CN116593147A - Fatigue test equipment and method using bag type air spring - Google Patents
Fatigue test equipment and method using bag type air spring Download PDFInfo
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- CN116593147A CN116593147A CN202310595184.XA CN202310595184A CN116593147A CN 116593147 A CN116593147 A CN 116593147A CN 202310595184 A CN202310595184 A CN 202310595184A CN 116593147 A CN116593147 A CN 116593147A
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- 238000009661 fatigue test Methods 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title description 10
- 238000012360 testing method Methods 0.000 claims abstract description 19
- 230000000712 assembly Effects 0.000 claims abstract description 6
- 238000000429 assembly Methods 0.000 claims abstract description 6
- 238000010998 test method Methods 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000007246 mechanism Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses fatigue test equipment utilizing a bag-type air spring, which comprises a driving assembly, a first fixed plate, a second fixed plate, a movable plate and at least one bag-type air spring, wherein a driving rod of the driving assembly movably penetrates through the first fixed plate and then is connected with the movable plate, two axial ends of the bag-type air spring are respectively connected with the first fixed plate and the movable plate, and a plurality of mounting assemblies are arranged between the other side of the movable plate and the second fixed plate. The invention also discloses a test method of the fatigue test equipment by using the bag-type air spring. The invention has the beneficial effects that: the driving force of an air spring test product is reduced, and the equipment cost and the energy consumption are reduced; the stroke of the driving assembly can be set smaller, so that the requirement of fatigue test in a smaller space is met; and the load of the bag-type air spring is close to that of the air spring to be tested, the service life is longer, and the service life of the fatigue test equipment is prolonged.
Description
Technical Field
The invention relates to fatigue test equipment, in particular to fatigue test equipment and method for an air spring.
Background
At present, the air spring has fatigue life requirement, and the product is subjected to fatigue test and has high requirement on equipment. The method comprises the following steps: CN115452628A is an air spring damper fatigue test bed, through setting up first test mechanism and second test mechanism, corresponding first connecting piece, second connecting piece are connected with a test piece both ends, first driving piece drives two first eccentric wheels eccentric rotation and two first eccentric wheels and carries out the rotation action about one in the first test mechanism, simultaneously second driving piece drives two second eccentric wheels eccentric rotation and two second eccentric wheels and carries out the rotation action about one in the second test mechanism to drive the test piece and carry out up-and-down motion and carry out fatigue test to the test piece. Such as bulletin number: CN204228406U, an air spring vertical fatigue testing machine, also adopts driving power drive to realize air spring's fatigue test.
The load of the air spring is larger after the air spring is inflated, and particularly when the air spring is inflated with high-pressure air, the load of the air spring is increased to be very high, so that the fatigue equipment is required to have very large driving force, and a motor with higher power is further required, so that the whole equipment is very expensive, the power consumption of the equipment is high, and the use cost is relatively high.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information has been made as prior art that is well known to a person of ordinary skill in the art.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: how to solve the problems of large load after the air spring is inflated, large driving force is needed by the existing fatigue equipment to meet the requirement, so that the equipment has large power consumption, high input cost, easy damage of the equipment and the like.
The invention solves the technical problems by the following technical means:
utilize bag formula air spring's fatigue test equipment, including drive assembly, first fixed plate, second fixed plate, fly leaf, at least one bag formula air spring, drive assembly's actuating lever activity pass behind the first fixed plate with the fly leaf is connected, bag formula air spring's axial both ends are connected respectively first fixed plate with the fly leaf, the opposite side of fly leaf with include a plurality of installation component between the second fixed plate.
When the device is used, the tested air spring is installed on the installation component, and the tested air spring and the bag-type air spring are inflated, so that the elastic force of the bag-type air spring and the elastic force of the tested air spring are balanced in an initial state, and at the moment, the fatigue test is performed on the tested air spring through the up-and-down action of the driving component, so that a large driving force is not needed. The invention reduces the driving force of the air spring test product, and reduces the equipment cost and the energy consumption; the stroke of the driving assembly can be set smaller, so that the requirement of fatigue test in a smaller space is met; and the load of the bag-type air spring is close to that of the air spring to be tested, the service life is longer, and the service life of the fatigue test equipment is prolonged.
Preferably, the first fixing plate is located above the movable plate, the second fixing plate is located below the movable plate, or the first fixing plate is located below the movable plate, and the second fixing plate is located above the movable plate.
Preferably, the guide assembly comprises a guide shaft and a bushing, wherein the bushing is connected with the movable plate, one end of the guide shaft is fixedly connected with the second fixed plate, and the other end of the guide shaft is slidably connected with the bushing.
The guide shaft and the bushing form a guide function, so that the tested air spring is compressed and stretched along the axial direction, and the stability of the fatigue test equipment can be ensured.
Preferably, the driving assembly comprises a motor, a driving wheel, an eccentric wheel, a sliding block and a connecting plate, wherein the motor is in driving connection with the driving wheel, the eccentric wheel is connected with the driving wheel, the driving wheel is not overlapped with the axial direction of the eccentric wheel, and the bottom of the eccentric wheel is connected with the sliding block and is in sliding connection with the connecting plate.
Along with the rotation of the eccentric wheel on the driving wheel, the sliding block is driven to move up and down together, so that the driving rod of the whole fatigue equipment is driven to move up and down.
Preferably, one side of the movable plate, which is close to the bag-type air spring, is connected with the bayonet, and one end of the driving rod, which is close to the bag-type air spring, is connected with the bayonet.
Preferably, the installation component includes first frock, second frock, the connection that first frock can be dismantled the fly leaf, the connection that the second frock can be dismantled the second fixed plate, first frock with the position corresponds about the second frock.
The first tool and the second tool are respectively connected with two ends of the tested air spring, and the first tool and the second tool which are matched can be replaced according to the difference of the tested air spring, so that the adaptability is high.
Preferably, when the number of the bag-type air springs is one, the bag-type air springs are located at the center of the movable plate, and when the number of the bag-type air springs is multiple, the bag-type air springs are uniformly distributed, and the centers of the bag-type air springs are located at the center of the movable plate.
Preferably, the mounting assemblies are uniformly distributed along the central axial direction of the air bag spring.
The bag-type air spring and the air spring to be tested can realize better offset along the axial direction; the volume of the bag-type air spring can be larger, and the simultaneous test requirement of a plurality of tested air springs can be met.
Preferably, the mounting assembly further comprises a support plate, wherein the support plate is connected with one side of the second fixing plate far away from the mounting assembly.
The invention also discloses a test method adopting the fatigue test equipment using the bag-type air spring, which comprises the following steps: the tested air spring is arranged on the installation component, the tested air spring is inflated, and the required air pressure value is inflated according to the test standard; inflating the bladder type air spring; and starting the driving assembly, axially moving the movable plate for a plurality of times, and performing fatigue test on the tested air spring.
The fatigue test method is simple to operate, has small equipment noise, and can meet the fatigue test of different tested air springs.
The invention has the advantages that:
(1) When the device is used, the tested air spring is installed on the installation component, and the tested air spring and the bag-type air spring are inflated, so that the elastic force of the bag-type air spring and the elastic force of the tested air spring are balanced in an initial state, and at the moment, the fatigue test is performed on the tested air spring through the up-and-down action of the driving component, so that a large driving force is not needed. The invention reduces the driving force of the air spring test product, and reduces the equipment cost and the energy consumption; the stroke of the driving assembly can be set smaller, so that the requirement of fatigue test in a smaller space is met; the load of the bag-type air spring is close to that of the air spring to be tested, the service life is longer, and the service life of the fatigue test equipment is prolonged;
(2) The guide shaft and the bushing form a guide function, so that the tested air spring is compressed and stretched along the axial direction, and the stability of the fatigue test equipment can be ensured;
(3) The first tool and the second tool are respectively connected with two ends of the tested air spring, and the first tool and the second tool which are matched can be replaced according to different tested air springs, so that the adaptability is high;
(4) The bag-type air spring and the air spring to be tested can realize better offset along the axial direction; the volume of the bag-type air spring can be larger, so that the simultaneous test requirements of a plurality of tested air springs can be met;
(5) The fatigue test method is simple to operate, has small equipment noise, and can meet the fatigue test of different tested air springs.
Drawings
FIG. 1 is a schematic structural view of a fatigue testing apparatus using a bag-type air spring according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a fatigue testing apparatus using a bag-type air spring according to an embodiment of the present invention;
FIG. 3 is a perspective view of a fatigue testing apparatus utilizing a bladder air spring in accordance with an embodiment of the present invention;
reference numerals in the drawings:
1. a drive assembly; 11. a driving rod; 12. a driving wheel; 13. an eccentric wheel; 14. a slide block; 15. a connecting plate;
2. a first fixing plate;
3. a second fixing plate; 31. a guide shaft;
4. a movable plate; 41. a bayonet; 42. a bushing;
5. a bladder type air spring;
6. a measured air spring;
7. a mounting assembly; 71. a first tool; 72. a second tool;
8. and a support plate.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described in the following in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one:
as shown in fig. 1, 2 and 3, the fatigue test equipment using the bag-type air springs comprises a driving assembly 1, a first fixed plate 2, a second fixed plate 3, a movable plate 4, at least one bag-type air spring 5, a tested air spring 6 and a mounting assembly 7; the driving rod 11 of the driving assembly 1 movably penetrates through the first fixed plate 2 and then is connected with the movable plate 4, the two axial ends of the bag-type air spring 5 are respectively connected with the first fixed plate 2 and the movable plate 4, a plurality of mounting assemblies 7 are arranged between the other side of the movable plate 4 and the second fixed plate 3, and the tested air spring 6 is mounted on the mounting assemblies 7.
Specifically, as shown in fig. 1, the driving assembly 1 includes a motor, a driving wheel 12, an eccentric wheel 13, a sliding block 14, and a connecting plate 15, where the motor is used as a driving piece, the motor is in driving connection with the driving wheel 12, the eccentric wheel 13 is connected with the driving wheel 12, the driving wheel 12 is not coincident with the axial direction of the eccentric wheel 13, the bottom of the eccentric wheel 13 is connected with the sliding block 14, and the sliding block 14 is in sliding connection with the connecting plate 15. The two ends of the connecting plate 15 are connected to the sleeve, the sleeve can be connected with the vertical rod in a sliding manner, and the sleeve moves up and down along with the up and down movement of the connecting plate 15 and has a guiding function. The bottom of the connecting plate 15 is connected with the top end of the driving rod 11. After the driving wheel 12 rotates, the eccentric wheel 13 is driven to rotate together, and the sliding block 14 is driven to move up and down together along with the rotation of the eccentric wheel 13 on the driving wheel 12, so that the driving rod 11 of the whole fatigue equipment is driven to move up and down.
The present embodiment gives only one form of the driving assembly 1, and other mechanisms capable of effecting the up-and-down movement of the driving lever 11 may be applied to the present embodiment.
It should be noted that: in this embodiment, the first fixed plate 2 is preferably located above the movable plate 4, and the second fixed plate 3 is preferably located below the movable plate 4. It may also be that the first fixed plate 2 is located below the movable plate 4, the second fixed plate 3 is located above the movable plate 4, the air spring 5 is located below the air spring 6 to be tested, and the driving assembly 1 is located below the air spring 5.
The first fixing plate 2 and the second fixing plate 3 are fixing devices, a bracket can be arranged on one side of the test device, and the first fixing plate 2 and the second fixing plate 3 are fixed on the bracket or can be fixed in other modes.
In this embodiment, the first fixed plate 2, the second fixed plate 3 and the movable plate 4 are rectangular plates.
The bottom of the driving rod 11 is connected with the movable plate 4 through a bayonet 41, one side of the movable plate 4 close to the bag-type air spring 5 is connected with the bayonet 41, and the bottom end of the driving rod 11 is connected with the bayonet 41. The bayonet 41 may be a frame structure with a U-shaped vertical section, the opening of the bayonet 41 faces downwards, the bayonet 41 vertically passes through the bottom surface of the movable plate 4 and is fixed with the movable plate 4 through bolts, a through hole is formed in the middle of the bayonet 41, and after the driving rod 11 passes through the through hole, the driving rod 11 and the bayonet 41 are fixed together through the two sides of the bayonet 41 transversely screwed into the bolts. The present embodiment provides only one connection method of the driving lever 11 and the movable plate 4, as long as the connection method of the driving lever 11 and the movable plate 4 can be realized.
In this embodiment, the number of the air springs 5 is one, the air springs 5 are located at the center of the movable plate 4, the mounting assemblies 7 are uniformly distributed along the central axis of the air springs 5, that is, the air springs 6 to be tested are uniformly distributed along the central axis of the air springs 5, in this embodiment, two air springs 6 to be tested are symmetrical along two sides of the central axis of the air springs 5, and if three air springs 6 to be tested are located, the center of the triangle surrounded by the three air springs 6 to be tested is located on the central axis of the air springs 5. The arrangement is to ensure that the axial forces of the bladder type air springs 5 and the air springs 6 to be tested can be evenly counteracted.
Of course, if there are a plurality of the air springs 5, the air springs 5 are uniformly distributed, and the center of the air springs 5 is located at the center of the movable plate 4.
The bladder-type air spring 5 and the tested air spring 6 can realize better offset along the axial direction; the volume of the bag-type air spring 5 can be larger, and the simultaneous test requirement of a plurality of tested air springs 6 can be met.
The embodiment further comprises a support plate 8, wherein the support plate 8 is connected with the bottom of the second fixing plate 3 and is used for fixing the whole fatigue testing equipment on a test bench or other positions.
When the embodiment is used, the air spring 6 to be tested is installed on the installation component 7, and the air spring 6 to be tested and the air spring 5 to be tested are inflated, so that the elastic forces of the air spring 5 to be tested and the air spring 6 to be tested are balanced in an initial state. At this time, the fatigue test is performed on the tested air spring 6 by the up-and-down motion of the driving assembly 1, so that no too large driving force is required. The embodiment reduces the driving force of the air spring test product, and reduces the equipment cost and the energy consumption; the stroke of the driving assembly 1 can be set smaller, so that the requirement of fatigue test in a smaller space is met; and the load of the bag-type air spring 5 is close to that of the air spring 6 to be tested, the service life is longer, and the service life of the fatigue test equipment is prolonged.
Embodiment two:
as shown in fig. 1, on the basis of the first embodiment, the present embodiment further includes a guide assembly, where the guide assembly includes a guide shaft 31 and a bushing 42, where the bushing 42 is connected to four corners of the movable plate 4, and the bottom end of the guide shaft 31 is fixedly connected to the second fixed plate 3, and the top end is slidably connected to the bushing 42.
The guide shaft 31 and the bushing 42 form a guide function, so that the tested air spring 6 is compressed and stretched along the axial direction, and the stability of the fatigue test equipment can be ensured.
Embodiment III:
as shown in fig. 1, on the basis of the first embodiment or the second embodiment, the mounting assembly 7 includes a first tool 71 and a second tool 72, the first tool 71 is detachably connected to the movable plate 4, the second tool 72 is detachably connected to the second fixed plate 3, and the first tool 71 corresponds to the second tool 72 in an up-down position. The first tool 71 and the second tool 72 are respectively connected with two ends of the tested air spring 6, and the first tool 71 and the second tool 72 which are matched can be replaced according to the difference of the tested air spring 6, so that the adaptability is high.
Embodiment four:
the embodiment discloses a test method of the fatigue test device using a bag-type air spring according to the third embodiment, which comprises the following steps:
s1: adjusting experimental equipment to enable the stroke of the up-and-down movement of the driving rod 11 to meet the standard; i.e. the driving rod 11 does not exceed the top of the first fixing plate 2 when driving to the highest position;
s2: the tested air spring 6 is arranged between the movable plate 4 and the second fixed plate through the first tool 71 and the second tool 72, the tested air spring 6 is inflated, and the required air pressure value is inflated according to the test standard;
s3: the bag-type air spring 5 is inflated, and the movable plate 4 moves up and down along with the post-driving rod 11, so that the height of the up and down movement is the stroke of the movable plate 4; filling a proper amount of gas to balance the movable plate 4 in the middle of the stroke, wherein the upward force of the tested air spring 6 on the movable plate 4 is exactly counteracted with the downward force of the bag-type air spring 5;
s4: and starting the driving assembly 1, driving the driving rod 11 to move up and down, driving the movable plate 4 to move axially for a plurality of times, and performing fatigue test on the tested air spring 6.
As shown in fig. 1, the driving rod 11 descends, the tested air spring 6 is in a compressed state, and the bag-type air spring 5 is in a stretched state; as shown in fig. 2, the driving rod 11 moves upward, the air spring 6 to be tested is in a stretched state, and the air spring 5 in a compressed state.
If a different tested air spring 6 is tested, the tested air spring 6, the first tool 71 and the second tool 72 are replaced, and the gas volume in the bag-type air spring 5 is adjusted.
In this embodiment, the driving lever 11 can drive the movable plate 4 to move up and down without a large force. The traditional experimental equipment does not have the bag-type air spring 5, the driving rod 11 needs to have great force to descend, and the descending needs to resist the upward elastic force of the tested air spring 6 to the movable plate 4, so the fatigue test method of the embodiment can meet the fatigue test of different tested air springs 6, and the fatigue test method is simple to operate and has equipment noise.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. Utilize bag formula air spring's fatigue test equipment, its characterized in that includes drive assembly, first fixed plate, second fixed plate, fly leaf, at least one bag formula air spring, drive assembly's actuating lever activity pass behind the first fixed plate with the fly leaf is connected, bag formula air spring's axial both ends are connected respectively first fixed plate with the fly leaf, the opposite side of fly leaf with include a plurality of installation component between the second fixed plate.
2. The fatigue testing apparatus using a bag type air spring according to claim 1, wherein the first fixed plate is located above the movable plate, the second fixed plate is located below the movable plate, or the first fixed plate is located below the movable plate, and the second fixed plate is located above the movable plate.
3. The fatigue testing apparatus using a bag type air spring according to claim 1, further comprising a guide assembly including a guide shaft, a bush connected to the movable plate, one end of the guide shaft being fixedly connected to the second fixed plate, and the other end being slidably connected to the bush.
4. The fatigue test apparatus using a bag type air spring according to claim 1, wherein the driving assembly comprises a motor, a driving wheel, an eccentric wheel, a sliding block and a connecting plate, the motor is in driving connection with the driving wheel, the eccentric wheel is connected with the driving wheel, the driving wheel is not overlapped with the eccentric wheel in the axial direction, the bottom of the eccentric wheel is connected with the sliding block, and the sliding block is in sliding connection with the connecting plate.
5. The fatigue testing apparatus using a bag type air spring according to claim 1, wherein the movable plate is connected to the bayonet at one side thereof adjacent to the bag type air spring, and the driving rod is connected to the bayonet at one end thereof adjacent to the bag type air spring.
6. The fatigue test apparatus using a bag type air spring according to claim 1, wherein the mounting assembly comprises a first tool and a second tool, the first tool is detachably connected with the movable plate, the second tool is detachably connected with the second fixed plate, and the first tool corresponds to the second tool in an up-down position.
7. The fatigue testing apparatus using a bag type air spring according to claim 1, wherein when the bag type air spring is one, the bag type air spring is located at a center position of the movable plate, and when the bag type air spring is plural, the plurality of bag type air springs are uniformly distributed, and a center of the plurality of bag type air springs is located at a center position of the movable plate.
8. The fatigue testing apparatus utilizing a bag-type air spring according to claim 1, wherein the mounting assemblies are uniformly distributed along a central axial direction of the bag-type air spring.
9. The fatigue testing apparatus utilizing a bag-type air spring according to claim 1, further comprising a support plate connecting a side of the second fixing plate remote from the mounting assembly.
10. Test method using a fatigue test apparatus using a bag-type air spring according to any of the preceding claims 1-9, characterized by comprising the steps of: the tested air spring is arranged on the installation component, the tested air spring is inflated, and the required air pressure value is inflated according to the test standard; inflating the bladder type air spring; and starting the driving assembly, axially moving the movable plate for a plurality of times, and performing fatigue test on the tested air spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310595184.XA CN116593147A (en) | 2023-05-22 | 2023-05-22 | Fatigue test equipment and method using bag type air spring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310595184.XA CN116593147A (en) | 2023-05-22 | 2023-05-22 | Fatigue test equipment and method using bag type air spring |
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| CN116593147A true CN116593147A (en) | 2023-08-15 |
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| CN202310595184.XA Pending CN116593147A (en) | 2023-05-22 | 2023-05-22 | Fatigue test equipment and method using bag type air spring |
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| CN117168795A (en) * | 2023-10-23 | 2023-12-05 | 无锡知协科技有限公司 | Spring life testing device |
| CN118654875A (en) * | 2024-08-19 | 2024-09-17 | 北方汤臣传动科技有限公司 | Air spring sealing plate pull-out testing device and method |
| CN118654875B (en) * | 2024-08-19 | 2024-11-08 | 北方汤臣传动科技有限公司 | Air spring sealing plate pull-out testing device and method |
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| CN117168795B (en) * | 2023-10-23 | 2024-03-22 | 无锡知协科技有限公司 | Spring life testing device |
| CN118654875A (en) * | 2024-08-19 | 2024-09-17 | 北方汤臣传动科技有限公司 | Air spring sealing plate pull-out testing device and method |
| CN118654875B (en) * | 2024-08-19 | 2024-11-08 | 北方汤臣传动科技有限公司 | Air spring sealing plate pull-out testing device and method |
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