CN112666024B - Clamp bending test device based on vibration physical field - Google Patents
Clamp bending test device based on vibration physical field Download PDFInfo
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- CN112666024B CN112666024B CN202011499897.9A CN202011499897A CN112666024B CN 112666024 B CN112666024 B CN 112666024B CN 202011499897 A CN202011499897 A CN 202011499897A CN 112666024 B CN112666024 B CN 112666024B
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- 238000012360 testing method Methods 0.000 title claims abstract description 121
- 238000005452 bending Methods 0.000 title claims abstract description 52
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 230000008859 change Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000009661 fatigue test Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The invention discloses a clamp bending test device based on a vibration physical field, which relates to the field of clamp test application and comprises a test module, a loading module and a bending power module, wherein the test module comprises a driving mechanism and a vibration mechanism. According to the invention, the bending power module drives the loading module to apply bending moment to the clamp pipeline assembly, the driving motor of the driving mechanism drives the gear transmission group to change the bending direction of the assembly, and the vibration equipment of the vibration mechanism simulates the real working environment of the clamp; under the same test, not only can carry out vibration test to clamp test assembly simultaneously in bending fatigue environment test, change the rotation direction moreover and need not to dismantle the equipment again, only drive the gear rotation test assembly through driving motor can to test result precision and test efficiency have effectively been improved, the practicality is extremely strong.
Description
Technical Field
The invention relates to the field of clamp test application, in particular to a clamp bending test device based on a vibration physical field.
Background
With the rise of airplane performance and pipeline design level in recent years, the requirements on the reliability performance of the system pipeline connection clamp are also increasingly increased, so that various clamp reliability performance test devices are induced.
At present, the conventional clamp bending fatigue test method comprises the following steps: the clamp and its components are mounted on a fixture as shown in fig. 1, applying a minimum tightening torque, rigidly securing one end of the conduit 07, and applying 80% of the nominal bending torque to the other end tab 011. The maximum working pressure is reached in the joint, and the working medium is aviation kerosene. A hundred thousand offset cycles were applied to the test assembly, one offset cycle comprising: bending moment is applied downwards, then unloading is carried out, then bending moment is applied upwards, and then unloading is carried out. The circulation rate is 60-120 cycles per minute. The test assembly was rotated 90 ° every 25000 cycles, at which time it was ensured that the joint was not loosened or tightened. After the test, the clamp is disassembled and visually inspected, and the clamp should not leak, deform or be damaged.
However, the above test scheme can only simulate the working state of the clamp in bending fatigue environment, and the rotation direction of the assembly needs to be manually adjusted, so that the function is single and the test efficiency is low. In order to overcome the defects, the invention provides a vibration and bending dual-function clamp clamping force testing device.
Disclosure of Invention
The invention aims to provide a clamp bending test device based on a vibration physical field, which solves the problems in the prior art, and can not only perform vibration test on a clamp test assembly in bending fatigue environment test, but also change the rotation direction without re-disassembly and assembly, and effectively improve the precision of test results and test efficiency.
In order to achieve the above object, the present invention provides the following solutions:
The invention provides a clamp bending test device based on a vibration physical field, which specifically comprises the following components:
the test module comprises a driving mechanism and a vibration mechanism, wherein the driving mechanism is used for controlling the test assembly to rotate, and the vibration mechanism is used for driving the test assembly to vibrate;
A loading module comprising a clamp for applying a bending moment to the test assembly under the drive of a loading force;
And the bending power module is connected with the loading module and used for driving the loading module and the test assembly to reciprocate up and down.
Optionally, the test module further comprises a test base, wherein the test base comprises a first base and a test stand arranged above the first base; the driving mechanism and/or the vibration mechanism are/is arranged on the test bed.
Optionally, the driving mechanism comprises a driving motor, a driving gear connected with the driving motor and a linkage gear set in transmission connection with the driving gear; the test assembly is mounted on the linkage gear set.
Optionally, the vibration mechanism includes a vibration motor, and the vibration motor is mounted on the test stand.
Optionally, a motor base is installed on one side of the test stand, and the vibration motor is installed on the motor base.
Optionally, a spring is installed between the test stand and the first base.
Optionally, the loading module further includes:
The top end of the supporting plate is connected with the bending power module;
The top end of the loading connecting rod is connected with the bottom end of the supporting plate through a spring, and the bottom end of the loading connecting rod is connected with the clamp;
the guide mechanism comprises a sliding rail and a sliding block which is slidably mounted on the sliding rail, the sliding rail is fixedly arranged, and one side of the supporting plate is provided with the sliding block.
Optionally, the bending power module includes:
the bracket is arranged above the second base;
the hydraulic cylinder is arranged at the top of the bracket;
the top of the telescopic rod is connected to the end part of a piston rod of the hydraulic cylinder, and the bottom of the telescopic rod is hinged to the top of the supporting plate.
Optionally, the sliding rail is installed on the bracket through a supporting block.
Optionally, the test component is a clamp pipe assembly.
Compared with the prior art, the invention has the following technical effects:
According to the clamp bending test device based on the vibration physical field, the bending power module drives the loading module to apply bending moment to the clamp pipeline assembly; the driving motor of the driving mechanism drives the gear transmission group to change the bending direction of the assembly, so that after a certain direction bending cycle test of the test clamp assembly is realized, the bending direction is automatically changed, and the reduction of the test efficiency due to manual disassembly and adjustment of the direction is avoided; simulating the real working environment of the clamp through vibration equipment of a vibration mechanism; under the same test, not only can carry out vibration test to clamp test assembly simultaneously in bending fatigue environment test, change the rotation direction moreover and need not to dismantle the equipment again, only drive the gear rotation test assembly through driving motor can to test result precision and test efficiency have effectively been improved, the practicality is extremely strong.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a test assembly in a clamp bending fatigue test;
FIG. 2 is a schematic structural view of a clamp bending test device based on a vibrating physical field according to the present invention;
FIG. 3 is a side view of the clamp bending test device based on a vibrating physical field of the present invention;
FIG. 4 is a schematic diagram of the loading module in the clamp bending test device based on the vibration physical field;
Wherein, the reference numerals are as follows:
01-clamping hoop; 02. 03-linker; 04-sealing ring; 05-a filler neck; 06-blocking; 07. 08-conduit; 09. 010-blanking cover; 011-ear;
1-a second base; 2-driving a motor; 3-a first base; 4-a drive gear; 5-a bracket; 6-a hydraulic cylinder; 7-a telescopic rod; 8-a spring; 9-loading a connecting rod; 10-clamping; 11-a linkage gear set; 12-a spring; 13-a vibration motor; 14-a motor base; 15-wabble-seat bearing; 16-a test bed; 17-supporting blocks; 18-a slider; 19-sliding rails; 20-supporting plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a clamp bending test device based on a vibration physical field, which not only can carry out vibration test on a clamp test assembly in bending fatigue environment test, but also can change the rotation direction without disassembling and assembling again, and the precision of test results and the test efficiency are improved effectively.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Embodiment one:
As shown in fig. 2-4, the present embodiment provides a clamp bending test device based on a vibration physical field, which mainly includes a test module, a bending power module and a loading module. The bending power module is hinged with the loading module; the driving mechanism and the vibrating mechanism in the test module are fixedly connected with the test base; during test, the vibration mechanism drives the test base and the test assembly to vibrate, the driving mechanism controls the test assembly to rotate, and the bending power module drives the loading module and the test assembly to reciprocate up and down, so that the test process is completed.
In this embodiment, as shown in fig. 2-4, the test module mainly includes a driving mechanism, a vibration mechanism, and a test base. Wherein:
The driving mechanism comprises a driving motor 2, a driving gear 4 and a linkage gear set 11; when the driving motor 2 works, the driving gear 4 and the linkage gear set 11 are driven to rotate, so that the function of driving the test assembly to rotate is realized. Wherein, the linkage gear set 11 preferably comprises at least two linkage gears, and the gears are meshed with each other for transmission; and one or more groups of test assemblies are respectively arranged on each linkage gear, so that the fastening reliability of the clamping hoop in the groups of test assemblies can be accurately tested at the same time, and the testing efficiency is greatly improved.
The test base includes a test stand 16, a spring 12, a second base 1 and a plurality of belt seat bearings 15.
The vibration mechanism includes a vibration motor 13 and a motor base 14. The motor base 14 is fixedly connected with the test bed 16 and the vibration motor 13. When the vibration motor 13 works, the test bed 16 connected with the motor base 14 is driven to vibrate, so that the test assembly fixed by the belt seat bearing 15 is driven to vibrate, and the function of vibration test of the test assembly is realized. The vibration motor 13 is an existing vibration device, and specific working parameters, such as vibration frequency, can be adjusted according to actual test requirements.
In this embodiment, as shown in fig. 2-4, the bending power module includes a first base 3, a bracket 5, a hydraulic cylinder 6, and a telescopic rod 7. The loading module comprises a supporting block 17, a sliding block 18, a sliding rail 19, a supporting plate 20, a spring 8, a loading connecting rod 9 and a clamp 10. The telescopic link 7 is articulated with the top of backup pad 20, and the bottom fixed connection of spring 8 and backup pad 20 is passed through to the top of loading connecting rod 9, and the bottom of loading connecting rod 9 is fixed connection with anchor clamps 10. To match the number of test assemblies, a plurality of clamps 10 may be mounted side by side on the load link 9. The support block 17 is fixedly connected with the slide rail 19, the slide block 18 is fixedly connected with the support plate 20, and the slide block 18 is slidably mounted on the slide rail 19. When the hydraulic cylinder 6 starts to operate, the telescopic rod 7 connected with the telescopic rod of the hydraulic cylinder 6 reciprocates up and down, so that the supporting plate 20 and the sliding block 18 are driven to reciprocate up and down along the sliding rail 19, the spring 8 connected with the supporting plate 20 and the loading connecting rod 9 connected with the other end of the spring 8 reciprocate up and down, and finally, bending moment reciprocating up and down is applied to the test assembly through the clamp 10, so that the function of bending fatigue resistance test of the test assembly is realized. Wherein, the sliding rail and the sliding block component play a guiding role on the reciprocating motion of the supporting plate, so that the loading precision is convenient to improve.
In this embodiment, the test component is preferably a clamp pipe assembly. Referring to fig. 1, the structure of a clamp pipe assembly in the conventional clamp bending fatigue test method comprises a clamp 01, a pipe 07 and a pipe 08, wherein the connection ends of the pipe 07 and the pipe 08 are respectively provided with a joint 02 and a joint 03, and the clamp 01 is arranged at the butt joint of the joint 02 and the joint 03 to connect the two pipes. Wherein, a sealing ring 04 is also arranged between the clamp 01 and the guide pipe; the outer end of the conduit 07 is further provided with a blanking cover 09, a filler neck 05 and a plug 06 in sequence, and the outer end of the conduit 08 is further provided with a blanking cover 010 and an ear piece 011 in sequence. In this embodiment, the clip pipe assembly preferably adopts the connection structure of the clip 01 and the pipes 07 and 08 shown in fig. 1, and the other structures shown in fig. 1 can be selected and modified according to specific test requirements, which will not be described herein.
In the embodiment, a hydraulic cylinder applies longitudinal shear stress to one end of a clamp fastening pipeline; the bending direction of the pipeline is changed through the gear transmission group, so that the disassembly and assembly are not required, and the accuracy of test results is effectively improved; the clamp real working environment (such as an aircraft pipeline working environment) is simulated through the vibration equipment, the test reliability is improved, the clamp test assembly can be subjected to vibration test simultaneously in bending fatigue environment test, and the clamp test assembly can also be subjected to accurate test of fastening reliability simultaneously, so that the test efficiency is greatly improved.
It should be noted that it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (1)
1. Clamp bending test device based on vibration physical field, characterized by comprising:
The test module comprises a driving mechanism, a vibrating mechanism and a test base, wherein the driving mechanism is used for controlling a test assembly to rotate, and the test assembly is a clamp pipeline assembly; the test base comprises a first base and a test bed arranged above the first base, and the driving mechanism is arranged on the test bed; the driving mechanism comprises a driving motor, a driving gear connected with the driving motor and a linkage gear set in transmission connection with the driving gear, and the test assembly is arranged on the linkage gear set; the vibration mechanism comprises a vibration motor and is used for driving the test assembly to vibrate; a motor base is arranged on one side of the test bed, and the vibration motor is arranged on the motor base; a spring is arranged between the test bed and the first base; each gear in the corresponding linkage gear set on the test bed is fixedly provided with a bearing with a seat, and the gear is in running fit with the corresponding bearing with a seat;
A loading module comprising a clamp for applying a bending moment to the test assembly under the drive of a loading force; the loading module further comprises a supporting plate, a loading connecting rod and a guiding mechanism, wherein the top end of the supporting plate is connected with the bending power module, the top end of the loading connecting rod is connected to the bottom end of the supporting plate through a spring, the bottom end of the loading connecting rod is connected with the clamps, the loading connecting rod is provided with a plurality of clamps side by side, the guiding mechanism comprises a sliding rail and a sliding block which is slidably mounted on the sliding rail, the sliding rail is fixedly arranged, and one side of the supporting plate is provided with the sliding block;
The bending power module is connected with the loading module and used for driving the loading module and the test assembly to reciprocate up and down, the bending power module comprises a second base, a hydraulic cylinder and a telescopic rod, a support is arranged above the second base, the hydraulic cylinder is arranged at the top of the support, the top end of the telescopic rod is connected with the end part of a piston rod of the hydraulic cylinder, the bottom end of the telescopic rod is hinged to the top end of the supporting plate, and the sliding rail is arranged on the support through a supporting block; when the hydraulic cylinder starts to operate, the hydraulic cylinder drives the telescopic rod to reciprocate up and down, so that the supporting plate and the sliding block are driven to reciprocate up and down along the sliding rail, the spring and the loading connecting rod connected with the supporting plate reciprocate up and down, and finally, bending moment reciprocating up and down is applied to the test assembly through the clamp, so that bending fatigue resistance test of the test assembly is realized.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011499897.9A CN112666024B (en) | 2020-12-18 | 2020-12-18 | Clamp bending test device based on vibration physical field |
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| CN202011499897.9A CN112666024B (en) | 2020-12-18 | 2020-12-18 | Clamp bending test device based on vibration physical field |
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| CN112666024B true CN112666024B (en) | 2024-08-09 |
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| CN113466037B (en) * | 2021-06-16 | 2023-08-11 | 中国航发沈阳发动机研究所 | Integrated tester for dynamic and static mechanical properties of clamps and its application method |
| CN113567878B (en) * | 2021-07-08 | 2022-11-08 | 国网福建省电力有限公司 | Portable intelligent pressurized primary through-flow test device |
| CN114459746B (en) * | 2022-02-15 | 2025-05-30 | 上海锐淅医学科技有限公司 | Implant fatigue testing equipment |
| CN114459715B (en) * | 2022-02-15 | 2025-05-30 | 上海锐淅医学科技有限公司 | Implant fatigue test vibration drive device and test equipment |
| CN114459747B (en) * | 2022-02-15 | 2025-05-30 | 上海锐淅医学科技有限公司 | An environmental simulation type implant fatigue testing device |
| CN114754958B (en) * | 2022-04-25 | 2024-11-22 | 深圳市芯愚公半导体有限公司 | An IGBT module testing platform |
| CN116558748A (en) * | 2023-06-28 | 2023-08-08 | 厦门君德医药科技有限公司 | Fatigue test machine for elastomer |
| CN117405533B (en) * | 2023-12-14 | 2024-02-13 | 天津航天瑞莱科技有限公司 | Clamp type joint deflection test device |
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