WO2013113225A1 - Supporting device and engineering machinery vehicle - Google Patents
Supporting device and engineering machinery vehicle Download PDFInfo
- Publication number
- WO2013113225A1 WO2013113225A1 PCT/CN2012/082271 CN2012082271W WO2013113225A1 WO 2013113225 A1 WO2013113225 A1 WO 2013113225A1 CN 2012082271 W CN2012082271 W CN 2012082271W WO 2013113225 A1 WO2013113225 A1 WO 2013113225A1
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- WO
- WIPO (PCT)
- Prior art keywords
- cylinder
- leg
- rotating
- telescopic
- support device
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/78—Supports, e.g. outriggers, for mobile cranes
- B66C23/80—Supports, e.g. outriggers, for mobile cranes hydraulically actuated
Definitions
- the invention relates to the field of engineering machinery, in particular to a supporting device and a construction machinery vehicle. Background technique
- FIG. 1 is a schematic structural view of a prior art construction machinery vehicle.
- the construction machine vehicle 10 includes a frame 101 and a support device 102.
- the four supporting devices of the prior art construction machinery vehicle are arranged in parallel, and the horizontal telescopic cylinders are controlled to extend from the frame through the horizontal telescopic cylinders, and the legs are extended by the vertical cylinder control legs, thereby raising the frame and performing work, but the supporting device It only includes telescopic legs, and the legs are short.
- the construction machinery vehicles are prone to tilting and rollover, resulting in accidents.
- the technical problem to be solved by the present invention is to provide a supporting device and a construction machinery vehicle, which can solve the problem that the span of the leg of the prior art supporting device is short.
- a technical solution adopted by the present invention is to provide a supporting device including a telescopic leg, a vertical cylinder, a horizontal cylinder, a rotating leg, a rotating leg cylinder, and a swing driving unit.
- the vertical cylinder includes a matching vertical piston rod and a vertical cylinder, the vertical cylinder is vertically connected to the first end of the telescopic leg, and the horizontal cylinder includes a matching horizontal piston rod And a horizontal cylinder, the first end of the horizontal cylinder is connected in parallel with the telescopic leg, the first end of the rotating leg is rotatably connected to the telescopic leg, and the rotating leg cylinder comprises a matching rotating leg cylinder piston rod and rotating A leg cylinder cylinder, a rotating leg cylinder is vertically connected to the second end of the rotating leg, and the swing driving unit is vertically connected to the rotating leg for controlling the rotation of the rotating leg.
- the telescopic leg is provided with a sliding slot for accommodating the rotating leg in the retracted state.
- the swing driving unit is a swing hydraulic cylinder
- the first end of the rotating leg is connected to the telescopic leg through a pin shaft and a swing hydraulic cylinder.
- the swing driving unit is a rod-shaped hydraulic cylinder, a rack cylinder, a rack and pinion or a manual mechanism.
- the second end of the vertical cylinder and the second end of the rotary leg cylinder are in contact with the ground through the leg plates.
- another technical solution adopted by the present invention is to provide a construction machine vehicle including a frame and a support device of any of the above, and the support device is coupled to the frame.
- the number of supporting devices is four, and four supporting devices are distributed and installed at two ends of the frame, and the rotating legs of each supporting device are disposed outward with respect to the frame.
- the present invention increases the span of the leg by utilizing the joint support function of the telescopic leg and the rotating leg, thereby improving the anti-rollover capability and operation of the construction machinery vehicle. Stability and adaptability to special conditions.
- FIG. 1 is a schematic structural view of a prior art construction machine vehicle
- Figure 2 is a front elevational view of the support device of the first embodiment of the present invention
- Figure 3 is a plan view of a support device according to a first embodiment of the present invention
- FIG. 4 is a partial structural view showing a pin joint of the support device according to the first embodiment of the present invention
- FIG. 5 is a plan view showing the construction machine of the second embodiment of the present invention in a non-operating state of the support device
- Figure 6 is a plan view showing the construction machine of the second embodiment of the present invention in a first working state of the supporting device
- Figure 7 is a plan view showing the construction machine of the second embodiment of the present invention in a second working state of the supporting device
- Figure 8 is a plan view showing the construction machine of the second embodiment of the present invention in a third working state of the supporting device
- Figure 9 is a plan view showing the construction machine of the second embodiment of the present invention in a fourth working state of the supporting device
- Figure 10 is a plan view showing the construction machine of the second embodiment of the present invention in a fifth working state of the supporting device. detailed description
- FIG. 2 is a front view of the supporting device according to the first embodiment of the present invention
- FIG. 3 is a plan view of the supporting device according to the first embodiment of the present invention, as shown in FIG. 2 and FIG.
- the supporting device 20 includes a telescopic leg 201, a chute 202, a rotating leg 203, a swinging hydraulic cylinder 204, a pin 205, a rotating leg cylinder cylinder 2061, a rotating leg cylinder piston rod 2062, a rotating leg cylinder leg plate 2063, vertical cylinder cylinder 2071, vertical cylinder piston rod 2072, vertical cylinder leg A plate 2073, a horizontal cylinder cylinder 2081 and a horizontal cylinder piston rod 2082.
- the sliding slot 202 is disposed on the telescopic leg 201 for accommodating the rotating leg 203 in a retracted state.
- the first end of the rotating leg 203 is rotatably coupled to the telescopic leg 201 through the pin 205 and the swing hydraulic cylinder 204.
- the horizontal cylinder cylinder 2081 and the horizontal cylinder piston rod 2082 cooperate to form a horizontal cylinder.
- the first end of the horizontal cylinder piston rod 2082 is horizontally connected to the first end of the telescopic leg 201, and the second end of the horizontal cylinder piston rod 2082 is inserted horizontally.
- the cylinder is in the cylinder 2081.
- the horizontal connection means that the horizontal cylinder piston rod 2082 is parallel with the telescopic leg 201.
- the horizontal cylinder piston rod and the telescopic leg may not be completely parallel.
- the rotating leg cylinder cylinder 2061 and the rotating leg cylinder piston rod 2062 cooperate to form a rotating leg cylinder, and the rotating leg cylinder cylinder 2061 is vertically connected to the second end of the rotating leg 203, and the rotating leg cylinder piston rod 2062 One end is inserted into the rotary leg cylinder cylinder 2061, and the second end of the rotary leg cylinder piston rod 2062 is connected to the rotary leg cylinder leg plate 2063, and the vertical cylinder cylinder 2071 and the vertical cylinder piston rod 2072 cooperate to form a vertical cylinder.
- the vertical cylinder cylinder 2071 is vertically connected to the first end of the telescopic leg 201, the first end of the vertical cylinder piston rod 2072 is inserted into the vertical cylinder cylinder 2071, and the second end of the vertical cylinder piston rod 2072 is connected to the vertical cylinder leg plate 2073.
- the first end of the horizontal cylinder piston rod 2082 is horizontally coupled to the first end of the telescopic leg 201.
- the first end of the horizontal cylinder piston rod 2082 can be coupled to any of the telescopic legs. Position, as long as it can ensure that the piston rod protrudes from the cylinder tube can promote the telescopic legs.
- connection relationship between the cylinder and the piston rod of the vertical cylinder, the rotary leg cylinder and the horizontal cylinder can be exchanged with each other, for example: the first end of the vertical cylinder piston rod 2072 is perpendicularly connected to the first of the telescopic legs 201 At one end, the second end of the vertical cylinder piston rod 2072 is inserted into the vertical cylinder cylinder 2071, and the vertical cylinder cylinder 2071 is connected to the vertical cylinder leg plate 2073.
- Such switching has no effect on the implementation of the function, and any combination of changes can be included in the protection of the present invention.
- FIG. 4 is a pin joint of the supporting device according to the first embodiment of the present invention.
- the swing hydraulic cylinder 204 is coupled to the telescopic leg 201 via a pin 205.
- the swing hydraulic cylinder 204 is disposed at a joint of the rotary leg 203 and the telescopic leg 201, and a pin 205 - and rotatably connects the rotary leg 203 and the swing hydraulic cylinder 204 to the telescopic leg 201.
- the oscillating hydraulic cylinder may be replaced by a rotating mechanism such as a rod cylinder, a rack cylinder, a rack and pinion, a manual mechanism, etc., as long as the rotating leg is retracted from the telescopic leg chute.
- a rotating mechanism such as a rod cylinder, a rack cylinder, a rack and pinion, a manual mechanism, etc.
- the manual mechanism first manually rotate the rotating leg into position, and then lock the rotating leg with a pin or a connecting rod.
- the vertical cylinder piston rod 2072, the rotary leg cylinder piston rod 2062, and the horizontal cylinder piston rod 2082 are all in a contracted state and contracted into the cylinder barrel.
- the horizontal cylinder piston rod 2082 protrudes from the horizontal cylinder cylinder 2081, and pushes the telescopic leg 201 connected to the horizontal cylinder piston rod 2082 until the horizontal cylinder piston rod 2082 extends and stops.
- the cylinder piston rod 2072 extends from the vertical cylinder cylinder 2071 to push the vertical cylinder leg plate 2073 until the vertical cylinder leg plate 2073 contacts the ground, and the swing hydraulic cylinder 204 controls the rotating leg 203 to be unscrewed from the chute 202.
- the rotary leg cylinder piston rod 2062 extends from the rotary leg cylinder barrel 2061 to push the rotary leg cylinder leg plate 2063 until the rotating leg cylinder leg plate 2063 contacts the ground.
- the above process can be performed synchronously in actual operation, for example: the vertical cylinder piston rod 2072 protrudes from the vertical cylinder cylinder 2071 and the swing hydraulic cylinder 204 controls the rotary leg 203 to be rotated out from the chute 202, or can be performed according to The order of the shifts is required, and a certain process may not be performed as needed, for example: the swing hydraulic cylinder 204 is not executed to control the rotation of the rotary leg 203 from the chute 202.
- FIG. 5 is a plan view of the construction machine of the second embodiment of the present invention in a non-operating state of the supporting device.
- the construction machine vehicle 30 of the second embodiment includes a frame 301, a first support device 302, a second support device 303, a third support device 304, and a fourth support device 305.
- the first supporting device 302 and the third supporting device 304 are disposed in parallel and opposite to each other at a first end of the frame 301, and the second supporting device 303 and the fourth supporting device 305 are parallel and mutually The opposite direction is provided at the second end of the frame 301.
- FIG. 5 is a plan view showing the construction machine of the second embodiment of the present invention in a first working state of the supporting device.
- the horizontal cylinder piston rods of the four supporting devices are all in the extension.
- the telescopic legs are pushed out from the frame 301, and then the vertical cylinder piston rods on the four telescopic legs are also extended together, pushing the leg plates to contact the ground, supporting the frame 301, and the telescopic legs.
- FIG. 7 is a top plan view of the construction machine of the second embodiment of the present invention in a second working state of the supporting device, as shown in FIG. 7, after the first working state shown in FIG. 6 is reached, the first supporting device 302 The rotating leg is unscrewed from the chute, and the rotating leg cylinder piston rod protrudes from the rotating leg cylinder barrel, pushing the rotating leg cylinder leg plate to contact the ground, supporting the frame 301, in the second working state As the number of supporting legs reaches five, the leg span is further increased compared to the first working state.
- Figure 8 is a plan view showing the construction machine of the second embodiment of the present invention in a third working state of the supporting device.
- FIG 8 is a plan view showing the construction machine of the second embodiment of the present invention in a fourth working state of the supporting device.
- FIG. 10 is a plan view showing the construction machine of the second embodiment of the present invention in a fifth working state of the supporting device, as shown in Figure 10, in achieving the fourth work shown in Figure 9.
- the rotating leg of the second supporting device 303 is unscrewed from the chute, and the rotating leg cylinder piston rod protrudes from the rotating leg cylinder barrel, pushing the rotating leg cylinder leg plate to contact the ground, supporting the starting vehicle
- the frame 301 in the fifth working state, further increases the leg span to the maximum state due to the number of supporting legs reaching eight compared to the fourth working state.
- the manner in which the supporting device is connected to the frame is various, and may not be parallel to each other, and the number is not limited to four, but the combination of the connection mode and the number may be determined by those skilled in the art.
- the invention and the prior art are readily implemented and should therefore be included within the scope of the invention.
- the present invention increases the span of the leg by utilizing the joint support function of the telescopic leg and the rotating leg, thereby improving the anti-rollover capability and the operation stability of the construction machinery vehicle. Adaptability to special conditions.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Jib Cranes (AREA)
Abstract
A supporting device and an engineering machinery vehicle. The supporting device (20) comprises: a telescopic outrigger (201), a vertical cylinder, a horizontal cylinder, a rotating outrigger (203), a rotating outrigger cylinder, and a swing drive unit (204). The vertical cylinder comprises a vertical piston rod (2072) and a vertical cylinder barrel (2071) fitted with each other; the vertical cylinder is vertically connected to a first end of the telescopic outrigger (201). The horizontal cylinder comprises a horizontal piston rod (2082) and a horizontal cylinder barrel (2081) fitted with each other; a first end of the horizontal cylinder is horizontally connected to the telescopic outrigger (201); a first end of the rotating outrigger (203) is rotatably connected to the telescopic outrigger (201). The rotating outrigger cylinder comprises a rotating outrigger cylinder piston rod (2062) and a rotating outrigger cylinder barrel (2061) fitted with each other; the rotating outrigger cylinder is vertically connected at a second end of the rotating outrigger (203), and the swing drive unit (204) is vertically connected at the rotating outrigger (203) and is used for controlling the rotation of the rotating outrigger (203). By means of the mode, the engineering machinery vehicle utilizes the combined action of the telescopic outrigger (201) and the rotating outrigger (203) to increase an outrigger span, so the anti-tipping capability and the operation stability of the engineering machinery vehicle are improved.
Description
一种支撑装置及工程机械车辆 Support device and construction machinery vehicle
技术领域 Technical field
本发明涉及工程机械领域， 特别是涉及一种支撑装置及工程机械车辆。 背景技术 The invention relates to the field of engineering machinery, in particular to a supporting device and a construction machinery vehicle. Background technique
现今许多大型工程都需要工程机械车辆来参与完成， 但很多工程的施 工地点环境非常恶劣， 工程机械车辆需要在特殊工况下保证稳定性的同时 进行作业。 Many large-scale projects today require construction machinery vehicles to participate in the completion, but many construction sites are in a very harsh environment, and construction machinery vehicles need to be operated under special conditions to ensure stability.
请参阅图 1，图 1是现有技术工程机械车辆的结构示意图。如图 1所示， 工程机械车辆 10包括车架 101和支撑装置 102。 现有技术的工程机械车辆 的四个支撑装置平行布置， 通过水平伸缩油缸控制水平伸缩支腿从车架伸 出， 通过垂直油缸控制支脚伸出， 从而升起车架， 进行作业， 但支撑装置 仅包括伸缩支腿， 支腿跨距短， 在特殊作业形式和环境下吊重时工程机械 车辆容易发生倾斜和侧翻， 从而产生事故。 Please refer to FIG. 1. FIG. 1 is a schematic structural view of a prior art construction machinery vehicle. As shown in FIG. 1, the construction machine vehicle 10 includes a frame 101 and a support device 102. The four supporting devices of the prior art construction machinery vehicle are arranged in parallel, and the horizontal telescopic cylinders are controlled to extend from the frame through the horizontal telescopic cylinders, and the legs are extended by the vertical cylinder control legs, thereby raising the frame and performing work, but the supporting device It only includes telescopic legs, and the legs are short. When hoisting under special working conditions and environments, the construction machinery vehicles are prone to tilting and rollover, resulting in accidents.
因此， 需要一种支撑装置及工程机械车辆， 以解决现有技术支撑装置 支腿跨距短的问题。 发明内容 Therefore, there is a need for a support device and a construction machine vehicle to solve the problem of short leg spans of prior art support devices. Summary of the invention
本发明主要解决的技术问题是提供一种支撑装置及工程机械车辆， 能 够解决现有技术支撑装置支腿跨距短的问题。 The technical problem to be solved by the present invention is to provide a supporting device and a construction machinery vehicle, which can solve the problem that the span of the leg of the prior art supporting device is short.
为解决上述技术问题， 本发明采用的一个技术方案是： 提供一种支撑 装置， 该支撑装置包括伸缩支腿、 垂直油缸、 水平油缸、 旋转支腿、 旋转 支腿油缸和摆动驱动单元。 垂直油缸包括相配合的垂直活塞杆和垂直缸筒， 垂直油缸垂直连接伸缩支腿的第一端， 水平油缸包括相配合的水平活塞杆
和水平缸筒， 水平油缸的第一端平行连接伸缩支腿， 旋转支腿的第一端可 旋转地连接在伸缩支腿上， 旋转支腿油缸包括相配合的旋转支腿油缸活塞 杆和旋转支腿油缸缸筒， 旋转支腿油缸垂直连接在旋转支腿的第二端， 摆 动驱动单元垂直连接在旋转支腿上， 用于控制旋转支腿的旋转。 In order to solve the above technical problems, a technical solution adopted by the present invention is to provide a supporting device including a telescopic leg, a vertical cylinder, a horizontal cylinder, a rotating leg, a rotating leg cylinder, and a swing driving unit. The vertical cylinder includes a matching vertical piston rod and a vertical cylinder, the vertical cylinder is vertically connected to the first end of the telescopic leg, and the horizontal cylinder includes a matching horizontal piston rod And a horizontal cylinder, the first end of the horizontal cylinder is connected in parallel with the telescopic leg, the first end of the rotating leg is rotatably connected to the telescopic leg, and the rotating leg cylinder comprises a matching rotating leg cylinder piston rod and rotating A leg cylinder cylinder, a rotating leg cylinder is vertically connected to the second end of the rotating leg, and the swing driving unit is vertically connected to the rotating leg for controlling the rotation of the rotating leg.
其中， 伸缩支腿上设置有一个滑槽， 滑槽用于容置处于回缩状态的旋 转支腿。 Wherein, the telescopic leg is provided with a sliding slot for accommodating the rotating leg in the retracted state.
其中， 摆动驱动单元为摆动液压缸， 旋转支腿的第一端通过销轴和摆 动液压缸连接在伸缩支腿上。 Wherein, the swing driving unit is a swing hydraulic cylinder, and the first end of the rotating leg is connected to the telescopic leg through a pin shaft and a swing hydraulic cylinder.
其中， 摆动驱动单元为杆状液压缸、 齿条油缸、 齿轮齿条或手动机构。 其中， 垂直油缸的第二端和旋转支腿油缸的第二端均通过支腿板接触 地面。 Wherein, the swing driving unit is a rod-shaped hydraulic cylinder, a rack cylinder, a rack and pinion or a manual mechanism. Wherein, the second end of the vertical cylinder and the second end of the rotary leg cylinder are in contact with the ground through the leg plates.
为解决上述技术问题， 本发明采用的另一个技术方案是： 提供一种包 括车架和上述任一种的支撑装置的工程机械车辆， 支撑装置与车架连接。 In order to solve the above technical problems, another technical solution adopted by the present invention is to provide a construction machine vehicle including a frame and a support device of any of the above, and the support device is coupled to the frame.
其中， 支撑装置的数量为四个， 四个支撑装置分布安装于车架的两端， 每一个支撑装置的旋转支腿相对车架朝外设置。 Wherein, the number of supporting devices is four, and four supporting devices are distributed and installed at two ends of the frame, and the rotating legs of each supporting device are disposed outward with respect to the frame.
本发明的有益效果是： 区别于现有技术的情况， 本发明通过利用伸缩 支腿和旋转支腿的共同起支撑作用来增加支腿跨距， 提高了工程机械车辆 的抗倾翻能力、 作业稳定性和特殊工况的适应性。 附图说明 The beneficial effects of the present invention are: Different from the prior art, the present invention increases the span of the leg by utilizing the joint support function of the telescopic leg and the rotating leg, thereby improving the anti-rollover capability and operation of the construction machinery vehicle. Stability and adaptability to special conditions. DRAWINGS
为了更清楚地说明本发明实施例中的技术方案， 下面将对实施例描述 中所需要使用的附图作简单地介绍， 显而易见地， 下面描述中的附图仅仅 是本发明的一些实施例， 对于本领域普通技术人员来讲， 在不付出创造性 劳动的前提下， 还可以根据这些附图获得其它的附图， 其中： In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described. It is obvious that the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained according to these drawings without any creative work, wherein:
图 1是现有技术工程机械车辆的结构示意图； 1 is a schematic structural view of a prior art construction machine vehicle;
图 2是本发明第一实施例的支撑装置的主视图；
图 3是本发明第一实施例的支撑装置的俯视图； Figure 2 is a front elevational view of the support device of the first embodiment of the present invention; Figure 3 is a plan view of a support device according to a first embodiment of the present invention;
图 4是本发明第一实施例的支撑装置的销轴连接处的局部结构示意图； 图 5是本发明第二实施例的工程机械车辆在支撑装置为非工作状态下 的俯视图； 4 is a partial structural view showing a pin joint of the support device according to the first embodiment of the present invention; FIG. 5 is a plan view showing the construction machine of the second embodiment of the present invention in a non-operating state of the support device;
图 6是本发明第二实施例的工程机械车辆在支撑装置为第一工作状态 下的俯视图； Figure 6 is a plan view showing the construction machine of the second embodiment of the present invention in a first working state of the supporting device;
图 7是本发明第二实施例的工程机械车辆在支撑装置为第二工作状态 下的俯视图； Figure 7 is a plan view showing the construction machine of the second embodiment of the present invention in a second working state of the supporting device;
图 8是本发明第二实施例的工程机械车辆在支撑装置为第三工作状态 下的俯视图； Figure 8 is a plan view showing the construction machine of the second embodiment of the present invention in a third working state of the supporting device;
图 9是本发明第二实施例的工程机械车辆在支撑装置为第四工作状态 下的俯视图； Figure 9 is a plan view showing the construction machine of the second embodiment of the present invention in a fourth working state of the supporting device;
图 10是本发明第二实施例的工程机械车辆在支撑装置为第五工作状态 下的俯视图。 具体实施方式 Figure 10 is a plan view showing the construction machine of the second embodiment of the present invention in a fifth working state of the supporting device. detailed description
下面将结合本发明实施例中的附图， 对本发明实施例中的技术方案进 行清楚、 完整地描述， 显然， 所描述的实施例仅是本发明的一部分实施例， 而不是全部的实施例。 基于本发明中的实施例， 本领域普通技术人员在没 有做出创造性劳动前提下所获得的所有其它实施例， 都属于本发明保护的 范围。 The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
请一并参阅图 2和图 3，图 2是本发明第一实施例的支撑装置的主视图， 图 3是本发明第一实施例的支撑装置的俯视图， 如图 2和图 3所示， 支撑 装置 20包括伸缩支腿 201、 滑槽 202、 旋转支腿 203、 摆动液压缸 204、 销 轴 205、 旋转支腿油缸缸筒 2061、 旋转支腿油缸活塞杆 2062、 旋转支腿油 缸支腿板 2063、 垂直油缸缸筒 2071、 垂直油缸活塞杆 2072、 垂直油缸支腿
板 2073、 水平油缸缸筒 2081和水平油缸活塞杆 2082。 滑槽 202设置于伸 缩支腿 201上用于容置处于回缩状态的旋转支腿 203，旋转支腿 203的第一 端通过销轴 205和摆动液压缸 204可旋转地连接在伸缩支腿 201上， 水平 油缸缸筒 2081和水平油缸活塞杆 2082相配合构成水平油缸， 水平油缸活 塞杆 2082的第一端水平连接伸缩支腿 201的第一端，水平油缸活塞杆 2082 的第二端***水平油缸缸筒 2081中。 在本实施例中， 水平连接是指水平油 缸活塞杆 2082与伸缩支腿 201平行， 在其他实施例中， 水平油缸活塞杆与 伸缩支腿可以不完全平行。 旋转支腿油缸缸筒 2061和旋转支腿油缸活塞杆 2062相配合构成旋转支腿油缸，旋转支腿油缸缸筒 2061垂直连接旋转支腿 203的第二端， 旋转支腿油缸活塞杆 2062的第一端***旋转支腿油缸缸筒 2061 中， 旋转支腿油缸活塞杆 2062 的第二端连接旋转支腿油缸支腿板 2063， 垂直油缸缸筒 2071和垂直油缸活塞杆 2072相配合构成垂直油缸， 垂直油缸缸筒 2071垂直连接伸缩支腿 201的第一端，垂直油缸活塞杆 2072 的第一端***垂直油缸缸筒 2071 中， 垂直油缸活塞杆 2072的第二端连接 垂直油缸支腿板 2073。 2 and FIG. 3, FIG. 2 is a front view of the supporting device according to the first embodiment of the present invention, and FIG. 3 is a plan view of the supporting device according to the first embodiment of the present invention, as shown in FIG. 2 and FIG. The supporting device 20 includes a telescopic leg 201, a chute 202, a rotating leg 203, a swinging hydraulic cylinder 204, a pin 205, a rotating leg cylinder cylinder 2061, a rotating leg cylinder piston rod 2062, a rotating leg cylinder leg plate 2063, vertical cylinder cylinder 2071, vertical cylinder piston rod 2072, vertical cylinder leg A plate 2073, a horizontal cylinder cylinder 2081 and a horizontal cylinder piston rod 2082. The sliding slot 202 is disposed on the telescopic leg 201 for accommodating the rotating leg 203 in a retracted state. The first end of the rotating leg 203 is rotatably coupled to the telescopic leg 201 through the pin 205 and the swing hydraulic cylinder 204. The horizontal cylinder cylinder 2081 and the horizontal cylinder piston rod 2082 cooperate to form a horizontal cylinder. The first end of the horizontal cylinder piston rod 2082 is horizontally connected to the first end of the telescopic leg 201, and the second end of the horizontal cylinder piston rod 2082 is inserted horizontally. The cylinder is in the cylinder 2081. In the present embodiment, the horizontal connection means that the horizontal cylinder piston rod 2082 is parallel with the telescopic leg 201. In other embodiments, the horizontal cylinder piston rod and the telescopic leg may not be completely parallel. The rotating leg cylinder cylinder 2061 and the rotating leg cylinder piston rod 2062 cooperate to form a rotating leg cylinder, and the rotating leg cylinder cylinder 2061 is vertically connected to the second end of the rotating leg 203, and the rotating leg cylinder piston rod 2062 One end is inserted into the rotary leg cylinder cylinder 2061, and the second end of the rotary leg cylinder piston rod 2062 is connected to the rotary leg cylinder leg plate 2063, and the vertical cylinder cylinder 2071 and the vertical cylinder piston rod 2072 cooperate to form a vertical cylinder. The vertical cylinder cylinder 2071 is vertically connected to the first end of the telescopic leg 201, the first end of the vertical cylinder piston rod 2072 is inserted into the vertical cylinder cylinder 2071, and the second end of the vertical cylinder piston rod 2072 is connected to the vertical cylinder leg plate 2073.
在本实施例中， 水平油缸活塞杆 2082的第一端水平连接伸缩支腿 201 的第一端， 在其他实施例中， 水平油缸活塞杆 2082的第一端可以连接在伸 缩支腿上的任意位置， 只要能保证活塞杆从缸筒中伸出能对伸缩支腿产生 推动作用即可。 In the present embodiment, the first end of the horizontal cylinder piston rod 2082 is horizontally coupled to the first end of the telescopic leg 201. In other embodiments, the first end of the horizontal cylinder piston rod 2082 can be coupled to any of the telescopic legs. Position, as long as it can ensure that the piston rod protrudes from the cylinder tube can promote the telescopic legs.
在其他实施例中， 垂直油缸、 旋转支腿油缸和水平油缸中自身的缸筒 和活塞杆的连接关系可以互相交换， 例如： 垂直油缸活塞杆 2072的第一端 垂直连接伸缩支腿 201的第一端， 垂直油缸活塞杆 2072的第二端***垂直 油缸缸筒 2071中， 垂直油缸缸筒 2071连接垂直油缸支腿板 2073。 这类交 换对功能的实现没有影响， 任意的组合变换均可， 都应包含在本发明的保 护范围之内。 In other embodiments, the connection relationship between the cylinder and the piston rod of the vertical cylinder, the rotary leg cylinder and the horizontal cylinder can be exchanged with each other, for example: the first end of the vertical cylinder piston rod 2072 is perpendicularly connected to the first of the telescopic legs 201 At one end, the second end of the vertical cylinder piston rod 2072 is inserted into the vertical cylinder cylinder 2071, and the vertical cylinder cylinder 2071 is connected to the vertical cylinder leg plate 2073. Such switching has no effect on the implementation of the function, and any combination of changes can be included in the protection of the present invention.
请一并参阅图 2和图 4，图 4是本发明第一实施例的支撑装置的销轴连
接处的局部结构示意图。 如图 4所示， 摆动液压缸 204通过销轴 205连接 在伸缩支腿 201上。 如图 2所示， 摆动液压缸 204设置于旋转支腿 203与 伸缩支腿 201连接处， 销轴 205—并将旋转支腿 203和摆动液压缸 204可 转动地连接到伸缩支腿 201 上。 在其他实施例中， 摆动液压缸可以用杆状 油缸、 齿条油缸， 齿轮齿条、 手动机构等旋转机构替换， 只要能保证旋转 支腿从伸缩支腿滑槽中旋出。 以手动机构为例， 先手动将旋转支腿旋转到 位， 再用销轴或连杆等机构将旋转支腿锁定。 Please refer to FIG. 2 and FIG. 4 together. FIG. 4 is a pin joint of the supporting device according to the first embodiment of the present invention. A schematic diagram of the local structure of the joint. As shown in FIG. 4, the swing hydraulic cylinder 204 is coupled to the telescopic leg 201 via a pin 205. As shown in FIG. 2, the swing hydraulic cylinder 204 is disposed at a joint of the rotary leg 203 and the telescopic leg 201, and a pin 205 - and rotatably connects the rotary leg 203 and the swing hydraulic cylinder 204 to the telescopic leg 201. In other embodiments, the oscillating hydraulic cylinder may be replaced by a rotating mechanism such as a rod cylinder, a rack cylinder, a rack and pinion, a manual mechanism, etc., as long as the rotating leg is retracted from the telescopic leg chute. Taking the manual mechanism as an example, first manually rotate the rotating leg into position, and then lock the rotating leg with a pin or a connecting rod.
下面结合图 2、 图 3和图 4来说明支撑装置 20的工作原理。 The working principle of the supporting device 20 will be described below with reference to Figs. 2, 3 and 4.
支撑装置 20在非工作状态下时， 垂直油缸活塞杆 2072、旋转支腿油缸 活塞杆 2062以及水平油缸活塞杆 2082均处于收缩状态， 收缩于缸筒中。 当支撑装置 20在工作状态下时，水平油缸活塞杆 2082从水平油缸缸筒 2081 中伸出， 推动与水平油缸活塞杆 2082连接的伸缩支腿 201， 待水平油缸活 塞杆 2082伸出停止之后垂直油缸活塞杆 2072从垂直油缸缸筒 2071中伸出， 推动垂直油缸支腿板 2073， 直至垂直油缸支腿板 2073接触地面， 摆动液压 缸 204控制旋转支腿 203从滑槽 202中旋出， 待旋转到预定角度之后， 旋 转支腿油缸活塞杆 2062从旋转支腿油缸缸筒 2061 中伸出， 推动旋转支腿 油缸支腿板 2063， 直至旋转支腿油缸支腿板 2063接触地面。上述过程在实 际操作中可以同步进行， 例如： 垂直油缸活塞杆 2072从垂直油缸缸筒 2071 中伸出与摆动液压缸 204控制旋转支腿 203从滑槽 202中旋出可以同步进 行， 也可以根据需要调换顺序， 还可以根据需要不执行某一过程， 例如： 不执行摆动液压缸 204控制旋转支腿 203从滑槽 202中旋出的过程。 When the support device 20 is in the non-operating state, the vertical cylinder piston rod 2072, the rotary leg cylinder piston rod 2062, and the horizontal cylinder piston rod 2082 are all in a contracted state and contracted into the cylinder barrel. When the supporting device 20 is in the working state, the horizontal cylinder piston rod 2082 protrudes from the horizontal cylinder cylinder 2081, and pushes the telescopic leg 201 connected to the horizontal cylinder piston rod 2082 until the horizontal cylinder piston rod 2082 extends and stops. The cylinder piston rod 2072 extends from the vertical cylinder cylinder 2071 to push the vertical cylinder leg plate 2073 until the vertical cylinder leg plate 2073 contacts the ground, and the swing hydraulic cylinder 204 controls the rotating leg 203 to be unscrewed from the chute 202. After being rotated to a predetermined angle, the rotary leg cylinder piston rod 2062 extends from the rotary leg cylinder barrel 2061 to push the rotary leg cylinder leg plate 2063 until the rotating leg cylinder leg plate 2063 contacts the ground. The above process can be performed synchronously in actual operation, for example: the vertical cylinder piston rod 2072 protrudes from the vertical cylinder cylinder 2071 and the swing hydraulic cylinder 204 controls the rotary leg 203 to be rotated out from the chute 202, or can be performed according to The order of the shifts is required, and a certain process may not be performed as needed, for example: the swing hydraulic cylinder 204 is not executed to control the rotation of the rotary leg 203 from the chute 202.
请参阅图 5，图 5是本发明第二实施例的工程机械车辆在支撑装置为非 工作状态下的俯视图。 如图 5所示， 第二实施例的工程机械车辆 30包括车 架 301、 第一支撑装置 302、 第二支撑装置 303、 第三支撑装置 304和第四 支撑装置 305。第一支撑装置 302和第三支撑装置 304平行且互相反向的设 置于车架 301的第一端， 第二支撑装置 303和第四支撑装置 305平行且互
相反向的设置于车架 301的第二端。 Referring to FIG. 5, FIG. 5 is a plan view of the construction machine of the second embodiment of the present invention in a non-operating state of the supporting device. As shown in FIG. 5, the construction machine vehicle 30 of the second embodiment includes a frame 301, a first support device 302, a second support device 303, a third support device 304, and a fourth support device 305. The first supporting device 302 and the third supporting device 304 are disposed in parallel and opposite to each other at a first end of the frame 301, and the second supporting device 303 and the fourth supporting device 305 are parallel and mutually The opposite direction is provided at the second end of the frame 301.
下面结合图 5至图 10来说明工程机械车辆 30的工作原理。 The working principle of the construction machine vehicle 30 will be described below with reference to Figs. 5 to 10 .
如图 5所示， 非工作状态时， 水平油缸、 垂直油缸和旋转支腿油缸均 处于收缩状态， 伸缩支腿收缩在车架的端部， 旋转支腿也收容在滑槽中。 图 6是本发明第二实施例的工程机械车辆在支撑装置为第一工作状态下的 俯视图， 如图 6所示， 在第一工作状态时， 四个支撑装置的水平油缸活塞 杆均处于伸出状态， 推动伸缩支腿从车架 301 中伸出， 然后四个伸缩支腿 上的垂直油缸活塞杆也一并伸出， 推动支腿板接触地面， 支撑起车架 301， 与伸缩支腿未伸出时相比增大了支腿跨距。 图 7是本发明第二实施例的工 程机械车辆在支撑装置为第二工作状态下的俯视图， 如图 7所示， 在达成 如图 6所示的第一工作状态后， 第一支撑装置 302的旋转支腿从滑槽中旋 出， 旋转支腿油缸活塞杆从旋转支腿油缸缸筒中伸出， 推动旋转支腿油缸 支腿板接触地面， 支撑起车架 301， 在第二工作状态下， 由于起支撑作用的 支腿数量达到五个相比第一工作状态进一步加大了支腿跨距。 图 8是本发 明第二实施例的工程机械车辆在支撑装置为第三工作状态下的俯视图， 如 图 8所示， 在达成如图 7所示的第二工作状态后， 第三支撑装置 304的旋 转支腿从滑槽中旋出， 旋转支腿油缸活塞杆从旋转支腿油缸缸筒中伸出， 推动旋转支腿油缸支腿板接触地面， 支撑起车架 301， 在第三工作状态下， 由于起支撑作用的支腿数量达到六个相比第二工作状态进一步加大了支腿 跨距。 图 9是本发明第二实施例的工程机械车辆在支撑装置为第四工作状 态下的俯视图， 如图 9所示， 在达成如图 8所示的第三工作状态后， 第四 支撑装置 305 的旋转支腿从滑槽中旋出， 旋转支腿油缸活塞杆从旋转支腿 油缸缸筒中伸出， 推动旋转支腿油缸支腿板接触地面， 支撑起车架 301， 在 第四工作状态下， 由于起支撑作用的支腿数量达到七个相比第四工作状态 进一步加大了支腿跨距。 图 10是本发明第二实施例的工程机械车辆在支撑 装置为第五工作状态下的俯视图如图 10所示， 在达成如图 9所示的第四工
作状态后， 第二支撑装置 303 的旋转支腿从滑槽中旋出， 旋转支腿油缸活 塞杆从旋转支腿油缸缸筒中伸出， 推动旋转支腿油缸支腿板接触地面， 支 撑起车架 301， 在第五工作状态下， 由于起支撑作用的支腿数量达到八个相 比第四工作状态进一步加大了支腿跨距达到最大状态。 As shown in Fig. 5, in the non-operating state, the horizontal cylinder, the vertical cylinder and the rotary leg cylinder are all in a contracted state, the telescopic legs are contracted at the end of the frame, and the rotating legs are also accommodated in the chute. Figure 6 is a plan view showing the construction machine of the second embodiment of the present invention in a first working state of the supporting device. As shown in Figure 6, in the first working state, the horizontal cylinder piston rods of the four supporting devices are all in the extension. In the out state, the telescopic legs are pushed out from the frame 301, and then the vertical cylinder piston rods on the four telescopic legs are also extended together, pushing the leg plates to contact the ground, supporting the frame 301, and the telescopic legs. The leg span is increased compared to when it is not extended. 7 is a top plan view of the construction machine of the second embodiment of the present invention in a second working state of the supporting device, as shown in FIG. 7, after the first working state shown in FIG. 6 is reached, the first supporting device 302 The rotating leg is unscrewed from the chute, and the rotating leg cylinder piston rod protrudes from the rotating leg cylinder barrel, pushing the rotating leg cylinder leg plate to contact the ground, supporting the frame 301, in the second working state As the number of supporting legs reaches five, the leg span is further increased compared to the first working state. Figure 8 is a plan view showing the construction machine of the second embodiment of the present invention in a third working state of the supporting device. As shown in Figure 8, after the second working state shown in Figure 7 is achieved, the third supporting device 304 The rotating leg is unscrewed from the chute, and the rotating leg cylinder piston rod protrudes from the rotating leg cylinder barrel, pushing the rotating leg cylinder leg plate to contact the ground, supporting the frame 301, in the third working state As the number of supporting legs reaches six, the leg span is further increased compared to the second working state. Figure 9 is a plan view showing the construction machine of the second embodiment of the present invention in a fourth working state of the supporting device. As shown in Figure 9, after the third working state as shown in Figure 8 is achieved, the fourth supporting device 305 The rotating leg is unscrewed from the chute, and the rotating leg cylinder piston rod protrudes from the rotating leg cylinder barrel, pushing the rotating leg cylinder leg plate to contact the ground, supporting the frame 301, in the fourth working state As the number of supporting legs reaches seven, the leg span is further increased compared to the fourth working state. Figure 10 is a plan view showing the construction machine of the second embodiment of the present invention in a fifth working state of the supporting device, as shown in Figure 10, in achieving the fourth work shown in Figure 9. After the state, the rotating leg of the second supporting device 303 is unscrewed from the chute, and the rotating leg cylinder piston rod protrudes from the rotating leg cylinder barrel, pushing the rotating leg cylinder leg plate to contact the ground, supporting the starting vehicle The frame 301, in the fifth working state, further increases the leg span to the maximum state due to the number of supporting legs reaching eight compared to the fourth working state.
在实际操作中， 具体由哪个支撑装置伸出旋转支腿以及伸出多少个旋 转支腿， 伸出的旋转支腿角度是多少都可以根据实际需要来自由选择和组 合不仅仅只包括上述的方式， 例如： 同时伸出第一支撑装置和第二支撑装 置的旋转支腿， 并且两个旋转支腿均与支撑装置呈直角； 同时伸出第一支 撑装置、 第二支撑装置和第三支撑装置的旋转支腿， 且三个旋转支腿均与 支撑装置呈直角。 无论何种组合变换均可以实现。 In actual operation, which support device protrudes from the rotating leg and how many rotating legs are extended, and the angle of the extended rotating leg can be selected and combined according to actual needs, not only including the above manner. , for example: simultaneously extending the rotating legs of the first supporting device and the second supporting device, and both rotating legs are at right angles to the supporting device; while extending the first supporting device, the second supporting device and the third supporting device The rotating legs, and the three rotating legs are at right angles to the support. No matter what combination transformation can be achieved.
在其他实施例中， 支撑装置连接车架的方式是多种多样的， 可以互相 之间不平行， 数量也不仅限于四个， 但无论连接方式和数量怎么组合变换 均是本领域技术人员可以根据本发明和现有技术轻易实现的， 所以应同样 包含在本发明的保护范围之内。 In other embodiments, the manner in which the supporting device is connected to the frame is various, and may not be parallel to each other, and the number is not limited to four, but the combination of the connection mode and the number may be determined by those skilled in the art. The invention and the prior art are readily implemented and should therefore be included within the scope of the invention.
综上所述， 区别于现有技术的情况， 本发明通过利用伸缩支腿和旋转 支腿的共同起支撑作用来增加支腿跨距， 提高了工程机械车辆的抗倾翻能 力、 作业稳定性和特殊工况的适应性。 In summary, different from the prior art, the present invention increases the span of the leg by utilizing the joint support function of the telescopic leg and the rotating leg, thereby improving the anti-rollover capability and the operation stability of the construction machinery vehicle. Adaptability to special conditions.
以上所述仅为本发明的实施例， 并非因此限制本发明的专利范围， 凡 是利用本发明说明书及附图内容所作的等效结构或等效流程变换， 或直接 或间接运用在其他相关的技术领域， 均同理包括在本发明的专利保护范围 内。
The above is only the embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the specification and the drawings of the present invention may be directly or indirectly applied to other related technologies. The scope of the invention is included in the scope of patent protection of the present invention.
Claims
1. 一种支撑装置， 其特征在于， 所述支撑装置包括： A support device, wherein the support device comprises:
伸缩支腿； Telescopic legs;
垂直油缸， 所述垂直油缸包括相配合的垂直活塞杆和垂直缸筒， 所述 垂直油缸垂直连接所述伸缩支腿的第一端； a vertical cylinder, the vertical cylinder includes a matching vertical piston rod and a vertical cylinder, the vertical cylinder vertically connecting the first end of the telescopic leg;
水平油缸， 所述水平油缸包括相配合的水平活塞杆和水平缸筒， 所述 水平油缸的第一端平行连接所述伸缩支腿； a horizontal cylinder, the horizontal cylinder includes a matching horizontal piston rod and a horizontal cylinder, and the first end of the horizontal cylinder is connected in parallel to the telescopic leg;
旋转支腿， 所述旋转支腿的第一端可旋转地连接在所述伸缩支腿上； 旋转支腿油缸， 所述旋转支腿油缸包括相配合的旋转支腿油缸活塞杆 和旋转支腿油缸缸筒， 所述旋转支腿油缸垂直连接在所述旋转支腿的第二 a rotating leg, a first end of the rotating leg rotatably coupled to the telescopic leg; a rotating leg cylinder, the rotating leg cylinder including a cooperating rotating leg cylinder piston rod and a rotating leg a cylinder cylinder, the rotary leg cylinder is vertically connected to the second of the rotating leg
¾ ; 3⁄4 ;
摆动驱动单元， 所述摆动驱动单元垂直连接在旋转支腿上， 用于控制 所述旋转支腿的旋转。 The oscillating drive unit is vertically connected to the rotating leg for controlling the rotation of the rotating leg.
2. 根据权利要求 1所述的支撑装置， 其特征在于， 所述伸缩支腿上设 置有一个滑槽， 所述滑槽用于容置处于回缩状态的所述旋转支腿。 2. The support device according to claim 1, wherein the telescopic leg is provided with a sliding slot for accommodating the rotating leg in a retracted state.
3. 根据权利要求 1所述的支撑装置， 其特征在于， 所述摆动驱动单元 为摆动液压缸， 所述旋转支腿的第一端通过销轴和所述摆动液压缸连接在 所述伸缩支腿上。 3. The support device according to claim 1, wherein the swing drive unit is a swing hydraulic cylinder, and a first end of the rotary leg is coupled to the telescopic branch through a pin shaft and the swing hydraulic cylinder On the leg.
4. 根据权利要求 1所述的支撑装置， 其特征在于， 所述摆动驱动单元 为杆状液压缸、 齿条油缸、 齿轮齿条或手动机构。 4. The support device according to claim 1, wherein the swing drive unit is a rod-shaped hydraulic cylinder, a rack cylinder, a rack and pinion or a manual mechanism.
5. 根据权利要求 1-4 中任意一项所述的支撑装置， 其特征在于， 所述 垂直油缸的第二端和所述旋转支腿油缸的第二端均通过支腿板接触地面。 The support device according to any one of claims 1 to 4, wherein the second end of the vertical cylinder and the second end of the rotary leg cylinder are in contact with the ground through the leg plates.
6. 一种工程机械车辆， 包括车架和支撑装置， 所述支撑装置与所述车 架连接，其特征在于，所述支撑装置为权利要求 1-5中任意一项所述的支撑 装置。 A construction machine vehicle comprising a frame and a support device, the support device being coupled to the frame, wherein the support device is the support device according to any one of claims 1-5.
7. 根据权利要求 6所述的工程机械车辆， 其特征在于， 所述支撑装置 的数量为四个， 所述四个支撑装置分布安装于所述车架的两端， 每一个所 述支撑装置的所述旋转支腿相对所述车架朝外布置。 The construction machine according to claim 6, wherein the number of the supporting devices is four, and the four supporting devices are distributedly installed at two ends of the frame, and each of the supporting devices The rotating leg is disposed outwardly with respect to the frame.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210024571.XA CN102529908B (en) | 2012-02-03 | 2012-02-03 | Support device and engineering machinery vehicle |
| CN201210024571.X | 2012-02-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2013113225A1 true WO2013113225A1 (en) | 2013-08-08 |
Family
ID=46338306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2012/082271 WO2013113225A1 (en) | 2012-02-03 | 2012-09-28 | Supporting device and engineering machinery vehicle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102529908B (en) |
| WO (1) | WO2013113225A1 (en) |
Cited By (1)
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| DE102014006273A1 (en) * | 2014-05-02 | 2015-11-05 | Schwing Gmbh | support |
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| CN102529908B (en) * | 2012-02-03 | 2014-05-14 | 中联重科股份有限公司 | Support device and engineering machinery vehicle |
| JP6358522B1 (en) * | 2016-09-16 | 2018-07-18 | 株式会社タダノ | Outrigger device |
| CN109052199B (en) * | 2018-09-30 | 2024-01-19 | 三一汽车制造有限公司 | Leg assembly and mechanical equipment |
| CN109501780A (en) * | 2018-12-28 | 2019-03-22 | 徐工集团工程机械有限公司 | Leg structure and engineering truck |
| CN110271978A (en) * | 2019-05-31 | 2019-09-24 | 中联重科股份有限公司 | Support device, engineering machine, control method and control system |
| CN110131245A (en) * | 2019-06-20 | 2019-08-16 | 徐州徐工施维英机械有限公司 | Engineering machinery |
| CN113734108A (en) * | 2021-09-03 | 2021-12-03 | 江苏本松机电科技有限公司 | Engineering machinery vehicle and ECU wire harness upgrading system thereof |
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Also Published As
| Publication number | Publication date |
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| CN102529908A (en) | 2012-07-04 |
| CN102529908B (en) | 2014-05-14 |
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