CN103344492B - A kind of tension-torsion test device and method - Google Patents
A kind of tension-torsion test device and method Download PDFInfo
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- CN103344492B CN103344492B CN201310277043.XA CN201310277043A CN103344492B CN 103344492 B CN103344492 B CN 103344492B CN 201310277043 A CN201310277043 A CN 201310277043A CN 103344492 B CN103344492 B CN 103344492B
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- power lead
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Abstract
A kind of tension-torsion test device, it comprises tension-torsion test platform, electric source wire securing device, counterweight assembly and lift rotating equipment, described electric source wire securing device is located at described tension-torsion test platform upper end, and described lift rotating equipment is located at described tension-torsion test platform lower end; Be fixed on tension-torsion test platform by needing the power lead of test by electric source wire securing device; Its method of operating is: the weight of applied pressure configuration counterweight assembly as required, is connected the counterweight assembly configured with power lead, the counterweight assembly be connected with power lead is placed on lift rotating equipment; Needing to rotate described lift rotating equipment according to test makes described power lead be in the state to be measured of needs; Described lift rotating equipment has moved reciprocatingly the power lead repeatedly tension-torsion test being in state to be measured up and down.The present invention is simple to operate, and adopt counterweight to test, test repdocutbility is good, tests pulling force torsion simultaneously and applies more even.
Description
Technical field
The present invention relates to a kind of strength test field of household electrical appliances power lead, particularly a kind of tension-torsion test device and method of testing simultaneously can carrying out tensile test and torsional test.
Background technology
Power lead is as one of the components and parts of household electrical appliance indispensability, and its quality directly affects the security performance of complete machine.Many manufacturers are in order to save cost, and the normal power lead of fake and forged commodity that adopts substitutes certified products.The power lead that quality does not pass a test, wire sectional area is too small, and copper factor is low, and the long-time power lead that uses can hot premature aging, and serious meeting causes power supply short circuit, initiation safety problem.
During electric source wire securing device, another is not the potential risk that people pays close attention to, and electric source wire securing device is unreliable, power lead exceedingly can be pulled out utensil, causes back panel wiring terminal to meet with stresses, and can cause open circuit that complete machine cannot be worked for a long time.Under extreme case, power lead live part exposes and directly affects personal safety.
Clearly to the safety requirements of power lead in GB4706.1-2005 " the safety first part of family expenses and similar applications electrical equipment: General Requirement ".According to the complete machine of Different Weight, power lead need stand pulling force and torsional moment test, after off-test power lead displacement must not more than 2 millimeters and power lead itself do not allow damage.
summary of the invention
A kind of tension-torsion test device, it is characterized in that, comprise tension-torsion test platform, electric source wire securing device, counterweight assembly and lift rotating equipment, described electric source wire securing device and torsion device are located at described tension-torsion test platform upper end, and described lift rotating equipment is located at described torsion device lower end;
Wherein said electric source wire securing device is used for fixing power lead to be measured;
Described counterweight assembly is connected with described power lead to be measured and provides lower pulling force for it;
Described lift rotating equipment: be arranged at immediately below described counterweight assembly, it has certain VTOL (vertical take off and landing) stroke, holds up described counterweight assembly when rising to certain altitude and bears the weight of described counterweight assembly; When it drops to certain altitude and described counterweight assembly depart from, described counterweight assembly is suspended on described power lead; Described lift rotating equipment drives described counterweight assembly to rotate by rotation, and described counterweight assembly rotating band is moved described power lead and reversed.
Preferably, also comprise a sample clamping bench, described sample clamping bench comprises lifting table.
Preferably, described sample clamping bench and tension-torsion test mesa base are provided with roller.
Preferably, it also comprises a reversing arrangement, and described power lead to be measured is connected with described counterweight assembly after described reversing arrangement commutation.
Preferably, also comprise one and reel device, described in reel device for shrink with release one section of described power lead.
Preferably, described in reel device and shrink one section of described power lead described counterweight assembly is pulled away from described lift rotating equipment, described in reel device and discharge one section of described power lead described counterweight assembly is put described lift rotating equipment.
Preferably, it comprises Control Component, and the function of described Control Component comprises Auto-counting, automatically startup and suddenly stops.
Present invention also offers a kind of tension-torsion test method, it comprises the following steps:
Be fixed on tension-torsion test platform by needing the power lead of test by electric source wire securing device;
The weight of applied pressure configuration counterweight assembly, is connected the counterweight assembly configured with power lead, the counterweight assembly be connected with power lead is placed on lift rotating equipment as required;
Needing to rotate described lift rotating equipment according to test makes described power lead be in the state to be measured of needs;
Described lift rotating equipment has moved reciprocatingly the power lead repeatedly tension-torsion test being in state to be measured up and down.
Preferably, describedly need to rotate according to test the concrete steps that described lift rotating equipment makes described power lead be in the state to be measured of needs and be:
When needs carry out tensile test, described lift rotating equipment rotates extremely described power lead and is in without turning round state;
When needs carry out tension-torsion test, described lift rotating equipment rotation is in described power lead turns round state entirely.
Preferably, described tension-torsion test device comprises one and reels device, described in reel device for shrink with release one section of described power lead, the using method of this tension-torsion test device comprises:
Be fixed on tension-torsion test platform by needing the power lead of test by electric source wire securing device;
The weight of applied pressure configuration counterweight assembly, is connected the counterweight assembly configured with power lead, the counterweight assembly be connected with power lead is placed on lift rotating equipment as required;
Needing to rotate described lift rotating equipment according to test makes described power lead be in the state to be measured of needs;
Described periodic contraction and release one section of described power lead, completes the power lead repeatedly tension-torsion test being in state to be measured described in making.
The present invention has following beneficial effect:
1. a whole set of test only needs a slip-stick artist just can complete tension-torsion test after sample is seated, and traditional manual test needs 2-3 name slip-stick artist;
2. sample clamping bench height adjustable, is equipped with different fixture fixed samples, replaces original manually fixing, and test result is more reliable, more accurately;
3. test repdocutbility good, avoid different tester's manual test and occur the possibility that test result fluctuates;
4. overcome traditional manual test pulling force torsion and apply uneven problem, more meet standard-required.
Certainly, implement arbitrary product of the present invention might not need to reach above-described all advantages simultaneously.
Accompanying drawing explanation
The tension-torsion test device side view that Fig. 1 provides for the embodiment of the present invention;
The tension-torsion test device vertical view that Fig. 2 provides for the embodiment of the present invention.
Specific embodiment
Embodiment one
Embodiments provide a kind of tension-torsion test device, as shown in Figures 1 and 2, it comprises tension-torsion test platform 1, electric source wire securing device 2, counterweight assembly 3 and lift rotating equipment 4, electric source wire securing device 2 is located at tension-torsion test platform 1 upper end, and lift rotating equipment 2 is located at tension-torsion test platform 1 lower end;
Wherein electric source wire securing device 2 is for fixing power lead to be measured;
Counterweight assembly 3 is connected with power lead to be measured and provides lower pulling force for it;
Lift rotating equipment 2: be arranged at immediately below counterweight assembly 3, it has certain VTOL (vertical take off and landing) stroke, is held up by counterweight assembly 3 and bear the weight of counterweight assembly 3 when rising to certain altitude; When it drops to certain altitude and counterweight assembly 3 depart from, counterweight assembly 3 is suspended on described power lead; Lift rotating equipment 4 drives counterweight assembly 3 to rotate by rotation, and counterweight assembly 3 rotates and drives described power lead to reverse.
In the present embodiment, antenna to be measured is being connected with counterweight assembly by reversing arrangement after electric source wire securing device 2 is fixing, reversing arrangement is fixed pulley 11 herein, power lead between electric source wire securing device 2 and fixed pulley 11 is in horizontal straight condition, the power lead be connected with counterweight assembly 3 after fixed pulley 11 is in vertical state, adopts fixed pulley 11 can reduce commutation while commutation as reversing arrangement and causes frictionally damage to power lead.Reversing arrangement provided by the invention is not limited only to fixed pulley 11, and any other device with commutation function also can apply to the present invention, and the present embodiment is only illustrated and to be described reversing arrangement.
In the present embodiment, be also provided with one and reel device 12, reeling device 12 for shrinking and release one section of power lead to be measured, in this example, reeling device 12 and being located between reversing arrangement and electric source wire securing device 2.Reeling device 12 can pivot, contraction to power lead to be measured and release can be completed by reeling device 12.The logical device that reels is completed once to shrink and also can be controlled by Control Component 13 with the cycle length of release, and once shrink and namely realize primary power source line tension-torsion with release, the number of times completing tension-torsion test also can be controlled by Control Component 13.
In the present embodiment, electric source wire securing device 2 is that two pieces of metal platen are made, and inside pressing plate, rubber layer is housed, and hollows out and facilitates power lead and plug to pass, do not damage power-line plug, overcome the drawback that traditional detection must cut plug in the middle of pressing plate.
Counterweight assembly 3 comprises the counterweight of several standards, has multiple standard test weight for subsequent use in the present embodiment, and the counterweight assembly that can be combined into Different Weight realizes different pulling force and moment of torsion.In the present embodiment, completed a tension-torsion test and referred to a tensile test or a torsional test, tensile test and torsional test can be unified to replace by tension-torsion test.
Lift rotating equipment 4 is a cam-like structure, its rotation by Electric Machine Control lift rotating equipment 4 and lifting, and the rotating speed of lift rotating equipment 4 is controlled, and the speed of its lifting also can control.The present embodiment controls this lift rotating equipment 2 by arranging Control Component 13 on tension-torsion test platform 1, Control Component 13 can complete the Auto-counting to tensile test number of times, also can complete the automatic technique to torsional test number of times, control lift rotating equipment 4 rotation simultaneously and stop with anxious with the startup of lifting.In the present embodiment, the standard of a tensile test is that lift rotating equipment completes a heave period, the standard that torsional test completes is that lift rotating equipment 4 completes a heave period when power lead to be measured is in complete torque condition, and the counterweight that power lead to be measured connects carries out counterweight as required.
In the embodiment of the present invention, also comprise sample clamping bench 33, this sample clamping bench 33 is for placing the electrical appliance be connected with power lead, power lead due to test is all the power lead on finished product electrical equipment usually, so generally all need a sample clamping bench, sample clamping bench also can not be used directly to be positioned on ground for the product that power lead is long.Sample clamping bench 33 upper end is a lifting table, and this lifting table can be elevated the position residing for the concrete size of electrical appliance, shape and power lead, and the principle of concrete lifting is not limited to this.
Also be provided with roller 34 bottom the sample clamping bench 33 that the embodiment of the present invention provides and tension-torsion test platform 1, so just can carry out position adjustment with tension-torsion test platform 1 by any mobile example clamping bench 33 as required.
Embodiment two
Embodiments provide a kind of tension-torsion test method, as shown in Figures 1 and 2, it comprises the following steps its equipment therefor:
Be fixed on tension-torsion test platform 1 by needing the power lead of test by electric source wire securing device 2;
The weight of applied pressure configuration counterweight assembly 3, is connected the counterweight assembly 3 configured with power lead, the counterweight assembly 3 be connected with power lead is placed on lift rotating equipment 4 as required;
Needing to rotate lift rotating equipment 4 according to test makes described power lead be in the state to be measured of needs, and when needs carry out tensile test, lift rotating equipment 4 rotates extremely described power lead and is in without turning round state; The power lead be in without turning round state is in relaxed state in the horizontal direction, and power lead is not through the twisting of any angle;
Lift rotating equipment about 4 has moved reciprocatingly the power lead repeatedly tensile test being in state to be measured.
To the power lead of test needed to be fixed in the step on tension-torsion test platform 1 by electric source wire securing device 4, the electrical appliance be connected with power lead is first fixed on sample clamping bench 33 by usual needs, then adjust on sample clamping bench 33 for placing the height of the platform of electrical appliance, adjustment sample clamping bench 33 and the position relationship of tension-torsion test platform 1, be finally fixed on power lead on electric source wire securing device.
Wherein, lift rotating equipment about 4 has moved reciprocatingly in the step of the power lead repeatedly tension-torsion test being in state to be measured, lift rotating equipment 4 is completed the required time that once pumps and can be controlled by Control Component 13, complete the total time repeatedly pumped also can set simultaneously, this completes the setting to the number of times completing tension-torsion test, also complete the setting to the stressed time of power lead in tension-torsion test simultaneously.
Embodiment three
Embodiments provide a kind of tension-torsion test method, as shown in Figures 1 and 2, the method comprises the following steps its device adopted:
Be fixed on tension-torsion test platform 1 by needing the power lead of test by electric source wire securing device 2;
The weight of applied pressure configuration counterweight assembly 3, is connected the counterweight assembly 3 configured with power lead, the counterweight assembly 3 be connected with power lead is placed on lift rotating equipment 4 as required;
Needing to rotate lift rotating equipment 4 according to test makes described power lead be in the state to be measured of needs, and when needs carry out tension-torsion test, lift rotating equipment 4 rotation is in described power lead and entirely turns round state.State of entirely turning round refers to power lead and twists continuously to greatest extent through single direction under not twisted state, continues twisting and power lead surface insulation can be caused to damage,
Lift rotating equipment about 4 has moved reciprocatingly the power lead repeatedly torsional test being in state to be measured.
To the power lead of test needed to be fixed in the step on tension-torsion test platform 1 by electric source wire securing device 2, the electrical appliance be connected with power lead is first fixed on sample clamping bench 33 by usual needs, then adjust on sample clamping bench 33 for placing the height of the platform of electrical appliance, adjustment sample clamping bench 33 and the position relationship of tension-torsion test platform 1, be finally fixed on power lead on electric source wire securing device 2.
Wherein, lift rotating equipment about 4 has moved reciprocatingly in the step of the power lead repeatedly tension-torsion test being in state to be measured, lift rotating equipment 4 is completed the required time that once pumps and can be controlled by Control Component 13, complete the total time repeatedly pumped also can set simultaneously, this completes the setting to the number of times completing tension-torsion test, also complete the setting to the stressed time of power lead in tension-torsion test simultaneously.
Embodiment four
As shown in Figures 1 and 2, tension-torsion test device 1 comprises one and reels device 12, and reel device 12 for shrinking and release one section of described power lead, the using method of this tension-torsion test device 1 comprises:
Be fixed on tension-torsion test platform 1 by needing the power lead of test by electric source wire securing device 2;
The weight of applied pressure configuration counterweight assembly 3, is connected the counterweight assembly 3 configured with power lead, the counterweight assembly 3 be connected with power lead is placed on lift rotating equipment 4 as required;
Needing to rotate lift rotating equipment 4 according to test makes described power lead be in the state to be measured of needs, and when needs carry out tensile test, described lift rotating equipment rotates extremely described power lead and is in without turning round state; The power lead be in without turning round state is in relaxed state, and power lead is not through the twisting of any angle;
The described device that reels periodically shrinks and release one section of described power lead, completes the power lead repeatedly tensile test being in state to be measured described in making.
To the power lead of test needed to be fixed in the step on tension-torsion test platform 1 by electric source wire securing device 2, the electrical appliance be connected with power lead is first fixed on sample clamping bench 33 by usual needs, then adjust on sample clamping bench 33 for placing the height of the platform of electrical appliance, adjustment sample clamping bench 33 and the position relationship of tension-torsion test platform 1, be finally fixed on power lead on electric source wire securing device 2.
Wherein, lift rotating equipment about 4 has moved reciprocatingly in the step of the power lead repeatedly tension-torsion test being in state to be measured, lift rotating equipment 4 is completed the required time that once pumps and can be controlled by Control Component 13, complete the total time repeatedly pumped also can set simultaneously, this completes the setting to the number of times completing tension-torsion test, also complete the setting to the stressed time of power lead in tension-torsion test simultaneously.
Embodiment five
As shown in Figures 1 and 2, tension-torsion test device comprises one and reels device 12, and reel device 12 for shrinking and release one section of described power lead, the using method of this tension-torsion test device comprises:
Be fixed on tension-torsion test platform 1 by needing the power lead of test by electric source wire securing device 2;
The weight of applied pressure configuration counterweight assembly 3, is connected the counterweight assembly 3 configured with power lead, the counterweight assembly 3 be connected with power lead is placed on lift rotating equipment 4 as required;
Needing to rotate lift rotating equipment 4 according to test makes described power lead be in the state to be measured of needs, and when needs carry out tension-torsion test, lift rotating equipment 4 rotation is in described power lead and entirely turns round state.Complete torque condition refers to power lead and twists continuously through same direction under not twisted state to greatest extent, continues the insulation that twisting can destroy power lead,
Reel device 12 periodically to shrink and release one section of described power lead, described in making, complete the power lead repeatedly torsional test being in state to be measured.
The power lead needing to test is being fixed in the step on tension-torsion test platform 1 by electric source wire securing device, the electrical appliance be connected with power lead is first fixed on sample clamping bench 33 by usual needs, then adjust on sample clamping bench 33 for placing the height of the platform of electrical appliance, adjustment sample clamping bench 33 and the position relationship of tension-torsion test platform 1, be finally fixed on power lead on electric source wire securing device.
Wherein, lift rotating equipment about 4 has moved reciprocatingly in the step of the power lead repeatedly tension-torsion test being in state to be measured, lift rotating equipment 4 is completed the required time that once pumps and can be controlled by Control Component 13, complete the total time repeatedly pumped also can set simultaneously, this completes the setting to the number of times completing tension-torsion test, also complete the setting to the stressed time of power lead in tension-torsion test simultaneously.
This device occurs, has the following advantages compared with traditional manual test:
1. a whole set of test only needs a slip-stick artist just can complete tension-torsion test after sample is seated, and traditional manual test needs 2-3 name slip-stick artist;
2. sample clamping bench height adjustable, is equipped with different fixture fixed samples, replaces original manually fixing, and test result is more reliable, more accurately;
3. test repdocutbility good, avoid different tester's manual test and occur the possibility that test result fluctuates;
4. overcome traditional manual test pulling force torsion and apply uneven problem, more meet standard-required.
The disclosed preferred embodiment of the present invention just sets forth the present invention for helping above.Preferred embodiment does not have all details of detailed descriptionthe, does not limit the embodiment that this invention is only described yet.Obviously, according to the content of this instructions, can make many modifications and variations.This instructions is chosen and is specifically described these embodiments, is to explain principle of the present invention and practical application better, thus makes art technician understand well and to utilize the present invention.The present invention is only subject to the restriction of claims and four corner and equivalent.
Claims (10)
1. a tension-torsion test device, it is characterized in that, comprise tension-torsion test platform, electric source wire securing device, counterweight assembly and lift rotating equipment, described electric source wire securing device is located at described tension-torsion test platform upper end, and described lift rotating equipment is located at described tension-torsion test platform lower end;
Wherein said electric source wire securing device is used for fixing power lead to be measured;
Described counterweight assembly is connected with described power lead to be measured and provides lower pulling force for it;
Described lift rotating equipment: be arranged at immediately below described counterweight assembly, it has certain VTOL (vertical take off and landing) stroke, holds up described counterweight assembly when rising to certain altitude and bears the weight of described counterweight assembly; When it drops to certain altitude and described counterweight assembly depart from, described counterweight assembly is suspended on described power lead; Described lift rotating equipment drives described counterweight assembly to rotate by rotation, and described counterweight assembly rotating band is moved described power lead and reversed, and the counterweight assembly of Different Weight realizes different pulling force and moment of torsion.
2. tension-torsion test device as claimed in claim 1, it is characterized in that, also comprise a sample clamping bench, described sample clamping bench comprises lifting table.
3. tension-torsion test device as claimed in claim 2, it is characterized in that, described sample clamping bench and tension-torsion test mesa base are provided with roller.
4. tension-torsion test device as claimed in claim 1, it is characterized in that, it also comprises a reversing arrangement, and described power lead to be measured is connected with described counterweight assembly after described reversing arrangement commutation.
5. tension-torsion test device as claimed in claim 1, is characterized in that, also comprise one and reel device, described in reel device for shrinking and release one section of described power lead.
6. tension-torsion test device as claimed in claim 5, it is characterized in that, the described device that reels shrinks one section of described power lead described counterweight assembly is pulled away from described lift rotating equipment, described in reel device and discharge one section of described power lead described counterweight assembly is put described lift rotating equipment.
7. the tension-torsion test device according to any one of claim 1-6, it is characterized in that, it comprises Control Component, and described Control Component is used for Auto-counting, the automatically startup to tension-torsion test and suddenly stops.
8. based on tension-torsion test device according to claim 1 a method of testing, it is characterized in that, comprise the following steps:
Be fixed on tension-torsion test platform by needing the power lead of test by electric source wire securing device;
The weight of applied pressure configuration counterweight assembly, is connected the counterweight assembly configured with power lead, the counterweight assembly be connected with power lead is placed on lift rotating equipment as required;
Needing to rotate described lift rotating equipment according to test makes described power lead be in the state to be measured of needs;
Described lift rotating equipment has moved reciprocatingly the power lead repeatedly tension-torsion test being in state to be measured up and down, and the counterweight assembly of Different Weight realizes different pulling force and moment of torsion.
9. tension-torsion test method as claimed in claim 8, is characterized in that, describedly needs to rotate according to test the state concrete steps to be measured that described lift rotating equipment makes described power lead be in needs and is:
When needs carry out tensile test, described lift rotating equipment rotates extremely described power lead and is in without turning round state;
When needs carry out tension-torsion test, described lift rotating equipment rotation is in described power lead turns round state entirely.
10. tension-torsion test method as claimed in claim 8, it is characterized in that, described tension-torsion test device comprises one and reels device, described in reel device for shrinking and release one section of described power lead, the using method of this tension-torsion test device comprises:
Be fixed on tension-torsion test platform by needing the power lead of test by electric source wire securing device;
The weight of applied pressure configuration counterweight assembly, is connected the counterweight assembly configured with power lead, the counterweight assembly be connected with power lead is placed on lift rotating equipment as required;
Needing to rotate described lift rotating equipment according to test makes described power lead be in the state to be measured of needs;
The described device that reels periodically shrinks and release one section of described power lead, and the power lead being in state to be measured described in making completes repeatedly tension-torsion test.
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| CN201310277043.XA CN103344492B (en) | 2013-07-03 | 2013-07-03 | A kind of tension-torsion test device and method |
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| CN201310277043.XA CN103344492B (en) | 2013-07-03 | 2013-07-03 | A kind of tension-torsion test device and method |
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| CN103344492B true CN103344492B (en) | 2015-08-05 |
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| CN104458457A (en) * | 2014-12-31 | 2015-03-25 | 东莞市恒宇仪器有限公司 | Middle-bottom fiber plate zigzag testing machine |
| CN105067515A (en) * | 2015-08-18 | 2015-11-18 | 深圳信测标准技术服务股份有限公司 | Rotary tension testing instrument |
| CN112557177A (en) * | 2020-12-28 | 2021-03-26 | 上海天祥质量技术服务有限公司 | Plug side-pulling test method |
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