Torsional fatigue test device

Abstract

The utility model relates to the technical field of torsion tests, and discloses a torsion fatigue test device which comprises a shell, the top end of the shell is connected with a protective cover in a sliding mode, the left end and the right end of the shell are fixedly connected with connecting shells, the left end and the right end of the protective cover are fixedly connected with inserting blocks, and the interiors of the connecting shells are fixedly connected with fixing shells. An inner shell is fixedly connected to the interior of the fixing shell, a limiting ring is slidably connected to the interior of the inner shell, a thrust spring is fixedly connected to the end, away from the connecting shell, of the limiting ring, and a mounting column is fixedly connected to the interior of the limiting ring. According to the utility model, the inserting block is inserted into the connecting shell, so that the thrust spring pushes the mounting column to move towards the connecting shell, the mounting column slides into the connecting shell, a plurality of bolts do not need to be screwed, the maintenance and repair process of equipment is facilitated, the downtime is reduced, the working efficiency is improved, and meanwhile, when the protective shell is damaged, the protective shell can be replaced in time.

Description

Technical Field

[0001] The utility model relates to the technical field of torsion testing, in particular to a torsion fatigue testing device. Background Art

[0002] Torsion fatigue test equipment is an instrument used to test the fatigue performance of materials or products. It can apply continuous torsion load to the specimen to evaluate its fatigue behavior and life under specific conditions. This type of test equipment is widely used in medical devices, automotive industry, aerospace, machinery manufacturing and other fields, and is crucial to ensure product quality and increase actual service life.

[0003] The torsional fatigue test device has a protective shell that can be easily disassembled, which facilitates the maintenance and overhaul of the equipment, reduces downtime, and improves work efficiency. At the same time, when the protective shell is damaged, it can be replaced in time.

[0004] According to the test standards and equipment requirements, adjust the fixture to ensure that the specimen is clamped correctly. According to the test standards and equipment requirements, adjust the fixture to ensure that the specimen is clamped correctly. Monitor and record test data such as torque, angular displacement, strain, etc. in real time to ensure the normal operation of the data acquisition system to obtain accurate and reliable test results.

[0005] Under the existing technology, the protective shell is relatively difficult to disassemble. When the equipment is maintained and repaired, multiple bolts need to be turned to effectively disassemble it, which prolongs the equipment downtime and affects production efficiency. At the same time, it is time-consuming and labor-intensive, reducing work efficiency. Utility Model Content

[0006] The utility model aims to improve the relatively troublesome situation in the prior art that the protective shell needs to be replaced in order to prevent the protective shell from being damaged, and thus proposes a torsional fatigue testing device.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a torsional fatigue testing device, including an outer shell, a protective cover is slidably connected to the top of the outer shell, the left and right ends of the outer shell are fixedly connected to a connecting shell, the left and right ends of the protective cover are fixedly connected to plug blocks, the interior of the connecting shell is fixedly connected to a fixed shell, the interior of the fixed shell is fixedly connected to an inner shell, the interior of the inner shell is slidably connected to a limiting ring, the end of the limiting ring away from the connecting shell is fixedly connected to a thrust spring, and the interior of the limiting ring is fixedly connected to a mounting column.

[0008] As a further description of the above technical solution:

[0009] The right end of the shell is fixedly connected with an operating table, and the rear end of the shell is fixedly connected with a driving mechanism.

[0010] As a further description of the above technical solution:

[0011] The driving mechanism includes a support frame, the front end of the support frame is fixedly connected to the rear end of the shell, the front end of the support frame is fixedly connected to a reciprocating motor, the output end of the reciprocating motor is fixedly connected to a gear, the top end of the shell is fixedly connected to a connecting block, the inside of the connecting block is slidably connected to a push rod, the left end of the push rod is fixedly connected to a fixing plate, the outside of the fixing plate is fixedly connected to a movable clamping column, and the top end of the shell is fixedly connected to a rotating clamping column.

[0012] As a further description of the above technical solution:

[0013] The top end of the shell is fixedly connected to a limiting square plate, and the outer portion of the push rod is slidably connected to the inner portion of the limiting square plate.

[0014] As a further description of the above technical solution:

[0015] The bottom end of the movable clamping column is fixedly connected to the inside of the shell, and the outside of the movable clamping column is fixedly connected to two brush mechanisms.

[0016] As a further description of the above technical solution:

[0017] The brush mechanism includes a brush shell, the outside of the brush shell is fixedly connected to the outside of the movable clamping column, the inside of the brush shell is slidably connected to a limiting plate, the top end of the limiting plate is fixedly connected to an outward push spring, the other end of the outward push spring is fixedly connected to the inside of the brush shell, and the bottom end of the limiting plate is fixedly connected to the brush column.

[0018] As a further description of the above technical solution:

[0019] One end of the thrust spring away from the limiting ring is fixedly connected to the inside of the inner shell, and the outside of the mounting column is slidably connected to the inside of the plug block.

[0020] As a further description of the above technical solution:

[0021] The outside of the limiting ring is fixedly connected with a sliding block, the inside of the inner shell is provided with a sliding groove, and the outside of the sliding block is slidably connected to the inside of the sliding groove.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, the insert block is inserted into the interior of the connecting shell through the fixed shell, the limit ring, the thrust spring and other structures, so that the thrust spring pushes the installation column to move toward the connecting shell, and the installation column slides into the interior of the connecting shell without screwing a plurality of bolts, which facilitates the maintenance and repair process of the equipment, reduces downtime, and improves work efficiency. At the same time, when the protective shell is damaged, it can be replaced in time.

[0024] 2. In the utility model, through the reciprocating motor, gears, connecting blocks and other structures, the reciprocating motor drives the gear, and the gear rotation drives the push rod to move, so that the push rod drives the movable clamping column to move, and the movable clamping column drives the brush mechanism to move, so that the movable clamping column can adjust the clamping distance, and the brush mechanism can clean the workbench, making the interior clean and tidy. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of a torsional fatigue test device proposed by the utility model;

[0026] Figure 2 This is a schematic diagram of an insert block in a torsional fatigue test device proposed by the utility model;

[0027] Figure 3 This is a cross-sectional view of an inner shell in a torsional fatigue testing device proposed by the utility model;

[0028] Figure 4 This is a cross-sectional view of a fixed shell in a torsional fatigue test device proposed by the utility model;

[0029] Figure 5 This is a schematic diagram of a torsional fatigue test device proposed by the utility model;

[0030] Figure 6 The utility model is a cross-sectional view of a brush shell in a torsional fatigue testing device.

[0031] Legend:

[0032] 1. Outer shell; 2. Protective cover; 3. Connecting shell; 4. Insert block; 5. Fixed shell; 6. Inner shell; 7. Limiting ring; 8. Thrust spring; 9. Mounting column; 10. Brush mechanism; 1001. Brush shell; 1002. Limiting plate; 1003. Outward push spring; 1004. Brush column; 11. Operating table; 12. Driving mechanism; 1201. Support frame; 1202. Reciprocating motor; 1203. Gear; 1204. Connecting block; 1205. Push rod; 1206. Fixed plate; 1207. Movable clamping column; 1208. Rotating clamping column; 1209. Limiting square plate; 13. Sliding block; 14. Sliding groove. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Reference Figure 1 - Figure 3 The utility model provides an embodiment: a torsional fatigue test device, including a shell 1, the top of the shell 1 is slidably connected with a protective cover 2, the protective cover 2 prevents the internal laboratory from popping out of the outside after the internal clamp collapses, thereby protecting the safety of the staff during the test, the left and right sides of the shell 1 are fixedly connected with a connecting shell 3, the left and right ends of the protective cover 2 are fixedly connected with an insert block 4, the inside of the connecting shell 3 is fixedly connected with a fixed shell 5, the inside of the fixed shell 5 is fixedly connected with an inner shell 6, the inside of the inner shell 6 is slidably connected with a limiting ring 7, the end of the limiting ring 7 away from the connecting shell 3 is fixedly connected with a thrust spring 8, the inside of the limiting ring 7 is fixedly connected with a mounting column 9, the insert block 4 is inserted into the inside of the connecting shell 3, so The thrust spring 8 pushes the mounting column 9, the right end of the outer shell 1 is fixedly connected to the operating table 11, the rear end of the outer shell 1 is fixedly connected to the driving mechanism 12, the end of the thrust spring 8 away from the limit ring 7 is fixedly connected to the inside of the inner shell 6, the outside of the mounting column 9 is slidably connected to the inside of the plug block 4, the outside of the limit ring 7 is fixedly connected to the sliding block 13, the inside of the inner shell 6 is provided with a sliding groove 14, the outside of the sliding block 13 is slidably connected to the inside of the sliding groove 14, the mounting column 9 is pressed, the mounting column 9 drives the limit ring 7 to move toward the outer shell 1, so that the limit ring 7 drives the sliding block 13 to slide in the sliding groove 14, so that the sliding block 13 slides from the shorter groove of the sliding groove 14 into the longer groove, thereby completing the telescopic regulation of the mounting column 9.

[0035] Reference Figure 4 - Figure 6The driving mechanism 12 includes a support frame 1201, the front end of the support frame 1201 is fixedly connected to the rear end of the housing 1, the front end of the support frame 1201 is fixedly connected to a reciprocating motor 1202, the output end of the reciprocating motor 1202 is fixedly connected to a gear 1203, the top of the housing 1 is fixedly connected to a connecting block 1204, the inside of the connecting block 1204 is slidably connected to a push rod 1205, the left end of the push rod 1205 is fixedly connected to a fixed plate 1206, and the outside of the fixed plate 1206 is fixedly connected to a movable clamp The reciprocating motor 1202 is started, and the reciprocating motor 1202 drives the gear 1203 to rotate, so that the gear 1203 drives the push rod 1205 to move to the left, so that the push rod 1205 pushes the movable clamping column 1207 to a suitable position through the fixed plate 1206, and the test object is clamped inside the rotating clamping column 1208 and the movable clamping column 1207, so as to adapt to the length of various clamped objects. The top of the housing 1 is fixedly connected with the rotating clamping column 1208, and the top of the housing 1 is fixedly connected A limiting square plate 1209 is provided, and the outside of the push rod 1205 is slidably connected to the inside of the limiting square plate 1209. The limiting square plate 1209 limits the push rod 1205 to prevent the push rod 1205 from detaching. The bottom end of the movable clamping column 1207 is fixedly connected to the inside of the housing 1. The outside of the movable clamping column 1207 is fixedly connected to two brush mechanisms 10. The brush mechanism 10 includes a brush shell 1001. The outside of the brush shell 1001 is fixedly connected to the outside of the movable clamping column 1207. The internal sliding connection is to the limit plate 1002, and the top of the limit plate 1002 is fixedly connected with an outward push spring 1003, and the outward push spring 1003 pushes the brush column 1004 to fit the top of the workbench, so as to prevent the debris after collapse from hurting the human body surface, and the other end of the outward push spring 1003 is fixedly connected to the inside of the brush shell 1001, and the brush shell 1001 limits the outward push spring 1003 to prevent the outward push spring 1003 from popping out, and the bottom end of the limit plate 1002 is fixedly connected with the brush column 1004.

[0036] Working principle: Press the installation column 9, the installation column 9 drives the limit ring 7 to move toward the shell 1, so that the limit ring 7 drives the sliding block 13 to slide inside the sliding groove 14, so that the sliding block 13 slides from the shorter groove of the sliding groove 14 into the longer groove. At this time, the thrust spring 8 pushes the installation column 9 to slide into the inside of the plug block 4, completing the fixation of the connecting shell 3 and the plug block 4, facilitating the protective shell, facilitating the maintenance and repair process of the equipment, reducing downtime, and improving work efficiency. At the same time, when the protective shell is damaged, it can be replaced in time to start the reciprocating motor 1202, the reciprocating motor 1 202 The transmission gear 1203 rotates, so that the gear 1203 drives the push rod 1205 to move to the left, so that the push rod 1205 pushes the movable clamping column 1207 to a suitable position through the fixed plate 1206, and then the test object is clamped inside the rotating clamping column 1208 and the movable clamping column 1207, so as to adapt to the length of various clamped objects. After the experiment is completed, the reciprocating motor 1202 is started, so that the movable clamping column 1207 drives the brush mechanism 10 to move, so as to clean the debris on the workbench to prevent people from accidentally touching the workbench and being scratched by the debris.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A torsional fatigue testing device, comprising a housing (1), characterized in that: The top end of the outer shell (1) is slidably connected to a protective cover (2), the left and right ends of the outer shell (1) are fixedly connected to a connecting shell (3), the left and right ends of the protective cover (2) are fixedly connected to plug blocks (4), the interior of the connecting shell (3) is fixedly connected to a fixed shell (5), the interior of the fixed shell (5) is fixedly connected to an inner shell (6), the interior of the inner shell (6) is slidably connected to a limiting ring (7), the end of the limiting ring (7) away from the connecting shell (3) is fixedly connected to a thrust spring (8), and the interior of the limiting ring (7) is fixedly connected to a mounting column (9).

2. A torsional fatigue testing device according to claim 1, characterized in that: The right end of the housing (1) is fixedly connected to an operating table (11), and the rear end of the housing (1) is fixedly connected to a driving mechanism (12).

3. A torsional fatigue testing device according to claim 2, characterized in that: The driving mechanism (12) comprises a support frame (1201), the front end of the support frame (1201) is fixedly connected to the rear end of the housing (1), the front end of the support frame (1201) is fixedly connected to a reciprocating motor (1202), the output end of the reciprocating motor (1202) is fixedly connected to a gear (1203), the top end of the housing (1) is fixedly connected to a connecting block (1204), the interior of the connecting block (1204) is slidably connected to a push rod (1205), the left end of the push rod (1205) is fixedly connected to a fixing plate (1206), the outside of the fixing plate (1206) is fixedly connected to a movable clamping column (1207), and the top end of the housing (1) is fixedly connected to a rotating clamping column (1208).

4. A torsional fatigue testing device according to claim 3, characterized in that: The top end of the housing (1) is fixedly connected to a limiting square plate (1209), and the outside of the push rod (1205) is slidably connected to the inside of the limiting square plate (1209).

5. A torsional fatigue testing device according to claim 4, characterized in that: The bottom end of the movable clamping column (1207) is fixedly connected to the inside of the housing (1), and the outside of the movable clamping column (1207) is fixedly connected to two brush mechanisms (10).

6. A torsional fatigue testing device according to claim 5, characterized in that: The brush mechanism (10) comprises a brush shell (1001), the outside of the brush shell (1001) is fixedly connected to the outside of the movable clamping column (1207), the inside of the brush shell (1001) is slidably connected to a limit plate (1002), the top end of the limit plate (1002) is fixedly connected to an outward push spring (1003), the other end of the outward push spring (1003) is fixedly connected to the inside of the brush shell (1001), and the bottom end of the limit plate (1002) is fixedly connected to a brush column (1004).

7. A torsional fatigue testing device according to claim 1, characterized in that: One end of the thrust spring (8) away from the limiting ring (7) is fixedly connected to the inside of the inner shell (6), and the outside of the mounting column (9) is slidably connected to the inside of the plug block (4).

8. A torsional fatigue testing device according to claim 1, characterized in that: The outside of the limiting ring (7) is fixedly connected to a sliding block (13), the inside of the inner shell (6) is provided with a sliding groove (14), and the outside of the sliding block (13) is slidably connected to the inside of the sliding groove (14).

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