A whole-board type point blade base

CN224692482UActive Publication Date: 2026-08-28WUHU CRSIC JIFU RAIL CO LTD
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Patent Information

Application Number
CN202521695981.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-11
Publication Date
2026-08-28
Estimated Expiration
2035-08-11

AI Technical Summary

Technical Problem

[0003]1.焊接接头残余应力：由于采用S355J2(Q355B)底板与NM400耐磨板的组合结构，在焊接过程中容易产生较大的残余应力，导致整体疲劳寿命受限，尤其是在高负荷、高频振动环境下，焊接接头易发生早期失效

Benefits of technology

[0013]1.高强度与高刚性：本实用新型采用厚度为180mm的NM400耐磨钢板作为原材料，一体成型加工，无需焊接，彻底避免了因焊接引起的残余应力和晶间腐蚀问题。其屈服强度可达1200MPa，远超传统S355J2底板的355MPa屈服强度，极大提升了结构的整体强度和刚性，能够适应大轴重车辆的运行需求。

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Abstract

The utility model discloses a whole board type point rail seat, its main body structure is integrative whole component of integrated mould, is made through numerical control cutting processing to single thickness 180mm NM400 wear -resisting steel plate, has no splicing weld. The point rail seat top surface is equipped with the point rail groove for positioning and fixed point rail along the center line direction, and a plurality of electric rotating machine installation grooves are arranged at one side along the length direction interval, are used to install the switch machine, and the other side is continuously provided with the buckling groove, is used to install the elastic fastener, realizes reliable connection with the sleeper. The utility model discloses through high -strength material, high -precision processing, exempt from welding design, has realized excellent structural strength, precision control and quality stability, especially suitable for heavy load, high -speed and extremely cold environment under railway turnout system, satisfies the strict requirement of high -end customer to track part performance.
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Claims

1. A single-plate type switch rail seat, characterized in that, The switch rail seat (10) is an integral structure with a top surface having a switch rail groove (10a) for positioning and fixing the switch rail along the center line. Multiple electric switch machine mounting grooves (10b) are spaced apart along the length of one side, and a clamping groove (10c) is continuously provided on the other side. The electric switch machine mounting groove (10b) is used to install the switch machine, and the clamping groove (10c) is used to install elastic fasteners to fix the switch rail seat (10) to the sleeper.

2. The integral plate type switch rail seat according to claim 1, characterized in that, The switch rail seat (10) is integrally formed by CNC cutting of a single 180mm thick steel plate, and has no splicing welds.

3. A single-plate type switch rail seat according to claim 2, characterized in that, The steel plate is made of NM400 wear-resistant steel plate.

4. The integral plate type switch rail seat according to claim 2, characterized in that, The machining accuracy of the CNC cutting is ±0.2mm.