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CN111098639A - 槽壳中空分离的平直梁结构车桥 - Google Patents

槽壳中空分离的平直梁结构车桥 Download PDF

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Publication number
CN111098639A
CN111098639A CN201811248873.9A CN201811248873A CN111098639A CN 111098639 A CN111098639 A CN 111098639A CN 201811248873 A CN201811248873 A CN 201811248873A CN 111098639 A CN111098639 A CN 111098639A
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axle
axle housing
housing
motor
hollow
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贺林
谢冬
关庆生
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Beijing Huatian Automobile Technology Co ltd
Hefei University of Technology
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Beijing Huatian Automobile Technology Co ltd
Hefei University of Technology
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Priority to CN201811248873.9A priority Critical patent/CN111098639A/zh
Priority to US16/515,072 priority patent/US20200130412A1/en
Publication of CN111098639A publication Critical patent/CN111098639A/zh
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/12—Torque-transmitting axles
    • B60B35/16—Axle housings
    • B60B35/163—Axle housings characterised by specific shape of the housing, e.g. adaptations to give space for other vehicle elements like chassis or exhaust system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/12—Torque-transmitting axles
    • B60B35/16—Axle housings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/004—Mounting arrangements for axles
    • B60B35/006—Mounting arrangements for axles with mounting plates or consoles fitted to axles
    • B60B35/007—Mounting arrangements for axles with mounting plates or consoles fitted to axles for mounting suspension elements to axles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/12—Torque-transmitting axles
    • B60B35/121—Power-transmission from drive shaft to hub
    • B60B35/122—Power-transmission from drive shaft to hub using gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/12—Torque-transmitting axles
    • B60B35/14—Torque-transmitting axles composite or split, e.g. half- axles; Couplings between axle parts or sections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
    • B60G11/04—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only arranged substantially parallel to the longitudinal axis of the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
    • B60G11/10—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G9/00—Resilient suspensions of a rigid axle or axle housing for two or more wheels
    • B60G9/003—Resilient suspensions of a rigid axle or axle housing for two or more wheels the axle being rigidly connected to a trailing guiding device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
    • B60K17/165—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing provided between independent half axles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/30—Rigid axle suspensions
    • B60G2200/31—Rigid axle suspensions with two trailing arms rigidly connected to the axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/40—Indexing codes relating to the wheels in the suspensions
    • B60G2200/422—Driving wheels or live axles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/10—Type of spring
    • B60G2202/11—Leaf spring
    • B60G2202/112—Leaf spring longitudinally arranged
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/30—Constructional features of rigid axles
    • B60G2206/32—Hollow cross section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2300/00—Indexing codes relating to the type of vehicle
    • B60G2300/50—Electric vehicles; Hybrid vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K2001/001—Arrangement or mounting of electrical propulsion units one motor mounted on a propulsion axle for rotating right and left wheels of this axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/14—Trucks; Load vehicles, Busses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/91—Electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2410/00—Constructional features of vehicle sub-units
    • B60Y2410/10—Housings

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Vehicle Body Suspensions (AREA)
  • Motor Power Transmission Devices (AREA)

Abstract

一种槽壳中空分离的平直梁结构车桥，其特征在于：所述车桥支撑横梁呈现中空分离式，即车桥中部横梁向两侧张开，车桥中部留有一定的空间布置电机、变速机构、减速机构、和差速机构；车桥中部横梁采用U型槽壳结构，与两端碗口一体化的平直梁，槽壳断面高度相同，车桥中部横梁采用直梁。本发明的优点是：将集成在电驱动桥上的电机、减速器和差速器集成固定到簧上，降低了簧下质量。电机高度升高，减轻其恶劣的工作环境，电机也不易退磁。若采用变速器结构，簧上换挡也比簧下换挡平顺。

Description

槽壳中空分离的平直梁结构车桥
技术领域
本发明涉及电动车技术领域一种电动车桥，特别是涉及适用于电动汽车驱动系统、传动系统、后桥系统。
背景技术
目前纯电动汽车的驱动后桥大多数将传统后桥稍作改动的方式。部分整车厂采用电机与传统驱动桥集成的电驱动桥方案，取消传动轴，把电机和固定速比的减速机构和差速机构集成为一个整体，通过两根半轴连接驱动车轮，这种方案基本上还是属于传统动力传动结构，导致簧下质量增加。
发明内容
本发明的目的是针对现在的电驱动桥结构中，电机、减速器、差速器都集成到驱动桥上，导致簧下质量过大，电机工作环境恶劣，若采用换挡机构，簧下剧烈的震动也可能造成换挡失败，因而提出的一种新型车桥结构。
本发明是通过以下技术方案实现的：
一种槽壳中空分离的平直梁结构车桥方案，其特征在于：所述车桥呈中空分离状，中部所留空间布置固定于底盘纵梁的电机、减速器、差速器集成体。所述车桥桥壳采用U型槽壳，所述车桥中部梁采用平直梁，桥壳两端上端面固定板簧，支撑簧上质量。
本发明的优点是：
本发明将车桥中部做成中空分离式结构，电机、减速器、差速器集成固定在底盘纵梁上。克服了目前电驱动桥簧下质量过大的缺点，若采用变速机构，则相比于变速器集成到簧下驱动桥，换挡更加平顺。空间布置紧凑合理。提高空间利用率。
附图说明：
图1 槽壳中空分离的平直梁结构桥方案示意图。
图2 桥壳部分结构方案案示意图。
图3 半轴套管结构方案示意图。
图4 半轴套管截面图。
图5 槽壳中空分离的平直梁结构车桥总成装配图。
图6 槽壳中空分离的平直梁结构车桥总成仰视图。
图7 等速驱动半轴结构方案示意图。
附图标记。
1 板簧 12 外侧万向节
2 轮毂 13 中间半轴
3 电机悬置架 14 内侧万向节
4 桥壳 15 内侧半轴
5 板簧座 16 法兰盘
6 U型螺栓 17 半轴套管
7 电机 18 减震器
8 减速器 19 差速器
9 底盘纵梁 20 轴承
10 等速驱动半轴 21 弧形钢板
11 外侧半轴 22 加强肋
具体实施方式。
参见附图。
图1是槽壳中空分离平直结构桥方案示意图，从图中可以看出：车桥桥壳2中部采用U型槽钢，车桥中部呈现中空分离式结构，留出一部分空间用于布置电机7、减速器8和差速器19。车桥的槽壳采用断面高度一致的平梁，在车桥中部梁采用直梁形式，到两端槽钢闭合，收缩至碗口状。碗口内部通过带有万向节的等速驱动半轴10，图7即为等速驱动半轴结构方案示意图。碗口上下端面可以开口或者做凸起，防止车桥上下跳动时，等速驱动半轴上下摆动时发生碰撞干涉。弧形钢板21通过焊接或螺接等紧固方式，固定在桥壳上下面两侧开口处。桥壳4的碗口部分两侧可以加焊加强肋以增加强度。
图3为半轴套管17，图4为半轴套管截面图，轴管与法兰盘做成一体，并设有台阶适应与制动器底板装配空间要求，台阶高度厚度根据制动器底板情况设定。半轴套管内装有轴承20，与等速驱动半轴10配合装配。
图5是槽壳中空分离的平直梁结构车桥总成装配图，图6是槽壳中空分离的平直梁结构车桥总成仰视图，从图4和图5中可以看出：电机7、减速器8和差速器19集成固定在底盘纵梁上，差速器19两端伸出的等速驱动半轴10，穿过桥壳4和半轴套管17，与轮毂2相连。桥壳4两侧上端面通过板簧1，支撑簧上质量。板簧1通过U型螺栓，板簧座5与桥壳4固连。

Claims (10)

1.槽壳中空分离的平直梁结构车桥，包括桥壳、弧形钢板、半轴套管等，其特征在于：所述车桥中部中空，所留空间用于布置固定于底盘纵梁的电机，减速器，差速器等机构，电机动力传递到差速器，通过两侧半轴将动力传递给车轮，驱动车辆前进。
2.根据权利要求1所述的桥壳，其特征在于：桥壳采用U型槽壳，桥壳中部中空分离。
3.根据权利要求1所述的桥壳，其特征在于：桥壳中部梁采用平直梁，桥壳各断面高度相同。
4.根据权利要求1所述的桥壳，其特征在于：桥壳两端收缩，U型槽壳收缩成封闭方形碗口状，方形碗口上端面用于固定板簧，桥壳内侧通过带有万向节的等速驱动半轴。
5.根据权利要求1所述的弧形钢板：其特征在于：弧形钢板通过焊接或螺接等紧固方式，固定在桥壳两侧开口处。
6.根据权利要求1所述的半轴套管，其特征在于：所述半轴套管与中部桥壳焊接在一起，所述半轴套管内置轴承孔，用于放置通过半轴的轴承。
7.根据权利要求1所述的桥壳，其特征在于：桥壳两端碗口部分，上下平面可根据半轴上下跳动是否干涉以及干涉量，开口或者冲压凸起。
8.根据权利要求1所示的半轴套管，其特征在于：所述半轴套管端部法兰做出台阶，适应制动器底板空间布置要求。
9.根据权利要求1所述的半轴套管，其特征在于：所述半轴套管可做长，桥壳部分相对减短，从而将外侧万向节部分伸至半轴套管内侧。
10.根据权利要求1所述的桥壳，其特征在于，所述桥壳两端碗口两侧面可分别焊接加强肋。
CN201811248873.9A 2018-10-25 2018-10-25 槽壳中空分离的平直梁结构车桥 Pending CN111098639A (zh)

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CN201811248873.9A CN111098639A (zh) 2018-10-25 2018-10-25 槽壳中空分离的平直梁结构车桥
US16/515,072 US20200130412A1 (en) 2018-10-25 2019-07-18 Bearing Axle With Straight Shell And Hollow Cross Section

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