CN103241262B - A kind of heavy loading locomotive fender guard and guard method - Google Patents
A kind of heavy loading locomotive fender guard and guard method Download PDFInfo
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- CN103241262B CN103241262B CN201310202529.7A CN201310202529A CN103241262B CN 103241262 B CN103241262 B CN 103241262B CN 201310202529 A CN201310202529 A CN 201310202529A CN 103241262 B CN103241262 B CN 103241262B
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Abstract
The invention discloses a kind of heavy loading locomotive fender guard and guard method.In order to solve the problem that existing heavy loading locomotive fender guard is difficult to play a protective role, described heavy loading locomotive fender guard comprises hitch, from plate, energy disperser, striker, deformation energy absorption element.Energy disperser, deformation energy absorption element, striker power-absorbing are pressed certain design sequence by fender guard of the present invention and guard method; three is combined; when locomotive normally runs and is subject to abnormal collision, impact; work in order; utilization cost can be saved to greatest extent, can play a protective role to greatest extent again.
Description
Technical field
The present invention relates to locomotive fender guard field, be specially a kind of heavy loading locomotive fender guard and guard method.
Background technology
The collision prevention device of current heavy loading locomotive: one absorbs energy with energy disperser, as shown in Figure 1.When locomotive is impacted or collide, pass to energy disperser after hitch is stressed, if when impulsive force is less than energy disperser maximum resistance, energy disperser passes through compression and the reply of one or many, impact or collision energy is dissipated; When impulsive force is greater than energy disperser maximum resistance, energy disperser is crushed to death, and becomes rigidity, if impulsive force is excessive, then can damage locomotive and driver and conductor.The second is, at energy disperser afterbody, deformation energy absorption element is housed, energy disperser and deformation energy absorption element is utilized to carry out energy-absorbing, this mode due to by draw gear shoulder and the restriction of striker distance, is that the energy absorption of the deformation energy absorption element of design is limited or be that deformation energy absorption element can not play it and all acts on; The third is, on the hitch top of car body front end, striker is housed, and wishes to carry out certain protection when transshipping, but this mode is unreasonable due to the design of distortion trigger force, does not have protection metamorphosis or acts on extremely limited.
Summary of the invention
In order to overcome the deficiency that existing heavy loading locomotive fender guard is difficult to play a protective role; the present invention aims to provide a kind of heavy loading locomotive fender guard and guard method; energy disperser, deformation energy absorption element, striker power-absorbing are pressed certain design sequence by this fender guard and guard method; three is combined; when locomotive normally runs and is subject to abnormal collision, impact; work in order, utilization cost can be saved to greatest extent, can play a protective role to greatest extent again.
To achieve these goals, the technical solution adopted in the present invention is:
A kind of heavy loading locomotive fender guard, comprise the couple yoke be contained in coupler pocket, hitch, from plate, energy disperser, deformation energy absorption element and the striker power-absorbing in coupler pocket outside; Its constructional feature is, described hitch is connected by hook pin with couple yoke, described striker power-absorbing is fixed on draw beam and (can for convenience detachly changes), described energy disperser is contained in couple yoke, be contained between coupler butt and energy disperser from plate, described deformation energy absorption element is fixed on the afterbody in coupler pocket and contacts with energy disperser; The hook of described striker power-absorbing and hitch take between distance L be that the range L1 of energy disperser adds 20mm ~ 30mm;
The hook of described striker power-absorbing and hitch take between distance L be that the range L1 of energy disperser adds 20mm ~ 30mm; The extreme length L2 of described deformation energy absorption element plastic deformation is that the length of striker power-absorbing plastic deformation adds 20mm ~ 30mm;
The maximum resistance of described energy disperser is not more than the maximum compression load F that car body can bear; The span of the static trigger force F2 of described deformation energy absorption element plastic deformation is 1.0F< F2<1.1F, the span of the static trigger force F3 of described striker power-absorbing plastic deformation is 500KN ~ 800KN, and F2+F3<1.28F.
Further, the invention provides a kind of method utilizing above-mentioned heavy loading locomotive fender guard to protect heavy loading locomotive:
1) when locomotive normally run, connect hang, braking time, the impact energy of generation is only absorbed by energy disperser;
2) when locomotive is subject to the collision impact of improper utilization, and its energy is less than the energy of energy disperser and the static trigger force F of deformation energy absorption element plastic deformation
2during × (20 ~ 30mm) × performance coeffcient 0.85 sum, adopt two-stage anticollision impact protection device protection locomotive:
First order anticollision impact protection device by hitch, couple yoke, form from plate, energy disperser, when impact energy is less than the energy of energy disperser, first order anticollision impacting start, power-absorbing is energy disperser;
Second stage anticollision impact protection device by hitch, couple yoke, form from plate, energy disperser, deformation energy absorption element, is greater than the energy of energy disperser when impact energy but is less than the energy of energy disperser and the static trigger force F of deformation energy absorption element plastic deformation
2during × (20 ~ 30mm) × performance coeffcient 0.85 sum, now deformation energy absorption element part generation plastic deformation absorbs energy;
3) when locomotive is subject to the collision impact of improper utilization, and its energy is greater than the energy of energy disperser and the static trigger force F of deformation energy absorption element plastic deformation
2during × (20 ~ 30mm) × performance coeffcient 0.85 sum, adopt three grades of anticollision impact protection device protection locomotives:
First order anticollision impact protection device is by hitch, couple yoke, form from plate, energy disperser, and power-absorbing is energy disperser;
Second stage anticollision impact protection device is by hitch, couple yoke, form from plate, energy disperser, deformation energy absorption element, and now deformation energy absorption element part generation plastic deformation absorbs energy;
Third stage anticollision impact protection device is by hitch, couple yoke, form from plate, energy disperser, deformation energy absorption element, striker power-absorbing, and now the remaining undeformable part of deformation energy absorption element and striker power-absorbing plastic deformation occur jointly and absorb energy.
Above structure and method, three by certain method of designing, combines by the present invention by energy disperser, deformation energy absorption element, striker power-absorbing, when locomotive normally runs with abnormal collision, impact, works in order, forms three-level protective.
Concrete guard method of the present invention is:
The maximum compression load F that can bear with car body is benchmark, selects the maximum resistance of energy disperser to be not more than F.
The span of the static trigger force F2 of deformation energy absorption element plastic deformation is 1.0F< F2<1.1F, the span of the static trigger force F3 of striker power-absorbing plastic deformation is 500KN ~ 800KN, F2+F3<1.28F; The distance L of striker power-absorbing tip to face distance hook shoulder equals the range L1+(20mm ~ 30mm of energy disperser); The extreme length L2 of deformation energy absorption element plastic deformation equals the length of (20mm ~ 30mm)+striker power-absorbing plastic deformation.Under normal operation, connecting extension, brake condition, the energy produced is absorbed by energy disperser; At abnormal running, when there is Minor Accident, adopt second stage protection; When there is comparatively serious accident, then adopt third stage protection.
When locomotive normally run, connect hang, braking time, the impact energy of generation is absorbed by energy disperser.Deformation energy absorption element, striker power-absorbing do not play distortion energy-absorbing function.
When locomotive is subject to less abnormal collision impact, then adopt two-stage anticollision surge protection:
When impacting or collision energy is less than the energy of energy disperser, first order anticollision impact protection device is by hitch, couple yoke, form from plate, energy disperser, and power-absorbing is energy disperser.
When to impact or collision energy is greater than the energy of energy disperser and is less than the energy+F of energy disperser
2× (20 ~ 30mm) × 0.85(performance coeffcient) time, second stage anticollision impact protection device is by hitch, couple yoke, form from plate, energy disperser, deformation energy absorption element, and now the thin circular cylinder part generation plastic deformation of deformation energy absorption element absorbs energy.
The impact be subject to when locomotive or collision energy are greater than the energy+F of energy disperser
2× (20 ~ 30mm) × 0.85(performance coeffcient) time, then adopt three grades of anticollision surge protections:
First order anticollision impact protection device is by hitch, couple yoke, form from plate, energy disperser, and power-absorbing is energy disperser.
Second stage anticollision impact protection device is by hitch, couple yoke, form from plate, energy disperser, deformation energy absorption element, and now the thin circular cylinder part generation plastic deformation of deformation energy absorption element absorbs energy.
As shown in Figure 2; third stage anticollision impact protection device is by hitch, couple yoke, form from plate, energy disperser, deformation energy absorption element, striker power-absorbing, and now the thin circular cylinder part of remaining non-deformation energy absorption element and striker power-absorbing plastic deformation occur jointly and absorb energy.The now energy that absorbs of heavy loading locomotive fender guard when being normal endergonic 6 ~ 7 times, and the power-absorbing damaged is all the parts be easily replaced.
Compared with prior art, the invention has the beneficial effects as follows:
1) when locomotive is subject to larger exception impact, when adopting three-level protective, absorb energy large, better can protect the safety of train and driver and conductor.
2) the bolt mounting means of deformation energy absorption element of the present invention, striker power-absorbing and car body, it is convenient to change, and cost is low.
Below in conjunction with drawings and Examples, the present invention is further elaborated.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing heavy loading locomotive energy-dissipating protection device;
Fig. 2 is the structure principle chart of one embodiment of the invention.
In the drawings
1-hitch; 2-is from plate; 3-couple yoke; 4-energy disperser; 5-striker power-absorbing; 6-deformation energy absorption element.
Detailed description of the invention
A kind of heavy loading locomotive fender guard, as shown in Figure 2, comprise the hitch 1 be contained on couple yoke 3, the afterbody of this hitch 1 is fixedly connected with from plate 2; Described hitch 1 is equipped with striker power-absorbing 5, describedly be fixedly connected with from plate 2 energy disperser 4 be contained in couple yoke 3, the afterbody of described energy disperser 4 is fixedly connected with deformation energy absorption element 6, and the maximum compression load F that whole heavy loading locomotive car body can bear is 3000kN; The capacity of energy disperser 4 is 100kJ, range L1 is 73mm, and maximum resistance is 2500kN; The static trigger force F2 of deformation energy absorption element 6 plastic deformation is 3050kN, and maximum distortion distance L2 is 180mm, and minimum dynamic energy absorption amount is 450kJ; The static trigger force F3 of striker power-absorbing 5 plastic deformation is 750kN, and maximum distortion distance is 151mm.
When the impact of train, impact force are not more than 3050kN, energy disperser 4 absorbed by repeatedly crank motion impact, collision energy.
When the impact of train, impact force are greater than 3050kN, first order anticollision surge protection starts, energy disperser 4 absorbs (storing, is not consume) 122kJ, and energy disperser 4 is crushed to death, and becomes firm body; Then anticollision surge protection in the second stage starts, and deformation energy absorption element 6 starts plastic deformation occurs, and when deformation length is 29mm, deformation energy absorption element 6 absorbs about 81kJ, the energy of system coabsorption 203kJ; When train impact, collision be not completely absorbed time; third stage anticollision surge protection starts, and striker power-absorbing 5 and deformation energy absorption element 6 all plastic deformation occur, at the end of final plastic deformation; striker power-absorbing 5 energy-absorbing is 90kJ, and system is energy-absorbing 665kJ altogether.
The content that above-described embodiment is illustrated should be understood to these embodiments only for being illustrated more clearly in the present invention, and be not used in and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims limited range.
Claims (2)
1. a heavy loading locomotive fender guard, comprise the couple yoke (3) be contained in coupler pocket, hitch (1), from plate (2), energy disperser (4), deformation energy absorption element (6) and the striker power-absorbing (5) in coupler pocket outside; It is characterized in that, described hitch (1) is connected by hook pin with couple yoke (3), described striker power-absorbing (5) is fixed on draw beam, described energy disperser (4) is contained in couple yoke (3), be contained between hitch (1) afterbody and energy disperser (4) from plate (2), described deformation energy absorption element (6) is fixed on the afterbody in coupler pocket and contacts with energy disperser (4); The hook of described striker power-absorbing (5) and hitch (1) take between distance L be that the range L1 of energy disperser (4) adds 20mm ~ 30mm;
The extreme length L2 of described deformation energy absorption element (6) plastic deformation is that the length of striker power-absorbing (5) plastic deformation adds 20mm ~ 30mm;
The maximum resistance of described energy disperser (4) is not more than the maximum compression load F that car body can bear; The span of the static trigger force F2 of described deformation energy absorption element (6) plastic deformation is 1.0F< F2<1.1F, the span of the static trigger force F3 of described striker power-absorbing (5) plastic deformation is 500KN ~ 800KN, and F2+F3<1.28F.
2. the method utilizing the heavy loading locomotive fender guard described in claim 1 to protect heavy loading locomotive, is characterized in that:
1) when locomotive normally run, connect hang, braking time, the impact energy of generation is only absorbed by energy disperser (4);
2) when locomotive is subject to the collision impact of improper utilization, and its energy is less than the energy of energy disperser and the static trigger force F of deformation energy absorption element (6) plastic deformation
2during × (20 ~ 30mm) × performance coeffcient 0.85 sum, adopt two-stage anticollision impact protection device protection locomotive:
First order anticollision impact protection device by hitch (1), couple yoke (3), form from plate (2), energy disperser (4), when impact energy is less than the energy of energy disperser, first order anticollision impacting start, power-absorbing is energy disperser (4);
Second stage anticollision impact protection device by hitch (1), couple yoke (3), form from plate (2), energy disperser (4), deformation energy absorption element (6), is greater than the energy of energy disperser when impact energy but is less than the energy of energy disperser and the static trigger force F of deformation energy absorption element (6) plastic deformation
2during × (20 ~ 30mm) × performance coeffcient 0.85 sum, now there is plastic deformation and absorb energy in deformation energy absorption element (6) part;
3) when locomotive is subject to the collision impact of improper utilization, and its energy is greater than the energy of energy disperser and the static trigger force F of deformation energy absorption element (6) plastic deformation
2during × (20 ~ 30mm) × performance coeffcient 0.85 sum, adopt three grades of anticollision impact protection device protection locomotives:
First order anticollision impact protection device is by hitch (1), couple yoke (3), form from plate (2), energy disperser (4), and power-absorbing is energy disperser;
Second stage anticollision impact protection device is by hitch (1), couple yoke (3), form from plate (2), energy disperser (4), deformation energy absorption element (6), and now deformation energy absorption element part generation plastic deformation absorbs energy;
Third stage anticollision impact protection device is by hitch (1), couple yoke (3), form from plate (2), energy disperser (4), deformation energy absorption element (6), striker power-absorbing (5), and now the remaining undeformable part of deformation energy absorption element (6) and striker power-absorbing (5) plastic deformation occur jointly and absorb energy.
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| CN201310202529.7A CN103241262B (en) | 2013-05-28 | 2013-05-28 | A kind of heavy loading locomotive fender guard and guard method |
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| CN201310202529.7A CN103241262B (en) | 2013-05-28 | 2013-05-28 | A kind of heavy loading locomotive fender guard and guard method |
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| CN104908772B (en) * | 2015-06-30 | 2018-01-09 | 南车株洲电力机车有限公司 | A kind of locomotive |
| CN106448763B (en) * | 2016-10-18 | 2017-11-10 | 中国核动力研究设计院 | A kind of fuel rod contact type measurement crash structure and its collision-proof method |
| CN109383553A (en) * | 2017-08-04 | 2019-02-26 | 中车大同电力机车有限公司 | A kind of New Locomotive tail frame |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3797673A (en) * | 1970-11-20 | 1974-03-19 | Cardwell Westinghouse Co | Cushioning arrangement for railroad cars |
| CN1537769A (en) * | 2003-04-16 | 2004-10-20 | 川崎重工业株式会社 | Mounting structure of rubber buffer for connector of stock |
| CA2713792A1 (en) * | 2009-10-01 | 2011-04-01 | Voith Patent Gmbh | Device for damping tractive and compressive forces |
| CN102431570A (en) * | 2011-11-09 | 2012-05-02 | 天津机辆轨道交通装备有限责任公司 | Novel tightlock coupling buffer structure for urban subway |
| CN203268053U (en) * | 2013-05-28 | 2013-11-06 | 南车株洲电力机车有限公司 | Heavy-load locomotive protection device |
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2013
- 2013-05-28 CN CN201310202529.7A patent/CN103241262B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3797673A (en) * | 1970-11-20 | 1974-03-19 | Cardwell Westinghouse Co | Cushioning arrangement for railroad cars |
| CN1537769A (en) * | 2003-04-16 | 2004-10-20 | 川崎重工业株式会社 | Mounting structure of rubber buffer for connector of stock |
| CA2713792A1 (en) * | 2009-10-01 | 2011-04-01 | Voith Patent Gmbh | Device for damping tractive and compressive forces |
| CN102431570A (en) * | 2011-11-09 | 2012-05-02 | 天津机辆轨道交通装备有限责任公司 | Novel tightlock coupling buffer structure for urban subway |
| CN203268053U (en) * | 2013-05-28 | 2013-11-06 | 南车株洲电力机车有限公司 | Heavy-load locomotive protection device |
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