Corrugated pipe fatigue test device

Abstract

The application discloses a corrugated pipe fatigue test device, and belongs to the technical field of corrugated pipe test. The corrugated pipe fatigue test device comprises a test assembly, a swing assembly and a driving assembly. The test assembly comprises two test wheels, the axes of the two test wheels are parallel to each other, the swing assembly comprises a first swing rod and a second swing rod connected to the corrugated pipe, and the driving assembly is in transmission connection with the first swing rod and the second swing rod to drive the first swing rod and the second swing rod to rotate. The rotation axes of the first swing rod and the second swing rod both extend along the axial direction of any test wheel, so that the first swing rod and the second swing rod drive the corrugated pipe to bend after abutting against the circumferential end face of the test wheel. The driving assembly is in transmission connection with the first swing rod and the second swing rod, so as to drive the first swing rod and the second swing rod to rotate simultaneously and synchronously drive the corrugated pipe to bend after abutting against the circumferential end face of the test wheel, and the test efficiency of the corrugated pipe fatigue test device is improved.

Claims

1. A bellows fatigue testing device, characterized in that, include: The test assembly includes two test wheels, the axes of which are parallel to each other; The oscillating assembly includes a first oscillating rod and a second oscillating rod connected to the bellows; A drive assembly is tractively connected to the first pendulum and the second pendulum to drive the first pendulum and the second pendulum to rotate; The rotation axis of the first pendulum and the rotation axis of the second pendulum both extend along the axial direction of either of the test wheels, so that the first pendulum and the second pendulum cause the bellows to bend after it comes into contact with the circumferential end face of the test wheel.

2. The bellows fatigue testing apparatus as described in claim 1, characterized in that, The rotation direction of the first pendulum is the same as the rotation direction of the second pendulum; or, The rotation direction of the first pendulum is opposite to that of the second pendulum.

3. The bellows fatigue testing apparatus as described in claim 1, characterized in that, The test assembly includes a first test wheel and a second test wheel. The swing assembly has a first state and a second state. In the first state, the bellows abuts against the first test wheel. In the second state, the bellows abuts against the second test wheel. or, In the first state, the bellows abuts against the first test wheel and the second test wheel; in the second state, the bellows abuts against the first test wheel and the second test wheel.

4. The bellows fatigue testing apparatus as described in claim 1, characterized in that, The drive assembly includes a drive motor, a first transmission structure, and a second transmission structure. The first transmission structure drives the drive motor and the first rocker arm, and the second transmission structure drives the drive motor and the second rocker arm; or... The drive assembly includes a first drive motor and a second drive motor. The first transmission structure drives the first drive motor and the first swing arm, and the second transmission structure drives the second drive motor and the second swing arm.

5. The bellows fatigue testing apparatus as described in claim 4, characterized in that, The first transmission structure includes a first driving member and at least one first driven member, wherein the first driving member and the first driven member are driven by gears or belts. The second transmission structure includes a second driving member and at least one second driven member, wherein the second driving member and the second driven member are driven by gears or belts.

6. The bellows fatigue testing apparatus as described in claim 5, characterized in that, The rotation axis of the first driving member is parallel to the rotation axis of the first driven member, and the rotation axis of the second driving member is parallel to the rotation axis of the second driven member. The first driving member and the first driven member are connected by gear transmission, and the sum of the number of the first driving member and the first driven member is either odd or even; the second driving member and the second driven member are connected by gear transmission, and the sum of the number of the second driving member and the second driven member is either odd or even. The first driving member and the first driven member are connected by a belt drive, with the belt wound in an open-end drive manner or in a cross-drive manner; the second driving member and the second driven member are connected by a belt drive, with the belt wound in an open-end drive manner or in a cross-drive manner.

7. The bellows fatigue testing apparatus as described in claim 5, characterized in that, The swing assembly includes a first swing shaft connected to the first swing arm and a second swing shaft connected to the second swing arm. The first swing shaft is connected to the first driven member of the final stage in the first transmission structure, and the second swing shaft is connected to the second driven member of the final stage in the second transmission structure. The axis of the first swing shaft and the axis of the second swing shaft are collinear or parallel to each other.

8. The bellows fatigue testing apparatus as described in claim 5, characterized in that, The bellows fatigue testing device further includes a mounting platform, the drive motor has an output shaft, the first driving member and the second driving member are connected to the output shaft, and the first transmission structure and the second transmission structure are located on opposite sides of the mounting platform along the axial direction of the output shaft; or... The first transmission structure and the second transmission structure are located on the same side of the mounting platform along the axial direction of the output shaft.

9. The bellows fatigue testing apparatus as described in claim 1, characterized in that, The corrugated pipe includes a first test section and a second test section. The test assembly also includes a fixed base. The first test section is connected to the fixed base and the first swing arm. The second test section is connected to the fixed base and the second swing arm. The first test section and the second test section are integrally formed or separately formed.

10. The bellows fatigue testing apparatus as described in claim 9, characterized in that, The test assembly includes a mounting component connected to the fixed base, the fixed base being located between the two test wheels, the two test wheels being detachably connected to the mounting component.

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