CN104019981A - Loading device and method for simultaneously loading axial forces on two elastic components through same - Google Patents
Loading device and method for simultaneously loading axial forces on two elastic components through same Download PDFInfo
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- CN104019981A CN104019981A CN201410274582.2A CN201410274582A CN104019981A CN 104019981 A CN104019981 A CN 104019981A CN 201410274582 A CN201410274582 A CN 201410274582A CN 104019981 A CN104019981 A CN 104019981A
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Abstract
The invention relates to a loading device and a method for simultaneously loading axial forces on two elastic components through the loading device, and belongs to the technical field of elastic component torsional fatigue tests. The loading device and the method for simultaneously loading axial forces on two elastic components through the loading device are designed through the parallelogram law of force, and two axial forces same in magnitude are simultaneously loaded on the two elastic components through a vibration exciter, so that the axial forces loaded on the two elastic components are equal in magnitude and opposite in direction. According to the scheme, perpendicular force can be applied just through one vibration exciter, and the axial loads equal in magnitude can be applied to two tested pieces through a parallelogram bar system; the magnitude of the axial forces can be adjusted according to the included angles of the bar system. Therefore, one vibration exciter for axial loading is omitted for a torsional fatigue test which needs both axial loading and radial loading.
Description
Technical field
The present invention relates to flexible member torsional fatigue test technical field, be specifically related to a kind of experiment loading unit and with this device, to two flexible members, load the method for axial force simultaneously.
Background technology
Flexible member, as rubber bushing, stop, resiliency supported, kiss-coating track pins etc., have applied to vehicle hanging, and engine bearer needs in the various mechanical hook-ups of vibration damping, vibration isolation etc. with other.For the quality of testing elastic element, must carry out torsional fatigue test to flexible member.Current multiaxial experiment platform, as the rubber axle sleeve durability degree testing machine of Tianjin Si Dun Mechanical & Electrical Transmission Science and Technology Ltd., or the axle sleeve of MTS company and multiaxis elastic body testing table, once there is one by test specimen, to be tested, radially, axially add respectively vibrator excitation, during tired twisting test, also to increase reverse vibration generator.
Therefore, axially load difficult problem while how to solve flexible member torsional fatigue test, the quantity that simultaneously reduces vibrator becomes technical matters urgently to be resolved hurrily.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention is: how to design a kind of charger and with this device, to two elastic elements, load the method for axial force simultaneously, axially load difficult problem when solving flexible member torsional fatigue test, reduce the quantity of vibrator simultaneously.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of charger, this device is for load axial force to two flexible members simultaneously;
When the medium position between described two flexible members does not have space, this device comprises following structure:
Anterior leverage, rear portion leverage and first dirver, described anterior leverage is positioned at a side of two flexible members, described rear portion leverage is positioned at the opposite side of two flexible members, and described anterior leverage is connected by the first fixture of the first flexible member and the second fixture of the second flexible member with rear portion leverage; Described anterior leverage comprises anterior first, second, third, fourth and fifth bar, and described rear portion leverage comprises rear portion first, second, third, fourth and fifth bar; Described anterior leverage and first, second fixture form anterior parallelogram leverage, and described rear portion leverage and first, second fixture form rear portion parallelogram leverage; In described anterior parallelogram leverage, described anterior the first, the 3rd, the 4th bar and described the first fixture form parallelogram, described front portion second, third, the 5th bar and described the second fixture composition parallelogram; In the parallelogram leverage of described rear portion, described rear portion first, the 3rd, the 4th bar and described the first fixture form parallelogram, described rear portion second, third, the 5th bar and described the second fixture composition parallelogram; Described anterior the 3rd bar is connected by horizon bar with rear portion the 3rd bar, and the mid point of described horizon bar is also hinged with lower pole; Described first dirver is for loading vertical force to described lower pole;
When the medium position between described two flexible members has living space, this device comprises following structure:
The 3rd leverage between two flexible members, and the second driver, described the 3rd leverage comprises the 6th, the 7th, the 8th, the 9th and the tenth bar; Described the 3rd leverage and first, second fixture form the first parallelogram leverage; In described the first parallelogram leverage, described the 6th, the 8th, the 9th bar and described the first fixture form parallelogram, and described the 7th, the 8th, the tenth bar and described the second fixture form parallelogram; Described the 6th, the 7th, the 8th bar is hinged by the first articulated elements, and anterior the 3rd, the 4th, the 5th bar is hinged by the second articulated elements; Described the second driver is for applying vertical force on described the first articulated elements top or the second articulated elements bottom.
Preferably, when the medium position between described two flexible members does not have space, described anterior first, second, third bar is hinged by the 3rd articulated elements, and described anterior the 3rd, the 4th, the 5th bar is hinged by the 4th articulated elements; Described rear portion first, second, the 4th, the 5th bar is connected by pin with rear portion the 3rd bar respectively.
Preferably, when the medium position between described two flexible members does not have space, described anterior the 4th bar is identical with the angle between rear portion the 4th bar and anterior the 5th bar with the angle between anterior the 5th bar, and angle is adjustable.
The present invention also provides a kind of and has utilized described charger to two flexible members, to load the method for axial force simultaneously,
When the medium position between described two flexible members does not have space, the method comprises the following steps:
S1, utilize described first dirver to load vertical force F to described lower pole;
S2, by angular transducer, record the angle α between anterior the 4th bar and anterior the 5th bar, by force analysis, utilize α, F to obtain along the axial and radial component of the power of anterior leverage and rear portion leverage;
When the medium position between described two flexible members has living space, the method comprises the following steps:
S1 ', utilize described the second driver to apply vertical force F ' on described the first articulated elements top or the second articulated elements bottom;
S2 ', by angular transducer, record the angle α ' between the 9th bar and the tenth bar, by force analysis utilize α ', F ' obtain along the power of the 3rd leverage axially and radial component.
(3) beneficial effect
The present invention utilizes parallelogram of forces rule to design a kind of charger and with this device, to two elastic elements, loads the method for axial force simultaneously, it adopts a vibrator to load two axial forces that size is identical to two flexible members simultaneously, the axial force equal and opposite in direction that two elastic elements is loaded, opposite direction, for testing table support, these two axial forces are internal force, can not apply external force to support, less on other charger impact on testing table, not needing increases more device to testing table.And this scheme only need apply vertical force with a vibrator, after parallelogram leverage, just can give two and be applied onesize axial load by test specimen, and according to the angle angle of leverage, can adjust the size of axial force.Concerning the torsional fatigue test that axially, radially all needs to load, reduced by a vibrator axially loading like this.
Accompanying drawing explanation
Fig. 1 is the device front view of the embodiment of the present invention one;
Fig. 2 is the device rear view of the embodiment of the present invention one;
Fig. 3 is the device left view of the embodiment of the present invention one;
Fig. 4 is the device vertical view of the embodiment of the present invention one;
Fig. 5 is the device front view of the embodiment of the present invention two;
Fig. 6 is the device vertical view of the embodiment of the present invention two.
Embodiment
For making object of the present invention, content and advantage clearer, below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.
The invention provides a kind of charger, this device loads while doing tired twisting test for flexible member radial-axial simultaneously, and two flexible members are applied to axial load by test specimen simultaneously;
When the medium position between described two flexible members does not have space, this device comprises following structure:
Anterior leverage, rear portion leverage and first dirver, described anterior leverage is positioned at a side of two flexible members, described rear portion leverage is positioned at the opposite side of two flexible members, and described anterior leverage is connected by the first fixture of the first flexible member and the second fixture of the second flexible member with rear portion leverage; Described anterior leverage comprises anterior first, second, third, fourth and fifth bar, and described rear portion leverage comprises rear portion first, second, third, fourth and fifth bar; Described anterior leverage and first, second fixture form anterior parallelogram leverage, and described rear portion leverage and first, second fixture form rear portion parallelogram leverage; In described anterior parallelogram leverage, described anterior the first, the 3rd, the 4th bar and described the first fixture form parallelogram, described front portion second, third, the 5th bar and described the second fixture composition parallelogram; In the parallelogram leverage of described rear portion, described rear portion first, the 3rd, the 4th bar and described the first fixture form parallelogram, described rear portion second, third, the 5th bar and described the second fixture composition parallelogram; Described anterior the 3rd bar is connected by horizon bar with rear portion the 3rd bar, and the mid point of described horizon bar is also hinged with lower pole; Described first dirver is for loading vertical force to described lower pole;
Described anterior first, second, third bar is hinged by the 3rd articulated elements, and described anterior the 3rd, the 4th, the 5th bar is hinged by the 4th articulated elements; Described rear portion first, second, the 4th, the 5th bar is connected by pin with rear portion the 3rd bar respectively.Described anterior the 4th bar is identical with the angle between rear portion the 4th bar and anterior the 5th bar with the angle between anterior the 5th bar, and angle is adjustable.
When the medium position between described two flexible members has living space, this device comprises following structure:
The 3rd leverage between two flexible members, and the second driver, described the 3rd leverage comprises the 6th, the 7th, the 8th, the 9th and the tenth bar; Described the 3rd leverage and first, second fixture form the first parallelogram leverage; In described the first parallelogram leverage, described the 6th, the 8th, the 9th bar and described the first fixture form parallelogram, and described the 7th, the 8th, the tenth bar and described the second fixture form parallelogram; Described the 6th, the 7th, the 8th bar is hinged by the first articulated elements, and anterior the 3rd, the 4th, the 5th bar is hinged by the second articulated elements; Described the second driver is for applying vertical force on described the first articulated elements top or the second articulated elements bottom.
The present invention also provides a kind of and has utilized described charger to two flexible members, to load the method for axial force simultaneously,
When the medium position between described two flexible members does not have space, the method comprises the following steps:
S1, utilize described first dirver to load vertical force F to described lower pole;
S2, by angular transducer, record the angle α between anterior the 4th bar and anterior the 5th bar, by force analysis, utilize α, F to obtain along the axial and radial component of the power of anterior leverage and rear portion leverage;
When the medium position between described two flexible members has living space, the method comprises the following steps:
S1 ', utilize described the second driver to apply vertical force F ' on described the first articulated elements top or the second articulated elements bottom;
S2 ', by angular transducer, record the angle α ' between the 9th bar and the tenth bar, by force analysis utilize α ', F ' obtain along the power of the 3rd leverage axially and radial component.
With the present invention, the utilization in the tired twisting test of crawler belt pin kiss-coating is illustrated below.
As shown in Figure 1, be the structure embodiment of two medium positions between flexible member charger while there is no space.In figure, 17 is crawler belt pin, and 1 and 7 is two tested flexible members (gum cover) of crawler belt pin kiss-coating, and the medium position between two gum covers does not have space.Rod member 3 and 4,4 and 5,9 and 4,4 and 11 hinged, rod member 12 and 13,13 and 15,14 and 13,16 is connected by pin with 13.Rod member 4 is connected by horizon bar 20 with 13, point articulated in lower pole 10 and horizon bar.Utilize parallelogram member structure, when vibrator loads vertical force F by lower pole 10, rod member 4 and 13 can be subject to vertical force, the anterior leverage 3,4,5,9,11 of process and two is by the fixture 2 of test specimen and 6 front portion (front) the parallelogram leverages that form, and rear portion leverage 12,13,14,15,16 and two is by the fixture 2 of test specimen and 6 rear portion (reverse side) the parallelogram leverages that form, just can give two by test specimen gum cover 1 and gum cover 7, to be applied equal and opposite in direction, the axial force of opposite direction.That is, stressed T1=T2, T3=T4, T1 and T3 equal and opposite in direction, opposite direction, and along with the size variation of bar 9 with 11 angle α of bar, α is larger, and axial force is also larger.Adopt this method, when applying axial force, return by test specimen 1 and 7 and apply radial load, it is the radial component along the acting force of anterior leverage 3,4,5,9,11 and rear portion leverage 12,13,14,15,16, radial component is shown as vertical in Fig. 1, to being radial force by test specimen 1 and 7.By angular transducer, record angle α, by force analysis, utilize α, F just can obtain along the axial and radial component of the power of anterior leverage and rear portion leverage.
Fig. 2 is that the embodiment of the present invention one is at the rear view of the structure diagram of the tired twisting test of crawler belt pin kiss-coating.Rear portion leverage 14,16,15,13,12 and anterior leverage 3,4,5,9,11 are arranged symmetrically with respect to pin axis.
Fig. 3 is that the embodiment of the present invention one is at the left view of the structure diagram of the tired twisting test of crawler belt pin kiss-coating.
While transporting in this way, can vibrator be placed on to testing table top flexibly according to testing table bulk, by portal frame, support vibrator to leverage, make bar 4 and bar 13 be subject to vertical force, be also feasible.
Fig. 5 is the front view of the embodiment of the present invention two, and Fig. 6 is its vertical view, is the structure embodiment of two medium positions between flexible member charger while having living space.Wherein, two are had living space by the middle part of the induration of test specimen 1 and 7 (crawler belt pin) 21 and 8, after appropriate reconstruction fixture 2 and 6, the leverage of one side 3,4,5,9,11 can be arranged in to the middle part of fixture, saved like this one group of leverage, hinged between each bar, by articulated elements 18 tops or articulated elements 19 bottoms apply vertical force, make two by test specimen 1 and 7, to be had axial force to load.The angle α that adjusts rod member 9 and 11, two also can be changed by the suffered axial force of test specimen thereupon.
As can be seen from the above embodiments, the present invention utilizes parallelogram of forces rule to design a kind of charger and with this device, to two elastic elements, loads the method for axial force simultaneously, it adopts a vibrator to load two axial forces that size is identical to two flexible members simultaneously, the axial force equal and opposite in direction that two elastic elements is loaded, opposite direction, for testing table support, these two axial forces are internal force, can not apply external force to support, can make testing table support not be subject to the impact of the axial force of vibrator loading, less on other charger impact on testing table, not needing increases more device to testing table.And this scheme only need apply vertical force with a vibrator, after parallelogram leverage, just can give two and be applied onesize axial load by test specimen, and according to the angle angle of leverage, can adjust the size of axial force.Concerning the torsional fatigue test that axially, radially all needs to load, reduced by a vibrator axially loading like this, reduced experimentation cost.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and distortion, these improvement and distortion also should be considered as protection scope of the present invention.
Claims (4)
1. a charger, is characterized in that, this device is for load axial force to two flexible members simultaneously;
When the medium position between described two flexible members does not have space, this device comprises following structure:
Anterior leverage, rear portion leverage and first dirver, described anterior leverage is positioned at a side of two flexible members, described rear portion leverage is positioned at the opposite side of two flexible members, and described anterior leverage is connected by the first fixture of the first flexible member and the second fixture of the second flexible member with rear portion leverage; Described anterior leverage comprises anterior first, second, third, fourth and fifth bar, and described rear portion leverage comprises rear portion first, second, third, fourth and fifth bar; Described anterior leverage and first, second fixture form anterior parallelogram leverage, and described rear portion leverage and first, second fixture form rear portion parallelogram leverage; In described anterior parallelogram leverage, described anterior the first, the 3rd, the 4th bar and described the first fixture form parallelogram, described front portion second, third, the 5th bar and described the second fixture composition parallelogram; In the parallelogram leverage of described rear portion, described rear portion first, the 3rd, the 4th bar and described the first fixture form parallelogram, described rear portion second, third, the 5th bar and described the second fixture composition parallelogram; Described anterior the 3rd bar is connected by horizon bar with rear portion the 3rd bar, and the mid point of described horizon bar is also hinged with lower pole; Described first dirver is for loading vertical force to described lower pole;
When the medium position between described two flexible members has living space, this device comprises following structure:
The 3rd leverage between two flexible members, and the second driver, described the 3rd leverage comprises the 6th, the 7th, the 8th, the 9th and the tenth bar; Described the 3rd leverage and first, second fixture form the first parallelogram leverage; In described the first parallelogram leverage, described the 6th, the 8th, the 9th bar and described the first fixture form parallelogram, and described the 7th, the 8th, the tenth bar and described the second fixture form parallelogram; Described the 6th, the 7th, the 8th bar is hinged by the first articulated elements, and anterior the 3rd, the 4th, the 5th bar is hinged by the second articulated elements; Described the second driver is for applying vertical force on described the first articulated elements top or the second articulated elements bottom.
2. charger as claimed in claim 1, it is characterized in that, when the medium position between described two flexible members does not have space, described anterior first, second, third bar is hinged by the 3rd articulated elements, and described anterior the 3rd, the 4th, the 5th bar is hinged by the 4th articulated elements; Described rear portion first, second, the 4th, the 5th bar is connected by pin with rear portion the 3rd bar respectively.
3. charger as claimed in claim 1 or 2, it is characterized in that, when the medium position between described two flexible members does not have space, described anterior the 4th bar is identical with the angle between rear portion the 4th bar and anterior the 5th bar with the angle between anterior the 5th bar, and angle is adjustable.
4. utilize the charger described in claim 1 or 2 or 3 to two flexible members, to load a method for axial force simultaneously, it is characterized in that,
When the medium position between described two flexible members does not have space, the method comprises the following steps:
S1, utilize described first dirver to load vertical force F to described lower pole;
S2, by angular transducer, record the angle α between anterior the 4th bar and anterior the 5th bar, by force analysis, utilize α, F to obtain along the axial and radial component of the power of anterior leverage and rear portion leverage;
When the medium position between described two flexible members has living space, the method comprises the following steps:
S1 ', utilize described the second driver to apply vertical force F ' on described the first articulated elements top or the second articulated elements bottom;
S2 ', by angular transducer, record the angle α ' between the 9th bar and the tenth bar, by force analysis utilize α ', F ' obtain along the power of the 3rd leverage axially and radial component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410274582.2A CN104019981B (en) | 2014-06-19 | 2014-06-19 | Charger and simultaneously load the method for axial force with this device to two elastic elements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410274582.2A CN104019981B (en) | 2014-06-19 | 2014-06-19 | Charger and simultaneously load the method for axial force with this device to two elastic elements |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104019981A true CN104019981A (en) | 2014-09-03 |
| CN104019981B CN104019981B (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410274582.2A Expired - Fee Related CN104019981B (en) | 2014-06-19 | 2014-06-19 | Charger and simultaneously load the method for axial force with this device to two elastic elements |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323956A (en) * | 2022-01-10 | 2022-04-12 | 株洲时代新材料科技股份有限公司 | Four-way composite loading fatigue test device for rubber elastic element |
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| JPH08261280A (en) * | 1995-03-20 | 1996-10-08 | Japan Steel Works Ltd:The | Preventing device for transmission of vibration |
| CN202110061U (en) * | 2011-06-14 | 2012-01-11 | 西安建筑科技大学 | Multifunctional pseudo static testing device |
| CN102928295A (en) * | 2012-11-07 | 2013-02-13 | 北京理工大学 | Small-size self-centering one-way loading biaxial tension-compression test device |
| CN103604699A (en) * | 2013-12-04 | 2014-02-26 | 中国飞机强度研究所 | Loading method for two-way tensile test |
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2014
- 2014-06-19 CN CN201410274582.2A patent/CN104019981B/en not_active Expired - Fee Related
Patent Citations (5)
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| US4497466A (en) * | 1981-09-04 | 1985-02-05 | Stein Industrie | Spring support device for pipework |
| JPH08261280A (en) * | 1995-03-20 | 1996-10-08 | Japan Steel Works Ltd:The | Preventing device for transmission of vibration |
| CN202110061U (en) * | 2011-06-14 | 2012-01-11 | 西安建筑科技大学 | Multifunctional pseudo static testing device |
| CN102928295A (en) * | 2012-11-07 | 2013-02-13 | 北京理工大学 | Small-size self-centering one-way loading biaxial tension-compression test device |
| CN103604699A (en) * | 2013-12-04 | 2014-02-26 | 中国飞机强度研究所 | Loading method for two-way tensile test |
Non-Patent Citations (1)
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| 于宏滨: "汽车橡胶件扭转疲劳试验红外测温冷却***的设计", 《2013中国汽车工程学会年会论文集》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323956A (en) * | 2022-01-10 | 2022-04-12 | 株洲时代新材料科技股份有限公司 | Four-way composite loading fatigue test device for rubber elastic element |
| CN114323956B (en) * | 2022-01-10 | 2023-11-03 | 株洲时代新材料科技股份有限公司 | Four-way composite loading fatigue test device for rubber elastic element |
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