CN208350256U - Longitudinal diamond shape load test structure of high-precision force-measuring framework - Google Patents
Longitudinal diamond shape load test structure of high-precision force-measuring framework Download PDFInfo
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- CN208350256U CN208350256U CN201820937415.5U CN201820937415U CN208350256U CN 208350256 U CN208350256 U CN 208350256U CN 201820937415 U CN201820937415 U CN 201820937415U CN 208350256 U CN208350256 U CN 208350256U
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Abstract
The utility model improves a kind of longitudinal diamond shape load test structure of high-precision force-measuring framework, the pivoted arm force-measuring framework has two curb girders and two crossbeams, the both ends lateral surface of every crossbeam has high separation load identification point region close to totally four regions of curb girder, is pasted at least one foil gauge on each high separation load identification point region；The foil gauge in four regions is formed into a full-bridge circuit structure again.The utility model can directly be tested to obtain longitudinal diamond shape load of framework entirety, and make longitudinal diamond shape power system of framework entirety that there is biggish level of response on the basis of careful calculating, the disturbance response for simultaneously generating other power systems responds about low two orders of magnitude than test, to ensure the decoupling precision of each power system.The it is proposed of bogie force-measuring framework not only ensure that measuring accuracy, but also make that preferable quasi-static relationship is presented between the load measured and structural strain.
Description
Technical field
The utility model relates to the structures that the vertical load power system of the force-measuring framework to rail vehicle is tested.
Background technique
In the prior art, it is only directed to the test method of three-piece bogie longitudinal direction diamond shape load, i.e., by bogie
Crossbar is fabricated to load cell, directly load-time history of test crossbar under the conditions of practice.For track
The widely applied H-type bogie of car and U-shaped bogie there is no turned to for this type at present due to bogie structure difference
The test structure of frame longitudinal direction diamond shape load.
Utility model content
The object of the present invention is to provide a kind of longitudinal diamond shape load test structures of high-precision force-measuring framework, fill up existing
The blank of technology.
In order to achieve the above purposes, the technical solution adopted by the utility model is:
A kind of longitudinal diamond shape load test structure of high-precision force-measuring framework, the force-measuring framework have two curb girders and two
Crossbeam, it is characterised in that:
The both ends lateral surface of every crossbeam has high separation load identification point region close to the region of curb girder, and claims first
The both ends of root crossbeam are respectively provided with first area and second area, and the both ends of second crossbeam are respectively provided with third region and the 4th
Region, wherein close to same root curb girder, second area is close to another side with the fourth region for first area and third region
Beam；
The first foil gauge is pasted on the first region, is pasted the second foil gauge on the second region, is glued on the third area
Third foil gauge is pasted, the 4th foil gauge is pasted in the fourth region；First foil gauge, the second foil gauge, third foil gauge and
4th foil gauge forms full-bridge circuit structure；
In the full-bridge circuit structure, the first foil gauge and the second foil gauge form adjacent arms, third foil gauge and the 4th strain
Piece forms adjacent arms, the first foil gauge and the pairs of arm of third foil gauge group, the second foil gauge and the 4th pairs of arm of foil gauge group.
Longitudinal diamond shape load test structure of the high-precision force-measuring framework, in which: the first area-the fourth region
It is no more than the equipment mounting base on crossbeam near curb girder.
Longitudinal diamond shape load test structure of the high-precision force-measuring framework, in which: be disposed at least one set of spare complete
Bridge circuit structure.
The utility model is directed to H-type/U-shaped bogie frame mechanical characteristic, close with curb girder junction in truck transom
Cross rail outer face paste foil gauge, and form full-bridge circuit, directly test obtains longitudinal diamond shape load of framework entirety.This reality
There is biggish level of response with the novel longitudinal diamond shape power system for making framework entirety on the basis of careful calculating, while making it
The disturbance response that its power system generates responds about low two orders of magnitude than test, to ensure the decoupling precision of each power system.Bogie
The it is proposed of force-measuring framework not only ensure that measuring accuracy, but also make that preferable quasi-static pass is presented between the load measured and structural strain
System.
Detailed description of the invention
Fig. 1 is the schematic top plan view of 209P type car force-measuring framework；
Figure 1A is the bridge arrangement figure of longitudinal diamond shape load test structure of 209P type car high-precision force-measuring framework；
Fig. 2, Fig. 3 are the strain gauge adhesion regions of 209P type car force-measuring framework longitudinal direction diamond shape load test structure.
Fig. 4 is the schematic top plan view of CW-2000 type subway force-measuring framework；
Fig. 4 A is the bridge arrangement figure of longitudinal diamond shape load test structure of CW-2000 type subway high-precision force-measuring framework；
Fig. 5, Fig. 6 are the strain gauge adhesion regions of CW-2000 type subway force-measuring framework longitudinal direction diamond shape load test structure.
Description of symbols: the first foil gauge of 1-；The second foil gauge of 2-；3- third foil gauge；The 4th foil gauge of 4-；Q1-
One parallactic angle；Bis- parallactic angle of Q2-；Tri- parallactic angle of Q3-；Tetra- parallactic angle of Q4-；51- primary spring cap cylinder；71,72- crossbeam；73,74- curb girder；
The first area S1-, S2- second area, S3- third region, S4- the fourth region；K- equipment mounting base；A- line of symmetry.
Specific embodiment
The manufacturing process for introducing bogie force-measuring framework roughly first is as follows:
(1) the frame construction finite element model that each model is established using finite element method is applied simulation to frame construction and carried
Lotus architecturally designs strain group bridge mode for vertical force system, determines the high separation load identification point region of force-measuring framework.
(2) foil gauge is pasted in high separation load identification point region, foil gauge is connected into full-bridge circuit.
(3) frame construction is subjected to static demarcating on multichannel load force-measuring framework special calibrating testing stand, obtained complete
Corresponding relationship between bridge circuit and calibration load, completes the production of force-measuring framework.
The detailed process of high separation load identification point and the mark in step (3) on framework are found in above-mentioned steps (1)
Determine process, and be not belonging to the utility model it is claimed within the scope of, the public will not be influenced and use the utility model
Load test is carried out, therefore, it will not go into details for the utility model.
In conjunction with diagram, the specific structure for introducing the utility model is as follows:
As shown in Figure 1, being that the plan structure of typical force-measuring framework (by taking 209P type car force-measuring framework as an example) a kind of is shown
It is intended to, there are two crossbeams 71,72 and two curb girders 73,74, the both ends of two curb girders 73,74 to constitute the four of the force-measuring framework
Angle, the quadrangle are respectively designated as a parallactic angle Q1, two parallactic angle Q2, three parallactic angle Q3 and four parallactic angle Q4.
What was certain was that: the both ends lateral surface (side far from framework center line a, similarly hereinafter) of every crossbeam 71,72 leans on
The region of nearside beam 73,74 has high separation load identification point region, herein for convenience of description, claim first crossbeam 71
Both ends are respectively provided with first area S1 and second area S2, and the both ends of second crossbeam 72 is claimed to be respectively provided with third region S3 and
Four region S4, wherein close to same root curb girder 73, second area S2 and the fourth region S4 are equal by first area S1 and third region S3
Close to another curb girder 74.
More specifically, as shown in Figure 2 and Figure 3, the first area S1- the fourth region S4 is no more than on crossbeam 71,72
Near the equipment mounting base K of curb girder 73,74.
The first foil gauge 1 is pasted on the first region, pastes the second foil gauge 2 on the second region, on the third area
Third foil gauge 3 is pasted, the 4th foil gauge 4 is pasted in the fourth region；First foil gauge 1, the second foil gauge 2, third strain
Piece 3 and the 4th foil gauge 4 form full-bridge circuit structure；As shown in Figure 1A, in the full-bridge circuit structure, the first foil gauge 1 with
Second foil gauge 2 forms adjacent arms, and third foil gauge 3 and the 4th foil gauge 4 form adjacent arms, the first foil gauge 1 and third foil gauge 3
The pairs of arm of group, 4 groups of pairs of arms of the second foil gauge 2 and the 4th foil gauge.
In this way, the longitudinal diamond shape load that can greatly improve high-precision force-measuring framework is surveyed by the full-bridge circuit structure
Try the measurement accuracy of structure.
Alternatively, it is also possible to paste more foil gauges on each zone, to form more full-bridge circuit structures, with
At least one set of spare full-bridge circuit structure is arranged on force-measuring framework.
It is that the present invention is applied to CW-2000 trailer force-measuring framework (another typical case referring again to Fig. 4, Fig. 4 A, Fig. 5, Fig. 6
Force-measuring framework) when, used structure is identical as previous embodiment, and it will not be described here.
Accordingly, it is believed that longitudinal diamond shape load test structure of high-precision force-measuring framework provided by the utility model, it can
To be applied on any force-measuring framework.
Claims (3)
1. a kind of longitudinal diamond shape load test structure of high-precision force-measuring framework, which has two curb girders and two cross
Beam, it is characterised in that:
The both ends lateral surface of every crossbeam has high separation load identification point region close to the region of curb girder, and claims first cross
The both ends of beam are respectively provided with first area and second area, and the both ends of second crossbeam are respectively provided with third region and the 4th area
Domain, wherein close to same root curb girder, second area is close to another curb girder with the fourth region for first area and third region；
The first foil gauge is pasted on the first region, pastes the second foil gauge on the second region, pastes on the third area
Three foil gauges paste the 4th foil gauge in the fourth region；First foil gauge, the second foil gauge, third foil gauge and the 4th
Foil gauge forms full-bridge circuit structure；
In the full-bridge circuit structure, the first foil gauge and the second foil gauge form adjacent arms, third foil gauge and the 4th foil gauge group
At adjacent arms, the first foil gauge and the pairs of arm of third foil gauge group, the second foil gauge and the 4th pairs of arm of foil gauge group.
2. longitudinal diamond shape load test structure of high-precision force-measuring framework according to claim 1, it is characterised in that: described
First area-the fourth region is no more than the equipment mounting base on crossbeam near curb girder.
3. longitudinal diamond shape load test structure of high-precision force-measuring framework according to claim 1, it is characterised in that: arrangement
There is at least one set of spare full-bridge circuit structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820937415.5U CN208350256U (en) | 2018-06-15 | 2018-06-15 | Longitudinal diamond shape load test structure of high-precision force-measuring framework |
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| CN201820937415.5U CN208350256U (en) | 2018-06-15 | 2018-06-15 | Longitudinal diamond shape load test structure of high-precision force-measuring framework |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608831A (en) * | 2018-06-15 | 2019-12-24 | 北京交通大学 | Longitudinal diamond load test structure of force measurement framework and manufacturing method thereof |
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2018
- 2018-06-15 CN CN201820937415.5U patent/CN208350256U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608831A (en) * | 2018-06-15 | 2019-12-24 | 北京交通大学 | Longitudinal diamond load test structure of force measurement framework and manufacturing method thereof |
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Effective date of registration: 20200720 Address after: 100044 Beijing city Haidian District Shangyuan Village No. 3 Co-patentee after: CRRC QINGDAO SIFANG Co.,Ltd. Patentee after: Beijing Jiaotong University Address before: 100044 Beijing city Haidian District Shangyuan Village No. 3 Patentee before: Beijing Jiaotong University |