CN212363628U - Automatic tensioning ware fatigue performance testing machine - Google Patents
Automatic tensioning ware fatigue performance testing machine Download PDFInfo
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- CN212363628U CN212363628U CN202021107254.0U CN202021107254U CN212363628U CN 212363628 U CN212363628 U CN 212363628U CN 202021107254 U CN202021107254 U CN 202021107254U CN 212363628 U CN212363628 U CN 212363628U
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- tensioner
- detection device
- fatigue performance
- eccentric wheel
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Abstract
The utility model provides an automatic tensioner fatigue performance testing machine, which comprises a frame, wherein a tensioner driving device and a tensioner bounce force detection device are arranged on the frame; the front end of the tensioner driving device is fixedly connected with an eccentric wheel, the tensioner driving device drives the eccentric wheel to rotate for 180 degrees to-180 degrees, and the eccentric wheel abuts against a rotating wheel of the tensioner; the rotating wheel of the tensioner is connected with a driving motor, and the driving motor drives the rotating wheel to rotate; the tensioner is connected with the tensioner bounce force detection device. Use the utility model discloses technical scheme can satisfy the test detection that detects the fatigue performance of tensioning ware inner bearing fatigue performance and life, tensioning ware's spring and the fatigue performance of tensioning ware runner completely.
Description
Technical Field
The utility model relates to a tensioning ware detects technical field, in particular to automatic tensioning ware fatigue performance testing machine.
Background
The tensioner is a commonly used holding device on a belt and chain transmission system, and is used for holding a belt and a chain to have proper tension in the transmission process, so that the belt is prevented from slipping, a synchronous belt is prevented from jumping and falling off, or the chain is prevented from loosening and falling off, and the abrasion of a chain wheel and the chain is reduced. Therefore, the testing device is used as an important component of a vehicle and plays an important role in the safety of the vehicle, but the testing of the automatic tensioner in the existing market is still the traditional manual testing or is not directly carried out on a product test, which seriously affects the quality of the automatic tensioner and causes a safety hazard to the use of the vehicle at a later stage.
SUMMERY OF THE UTILITY MODEL
In order to solve the inefficiency of tensioning ware inspection among the prior art and can't implement the defect of effective test, the utility model provides an automatic tensioning ware fatigue performance testing machine that can satisfy the test that detects tensioning ware inner bearing life, spring force change and fatigue performance.
The utility model discloses specific technical scheme as follows:
an automatic tensioner fatigue performance testing machine comprises a rack, wherein a tensioner driving device and a tensioner bounce force detection device are arranged on the rack; the front end of the tensioner driving device is fixedly connected with an eccentric wheel, the tensioner driving device drives the eccentric wheel to rotate for 180 degrees to-180 degrees, and the eccentric wheel abuts against a rotating wheel of the tensioner; the rotating wheel of the tensioner is connected with a driving motor, and the driving motor drives the rotating wheel to rotate; the tensioner is connected with the tensioner bounce force detection device.
Further, the tensioner driving device comprises a variable frequency motor, and the variable frequency motor drives the eccentric wheel to rotate positively and negatively and can drive the eccentric wheel to change the rotating speed. Thereby realizing the variable quantity of the rotation times with certain amplitude under the set frequency.
Further, the variable frequency motor is a 7.5kw variable frequency motor, the variable frequency motor is connected with a 1:10 speed reducer, and the speed reducer is connected with the eccentric wheel.
Further, the tensioner comprises the rotating wheel and a spring, the rotation of the eccentric wheel drives the spring of the tensioner to be tensioned or compressed, and the tensioned bounce of the spring drives the tensioner bounce detection device to move horizontally. Therefore, when the eccentric wheel rotates to the position of the tensioner, the tensioner is driven to deflect, so that the spring on the tensioner is pulled open, and after the eccentric wheel rotates, the pulled open spring drives the tensioner to return to apply a force of horizontal displacement to the tensioner, namely, the horizontal displacement of the tensioner drives the horizontal displacement of the tensioner bounce force detection device.
Furthermore, a moving device is arranged on the rack, the moving device can horizontally move along the rack, the tensioner and the driving motor are both arranged on the moving device, and the bounce force of the spring drives the moving device to horizontally move. Therefore, the displacement condition of the tensioner can be effectively and accurately detected conveniently.
Further, still be provided with the cylinder in the frame, the piston rod of cylinder is connected tensioning ware resilience detection device, tensioning ware resilience detection device's horizontal migration drives the piston rod removes, tensioning ware resilience detection device detects tensioning ware's resilience data. Therefore, the rebound force generated by the tensioner is applied to the rebound force detection device of the tensioner to measure the rebound force data of the tensioner, the eccentric change of the eccentric wheel of the tensioner in the test process is kept through the quick adjustment of the air pressure of the piston rod, and the thrust action and the buffering action of the air cylinder can also keep the force measurement stability of the rebound force detection device of the tensioner.
Furthermore, the tensioner driving device is also provided with a rotation frequency detection device, a 360-degree angular displacement sensor and a torque detection device, the tensioner bounce force detection device, the rotation frequency detection device, the 360-degree angular displacement sensor and the torque detection device all transmit data to a PLC (programmable logic controller) and a computer, and the PLC and the computer determine the torque change of the tensioner and the change rate of the bounce force of the spring according to the transmitted data. The computer calculates the torque value, the rotation angle, the rotation times and the resilience data in the rotation process according to a formula, judges the torque change condition and the elasticity change condition of the tensioner under a certain frequency in real time so as to judge the tension performance and the fatigue performance of the tensioner, and can store and print the change rate of the torque change and the resilience of the spring.
Use the utility model discloses technical scheme can satisfy the fatigue performance that detects tensioning ware inner bearing fatigue performance and life, tensioning ware's spring and the fatigue performance of tensioning ware runner completely, just also can be complete carry out automatic tensioning ware's fatigue performance (life) experiment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a main view of a tester according to an embodiment of the present invention;
FIG. 2 is a top view of the testing machine according to the embodiment of the present invention;
fig. 3 is a schematic view of the connection between the eccentric wheel and the tensioner according to the embodiment of the present invention.
Wherein: the device comprises a frame 1, a tensioner driving device 2, an eccentric wheel 3, a tensioner 4, a rotating wheel 41, a driving motor 5, a moving device 6, a cylinder 7, a piston rod 71, a variable frequency motor 8, a speed reducer 9, a rotation frequency detection device 21, a 360-degree angular displacement sensor 22, a torque detection device 23, a testing machine 10 and a tensioner bounce force detection device 20.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the embodiment of the present invention, as shown in fig. 1 and 2, an automatic tensioner fatigue performance testing machine 10 comprises a frame 1, wherein a tensioner driving device 2 and a tensioner bounce force detecting device 20 are arranged on the frame 1; the front end of the tensioner driving device 2 is fixedly connected with an eccentric wheel 3, the tensioner driving device 1 drives the eccentric wheel 3 to rotate for 180 degrees to-180 degrees, and the eccentric wheel 3 abuts against a rotating wheel 41 of the tensioner 4; the rotating wheel 41 of the tensioner 4 is connected with the driving motor 5, and the driving motor 5 drives the rotating wheel 41 to rotate; tensioner 4 is connected to tensioner bounce force detection device 20.
In the embodiment of the utility model, as shown in fig. 1, tensioner drive arrangement 2 includes inverter motor 8, and inverter motor 8 drives eccentric wheel 3 and just can drive eccentric wheel 3 and carry out the change of rotational speed just in positive and negative rotation. The variable frequency motor 8 is used for carrying out variable frequency speed regulation driving and changing the rotating speed of the variable frequency motor 8 so as to realize the variable quantity of the rotating times with certain amplitude under the set frequency. Preferably, the variable frequency motor 8 is a 7.5kw variable frequency motor, and the variable frequency motor 8 is connected with a 1:10 speed reducer 9, and the speed reducer 9 is connected with the eccentric wheel 3.
Obviously, where fig. 3 shows that the eccentric wheel rotates 180 degrees counterclockwise, it is obvious that when the eccentric wheel 3 rotates 180 degrees clockwise, the spring 42 will be compressed. As shown in fig. 3, the tensioner 4 includes a rotating wheel 41 and a spring 42, the rotation of the eccentric wheel 3 drives the spring 42 of the tensioner 4 to be pulled apart, and the rebounding force generated by pulling apart the spring 42 drives the tensioner 4 to horizontally move, so as to drive the tensioner rebounding force detection device 20 to horizontally move. Thus, each time the eccentric 3 rotates to the tensioner, the tensioner 4 is driven to deflect, so that the spring 42 on the tensioner 4 is pulled apart or compressed, and after the eccentric 3 rotates, the pulled apart spring 42 drives the tensioner 4 to return to apply a force to the tensioner 4 for horizontal displacement, i.e. the horizontal displacement of the tensioner 4 drives the horizontal displacement of the tensioner bounce force detection device 20.
Preferably, as shown in fig. 1, a moving device 6 is disposed on the frame 1, the moving device 6 can move horizontally along the frame 1, the tensioner 4 and the driving motor 5 are both disposed on the moving device 6, the resilience of the spring 42 drives the moving device 6 to move horizontally, and the moving device 6 drives the tensioner 4 and the driving motor to move horizontally. Thereby, effective and accurate detection of the displacement condition of the tensioner 4 can be facilitated.
As shown in fig. 1 and 2, a cylinder 7 is further disposed on the frame 1, a piston rod 71 of the cylinder 7 is connected to the tensioner bounce force detecting device 20, the piston rod 71 is moved by the horizontal movement of the tensioner bounce force detecting device 20, and the tensioner bounce force detecting device 20 detects the displacement of the piston rod 71. Thereby, the magnitude of the force value of the spring repulsive force can be detected again from the displacement of the piston rod 71.
Preferably, in order to timely and accurately detect the fatigue performance of the tensioner, a rotation number detection device 21, a 360 ° angular displacement sensor 22 and a torque detection device 23 are further provided on the tensioner driving device 2, the tensioner bounce force detection device 20 transmits the elastic force data value, the rotation number detection device 21, the 360 ° angular displacement sensor 22, the torque detection device 23 to a PLC controller and a computer (not shown here), and the computer calculates the torque change of the tensioner 4 and the change rate of the bounce force of the spring 42 according to the transmitted data by using a formula, and can store and print the calculated data.
The computer calculates the rate of change and the profile of change of the force of spring 42 from the change in torque and the opposing force generated by the change in the amplitude of tensioner 4 through the change in torque during rotation. Wherein, the change rate formula of the torque value is as follows: { Σ { (1-N2/N1) × 100% }, where N1 is the initial torque value (torque value at 100 rotations) and N2 is the final torque value.
Therefore, the torque value change condition and the elastic force change condition of the tensioner 4 under a certain frequency are judged in real time according to the torque value, the rotation angle, the rotation times and the bounce data in the rotation process, so that the tension performance and the fatigue performance of the tensioner are judged.
Use the utility model discloses technical scheme can satisfy the experimental detection of tensioning ware 4 inner bearing fatigue performance and life, tensioning ware's spring 42's fatigue performance and tensioning ware 4's runner 42's fatigue performance completely, just also can completely carry out automatic tensioning ware 4's fatigue performance (life) experiment.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides an automatic tensioning ware fatigue performance testing machine, includes the frame, its characterized in that: the stander is provided with a tensioner driving device and a tensioner bounce force detection device; the front end of the tensioner driving device is fixedly connected with an eccentric wheel, the tensioner driving device drives the eccentric wheel to rotate for 180 degrees to-180 degrees, and the eccentric wheel abuts against a rotating wheel of the tensioner; the rotating wheel of the tensioner is connected with a driving motor, and the driving motor drives the rotating wheel to rotate; the tensioner is connected with the tensioner bounce force detection device.
2. The automatic tensioner fatigue performance testing machine of claim 1, characterized in that: the tensioner driving device comprises a variable frequency motor, wherein the variable frequency motor drives the eccentric wheel to rotate positively and negatively and can drive the eccentric wheel to change the rotating speed.
3. The automatic tensioner fatigue performance testing machine of claim 2, characterized in that: the variable frequency motor is a 7.5kw variable frequency motor, and the variable frequency motor is connected with a 1:10 speed reducer, and the speed reducer is connected with the eccentric wheel.
4. The automatic tensioner fatigue performance testing machine of any one of claims 1 to 3, characterized in that: the tensioner comprises the rotating wheel and a spring, the rotation of the eccentric wheel drives the spring of the tensioner to be tensioned or compressed, and the tensioned bounce of the spring drives the tensioner bounce detection device to move horizontally.
5. The automatic tensioner fatigue performance testing machine of claim 4, characterized in that: the tensioner and the driving motor are both arranged on the moving device, and the bounce force of the spring drives the moving device to move horizontally.
6. The automatic tensioner fatigue performance testing machine of claim 5, characterized in that: the tensioner is characterized in that the rack is further provided with an air cylinder, a piston rod of the air cylinder is connected with the tensioner bounce force detection device, the horizontal movement of the tensioner bounce force detection device drives the piston rod to move, and the tensioner bounce force detection device detects bounce force data of the tensioner.
7. The automatic tensioner fatigue performance testing machine of claim 6, characterized in that: the tensioner driving device is also provided with a rotation frequency detection device, a 360-degree angular displacement sensor and a torque detection device, the tensioner bounce force detection device, the rotation frequency detection device, the 360-degree angular displacement sensor and the torque detection device all transmit data to a PLC (programmable logic controller) and a computer, and the PLC and the computer determine the torque change of the tensioner and the change rate of the bounce force of the spring according to the transmitted data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021107254.0U CN212363628U (en) | 2020-06-15 | 2020-06-15 | Automatic tensioning ware fatigue performance testing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021107254.0U CN212363628U (en) | 2020-06-15 | 2020-06-15 | Automatic tensioning ware fatigue performance testing machine |
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| CN212363628U true CN212363628U (en) | 2021-01-15 |
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| CN202021107254.0U Active CN212363628U (en) | 2020-06-15 | 2020-06-15 | Automatic tensioning ware fatigue performance testing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113567102A (en) * | 2021-07-29 | 2021-10-29 | 泰州市祥泰设备配套有限公司 | Fatigue detection equipment for hoisting belt |
-
2020
- 2020-06-15 CN CN202021107254.0U patent/CN212363628U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113567102A (en) * | 2021-07-29 | 2021-10-29 | 泰州市祥泰设备配套有限公司 | Fatigue detection equipment for hoisting belt |
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