CN210893654U - Spring fatigue testing device - Google Patents
Spring fatigue testing device Download PDFInfo
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- CN210893654U CN210893654U CN201922032124.9U CN201922032124U CN210893654U CN 210893654 U CN210893654 U CN 210893654U CN 201922032124 U CN201922032124 U CN 201922032124U CN 210893654 U CN210893654 U CN 210893654U
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- crankshaft
- spring
- counting
- belt wheel
- sliding
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Abstract
The utility model discloses a spring fatigue testing device, including a plurality of spring fixed block, a plurality of pulling force inductor, a plurality of slide rail, a plurality of slider, spring, a plurality of connecting rods, two bent axle supports, bent axle body, a plurality of bent axle necks, the lantern ring, motor fixing base, motor, reduction gear, main shaft, driving pulley, drive belt, count hole, count support, count inductor and industrial computer, every pulling force inductor and count inductor are all continuous with the industrial computer through the signal line. The utility model discloses the beneficial effect who gains is: the motor drives the crankshaft to rotate, a plurality of crankshaft necks are arranged on the crankshaft, each crankshaft neck drives one connecting rod, each connecting rod drives one sliding block to slide, and the sliding blocks can stretch the springs while sliding, so that fatigue test can be simultaneously performed on the springs.
Description
Technical Field
The utility model relates to a spring verifying attachment, especially a spring fatigue verifying attachment.
Background
At present, in spring production practice, every batch of springs need to be subjected to fatigue inspection by sampling a certain number of springs, so that the number of times of expansion before fatigue of the springs is determined, and if the number of times of expansion before fatigue of the springs does not reach the standard, the batch of springs need to be scrapped.
Disclosure of Invention
The utility model discloses the problem that solves is: the spring fatigue testing device is simple in structure, convenient to operate and capable of testing a plurality of springs at one time, and therefore spring testing efficiency is greatly improved.
In order to solve the above problem, the utility model discloses a spring fatigue testing device, include:
a plurality of spring fixing blocks;
the tension sensors correspond to the spring fixing blocks one by one, and are fixed on the inner sides of the corresponding spring fixing blocks;
the sliding rails correspond to the spring fixing blocks one by one in number;
the sliding blocks correspond to the sliding rails one by one, the sliding blocks are sleeved on the corresponding sliding rails, and springs to be tested are connected between the corresponding sliding blocks and the tension sensors;
the connecting rods correspond to the sliding blocks one by one, and one end of each connecting rod is hinged with the corresponding sliding block;
two crankshaft supports;
the crankshaft is erected between the two crankshaft supports and comprises a crankshaft body and a plurality of crankshaft necks, the crankshaft necks correspond to the connecting rods one by one, each crankshaft neck is sleeved with a lantern ring, and the other end of each connecting rod is fixedly connected with the corresponding lantern ring on the corresponding crankshaft neck;
the crankshaft comprises a crankshaft body, a motor fixing seat, a main shaft, a driving belt wheel, a transmission belt and a motor, wherein the motor is fixed on the motor fixing seat, the motor is provided with a speed reducer, the speed reducer is provided with a main shaft, the main shaft is fixedly provided with the driving belt wheel, the transmission belt wheel is fixed on the crankshaft body, the transmission belt is connected between the driving belt wheel and the transmission belt wheel, and the driving belt wheel and the transmission belt;
the counting hole is arranged on the driving belt wheel;
the counting bracket is fixedly provided with a counting sensor, and the counting sensor corresponds to a circular track passed by the counting hole when the counting hole rotates;
and each tension sensor and each counting sensor are connected with the industrial personal computer through signal wires.
Furthermore, the spring fatigue testing device of the utility model is provided with a hook on each slide block and each tension sensor, the hook on the tension sensor is arranged opposite to the hook on the slide block, and two ends of the spring to be tested are respectively connected with the two hooks;
further, the utility model discloses a spring fatigue test device, the outside of slide rail all is fixed with an anticreep dog.
The utility model discloses the beneficial effect who gains is: the motor drives the crankshaft to rotate, a plurality of crankshaft necks are arranged on the crankshaft, each crankshaft neck drives one connecting rod, each connecting rod drives one sliding block to slide, and the sliding blocks can stretch the springs while sliding, so that fatigue test can be simultaneously performed on the springs.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a plan view of the present invention.
In the figure: 1. a spring fixing block 2, a tension sensor 3, a slide rail 4, a spring 5, a slide block 6 and a connecting rod,
7. a lantern ring 8, a crankshaft neck 9, a driving belt wheel 10, a crankshaft body 11, a crankshaft support,
12. a transmission belt 13, a driving belt wheel 14, a counting inductor 15, a counting bracket 16, a motor fixing seat,
17. the counting device comprises a main shaft 18, a speed reducer 19, a motor 20, an anti-falling stop block 21 and a counting hole.
Detailed Description
As shown in fig. 1 and 2, the spring fatigue testing device comprises a plurality of spring fixing blocks 1, the inner side of each spring fixing block 1 is fixed with a tension sensor 2, the tension sensors 2 are in one-to-one correspondence with the spring fixing blocks 1, one side of each tension sensor 2 is provided with a sliding rail 3, the sliding rails 3 are in one-to-one correspondence with the spring fixing blocks 1, each sliding rail 3 is sleeved with a sliding block 5, the sliding blocks 5 are in one-to-one correspondence with the sliding rails 3, and when the sliding blocks 5 are acted by external force, the sliding blocks 5 can freely slide along the length directions of the corresponding sliding rails 3.
A spring 4 to be tested is connected between each corresponding sliding block 5 and the corresponding tension sensor 2, each sliding block 5 is also hinged with a connecting rod 6, and the connecting rods 6 are in one-to-one correspondence with the sliding blocks 5.
Still include two bent axle supports 11, the frame is equipped with a bent axle between bent axle support 11, and the bent axle includes bent axle body 10 and a plurality of bent axle necks 8, bent axle neck 8 and connecting rod 6 one-to-one, has all cup jointed a lantern ring 7 on every bent axle neck 8, and the other one end of connecting rod 6 links to each other with lantern ring 7 on the bent axle neck 8 that it corresponds respectively is fixed.
When the crankshaft rotates, the crankshaft journal 8 drives the connecting rod 6 corresponding to the crankshaft to swing, the connecting rod 6 drives the corresponding sliding block 5 to slide along the sliding rail 3 in the swinging process, the sliding block 5 stretches the spring 4 in the sliding process, the spring 4 is stretched once when the crankshaft rotates for one circle, the tension sensor 2 corresponding to the spring 4 is stretched once when the spring 4 is stretched in the stretching process, and when the spring 4 is stretched to the maximum value, the corresponding tension of the spring 4 on the tension sensor 2 also reaches the maximum value.
One side of bent axle is equipped with motor fixing base 16, is fixed with a motor 19 on the motor fixing base 16, is equipped with reduction gear 18 on the motor 19, is equipped with main shaft 17 on the reduction gear 18, is fixed with a driving pulley 13 on the main shaft 17, is fixed with a driving pulley 9 on the bent axle body 10, be connected with drive belt 12 between driving pulley 13 and the driving pulley 9.
After the motor 19 is started and reduced by the reducer 18, the main shaft 17 drives the driving belt wheel 13 to rotate, and after the transmission of the transmission belt 12, the driving belt wheel 9 is driven to rotate, and the driving belt wheel 9 further drives the crankshaft to rotate, so that the power of the motor 19 is transmitted to the crankshaft.
Be equipped with a count hole 21 on the driving pulley 13, the outside of count hole 21 is equipped with count support 15, be equipped with count inductor 14 on the count support 15, the circular orbit that passes through when count inductor 14 rotates with count hole 21 is corresponding, when the axis of count hole 21 is located same straight line with the axis of count inductor 14, count inductor 14 will count once, that is to say, driving pulley 13 rotates a week, count inductor 14 is just counted once.
Still include an industrial computer, every pulling force inductor 2 and count inductor 14 all link to each other with the industrial computer through the signal line, so, the atress size that pulling force inductor 2 detected and count inductor 14's count homoenergetic real-time passing signal line send for the industrial computer.
When the spring fatigue testing device is used specifically, firstly, a spring 4 to be tested is placed between each tension sensor 2 and the corresponding sliding block 5, the two ends of the spring 4 are respectively connected with the tension sensors 2 and the sliding blocks 5, then the motor 19 is started, after the motor 19 is started, the speed is reduced through the speed reducer 18, the main shaft 17 rotates, the main shaft 17 can drive the driving belt wheel 13 to rotate while rotating, the driving belt wheel 13 drives the driving belt wheel 9 and the crankshaft to rotate after being driven by the driving belt 12, the crankshaft can further drive the plurality of crankshaft necks 8 to rotate while rotating, each crankshaft neck 8 can also drive the connecting rod 6 to swing, and by utilizing the swinging of the connecting rod 6, the sliding block 5 can be driven to slide along the sliding rail 3 finally, and the stretching of the spring 4 to be tested can be realized while the sliding block 5 slides, when the spring 4 is stretched, the magnitude of the pulling force of the spring on the pulling force sensor 2 can be transmitted to the industrial personal computer through a signal wire.
Because the driving belt wheel 13 and the driving belt wheel 9 are equal in size, each time the main shaft 17 rotates for one circle, the driving belt wheel 13, the driving belt wheel 9, the crankshaft and the crankshaft journal 8 all rotate for one circle, correspondingly, the connecting rod 6 swings once, the sliding block 5 slides back and forth along the sliding rail 3 once, and the spring 4 is stretched once. Meanwhile, every time the driving belt wheel 13 rotates for a circle, the central axis of the counting sensor 14 coincides with the central axis of the counting hole 21 once, the counting sensor 14 counts once, and the counting times are also transmitted to the industrial personal computer through signal lines.
Therefore, the spring fatigue inspection device of this embodiment, main shaft 17 rotates a week for every time, every spring 4 of waiting to inspect is all stretched once, its biggest pulling force value is once recorded by the industrial computer, utilize count inductor 14, the industrial computer is once also counted simultaneously, along with the continuous rotation of main shaft 17, when the biggest pulling force value of spring 4 surpassed normal pulling force value, then this spring gets into tired stage, at this moment, this time count value is promptly this spring 4's effective flexible number of times, if this effective flexible number of times is greater than the rated flexible number of times, this spring 4 just belongs to the certified products.
Similarly, it can be determined whether the other springs 4 are qualified.
In summary, the spring fatigue testing device of the present embodiment can perform the fatigue testing work of a plurality of springs at one time, compared to the conventional spring testing device, and thus has a high testing speed and a high testing efficiency.
The spring fatigue testing device of this embodiment all is equipped with a couple on every slider and every pulling force inductor 2, and the couple on pulling force inductor 2 sets up with the couple on the slider 5 relatively, and the both ends of the spring 4 of waiting to inspect are connected with two couples respectively, therefore after the inspection of a batch of spring 4 finishes, are convenient for change spring 4 and carry out the inspection of next batch.
In the spring fatigue testing device of this embodiment, an anti-separation stopper 20 is fixed on the outer side of the slide rail 3, so that the slide 5 can be prevented from separating from the slide rail 3.
Claims (3)
1. A spring fatigue testing device, comprising:
a plurality of spring fixing blocks (1);
the tension sensors (2) correspond to the spring fixing blocks (1) one by one, and the tension sensors (2) are fixed on the inner sides of the corresponding spring fixing blocks (1);
the number of the sliding rails (3) corresponds to that of the spring fixing blocks (1) one by one;
the sliding blocks (5) correspond to the sliding rails (3) one by one, the sliding blocks (5) are sleeved on the corresponding sliding rails (3), and a spring (4) to be tested is connected between each corresponding sliding block (5) and each tension sensor (2);
the connecting rods (6) are in one-to-one correspondence with the sliding blocks (5), and one end of each connecting rod (6) is hinged with the corresponding sliding block (5);
two crankshaft supports (11);
the crankshaft is erected between two crankshaft supports (11), the crankshaft comprises a crankshaft body (10) and a plurality of crankshaft necks (8), the crankshaft necks (8) correspond to the connecting rods (6) one by one, each crankshaft neck (8) is sleeved with a lantern ring (7), and the other end of each connecting rod (6) is fixedly connected with the lantern ring (7) on the corresponding crankshaft neck (8);
the crankshaft body (10) is fixedly provided with a transmission belt wheel (9), a transmission belt (12) is connected between the transmission belt wheel (13) and the transmission belt wheel (9), and the transmission belt wheel (13) and the transmission belt wheel (9) are equal in size;
a counting hole (21) arranged on the driving belt wheel (13);
the counting device comprises a counting support (15), wherein a counting sensor (14) is fixed on the counting support (15), and the counting sensor (14) corresponds to a circular track passed by the counting hole (21) during rotation;
and each tension sensor (2) and each counting sensor (14) are connected with the industrial personal computer through signal wires.
2. The spring fatigue testing device of claim 1, wherein: every slider (5) and every pulling force inductor (2) are all equipped with a couple, and the couple on pulling force inductor (2) sets up with the couple on slider (5) relatively, and the both ends of treating the spring (4) of examining link to each other with two couples respectively.
3. The spring fatigue testing device of claim 1, wherein: and the outer sides of the sliding rails (3) are respectively fixed with an anti-falling stop block (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922032124.9U CN210893654U (en) | 2019-11-20 | 2019-11-20 | Spring fatigue testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922032124.9U CN210893654U (en) | 2019-11-20 | 2019-11-20 | Spring fatigue testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210893654U true CN210893654U (en) | 2020-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922032124.9U Active CN210893654U (en) | 2019-11-20 | 2019-11-20 | Spring fatigue testing device |
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| CN (1) | CN210893654U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880995A (en) * | 2021-01-19 | 2021-06-01 | 绍兴文理学院 | Fatigue testing machine for simultaneously testing torsion spring and volute spiral spring based on vibration frequency |
| CN114459927A (en) * | 2021-11-12 | 2022-05-10 | 安徽德孚转向***股份有限公司 | Torsion bar spring fatigue test device and method for automobile electric power steering gear |
-
2019
- 2019-11-20 CN CN201922032124.9U patent/CN210893654U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880995A (en) * | 2021-01-19 | 2021-06-01 | 绍兴文理学院 | Fatigue testing machine for simultaneously testing torsion spring and volute spiral spring based on vibration frequency |
| CN112880995B (en) * | 2021-01-19 | 2022-09-02 | 绍兴文理学院 | Fatigue testing machine for simultaneously testing torsion spring and volute spiral spring based on vibration frequency |
| CN114459927A (en) * | 2021-11-12 | 2022-05-10 | 安徽德孚转向***股份有限公司 | Torsion bar spring fatigue test device and method for automobile electric power steering gear |
| CN114459927B (en) * | 2021-11-12 | 2023-11-28 | 安徽德孚转向***股份有限公司 | Torsion bar spring fatigue test device and test method for automobile electric power steering gear |
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