WO2013078787A1 - Four-axle truck crane and steering mechanism thereof - Google Patents

Four-axle truck crane and steering mechanism thereof Download PDF

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Publication number
WO2013078787A1
WO2013078787A1 PCT/CN2012/071173 CN2012071173W WO2013078787A1 WO 2013078787 A1 WO2013078787 A1 WO 2013078787A1 CN 2012071173 W CN2012071173 W CN 2012071173W WO 2013078787 A1 WO2013078787 A1 WO 2013078787A1
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WO
WIPO (PCT)
Prior art keywords
steering
truck crane
axle truck
rocker arm
axle
Prior art date
Application number
PCT/CN2012/071173
Other languages
French (fr)
Chinese (zh)
Inventor
刘宇新
吴桂明
彭友谊
周庆喜
Original Assignee
中联重科股份有限公司
湖南中联重科专用车有限责任公司
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Publication date
Application filed by 中联重科股份有限公司, 湖南中联重科专用车有限责任公司 filed Critical 中联重科股份有限公司
Publication of WO2013078787A1 publication Critical patent/WO2013078787A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
    • B62D7/14—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
    • B62D7/142—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering specially adapted for particular vehicles, e.g. tractors, carts, earth-moving vehicles, trucks
    • B62D7/144—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering specially adapted for particular vehicles, e.g. tractors, carts, earth-moving vehicles, trucks for vehicles with more than two axles

Definitions

  • the present invention relates to the field of construction machinery, and more particularly to a four-axle truck crane and a steering mechanism thereof.
  • a truck crane can meet the requirements of long-distance driving and the mobility of a small field. The driving conditions must also meet various national requirements for automobile requirements, such as GB7258.
  • the existing four-axle truck crane adopts the first two-bridge steering, and the chassis steering mechanism is as shown in Fig. 1.
  • the steering mechanism components are: steering gear 10', first steering rod 20', first rocker arm 30', second steering A pull rod 40', a third steering rod 50', a second rocker arm 60', and a fourth steering rod 70'.
  • the steering gear 10' When the truck crane needs to be turned, the steering gear 10' is driven by rotating the steering wheel, and the steering wheel causes the front two axle wheels to generate the required corners, and the rear second axle wheels do not participate in the steering.
  • the center of the first two bridges is marked with ⁇ and 02'. Since the truck cranes need to carry longer booms, the wheelbase is generally longer, especially for four-axle truck cranes. If the rear axle does not participate in steering, the turning radius is large and the maneuverability is poor. In the existing four-axle truck crane, the steering system realizes that the outer diameter of the steering passage circle is generally close to 25 m, which cannot meet the requirements for entering the narrow field.
  • An object of the present invention is to provide a four-axle truck crane having a small turning radius and high maneuverability and a steering mechanism thereof.
  • the present invention provides a four-axle truck crane steering mechanism including a first steering mechanism, the first steering mechanism including a steering gear and a first transmission mechanism, the first transmission mechanism connecting the steering gear and the first bridge and the fourth axle of the four-axle truck crane
  • the second bridge further includes a second steering mechanism including a second transmission mechanism that connects the first transmission mechanism and the third bridge and the fourth bridge of the four-axle truck crane.
  • the second transmission mechanism includes a fifth steering rod and a third rocker arm, one end of the fifth steering rod is hinged to the first transmission mechanism, and the other end is hinged to the third rocker arm, and the third rocker arm is directly or indirectly Connected to the third and fourth bridges of a four-axle truck crane.
  • the second transmission mechanism further includes a sixth steering rod and a fourth rocker arm. One end of the sixth steering rod is hinged to the third rocker arm, and the other end is hinged to the fourth rocker arm, and the fourth rocker arm is directly or Indirectly connected to the third and fourth bridges of a four-axle truck crane.
  • the second transmission mechanism further includes a seventh steering rod, one end of the seventh steering rod is hinged to the fourth rocker arm, and the other end is hinged to the third bridge of the four-axis crane.
  • the second transmission mechanism further includes an eighth steering rod, one end of the eighth steering rod is hinged to the fourth rocker arm, and the other end is hinged to the fourth bridge of the four-axis crane.
  • the present invention also provides a four-axle truck crane including the aforementioned four-axle truck crane steering mechanism.
  • FIG. 2 is a side view structural view of a four-axle truck crane steering mechanism according to the present invention
  • FIG. 3 is a four-axle truck crane according to the present invention. Schematic diagram of the top view of the steering mechanism. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • a four-axle truck crane steering mechanism according to the present invention includes a first steering mechanism including a steering gear 10 and a first transmission mechanism, and the first transmission mechanism is connected to the steering gear 10 and four.
  • the first bridge and the second bridge of the axle truck crane further include a second steering mechanism, the second steering mechanism includes a second transmission mechanism, and the second transmission mechanism connects the first transmission mechanism and the third bridge and the fourth of the four-axle truck crane bridge.
  • the steering wheel is driven by turning the steering wheel, and the steering wheel 10 and the first transmission mechanism and the second transmission mechanism are used to generate the required rotation angles of the wheels of the first bridge, the second bridge, the third bridge and the fourth bridge, thereby realizing All round Steering, the diameter of the channel can be reduced, and the diameter of the channel can be reduced to 20m, thereby improving the maneuverability of the four-axle truck crane and meeting the requirements for entering a narrow field. As shown in FIG.
  • the first transmission mechanism includes a first steering rod 20, a first rocker arm 30, a second steering rod 40, a third steering rod 50, a second rocker arm 60, and a fourth steering rod 70.
  • the second transmission mechanism includes a fifth steering rod 80 and a third rocker arm 90, and a fifth steering rod
  • the second transmission mechanism further includes a sixth steering rod 100 and a fourth rocker arm 120.
  • One end of the sixth steering rod 100 is hinged to the third rocker arm 90, and the other end is hinged to the fourth rocker arm 120.
  • the steering gear is driven by turning the steering wheel, and the second rocker arm 80 is transmitted to the fifth steering rod 80 via the steering gear and the first transmission mechanism, and the fifth steering rod 80 transmits the motion to the sixth through the third rocker arm 90.
  • the steering rod 100 is driven to the fourth rocker arm 120 between the third bridge and the fourth bridge.
  • the second transmission mechanism further includes a seventh steering rod 110.
  • the seventh steering rod 110 is hinged to the fourth rocker arm 120, and the other end is hinged to the third bridge of the four-axle crane.
  • the fourth rocker arm 120 is hinged with the seventh steering rod 110, and transmits the motion to the third bridge through the seventh steering rod 110, thereby driving the third axle wheel to turn.
  • the second transmission mechanism further includes an eighth steering rod 130.
  • One end of the eighth steering rod 130 is hinged to the fourth rocker arm 120, and the other end is hinged to the fourth bridge of the four-axle crane.
  • the fourth rocker arm 120 is hinged with the eighth steering rod 130, and transmits the motion to the fourth bridge through the eighth steering rod 130, thereby driving the fourth axle wheel to turn.
  • the present invention also provides a four-axle truck crane including the aforementioned four-axle truck crane steering mechanism.
  • the four-axle truck crane of the invention designs the steering mechanism according to the Ackerman principle, and the rear second bridge participates in the steering, thereby realizing the all-wheel steering, and the instantaneous steering center is larger than the prior art, so that the steering passage of the whole vehicle is rounded.
  • the truck crane which is significantly lower than the steering of the front two bridges, greatly improves the maneuverability of the vehicle.
  • the centers of the first and second bridges are indicated in Figures 2 and 3 by 01, 02, 03 and P 04, respectively.
  • the four-axle truck crane and the steering mechanism thereof of the present invention realize all-wheel steering, can reduce the diameter of the channel, and improve the four
  • the maneuverability of the axle cranes meets the requirements for entry into tight spaces.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)

Abstract

Disclosed in the present invention are a four-axle truck crane and a steering mechanism thereof. The steering mechanism of the four-axle truck crane comprises a first steering mechanism and a second steering mechanism, wherein the first steering mechanism comprises a steering gear (10) and a first driving mechanism, and the first driving mechanism connects the steering gear (10) to the first and the second axles of the four-axle truck crane; the second steering mechanism comprises a second driving mechanism, and the second driving mechanism connects the first driving mechanism to the third and the fourth axles of the four-axle truck crane. According to the four-axle truck crane and the steering mechanism thereof, all-wheel steering is achieved, the turning radii can be reduced, the maneuver performance of the four-axle truck crane can be improved and the requirement of operation in a narrow and small place can be met.

Description

四轴汽车起重机及其转向机构 技术领域 本发明涉及工程机械领域， 更具体地， 涉及一种四轴汽车起重机及其转向机构。 背景技术 汽车起重机既能够满足长距离行驶、 又能够满足狭小场地的机动性要求， 行驶工 况还必须满足国家对汽车要求的各项法规， 如 GB7258等。 现有的四轴汽车起重机采用前二桥转向， 底盘转向机构见如图 1所示， 转向机构 组成部分： 转向器 10'、 第一转向拉杆 20'、 第一摇臂 30'、 第二转向拉杆 40'、 第三转 向拉杆 50'、 第二摇臂 60'以及第四转向拉杆 70'。 汽车起重机需要转向时， 通过转动 方向盘带动转向器 10'，经转向机构使前二桥车轮产生需要的转角，后二桥车轮不参与 转向。 前二桥的中心在中以 ΟΓ和 02'标示。 由于汽车起重机需承载较长的吊臂， 轴距一般较长， 尤其对四轴汽车起重机。 如 果后桥不参与转向， 转弯半径大， 机动性能差。 现有的四轴汽车起重机， 转向系统实 现转向通道圆的外圆直径一般接近于 25m， 不能满足进入狭小场地作业的要求。 发明内容 本发明目的在于提供一种转弯半径小、 机动性能高的四轴汽车起重机及其转向机 构。 本发明提供了一种四轴汽车起重机转向机构， 包括第一转向机构， 第一转向机构 包括转向器以及第一传动机构， 第一传动机构连接转向器和四轴汽车起重机的第一桥 和第二桥， 还包括第二转向机构， 第二转向机构包括第二传动机构， 第二传动机构连 接第一传动机构以及四轴汽车起重机的第三桥和第四桥。 进一步地， 第二传动机构包括第五转向拉杆和第三摇臂， 第五转向拉杆的一端与 第一传动机构相铰接， 其另一端与第三摇臂相铰接， 第三摇臂直接或间接连接到四轴 汽车起重机的第三桥和第四桥。 进一步地， 第二传动机构还包括第六转向拉杆和第四摇臂， 第六转向拉杆的一端 与第三摇臂相铰接， 其另一端与第四摇臂相铰接， 第四摇臂直接或间接连接到四轴汽 车起重机的第三桥和第四桥。 进一步地， 第二传动机构还包括第七转向拉杆， 第七转向拉杆的一端与第四摇臂 相铰接， 其另一端与四轴起重机的第三桥相铰接。 进一步地， 第二传动机构还包括第八转向拉杆， 第八转向拉杆的一端与第四摇臂 相铰接， 其另一端与四轴起重机的第四桥相铰接。 本发明还提供了一种四轴汽车起重机， 包括前述四轴汽车起重机转向机构。 采用本发明的四轴汽车起重机及其转向机构， 需要转向时， 通过转动方向盘带动 转向器， 经转向器及第一传动机构和第二传动机构使第一桥、 第二桥、 第三桥和第四 桥的车轮产生需要的转角， 从而实现了全轮转向， 能够缩小该通道圆直径， 提高该四 轴汽车起重机的机动性能， 能够满足进入狭小场地作业的要求。 附图说明 构成本申请的一部分的附图用来提供对本发明的进一步理解， 本发明的示意性实 施例及其说明用于解释本发明， 并不构成对本发明的不当限定。 在附图中： 图 1是现有的四轴汽车起重机的结构示意图； 图 2是根据本发明的四轴汽车起重机转向机构的侧视结构示意图； 以及 图 3是根据本发明的四轴汽车起重机转向机构的俯视结构示意图。 具体实施方式 下面将参考附图并结合实施例来详细说明本发明。 如图 2和图 3所示，根据本发明的四轴汽车起重机转向机构，包括第一转向机构， 第一转向机构包括转向器 10以及第一传动机构， 第一传动机构连接转向器 10和四轴 汽车起重机的第一桥和第二桥， 还包括第二转向机构， 第二转向机构包括第二传动机 构， 第二传动机构连接第一传动机构以及四轴汽车起重机的第三桥和第四桥。 需要转向时，通过转动方向盘带动转向器， 经转向器 10及第一传动机构和第二传 动机构使第一桥、 第二桥、 第三桥和第四桥的车轮产生需要的转角， 从而实现了全轮 转向， 能够缩小该通道圆直径， 使该通道圆直径缩小到 20m， 从而提高了该四轴汽车 起重机的机动性能， 能够满足进入狭小场地作业的要求。 如图 2所示， 第一传动机构包括第一转向拉杆 20、 第一摇臂 30、 第二转向拉杆 40、 第三转向拉杆 50、 第二摇臂 60以及第四转向拉杆 70。 如图 2所示， 第二传动机构包括第五转向拉杆 80和第三摇臂 90， 第五转向拉杆BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of construction machinery, and more particularly to a four-axle truck crane and a steering mechanism thereof. BACKGROUND OF THE INVENTION A truck crane can meet the requirements of long-distance driving and the mobility of a small field. The driving conditions must also meet various national requirements for automobile requirements, such as GB7258. The existing four-axle truck crane adopts the first two-bridge steering, and the chassis steering mechanism is as shown in Fig. 1. The steering mechanism components are: steering gear 10', first steering rod 20', first rocker arm 30', second steering A pull rod 40', a third steering rod 50', a second rocker arm 60', and a fourth steering rod 70'. When the truck crane needs to be turned, the steering gear 10' is driven by rotating the steering wheel, and the steering wheel causes the front two axle wheels to generate the required corners, and the rear second axle wheels do not participate in the steering. The center of the first two bridges is marked with ΟΓ and 02'. Since the truck cranes need to carry longer booms, the wheelbase is generally longer, especially for four-axle truck cranes. If the rear axle does not participate in steering, the turning radius is large and the maneuverability is poor. In the existing four-axle truck crane, the steering system realizes that the outer diameter of the steering passage circle is generally close to 25 m, which cannot meet the requirements for entering the narrow field. SUMMARY OF THE INVENTION An object of the present invention is to provide a four-axle truck crane having a small turning radius and high maneuverability and a steering mechanism thereof. The present invention provides a four-axle truck crane steering mechanism including a first steering mechanism, the first steering mechanism including a steering gear and a first transmission mechanism, the first transmission mechanism connecting the steering gear and the first bridge and the fourth axle of the four-axle truck crane The second bridge further includes a second steering mechanism including a second transmission mechanism that connects the first transmission mechanism and the third bridge and the fourth bridge of the four-axle truck crane. Further, the second transmission mechanism includes a fifth steering rod and a third rocker arm, one end of the fifth steering rod is hinged to the first transmission mechanism, and the other end is hinged to the third rocker arm, and the third rocker arm is directly or indirectly Connected to the third and fourth bridges of a four-axle truck crane. Further, the second transmission mechanism further includes a sixth steering rod and a fourth rocker arm. One end of the sixth steering rod is hinged to the third rocker arm, and the other end is hinged to the fourth rocker arm, and the fourth rocker arm is directly or Indirectly connected to the third and fourth bridges of a four-axle truck crane. Further, the second transmission mechanism further includes a seventh steering rod, one end of the seventh steering rod is hinged to the fourth rocker arm, and the other end is hinged to the third bridge of the four-axis crane. Further, the second transmission mechanism further includes an eighth steering rod, one end of the eighth steering rod is hinged to the fourth rocker arm, and the other end is hinged to the fourth bridge of the four-axis crane. The present invention also provides a four-axle truck crane including the aforementioned four-axle truck crane steering mechanism. The four-axle truck crane and the steering mechanism thereof according to the present invention, when steering is required, the steering wheel is driven by rotating the steering wheel, and the first bridge, the second bridge, the third bridge and the first transmission mechanism and the second transmission mechanism are driven by the steering gear and the first transmission mechanism and the second transmission mechanism The wheel of the fourth bridge produces the required rotation angle, thereby achieving all-wheel steering, which can reduce the diameter of the channel, improve the maneuverability of the four-axle crane, and meet the requirements for entry into a narrow field. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in FIG. 1 is a schematic structural view of a conventional four-axle truck crane; FIG. 2 is a side view structural view of a four-axle truck crane steering mechanism according to the present invention; and FIG. 3 is a four-axle truck crane according to the present invention. Schematic diagram of the top view of the steering mechanism. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. As shown in FIG. 2 and FIG. 3, a four-axle truck crane steering mechanism according to the present invention includes a first steering mechanism including a steering gear 10 and a first transmission mechanism, and the first transmission mechanism is connected to the steering gear 10 and four. The first bridge and the second bridge of the axle truck crane further include a second steering mechanism, the second steering mechanism includes a second transmission mechanism, and the second transmission mechanism connects the first transmission mechanism and the third bridge and the fourth of the four-axle truck crane bridge. When steering is required, the steering wheel is driven by turning the steering wheel, and the steering wheel 10 and the first transmission mechanism and the second transmission mechanism are used to generate the required rotation angles of the wheels of the first bridge, the second bridge, the third bridge and the fourth bridge, thereby realizing All round Steering, the diameter of the channel can be reduced, and the diameter of the channel can be reduced to 20m, thereby improving the maneuverability of the four-axle truck crane and meeting the requirements for entering a narrow field. As shown in FIG. 2, the first transmission mechanism includes a first steering rod 20, a first rocker arm 30, a second steering rod 40, a third steering rod 50, a second rocker arm 60, and a fourth steering rod 70. As shown in FIG. 2, the second transmission mechanism includes a fifth steering rod 80 and a third rocker arm 90, and a fifth steering rod
80的一端与第一传动机构相铰接， 其另一端与第三摇臂 90相铰接。 第二传动机构还 包括第六转向拉杆 100和第四摇臂 120， 第六转向拉杆 100的一端与第三摇臂 90相铰 接， 其另一端与第四摇臂 120相铰接。 需要转向时， 通过转动方向盘带动转向器， 经转向器及第一传动机构的第二摇臂 60传动给第五转向拉杆 80，第五转向拉杆 80将运动通过第三摇臂 90传动给第六转向 拉杆 100， 第六转向拉杆 100将运动传动给位于第三桥和第四桥之间的第四摇臂 120。 如图 2所示， 第二传动机构还包括第七转向拉杆 110， 第七转向拉杆 110的一端 与第四摇臂 120相铰接， 其另一端与四轴起重机的第三桥相铰接。 第四摇臂 120与第七转向拉杆 110相铰接， 并通过第七转向拉杆 110将运动传递 给第三桥， 从而带动第三桥车轮转向。 同样的， 第二传动机构还包括第八转向拉杆 130， 第八转向拉杆 130的一端与第 四摇臂 120相铰接， 其另一端与四轴起重机的第四桥相铰接。 第四摇臂 120与第八转向拉杆 130相铰接， 并通过第八转向拉杆 130将运动传递 给第四桥， 从而带动第四桥车轮转向。 本发明还提供了一种四轴汽车起重机， 包括前述的四轴汽车起重机转向机构。 本发明四轴汽车起重机， 根据阿克曼原理设计了转向机构， 后二桥参与转向， 从 而实现了全轮转向， 瞬时转向中心比现有技术的前移大， 这样使整车的转向通道圆明 显低于前二桥转向的汽车起重机， 大大提高了整车的机动性。 前二桥和后二桥的中心 在图 2和图 3中分别以 01、 02、 03禾 P 04标示。 从以上的描述中， 可以看出， 本发明上述的实施例实现了如下技术效果： 本发明的四轴汽车起重机及其转向机构， 实现了全轮转向， 能够缩小该通道圆直 径， 提高该四轴汽车起重机的机动性能， 能够满足进入狭小场地作业的要求。 以上所述仅为本发明的优选实施例而已， 并不用于限制本发明， 对于本领域的技 术人员来说， 本发明可以有各种更改和变化。 凡在本发明的精神和原则之内， 所作的 任何修改、 等同替换、 改进等， 均应包含在本发明的保护范围之内。 One end of the 80 is hinged to the first transmission mechanism, and the other end is hinged to the third rocker arm 90. The second transmission mechanism further includes a sixth steering rod 100 and a fourth rocker arm 120. One end of the sixth steering rod 100 is hinged to the third rocker arm 90, and the other end is hinged to the fourth rocker arm 120. When steering is required, the steering gear is driven by turning the steering wheel, and the second rocker arm 80 is transmitted to the fifth steering rod 80 via the steering gear and the first transmission mechanism, and the fifth steering rod 80 transmits the motion to the sixth through the third rocker arm 90. The steering rod 100 is driven to the fourth rocker arm 120 between the third bridge and the fourth bridge. As shown in FIG. 2, the second transmission mechanism further includes a seventh steering rod 110. One end of the seventh steering rod 110 is hinged to the fourth rocker arm 120, and the other end is hinged to the third bridge of the four-axle crane. The fourth rocker arm 120 is hinged with the seventh steering rod 110, and transmits the motion to the third bridge through the seventh steering rod 110, thereby driving the third axle wheel to turn. Similarly, the second transmission mechanism further includes an eighth steering rod 130. One end of the eighth steering rod 130 is hinged to the fourth rocker arm 120, and the other end is hinged to the fourth bridge of the four-axle crane. The fourth rocker arm 120 is hinged with the eighth steering rod 130, and transmits the motion to the fourth bridge through the eighth steering rod 130, thereby driving the fourth axle wheel to turn. The present invention also provides a four-axle truck crane including the aforementioned four-axle truck crane steering mechanism. The four-axle truck crane of the invention designs the steering mechanism according to the Ackerman principle, and the rear second bridge participates in the steering, thereby realizing the all-wheel steering, and the instantaneous steering center is larger than the prior art, so that the steering passage of the whole vehicle is rounded. The truck crane, which is significantly lower than the steering of the front two bridges, greatly improves the maneuverability of the vehicle. The centers of the first and second bridges are indicated in Figures 2 and 3 by 01, 02, 03 and P 04, respectively. From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: The four-axle truck crane and the steering mechanism thereof of the present invention realize all-wheel steering, can reduce the diameter of the channel, and improve the four The maneuverability of the axle cranes meets the requirements for entry into tight spaces. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

权 利 要 求 书 Claim
1. 一种四轴汽车起重机转向机构， 包括第一转向机构， 所述第一转向机构包括转 向器 （10) 以及第一传动机构， 所述第一传动机构连接所述转向器 （10) 和四 轴汽车起重机的第一桥和第二桥， 其特征在于， 还包括第二转向机构， 所述第 二转向机构包括第二传动机构， 所述第二传动机构连接所述第一传动机构以及 所述四轴汽车起重机的第三桥和第四桥。 A four-axle truck crane steering mechanism, comprising a first steering mechanism, the first steering mechanism comprising a steering gear (10) and a first transmission mechanism, the first transmission mechanism connecting the steering gear (10) and a first bridge and a second bridge of a four-axle truck crane, characterized in that it further comprises a second steering mechanism, the second steering mechanism comprising a second transmission mechanism, the second transmission mechanism connecting the first transmission mechanism and The third and fourth bridges of the four-axle truck crane.
2. 根据权利要求 1所述的四轴汽车起重机转向机构， 其特征在于， 所述第二传动 机构包括第五转向拉杆（80)和第三摇臂 （90)， 所述第五转向拉杆（80) 的一 端与所述第一传动机构相铰接， 其另一端与所述第三摇臂 （90) 相铰接， 所述 第三摇臂 （90) 直接或间接连接到所述四轴汽车起重机的第三桥和第四桥。 2. The four-axle truck crane steering mechanism according to claim 1, wherein the second transmission mechanism comprises a fifth steering rod (80) and a third rocker arm (90), the fifth steering rod ( 80) is hinged to the first transmission mechanism, and the other end is hinged to the third rocker arm (90), and the third rocker arm (90) is directly or indirectly connected to the four-axle truck crane The third and fourth bridges.
3. 根据权利要求 2所述的四轴汽车起重机转向机构， 其特征在于， 所述第二传动 机构还包括第六转向拉杆（100)和第四摇臂（120)， 所述第六转向拉杆（100) 的一端与所述第三摇臂（90)相铰接，其另一端与所述第四摇臂（120)相铰接， 所述第四摇臂（120)直接或间接连接到所述四轴汽车起重机的第三桥和第四桥。 3. The four-axle truck crane steering mechanism according to claim 2, wherein the second transmission mechanism further comprises a sixth steering rod (100) and a fourth rocker arm (120), the sixth steering rod One end of (100) is hinged to the third rocker arm (90), the other end of which is hinged to the fourth rocker arm (120), and the fourth rocker arm (120) is directly or indirectly connected to the The third and fourth bridges of the four-axle truck crane.
4. 根据权利要求 3所述的四轴汽车起重机转向机构， 其特征在于， 所述第二传动 机构还包括第七转向拉杆（110)， 所述第七转向拉杆（110) 的一端与所述第四 摇臂 （120) 相铰接， 其另一端与所述四轴起重机的第三桥相铰接。 4. The four-axle truck crane steering mechanism according to claim 3, wherein the second transmission mechanism further comprises a seventh steering rod (110), one end of the seventh steering rod (110) and the The fourth rocker arm (120) is hinged and the other end is hinged to the third bridge of the four-axle crane.
5. 根据权利要求 4所述的四轴汽车起重机转向机构， 其特征在于， 所述第二传动 机构还包括第八转向拉杆（130)， 所述第八转向拉杆（130)的一端与所述第四 摇臂 （120) 相铰接， 其另一端与所述四轴起重机的第四桥相铰接。 The four-axle truck crane steering mechanism according to claim 4, wherein the second transmission mechanism further comprises an eighth steering rod (130), one end of the eighth steering rod (130) and the The fourth rocker arm (120) is hinged and the other end is hinged to the fourth bridge of the four-axle crane.
6. 一种四轴汽车起重机， 包括转向机构， 其特征在于， 所述转向机构为包括权利 要求 1至 5中任一项所述的四轴汽车起重机转向机构。 A four-axle truck crane comprising a steering mechanism, characterized in that the steering mechanism is a four-axle truck crane steering mechanism according to any one of claims 1 to 5.
PCT/CN2012/071173 2011-12-02 2012-02-15 Four-axle truck crane and steering mechanism thereof WO2013078787A1 (en)

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CN106080768B (en) * 2016-08-18 2018-07-10 安徽江淮汽车集团股份有限公司 A kind of double-front axle automobile steering system
CN109501856B (en) * 2018-12-17 2020-06-05 三一汽车起重机械有限公司 Limit steering control method and device

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