The invention discloses a heavy truck seat which comprises a backrest framework, a cushion framework, a seat fork arm, a lower frame and two seat guide rails, the bottom end of the backrest framework is connected to one end of the cushion framework, the lower end of the cushion framework is connected to the top end of the seat fork arm, the lower end of the seat fork arm is connected to the top end of the lower frame, and the lower end of the seat fork arm is connected to the two seat guide rails. The lower end of the lower frame is slidably connected to the top end of a seat guide rail, and the bottom end of the seat guide rail is connected to a vehicle body. The backrest framework is connected to the cushion framework through a first connecting piece, the first connecting piece is used for ensuring the Y-direction rigidity of the seat, the first-order left-right swaying mode frequency value of the whole heavy truck seat is not lower than 13.8 Hz, and the first-order front-back swaying mode frequency value of the whole heavy truck seat is not lower than 15.4 Hz; the first-order yaw modal analysis value is not smaller than 13.8 Hz, the tire excitation frequency is effectively avoided, the risk of seat resonance is reduced, and therefore the dynamic comfort of the seat is improved.
本发明公开了一种重卡座椅,包括靠背骨架、坐垫骨架、座椅叉臂、下框架、两个座椅导轨,所述靠背骨架底端连接在坐垫骨架一端上,所述坐垫骨架低端连接在座椅叉臂顶端处,所述座椅叉臂低端连接在下框架顶端,所述下框架低端可滑动连接在座椅导轨顶端,所述座椅导轨底端连接在车身上;所述靠背骨架通过第一连接件连接在坐垫骨架上,所述第一连接件用于保证座椅Y向刚度,所述重卡座椅整体一阶左右横摆模态频率值不低于13.8Hz,一阶前后摆模态频率值不低于15.4Hz;本发明一阶横摆模态分析值为不小于13.8Hz,有效地避开了轮胎激励频率,降低了座椅发生共振的风险,从而提高座椅动态舒适性。
Heavy truck seat
一种重卡座椅
2023-09-08
Patent
Electronic Resource
Chinese
IPC: | B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet |
Seat Belt “Effectiveness Perception” in Heavy Truck Accidents
SAE Technical Papers | 1986
|Seat Belt "Effectiveness Perception" in Heavy Truck Accidents
Automotive engineering | 1986
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