CN103241261A - Compact type bumper with pulling and pressing switching structure - Google Patents
Compact type bumper with pulling and pressing switching structure Download PDFInfo
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- CN103241261A CN103241261A CN2013101583826A CN201310158382A CN103241261A CN 103241261 A CN103241261 A CN 103241261A CN 2013101583826 A CN2013101583826 A CN 2013101583826A CN 201310158382 A CN201310158382 A CN 201310158382A CN 103241261 A CN103241261 A CN 103241261A
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- tension
- energy disperser
- compression
- inner core
- over panel
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Abstract
The invention relates to a compact type bumper with a pulling and pressing switching structure. The compact type bumper comprises a bumper shell, an elastic unit, a pulling and pressing switching plate and an inner cylinder which is sleeved outside the elastic unit. One end of the elastic unit contacts with the pulling and pressing switching plate, one end of the inner cylinder is sleeved in the bumper shell and the other end of the same extends out of the bumper shell and is connected with an end cap on the end portion of the bumper shell, a pulling and pressing switching plate mounting hole is reserved on the inner cylinder in the inner side of the end cap, and the pulling and pressing switching plate is mounted in the pulling and pressing switching plate mounting hole. A draw-in rod and the inner cylinder of the bumper are combined to be integrally used as the inner cylinder and no drawing rod is needed. During pulling and pressing switching, only the inner cylinder is in relative movement with the bumper shell, the longitudinal contact surface is long, the relative movement between the shell and the inner cylinder is not easy to be clamped to stop, and service life of the unit is prolonged. Clamping loop connection is changed into pin connection, and the clamping loop connection is still usable and can be allowed to slide inside the bumper shell.
Description
Technical field
The present invention relates to the used for rail vehicle shock absorber, specifically, relate to a kind of close-coupled energy disperser.
Background technology
Coupler buffering device is one of railway vehicle basic element of character, play quick connection and decompose railway vehicle, transmit tractive force of train, improve vehicle safety, improve vehicle riding comfort can effect.
Energy disperser is that coupler buffering device improves the longitudinal impulse performance, improves the vitals of vehicle safety traveling comfort.Energy disperser mainly participates in the vertical energy absorbing in the guideway vehicle normal course of operation as energy absorbing device important in the coupler buffering device.Mainly be to rely on the inner elastic element of compression to realize the function of energy absorbing in the existing energy disperser, wherein the tension and compression transfer device is the important component part that realizes the energy disperser energy-absorbing in the energy disperser.
At present, common energy disperser is mainly formed (as shown in Figure 1) by pull bar 9, draw-in bar 8, energy disperser housing 1, tension and compression change-over panel 3, inner core 2, end cap 5, inner end cap 6, elastic element 4 etc.Wherein, draw-in bar and inner core are part independently mutually, and pull bar and draw-in bar are by being threaded, and pull bar and hitch miscellaneous part link together by snap ring.Energy disperser tension and compression switching process is finished by mutual motion compresses elastic element between draw-in bar, inner core, the tension and compression change-over panel, as shown in Figure 2, during the energy disperser compression, draw-in bar moves backward together with the relative inner core of tension and compression change-over panel and energy disperser housing, compression elastic element is realized the energy disperser compression process; As shown in Figure 3, when energy disperser stretched, draw-in bar travelled forward together with the relative tension and compression change-over panel of inner core and energy disperser housing, and compression elastic element is realized the energy disperser drawing process.But the tension and compression switching process of this mode, the motion area of contact is less during owing to draw-in bar, inner core, the relative motion of tension and compression change-over panel, causes parts easily to wear away; In addition, owing in the compression process, need to reserve enough compression strokes between pull bar and the energy disperser housing, cause the energy disperser own vol longer, therefore the hitch entire length is had bigger restriction.
Summary of the invention
Above-mentioned deficiencies such as the volume that the present invention is directed to existing energy disperser existence is big, the easy abrasion of parts, a kind of close-coupled energy disperser with tension and compression transformational structure is provided, this energy disperser adopts the tension and compression conversion regime, make energy disperser in the tension and compression switching process, reduce the abrasion between the parts, the service life of having improved parts, in addition, adopt the pin ways of connecting, make that the buffer structure design is compacter, shortened the length of energy disperser own vol, reduced the volume of energy disperser.
Technical scheme of the present invention is: a kind of close-coupled energy disperser with tension and compression transformational structure, this energy disperser comprises energy disperser housing, elastic element, tension and compression change-over panel and is sleeved on the inner core of elastic element outside that one end of elastic element contacts with the tension and compression change-over panel; One end of inner core is sleeved in the energy disperser housing, other end projection buffer housing, and be connected by end cap with the energy disperser shell end; The inner core of end cap inboard is provided with tension and compression change-over panel mounting hole, and the tension and compression change-over panel is installed in the tension and compression change-over panel mounting hole.
Draft gear travel when preferably, the length of tension and compression change-over panel mounting hole stretches more than or equal to energy disperser and the thickness sum of tension and compression change-over panel.
Preferably, an end of inner core projection buffer housing is provided with pin-and-hole, and connecting pin is installed in the pin-and-hole.
Preferably, inner core is sleeved on that the end of an end is connected with elastic element by inner end cap in the energy disperser housing.
Preferably, the inwall of inner core end is provided with the step of restriction elastic element.
Preferably, inner core is integral structure.
Preferably, inner core is split-type structural, comprises the connecting portion that is sleeved on the energy disperser enclosure interior and the extension of projection buffer housing, and connecting portion and extension are by being threaded.
Preferably, tension and compression change-over panel mounting hole is arranged on the connecting portion, and extension is connected with hitch by snap ring.
Preferably, an end of energy disperser housing is connected with shears lid, and closes by shearing cap seal.
Preferably, an end of energy disperser housing is connected with draw ring, and seals by draw ring.
The invention has the beneficial effects as follows: the present invention will have the draw-in bar of energy disperser and inner core now and become one and use as inner core, and cancelled pull bar, in the tension and compression switching process, be inner core and energy disperser housing generation relative motion, vertically contact face length, housing and inner core relative motion are not easy clamping stagnation, have improved the service life of parts; The present invention changes original snap ring connection into pin and connects, simultaneously can compatible snap ring connection mode, make the connection structure volume compact of energy disperser and other equipment, can allow this connection structure to slip into the energy disperser enclosure interior, having created by the regression rearward of energy disperser housing for the hitch headend equipment may.
Description of drawings
Accompanying drawing 1 is the structural representation of common energy disperser.
Accompanying drawing 2 is the compressive state scheme drawing of common energy disperser.
Accompanying drawing 3 is the extended state scheme drawing of common energy disperser.
Accompanying drawing 4 is the structural representation of the specific embodiment of the invention one.
Accompanying drawing 5 is the compressive state scheme drawing of the specific embodiment of the invention one.
Accompanying drawing 6 is the extended state scheme drawing of the specific embodiment of the invention one.
Accompanying drawing 7 is the structural representation of the specific embodiment of the invention two.
Accompanying drawing 8 is the compressive state scheme drawing of the specific embodiment of the invention two.
Accompanying drawing 9 is the extended state scheme drawing of the specific embodiment of the invention two.
The specific embodiment
The present invention will be further described below in conjunction with accompanying drawing.
The specific embodiment one: as shown in Figs. 4-6, a kind of close-coupled energy disperser with tension and compression transformational structure, this energy disperser comprises energy disperser housing 1, elastic element 4, tension and compression change-over panel 3 and is sleeved on the inner core 2 of elastic element 4 outsides that one end of elastic element 4 contacts with tension and compression change-over panel 3; One end of inner core 2 is sleeved in the energy disperser housing 1, other end projection buffer housing 1, and be connected by end cap 5 with energy disperser housing 1 end; The inner core 2 of end cap 5 inboards is provided with tension and compression change-over panel mounting hole, and tension and compression change-over panel 3 is installed in the tension and compression change-over panel mounting hole.
Draft gear travel when the length of above-mentioned tension and compression change-over panel mounting hole stretches more than or equal to energy disperser and the thickness sum of tension and compression change-over panel, the needs of draft gear travel when stretching to satisfy in tension and compression conversion process energy disperser.
One end of inner core 2 projection buffer housings is provided with pin-and-hole, and connecting pin is installed in the pin-and-hole, and energy disperser is realized and being connected of hitch by pin-and-hole and connecting pin.
The end that inner core 2 is sleeved on an end in the energy disperser housing 1 is connected with elastic element 4 by inner end cap 6.
Above-mentioned inner core 2 is integral structure, has cancelled the pull bar in the existing energy disperser, in the tension and compression process, is inner core 2 and with energy disperser housing 1 relative motion takes place.
One end of energy disperser housing 1 is connected with to shear and covers 7, and covers 7 sealings by shearing.
Principle of work: in the tension and compression switching process, mutual motion compresses elastic element is finished the tension and compression conversion between inner core, tension and compression change-over panel and the energy disperser housing.Be hitch by compression the time, inner core moves with respect to the energy disperser housing backward together with the tension and compression change-over panel, and compression elastic element is realized the energy disperser compression process; When hitch was stretched, inner core travelled forward for tension and compression change-over panel and energy disperser housing, and compression elastic element is realized the energy disperser drawing process.
The specific embodiment two: as shown in Figs. 7-9, a kind of close-coupled energy disperser with tension and compression transformational structure, this energy disperser comprises energy disperser housing 1, elastic element 4, tension and compression change-over panel 3 and is sleeved on the inner core 2 of elastic element 4 outsides that one end of elastic element 4 contacts with tension and compression change-over panel 3; One end of inner core 2 is sleeved in the energy disperser housing 1, other end projection buffer housing 1, and be connected by end cap 5 with energy disperser housing 1 end; The inner core 2 of end cap 5 inboards is provided with tension and compression change-over panel mounting hole, and tension and compression change-over panel 3 is installed in the tension and compression change-over panel mounting hole.
Draft gear travel when the length of above-mentioned tension and compression change-over panel mounting hole stretches more than or equal to energy disperser and the thickness sum of tension and compression change-over panel, the needs of draft gear travel when stretching to satisfy in tension and compression conversion process energy disperser.
The inwall of inner core 2 ends is provided with the step of restriction elastic element 4, is used for limiting elastic element 4 when energy disperser stretches.
Above-mentioned inner core 2 is split-type structural, comprise the connecting portion that is sleeved on energy disperser housing 1 inside and the extension of projection buffer housing 1, connecting portion and extension are by being threaded, connecting portion is in the inboard of end cap 5, tension and compression change-over panel mounting hole is arranged on the connecting portion, the extending area is in the outside of end cap 5, and extension is connected with hitch by snap ring.
One end of energy disperser housing 1 is connected with draw ring, and seals by draw ring.
Principle of work: in the tension and compression switching process, mutual motion compresses elastic element is finished the tension and compression conversion between inner core, tension and compression change-over panel and the energy disperser housing.Be hitch by compression the time, inner core moves with respect to the energy disperser housing backward together with the tension and compression change-over panel, and compression elastic element is realized the energy disperser compression process; When hitch was stretched, inner core travelled forward for tension and compression change-over panel and energy disperser housing, and compression elastic element is realized the energy disperser drawing process.
Claims (10)
1. close-coupled energy disperser with tension and compression transformational structure, it is characterized in that: this energy disperser comprises energy disperser housing, elastic element, tension and compression change-over panel and is sleeved on the inner core of elastic element outside that one end of elastic element contacts with the tension and compression change-over panel; One end of inner core is sleeved in the energy disperser housing, other end projection buffer housing, and be connected by end cap with the energy disperser shell end; The inner core of end cap inboard is provided with tension and compression change-over panel mounting hole, and the tension and compression change-over panel is installed in the tension and compression change-over panel mounting hole.
2. the close-coupled energy disperser with tension and compression transformational structure according to claim 1 is characterized in that: the draft gear travel the when length of tension and compression change-over panel mounting hole stretches more than or equal to energy disperser and the thickness sum of tension and compression change-over panel.
3. the close-coupled energy disperser with tension and compression transformational structure according to claim 1, it is characterized in that: an end of inner core projection buffer housing is provided with pin-and-hole, and connecting pin is installed in the pin-and-hole.
4. the close-coupled energy disperser with tension and compression transformational structure according to claim 1 is characterized in that: the end that inner core is sleeved on an end in the energy disperser housing is connected with elastic element by inner end cap.
5. the close-coupled energy disperser with tension and compression transformational structure according to claim 1 is characterized in that: the inwall of inner core end is provided with the step of restriction elastic element.
6. the close-coupled energy disperser with tension and compression transformational structure according to claim 1, it is characterized in that: inner core is integral structure.
7. the close-coupled energy disperser with tension and compression transformational structure according to claim 1, it is characterized in that: inner core is split-type structural, comprise the connecting portion that is sleeved on the energy disperser enclosure interior and the extension of projection buffer housing, connecting portion and extension are by being threaded.
8. the close-coupled energy disperser with tension and compression transformational structure according to claim 7, it is characterized in that: tension and compression change-over panel mounting hole is arranged on the connecting portion, and extension is connected with hitch by snap ring.
9. the close-coupled energy disperser with tension and compression transformational structure according to claim 1 is characterized in that: an end of energy disperser housing is connected with shears lid, and closes by shearing cap seal.
10. the close-coupled energy disperser with tension and compression transformational structure according to claim 1, it is characterized in that: an end of energy disperser housing is connected with draw ring, and seals by draw ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310158382.6A CN103241261B (en) | 2013-05-02 | 2013-05-02 | Compact type bumper with pulling and pressing switching structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310158382.6A CN103241261B (en) | 2013-05-02 | 2013-05-02 | Compact type bumper with pulling and pressing switching structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103241261A true CN103241261A (en) | 2013-08-14 |
| CN103241261B CN103241261B (en) | 2015-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310158382.6A Active CN103241261B (en) | 2013-05-02 | 2013-05-02 | Compact type bumper with pulling and pressing switching structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103241261B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106240596A (en) * | 2015-06-12 | 2016-12-21 | 沃依特专利有限责任公司 | Pulling force/impact attenuation device |
| CN110641506A (en) * | 2018-06-27 | 2020-01-03 | 比亚迪股份有限公司 | Coupler buffer device and coupler with same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3822021A (en) * | 1972-11-20 | 1974-07-02 | Keystone Ind Inc | Combined stop and support arrangement for the rear end of the return spring assembly of a railway vehicle cushioning unit |
| US20050224441A1 (en) * | 2004-04-08 | 2005-10-13 | Howard Sommerfeld | Long travel high capacity friction draft gear assembly |
| CN201317371Y (en) * | 2008-11-27 | 2009-09-30 | 天津机辆轨道交通装备有限责任公司 | Screw coupler |
| 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 |
| CN203283245U (en) * | 2013-05-02 | 2013-11-13 | 青岛四方车辆研究所有限公司 | Compact type buffer with pulling-and-pressing conversion structure |
-
2013
- 2013-05-02 CN CN201310158382.6A patent/CN103241261B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3822021A (en) * | 1972-11-20 | 1974-07-02 | Keystone Ind Inc | Combined stop and support arrangement for the rear end of the return spring assembly of a railway vehicle cushioning unit |
| US20050224441A1 (en) * | 2004-04-08 | 2005-10-13 | Howard Sommerfeld | Long travel high capacity friction draft gear assembly |
| CN201317371Y (en) * | 2008-11-27 | 2009-09-30 | 天津机辆轨道交通装备有限责任公司 | Screw coupler |
| 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 |
| CN203283245U (en) * | 2013-05-02 | 2013-11-13 | 青岛四方车辆研究所有限公司 | Compact type buffer with pulling-and-pressing conversion structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106240596A (en) * | 2015-06-12 | 2016-12-21 | 沃依特专利有限责任公司 | Pulling force/impact attenuation device |
| CN106240596B (en) * | 2015-06-12 | 2019-11-26 | 沃依特专利有限责任公司 | Pulling force/impact attenuation device |
| CN110641506A (en) * | 2018-06-27 | 2020-01-03 | 比亚迪股份有限公司 | Coupler buffer device and coupler with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103241261B (en) | 2015-06-10 |
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| CP01 | Change in the name or title of a patent holder |
Address after: 266031 Shandong province Qingdao City, Ruichang Road No. 231 Patentee after: CRRC QINGDAO SIFANG VEHICLE RESEARCH INSTITUTE CO., LTD. Address before: 266031 Shandong province Qingdao City, Ruichang Road No. 231 Patentee before: Qingdao Sifang Rolling Stock Research Institute Co., Ltd. |