CN217786798U - Fatigue testing machine with dynamically changed load - Google Patents
Fatigue testing machine with dynamically changed load Download PDFInfo
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- CN217786798U CN217786798U CN202221571316.2U CN202221571316U CN217786798U CN 217786798 U CN217786798 U CN 217786798U CN 202221571316 U CN202221571316 U CN 202221571316U CN 217786798 U CN217786798 U CN 217786798U
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Abstract
The utility model provides a load dynamic change's fatigue testing machine, include frame, actuating mechanism, clamping mechanism, three-roller detection mechanism, cross line wheel mechanism and load output mechanism. The driving mechanism comprises a motor, a rotating wheel, a driving belt and a connecting rod, the three-roller detection mechanism is arranged between the clamping mechanism and the wire passing wheel mechanism and comprises a first guide rail, a first sliding block, a mounting frame and three detection roller wheels, and the load output mechanism comprises an electric cylinder, an electric cylinder support, a second guide rail, a second sliding block, a first fixing block, a second fixing block, a tension sensor and a pull rod. The fatigue testing machine can simulate the stress condition of a steel wire under the actual working condition, has richer detection means, can perform the bending fatigue test of the steel wire, can also realize the dynamic change of steel wire load, and monitors the dynamic fatigue parameters of the steel wire, thereby providing guidance theoretical data support for the quality improvement and production process adjustment of steel wire products, and meeting the fatigue test requirements of high-quality steel wire products.
Description
Technical Field
The utility model relates to a fatigue test equipment field especially relates to a load dynamic change's fatigue testing machine.
Background
At present, steel wire products are applied to various fields of production and life, and include metal wires as small as hair, and bridge-crossing cables as large as being twisted by a plurality of steel wires. As a steel wire production unit, relevant performance detection means is indispensable for ensuring the reliable quality of the produced steel wire products, and the fatigue performance of the steel wire is the important factor among a plurality of performance indexes.
In a conventional steel wire fatigue test, a section of steel wire sample is cut, one end of the steel wire sample is fixed on a fatigue testing machine, a weight with required weight is hung at the other end of the steel wire sample, the three-roller detection wheel horizontally moves back and forth under the drive of a motor until the steel wire is disconnected, and the horizontal back and forth movement times and time of the three-roller detection wheel are recorded, so that the fatigue performance of the steel wire is obtained. In the process of the fatigue test, once the motor is started, the motor cannot be stopped midway, otherwise, the detection data has no guiding effect on production. The fatigue testing machine can meet the fatigue testing requirements of most steel wires. However, for steel wire products with high product quality requirements, if the steel wire products are applied to working conditions such as poor working conditions and extremely unstable stress, the existing fatigue tester has a single detection means, cannot simulate actual working conditions, and cannot meet the fatigue test requirements of high-quality steel wire products. Therefore, improvement of the detection means of the fatigue testing machine is urgently required.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists among the prior art, and the fatigue testing machine of a load dynamic change who proposes richens the measuring means, satisfies the fatigue test demand of high-quality steel wire product, improves the guide direction for steel wire production technology.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a fatigue testing machine with dynamically changed load comprises a rack, a driving mechanism, a clamping mechanism, a three-roller detection mechanism, a wire wheel mechanism and a load output mechanism.
The driving mechanism comprises a motor, a rotating wheel, a transmission belt and a connecting rod, the motor is arranged on the rack, the transmission belt is connected with an output shaft of the motor and a rotating shaft of the rotating wheel, and a first end of the connecting rod is hinged with an eccentric part of the rotating wheel.
The three-roller detection mechanism is arranged between the clamping mechanism and the wire passing wheel mechanism.
The three-roller detection mechanism comprises a first guide rail, a first slider, a mounting frame and three detection rollers, the first guide rail is arranged on the rack, the first slider is movably arranged on the first guide rail, the mounting frame is fixed on the first slider, the second end of the connecting rod is hinged to the mounting frame, the three detection rollers are rotatably arranged on the mounting frame, the three detection rollers are arranged in a triangular shape, and the central axes of the three detection rollers are parallel to each other.
The load output mechanism comprises an electric cylinder, an electric cylinder support, a second guide rail, a second sliding block, a first fixing block, a second fixing block, a tension sensor and a pull rod, the electric cylinder support is arranged on the rack, the electric cylinder is arranged on the electric cylinder support, the second guide rail is arranged on one side of an output rod of the electric cylinder, the second sliding block is movably arranged on the second guide rail, the first fixing block and the second fixing block are arranged on the second sliding block, the output rod of the electric cylinder is connected with the first fixing block, the first end of the tension sensor is connected with the second fixing block, and the second end of the tension sensor is connected with the first end of the pull rod.
Preferably, the clamping mechanism comprises a clamping seat, a clamping sleeve and a locking screw, the clamping seat is arranged on the rack, a through hole and a locking hole are formed in the clamping seat, and the central axis of the locking hole is perpendicular to the central axis of the through hole; the jacket is arranged in the through hole, and the central axis of the jacket is parallel to the central axis of the through hole; the locking screw is in threaded fit with the locking hole, and the inner end of the locking screw abuts against the outer wall of the clamping sleeve.
Preferably, one end of the through hole facing the three-roller detection mechanism is a horn mouth.
Preferably, the three detection rollers comprise a first detection roller, a second detection roller and a third detection roller, the first detection roller is as high as the third detection roller, and the second detection roller is arranged above the middle of the first detection roller and the third detection roller.
Preferably, the wire passing wheel mechanism comprises a first wire passing wheel and a second wire passing wheel, the first wire passing wheel and the second wire passing wheel are both rotatably arranged on the rack, the first wire passing wheel is arranged above the second wire passing wheel, and the central axis of the second wire passing wheel is parallel to the central axis of the first wire passing wheel.
Preferably, in the fatigue test, one end of the steel wire sample is clamped in the clamping sleeve, and the other end of the steel wire sample bypasses the first detection roller, the second detection roller, the third detection roller, the first wire passing roller and the second wire passing roller and then is connected with the second end of the pull rod.
Preferably, the central axis of the rotating wheel is parallel to the central axis of the output shaft of the motor, and the transmission belt and the connecting rod are located on two sides of the rotating wheel.
Preferably, the driving mechanism further comprises a protective cover, and the protective cover is arranged outside the rotating wheel.
Preferably, the fatigue testing machine with dynamic load change further comprises a control cabinet, and the motor, the electric cylinder and the tension sensor are respectively electrically connected with the control cabinet.
Furthermore, an operation display panel and control buttons are arranged on the control cabinet.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a fatigue testing machine can simulate the atress condition of steel wire under the operating condition, has abundanter measuring means, not only can carry out the bending fatigue test of steel wire, can also realize the dynamic change of steel wire load, monitors the dynamic fatigue parameter of steel wire to for steel wire product quality promotes, the production technology adjustment provides and guides theoretical data and supports, satisfy the fatigue test requirement of high-quality steel wire product.
Drawings
Fig. 1 is a front view of a fatigue testing machine with dynamically changing load according to embodiment 1 of the present invention;
fig. 2 is a top view of a fatigue testing machine with dynamically changing load according to embodiment 1 of the present invention;
fig. 3 is a half sectional view of the clamping mechanism in embodiment 1 of the present invention;
fig. 4 is a front view of the three-stick detection mechanism in embodiment 1 of the present invention;
fig. 5 is a front view of the load output mechanism in embodiment 1 of the present invention;
fig. 6 is a plan view of the load output mechanism according to embodiment 1 of the present invention.
In the figure, 100-fatigue testing machine; 10-a frame; 20-driving mechanism, 21-motor, 22-rotating wheel, 23-driving belt, 24-connecting rod, 25-protective cover; 30-clamping mechanism, 31-clamping seat, 311-through hole, 312-locking hole, 32-jacket and 33-locking screw; 40-three-roller detection mechanism, 41-first guide rail, 42-first slide block, 43-mounting frame, 44-detection roller, 441-first detection roller, 442-second detection roller, 443-third detection roller; 50-wire passing wheel mechanism, 51-first wire passing wheel, 52-second wire passing wheel; 60-a load output mechanism, 61-an electric cylinder, 62-an electric cylinder support, 63-a second guide rail, 64-a second sliding block, 65-a first fixed block, 66-a second fixed block, 67-a tension sensor and 68-a pull rod; 70-control cabinet, 71-operation display panel, 72-control button; 80-Steel wire sample.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
Please refer to fig. 1 to fig. 6 in combination, fig. 1 is a front view of a fatigue testing machine with dynamically changing load according to embodiment 1 of the present invention; fig. 2 is a top view of a fatigue testing machine with dynamically changing load according to embodiment 1 of the present invention; fig. 3 is a half sectional view of the clamping mechanism in embodiment 1 of the present invention; fig. 4 is a front view of the three-stick detection mechanism in embodiment 1 of the present invention; fig. 5 is a front view of the load output mechanism in embodiment 1 of the present invention; fig. 6 is a plan view of the load output mechanism according to embodiment 1 of the present invention.
The utility model discloses a load dynamic change's fatigue testing machine 100, include frame 10, actuating mechanism 20, clamping mechanism 30, three-roller detection mechanism 40, cross line wheel mechanism 50 and load output mechanism 60. The clamping mechanism 30 is used for clamping one end of the steel wire sample 80, the load output mechanism 60 is used for applying a dynamically changing load to the other end of the steel wire sample 80, and the driving mechanism 20 is matched with the three-roller detection mechanism 40 to realize the bending fatigue test of the steel wire sample 80.
Specifically, referring to fig. 1, the driving mechanism 20 includes a motor 21, a rotating wheel 22, a transmission belt 23 and a connecting rod 24, the motor 21 and the rotating wheel 22 are disposed on the frame 10, the transmission belt 23 is connected to an output shaft of the motor 21 and a rotating shaft of the rotating wheel 22, and a first end of the connecting rod 24 is hinged to an eccentric portion of the rotating wheel 22. When the motor 21 is operated, the rotating wheel 22 can be driven to rotate by the driving belt 23.
Preferably, the central axis of the rotator 22 is parallel to the central axis of the output shaft of the motor 21, and the transmission belt 23 and the link 24 are located at both sides of the rotator 22.
Referring to fig. 1 and fig. 3 in combination, the clamping mechanism 30 includes a clamping seat 31, a clamping sleeve 32 and a locking screw 33, the clamping seat 31 is disposed on the frame 10, a through hole 311 and a locking hole 312 are disposed on the clamping seat 31, and a central axis of the locking hole 312 is perpendicular to a central axis of the through hole 311; the jacket 32 is arranged in the through hole 311, and the central axis of the jacket 32 is parallel to the central axis of the through hole 311. The locking screw 33 is threadedly engaged with the locking hole 312, and the inner end of the locking screw 33 abuts against the outer wall of the jacket 32. In application, one end of the steel wire sample 80 extends into the jacket 32 in the through hole 311, and the locking screw 33 is screwed, so that one end of the steel wire sample 80 can be fixed.
The utility model discloses a preferred embodiment, through-hole 311 is outer wide interior narrow horn mouth towards the one end of three-roller detection mechanism 40, and the inner wall of this horn mouth structure has the guide effect, makes things convenient for operating personnel to penetrate in the through-hole with steel wire sample 80 to improve clamping efficiency.
Referring to fig. 1 and 4, the three-roller detecting mechanism 40 is disposed between the clamping mechanism 30 and the thread guide wheel mechanism 50. The three-roller detecting mechanism 40 includes a first guide rail 41, a first slider 42, an installation frame 43 and three detecting rollers 44, the first guide rail 41 is arranged on the frame 10, the first slider 42 is movably arranged on the first guide rail 41, the installation frame 43 is fixed on the first slider 42, the second end of the connecting rod 24 is hinged to the installation frame 43, the three detecting rollers 44 are all rotatably arranged on the installation frame 43, and the three detecting rollers 44 are arranged in a triangular shape and the central axes of the three detecting rollers 44 are parallel to each other.
In one embodiment, the three inspection rollers 44 include a first inspection roller 441, a second inspection roller 442 and a third inspection roller 443, the first inspection roller 441 and the third inspection roller 443 have the same height, and the second inspection roller 442 is disposed above the middle of the first inspection roller 441 and the third inspection roller 443. Of course, the present invention is not limited thereto, and in other embodiments of the present invention, three detection rollers 44 can also adopt other reasonable arrangement modes.
In the fatigue test, the wire sample 80 bypasses the first inspection roller 441, the second inspection roller 442 and the third inspection roller 443. Because the first end of connecting rod 24 is articulated with the eccentric position of swiveling wheel 22, the second end of connecting rod 24 is articulated with mounting bracket 43, mounting bracket 43 is fixed on first slider 42, first slider 42 can move on first guide rail 41, therefore, motor 21 during operation, drive swiveling wheel 22 and rotate, rethread connecting rod 24 drives mounting bracket 43 and first slider 42 along first guide rail 41 motion, thereby make three detection running roller 44 level come and go to different positions of moving to steel wire sample 80, realize steel wire sample 80's bending fatigue test. By controlling the rotation speed or acceleration of the motor 21, the horizontal movement speed and acceleration of the three detection rollers 44 can be changed, thereby meeting the requirements of fatigue tests of different steel wires.
Referring to fig. 1, the wire passing wheel mechanism 50 includes a first wire passing wheel 51 and a second wire passing wheel 52, both the first wire passing wheel 51 and the second wire passing wheel 52 are rotatably disposed on the frame 10, the first wire passing wheel 51 is disposed above the second wire passing wheel 52, and a central axis of the second wire passing wheel 52 is parallel to a central axis of the first wire passing wheel 51 and is also parallel to central axes of the three detection rollers 44. However, the utility model discloses do not use this as the limit, the utility model discloses an in other embodiments, the quantity and the position relation of crossing the line wheel can also adopt other reasonable modes of setting up.
Referring to fig. 1, 5 and 6, the load output mechanism 60 includes an electric cylinder 61, an electric cylinder support 62, a second guide rail 63, a second slider 64, a first fixing block 65, a second fixing block 66, a tension sensor 67 and a pull rod 68, the electric cylinder support 62 is disposed on the frame 10, the electric cylinder 61 is disposed on the electric cylinder support 62, the second guide rail 63 is disposed on one side of an output rod of the electric cylinder 61, the second slider 64 is movably disposed on the second guide rail 63, the first fixing block 65 and the second fixing block 66 are disposed on the second slider 64, the output rod of the electric cylinder 61 is connected to the first fixing block 65, a first end of the tension sensor 67 is connected to the second fixing block 66, and a second end of the tension sensor 67 is connected to a first end of the pull rod 68. The output rod of the electric cylinder 61 can extend and contract, so that the first fixed block 65 drives the second sliding block 64 to move along the second guide rail 63, and the second fixed block 66, the tension sensor 67 and the pull rod 68 also move synchronously with the second sliding block 64.
In the fatigue test, one end of the steel wire sample 80 is clamped in the jacket 32, and the other end of the steel wire sample bypasses the first detection roller 441, the second detection roller 442, the third detection roller 443, the first wire passing roller 51 and the second wire passing roller 52 and is connected with the second end of the pull rod 68. When the output rod of the electric cylinder 61 extends and shortens, the second sliding block 64 can be driven to move along the second guide rail 63, so that the tension of the pull rod 68 on the steel wire sample 80 is dynamically changed, and the stress condition of the steel wire under the actual working condition is simulated. Tension sensor 67 can detect the pulling force size that pull rod 68 applyed steel wire sample 80, and the load of steel wire sample 80 makes things convenient for the staff to monitor, assay experimental data promptly.
In practical application, the motor 21 and the electric cylinder 61 can work simultaneously, the load of the steel wire sample 80 is dynamically changed while the bending fatigue test is carried out, the steel wire stress condition under severe working conditions is simulated, and the fatigue test requirements of high-quality steel wire products are met. Of course, the motor 21 and the electric cylinder 61 may also be operated independently, i.e., only the bending fatigue test or only the load change test.
In one embodiment, the rotating wheel 22, the clamping mechanism 30, the three-roller detecting mechanism 40, and the first wire passing wheel 51 are disposed at the upper half portion of the frame 10, the motor 21, the second wire passing wheel 52, and the load output mechanism 60 are disposed at the lower half portion of the frame 10, the load output mechanism 60 is disposed below the three-roller detecting mechanism 40, and the first guide rail 41 is parallel to the second guide rail 63. By adopting the position arrangement mode, the structure is compact, the whole machine volume is small, the occupied space is small, and the test effect is good. In other embodiments, the components may be arranged in other reasonable positions.
Referring to fig. 2, the clamping seat 31 may be provided with a plurality of through holes 311, a clamping sleeve 32 and locking screws 33, and correspondingly, the mounting frame 43 may be provided with a plurality of sets of detection rollers 44 (three detection rollers in each set), each set of detection rollers 44 corresponding to one set of wire passing roller mechanism 50 and one set of load output mechanism 60, so that the fatigue testing machine 100 can perform a fatigue test on a plurality of steel wire samples 80 at the same time, thereby improving the testing efficiency.
Referring to fig. 1, in the preferred embodiment of the present invention, the driving mechanism 20 further includes a protection cover 25, and the protection cover 25 is disposed outside the rotating wheel 22. The protection cover 25 can protect the rotating wheel 22, and the test safety is guaranteed.
Referring to fig. 1, in the preferred embodiment of the present invention, the fatigue testing machine 100 with dynamically changing load further includes a control cabinet 70, and the motor 21, the electric cylinder 61, and the tension sensor 67 are electrically connected to the control cabinet 70 respectively. Further, an operation display panel 71 and control buttons 72 are provided on the control cabinet 70. In the application, control button 72 can open including the complete machine and stop the button, the motor opens and stops the button, electric jar opens and stops the button etc, operation display panel 71 is used for realizing man-machine interaction, make things convenient for operating personnel to adjust motor 21's operating parameter and electric jar 61's operating parameter, and simultaneously, operation display panel 71 can show motor 21's operating condition, electric jar 61's operating condition and tension sensor 67's detection data, the testing personnel of being convenient for monitor test data, the analysis, promote for steel wire product quality, the production technology adjustment provides the improvement direction.
In practical application, motor 21, electric cylinder 61 and tension sensor 67 can adopt relevant products sold on the market, and first guide rail 41 and first slider 42, second guide rail 63 and second slider 64 can adopt the linear guide product sold on the market, and the structure, the principle of current product belong to prior art, the utility model discloses no longer describe repeatedly.
To sum up, the utility model discloses a fatigue testing machine can simulate the atress condition of steel wire under the operating condition, has abundanter detection means, not only can carry out the bending fatigue test of steel wire, can also realize the dynamic change of steel wire load, monitors the dynamic fatigue parameter of steel wire to for steel wire product quality promotes, production technology adjustment provides and guides theoretical data support, satisfy the fatigue test requirement of high-quality steel wire product.
The present invention has been described in relation to the above embodiments, which are only examples for implementing the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, all changes and modifications which do not depart from the spirit and scope of the present invention are deemed to fall within the scope of the present invention.
Claims (10)
1. The utility model provides a load dynamic change's fatigue testing machine which characterized in that: the three-roller wire passing mechanism comprises a rack, a driving mechanism, a clamping mechanism, a three-roller detection mechanism, a wire passing wheel mechanism and a load output mechanism;
the driving mechanism comprises a motor, a rotating wheel, a transmission belt and a connecting rod, the motor and the rotating wheel are arranged on the rack, the transmission belt is in transmission connection with an output shaft of the motor and a rotating shaft of the rotating wheel, and a first end of the connecting rod is hinged with an eccentric part of the rotating wheel;
the three-roller detection mechanism is arranged between the clamping mechanism and the wire passing wheel mechanism;
the three-roller detection mechanism comprises a first guide rail, a first sliding block, a mounting frame and three detection rollers, wherein the first guide rail is arranged on the rack, the first sliding block is movably arranged on the first guide rail, the mounting frame is fixed on the first sliding block, the second end of the connecting rod is hinged with the mounting frame, the three detection rollers are rotatably arranged on the mounting frame, the three detection rollers are arranged in a triangular shape, and the central axes of the three detection rollers are parallel to each other;
the load output mechanism comprises an electric cylinder, an electric cylinder support, a second guide rail, a second sliding block, a first fixing block, a second fixing block, a tension sensor and a pull rod, the electric cylinder support is arranged on the rack, the electric cylinder is arranged on the electric cylinder support, the second guide rail is arranged on one side of an output rod of the electric cylinder, the second sliding block is movably arranged on the second guide rail, the first fixing block and the second fixing block are arranged on the second sliding block, the output rod of the electric cylinder is connected with the first fixing block, the first end of the tension sensor is connected with the second fixing block, and the second end of the tension sensor is connected with the first end of the pull rod.
2. The fatigue testing machine with dynamic load change of claim 1, wherein: the clamping mechanism comprises a clamping seat, a clamping sleeve and a locking screw, the clamping seat is arranged on the rack, a through hole and a locking hole are formed in the clamping seat, and the central axis of the locking hole is perpendicular to the central axis of the through hole; the jacket is arranged in the through hole, and the central axis of the jacket is parallel to the central axis of the through hole; the locking screw is in threaded fit with the locking hole, and the inner end of the locking screw abuts against the outer wall of the clamping sleeve.
3. The fatigue testing machine with dynamic variation of load according to claim 2, wherein: one end of the through hole, which faces the three-roller detection mechanism, is a horn mouth.
4. The fatigue testing machine with dynamic variation of load according to claim 2, wherein: the three detection rollers comprise a first detection roller, a second detection roller and a third detection roller, the first detection roller is as high as the third detection roller, and the second detection roller is arranged above the middle of the first detection roller and the third detection roller.
5. The fatigue testing machine with dynamic variation of load according to claim 4, wherein: the wire passing wheel mechanism comprises a first wire passing wheel and a second wire passing wheel, the first wire passing wheel and the second wire passing wheel are both rotatably arranged on the rack, the first wire passing wheel is arranged above the second wire passing wheel, and the central axis of the second wire passing wheel is parallel to the central axis of the first wire passing wheel.
6. The fatigue testing machine with dynamic variation of load according to claim 5, wherein: in the fatigue test, one end of a steel wire sample is clamped in the clamping sleeve, and the other end of the steel wire sample bypasses the first detection roller, the second detection roller, the third detection roller, the first wire passing wheel and the second wire passing wheel and then is connected with the second end of the pull rod.
7. A fatigue testing machine with dynamic variation of load according to any of claims 1 to 6, wherein: the axis of swiveling wheel is on a parallel with the axis of the output shaft of the motor, the transmission belt with the connecting rod is located on both sides of the swiveling wheel.
8. A fatigue testing machine with dynamic variation of load according to any of claims 1 to 6, wherein: the driving mechanism further comprises a protective cover, and the protective cover is arranged outside the rotating wheel.
9. A fatigue testing machine with dynamic variation of load according to any of claims 1 to 6, characterized in that: the fatigue testing machine with dynamic load change further comprises a control cabinet, and the motor, the electric cylinder and the tension sensor are respectively electrically connected with the control cabinet.
10. The fatigue testing machine with dynamic variation of load according to claim 9, wherein: and an operation display panel and a control button are arranged on the control cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221571316.2U CN217786798U (en) | 2022-06-22 | 2022-06-22 | Fatigue testing machine with dynamically changed load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221571316.2U CN217786798U (en) | 2022-06-22 | 2022-06-22 | Fatigue testing machine with dynamically changed load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217786798U true CN217786798U (en) | 2022-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221571316.2U Active CN217786798U (en) | 2022-06-22 | 2022-06-22 | Fatigue testing machine with dynamically changed load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217786798U (en) |
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2022
- 2022-06-22 CN CN202221571316.2U patent/CN217786798U/en active Active
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