CN103175678B - Bracket loading test platform - Google Patents
Bracket loading test platform Download PDFInfo
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- CN103175678B CN103175678B CN201110439294.4A CN201110439294A CN103175678B CN 103175678 B CN103175678 B CN 103175678B CN 201110439294 A CN201110439294 A CN 201110439294A CN 103175678 B CN103175678 B CN 103175678B
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- bearing seat
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- band elastic
- test platform
- elastic part
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Abstract
The invention provides a kind of bracket loading test platform, there is support and bearing seat, two groups of hydraulic cylinders are hinged with between bearing seat and support, two groups of hydraulic cylinders are centrosymmetric with the center of circle of the bearing mounting hole of bearing seat, be provided with two groups of band elastic parts between support and bearing seat, two groups of band elastic parts be arranged in parallel and with the plane symmetry through bearing mounting hole.Owing to being provided with two groups with the band elastic part of the plane symmetry through bearing mounting hole, when bearing seat rotates, one group of tension then in two groups of band elastic parts produces pulling force, another group pressurized produces pressure, pressure and pulling force can produce a new additional reaction square to bearing seat, the direction that the direction and bearing seat of this counter torque self deflect the additional moment produced is contrary, by the size selecting the band elastic part of suitable stiffness factor to control counter torque, itself and additional moment can be offset completely, and then make bracket loading test platform system stability, avoid occurring that the problem of major accident even occurs test failure.
Description
Technical field
The present invention relates to testing table technology, particularly relate to a kind of bracket loading test platform.
Background technology
Along with the raising of plant equipment production efficiency, all trades and professions have all had stricter requirement to the reliability of its plant equipment.In order to improve reliability, the life-span of plant equipment, not only need the raising of design means, the progress of manufacturing process, also need to product carry out really load simulated, experimental check to evaluate design, to test to manufacturing process.A lot of plant equipment, especially the plant equipment in heavy industry industry is all work under severe operating mode, these plant equipment are generally rotating machineries, its load value be not only subject to is huge, and it is complicated, effect while being generally subject to three external force of rectangular coordinate system in space and three moment of face, such as, effect while the impeller of aerogenerator operationally will be subject to three external force of rectangular coordinate system in space and three moment of face, namely all stressed in X, Y, Z axis, and simultaneously by the moment around X, Y, Z axis.
To plant equipment, such as, when the impeller of aerogenerator carries out load test, suppose that impeller is subject to three power and three moments totally six load, and the size separately adjusting these six load is to load value different under simulating different working condition.But, as shown in Figure 1, when carrying out load test, one in two hydraulic cylinders provides thrust, another provides pulling force, because during work, the oil pressure of two hydraulic cylinders 1 is equal, and the rod chamber of hydraulic cylinder 1 is different with the cross-sectional area of rodless cavity, this power F just causing two hydraulic cylinders 1 to export
1with F
2unequal.When bearing seat 2 is subject to small sample perturbations and a small deflection β occurs, then F
1with F
2the arm of force that each generation one is equal, the moment M that therefore also respectively generation one is additional
1, M
2, and M
1with M
2unequal, the conjunction additional moment M that their synthesis one are non-vanishing
2-M
1.Under this closes the effect of additional moment, bearing seat 2 can along being rotated counterclockwise, and this makes drift angle β strengthen further.Drift angle is strengthened and is caused again additional moment to increase further, so forms vicious cycle and finally causes system loss of stability, cause test failure even to occur major accident.
Summary of the invention
The invention provides a kind of bracket loading test platform, poor in order to solve existing bracket loading test platform system stability, easily cause test failure even to occur the problem of major accident.
A kind of bracket loading test platform provided by the invention, there is support and bearing seat, two groups of hydraulic cylinders are hinged with between described bearing seat and described support, described in two groups, hydraulic cylinder is centrosymmetric with the center of circle of the bearing mounting hole of described bearing seat, also being provided with two groups between described support and described bearing seat for described support and described bearing seat provides the band elastic part of elastic force, band elastic part described in two groups to be arranged in parallel and with the plane symmetry through described bearing mounting hole.
Bracket loading test platform as above, wherein, one end of each described band elastic part and described bearing seat is hinged, the other end and described support hinged.
Bracket loading test platform as above, wherein, described band elastic part is volute spring.
Bracket loading test platform as above, wherein, the number often organizing described hydraulic cylinder is equal and be at least one; The number often organizing described band elastic part is equal, and is at least one.
Bracket loading test platform as above, wherein, each described band elastic part deformation quantity when original state is zero.
Bracket loading test platform provided by the invention, owing to being provided with two groups with the band elastic part of the plane symmetry through bearing mounting hole, when load test, when bearing seat rotates, one group of tension then in two groups of band elastic parts produces pulling force, another group pressurized produces pressure, this pulling force and pressure act on bearing seat simultaneously, form one group of acting force and reacting force, therefore they to bearing seat to make a concerted effort be zero, namely new additional force is not produced to bearing seat, do not change the stressed of bracket loading test platform, but, pressure and pulling force can produce a new additional reaction square to bearing seat, the direction that the direction and bearing seat of this counter torque self deflect the additional moment produced is contrary, by the size selecting the band elastic part of suitable stiffness factor to control counter torque, itself and additional moment can be offset completely, and then make bracket loading test platform system stability, avoid occurring that the problem of major accident even occurs test failure.
Accompanying drawing explanation
Fig. 1 is the principle schematic of bracket loading test platform in prior art;
Fig. 2 is the principle schematic of bracket loading test platform embodiment of the present invention.
Embodiment
Fig. 2 is the principle schematic of bracket loading test platform embodiment of the present invention; As shown in Figure 2, the embodiment of bracket loading test platform of the present invention, this bracket loading test platform, there is support 3 and bearing seat 5, two groups of hydraulic cylinders 4 are hinged with between bearing seat 5 and support 3, two groups of hydraulic cylinders 4 are centrosymmetric with the center of circle of the bearing mounting hole of bearing seat 5, and being also provided with two groups between support 3 and bearing seat 5 for described support and described bearing seat provides the band elastic part 8,9 of elastic force, band elastic part 8,9 described in two groups to be arranged in parallel and with the plane symmetry through bearing mounting hole.
Such scheme, owing to being provided with two groups with the band elastic part 8 of the plane symmetry through bearing mounting hole, 9, when load test, when bearing seat 5 drift angle β occurs for rotating, then two groups of band elastic parts 8, one group of tension in 9 produces pulling force, another group pressurized produces pressure, this pulling force and pressure act on bearing seat 5 simultaneously, form one group of acting force and reacting force, therefore they to bearing seat 5 to make a concerted effort be zero, namely new additional force is not produced to bearing seat 5, do not change the stressed of bracket loading test platform, but, pressure and pulling force can produce a new additional reaction square to bearing seat 5, the direction that the direction and bearing seat 5 of this counter torque self deflect the additional moment produced is contrary, by selecting the band elastic part 8 of suitable stiffness factor, 9 sizes controlling counter torque, itself and additional moment can be offset completely, and then make bracket loading test platform system stability, avoid occurring that the problem of major accident even occurs test failure.
Particularly, based on above-described embodiment, be described to carry out load test to the impeller of aerogenerator, then this bracket loading test platform, there is support 3 and bearing seat 5, corresponding installation bearing 6 in the bearing mounting hole of bearing seat 5, the corresponding transition section 7 installing blower fan in the inner ring of bearing 6, drive impeller is rotated the load then generated electricity and is passed to by transition section 7 in the gear case in engine rooms of wind power generators.In addition, two groups of hydraulic cylinders 4 are hinged with between bearing seat 5 and support 3, wherein, the number often organizing hydraulic cylinder 4 is one, the hydraulic cylinder 4 of certain other quantity of employing is also passable, and the quantity of the hydraulic cylinder 4 often arranged in group is identical, is centrosymmetric with the center of circle realized along bearing mounting hole.One end and the bearing seat 5 of hydraulic cylinder 4 are hinged, the other end and support 3 hinged.Two hydraulic cylinders 4 apply F respectively
1, F
2simulate the transverse force that draught fan impeller is subject to.In order to make bearing seat 5 stressed relatively more even, then two groups of hydraulic cylinders 4 are centrosymmetric with the center of circle of the bearing mounting hole of bearing seat 5.In order to provide the stability of this bracket loading test platform, then between support 3 and bearing seat 5, be also provided with two groups of band elastic parts 8, 9, band elastic part 8 described in two groups, 9 be arranged in parallel, and with the plane symmetry through bearing mounting hole, wherein, often organize band elastic part 8, the number of 9 is one, certainly, adopt the band elastic part 8 of other quantity, 9 is also passable, and the band elastic part 8 often arranged in group, the quantity of 9 is identical, with the plane symmetry through bearing mounting hole, band elastic part 8, 9 with through the plane symmetry of bearing mounting hole be in order to bearing seat provider on the contrary, the acting force that size is identical and reacting force.
Further, based on above-described embodiment, the band elastic part 8,9 adopted in this embodiment can be volute spring, certainly, also can adopt the spring of other form.
Further, based on above-described embodiment, in order to just make bearing seat 5 be subject to the effect of band elastic part 8,9 power after rotating, to improve the stress performance of bearing seat 5, then, each band elastic part 8,9 deformation quantity when original state is zero.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (4)
1. a bracket loading test platform, there is support and bearing seat, two groups of hydraulic cylinders are hinged with between described bearing seat and described support, described in two groups, hydraulic cylinder is centrosymmetric with the center of circle of the bearing mounting hole of described bearing seat, it is characterized in that, also being provided with two groups between described support and described bearing seat for described support and described bearing seat provides the band elastic part of elastic force, band elastic part described in two groups to be arranged in parallel and with the plane symmetry through described bearing mounting hole;
One end of each described band elastic part and described bearing seat is hinged, the other end and described support hinged.
2. bracket loading test platform according to claim 1, is characterized in that, described band elastic part is volute spring.
3. bracket loading test platform according to claim 1, is characterized in that, the number often organizing described hydraulic cylinder is equal and be at least one; The number often organizing described band elastic part is equal, and is at least one.
4. bracket loading test platform according to claim 1, is characterized in that, each described band elastic part deformation quantity when original state is zero.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110439294.4A CN103175678B (en) | 2011-12-23 | 2011-12-23 | Bracket loading test platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110439294.4A CN103175678B (en) | 2011-12-23 | 2011-12-23 | Bracket loading test platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103175678A CN103175678A (en) | 2013-06-26 |
| CN103175678B true CN103175678B (en) | 2015-09-16 |
Family
ID=48635688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110439294.4A Active CN103175678B (en) | 2011-12-23 | 2011-12-23 | Bracket loading test platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103175678B (en) |
Citations (9)
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| US6003649A (en) * | 1996-04-03 | 1999-12-21 | Luk Getreibe-Systeme Gmbh | Method and apparatus for actuating a transmission |
| US6112586A (en) * | 1998-08-31 | 2000-09-05 | Ford Global Technologies, Inc. | Effective road profile simulation method and system with tires loss-of-contact compensation |
| CN2582577Y (en) * | 2002-10-22 | 2003-10-29 | 必翔实业股份有限公司 | Restraighting device of front wheel driving motor walking car |
| CN201100211Y (en) * | 2007-05-30 | 2008-08-13 | 唐晓兵 | Hydraulic tray car device |
| CN101451915A (en) * | 2008-12-30 | 2009-06-10 | 吉林大学 | Thrust roller for preventing machine from deflecting by auto-adapting position of wheel and diameter of tyres for roller test stand |
| CN201429499Y (en) * | 2009-07-03 | 2010-03-24 | 中国航空动力机械研究所 | Analogy loader |
| CN201680969U (en) * | 2010-05-14 | 2010-12-22 | 华锐风电科技(集团)股份有限公司 | Load loading device of complete machine test stand of high-power wind turbine generator set |
| CN101976521A (en) * | 2010-10-12 | 2011-02-16 | 浙江大学 | Force feedback steering wheel device applied to driving simulator |
| CN202433179U (en) * | 2011-12-23 | 2012-09-12 | 华锐风电科技(集团)股份有限公司 | Loading test bench |
-
2011
- 2011-12-23 CN CN201110439294.4A patent/CN103175678B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6003649A (en) * | 1996-04-03 | 1999-12-21 | Luk Getreibe-Systeme Gmbh | Method and apparatus for actuating a transmission |
| US6112586A (en) * | 1998-08-31 | 2000-09-05 | Ford Global Technologies, Inc. | Effective road profile simulation method and system with tires loss-of-contact compensation |
| CN2582577Y (en) * | 2002-10-22 | 2003-10-29 | 必翔实业股份有限公司 | Restraighting device of front wheel driving motor walking car |
| CN201100211Y (en) * | 2007-05-30 | 2008-08-13 | 唐晓兵 | Hydraulic tray car device |
| CN101451915A (en) * | 2008-12-30 | 2009-06-10 | 吉林大学 | Thrust roller for preventing machine from deflecting by auto-adapting position of wheel and diameter of tyres for roller test stand |
| CN201429499Y (en) * | 2009-07-03 | 2010-03-24 | 中国航空动力机械研究所 | Analogy loader |
| CN201680969U (en) * | 2010-05-14 | 2010-12-22 | 华锐风电科技(集团)股份有限公司 | Load loading device of complete machine test stand of high-power wind turbine generator set |
| CN101976521A (en) * | 2010-10-12 | 2011-02-16 | 浙江大学 | Force feedback steering wheel device applied to driving simulator |
| CN202433179U (en) * | 2011-12-23 | 2012-09-12 | 华锐风电科技(集团)股份有限公司 | Loading test bench |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103175678A (en) | 2013-06-26 |
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