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CN-224216479-U - Be used for X ray CT normal position torsion experimental apparatus

CN224216479UCN 224216479 UCN224216479 UCN 224216479UCN-224216479-U

Abstract

The utility model relates to an in-situ torsion experimental device for X-ray CT, and belongs to the technical field of scientific instruments for in-situ torsion experiments for X-ray CT. The device comprises a driving assembly, a torque sensor and a clamp assembly, wherein two ends of a shaft of the torque sensor are respectively connected with the driving assembly and the clamp, the driving assembly comprises a motor, an outer shell, a worm wheel and a worm, the worm wheel and the worm are rotatably arranged in the outer shell, the worm wheel is meshed with the worm, the upper end of the worm wheel is connected with the lower end of the torque sensor through a key, and one end of the worm is connected with the output end of the motor. The driving assembly disclosed by the utility model is stable in transmission during experiments, has a self-locking function, is prevented from reversing, improves the detection accuracy, is compact in structure, has a large transmission ratio, is suitable for speed reduction, is low in noise and vibration, and effectively prevents influence on other works in a laboratory.

Inventors

  • TANG GUANGZE
  • MA YI

Assignees

  • 杭州微纳工场科技有限公司

Dates

Publication Date
20260508
Application Date
20250523

Claims (9)

  1. 1. The in-situ torsion experimental device for the X-ray CT is characterized by comprising a driving assembly (1), a torque sensor (2) and a clamp assembly (5), wherein two ends of the torque sensor (2) are respectively connected with the driving assembly (1) and the clamp assembly (5), the driving assembly (1) comprises a motor (11), an outer shell (15), a worm wheel (16) and a worm (17), the worm wheel (16) and the worm (17) are rotatably arranged in the outer shell (15), the worm wheel (16) is meshed with the worm (17), the upper end of the worm wheel (16) is connected with the lower end of the torque sensor (2) through a key, and one end of the worm (17) is connected with the output end of the motor (11).
  2. 2. An in-situ torsion experimental apparatus for X-ray CT as set forth in claim 1, wherein the motor (11) is a stepper motor.
  3. 3. An in-situ torsion experimental device for X-ray CT according to claim 1 or 2, wherein the driving assembly (1) further comprises a driving gear (12), a chain (13) and a driven gear (14), the driving gear (12) is connected with the output end of the motor (11) in a key way, the driving gear (12) is connected with the driven gear (14) through the chain (13), and the driven gear (14) is connected with one end of the worm (17) extending out of the outer shell (15) in a key way.
  4. 4. An in-situ torsion experimental device for X-ray CT according to claim 1 or 2 further comprising a mounting frame (3), wherein the lower end of the mounting frame (3) is connected to the upper end of the outer housing (15), the mounting frame (3) is connected to the outer housing of the torque sensor (2), and the mounting frame (3) is mounted to the clamp assembly (5).
  5. 5. The device for in-situ torsion of X-ray CT (computed tomography) according to claim 4, wherein the clamp assembly (5) comprises an upper clamp (51), a lower clamp (52), a baffle plate (53) and a sleeve (54), the upper end of the torque sensor (2) is connected with the lower part of the lower clamp (52), an upper mounting groove (521) is formed in the upper part of the lower clamp (52), the lower end of the sample (4) is arranged in the mounting groove (521), the baffle plate (53) is arranged on the side face of the mounting groove (521), the baffle plate (53) is detachably connected with the lower clamp (52), the lower end of the sample (4) is clamped and fixed, the sleeve (54) is sleeved on the outer side of the sample (4), two ends of the sleeve (54) are respectively connected with the upper clamp (51) and the mounting frame (3), a mounting through hole (511) is formed in the middle of the upper clamp (51), and the upper end of the sample (4) is inserted into the mounting through hole (511).
  6. 6. An in situ torsion experimental apparatus for X-ray CT as set forth in claim 5, wherein the sleeve (54) is made of a transparent material.
  7. 7. The device for X-ray CT in-situ torsion experiment according to claim 5, wherein the clamp assembly (5) further comprises screws (55), the upper portion of the lower clamp (52) is arranged on the outer side of the mounting frame (3), symmetrically arranged through holes are formed in two sides of the baffle plate (53), two symmetrically arranged threaded holes are formed in the side face of the lower clamp (52), the threaded holes are formed in two sides of the mounting groove (521), the through holes of the baffle plate (53) are in one-to-one correspondence with the threaded holes of the lower clamp (52), and the screws (55) penetrate through the through holes of the baffle plate (53) to be in threaded connection with the corresponding threaded holes of the lower clamp (52).
  8. 8. An in-situ torsion experimental device for X-ray CT according to claim 5, wherein the upper end of the mounting frame (3) has upper protrusions (31) uniformly circumferentially arranged, the lower end of the upper clamp (51) has lower protrusions (512) uniformly circumferentially arranged, two ends of the sleeve (54) are respectively processed with an upper groove (542) and a lower groove (541), the lower protrusions (512) are inserted into the corresponding upper grooves (542), and the upper protrusions (31) are inserted into the corresponding lower grooves (541).
  9. 9. An in situ torsion experimental apparatus for X-ray CT as set forth in claim 8, wherein the upper and lower grooves (542, 541) are disposed crosswise.

Description

Be used for X ray CT normal position torsion experimental apparatus Technical Field The utility model relates to a torsion experimental device, and belongs to the technical field of scientific instruments for X-ray CT in-situ torsion experiments. Background X-ray CT is an analytical instrument for non-destructive inspection of sub-micron to millimeter scale 3-dimensional spatial structures within materials. The X-ray CT is combined with different material mechanics experiment machines, so that the germination and expansion processes of internal defects of the material under different stress states and temperatures can be observed in situ in a nondestructive and dynamic manner, and an experiment observation basis is provided for researching and analyzing the failure behavior and mechanism of the material under the service working condition and predicting the service life. Torsion is a common deformation and stress state, and the observation of failure behavior and process of materials under the torsion deformation and stress state has important significance for material optimization, torsion structure design and component life prediction. For example, the utility model discloses a torsion test device for a high-strength composite material pipe, the publication number of which is CN212379203U, and the technical scheme of the torsion test device discloses that a pipe with two ends positioned on two frame bodies is twisted, so that a torsion test is performed. But the transmission device adopts the connection of driving equipment, a driving gear, a driven gear, a driving rod and a right side frame body, has poor transmission stability and is easy to reverse, thereby affecting the detection accuracy. Therefore, it is needed to provide an in-situ torsion experimental device for X-ray CT to solve the above technical problems. Disclosure of utility model To address the above-described problems, an in-situ torsion experiment apparatus for X-ray CT is provided, a brief overview of which is presented below in order to provide a basic understanding of certain aspects of the present utility model. It should be understood that this summary is not an exhaustive overview of the utility model. It is not intended to identify key or critical elements of the utility model or to delineate the scope of the utility model. The technical scheme of the utility model is as follows: The X-ray CT in-situ torsion experimental device comprises a driving assembly, a torque sensor and a clamp assembly, wherein two ends of a shaft of the torque sensor are respectively connected with the driving assembly and the clamp, the driving assembly comprises a motor, an outer shell, a worm wheel and a worm, the worm wheel and the worm are rotatably arranged in the outer shell, the worm wheel is meshed with the worm, the upper end of the worm wheel is connected with the lower end of the torque sensor through a key, and one end of the worm is connected with the output end of the motor. Preferably, the motor is a stepping motor. Preferably, the driving assembly further comprises a driving gear, a chain and a driven gear, wherein the driving gear is connected with the output end of the motor in a key way, the driving gear is connected with the driven gear through the chain, and the driven gear is connected with one end of the worm, which extends out of the outer shell in a key way. The torque sensor is characterized by further comprising a mounting frame, wherein the lower end of the mounting frame is connected with the upper end of the outer shell, the lower part of the mounting frame is connected with the outer shell of the torque sensor, and the mounting frame is mounted with the clamp assembly. Preferably, the fixture assembly comprises an upper fixture, a lower fixture, a baffle and a sleeve, wherein the upper end of the torque sensor is connected with the lower part of the lower fixture by a key, the upper part of the lower fixture is provided with an upper installation groove, the lower end of the sample is arranged in the installation groove, the baffle is arranged on the side surface of the installation groove and is detachably connected with the lower fixture, the lower end of the sample is clamped and fixed, the sleeve is sleeved on the outer side of the sample, two ends of the sleeve are respectively connected with the upper fixture and the installation frame, an installation through hole is processed in the middle of the upper fixture, and the upper end of the sample is inserted into the installation through hole for internal fixation. Preferably, the sleeve is made of transparent materials. Preferably, the fixture assembly further comprises screws, the upper part of the lower fixture is arranged on the outer side of the mounting frame, through holes which are symmetrically arranged are processed on the two sides of the baffle plate, two symmetrically arranged threaded holes are formed in the side face of the lower fixture, the threaded hole