高速铁路道岔尖轨不足位移控制方法

王璞; 曾瑞东; 王树国

doi:10.19818/j.cnki.1671-1637.2022.02.006

高速铁路道岔尖轨不足位移控制方法

doi: 10.19818/j.cnki.1671-1637.2022.02.006

王璞^1,,
曾瑞东^{1, 2, ,},
王树国¹

1.
中国铁道科学研究院集团有限公司铁道建筑研究所，北京 100081
2.
杭州铁路设计院有限责任公司，浙江杭州 310000

基金项目:

国家自然科学基金项目 51878661

国家自然科学基金项目 51808557

详细信息

作者简介:
王璞(1988-)，男，河北沧州人，中国铁道科学研究院集团有限公司副研究员，工学博士，从事铁路道岔理论与试验研究

曾瑞东：ZENG Rui-dong(1994-), male, engineer, zrd2016@yeah.net

通讯作者:
曾瑞东(1994-)，男，浙江温州人，杭州铁路设计院有限责任公司工程师

中图分类号: U213.6
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出版历程
- 收稿日期: 2021-10-20
- 刊出日期: 2022-04-25

Control method for insufficient displacement of switch rail in high-speed railway turnout

WANG Pu^1
,,
ZENG Rui-dong^{1, 2
, ,},
WANG Shu-guo¹

1.
Railway Engineering Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing 100081, China
2.
Hangzhou Railway Design Institute Corporation Limited, Hangzhou 310000, Zhejiang, China

Funds:

National Natural Science Foundation of China 51878661

National Natural Science Foundation of China 51808557

More Information

Author Bio:
WANG Pu(1988-), male, associate professor, PhD, wpwp2012@yeah.net

摘要

摘要: 为模拟运营条件下高速铁路道岔转辙器的转换过程，根据高速铁路道岔转辙器的转换特点，在道岔生产车间内建立了客专线18号道岔转辙器转换原型试验平台，采用轴销式称重传感器测量转辙器扳动力，以直、曲尖轨支距实际值与理论值之差为尖轨不足位移；通过转辙器转换试验探索了尖轨预弯、尖轨可动段长度、尖轨固定端扣件支距、滑床板摩擦因数、辊轮高度等因素对尖轨不足位移的影响机制和特征。试验结果表明：现有设计尖轨预弯可使尖轨不足位移下降30%以上；缩短尖轨可动段长度可减小尖轨不足位移，但同时会减小转辙器最小轮缘槽宽，并增大第3牵引点扳动力，尖轨最小轮缘槽宽和最后一个牵引点扳动力是缩短尖轨可动段长度的控制因素；小范围调整固定端所有扣件支距后，尖轨不足位移变化较小，仅减小固定端第1组扣件支距时，尖轨靠近固定端1.2 m范围内不足位移略有降低，其余部分不足位移变化较小；在滑床板上安装辊轮或涂覆润滑剂等减小尖轨与滑床板摩擦因数的措施可有效降低尖轨扳动力和不足位移，实施减摩措施后，扳动力减幅约为30%，不足位移减幅超过20%；改变辊轮高度对尖轨不足位移的影响并不明显，但辊轮高度不宜过低，以防转换过程中辊轮失效导致扳动力和不足位移激增。研究结果可为高速铁路道岔转辙器结构优化和新一代400 km·h^-1高速铁路道岔的研发提供参考。
- 高速铁路 /
- 道岔 /
- 尖轨 /
- 不足位移 /
- 扳动力
Abstract: To simulate the switching process of high-speed railway turnout switch under operating conditions, according to the switching characteristics of high-speed railway turnout switch, an experimental platform of the switching prototype of passenger dedicated railway No.18 turnout switch was established in a production workshop of turnout. The shaft pin type load cell was used to measure the switching force of the switch, and the difference between the actual and theoretical offset distances of straight and curved switch rails was taken as the insufficient displacement of switch rails. Switching experiments were carried out to explore the influence mechanism and characteristics of switch rail pre-bending, movable section length of switch rail, offset distance of fasteners at the fixed end of switch rail, friction coefficient of slide plate, and height of roller on the insufficient displacement of switch rail. Experimental results show that the designed switch rail pre-bending can reduce the insufficient displacement of switch rail by more than 30%, and the shortening of the movable section length of switch rail can reduce the insufficient displacement of switch rail, but decrease the minimum wheel flangeway width of the switch and increase the switching force at the third traction point. The minimum wheel flangeway width of swith rail and the switching force at the last traction point are the control factors for shortening the movable section length of switch rail. After the adjustment of the offset distances of all fasteners at the fixed end in a small range, the change of insufficient displacement of switch rail is small. When only reducing the offset distance of the first group of fasteners at the fixed end, the insufficient displacement of switch rail decreases slightly within the range of 1.2 m close to the fixed end, and the insufficient displacements at other sections change slightly. The measures of reducing the friction coefficient between the switch rail and the slide plate, such as the roller installation and lubricant coating on the slide plate, can effectively reduce the switching force and insufficient displacement of switch rail. After the implementation of these antifriction measures, the switching force decreases by about 30%, and the insufficient displacement decreases by more than 20%. The influence of changing the height of roller on the insufficient displacement of switch rail is not obvious, but the height of roller should not be too low, in order to avoid a surge in the switching force and insufficient displacement caused by the failure of roller in the switching process. The research results can provide important references for the structure optimization of high-speed railway turnout switch and the development of a new generation of 400 km·h^-1 high-speed railway turnout. 7 tabs, 20 figs, 31 refs.
- high-speed railway /
- turnout /
- switch rail /
- insufficient displacement /
- switching force

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图 1 转辙器结构示意

Figure 1. Structural schematic of switch

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图 2 转换设备结构示意

Figure 2. Structural schematic of switching equipment

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图 3 试验设备

Figure 3. Experimental equipment

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图 4 尖轨顶弯

Figure 4. Bending of switch rail

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图 5 F卡设置方法

Figure 5. Installation method of F restrainer

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图 6 不同尺寸轨距块

Figure 6. Gauge blocks with different sizes

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图 7 辊轮

Figure 7. Roller

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图 8 滑床板涂覆润滑剂

Figure 8. Lubricant coating on slide plate

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图 9 预弯前后尖轨不足位移分布特性

Figure 9. Distribution characteristics of insufficient displacements of switch rail before and after pre-bending

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图 10 预弯前后扳动力变化规律

Figure 10. Change laws of switching forces before and after pre-bending

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图 11 不同可动段长度下尖轨不足位移分布特性

Figure 11. Distribution characteristics of insufficient displacements of switch rail under different movable section lengths

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图 12 不同可动段长度下最小轮缘槽宽变化规律

Figure 12. Change laws of minimum wheel flangeway widths under different movable section lengths

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图 13 不同可动段长度条件下扳动力变化规律

Figure 13. Change laws of switching forces under different movable section lengths

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图 14 全部扣件支距调整后尖轨不足位移分布特性

Figure 14. Distribution characteristics of insufficient displacements of switch rail after offset distance adjustment of all fasteners

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图 15 第1组扣件支距调整后尖轨不足位移分布特性

Figure 15. Distribution characteristics of insufficient displacements of switch rail after offset distance adjustment of first group of fasteners

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图 16 有无辊轮条件下尖轨不足位移分布特性

Figure 16. Distribution characteristics of insufficient displacements of switch rail with or without roller

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图 17 有无辊轮条件下扳动力变化规律

Figure 17. Change laws of switching forces with or without roller

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图 18 有无润滑剂条件下尖轨不足位移分布特性

Figure 18. Distribution characteristics of insufficient displacements of switch rail with or without lubricant

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图 19 有无润滑剂条件下各牵引点扳动力变化规律

Figure 19. Change laws of switching forces of different traction points with or without lubricant

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图 20 不同辊轮高度条件下尖轨不足位移分布特性

Figure 20. Distribution characteristics of insufficient displacements of switch rail under different roller heights

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表 1 预弯前后尖轨不足位移变化规律

Table 1. Change laws of insufficient displacements of switch rail before and after pre-bending mm

工况		无预弯	预弯
直尖轨	最大值	3.0	2.0
直尖轨	均值	2.1	1.3
曲尖轨	最大值	4.5	3.1
曲尖轨	均值	2.8	2.1

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表 2 不同可动段长度条件下尖轨不足位移变化规律

Table 2. Change laws of insufficient displacements of switch rail under different movable section lengths

工况		+3	+2	+1	0	-1	-2
可动段长度/m		16.945	17.545	18.145	18.745	19.345	19.945
直尖轨不足位移/mm	峰值	2.8	3.2	3.2	3.5	3.9	4.9
直尖轨不足位移/mm	均值	2.0	2.3	2.3	2.5	2.7	3.8
曲尖轨不足位移/mm	峰值	1.6	2.1	3.4	3.6	4.0	4.6
曲尖轨不足位移/mm	均值	1.1	1.3	2.1	2.6	2.4	3.1

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表 3 全部扣件支距调整后尖轨不足位移变化规律

Table 3. Change laws of insufficient displacements of switch rail after offset distance adjustment of all fasteners mm

工况		设计值减小1 mm	设计值	设计值增加1 mm
直尖轨不足位移	最大值	3.6	3.5	3.8
直尖轨不足位移	均值	2.5	2.8	2.8
曲尖轨不足位移	最大值	4.8	4.9	5.0
曲尖轨不足位移	均值	3.2	3.0	3.2

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表 4 第1组扣件支距调整后尖轨不足位移变化规律

Table 4. Change laws of insufficient displacements of switch rail after offset distance adjustment of first group of fasteners mm

工况		设计值减小1 mm	设计值
直尖轨不足位移	最大值	2.6	2.6
直尖轨不足位移	均值	1.9	2.0
曲尖轨不足位移	最大值	4.3	4.4
曲尖轨不足位移	均值	2.7	2.9

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表 5 有无辊轮条件下尖轨不足位移变化规律

Table 5. Change laws of insufficient displacements of switch rail with or without roller mm

工况		有辊轮	无辊轮
直尖轨不足位移	最大值	2.3	3.1
直尖轨不足位移	均值	1.7	2.4
曲尖轨不足位移	最大值	3.7	4.7
曲尖轨不足位移	均值	2.6	3.2

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表 6 有无润滑剂条件下尖轨不足位移变化规律

Table 6. Change laws of insufficient displacements of switch rail with or without lubricant mm

工况		涂覆润滑剂	未涂润滑剂
直尖轨不足位移	最大值	3.7	5.2
直尖轨不足位移	均值	2.8	3.9
曲尖轨不足位移	最大值	4.4	5.7
曲尖轨不足位移	均值	2.8	3.8

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表 7 不同辊轮高度条件下尖轨不足位移变化规律

Table 7. Change laws of insufficient displacements of switch rail under different roller heights

工况		靠近基本轨侧辊轮高度/远离基本轨侧辊轮高度/mm
工况		1.5/1.5	1.5/3.0	1.5/4.0	4.0/4.0
直尖轨不足位移	最大值	2.6	2.7	2.6	2.7
直尖轨不足位移	均值	2.1	2.0	2.0	2.1
曲尖轨不足位移	最大值	4.5	4.6	4.9	4.1
曲尖轨不足位移	均值	2.9	3.1	3.1	2.8

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高速铁路道岔尖轨不足位移控制方法

doi: 10.19818/j.cnki.1671-1637.2022.02.006

作者简介:
王璞(1988-)，男，河北沧州人，中国铁道科学研究院集团有限公司副研究员，工学博士，从事铁路道岔理论与试验研究

曾瑞东：ZENG Rui-dong(1994-), male, engineer, zrd2016@yeah.net

通讯作者:
曾瑞东(1994-)，男，浙江温州人，杭州铁路设计院有限责任公司工程师

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Control method for insufficient displacement of switch rail in high-speed railway turnout

Author Bio:
WANG Pu(1988-), male, associate professor, PhD, wpwp2012@yeah.net

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留言板

高速铁路道岔尖轨不足位移控制方法

doi: 10.19818/j.cnki.1671-1637.2022.02.006

作者简介: 王璞(1988-)，男，河北沧州人，中国铁道科学研究院集团有限公司副研究员，工学博士，从事铁路道岔理论与试验研究 曾瑞东：ZENG Rui-dong(1994-), male, engineer, zrd2016@yeah.net

通讯作者: 曾瑞东(1994-)，男，浙江温州人，杭州铁路设计院有限责任公司工程师

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Control method for insufficient displacement of switch rail in high-speed railway turnout

Author Bio: WANG Pu(1988-), male, associate professor, PhD, wpwp2012@yeah.net

计量

出版历程

目录

作者简介:
王璞(1988-)，男，河北沧州人，中国铁道科学研究院集团有限公司副研究员，工学博士，从事铁路道岔理论与试验研究

曾瑞东：ZENG Rui-dong(1994-), male, engineer, zrd2016@yeah.net

通讯作者:
曾瑞东(1994-)，男，浙江温州人，杭州铁路设计院有限责任公司工程师

Author Bio:
WANG Pu(1988-), male, associate professor, PhD, wpwp2012@yeah.net