CN113008533A - Fatigue testing device for swing rotating shaft - Google Patents
Fatigue testing device for swing rotating shaft Download PDFInfo
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- CN113008533A CN113008533A CN202011635038.8A CN202011635038A CN113008533A CN 113008533 A CN113008533 A CN 113008533A CN 202011635038 A CN202011635038 A CN 202011635038A CN 113008533 A CN113008533 A CN 113008533A
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- swing
- rod
- testing device
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- fatigue testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a fatigue testing device for a swing rotating shaft, which comprises a base, a frame body, an angle scale, a height adjusting unit, a swing motor, an eccentric rod, a guide rod, a sliding unit, a second connecting rod, a rotating shaft connecting unit and a load assembly, wherein the swing motor is arranged on a height adjusting pushing shaft; the pivot linkage unit is located second connecting rod middle part, and the swing pivot that awaits measuring is connected in pivot linkage unit below. Compared with the prior art, the invention realizes the multiplication of swing load through the structure capable of flexibly adjusting the eccentricity, and realizes the adjustment of the eccentricity distance through the matching of the sliding unit and the guide rod, thereby matching different test strengths according to different test standards.
Description
Technical Field
The invention relates to a fatigue testing device, in particular to a fatigue testing device for a swing rotating shaft.
Background
The swing spindle 14 is a core component of the swing, referring to fig. 2, the swing spindle 14 includes a spindle inner shaft 142 and a spindle outer tube 141, the spindle inner shaft 142 can rotate relative to the spindle outer tube 141, two ends of the spindle inner shaft 142 are connected with connecting plates 145 having U-shaped cross sections, a lower connecting end 143 is disposed below the connecting plates 145, the lower connecting end 143 is connected with a rope body or a rigid swinging rod of the swing, an upper connecting end 144 is disposed above the spindle outer tube 141, and the upper connecting end 144 is connected with a cross rod of the swing. The mechanical strength and the stability of the fit among the outer shaft 141, the inner shaft 142 and the connecting plate 145 of the above structure are the key for determining the fatigue resistance of the swing shaft, but the method of directly loading the weight on the swing and performing the fatigue resistance test by fitting the swing is inefficient, the time consumption is very long, and the swing amplitude is difficult to control.
Disclosure of Invention
The present invention is directed to overcome the above-mentioned drawbacks of the prior art, and provides a fatigue testing device for a swing shaft, which realizes the multiplication of swing load by a structure capable of flexibly adjusting an eccentricity, thereby realizing a fatigue test of the swing shaft with greater strength.
The purpose of the invention can be realized by the following technical scheme:
the invention relates to a fatigue testing device for a swing rotating shaft, which comprises a base, a frame body, an angle scale, a height adjusting unit, a swing motor, an eccentric rod, a guide rod, a sliding unit, a second connecting rod, a rotating shaft connecting unit and a load assembly, wherein specifically:
the base symmetry is provided with 2, therefore all parts in this technical scheme are the symmetry setting.
The frame body is arranged on the base;
the angle scale is vertically arranged on the frame body;
the height adjusting unit is arranged on the base, and a height adjusting pushing shaft of the height adjusting unit is vertically upward;
the swing motor is arranged on the height adjusting pushing shaft, and a swing output shaft of the swing motor faces horizontally;
one end of the eccentric rod is connected with the swing output shaft, and the other end of the eccentric rod is connected with a first connecting rod;
the guide rod is arranged on the eccentric rod;
the sliding unit is arranged on the guide rod and is provided with a stop element;
the second connecting rod is connected between the two sliding units, and the distance between the axis of the second connecting rod and the axis of the swinging output shaft is adjusted through the position adjustment of the sliding units;
the rotating shaft connecting unit is arranged in the middle of the second connecting rod, and the rotating shaft of the swing to be tested is connected below the rotating shaft connecting unit;
the load assembly is connected to the lower connecting end of the swing rotating shaft to be tested.
Further, the guide rod is arranged along the length direction of the eccentric rod.
Further, the sliding unit is sleeved on the eccentric rod.
Furthermore, the sliding unit comprises a sliding sleeve and a support plate connected to the outer wall of the sliding sleeve, the stopping element is arranged on the support plate, and the stopping element is ejected out through the stopping output rod, so that the end part of the stopping output rod is pressed against the guide rod to realize the stopping action.
Further, the height adjusting unit is an electric cylinder or an oil cylinder;
the swing motor is a servo motor;
the stop element is an electric cylinder or an oil cylinder.
Further, the axes of the first connecting rod and the second connecting rod are parallel to the axis of the swing output shaft.
Furthermore, a visual acquisition unit is arranged on one side of the eccentric rod close to the angle scale.
Furthermore, a speed reduction motor is connected between the swing output shaft and the eccentric rod.
Further, the load assembly includes a boom and a boat;
the upper end of the suspender is connected with the lower connecting end, and the lower end of the suspender is connected with the carrying disc;
a plurality of weights are detachably stacked on the carrying disc.
Furthermore, a rack is arranged on the guide rod, a miniature servo trolley is arranged on the sliding unit, and a moving wheel of the miniature servo trolley is a gear meshed with the rack.
Compared with the prior art, the invention has the following technical advantages:
1) this technical scheme realizes the multiplication of swing load through the structure that can adjust the eccentricity in a flexible way to this realizes the fatigue test of the swing pivot of bigger intensity, realizes carrying out the adjustment of eccentric distance according to outside computer terminal's instruction is automatic through the cooperation of sliding element and guide bar among this technical scheme simultaneously, with this to different test standard matching different test intensity.
2) The visual acquisition unit in the technical scheme can monitor and acquire the amplitude of the swing test in real time, and is favorable for realizing accurate feedback adjustment of the swing amplitude through a visual recognition algorithm.
Drawings
Fig. 1 is a fatigue testing device for a swing spindle in the present technical solution;
fig. 2 is a schematic structural view of a swing shaft.
In the figure: 1. the base, 2, the support body, 3, the height adjustment unit, 4, the height adjustment promotes the axle, 5, swing motor, 6, swing output shaft, 7, angle scale, 8, the eccentric rod, 9, the head rod, 10, the guide bar, 11, the slip unit, 12, the second connecting rod, 13, pivot linkage unit, 14, the swing pivot, 15, the vision acquisition unit, 16, the jib, 17, carry the dish, 141, the pivot outer tube, 142, the pivot interior shaft, 143, lower link, 144, go up the link, 145, the connecting plate.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Examples
The fatigue testing device for the swing rotating shaft comprises a base 1, a frame body 2, an angle scale 7, a height adjusting unit 3, a swing motor 5, an eccentric rod 8, a guide rod 10, a sliding unit 11, a second connecting rod 12, a rotating shaft connecting unit 13 and a load assembly, and is shown in figure 1.
The base 1 is provided with 2 symmetrically, therefore all parts in this technical scheme are the symmetrical setting. The support body 2 is arranged on the base 1, and the support body is mainly arranged for placing an angle scale 7. The angle scale 7 is vertically arranged on the frame body 2, and an angle scale of 0-180 degrees is marked on the angle scale.
The height adjusting unit 3 is arranged on the base 1, and a height adjusting pushing shaft 4 of the height adjusting unit 3 is vertically upward; the swing motor 5 is arranged on the height adjusting pushing shaft 4, and a swing output shaft 6 of the swing motor 5 faces horizontally; when the type is selected specifically, the height adjusting unit 3 is an electric cylinder or an oil cylinder, the swing motor 5 is a servo motor, and the stop element is an electric cylinder or an oil cylinder.
One end of the eccentric rod 8 is connected with the swing output shaft 6, the other end of the eccentric rod is connected with a first connecting rod 9, and during specific implementation, a speed reduction motor is further connected between the swing output shaft 6 and the eccentric rod 8.
The guide rod 10 is arranged on the eccentric rod 8, the sliding units 11 are arranged on the guide rod 10, the sliding units 11 are provided with stop elements, the second connecting rod 12 is connected between the two sliding units 11, the distance between the axis of the second connecting rod 12 and the axis of the swinging output shaft 6 is adjusted through the position adjustment of the sliding units 11, and the axes of the first connecting rod 9 and the second connecting rod 12 are parallel to the axis of the swinging output shaft 6.
The rotating shaft connecting unit 13 is arranged in the middle of the second connecting rod 12, and the swing rotating shaft 14 to be tested is connected below the rotating shaft connecting unit 13. The load assembly is attached to the lower attachment end 143 of the swing spindle 14 to be tested.
The guide rod 10 is provided along the length direction of the eccentric rod 8. The sliding unit 11 is sleeved on the eccentric rod 8. The sliding unit 11 includes a sliding sleeve and a support plate connected to the outer wall of the sliding sleeve, the stop element is disposed on the support plate, and the stop element is ejected out through the stop output rod, so that the end of the stop output rod is pressed against the guide rod 10 to realize the stop action.
The eccentric rod 8 is provided with a vision acquisition unit 15 at a side close to the angle scale 7. The vision acquisition unit 15 is a miniature camera or an array of miniature cameras. The vision obtaining unit 15 can monitor and obtain the amplitude of the swing test in real time, and is beneficial to realizing accurate feedback adjustment of the swing amplitude through a vision recognition algorithm. The visual acquisition unit acquires the angle range during swinging in real time, the visual acquisition unit is electrically connected with an external computer terminal, meanwhile, the swinging motor 5 is also electrically connected with the external computer terminal, and after human-computer interaction, an instruction signal can be sent to the swinging motor 5 through the computer terminal, so that the period of forward rotation and reverse rotation of the swinging motor is realized.
A rack is arranged on the guide rod 10, a miniature servo trolley is arranged on the sliding unit 11, and a moving wheel of the miniature servo trolley is a gear meshed with the rack. The swing load is multiplied through the structure for flexibly adjusting the eccentricity, so that the fatigue test of the swing rotating shaft with higher strength is realized, and meanwhile, the eccentricity adjustment is automatically performed according to the instruction of an external computer terminal through the matching of the sliding unit 11 and the guide rod 10 in the technical scheme, so that different test strengths are matched according to different test standards.
The load assembly comprises a boom 16 and a boat 17, the upper end of the boom 16 being connected to the lower connection end 143, and the lower end of the boom 16 being connected to said boat 17. Detachably stacks and puts a plurality of weights on the year dish 17, can load weight to about 300kg according to specific test demand, and when the eccentricity is bigger, the weight of the same mass can realize bigger test intensity.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. A fatigue testing device for a swing spindle, comprising:
the number of the bases (1) is 2;
the frame body (2) is arranged on the base (1);
the angle scale (7) is vertically arranged on the frame body (2);
the height adjusting unit (3) is arranged on the base (1), and a height adjusting pushing shaft (4) of the height adjusting unit (3) is vertically upward;
the swinging motor (5) is arranged on the height adjusting pushing shaft (4), and a swinging output shaft (6) of the swinging motor (5) faces horizontally;
one end of the eccentric rod (8) is connected with the swing output shaft (6), and the other end of the eccentric rod is connected with a first connecting rod (9);
the guide rod (10) is arranged on the eccentric rod (8);
the sliding unit (11) is arranged on the guide rod (10), and the sliding unit (11) is provided with a stop element;
a second connecting rod (12) which is connected between the two sliding units (11) and realizes the adjustment of the distance between the axis of the second connecting rod (12) and the axis of the swing output shaft (6) through the position adjustment of the sliding units (11);
the rotating shaft connecting unit (13) is arranged in the middle of the second connecting rod (12), and the swing rotating shaft (14) to be tested is connected below the rotating shaft connecting unit (13);
and the load assembly is connected to the lower connecting end (143) of the swing rotating shaft (14) to be tested.
2. A fatigue testing device for a swing spindle according to claim 1, wherein the guide bar (10) is provided along a length direction of the eccentric bar (8).
3. A fatigue testing device for a swing spindle according to claim 2, wherein the sliding unit (11) is sleeved on the eccentric rod (8).
4. A fatigue testing device for a swing spindle according to claim 3, wherein the sliding unit (11) comprises a sliding sleeve and a carrier plate connected to the outer wall of the sliding sleeve, the stop element is disposed on the carrier plate, and the stop element is ejected out through the stop output rod, so as to press the end of the stop output rod against the guide rod (10) to realize the stop action.
5. The fatigue testing device for the swing spindle according to claim 4, wherein the height adjusting unit (3) is an electric cylinder or an oil cylinder;
the swing motor (5) is a servo motor;
the stop element is an electric cylinder or an oil cylinder.
6. A fatigue testing device for a swing spindle according to claim 1, wherein the axes of the first connecting rod (9) and the second connecting rod (12) are parallel to the axis of the swing output shaft (6).
7. A fatigue testing device for a swing spindle according to claim 1, wherein a visual acquisition unit (15) is provided at a side of the eccentric lever (8) close to the angle scale (7).
8. A fatigue testing device for a swing spindle according to claim 1, wherein a speed reduction motor is further connected between the swing output shaft (6) and the eccentric rod (8).
9. A fatigue testing device for a swing spindle according to claim 1, wherein the load assembly comprises a boom (16) and a boat (17);
the upper end of the suspender (16) is connected with the lower connecting end (143), and the lower end of the suspender (16) is connected with the carrying tray (17);
the carrying tray (17) is detachably stacked with a plurality of weights.
10. The fatigue testing device for the rotating shaft of the swing as claimed in claim 1, wherein the guide rod (10) is provided with a rack, the sliding unit (11) is provided with a micro servo trolley, and the moving wheel of the micro servo trolley is a gear meshed with the rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011635038.8A CN113008533A (en) | 2020-12-31 | 2020-12-31 | Fatigue testing device for swing rotating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011635038.8A CN113008533A (en) | 2020-12-31 | 2020-12-31 | Fatigue testing device for swing rotating shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113008533A true CN113008533A (en) | 2021-06-22 |
Family
ID=76384106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011635038.8A Withdrawn CN113008533A (en) | 2020-12-31 | 2020-12-31 | Fatigue testing device for swing rotating shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113008533A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2457592A1 (en) * | 2004-03-10 | 2004-06-06 | Chandreka P. Ballmick | Horizontal rotating amusement swing |
| CN201311350Y (en) * | 2008-05-26 | 2009-09-16 | 上海市轴承技术研究所 | High-speed radial reciprocating-oscillation tester |
| CN204008141U (en) * | 2014-07-30 | 2014-12-10 | 人本集团有限公司 | The axial load maintainer of bearing work condition simulating test machine for double mass flywheel |
| CN205103021U (en) * | 2015-11-06 | 2016-03-23 | 深圳天祥质量技术服务有限公司 | Swing fatigue test machine |
| CN207133037U (en) * | 2017-07-21 | 2018-03-23 | 长春中科远创汽车技术开发有限公司 | A kind of automobile rear seat handle adjusting durability test apparatus |
| CN110207988A (en) * | 2019-06-10 | 2019-09-06 | 武汉理工大学 | Marine engine connecting rod liner wear simulation test device and test method |
| CN209432423U (en) * | 2019-01-21 | 2019-09-24 | 湖南联诚轨道装备有限公司 | Reciprocating movement sealing part Detecting data |
| CN209961484U (en) * | 2019-06-10 | 2020-01-17 | 武汉理工大学 | Marine engine connecting rod bush abrasion simulation test device |
| CN210037215U (en) * | 2019-03-20 | 2020-02-07 | 浙江铁流离合器股份有限公司 | Torsion endurance constant torque testing machine for automobile dry friction type clutch driven disc assembly |
-
2020
- 2020-12-31 CN CN202011635038.8A patent/CN113008533A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2457592A1 (en) * | 2004-03-10 | 2004-06-06 | Chandreka P. Ballmick | Horizontal rotating amusement swing |
| CN201311350Y (en) * | 2008-05-26 | 2009-09-16 | 上海市轴承技术研究所 | High-speed radial reciprocating-oscillation tester |
| CN204008141U (en) * | 2014-07-30 | 2014-12-10 | 人本集团有限公司 | The axial load maintainer of bearing work condition simulating test machine for double mass flywheel |
| CN205103021U (en) * | 2015-11-06 | 2016-03-23 | 深圳天祥质量技术服务有限公司 | Swing fatigue test machine |
| CN207133037U (en) * | 2017-07-21 | 2018-03-23 | 长春中科远创汽车技术开发有限公司 | A kind of automobile rear seat handle adjusting durability test apparatus |
| CN209432423U (en) * | 2019-01-21 | 2019-09-24 | 湖南联诚轨道装备有限公司 | Reciprocating movement sealing part Detecting data |
| CN210037215U (en) * | 2019-03-20 | 2020-02-07 | 浙江铁流离合器股份有限公司 | Torsion endurance constant torque testing machine for automobile dry friction type clutch driven disc assembly |
| CN110207988A (en) * | 2019-06-10 | 2019-09-06 | 武汉理工大学 | Marine engine connecting rod liner wear simulation test device and test method |
| CN209961484U (en) * | 2019-06-10 | 2020-01-17 | 武汉理工大学 | Marine engine connecting rod bush abrasion simulation test device |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210622 |
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| WW01 | Invention patent application withdrawn after publication |