CN104554329A - Buffer device for rail transit vehicle - Google Patents
Buffer device for rail transit vehicle Download PDFInfo
- Publication number
- CN104554329A CN104554329A CN201410824547.3A CN201410824547A CN104554329A CN 104554329 A CN104554329 A CN 104554329A CN 201410824547 A CN201410824547 A CN 201410824547A CN 104554329 A CN104554329 A CN 104554329A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- energy disperser
- gland
- housing
- shock absorber
- 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
- 239000000872 buffer Substances 0.000 title claims abstract description 15
- 210000004907 gland Anatomy 0.000 claims description 32
- 239000006096 absorbing agent Substances 0.000 claims description 24
- 230000035939 shock Effects 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000012536 packaging technology Methods 0.000 description 3
- 230000002040 relaxant effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007853 buffer solution Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000011176 pooling Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G11/00—Buffers
- B61G11/08—Buffers with rubber springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G11/00—Buffers
- B61G11/12—Buffers with fluid springs or shock-absorbers; Combinations thereof
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Vibration Dampers (AREA)
Abstract
The invention discloses a buffer device for a rail transit vehicle. The buffer device is suitable for easing longitudinal impulse between a motor train unit and a metro vehicle, and comprises a buffer, a nut, an annular spring, a sleeve, a rubber ball bearing, an anti-rotating strip, a stop ring, a clamping ring, a joint and a pre-pressing sleeve, wherein the front end of the shell of the buffer is fixedly connected with the joint; the rear part of the shell of the buffer is inserted into the sleeve and is in sliding fit with the sleeve; the rear end of the annular spring is abutted against the stop ring; the rear end of the stop ring is abutted against a step in the sleeve; the pre-pressing sleeve sleeves the shell of the buffer; the nut is in threaded connection with the front end of the sleeve and is abutted against the pre-pressing sleeve; the rear end of the shell of the buffer is also provided with an annular boss; the annular boss is in sliding fit with the inner wall of the sleeve; the front end of the annular boss can be abutted against the rear end of the stop ring; the annular boss is provided with an anti-rotating groove; the anti-rotating strip is arranged in the sleeve; the anti-rotating groove is in axial sliding fit with the anti-rotating strip. The buffer device has the advantages of good assembly manufacturability, small size, light weight and compact structure.
Description
Technical field
The present invention relates to a kind of rail traffic vehicles shock absorber, is for relaxing longitudinal impulse between motor train unit and railcar, and improving the shock absorber of travelling comfort, is a part for hitch buffer system.
Background technology
In order to improve the travelling comfort of motor train unit, railcar, reduce the longitudinal impact force of hitch between each compartment, the car end of current EMU, railcar connects generally employing High Performance shock absorber.Conventional High Performance shock absorber mainly contains rubber draft gear, daub buffer, Liquid and gas damper elastomeric bumpers etc., and wherein Liquid and gas damper is large with its capacity, volume is little, lightweight feature is used widely in EMU, railcar.
Rail traffic vehicles shock absorber is mainly used in relaxing the tension and compression impact load between EMU and railcar, improves travelling comfort.Existing shock absorber is primarily of compositions such as draw bar, energy disperser, nut, annual spring, sleeve and rubber sphere bearings.This shock absorber is compression-independent shock absorber, and tension impact load is relaxed by annual spring, and compressive impact load is relaxed by energy disperser.Because this shock absorber is necessary for the draw bar of annual spring and anti-rotation bar design specialized, for installing annual spring and anti-rotation groove on draw bar coordinates with anti-rotation bar the rotation preventing draw bar and sleeve, so volume, quality are all larger; Simultaneously, because annual spring needs the precompressed compression applying about 70kN when assembling, in this prior art configuration, all precompressed compressions progressively apply in the process screwed by nut, the result brought thus is that nut is very difficult, screw back nut and annual spring surface has scuffing, therefore there is the shortcoming of the comparatively large and packaging technology difference of volume, quality in prior art simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of packaging technology good, reduce volume and weight and the rail traffic vehicles shock absorber of compact conformation.
In order to achieve the above object, technical scheme of the present invention is: a kind of rail traffic vehicles shock absorber, comprise energy disperser, nut, annual spring, sleeve, rubber sphere bearing, anti-rotation bar and baffle ring, described rubber sphere bearing is installed on the afterbody of sleeve, described energy disperser comprises housing and has the piston rod of Telescopic, the outer end of piston rod and the inner wall of sleeve offset, also comprise snap ring, joint and pre-gland, described snap ring is contained in the front portion of joint, the housing forward end of described energy disperser is fixedly connected with joint, the housing rear portion of energy disperser to be inserted in sleeve and with sleeve bearing fit, described annual spring and baffle ring are arranged between the housing of energy disperser and sleeve, rear end and the baffle ring of annual spring offset, step in the rear end of baffle ring and sleeve offsets, described pre-gland is sleeved on the housing of energy disperser, pre-gland is against the front end of annual spring, nut thread is connected to the front end of sleeve, and offset with pre-gland, the rear end of the housing of described energy disperser is also provided with annular boss, the inwall bearing fit of annular boss and sleeve, the front end of annular boss can offset with the rear end of baffle ring, annular boss is provided with anti-rotation groove, described anti-rotation bar is arranged in sleeve, anti-rotation groove and the axial sliding fit of anti-rotation bar.
Described energy disperser is Liquid and gas damper.
Or described energy disperser is daub buffer.
Described pre-gland comprises cylindrical shape front portion and convex circular rear, and the inner ring of nut is enclosed within the cylindrical shape front portion of pre-gland, and the rear end of nut and the convex circular rear of pre-gland offset.
Anti-rotation groove on described energy disperser is arranged on the bottom of the annular boss of energy disperser, and described anti-rotation bar is arranged on the bottom in sleeve, and described anti-rotation bar is fixed by screws in the bottom in sleeve.
Described pre-gland is a circle cover.Or described pre-gland is combined into a circle cover by two semi-rings.
Annular boss on the housing of described energy disperser is with shell made in one piece or be threaded or weld.
The housing forward end of described energy disperser is connected with joint screw thread or welds.
Beneficial effect of the present invention is: owing to have employed pre-gland, makes the pre-gland of nut locking, and avoid the screw-in difficulty situation of nut in original technology, also can not cause the scuffing of nut and annual spring, packaging technology is good; Simultaneously, owing to there is annular boss on the housing of energy disperser, and add anti-rotation groove at annular boss, coordinate with the anti-rotation bar installed in sleeve, relatively rotating between energy disperser and sleeve can be prevented, no longer need the draw bar in original technology, make the reduction of shock absorber volume, weight saving, compact conformation.Because the front end of annular boss can offset with the rear end of baffle ring, annular boss also plays spacing effect, making energy disperser under the prerequisite not having draw bar, can not be lost pooling feature by all pulling out.
Accompanying drawing explanation
The present invention is further detailed explanation for the embodiment provided below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of rail traffic vehicles shock absorber of the present invention;
Fig. 2 is the block diagram of Fig. 1;
Fig. 3 is the structural representation of the energy disperser in Fig. 1;
Fig. 4 is the compressive state schematic diagram of Fig. 1;
Fig. 5 is the extended state schematic diagram of Fig. 1;
Fig. 6 is the I portion enlarged diagram of Fig. 1;
Fig. 7 is the nut in Fig. 1, pre-gland and the schematic diagram of annual spring before being assembled into sleeve;
Fig. 8 is the perspective view of another kind of pre-gland.
Detailed description of the invention
As shown in figs. 1-7, rail traffic vehicles shock absorber of the present invention, comprise energy disperser 3, nut 4, annual spring 6, sleeve 7, rubber sphere bearing 8, anti-rotation bar 9 and baffle ring 10, described rubber sphere bearing 8 is installed on the afterbody of sleeve 7, described energy disperser 3 comprises housing 3-1 and has the piston rod 3-3 of Telescopic, the outer end of piston rod 3-3 and the inner wall of sleeve 7 offset, also comprise snap ring 1, joint 2 and pre-gland 5, described snap ring 1 is contained in the front portion of joint 2, the housing 3-1 front end of described energy disperser 3 is fixedly connected with joint 2, the housing 3-1 rear portion of energy disperser 3 to be inserted in sleeve 7 and with sleeve 7 bearing fit, described annual spring 6 and baffle ring 10 are arranged between the housing 3-1 of energy disperser 3 and sleeve 7, rear end and the baffle ring 10 of annual spring 6 offset, step 7-1 in the rear end of baffle ring 10 and sleeve 7 offsets, described pre-gland 5 is sleeved on the housing 3-1 of energy disperser 3, pre-gland 5 is against the front end of annual spring 6, nut 4 is threaded in the front end of sleeve 7, and offset with pre-gland 5, the rear end of the housing 3-1 of described energy disperser 3 is also provided with annular boss 3-2, the inwall bearing fit of annular boss 3-2 and sleeve 7, the front end of annular boss 3-2 can offset with the rear end of baffle ring 10, annular boss 3-2 is provided with anti-rotation groove 3-2-1, described anti-rotation bar 9 is arranged in sleeve 7, anti-rotation groove 3-2-1 and anti-rotation bar 9 axial sliding fit.The outer circumference surface of nut 4 is provided with outside thread, and the inner peripheral surface of the front end of sleeve 7 is provided with negative thread.
Described energy disperser 3 is Liquid and gas dampers.The inner structure of described Liquid and gas damper can adopt the structure disclosed in Chinese patent literature CN2321975Y, also can adopt the structure disclosed in Chinese patent literature CN200957821Y.
Energy disperser 3 in the present invention also can adopt the daub buffer of prior art.
As shown in Figure 6,7, described pre-gland 5 comprises the anterior 5-1 and convex circular rear 5-2 of cylindrical shape, and the inner ring of nut 4 is enclosed within the anterior 5-1 of cylindrical shape of pre-gland 5, and the rear end of nut 4 and the convex circular rear 5-2 of pre-gland 5 offset.
As shown in Fig. 1,3,4,5, the anti-rotation groove 3-2-1 on described energy disperser 3 is arranged on the bottom of the annular boss 3-2 of energy disperser 3, and described anti-rotation bar 9 is arranged on the bottom in sleeve 7, and described anti-rotation bar 9 is fixed on the bottom in sleeve 7 by screw 11.
As shown in Figure 7, described pre-gland 5 is a circle cover.As shown in Figure 8, or described pre-gland 5 by two semi-rings be combined into one circle cover.
As shown in Figure 1,3, the annular boss 3-2 on the housing 3-1 of described energy disperser 3 and housing 3-1 make one or are threaded or weld.The housing 3-1 front end of described energy disperser 3 is threaded with joint 2 or welds.
As shown in Figure 7, when the present invention assembles, after annual spring 6 loads sleeve 7, first pre-gland 5 loaded and apply certain load (about 70kN), then nut 4 is screwed in sleeve, then unloading, namely complete assembling of the present invention.
As shown in Figure 4, when the present invention bears clamp load, energy disperser 3 by compression, plays buffer action;
As shown in Figure 5, when the present invention is subject to tensile load, the front end of annular boss 3-2 can offset with the rear end of baffle ring 10; Annual spring 6 by compression, plays buffer action.
Claims (9)
1. a rail traffic vehicles shock absorber, comprise energy disperser (3), nut (4), annual spring (6), sleeve (7), rubber sphere bearing (8), anti-rotation bar (9) and baffle ring (10), described rubber sphere bearing (8) is installed on the afterbody of sleeve (7), described energy disperser (3) comprises housing (3-1) and has the piston rod (3-3) of Telescopic, the outer end of piston rod (3-3) and the inner wall of sleeve (7) offset, and it is characterized in that:
A, also comprise snap ring (1), joint (2) and pre-gland (5),
B, described snap ring (1) are contained in the front portion of joint (2),
Housing (3-1) front end of c, described energy disperser (3) is fixedly connected with joint (2), housing (3-1) rear portion of energy disperser (3) to be inserted in sleeve (7) and with sleeve (7) bearing fit,
D, described annual spring (6) and baffle ring (10) are arranged between the housing (3-1) of energy disperser (3) and sleeve (7), rear end and the baffle ring (10) of annual spring (6) offset, step (7-1) in the rear end of baffle ring (10) and sleeve (7) offsets
E, described pre-gland (5) are sleeved on the housing (3-1) of energy disperser (3), and pre-gland (5) is against the front end of annual spring (6), and nut (4) is threaded in the front end of sleeve (7), and offset with pre-gland (5),
The rear end of the housing (3-1) of f, described energy disperser (3) is also provided with annular boss (3-2), the inwall bearing fit of annular boss (3-2) and sleeve (7), the front end of annular boss (3-2) can offset with the rear end of baffle ring (10), annular boss (3-2) is provided with anti-rotation groove (3-2-1), described anti-rotation bar (9) is arranged in sleeve (7), anti-rotation groove (3-2-1) and anti-rotation bar (9) axial sliding fit.
2. rail traffic vehicles shock absorber according to claim 1, is characterized in that: described energy disperser (3) is Liquid and gas damper.
3. rail traffic vehicles shock absorber according to claim 1, is characterized in that: described energy disperser (3) is daub buffer.
4. rail traffic vehicles shock absorber according to claim 1, it is characterized in that: described pre-gland (5) comprises cylindrical shape front portion (5-1) and convex circular rear (5-2), the inner ring of nut (4) is enclosed within the cylindrical shape front portion (5-1) of pre-gland (5), and the rear end of nut (4) and the convex circular rear (5-2) of pre-gland (5) offset.
5. rail traffic vehicles shock absorber according to claim 1, it is characterized in that: the anti-rotation groove (3-2-1) on described energy disperser (3) is arranged on the bottom of the annular boss (3-2) of energy disperser (3), described anti-rotation bar (9) is arranged on the bottom in sleeve (7), and described anti-rotation bar (9) is fixed on the bottom in sleeve (7) by screw (11).
6. rail traffic vehicles shock absorber according to claim 1, is characterized in that: described pre-gland (5) is a circle cover.
7. rail traffic vehicles shock absorber according to claim 1, is characterized in that: described pre-gland (5) is combined into a circle cover by two semi-rings.
8. rail traffic vehicles shock absorber according to claim 1, is characterized in that: the annular boss (3-2) on the housing (3-1) of described energy disperser (3) and housing (3-1) are made one or be threaded or weld.
9. rail traffic vehicles shock absorber according to claim 1, is characterized in that: housing (3-1) front end of described energy disperser (3) is threaded with joint (2) or welds.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410824547.3A CN104554329B (en) | 2014-12-26 | 2014-12-26 | Rail traffic vehicles buffer unit |
| CN201590001221.9U CN207842949U (en) | 2014-12-26 | 2015-12-28 | Buffer, rail vehicle buffer unit and its buffer system |
| CN201590001217.2U CN207579876U (en) | 2014-12-26 | 2015-12-28 | Rail vehicle buffer unit and buffer system |
| PCT/CN2015/099146 WO2016101925A1 (en) | 2014-12-26 | 2015-12-28 | Buffer, railway vehicle buffer apparatus, and buffer system thereof |
| PCT/CN2015/099141 WO2016101924A1 (en) | 2014-12-26 | 2015-12-28 | Railway vehicle buffer apparatus and assembling method and buffer system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410824547.3A CN104554329B (en) | 2014-12-26 | 2014-12-26 | Rail traffic vehicles buffer unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104554329A true CN104554329A (en) | 2015-04-29 |
| CN104554329B CN104554329B (en) | 2017-07-21 |
Family
ID=53071662
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410824547.3A Active CN104554329B (en) | 2014-12-26 | 2014-12-26 | Rail traffic vehicles buffer unit |
| CN201590001221.9U Active CN207842949U (en) | 2014-12-26 | 2015-12-28 | Buffer, rail vehicle buffer unit and its buffer system |
| CN201590001217.2U Active CN207579876U (en) | 2014-12-26 | 2015-12-28 | Rail vehicle buffer unit and buffer system |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201590001221.9U Active CN207842949U (en) | 2014-12-26 | 2015-12-28 | Buffer, rail vehicle buffer unit and its buffer system |
| CN201590001217.2U Active CN207579876U (en) | 2014-12-26 | 2015-12-28 | Rail vehicle buffer unit and buffer system |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN104554329B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105270432A (en) * | 2015-11-24 | 2016-01-27 | 天津机辆轨道交通装备有限责任公司 | Large power locomotive buffer |
| WO2016101925A1 (en) * | 2014-12-26 | 2016-06-30 | 中车戚墅堰机车车辆工艺研究所有限公司 | Buffer, railway vehicle buffer apparatus, and buffer system thereof |
| WO2017128496A1 (en) * | 2016-01-26 | 2017-08-03 | 中国科学院力学研究所 | Thin-walled energy-absorbing cylinder and buckling mode control method thereof |
| CN107117184A (en) * | 2017-06-23 | 2017-09-01 | 中车资阳机车有限公司 | A kind of shipping motor-car even worries leading-in device |
| CN107117185A (en) * | 2017-06-23 | 2017-09-01 | 中车资阳机车有限公司 | A kind of type hand even hangs buffer structure |
| CN107139952A (en) * | 2017-06-23 | 2017-09-08 | 中车资阳机车有限公司 | A kind of arrow gauge hopper wagon |
| CN107685746A (en) * | 2017-09-12 | 2018-02-13 | 河海大学常州校区 | A kind of vehicle bumper connector |
| CN109849961A (en) * | 2017-11-30 | 2019-06-07 | 比亚迪股份有限公司 | Hitch and coupler and draft gear |
| CN110261018A (en) * | 2019-04-30 | 2019-09-20 | 株洲壹星科技股份有限公司 | Floating type vehicle door pressure detector and rail vehicle door pressure detection method |
| CN112224420A (en) * | 2020-10-14 | 2021-01-15 | 航宇救生装备有限公司 | Crash-resistant seat capable of changing load and absorbing energy |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111591145A (en) * | 2020-06-03 | 2020-08-28 | 南京铁道职业技术学院 | Traction motor driving part for subway operation |
| CN113294404B (en) * | 2021-04-20 | 2022-11-11 | 上海机电工程研究所 | Momentum and energy absorption device shared by rubber and daub |
| CN113335335B (en) * | 2021-07-12 | 2023-01-24 | 中车制动系统有限公司 | Railway vehicle buffer device and coupler buffer system |
| CN113911161B (en) * | 2021-09-18 | 2022-09-27 | 株洲时代新材料科技股份有限公司 | Vehicle-end traction connecting device for rescue |
| CN113968257B (en) * | 2021-12-01 | 2023-04-07 | 中车制动系统有限公司 | Vehicle end buffering energy-absorbing device |
| CN117470639B (en) * | 2023-12-22 | 2024-04-09 | 深圳大学 | Energy absorption buffer device and method applied to dynamic true triaxial electromagnetic Hopkinson bar |
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| DE2745164A1 (en) * | 1977-09-13 | 1979-03-22 | Alusuisse | Railway wagon spring loaded telescopic hydraulic buffer - has variable opening cross partition for hydraulic fluid in high pressure chamber |
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2014
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-
2015
- 2015-12-28 CN CN201590001221.9U patent/CN207842949U/en active Active
- 2015-12-28 CN CN201590001217.2U patent/CN207579876U/en active Active
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016101925A1 (en) * | 2014-12-26 | 2016-06-30 | 中车戚墅堰机车车辆工艺研究所有限公司 | Buffer, railway vehicle buffer apparatus, and buffer system thereof |
| WO2016101924A1 (en) * | 2014-12-26 | 2016-06-30 | 中车戚墅堰机车车辆工艺研究所有限公司 | Railway vehicle buffer apparatus and assembling method and buffer system thereof |
| CN105270432A (en) * | 2015-11-24 | 2016-01-27 | 天津机辆轨道交通装备有限责任公司 | Large power locomotive buffer |
| WO2017128496A1 (en) * | 2016-01-26 | 2017-08-03 | 中国科学院力学研究所 | Thin-walled energy-absorbing cylinder and buckling mode control method thereof |
| CN107139952A (en) * | 2017-06-23 | 2017-09-08 | 中车资阳机车有限公司 | A kind of arrow gauge hopper wagon |
| CN107117185A (en) * | 2017-06-23 | 2017-09-01 | 中车资阳机车有限公司 | A kind of type hand even hangs buffer structure |
| CN107117184A (en) * | 2017-06-23 | 2017-09-01 | 中车资阳机车有限公司 | A kind of shipping motor-car even worries leading-in device |
| CN107685746A (en) * | 2017-09-12 | 2018-02-13 | 河海大学常州校区 | A kind of vehicle bumper connector |
| CN109849961A (en) * | 2017-11-30 | 2019-06-07 | 比亚迪股份有限公司 | Hitch and coupler and draft gear |
| CN109849961B (en) * | 2017-11-30 | 2020-07-10 | 比亚迪股份有限公司 | Coupler and coupler buffering device |
| CN110261018A (en) * | 2019-04-30 | 2019-09-20 | 株洲壹星科技股份有限公司 | Floating type vehicle door pressure detector and rail vehicle door pressure detection method |
| CN112224420A (en) * | 2020-10-14 | 2021-01-15 | 航宇救生装备有限公司 | Crash-resistant seat capable of changing load and absorbing energy |
| CN112224420B (en) * | 2020-10-14 | 2023-12-05 | 航宇救生装备有限公司 | Crash-resistant seat capable of changing load and absorbing energy |
Also Published As
| Publication number | Publication date |
|---|---|
| CN207842949U (en) | 2018-09-11 |
| CN104554329B (en) | 2017-07-21 |
| CN207579876U (en) | 2018-07-06 |
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