CN112485027A - Dynamic parameter measuring device of double air springs - Google Patents
Dynamic parameter measuring device of double air springs Download PDFInfo
- Publication number
- CN112485027A CN112485027A CN202011435767.9A CN202011435767A CN112485027A CN 112485027 A CN112485027 A CN 112485027A CN 202011435767 A CN202011435767 A CN 202011435767A CN 112485027 A CN112485027 A CN 112485027A
- Authority
- CN
- China
- Prior art keywords
- air spring
- sliding
- sleeper beam
- dynamic parameter
- actuator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 241001669679 Eleotris Species 0.000 claims abstract description 45
- 230000007246 mechanism Effects 0.000 claims abstract description 41
- 230000009977 dual effect Effects 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 7
- 238000012360 testing method Methods 0.000 abstract description 23
- 238000000034 method Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/08—Railway vehicles
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a dynamic parameter measuring device of a double air spring, which comprises a sleeper beam for installing the air spring, wherein two ends of the sleeper beam are respectively connected with a limiting seat in a sliding mode through sliding mechanisms, the sliding mechanisms are respectively detachably connected with the sleeper beam and the limiting seats, and the sleeper beam makes reciprocating linear motion relative to the limiting seats along a single direction through the sliding mechanisms. Through the detachable connection of the sliding mechanism with the limiting seat and the sleeper beam respectively, the movement direction of the sleeper beam can be changed according to the direction of the load, so that the movement direction of the sleeper beam is always the same as the direction of the load, friction is reduced, the eccentricity of the air spring is avoided, the test precision is guaranteed, and test data are more real and reliable.
Description
Technical Field
The invention relates to the field of air spring test devices, in particular to a dynamic parameter measuring device for double air springs.
Background
With the rapid development of railway vehicle technology, the speed of the vehicle is gradually increased, and in consideration of the running quality and running stability of the vehicle, an air spring device is usually adopted to reduce the impact force, so that the running stability of the vehicle is improved, and the damage of a heavy-load vehicle to a road surface is reduced. The air spring consists of an air bag, a base, an upper cover plate and other parts, is one of indispensable parts for controlling vehicle vibration and noise, and has structural parameters and rigidity parameters directly influencing the dynamic quality of the vehicle, such as running stability, curve passing performance and the like. Therefore, testing of various performance parameters of the air spring is very important, wherein stiffness is the main parameter for characterizing the performance of the air spring. The general performance detection platform for the air spring of the vehicle is a common device for detecting the performance of the air spring at present, and can simulate different working conditions and detect the air tightness and static rigidity of the air spring under different load working conditions.
The traditional test method mainly aims at single air spring to carry out parameter test, and can generate larger error due to eccentricity of the air spring in the test process. In addition, the existing air spring detection device has too many parts, so that the measurement precision is reduced, and the reliability is reduced.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a dynamic parameter measuring device for double air springs, which solves the problem that in the prior art, large errors are generated due to eccentricity of the air springs.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:
the utility model provides a dynamic parameter survey device of two air springs, it is including the sleeper beam that is used for installing air spring, and sleeper beam both ends pass through slide mechanism and respectively with a spacing seat sliding connection, and slide mechanism can dismantle with sleeper beam and spacing seat respectively and be connected, and the sleeper beam makes reciprocating linear motion along single direction through slide mechanism relative spacing seat.
Furthermore, in order to be communicated with the air spring to serve as an additional air chamber, a cavity is formed in the sleeper beam, and an air inlet hole communicated with the cavity is formed in the bottom surface of the sleeper beam.
Further, in order to simultaneously carry out dynamic parameter testing on two air springs and be closer to actual conditions and reduce testing errors, the bottom surface of the sleeper beam is provided with two air inlets used for being connected with the air springs.
Further, in order to apply a transverse load or a vertical load to the air spring, a vertical actuator and a transverse actuator are respectively arranged on the top surface and the side surface of the sleeper beam, and the top surface of the air spring is in contact with the bottom surface of the sleeper beam.
Furthermore, in order to avoid the situation that the transverse actuator or the vertical actuator moves under the load which is not generated by the transverse actuator or the vertical actuator when the vertical load or the transverse load is applied, the vertical actuator and the transverse actuator are respectively in sliding connection with the sleeper beam through a transverse sliding mechanism and a vertical sliding mechanism, the transverse sliding mechanism is used for enabling the vertical actuator to do reciprocating linear motion along the Y direction, and the vertical sliding mechanism is used for enabling the transverse actuator to do reciprocating linear motion along the Z direction.
Further, lateral sliding mechanism, slide mechanism and vertical slide mechanism all include the slide of seting up the spout and the slider of embedding spout. Through the sliding fit of the sliding seat and the sliding block, the vertical actuator and the transverse actuator can make reciprocating linear motion along different directions relative to the sleeper beam.
Furthermore, in order to plug an outlet at the lower part of the air spring, the air spring is only provided with the air outlet communicated with the sleeper beam, a tooling plate is arranged below the air spring, the bottom surface of the air spring is in contact with the top surface of the tooling plate, a pressure sensor is arranged on the bottom surface of the tooling plate, and a base is arranged on the bottom surface of the pressure sensor. When the actuator applies load to the sleeper beam, the air spring is stressed to deform, the lower part of the air spring is in direct contact with the tool, and the corresponding load is measured through the pressure sensor. The pressure sensor is fixed through the base, and meanwhile, the base has high rigidity in order to ensure the normal work of the pressure sensor.
Furthermore, in order to test the stress of the two air springs and to make the test data more accurate, the number of the vertical actuators and the number of the transverse actuators are two. Preferably, the two vertical actuators and the transverse actuator are symmetrically arranged, so that the movement balance of the sleeper beam is ensured.
The invention has the beneficial effects that:
1. the sleeper beam is connected with the two limiting seats, so that when the sleeper beam is matched with more than two air springs, the sleeper beam is always kept balanced under the condition of bearing load, and the smooth operation of the test process is ensured.
2. The sliding connection between the sleeper beam and the limiting seat is realized through the sliding mechanism, and the sliding direction between the sleeper beam and the limiting seat is in a single direction, so that when a load is applied to the sleeper beam, the moving direction of the sleeper beam is the same as the acting direction of the load (namely the central lines of the two directions are parallel), and the air spring is prevented from being eccentric in the test process, so that errors caused to the test are avoided, the obtained test value is more real, and more reliable test data are provided for the design and maintenance of a train.
3. The sliding mechanism is respectively detachably connected with the limiting seat and the sleeper beam, and the moving direction of the sleeper beam can be changed according to the direction of the load, so that the moving direction of the sleeper beam is always the same as the direction of the load, the air spring is prevented from being eccentric, the test precision is ensured, and the test data is more real and reliable.
Drawings
Fig. 1 is a front view of a dynamic parameter measuring apparatus of a dual air spring.
Fig. 2 is a plan view of a dynamic parameter measuring device for a dual air spring.
Fig. 3 is an isometric view of a dynamic parameter measurement device for a dual air spring.
Wherein, 1, vertical actuator; 2. a lateral sliding structure; 3. a bolster; 4. assembling a plate; 5. an air spring; 6. a pressure sensor; 7. a sliding mechanism; 8. a vertical sliding mechanism; 9. a lateral actuator; 10. a base; 11. a limiting seat.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.
As shown in fig. 1 to 3, the present disclosure provides a dynamic parameter measurement device for a dual air spring, which includes a body bolster 3 for mounting an air spring 5, a cavity is formed in the body bolster 3, and an air inlet hole communicated with the cavity is formed in a bottom surface of the body bolster 3. The upper part of the air spring 5 is connected with a corresponding fixed air inlet on the sleeper beam 3 through two air inlet columns, and a sealing ring is arranged at the joint to prevent air leakage.
The two ends of the sleeper beam 3 are respectively connected with a limiting seat 11 in a sliding mode through sliding mechanisms 7, the sliding mechanisms 7 are respectively detachably connected with the sleeper beam 3 and the limiting seats 11, and the sleeper beam 3 makes reciprocating linear motion relative to the limiting seats 11 through the sliding mechanisms 7 along a single direction.
In order to measure the load applied by the actuator, two air springs 5 are arranged on the bottom surface of the sleeper beam 3, the top surfaces of the air springs 5 are in contact with the bottom surface of the sleeper beam 3, a tooling plate 4 is arranged below the air springs 5, the bottom surfaces of the air springs 5 are in contact with the top surface of the tooling plate 4, a pressure sensor 6 is arranged on the bottom surface of the tooling plate 4, and a base 10 is arranged on the bottom surface of the pressure sensor 6. The top surface and the side surface of the sleeper beam 3 are respectively provided with two vertical actuators 1 and two transverse actuators 9, each air spring 5 corresponds to one vertical actuator 1 and one transverse actuator 9, and the two vertical actuators 1 and the two transverse actuators 9 are symmetrically arranged.
A tooling plate 4 and a pressure sensor 6 are sequentially arranged below each air spring 5 from top to bottom, and the two pressure sensors 6 are arranged on the base 10. In order to have a great rigidity, the base 10 may be made of an iron plate. The pressure sensor 6 is a spoke type pressure sensor.
Further, the vertical actuator 1 and the horizontal actuator 9 are slidably connected to the bolster 3 through a horizontal sliding mechanism 2 and a vertical sliding mechanism 8, respectively, the horizontal sliding mechanism 2 is used for enabling the vertical actuator 1 to make reciprocating linear motion along the Y direction, and the vertical sliding mechanism 8 is used for enabling the horizontal actuator 9 to make reciprocating linear motion along the Z direction. The transverse sliding mechanism 2, the sliding mechanism 7 and the vertical sliding mechanism 8 comprise sliding seats with sliding grooves and sliding blocks embedded into the sliding grooves. In order to facilitate the disassembly and the assembly, the sliding block and the sliding seat are installed by bolts.
The working principle of the device is as follows:
when the vertical load test is carried out, the vertical actuator 1 applies load, the movement direction of the sleeper beam 3 is provided with a vertical direction (namely the Z direction which is the same as the load direction applied by the vertical actuator 1) through the vertically-installed sliding mechanism 7, so that the movement direction of the device is ensured to be vertical, and the air spring 5 is prevented from generating eccentricity in the test process, and errors are brought to the test.
When a transverse load test is carried out, a transverse actuator 9 applies a load, and a transverse direction (namely a Y direction which is the same as the direction of the load applied by the transverse actuator 9) is arranged in the movement direction of the sleeper beam 3 through the transverse installation sliding mechanism 7 so as to ensure that the movement direction of the device is transverse, and prevent the air spring 5 from generating eccentricity in the test process and bringing errors to the test.
In this embodiment, the X direction is the longitudinal direction of the bolster beam 3, and any two directions of the three directions X, Y, Z are perpendicular to each other. The mounting direction of the sliding mechanism 7 is changed to change the moving direction of the sleeper beam 3.
Claims (7)
1. The dynamic parameter measuring device for the double air springs is characterized by comprising a sleeper beam (3) used for installing the air springs (5), wherein two ends of the sleeper beam (3) are respectively in sliding connection with a limiting seat (11) through sliding mechanisms (7), the sliding mechanisms (7) are respectively in detachable connection with the sleeper beam (3) and the limiting seats (11), and the sleeper beam (3) does reciprocating linear motion along a single direction relative to the limiting seats (11) through the sliding mechanisms (7).
2. The dynamic parameter measurement device of a dual air spring according to claim 1, wherein a cavity is formed in the body bolster (3), and an air inlet hole communicating with the cavity is formed in a bottom surface of the body bolster (3).
3. The dynamic parameter measuring device of a dual air spring according to claim 2, wherein the top surface and the side surface of the body bolster (3) are provided with a vertical actuator (1) and a lateral actuator (9), respectively, and the top surface of the air spring (5) is in contact with the bottom surface of the body bolster (3).
4. The dual air spring dynamic parameter measurement device according to claim 3, wherein the vertical actuator (1) and the lateral actuator (9) are slidably connected to the bolster beam (3) by a lateral sliding mechanism (2) and a vertical sliding mechanism (8), respectively, the lateral sliding mechanism (2) is configured to reciprocate the vertical actuator (1) linearly in the Y direction, and the vertical sliding mechanism (8) is configured to reciprocate the lateral actuator (9) linearly in the Z direction.
5. The dynamic parameter measurement device for a dual air spring according to claim 4, wherein the lateral sliding mechanism (2), the sliding mechanism (7) and the vertical sliding mechanism (8) each include a sliding base having a sliding groove and a sliding block embedded in the sliding groove.
6. The dynamic parameter measurement device for the double air springs according to claim 2, wherein a tooling plate (4) is arranged below the air spring (5), the bottom surface of the air spring (5) is in contact with the top surface of the tooling plate (4), a pressure sensor (6) is arranged on the bottom surface of the tooling plate (4), and a base (10) is arranged on the bottom surface of the pressure sensor (6).
7. A dual air spring dynamic parameter measuring device according to any one of claims 2 to 6, wherein the number of the vertical actuator (1) and the lateral actuator (9) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011435767.9A CN112485027B (en) | 2020-12-10 | Dynamic parameter measuring device for double air springs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011435767.9A CN112485027B (en) | 2020-12-10 | Dynamic parameter measuring device for double air springs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112485027A true CN112485027A (en) | 2021-03-12 |
| CN112485027B CN112485027B (en) | 2024-11-08 |
Family
ID=
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203337353U (en) * | 2013-07-09 | 2013-12-11 | 南车青岛四方机车车辆股份有限公司 | Comprehensive performance testing device of air spring |
| US20140145411A1 (en) * | 2012-11-26 | 2014-05-29 | Veyance Technologies, Inc. | Height sensor for an air spring |
| CN104406871A (en) * | 2014-12-09 | 2015-03-11 | 青岛信森机电技术有限公司 | Vertical air spring fatigue testing machine |
| CN104406870A (en) * | 2014-12-09 | 2015-03-11 | 青岛信森机电技术有限公司 | Air spring fatigue testing machine |
| CN107314901A (en) * | 2017-07-27 | 2017-11-03 | 中车长春轨道客车股份有限公司 | A kind of twin shaft dual rotary rail vehicle axle end bearing dither is test bed |
| CN108801622A (en) * | 2018-07-12 | 2018-11-13 | 株洲时代新材料科技股份有限公司 | Air spring three-dimensional Combined Loading fatigue experimental device and method |
| CN108871746A (en) * | 2018-05-16 | 2018-11-23 | 东北大学 | A kind of train sleeper beam structure fatigue test system and method |
| CN109682615A (en) * | 2019-01-31 | 2019-04-26 | 西南交通大学 | A kind of suspension type single track car body strength test device |
| CN213688940U (en) * | 2020-12-10 | 2021-07-13 | 西南交通大学 | Dynamic parameter measuring device of double air springs |
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140145411A1 (en) * | 2012-11-26 | 2014-05-29 | Veyance Technologies, Inc. | Height sensor for an air spring |
| CN203337353U (en) * | 2013-07-09 | 2013-12-11 | 南车青岛四方机车车辆股份有限公司 | Comprehensive performance testing device of air spring |
| CN104406871A (en) * | 2014-12-09 | 2015-03-11 | 青岛信森机电技术有限公司 | Vertical air spring fatigue testing machine |
| CN104406870A (en) * | 2014-12-09 | 2015-03-11 | 青岛信森机电技术有限公司 | Air spring fatigue testing machine |
| CN107314901A (en) * | 2017-07-27 | 2017-11-03 | 中车长春轨道客车股份有限公司 | A kind of twin shaft dual rotary rail vehicle axle end bearing dither is test bed |
| CN108871746A (en) * | 2018-05-16 | 2018-11-23 | 东北大学 | A kind of train sleeper beam structure fatigue test system and method |
| CN108801622A (en) * | 2018-07-12 | 2018-11-13 | 株洲时代新材料科技股份有限公司 | Air spring three-dimensional Combined Loading fatigue experimental device and method |
| CN109682615A (en) * | 2019-01-31 | 2019-04-26 | 西南交通大学 | A kind of suspension type single track car body strength test device |
| CN213688940U (en) * | 2020-12-10 | 2021-07-13 | 西南交通大学 | Dynamic parameter measuring device of double air springs |
Non-Patent Citations (1)
| Title |
|---|
| 黄彪;邬平波;杨世杰;刘彬彬;: "转向架参数测试台数据处理方法", 交通运输工程学报, no. 06, 15 December 2009 (2009-12-15), pages 58 - 62 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106017889B (en) | A kind of experimental rig and detection method of the degeneration of detection linear rolling guide comprehensive performance | |
| CN110779648B (en) | Cylinder friction force testing device and method | |
| CN104198204A (en) | Straight feed unit comprehensive performance degradation testbed capable of simulating actual working conditions | |
| CN100432618C (en) | Two-dimensional displacement sensor and applied large-measuring range surface figure measuring device | |
| CN208109368U (en) | A kind of air spring rigidity characteristic test apparatus | |
| CN104165765A (en) | Acceleration performance degradation testing method for linear feeding unit | |
| CN106895972B (en) | A kind of stick-slip experimental rig | |
| CN103091070B (en) | Tester for parameter of flow field of gas static pressure restrictor | |
| CN103217267A (en) | Device and method for testing dynamic characteristics parameters of joint part of rolling-sliding combined guide rail | |
| TWI649547B (en) | Device for evaluating rolling resistance of tire | |
| CN103542786A (en) | Device for measuring axial size of throttling groove and flatness of throttling side in servo valve pocket | |
| CN104034522B (en) | Experiment table for detecting static rigidity of rolling linear guide rail pair | |
| CN111811817A (en) | High-precision fluid dynamic pressure sliding bearing comprehensive performance test platform | |
| KR20120065525A (en) | Measuring apparatus for measuring outer diameter of object using displacement sensor | |
| KR101835002B1 (en) | Devices for measurement of hole displacements | |
| CN213688940U (en) | Dynamic parameter measuring device of double air springs | |
| CN110018054B (en) | Multi-station spring bar fatigue tool | |
| CN112485027B (en) | Dynamic parameter measuring device for double air springs | |
| CN112485027A (en) | Dynamic parameter measuring device of double air springs | |
| CN209927629U (en) | Multi-station elastic strip fatigue tool | |
| CN115823067A (en) | Performance and reliability test bench for static pressure actuating oil cylinder | |
| CN201075002Y (en) | Detecting platform for assembling cross-bracing steering frame | |
| CN116124443A (en) | Precision hydraulic valve performance testing tool and experimental method thereof | |
| CN202471036U (en) | Cone bearing shim measuring and selecting apparatus | |
| CN103217294B (en) | Zero point judgment and control mechanism for valve stroke of internal combustion engine air flue current stabilization test bed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |