CN112304590A - Multi-station hydro-pneumatic spring test bench - Google Patents
Multi-station hydro-pneumatic spring test bench Download PDFInfo
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- CN112304590A CN112304590A CN202011220340.7A CN202011220340A CN112304590A CN 112304590 A CN112304590 A CN 112304590A CN 202011220340 A CN202011220340 A CN 202011220340A CN 112304590 A CN112304590 A CN 112304590A
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- pneumatic spring
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- 238000012360 testing method Methods 0.000 title claims abstract description 48
- 238000012795 verification Methods 0.000 claims abstract description 9
- 238000002474 experimental method Methods 0.000 claims abstract description 3
- 238000009434 installation Methods 0.000 claims abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 10
- 238000007667 floating Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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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 technology provides a multi-station hydro-pneumatic spring test bench which is used for detecting and verifying the reliability and durability of hydro-pneumatic springs and is characterized in that an upright post and a driving cylinder are arranged between a platform and a cross beam, and the upright post can be screwed in and out through an internal stud to enable the cross beam to be lifted and lowered; longitudinal beams are symmetrically arranged on the cross beams on two sides of the upright column, upper flanges are arranged on the longitudinal beams, lower flanges are arranged on the platform corresponding to the upper flanges of the longitudinal beams, and the upper flanges and the lower flanges form 6 stations; the oil gas is suspended between the upper flange and the lower flange; the stretching out and retracting of the piston rod of the driving cylinder pushes the cross beam to swing up and down by taking the stand column as a pivot, sine wave floating is carried out, the up-and-down floating of the hydro-pneumatic spring is realized, a full-stroke running-in experiment is achieved, and the test and verification of the reliability and the durability of the hydro-pneumatic spring before installation are realized.
Description
The technical field is as follows:
the technology is a multi-station test device for detecting and verifying hydro-pneumatic springs, and particularly relates to a multi-station hydro-pneumatic spring test bench.
Background art:
hydro-pneumatic springs are a new technology for vehicle and railway shock absorption, and shock absorption and buffering play decisive key parts in vehicle and railway application, and are directly related to normal operation and safety guarantee of vehicle performance. After the hydro-pneumatic spring is assembled into a finished product, a loading running-in dynamic load test is required to be carried out, and the change conditions of damping and friction force are detected, so that whether the hydro-pneumatic spring meets the requirements of an assembling machine or not is judged.
At present, the running-in dynamic load test of hydro-pneumatic springs is to test the hydro-pneumatic springs on a test line of a test yard by vehicle-mounted operation after loading, has low efficiency, high cost and long test period, has potential safety hazards, can not carry out heavy-load high-speed test, has higher and higher requirements on the quantity and stability of the hydro-pneumatic springs along with the rapid development and increase of large-tonnage heavy vehicles, and urgently needs equipment capable of carrying out damping and friction force change tests of the hydro-pneumatic springs on a laboratory bench.
The invention content is as follows:
aiming at the defects of the prior art, the technology provides a rack capable of carrying out a full-stroke running-in test on hydro-pneumatic springs before loading, the rack can be used for simultaneously detecting a plurality of hydro-pneumatic springs, in particular to a multi-station hydro-pneumatic spring test bench, and the problem of reliability test of the hydro-pneumatic springs before loading is solved; the hydro-pneumatic spring is hung on the test bed, and the driving cylinder pushes the bed to drive the hydro-pneumatic spring to float up and down, so that full-stroke running-in running is realized, and durability verification is performed on the hydro-pneumatic spring.
In order to achieve the purpose, the multi-station hydro-pneumatic spring test bench comprises a platform, a stand column, a cross beam, a longitudinal beam, an upper flange, a base plate, a lower flange, a driving cylinder, a hydro-pneumatic spring, a lower pin, an upper pin, a connecting column, a bolt, a hydro-cylinder connecting pin and a lifting lug, and is particularly characterized in that the stand column is arranged between the platform and the cross beam, the lower end of the stand column is fixed in the middle of the platform, and a plurality of reinforcing plates are arranged on the periphery of the stand column and are respectively welded with the stand column and the; the upper end of the upright post is hinged with a lifting lug on the cross beam through a connecting column, and the lifting lug is welded on the cross beam; longitudinal beams are symmetrically arranged on the cross beams on two sides of the upright post, and the longitudinal beams and the cross beams are welded together; a driving cylinder is arranged between the platform and the cross beam on the outer side of the left longitudinal beam, and the driving cylinder is hinged between the platform and the cross beam through an upper pin and a lower pin; an upper flange is arranged on the longitudinal beam, a lower flange is arranged on the platform corresponding to the upper flange of the longitudinal beam, and a base plate is arranged between the lower flange and the platform; the corresponding upper flange and the lower flange form a station; the hydro-pneumatic spring is suspended between the upper flange and the lower flange through the oil cylinder connecting pin; the stretching out and retracting of the piston rod of the driving cylinder pushes the cross beam to swing up and down by taking the stand column as a pivot, so that the hydro-pneumatic spring between the upper flange of the longitudinal beam and the lower flange of the platform is driven to move, the up-and-down floating of the hydro-pneumatic spring is realized, a full-stroke running-in experiment is achieved, and the test and verification of the reliability and the durability of the hydro-pneumatic spring before the installation are solved.
The platform corresponds upper and lower flange of longeron position and becomes a station, upper and lower flange is equipped with 3 respectively in stand both sides, and the left and right sides forms 6 stations.
The lifting lug is welded with the cross beam together, the nut is arranged between the stud and the threaded sleeve, and the stand column enables the cross beam to rise and fall through the screwing-in and screwing-out of the stud in the threaded sleeve.
The hydro-pneumatic spring is hung between the upper flange and the lower flange through the oil cylinder connecting pin, and the hydro-pneumatic spring can be hung on 1 group, 2 groups and 3 groups for testing and verification.
The longitudinal beam is provided with an upper flange, and the longitudinal beam is arranged on two sides of the upright post respectively; the upper flange is fixedly connected with the longitudinal beam through a screw; and a lower flange is arranged on the platform corresponding to the flange on the longitudinal beam and is fixed with the platform through screws.
Compared with the prior art, this testboard's beneficial effect is: the driving cylinder pushes the cross beam to drive the hydro-pneumatic spring suspended on the longitudinal beam to float up and down, so that running-in verification is realized, the static and dynamic testing characteristics of the hydro-pneumatic spring on a laboratory bench are solved, the testing time is greatly shortened, the testing cost is saved, the safety guarantee is improved, and the heavy load high-speed verification of the hydro-pneumatic spring is increased; the hydro-pneumatic spring is suspended between the platform and the cross beam and is subjected to sine wave floating all the time, so that the durability test verification period of the hydro-pneumatic spring is greatly shortened.
Drawings
FIG. 1 is a schematic structural diagram of a multi-station hydro-pneumatic spring test bench according to the present invention;
FIG. 2 is a schematic front view of a multi-station hydro-pneumatic spring test bed according to the present invention;
FIG. 3 is a schematic diagram of a right side view of a multi-station hydro-pneumatic spring test bed according to the present technology;
FIG. 4 is a schematic view of a multi-station hydro-pneumatic spring test bed, a cross beam and a longitudinal beam in the prior art;
FIG. 5 is a schematic diagram of a multi-station hydro-pneumatic spring test bench, a platform and a column according to the present technology;
FIG. 6 is a schematic view of an upper flange structure of the multi-station hydro-pneumatic spring test bed according to the present technology;
FIG. 7 is a schematic view of a multi-station hydro-pneumatic spring test bed according to the present invention, showing a lower flange structure;
FIG. 8 is a schematic diagram of a multi-station hydro-pneumatic spring test bed according to the present technology, showing a structure of a backing plate;
FIG. 9 is a schematic diagram of a multi-station hydro-pneumatic spring test bed according to the present technology, showing a column structure;
in the figure: the device comprises a platform 1, a vertical column 2, a cross beam 3, a longitudinal beam 4, an upper flange 5, a base plate 6, a lower flange 7, a driving cylinder 8, an oil-gas spring 9, an upper pin 10, a lower pin 11, a connecting column 12, a bolt 13, an oil cylinder connecting pin 14, a lifting lug 15, an ear hole 16, a shaft seat 17, a threaded sleeve 18, a stud 19 and a nut 20.
Detailed Description
The multi-station hydro-pneumatic spring test bench of the present technology is further described in detail with reference to the accompanying drawings and examples, as shown in the drawings, the multi-station hydro-pneumatic spring test bench has the following operation steps:
adjusting the distance between a stud 19 and a threaded sleeve 18 in an upright post 2 between a platform 1 and a cross beam 3 to ensure that the distance between an upper flange 5 and a lower flange 7 on the left side and the right side is equal and equal to the middle position of the stroke of an oil-gas spring 9, and then locking a nut 20; step two, symmetrically suspending hydro-pneumatic springs 9 between an upper flange 5 and a lower flange 7 on two sides of the upright post 2 by using oil cylinder connecting pins 14; step three, filling equal-low-pressure gas into the hydro-pneumatic spring 9, and enabling the piston rod of the driving cylinder 8 to extend and retract to push the cross beam 3 to push the hydro-pneumatic spring 9 by using the upright post 2 as a fulcrum and a sine wave with constant amplitude and frequency, so that a static characteristic test is achieved; pushing the hydro-pneumatic spring 9 by sine waves with different amplitudes and frequencies on a test bed to achieve a dynamic characteristic test; and step five, filling equal-pressure gas into the hydro-pneumatic spring 9, and pushing the hydro-pneumatic spring 9 by sine waves with different amplitudes and frequencies to realize a heavy-load high-speed test.
This technique multistation hydro-pneumatic spring testboard, its structural feature is: the platform 1 is provided with an upright post 2, a shaft seat 17 and a base plate 6, the upright post 2 and the platform 1 are welded together, and a plurality of connecting plates are welded on the circumference of the upright post 2; the shaft seat 17 is welded in the middle of one end of the platform, the platform is welded with the backing plates 6, the backing plates 6 are symmetrically welded on two sides of the upright post 2, and the backing plates 6 are provided with 12 threaded holes, wherein 4 threaded holes are formed in each backing plate; the lower flange 7 is fixed with the backing plate 6 through bolts 13, 3 groups of the lower flange 7 are symmetrically arranged on two sides of the upright post 2, and the lower flange 7 is a double-vertical-plate groove; the upright post 2 comprises a threaded sleeve 18, a stud 19 and a nut 20, and is characterized in that: the screw sleeve 18 and the stud 19 are screwed together through threads, the nut 20 is arranged on the stud 19, the upper end of the upright post 2 is a single lug ring, the single lug ring is hinged with the lifting lug 15 through the oil cylinder connecting pin 14, the lifting lug 15 is welded with the cross beam 3, longitudinal beams 4 are symmetrically arranged on two sides of the lifting lug 15, the longitudinal beams 4 are welded with the cross beam 3, 12 threaded holes are arranged on the longitudinal beams 4, each 4 threaded hole is in one group, and one end of the cross beam 3 is provided with an ear hole 16; the upper flange 5 is connected with the longitudinal beam 4 through a bolt 13, the upper flange 5 is symmetrically fixed at two sides of the lifting lug 15, the upper flange 5 corresponds to the lower flange 7 on the platform 1 in the upper and lower positions one by one, and each upper and lower pair forms a group; the active cylinder 8 is positioned between an ear hole 16 of the cross beam 3 and a shaft seat 17 of the platform 1 and is hinged together through an upper pin 10 and a lower pin 11; the hydro-pneumatic spring 9 is suspended between the upper flange 5 and the lower flange 7 by a connecting column 12.
Claims (5)
1. A multi-station hydro-pneumatic spring test bench is used for testing and verifying the reliability and durability of hydro-pneumatic springs and comprises a platform, a stand column, a cross beam, a longitudinal beam, an upper flange, a base plate, a lower flange, a driving cylinder, a hydro-pneumatic spring, an upper pin, a lower pin, a connecting column, a bolt, a hydro-cylinder connecting pin, a lifting lug, a trunnion and a shaft seat, and is characterized in that the stand column is arranged between the platform and the cross beam, the lower end of the stand column is fixed on the platform, the upper end of the stand column is connected with the lifting lug on the cross beam through the connecting column, the longitudinal beam is symmetrically arranged on the cross beam on two sides of; a driving cylinder is arranged between the platform and the cross beam, the driving cylinder is positioned on the outer side of the left side longitudinal beam, and the driving cylinder is connected between the platform and the cross beam through an upper pin and a lower pin; the longitudinal beam is provided with an upper flange, the platform is provided with a lower flange at a position corresponding to the upper flange of the longitudinal beam, a base plate is arranged between the lower flange and the platform, and the upper flange and the lower flange correspondingly form a station; the hydro-pneumatic spring is suspended between the upper flange and the lower flange through the oil cylinder connecting pin; the stretching out and retracting of the piston rod of the driving cylinder pushes the cross beam to swing up and down by taking the upright post as a pivot to drive the hydro-pneumatic spring to float up and down, so that a full-stroke running-in experiment is achieved, and the test and verification of the reliability and the durability of the hydro-pneumatic spring before the installation are solved.
2. The multi-station hydro-pneumatic spring test bench according to claim 1, wherein the platform is provided with 3 upper and lower flanges corresponding to the longitudinal beam, and the left and right sides of the upper and lower flanges form 6 stations.
3. The multi-station hydro-pneumatic spring test bench according to claim 1, wherein a column is arranged between the platform and the beam, the column is connected with the beam, an upper earring of the column is hinged in a lifting lug through a connecting column, the lifting lug is welded with the beam, and the column can be screwed in and out to enable the beam to rise and fall.
4. The multi-station hydro-pneumatic spring test bench according to claim 1, wherein the hydro-pneumatic spring is suspended between the upper flange and the lower flange through the oil cylinder connecting pin, and the hydro-pneumatic spring can be suspended in 1 group, 2 groups or 3 groups for testing and verification.
5. The multi-station hydro-pneumatic spring test bench according to claim 1, wherein an upper flange is arranged on a longitudinal beam, and the longitudinal beam is arranged on two sides of each upright post; the upper flange is fixedly connected with the longitudinal beam through a screw; and a lower flange is arranged on the platform corresponding to the flange on the longitudinal beam and is fixed with the platform through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011220340.7A CN112304590A (en) | 2020-11-09 | 2020-11-09 | Multi-station hydro-pneumatic spring test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011220340.7A CN112304590A (en) | 2020-11-09 | 2020-11-09 | Multi-station hydro-pneumatic spring test bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112304590A true CN112304590A (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011220340.7A Pending CN112304590A (en) | 2020-11-09 | 2020-11-09 | Multi-station hydro-pneumatic spring test bench |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115235742A (en) * | 2022-06-24 | 2022-10-25 | 北京长征天民高科技有限公司 | Hydro-pneumatic spring running-in test device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2553364Y (en) * | 2002-07-19 | 2003-05-28 | 北京航天万方新技术有限公司 | Hydro-pneumatic spring loading balance running-in tester |
| RU2253752C2 (en) * | 2003-01-14 | 2005-06-10 | Общество с Ограниченной Ответственностью "Буровой инструмент" | Downhole hydraulic motor running-in and test stand |
| CN201749032U (en) * | 2010-05-13 | 2011-02-16 | 三一重机有限公司 | Hydro-pneumatic suspension test bed of mining dump truck |
| CN205067062U (en) * | 2015-07-20 | 2016-03-02 | 王培� | Oil/gas spring hydraulic pressure break -in rack |
| CN214010731U (en) * | 2020-11-09 | 2021-08-20 | 北京航天瑞泰液压技术有限公司 | Multi-station hydro-pneumatic spring test bench |
-
2020
- 2020-11-09 CN CN202011220340.7A patent/CN112304590A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2553364Y (en) * | 2002-07-19 | 2003-05-28 | 北京航天万方新技术有限公司 | Hydro-pneumatic spring loading balance running-in tester |
| RU2253752C2 (en) * | 2003-01-14 | 2005-06-10 | Общество с Ограниченной Ответственностью "Буровой инструмент" | Downhole hydraulic motor running-in and test stand |
| CN201749032U (en) * | 2010-05-13 | 2011-02-16 | 三一重机有限公司 | Hydro-pneumatic suspension test bed of mining dump truck |
| CN205067062U (en) * | 2015-07-20 | 2016-03-02 | 王培� | Oil/gas spring hydraulic pressure break -in rack |
| CN214010731U (en) * | 2020-11-09 | 2021-08-20 | 北京航天瑞泰液压技术有限公司 | Multi-station hydro-pneumatic spring test bench |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115235742A (en) * | 2022-06-24 | 2022-10-25 | 北京长征天民高科技有限公司 | Hydro-pneumatic spring running-in test device and method |
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