the lower end part of the eccentric shaft 3-31, and the upper end part of the eccentric shaft 3-31 penetrates through the sliding groove 3-34 and can slide in the sliding groove 3-34; the pivot rotating shaft 3-33 is fixedly connected to the fixed base 3-1, and the connecting rod 3-32 is rotatably connected to the pivot rotating shaft 3-33; the servo motor II 3-4 drives the eccentric shaft 3-31 to rotate, so that the control connecting rod 3-32 swings left and right by taking the axle center of the fulcrum rotating shaft 3-33 as a rotating center, and finally drives the left and right swinging tray 3-2 to swing left and right in the horizontal direction.
In the above technical scheme, the clamping mechanisms are arranged on the up-and-down moving tray 2-2 and the left-and-right swinging tray 3-2, and the clamping mechanisms can be round clamps for fixing the automobile exhaust pipe on the up-and-down moving tray 2-2 or the left-and-right swinging tray 3-2, simulating the excitation of the automobile when the automobile jolts up and down and moves up and down or the excitation of the automobile when the automobile sways left and right, and outputting corresponding reliability and service life test reports after the vibration table test system is started.
Embodiment two:
As shown in figure 3, the multidimensional mechanical test system of the automobile exhaust pipe comprises a bottom plate 1 and six swinging simulation devices which are arranged and installed on the bottom plate 1; the base plate 1 is provided with a plurality of mounting holes 1-1, and six swing simulation devices are mounted on the base plate 1 through fasteners and the mounting holes 1-1; the six swinging simulators comprise three up-and-down swinging simulators 2 and three left-and-right swinging simulators 3, and the arrangement mode is shown in figure 3. The rest is the same as the first embodiment. The multidimensional mechanical test system for the automobile exhaust pipe can be used in multiple combination, for example, when only up-down swing is simulated, the automobile exhaust pipe is fixed on two up-down moving trays 2-2 in the uppermost row; when only simulating left-right swing, the automobile exhaust pipe is fixed on the two left-right swing trays 3-2 in the middle row; when the vehicle is in up-down swing and left-right swing mixed simulation, the vehicle exhaust pipe can be fixed on one row of three swing simulation devices at the left side, and also can be fixed on one row of three swing simulation devices at the right side. The sensor is attached to the outer wall of the automobile exhaust pipe with detection, and a corresponding reliability and service life test report can be output after the vibration table test system is started.
Of course, the multidimensional mechanical test system for the automobile exhaust pipe is not limited to the two embodiments, and a plurality of swing simulation devices can be arranged on the bottom plate 1 according to the actual test conditions to achieve the test purpose. The system has the advantages of simple structure and low processing cost, can be simultaneously applied to various detections, and can be popularized and applied.
The up-and-down swing driving mechanism and the left-and-right swing driving mechanism in the invention are not limited to the servo motor, but may be a cylinder, an electric cylinder, a screw rod and the like as long as the swing effect thereof can be achieved.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations which can be accomplished by persons skilled in the art without departing from the spirit and technical spirit of the present invention shall be covered by the appended claims.
Claims (3)
1. A multidimensional mechanical test system for an automobile exhaust pipe is characterized in that: comprises a bottom plate (1) and a plurality of swinging simulation devices which are arranged and installed on the bottom plate (1); a plurality of mounting holes (1-1) are formed in the base plate (1), and a plurality of swing simulation devices are detachably mounted on the base plate (1) through fasteners and the mounting holes (1-1); the swing simulation device comprises an up-down swing simulation device (2) and a left-right swing simulation device (3);
The up-and-down swing simulation device (2) comprises an up-and-down swing fixing bracket (2-1), an up-and-down moving tray (2-2), an up-and-down moving transmission mechanism (2-3) and an up-and-down swing driving mechanism; the up-down swing fixing support (2-1) is arranged on the bottom plate (1), the up-down swing driving mechanism is arranged in the up-down swing fixing support (2-1), and the lower end of the up-down moving tray (2-2) is in transmission connection with the up-down swing driving mechanism through the up-down moving transmission mechanism (2-3); the up-and-down swing driving mechanism drives the up-and-down moving tray (2-2) to move up and down in the vertical direction;
The left-right swing simulation device (3) comprises a fixed base (3-1), a left-right swing tray (3-2), a left-right swing transmission mechanism (3-3) and a left-right swing driving mechanism; the fixed base (3-1) is arranged on the bottom plate (1), the left-right swing driving mechanism is arranged on the fixed base (3-1), and the lower end of the left-right swing tray (3-2) is in transmission connection with the left-right swing driving mechanism through the left-right swing transmission mechanism (3-3); the left-right swing driving mechanism drives the left-right swing tray (3-2) to swing in the horizontal direction;
The up-and-down swing driving mechanism is a servo motor I (2-4); the up-and-down movement transmission mechanism (2-3) comprises a rotating shaft (2-31) with an irregular curved surface at the position, close to the outer circumference, of the upper end face and a moving rod (2-32) capable of moving up and down in the vertical direction; the upper end of the moving rod (2-32) is fixedly connected with the up-and-down moving tray (2-2), and the lower end of the moving rod is slidably supported at the position, close to the outer circumference, of the upper end face of the rotating shaft (2-31); the rotating shaft (2-31) is in transmission connection with an output shaft of the servo motor I (2-4); the servo motor I (2-4) drives the rotating shaft (2-31) to rotate, and the moving rod (2-32) drives the up-and-down moving tray (2-2) to move up and down under the curved surface support of the rotating shaft (2-31);
the left-right swing driving mechanism is a servo motor II (3-4); the left-right swing transmission mechanism (3-3) comprises an eccentric shaft (3-31), a connecting rod (3-32) and a fulcrum rotating shaft (3-33); one end of the connecting rod (3-32) is provided with a chute (3-34), and the other end is fixedly connected with the left-right swinging tray (3-2); an output shaft of the servo motor II (3-4) is in transmission connection with the lower end part of the eccentric shaft (3-31), and the upper end part of the eccentric shaft (3-31) penetrates through the sliding groove (3-34) and can slide in the sliding groove (3-34); the pivot rotating shaft (3-33) is fixedly connected to the fixed base (3-1), and the connecting rod (3-32) is rotatably connected to the pivot rotating shaft (3-33); the servo motor II (3-4) drives the eccentric shaft (3-31) to rotate, so that the connecting rod (3-32) is controlled to swing left and right by taking the axle center of the fulcrum rotating shaft (3-33) as a rotating center, and finally the left and right swinging tray (3-2) is driven to swing left and right in the horizontal direction.
2. The vehicle exhaust pipe multidimensional mechanical testing system according to claim 1, wherein: the clamping mechanism is arranged on the up-and-down moving tray (2-2).
3. The vehicle exhaust pipe multidimensional mechanical testing system according to claim 1, wherein: the left-right swinging tray (3-2) is provided with a clamping mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910211260.6A CN109827733B (en) | 2019-03-20 | 2019-03-20 | Multidimensional mechanical test system for automobile exhaust pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910211260.6A CN109827733B (en) | 2019-03-20 | 2019-03-20 | Multidimensional mechanical test system for automobile exhaust pipe |
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| CN109827733A CN109827733A (en) | 2019-05-31 |
| CN109827733B true CN109827733B (en) | 2024-05-10 |
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| CN201910211260.6A Active CN109827733B (en) | 2019-03-20 | 2019-03-20 | Multidimensional mechanical test system for automobile exhaust pipe |
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