CN216695552U - Adjustable fretting fatigue testing machine - Google Patents
Adjustable fretting fatigue testing machine Download PDFInfo
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- CN216695552U CN216695552U CN202220169811.4U CN202220169811U CN216695552U CN 216695552 U CN216695552 U CN 216695552U CN 202220169811 U CN202220169811 U CN 202220169811U CN 216695552 U CN216695552 U CN 216695552U
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- adjustable
- clamping sleeve
- actuator
- fine motion
- fretting
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- 238000009661 fatigue test Methods 0.000 title claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 230000009471 action Effects 0.000 claims description 10
- 229910000746 Structural steel Inorganic materials 0.000 claims description 8
- 230000006978 adaptation Effects 0.000 claims description 5
- 238000012360 testing method Methods 0.000 abstract description 20
- 238000009434 installation Methods 0.000 abstract description 14
- 238000004088 simulation Methods 0.000 abstract description 3
- 235000000396 iron Nutrition 0.000 abstract 3
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The utility model discloses an adjustable fretting fatigue testing machine which comprises a rack, a control system, a transmission system, a mounting assembly and a fretting mechanism, wherein the control system is mounted on the front side of the rack, the transmission system and the mounting assembly are in transmission connection and are respectively mounted on the left side and the right side of the top of the rack, the fretting mechanism is mounted on the mounting assembly and comprises angle irons, actuators, sensor assemblies and fretting pad clamps, the two angle irons are symmetrically distributed, and the actuators are erected above the space between the two angle irons through a beam frame. This adjustable fine motion fatigue test machine is provided with fine motion mechanism, and the test piece is installed on the installation component, with the fine motion pad anchor clamps suit on the test piece outer wall, and the cooperation actuator can exert vibration load to the test piece to the loaded condition of simulation axle spare actual work, in order to ensure the accuracy that reflects the fine motion fatigue damage of axle spare.
Description
Technical Field
The utility model relates to the technical field of testing machines, in particular to an adjustable fretting fatigue testing machine.
Background
The testing machine is an instrument for verifying the quality or performance of a product or a material according to design requirements before the product or the material is put into use, and the instrument for verifying the quality or the performance can be called the testing machine by definition.
Current axle piece fatigue testing machine is usually with the test piece suspension between two articulated axle loaders, exert the pull-down traction force to the axle loader through placing the weight, thereby apply radial invariable loading power to the axle piece, and the radial pressure condition that the axle piece bore is complicated changeable during the actual work, current axle piece fatigue testing machine can not simulate the actual condition of loading of axle piece, can not accurately reflect the fine motion fatigue damage of axle piece, for this reason, we design an adjustable fine motion fatigue testing machine, solve above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides an adjustable fretting fatigue testing machine, which solves the problems that the radial pressure condition borne by a shaft is complex and changeable during actual work, the actual loading condition of the shaft cannot be simulated by the conventional shaft fatigue testing machine, and the fretting fatigue damage of the shaft cannot be accurately reflected.
In order to achieve the purpose, the utility model is realized by the following technical scheme: an adjustable fretting fatigue testing machine comprises a frame, a control system, a transmission system, a mounting component and a fretting mechanism, wherein the control system is mounted on the front surface of the frame, the transmission system and the mounting component are in transmission connection and are respectively mounted on the left side and the right side of the top of the frame, the fretting mechanism is mounted on the mounting component,
the utility model discloses a jogging machine, including jogging machine, sensor module and micro-gap pad anchor clamps, the jogging machine is including angle bar, actuator, sensor module and micro-gap pad anchor clamps, the angle bar is established to two and is the symmetric distribution, the actuator erects the top between two angle bars through the roof beam structure, the output of actuator runs through in the roof beam structure and is connected with the micro-gap pad anchor clamps, sensor module erects the top between two angle bars and is located the below of micro-gap pad anchor clamps.
Preferably, the actuator comprises a cylinder and an electrohydraulic servo valve, the electrohydraulic servo valve is mounted on the cylinder and connected with a pump body, and the pump body is electrically connected with the control system.
Preferably, the micro-motion pad clamp comprises an upper clamping sleeve and a lower clamping sleeve, a positioning plate is fixedly sleeved above the upper clamping sleeve and outside the output end of the actuator, the upper clamping sleeve is in threaded connection with the output end of the actuator, the upper clamping sleeve and the lower clamping sleeve are connected to form an accommodating cavity for mounting a shaft to be measured, the positioning plate is connected with the upper clamping sleeve and the lower clamping sleeve through two limiting bolt rods, and an action column extending downwards is arranged at the bottom of the lower clamping sleeve.
Preferably, the sensor assembly comprises a support and a pressure sensor, the pressure sensor is embedded in the middle of the support and electrically connected with the control system, and a plurality of line cards are arranged on the left side and the right side of the bottom of the support.
Preferably, the mounting assembly comprises a workbench, a driving axle carrier and a driven axle carrier, and the driving axle carrier and the driven axle carrier are both mounted at the top of the workbench through axle carrier mounting seats.
Preferably, two all be equipped with the wedge strip that distributes along its length direction on the lateral wall of angle bar, the wedge groove of wedge strip looks adaptation is all seted up to the bottom of two inside walls before the roof beam structure, the roof beam structure passes through the screw and installs on two angle bars, and screw thread runs through in the roof beam structure extends to in the wedge groove and supports and press on the wedge strip.
Preferably, the support is connected with the angle iron through a bolt, the middle part of the side wall of the angle iron is provided with strip-shaped grooves distributed along the length direction of the side wall of the angle iron, and the strip-shaped grooves are matched with the bolt.
Advantageous effects
The utility model provides an adjustable fretting fatigue testing machine. Compared with the prior art, the method has the following beneficial effects:
this adjustable fine motion fatigue testing machine, through being provided with fine motion mechanism, the test piece is installed on the installation component, with the fine motion pad anchor clamps suit on the test piece outer wall, the cooperation actuator can exert vibration load to the test piece to the loaded condition of simulation axle spare actual work, in order to ensure the accuracy that reflects the fine motion fatigue damage of axle spare.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a micro-motion mechanism of the present invention;
FIG. 3 is a schematic view of an actuator mounting structure according to the present invention;
FIG. 4 is a schematic diagram of the construction of an actuator and micro-motion pad clamp of the present invention;
FIG. 5 is a schematic structural view of a sensor assembly of the present invention;
FIG. 6 is a schematic structural view of the mounting assembly of the present invention;
in the figure: 1. a frame; 2. a control system; 3. a transmission system; 4. mounting the component; 5. a micro-motion mechanism; 6. angle iron; 7. an actuator; 8. a sensor assembly; 9. a micro-motion pad clamp; 10. a beam frame; 11. a cylinder; 12. an electro-hydraulic servo valve; 13. an upper jacket; 14. a lower jacket; 15. positioning a plate; 16. a limit bolt bar; 17. an action column; 18. a support; 19. a pressure sensor; 20. a line card; 21. a work table; 22. a driving shaft carrier; 23. a driven shaft carrier; 24. an axle carrier mounting seat.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides an adjustable fine motion fatigue testing machine, which comprises a frame 1, control system 2, transmission system 3, installation component 4 and fine motion mechanism 5, control system 2 installs in the front of frame 1, transmission system 3 and the transmission of installation component 4 are connected and are installed respectively in the left side at 1 top of frame, the right side both sides, fine motion mechanism 5 is installed on installation component 4, fine motion mechanism 5 includes angle bar 6, actuator 7, sensor module 8 and fine motion pad anchor clamps 9, angle bar 6 establishes to two and is the symmetric distribution, actuator 7 erects the top between two angle bars 6 through roof beam structure 10, actuator 7's output runs through in roof beam structure 10 and is connected with fine motion pad anchor clamps 9, sensor module 8 erects the top between two angle bars 6 and is located the below of fine motion pad anchor clamps 9.
Based on the arrangement of the structure, the adjustable fretting fatigue testing machine consists of a rack 1, a control system 2, a transmission system 3, a mounting component 4 and a fretting mechanism 5, wherein the rack 1 is used as a bearing part for providing mounting support for the control system 2, the transmission system 3 and the mounting component 4, the fretting mechanism 5 is arranged on the mounting component 4, specifically, a test piece is embedded on the mounting component 4, the transmission system 3 is driven by a motor and controlled by the control system 2, the transmission system 3 is in transmission connection with the mounting component 4 for providing rotating driving force for the test piece arranged on the mounting component 4, the fretting mechanism 5 arranged on the mounting component 4 can apply a vibration load to the test piece by matching an actuator 7 with a fretting pad clamp 9 sleeved on the test piece, meanwhile, a sensor component 8 arranged below the fretting pad clamp 9 can monitor the applied load so as to facilitate an operator to adjust the load in time, this adjustable fine motion fatigue testing machine, through being provided with fine motion mechanism 8, the test piece is installed on installation component 4, with the fine motion pad anchor clamps 9 suit on the test piece outer wall, cooperation actuator 7 can exert vibration load to the test piece to the loaded condition of simulation axle spare actual work, with the accuracy of the fine motion fatigue damage of ensureing to reflect the axle spare.
Further, the actuator 7 includes a cylinder 11 and an electro-hydraulic servo valve 12, the electro-hydraulic servo valve 12 is mounted on the cylinder 11 and connected to a pump body, and the pump body is electrically connected to the control system 2. The actuator 7 is a key component for implementing vibration active control, the pump body controls the electro-hydraulic servo valve 12 to adjust the vibration amplitude and frequency of the actuating cylinder 11, and the pump body is controlled by the control system 2, so that the vibration load can be regulated and controlled by the control system 2.
Further, the micro-gasket clamp 9 comprises an upper jacket 13 and a lower jacket 14, a positioning plate 15 is fixedly sleeved on the outer portion, located at the output end of the actuator 7, above the upper jacket 13, the upper jacket 13 is in threaded connection with the output end of the actuator 7, the upper jacket 13 and the lower jacket 14 are connected and enclosed to form an accommodating cavity for mounting a shaft to be measured, the positioning plate 15 is connected with the upper jacket 13 and the lower jacket 14 through two limit bolt rods 16, and an action column 17 extending downwards is arranged at the bottom of the lower jacket 14. Wherein, the upper clamping sleeve 13 and the lower clamping sleeve 14 are connected and enclosed for assembling a test piece so as to cooperate with the actuator 7 to apply a vibration load to the test piece, preferably, the upper clamping sleeve 13 is connected to the output end of the actuator 7 in a threaded manner, and the upper clamping sleeve 13 and the lower clamping sleeve 14 are arranged below the positioning plate 15 through two limit bolt rods 16, so that the firmness and the stability of the installation are ensured, and the upper clamping sleeve 13 and the lower clamping sleeve 14 are convenient to position.
Further, the sensor assembly 8 comprises a support 18 and a pressure sensor 19, the pressure sensor 19 is embedded in the middle of the support 18 and electrically connected with the control system 2, and a plurality of line cards 20 are arranged on the left side and the right side of the bottom of the support 18. Wherein, the support 18 provides a mounting support structure for the pressure sensor 19, the pressure sensor 19 is arranged below the action column 17, under the action of the actuator 7, the action column 17 applies load to the pressure sensor 19, and the pressure sensor 19 transmits the monitored signal to the control system 2.
Further, the mounting assembly 4 includes a workbench 21, a driving shaft carrier 22 and a driven shaft carrier 23, and the driving shaft carrier 22 and the driven shaft carrier 23 are both mounted on the top of the workbench 21 through a shaft carrier mounting seat 24. Wherein, installation component 4 is used for installing the axle piece, the test piece is installed between initiative axle carrier 22 and driven axle carrier 23, initiative axle carrier 22 is connected by the transmission of transmission system 3 transmission, driven axle carrier 23 provides the rotation support for the axle piece, as preferred, 24 locating holes of axle carrier mount pad of installation initiative axle carrier 22 are the round hole structure, the mounted position is fixed, 24 locating holes of axle carrier mount pad of installation driven axle carrier 23 are the bar hole structure, the mount pad position is adjustable, the installation operation of the axle piece of being convenient for.
Further, all be equipped with the wedge strip that distributes along its length direction on the lateral wall of two angle bars 6, the wedge groove of wedge strip looks adaptation is all seted up to the bottom of two inside walls before the roof beam structure 10, and roof beam structure 10 passes through the screw installation on two angle bars 6, and the screw thread runs through in roof beam structure 10 extends to the wedge inslot and supports and press on the wedge strip. Wherein, roof beam structure 10 erects in the top of two angle bars 6 and provides mounting structure for actuator 7, and as preferred, roof beam structure 10 sliding connection can carry out horizontal regulation to actuator 7's position on two angle bars 6 to can adjust the point of application of force of vibration load, use more in a flexible way, simultaneously, adopt the wedge groove and the wedge strip of mutual adaptation to do as clamping structure, make the firm stability of installation.
Further, the support 18 is connected with the angle iron 6 through a bolt, the middle part of the side wall of the angle iron 6 is provided with a strip-shaped groove distributed along the length direction of the strip-shaped groove, and the strip-shaped groove is matched with the bolt. Wherein, the support 18 is used for providing the installation support to pressure sensor 19, as preferred, through offering the bar groove with bolt looks adaptation for the position of support 18 can be adjusted, with the cooperation actuator 7 that can transversely adjust.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. An adjustable fretting fatigue testing machine which is characterized in that: the device comprises a rack (1), a control system (2), a transmission system (3), a mounting assembly (4) and a micro-motion mechanism (5), wherein the control system (2) is mounted on the front surface of the rack (1), the transmission system (3) and the mounting assembly (4) are in transmission connection and are respectively mounted on the left side and the right side of the top of the rack (1), and the micro-motion mechanism (5) is mounted on the mounting assembly (4);
micro-motion mechanism (5) are including angle bar (6), actuator (7), sensor module (8) and fine motion pad anchor clamps (9), angle bar (6) are established to two and are the symmetric distribution, actuator (7) are erect in the top between two angle bars (6) through roof beam structure (10), the output of actuator (7) runs through in roof beam structure (10) and is connected with fine motion pad anchor clamps (9), sensor module (8) are erect in the top between two angle bars (6) and are located the below of fine motion pad anchor clamps (9).
2. The adjustable fretting fatigue tester according to claim 1, wherein: the actuator (7) comprises a working cylinder (11) and an electro-hydraulic servo valve (12), wherein the electro-hydraulic servo valve (12) is installed on the working cylinder (11) and connected with a pump body, and the pump body is electrically connected with the control system (2).
3. The adjustable fretting fatigue tester according to claim 1, wherein: the micro-gasket clamp (9) comprises an upper clamping sleeve (13) and a lower clamping sleeve (14), a positioning plate (15) is fixedly sleeved on the upper portion of the upper clamping sleeve (13) and the outer portion of the output end of the actuator (7), the upper clamping sleeve (13) is in threaded connection with the output end of the actuator (7), the upper clamping sleeve (13) and the lower clamping sleeve (14) are connected and enclosed to form an accommodating cavity for mounting a shaft to be measured, the positioning plate (15) is connected with the upper clamping sleeve (13) and the lower clamping sleeve (14) through two limiting bolt rods (16), and an action column (17) extending downwards is arranged at the bottom of the lower clamping sleeve (14).
4. The adjustable fretting fatigue tester according to claim 1, wherein: the sensor component (8) comprises a support (18) and a pressure sensor (19), the pressure sensor (19) is embedded in the middle of the support (18) and electrically connected with the control system (2), and a plurality of line cards (20) are arranged on the left side and the right side of the bottom of the support (18).
5. The adjustable fretting fatigue tester according to claim 1, wherein: the mounting assembly (4) comprises a workbench (21), a driving shaft carrier (22) and a driven shaft carrier (23), wherein the driving shaft carrier (22) and the driven shaft carrier (23) are mounted at the top of the workbench (21) through shaft carrier mounting seats (24).
6. The adjustable fretting fatigue tester according to claim 1, wherein: two all be equipped with the wedge strip that distributes along its length direction on the lateral wall of angle bar (6), the wedge groove of wedge strip looks adaptation is all seted up to the bottom of two inside walls before roof beam structure (10), roof beam structure (10) are installed on two angle bars (6) through the screw, and the screw thread runs through in roof beam structure (10) extend to the wedge inslot and support and press on the wedge strip.
7. The adjustable fretting fatigue tester according to claim 4, wherein: the support (18) is connected with the angle iron (6) through a bolt, the middle part of the side wall of the angle iron (6) is provided with strip-shaped grooves distributed along the length direction of the side wall, and the strip-shaped grooves are matched with the bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220169811.4U CN216695552U (en) | 2022-01-21 | 2022-01-21 | Adjustable fretting fatigue testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220169811.4U CN216695552U (en) | 2022-01-21 | 2022-01-21 | Adjustable fretting fatigue testing machine |
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| Publication Number | Publication Date |
|---|---|
| CN216695552U true CN216695552U (en) | 2022-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220169811.4U Expired - Fee Related CN216695552U (en) | 2022-01-21 | 2022-01-21 | Adjustable fretting fatigue testing machine |
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| CN (1) | CN216695552U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11698248B1 (en) * | 2022-02-24 | 2023-07-11 | Beijing University Of Technology | Device and method for measuring fretting displacement in power cycle of press-pack IGBT |
-
2022
- 2022-01-21 CN CN202220169811.4U patent/CN216695552U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11698248B1 (en) * | 2022-02-24 | 2023-07-11 | Beijing University Of Technology | Device and method for measuring fretting displacement in power cycle of press-pack IGBT |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220607 |
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| CF01 | Termination of patent right due to non-payment of annual fee |