In-situ testing equipment for testing micromechanical properties of material in multi-load and multi-physical field coupled condition
First Claim
1. An in-situ testing equipment configured for testing micromechanical properties of a material in a multi-load and multi-physical field coupled condition, comprising a frame supporting module, a tension/compression-low cycle fatigue module, a torsioning module (21), a three-point bending module (6), an impressing module (33), a thermal field and magnetic field application module (34), an in-situ observation module (32) and a clamp body module (22), wherein:
- the frame supporting module provides a structural support for the whole testing equipment;
the tension/compression-low cycle fatigue module is arranged at upper and lower ends of the testing equipment;
the torsioning module (21) is directly arranged at a front end of the tension/compression-low cycle fatigue module;
the three-point bending module (6), the impressing module (33) and the thermal field and magnetic field application module (34) are disposed on a support post at one side of the whole testing equipment through a common replacing component;
the in-situ observation module is disposed on another support post at the other side of the testing equipment;
the clamp body module is connected to a front segment of the torsioning module, so as to clamp a test piece;
an overall structure of the testing equipment is configured in a vertically symmetrical arrangement achieved by using four support posts;
two identical servo hydraulic cylinders (10) and two torsioning modules (21) are located at the upper and the lower ends of the testing equipment respectively and are used to perform a symmetrical tension/compression test and a symmetrical torsion test on the test piece (23) positioned centrally, to ensure that the geometrical center of the test piece (23) is maintained stationary during tension/compression and torsion tests, and to facilitate an in-situ dynamic observation on performances including deformation and damage of the material during the test;
the testing equipment is capable of realizing applications of five different types of loads including tension/compression, low cycle fatigue, torsion, bending and impressing, to perform an intensive study on micromechanical properties of the material in the multi-load and multi-physical field coupled condition by using built-in electric, thermal and magnetic application modules and the in-situ observation module, and to acquire relations between deformation behavior, mechanism of damage, performance weakening of the material, applied loads and material properties;
the tension/compression-low cycle fatigue module comprises the servo hydraulic cylinders (10) and a hydraulic cylinder fixing sleeve (13);
by means of a mounting flange, the servo hydraulic cylinder (10) and the hydraulic cylinder fixing sleeve (13) mate with each other with a tolerance between an axle of the servo hydraulic cylinder and a hole of the hydraulic cylinder fixing sleeve, so as to ensure mounting accuracy, and are fastened by a second screw (11) and a second resilient washer (12);
the hydraulic cylinder fixing sleeve (13) is rigidly fixed to the upper and lower support plates (7, 103) through a third screw (14) and a third resilient washer (15);
the tension/compression-low cycle fatigue module utilizes two high-accuracy hydraulic cylinders (10) as a power source and accurately controls a displacement in the tension/compression low cycle fatigue process through controlling an amount of oil flowing into the servo hydraulic cylinders (10) and flow direction of the oil through a multi-channel servo controller; and
the torsioning module (21) comprises a torsion servo motor (44), a worm gear reducer and a ball spline (47);
an output shaft of the torsion servo motor (44) is connected with a worm shaft (40) through a first key (42);
a worm (41) and the worm shaft (40) are connected with each other through a key;
a second sleeve (43) is used to maintain an axial position of an outer ring of a rolling bearing;
the worm shaft (40) is supported within a mounting hole of a worm housing (35) through a first rolling bearing (38);
an outer spline housing of the ball spline (47) is supported within the mounting hole of the worm housing (35) through a second sleeve (49) and a second rolling bearing (46);
a worm wheel (50) is connected to the outer spline housing of the ball spline (47) through a second key (52);
one end of the ball spline (47) is connected with a rod of the servo hydraulic cylinder (10) through a coupling sleeve (8) and an expansion sleeve (9), and the other end thereof is connected to the clamp body module (22) through an expansion sleeve;
the torsioning module (21) utilizes the servo motor as a power source, and a torsion angle is output to a ball spline shaft connected with the rod of the hydraulic cylinder after reduction in speed via a worm gear having a large one-stage reduction gear ratio, so as to drive the rod and the clamp body module located at a front end to rotate as a whole.
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Accused Products
Abstract
An in-situ testing equipment for testing micromechanical properties of a material in a multi-load and multi-physical field coupled condition is disclosed. The equipment comprises a frame supporting module, a tension/compression-low cycle fatigue module, a torsioning module (21), a three-point bending module (6), an impressing module (33), a thermal field and magnetic field application module (34), an in-situ observation module (32) and a clamp body module (22). The testing equipment is capable of realizing applications of five different types of loads including tension/compression, low cycle fatigue, torsion, bending and impressing, performing an intensive study on micromechanical properties of the material in the multi-load and multi-physical field coupled condition by using built-in electric, thermal and magnetic application modules and the in-situ observation module, and acquiring relations between deformation behavior, mechanism of damage, performance weakening of the material, applied loads and material properties.
13 Citations
12 Claims
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1. An in-situ testing equipment configured for testing micromechanical properties of a material in a multi-load and multi-physical field coupled condition, comprising a frame supporting module, a tension/compression-low cycle fatigue module, a torsioning module (21), a three-point bending module (6), an impressing module (33), a thermal field and magnetic field application module (34), an in-situ observation module (32) and a clamp body module (22), wherein:
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the frame supporting module provides a structural support for the whole testing equipment; the tension/compression-low cycle fatigue module is arranged at upper and lower ends of the testing equipment; the torsioning module (21) is directly arranged at a front end of the tension/compression-low cycle fatigue module; the three-point bending module (6), the impressing module (33) and the thermal field and magnetic field application module (34) are disposed on a support post at one side of the whole testing equipment through a common replacing component; the in-situ observation module is disposed on another support post at the other side of the testing equipment; the clamp body module is connected to a front segment of the torsioning module, so as to clamp a test piece; an overall structure of the testing equipment is configured in a vertically symmetrical arrangement achieved by using four support posts; two identical servo hydraulic cylinders (10) and two torsioning modules (21) are located at the upper and the lower ends of the testing equipment respectively and are used to perform a symmetrical tension/compression test and a symmetrical torsion test on the test piece (23) positioned centrally, to ensure that the geometrical center of the test piece (23) is maintained stationary during tension/compression and torsion tests, and to facilitate an in-situ dynamic observation on performances including deformation and damage of the material during the test; the testing equipment is capable of realizing applications of five different types of loads including tension/compression, low cycle fatigue, torsion, bending and impressing, to perform an intensive study on micromechanical properties of the material in the multi-load and multi-physical field coupled condition by using built-in electric, thermal and magnetic application modules and the in-situ observation module, and to acquire relations between deformation behavior, mechanism of damage, performance weakening of the material, applied loads and material properties; the tension/compression-low cycle fatigue module comprises the servo hydraulic cylinders (10) and a hydraulic cylinder fixing sleeve (13);
by means of a mounting flange, the servo hydraulic cylinder (10) and the hydraulic cylinder fixing sleeve (13) mate with each other with a tolerance between an axle of the servo hydraulic cylinder and a hole of the hydraulic cylinder fixing sleeve, so as to ensure mounting accuracy, and are fastened by a second screw (11) and a second resilient washer (12);
the hydraulic cylinder fixing sleeve (13) is rigidly fixed to the upper and lower support plates (7, 103) through a third screw (14) and a third resilient washer (15);
the tension/compression-low cycle fatigue module utilizes two high-accuracy hydraulic cylinders (10) as a power source and accurately controls a displacement in the tension/compression low cycle fatigue process through controlling an amount of oil flowing into the servo hydraulic cylinders (10) and flow direction of the oil through a multi-channel servo controller; andthe torsioning module (21) comprises a torsion servo motor (44), a worm gear reducer and a ball spline (47);
an output shaft of the torsion servo motor (44) is connected with a worm shaft (40) through a first key (42);
a worm (41) and the worm shaft (40) are connected with each other through a key;
a second sleeve (43) is used to maintain an axial position of an outer ring of a rolling bearing;
the worm shaft (40) is supported within a mounting hole of a worm housing (35) through a first rolling bearing (38);
an outer spline housing of the ball spline (47) is supported within the mounting hole of the worm housing (35) through a second sleeve (49) and a second rolling bearing (46);
a worm wheel (50) is connected to the outer spline housing of the ball spline (47) through a second key (52);
one end of the ball spline (47) is connected with a rod of the servo hydraulic cylinder (10) through a coupling sleeve (8) and an expansion sleeve (9), and the other end thereof is connected to the clamp body module (22) through an expansion sleeve;
the torsioning module (21) utilizes the servo motor as a power source, and a torsion angle is output to a ball spline shaft connected with the rod of the hydraulic cylinder after reduction in speed via a worm gear having a large one-stage reduction gear ratio, so as to drive the rod and the clamp body module located at a front end to rotate as a whole. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification