WO2022156184A1 - 高空作业车 - Google Patents

高空作业车 Download PDF

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Publication number
WO2022156184A1
WO2022156184A1 PCT/CN2021/110097 CN2021110097W WO2022156184A1 WO 2022156184 A1 WO2022156184 A1 WO 2022156184A1 CN 2021110097 W CN2021110097 W CN 2021110097W WO 2022156184 A1 WO2022156184 A1 WO 2022156184A1
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WO
WIPO (PCT)
Prior art keywords
leg
outrigger
aerial work
vehicle body
work vehicle
Prior art date
Application number
PCT/CN2021/110097
Other languages
English (en)
French (fr)
Inventor
马洪锋
赵健
李雪玲
Original Assignee
江苏徐工工程机械研究院有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 江苏徐工工程机械研究院有限公司 filed Critical 江苏徐工工程机械研究院有限公司
Priority to EP21920565.5A priority Critical patent/EP4095084A4/en
Publication of WO2022156184A1 publication Critical patent/WO2022156184A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
    • B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
    • B66F11/044—Working platforms suspended from booms
    • B66F11/046—Working platforms suspended from booms of the telescoping type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
    • B66F17/006—Safety devices, e.g. for limiting or indicating lifting force for working platforms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/07559—Stabilizing means

Definitions

  • the present disclosure relates to the technical field of construction machinery, and in particular, to an aerial work vehicle.
  • Aerial work vehicle (referred to as high-altitude vehicle) is a special engineering vehicle used to transport staff and work equipment to a designated height for operation.
  • the outriggers of the aerial work vehicle are the key components for leveling and ensuring the stability of the whole vehicle.
  • the four outriggers of the aerial work vehicle all adopt telescopic outriggers with two arms, and the overall weight of the outriggers is relatively large, and the problems of partial collapse and instability of the arm body are prone to occur; It is a fixed outrigger and has poor adaptability to working conditions.
  • the embodiments of the present disclosure provide an aerial work vehicle, which can effectively reduce the weight of the outriggers.
  • an aerial work vehicle comprising:
  • the first leg and the second leg are respectively rotatably connected with the vehicle body;
  • the driving device is movably installed on the vehicle body, the driving device is connected between the first outrigger and the second outrigger, and is used for driving the first outrigger and the second outrigger to be deployed to both sides relative to the center line of the vehicle body Or retract to the middle.
  • the aerial work vehicle further includes a support rod mounted on the vehicle body
  • the driving device includes a drive body
  • the drive body is provided with a mounting hole
  • the drive body is slidably mounted on the support rod through the mounting hole.
  • the aerial work vehicle further includes a bearing disposed between the mounting hole of the drive body and the support rod.
  • the driving device includes a cylinder, a first piston rod and a second piston rod disposed in the cylinder and extending from two ends of the cylinder, respectively, the first piston rod and the first leg are rotatable connected, the second piston rod is rotatably connected with the second leg.
  • the aerial work vehicle further includes a first connecting shaft, a first lug plate and a second lug plate disposed on the side of the first leg, the first lug plate is provided with a first connection hole, and the second lug plate is provided with a first connection hole.
  • the first piston rod is provided with a third connection hole, and the first connection shaft passes through the first connection hole, the third connection hole and the second connection hole to connect the first piston rod and the first leg.
  • the aerial work vehicle further includes a second connecting shaft, a third lug plate and a fourth lug plate disposed on the side of the second leg, the third lug plate is provided with a third connection hole, and the fourth lug plate is provided with a third connection hole.
  • the second piston rod is provided with a fifth connection hole, and the second connection shaft passes through the third connection hole, the fifth connection hole and the fourth connection hole to connect the second piston rod and the second leg.
  • the driving device is configured to drive the first outrigger and the second outrigger to extend to two sides by a preset angle relative to the centerline of the vehicle body, and the preset angle is 0-90°.
  • the drive device is configured to retract the first leg and the second leg to a position parallel to the centerline of the vehicle body.
  • the first leg includes a first end proximate the body and a second end remote from the body, the first end having a larger cross-sectional area than the second end.
  • the cross-sectional area of the first leg gradually decreases from the first end to the second end.
  • the aerial work vehicle further includes a third outrigger and a fourth outrigger, the first outrigger and the second outrigger are both disposed on the rear side of the vehicle body, and the third outrigger and the fourth outrigger are both disposed On the front side of the vehicle body, the third outrigger and the fourth outrigger both include telescopic outrigger structures.
  • the aerial work vehicle further includes a tool box, a disembarkation control box and a cab, and the tool box and the disembarkation control box are both disposed on the side of the first leg and the second leg close to the cab.
  • the first outrigger and the second outrigger swing relative to the vehicle body through the driving device, so that the first outrigger and the second outrigger can be extended to the two sides of the vehicle body or to the side of the vehicle body.
  • this swinging structure does not require two telescopic arms, so it can greatly reduce the weight of the outrigger and reduce the problem of the outrigger being crushed and unstable; and the swinging outrigger can be adjusted according to the work. It is necessary to adjust the size of the deployment angle to better adapt to the needs of the working conditions, improve the adaptability of the outriggers, and the safety is also better.
  • FIG. 1 is a schematic structural diagram of an embodiment of the disclosed aerial work vehicle.
  • FIG. 2 is a top view of the first outrigger and the second outrigger in a retracted state according to an embodiment of the disclosed aerial work vehicle.
  • FIG. 3 is a top view of the first outrigger and the second outrigger in the unfolded state in an embodiment of the aerial work vehicle of the present invention.
  • FIG. 4 is a front view of the first leg in an embodiment of the aerial work vehicle of the present invention.
  • FIG. 5 is a top view of the first leg in an embodiment of the aerial work vehicle of the present invention.
  • FIG. 6 is a top view of a driving device in an embodiment of the aerial work vehicle of the present invention.
  • FIG. 7 is a side view of a driving device in an embodiment of the aerial work vehicle of the present invention.
  • FIG. 8 is a schematic structural diagram of a third leg in an embodiment of the aerial work vehicle of the present invention.
  • the aerial work vehicle includes a vehicle body 10 , a first outrigger 20 , a second outrigger 30 and a driving device 40 , the first The leg 20 and the second leg 30 are respectively rotatably connected with the vehicle body 10, the driving device 40 is movably mounted on the vehicle body 10, and the driving device 40 is connected between the first supporting leg 20 and the second supporting leg 30, It is used to drive the first outrigger 20 and the second outrigger 30 to expand to the two sides or retract to the middle relative to the center line of the vehicle body 10 .
  • the first outrigger 20 and the second outrigger 30 are swung relative to the vehicle body 10 by the driving device 40, so that the first outrigger 20 and the second outrigger 30 can be extended to the two sides of the vehicle body 10 or
  • this swinging structure does not require two telescopic arms, so it can greatly reduce the weight of the outrigger and reduce the problem of the outrigger being crushed and unstable; and the swinging outrigger can be adjusted according to The working conditions need to adjust the size of the deployment angle to better adapt to the needs of the working conditions, improve the adaptability of the outriggers, and have better safety.
  • the driving device drives the first supporting leg 20 and the second supporting leg 30 to move at the same time, that is, the first supporting leg 20 and the second supporting leg 30 are driven by the same driving device, instead of being driven respectively by Driven by an independent drive device, the number of drive devices can be reduced, thereby saving costs, and at the same time helping to reduce the overall weight of the work vehicle.
  • first outrigger 20 and the second outrigger 30 are unfolded or retracted by the driving of the driving device, so there is no need to extend or retract in the horizontal direction, no horizontal oil cylinder, and no need to install a fixed outrigger box and relative to the fixed outrigger.
  • the movable outriggers extended from the outrigger box can greatly reduce the total weight of the outriggers, thereby reducing the overall weight of the aerial work vehicle. Without arranging the fixed outrigger box, some space can also be made available for the vehicle body 10 to optimize the arrangement of various components on the vehicle body 10 .
  • the first outrigger 20 and the second outrigger 30 are in a retracted state, and the first outrigger 20 and the second outrigger 30 are retracted to a direction parallel to the centerline of the vehicle body 10 , and the running direction of the vehicle body 10 is also parallel to each other, so that the first leg 20 and the second leg 30 will not interfere with other objects when the vehicle body 10 is running to avoid collision.
  • the first outrigger 20 and the second outrigger 30 are rotated in a direction away from each other, so that the first outrigger 20 and the second outrigger 30 are relative to the vehicle body 10
  • the center line of the aerial work vehicle is expanded to both sides, the first outrigger 20 and the second outrigger 30 are deployed to a preset angle according to the size of the working site of the aerial work vehicle, and the first outrigger 20 and the second outrigger 30 enter the deployed state (also the working state). ), the first leg 20 and the second leg 30 can stably support the vehicle body 10 .
  • the boarding of the aerial work vehicle can start to work.
  • the first leg 20 and the second leg 30 can be rotated toward each other, so that the first leg 20 and the second leg 30 can be rotated toward each other so that the first The outriggers 20 and the second outriggers 30 are retracted toward the middle relative to the centerline of the vehicle body 10 until they are retracted to the position where the first outriggers 20 and the second outriggers 30 are parallel to the centerline of the vehicle body 10 , that is, return to the initial state .
  • the driving device 40 is configured to drive the first outrigger 20 and the second outrigger 30 to expand to two sides by a preset angle relative to the centerline of the vehicle body 10 , and the preset angle is 0-90°.
  • the outrigger adopts a fixed outrigger structure, and the deployment angle of the outrigger is also fixed, which cannot be adaptively adjusted according to the actual working conditions.
  • the first leg 20 and the second leg 30 can be maintained at a preset deployment angle to meet the requirements of different working conditions.
  • the first leg 20 and the second leg 30 can be expanded to a suitable angle according to specific needs, and the value range of the expansion angle is 0-90°, such as 10°, 20°, 30°, 40°, 50°, 60°, 70° or 80°, etc.
  • the drive device 40 is configured to retract the first leg 20 and the second leg 30 to a position parallel to the centerline of the vehicle body 10 . This position can effectively ensure that the first outrigger 20 and the second outrigger 30 will not interfere or collide with other objects during the movement of the vehicle body 10, thereby improving the safety of the vehicle body.
  • the first leg 20 includes a first end close to the vehicle body 10 and a second end away from the vehicle body 10 , the first end having a larger cross-sectional area than the second end. That is, the first end is thicker and the second end is thinner.
  • This arrangement can increase the structural strength near the first end of the vehicle body 10 , increase the sectional moment of inertia of the first end of the first leg 20 , and greatly improve the bearing capacity of the first leg 20 .
  • the total weight of the first leg 20 can also be reduced as much as possible.
  • the cross-sectional area of the first leg 20 gradually decreases from the first end to the second end.
  • the first leg 20 includes a first leg 21 and a second leg 22 , the first leg 21 is rotatably connected to the vehicle body 10 , and the second leg 22 is connected to the first leg 22 .
  • the outrigger parts 21 are connected, and the second outrigger parts 22 are used for supporting on the ground.
  • the cross-sectional area of the first leg portion 21 gradually decreases from the first end to the second end.
  • the second outrigger portion 22 adopts a telescopic outrigger structure. After the first outrigger portion 20 is unfolded to a preset angle, the inner leg of the second outrigger portion 22 extends relative to the outer leg, and the foot at the end of the inner leg is supported on the ground. to achieve stable support.
  • the structure of the second leg 30 may be the same as that of the first leg 20 or may be different.
  • the second leg 30 includes a third leg and a fourth leg, the third leg is rotatably connected to the vehicle body 10, and the fourth leg is connected to the third support and used to support the ground superior.
  • the cross-sectional area of the third leg portion gradually decreases from the first end to the second end.
  • the fourth outrigger adopts a telescopic outrigger structure. After the second outrigger 30 is unfolded to a preset angle, the inner leg of the fourth outrigger protrudes relative to the outer leg, and the outrigger at the end of the inner leg is supported on the ground. Achieve solid support.
  • the aerial work vehicle further includes a support rod 50 mounted on the vehicle body 10
  • the drive device 40 includes a drive body
  • the drive body is provided with a mounting hole
  • the drive body is slidably mounted on the support rod 50 through the mounting hole .
  • the driving device 40 By arranging the support rod 50 , the driving device 40 can be supported, and the driving device 40 can be slid along the extending direction of the supporting rod 50 to prevent the driving device 40 from driving the first leg 20 and the second leg 30 to swing in the process Swing occurs.
  • the extension direction of the support rod 50 is parallel to the centerline direction of the vehicle body 10 , so that the driving device 40 can drive the first leg 20 and the second leg 30 to swing along the direction parallel to the centerline of the vehicle body 10 .
  • the direction of movement is to adapt to the displacement of the first outrigger 20 and the second outrigger 30 in the direction parallel to the center line of the vehicle body 10 during the swinging process, so as to prevent the driving device 40 from interacting with the first outrigger 20 and the second outrigger.
  • the joints of the legs 30 are subjected to tensile force to cause problems such as breakage.
  • the displacement of the driving device 40 in the direction perpendicular to the support rod 50 can also be prevented, so as to avoid the deflection of the driving device 40 , which is beneficial for the first leg 20 and the second leg 30
  • the swing can be kept in synchronization and improve the control accuracy of the deployment angle.
  • the aerial work vehicle further includes a bearing disposed between the mounting hole of the drive body and the support rod 50 .
  • a bearing disposed between the mounting hole of the drive body and the support rod 50.
  • the bearing can be a linear sliding bearing, so that the driving device 40 can smoothly slide relative to the support rod 50 .
  • the first end of the support rod 50 is installed on the vehicle body 10 through the first support seat 51
  • the second end of the support rod 50 is installed on the vehicle body 10 through the second support seat 52 .
  • the support rod 50 remains fixed relative to the vehicle body 10 .
  • a mounting block is provided on the lower side of the driving body of the driving device 40 , the mounting block is provided with a mounting hole, a bearing is mounted in the mounting hole, and the support rod 50 is inserted into the inner hole of the bearing.
  • the driving device 40 may adopt a structure such as an oil cylinder, an air cylinder, or a motor.
  • the driving device 40 includes a cylinder 41 (ie, a driving body) and a first piston rod 42 and a second piston rod 43 which are arranged in the cylinder 41 and protrude from both ends of the cylinder 41, respectively.
  • a piston rod 42 is rotatably connected to the first leg 20
  • a second piston rod 43 is rotatably connected to the second leg 30 .
  • the inner space of the cylinder 41 is divided into a first rod cavity 44 , a second rod cavity 45 and a rodless cavity 46 by the first piston rod 42 and the first piston rod 42 , and the rodless cavity 46 is located in the first rod cavity 44 and the second rod cavity 45 .
  • the aerial work vehicle further includes a first connection shaft, a first ear plate 23 and a second ear plate 24 arranged on the side of the first leg 20 , the first ear plate 23 is provided with a first connection hole, and the first ear plate 23 is provided with a first connection hole.
  • the second lug plate 24 is provided with a second connection hole, the first piston rod 42 is provided with a third connection hole, and the first connection shaft passes through the first connection hole, the third connection hole and the second connection hole to connect the first piston rod 42 and first leg 20.
  • the reliability of the connection between the first piston rod 42 and the first leg 20 can be improved.
  • the aerial work vehicle further includes a second connecting shaft, a third lug plate and a fourth lug plate disposed on the side of the second leg 30, the third lug plate is provided with a third connecting hole, and the fourth lug plate A fourth connection hole is provided, the second piston rod 43 is provided with a fifth connection hole, and the second connection shaft passes through the third connection hole, the fifth connection hole and the fourth connection hole to connect the second piston rod 43 and the second connection hole.
  • Outriggers 30 are provided.
  • the reliability of the connection between the second piston rod 43 and the second leg 30 can be improved.
  • the aerial work vehicle further includes a third outrigger 60 and a fourth outrigger 70
  • the first outrigger 20 and the second outrigger 30 are both disposed on the rear side of the vehicle body 10
  • the third outrigger 60 and The fourth outriggers 70 are all disposed on the front side of the vehicle body 10
  • both the third outriggers 60 and the fourth outriggers 70 include telescopic outrigger structures.
  • the third outrigger 60 and the fourth outrigger 70 are located on the left and right sides of the front of the vehicle body 10 respectively, and the first outrigger 20 and the second outrigger 30 are respectively located on the vehicle body On the left and right sides of the rear of the vehicle body 10 , four outriggers extend respectively along the left front, right front, left rear and right rear directions of the vehicle body 10 , so as to achieve a relatively stable support for the vehicle body 10 .
  • Both the third supporting leg 60 and the fourth supporting leg 70 adopt a telescopic supporting leg structure.
  • the third leg 60 includes a fifth leg 61 and a sixth leg 62 , the fifth leg 61 is connected to the vehicle body 10 , and the sixth leg 62 is connected to the fifth leg 62 . 61 connected and supported on the ground.
  • the fifth leg 61 includes a movable leg 611 and a fixed leg 612, the fixed leg 612 is fixedly connected to the vehicle body 10, the fixed leg 612 is a box-shaped structure, the fixed leg 612 has an inner cavity, and the movable leg The 611 is inserted into the inner cavity of the fixed leg 612 , and the movable leg 611 can be extended or retracted relative to the fixed leg 612 .
  • the fifth outrigger portion 61 is in an unfolded state; when the movable outrigger 611 is retracted, the fifth outrigger portion 61 is in a retracted state.
  • the sixth outrigger part 62 also adopts a telescopic outrigger structure. After the fifth outrigger part 61 is unfolded, the inner leg of the sixth outrigger part 62 is extended relative to the outer leg, and the outrigger at the end of the inner leg is supported on the ground. Achieve solid support.
  • the structure of the fourth leg 70 is the same as that of the third leg 60 . That is, both the first outrigger 20 and the second outrigger 30 adopt a swinging outrigger structure, and both the third outrigger 60 and the fourth outrigger 70 adopt a telescopic outrigger structure, which can reduce the need for existing aerial work.
  • the structural transformation of the front end of the vehicle improves the adaptability of the working vehicle to the working conditions through the structural transformation of the rear side, and at the same time reduces the total weight of the vehicle body to meet the road requirements of the working vehicle.
  • the aerial work vehicle further includes a tool box 80 , a disembarkation control box 90 and a cab 100 , and the tool box 80 and the disembarkation control box 90 are both disposed near the first leg 20 and the second leg 30 .
  • One side of the cab 100 is a tool box 80 , a disembarkation control box 90 and a cab 100 , and the tool box 80 and the disembarkation control box 90 are both disposed near the first leg 20 and the second leg 30 .
  • One side of the cab 100 is one side of the cab 100 .
  • Disposing the toolbox 80 and the disembarkation control box 90 in front of the first outrigger 20 and the second outrigger 30 can prevent the first outrigger 20 and the second outrigger 30 from contacting the toolbox 80 and the dismounting during the unfolding process
  • the control box 90 interferes.
  • the tool box 80 may be disposed in front of the first leg 20 , and the get-off control box 90 may be disposed in front of the second leg 30 .
  • the tool box 80 may be disposed in front of the second leg 30
  • the get-off control box 90 may be disposed in front of the first leg 20 .
  • Some common tools such as wrenches, pliers, screws, etc., can be placed in the tool box 80 .
  • Electrical control elements and the like may be provided in the get-off control box 90 .
  • the two outriggers on the rear side are transformed into swinging outriggers, which can improve the working conditions. Adaptability, reduce the weight of the outriggers, and at the same time do not cause major changes to the vehicle body 10. Moving the toolbox 80 and the disembarkation control box 90 forward can optimize the structural arrangement and avoid interference with the outriggers.
  • the inventor found through research that on the aerial work vehicle, the vehicle body 10 is provided with a turntable 110 , and the telescopic arm 130 mounted on the vehicle is installed on the turntable 110 , so that the distance between the telescopic arm 130 and the upper surface of the vehicle body 10 is There is a preset distance to allow the drive device 40 to be arranged between the first outrigger 20 and the second outrigger 30, and the arrangement of the drive device 40 will not affect the arrangement of other components on the vehicle body 10, so by a drive
  • the device replaces the two driving devices that drive the two outriggers respectively, and makes full use of the advantages of the structural arrangement on the aerial work vehicle, which can not only ensure the synchronism of the two outrigger swings, but also save costs and reduce the overall weight of the work vehicle.
  • the telescopic arm 130 includes a multi-section arm, and the telescopic arm 130 can be extended or shortened to transport the working platform 120 connected to the head of the telescopic arm 130 to a preset height for operation.
  • the embodiment of the present disclosure adopts a swinging outrigger structure with only a single arm by modifying the structure of the two rear outriggers, and uses a driving device to drive the two outriggers to swing at the same time, and the outriggers also adopt a variable-section design,
  • These improvement measures are all conducive to reducing the overall weight of the work vehicle, realizing lightweight design, and achieving the purpose of energy saving and emission reduction; at the same time, it is beneficial to make the work vehicle meet the weight requirements for driving on urban roads; in addition, on the premise that the overall weight is equal
  • the weight of the car body is reduced, the weight of the car can be appropriately increased, the total length of the car can be increased, and the reachable height of the car can be increased.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Civil Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

本公开涉及一种高空作业车，包括车体(10)、第一支腿(20)、第二支腿(30)和驱动装置(40)，第一支腿(20)和第二支腿(30)分别与所述车体(10)可转动地连接，驱动装置(40)可动地安装在所述车体(10)上，所述驱动装置(40)连接在所述第一支腿(20)和所述第二支腿(30)之间，并用于驱动所述第一支腿(20)和所述第二支腿(30)相对于所述车体(10)的中线向两侧展开或向中间收回。本公开可以有效减轻支腿重量，提高支腿对不同工况的适应能力。

Description

高空作业车
本申请是以中国申请号为202110862235.1，申请日为2021年7月29日的申请为基础，并主张其优先权，该中国申请的公开内容在此作为整体引入本申请中。
技术领域
本公开涉及工程机械技术领域，尤其涉及一种高空作业车。
背景技术
高空作业车(简称高空车)是一种用来运送工作人员和工作器材到达指定高度进行作业的专用工程车辆。高空作业车的支腿是起调平和保证整车稳定性的关键部件。
目前，在相关技术中，高空作业车的四个支腿均采用具有两节臂的伸缩式支腿，支腿整体重量较大，容易出现臂体局部压溃、失稳问题；而且，支腿为固定式支腿，对工况的适应性较差。
需要说明的是，公开于本公开背景技术部分的信息仅仅旨在增加对本公开的总体背景的理解，而不应当被视为承认或以任何形式暗示该信息构成已为本领域技术人员所公知的现有技术。
发明内容
本公开实施例提供一种高空作业车，可以有效减轻支腿的重量。
根据本公开的一个方面，提供一种高空作业车，包括：
车体；
第一支腿、第二支腿，分别与车体可转动地连接；和
驱动装置，可动地安装在车体上，驱动装置连接在第一支腿和第二支腿之间，并用于驱动第一支腿和第二支腿相对于车体的中线向两侧展开或向中间收回。
在一些实施例中，高空作业车还包括安装在车体上的支撑杆，驱动装置包括驱动本体，驱动本体设有安装孔，驱动本体通过安装孔可滑动地安装在支撑杆上。
在一些实施例中，高空作业车还包括轴承，轴承设置在驱动本体的安装孔与支撑杆之间。
在一些实施例中，驱动装置包括缸体以及设置在缸体内并从缸体的两端分别伸出 的第一活塞杆和第二活塞杆，第一活塞杆与第一支腿可转动地连接，第二活塞杆与第二支腿可转动地连接。
在一些实施例中，高空作业车还包括第一连接轴、设置在第一支腿侧面的第一耳板和第二耳板，第一耳板设有第一连接孔，第二耳板设有第二连接孔，第一活塞杆设有第三连接孔，第一连接轴穿过第一连接孔、第三连接孔和第二连接孔，以连接第一活塞杆和第一支腿。
在一些实施例中，高空作业车还包括第二连接轴、设置在第二支腿侧面的第三耳板和第四耳板，第三耳板设有第三连接孔，第四耳板设有第四连接孔，第二活塞杆设有第五连接孔，第二连接轴穿过第三连接孔、第五连接孔和第四连接孔，以连接第二活塞杆和第二支腿。
在一些实施例中，驱动装置被配置为驱动第一支腿和第二支腿相对于车体的中线向两侧展开预设角度，预设角度为0-90°。
在一些实施例中，驱动装置被配置为将第一支腿和第二支腿收回至与车体的中线相互平行的位置。
在一些实施例中，第一支腿包括靠近车体的第一端和远离车体的第二端，第一端的横截面面积大于第二端的横截面面积。
在一些实施例中，第一支腿的横截面面积自第一端向第二端逐渐减小。
在一些实施例中，高空作业车还包括第三支腿和第四支腿，第一支腿和第二支腿均设置于车体的后侧，第三支腿和第四支腿均设置于车体的前侧，第三支腿和第四支腿均包括伸缩型支腿结构。
在一些实施例中，高空作业车还包括工具箱、下车控制箱和驾驶室，工具箱和下车控制箱均设置于第一支腿和第二支腿的靠近驾驶室的一侧。
基于上述技术方案，在本公开实施例中，第一支腿和第二支腿通过驱动装置相对于车体摆动，以实现第一支腿和第二支腿向车体的两侧展开或向中间收回的目的，这种摆动式的结构不需要设置可伸缩的两节臂，因此可以大大减轻支腿的重量，减少支腿被压溃、失稳的问题；而且摆动式支腿可以根据工况需要调节展开角度的大小，更好地适应工况的需求，提高支腿的适应能力，安全性也更好。
附图说明
为了更清楚地说明本公开实施例或现有技术中的技术方案，下面将对实施例或现 有技术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公开的实施例，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，还可以根据提供的附图获得其他的附图。
图1为本公开高空作业车一个实施例的结构示意图。
图2为本公开高空作业车一个实施例中第一支腿和第二支腿处于收回状态时的俯视图。
图3为本发明高空作业车一个实施例中第一支腿和第二支腿处于展开状态时的俯视图。
图4为本发明高空作业车一个实施例中第一支腿的主视图。
图5为本发明高空作业车一个实施例中第一支腿的俯视图。
图6为本发明高空作业车一个实施例中驱动装置的俯视图。
图7为本发明高空作业车一个实施例中驱动装置的侧视图。
图8为本发明高空作业车一个实施例中第三支腿的结构示意图。
图中：
10、车体；20、第一支腿；21、第一支腿部；22、第二支腿部；23、第一耳板；24、第二耳板；30、第二支腿；40、驱动装置；41、缸体；42、第一活塞杆；43、第二活塞杆；44、第一有杆腔；45、第二有杆腔；46、无杆腔；50、支撑杆；51、第一支撑座；52、第二支撑座；60、第三支腿；61、第五支腿部；611、活动支腿；612、固定支腿；62、第六支腿部；70、第四支腿；80、工具箱；90、下车控制箱；100、驾驶室；110、回转台；120、作业平台；130、伸缩臂。
具体实施方式
下面将结合本公开实施例中的附图，对实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本公开的一部分实施例，而不是全部的实施例。基于本公开的实施例，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他实施例，都属于本公开保护的范围。
在本公开的描述中，需要理解的是，术语“中心”、“横向”、“纵向”、“前”、“后”、“左”、“右”、“上”、“下”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的 方位、以特定的方位构造和操作，因此不能理解为对本公开保护范围的限制。
如图1-3所示，在本公开提供的高空作业车的一些实施例中，该高空作业车包括车体10、第一支腿20、第二支腿30和驱动装置40，第一支腿20和第二支腿30分别与车体10可转动地连接，驱动装置40可动地安装在车体10上，驱动装置40连接在第一支腿20和第二支腿30之间，并用于驱动第一支腿20和第二支腿30相对于车体10的中线向两侧展开或向中间收回。
在上述实施例中，第一支腿20和第二支腿30通过驱动装置40相对于车体10摆动，以实现第一支腿20和第二支腿30向车体10的两侧展开或向中间收回的目的，这种摆动式的结构不需要设置可伸缩的两节臂，因此可以大大减轻支腿的重量，减少支腿被压溃、失稳的问题；而且摆动式支腿可以根据工况需要调节展开角度的大小，更好地适应工况的需求，提高支腿的适应能力，安全性也更好。
另外，在本公开实施例中，驱动装置同时驱动第一支腿20和第二支腿30运动，即第一支腿20和第二支腿30通过同一个驱动装置进行驱动，而不是分别通过独立的驱动装置进行驱动，可以减少驱动装置的数量，从而节约成本，同时有利于减小作业车的总体重量。
而且，第一支腿20和第二支腿30通过驱动装置的驱动而展开或收回，因此不需要沿水平方向的伸缩，不需要设置水平油缸，也不需要设置固定支腿箱和相对于固定支腿箱伸出的活动支腿，因此可以大大减轻支腿的总重量，进而减轻高空作业车的整体重量。不设置固定支腿箱，还可以为车体10腾出一些空间，优化车体10上各部件的布置。
如图2所示，在非工作状态时，第一支腿20和第二支腿30处于收回状态，第一支腿20和第二支腿30收回至与车体10的中线相互平行的方向，与车体10的行驶方向也是相互平行的，这样在车体10行走时第一支腿20和第二支腿30不会与其他物品发生干涉，避免碰撞。
如图3所示，在驱动装置40的作用下，第一支腿20和第二支腿30向远离彼此的方向转动，以使第一支腿20和第二支腿30相对于车体10的中线向两侧展开，第一支腿20和第二支腿30根据高空作业车的作业场地大小展开至预设角度，第一支腿20和第二支腿30进入展开状态(也是工作状态)，第一支腿20和第二支腿30可以对车体10进行稳定的支撑。此时，高空作业车的上车可以开始工作，上车工作完成后，在驱动装置40的作用下，第一支腿20和第二支腿30可以向靠近彼此的方向转 动，以使第一支腿20和第二支腿30相对于车体10的中线向中间收回，直至收回至第一支腿20和第二支腿30与车体10的中线相互平行的位置，即回到初始状态。
在一些实施例中，驱动装置40被配置为驱动第一支腿20和第二支腿30相对于车体10的中线向两侧展开预设角度，预设角度为0-90°。
在相关技术中，支腿采用固定式支腿结构，支腿展开角度也是固定的，无法根据实际工况的需求而适应性调整。而在本公开实施例中，通过控制驱动装置40，可以将第一支腿20和第二支腿30保持在预设的展开角度处，以适应不同工况的需求。比如，在场地比较狭窄或者场地不平时，可以根据具体需要，将第一支腿20和第二支腿30展开至合适的角度，展开角度的取值范围为0-90°，比如10°、20°、30°、40°、50°、60°、70°或者80°等。
在一些实施例中，驱动装置40被配置为将第一支腿20和第二支腿30收回至与车体10的中线相互平行的位置。该位置可以有效保证在车体10移动过程中第一支腿20和第二支腿30不会与其他物品发生干涉或碰撞，提高车体行走的安全性。
在一些实施例中，第一支腿20包括靠近车体10的第一端和远离车体10的第二端，第一端的横截面面积大于第二端的横截面面积。即，第一端较粗，第二端较细。这样设置可以增大靠近车体10的第一端的结构强度，增大第一支腿20的第一端的截面惯性矩，极大提升第一支腿20的承载能力，同时，在满足结构强度要求的前提下，还可以尽可能减轻第一支腿20的总重量。
在一些实施例中，第一支腿20的横截面面积自第一端向第二端逐渐减小。
如图4所示，第一支腿20包括第一支腿部21和第二支腿部22，第一支腿部21与车体10可转动地连接，第二支腿部22与第一支腿部21连接，第二支腿部22用于支撑于地面上。第一支腿部21的横截面面积自第一端向第二端逐渐减小。
第二支腿部22采用伸缩式支腿结构，第一支腿20展开至预设角度后，第二支腿部22的内腿相对于外腿伸出，内腿端部的支脚支撑于地面上，实现稳固支撑。
第二支腿30的结构可以与第一支腿20的结构相同，也可以不同。
比如，第二支腿30包括第三支腿部和第四支腿部，第三支腿部与车体10可转动地连接，第四支腿部与第三支撑部连接并用于支撑于地面上。第三支腿部的横截面面积自第一端向第二端逐渐减小。
第四支腿部采用伸缩式支腿结构，第二支腿30展开至预设角度后，第四支腿部的内腿相对于外腿伸出，内腿端部的支脚支撑于地面上，实现稳固支撑。
在一些实施例中，高空作业车还包括安装在车体10上的支撑杆50，驱动装置40包括驱动本体，驱动本体设有安装孔，驱动本体通过安装孔可滑动地安装在支撑杆50上。
通过设置支撑杆50，可以对驱动装置40进行支撑，并使驱动装置40沿着支撑杆50的延伸方向滑动，避免驱动装置40在驱动第一支腿20和第二支腿30摆动的过程中发生偏摆。
支撑杆50的延伸方向与车体10的中线方向相互平行，以使驱动装置40在驱动第一支腿20和第二支腿30摆动的过程中能够沿着与车体10的中线相互平行的方向运动，以适应第一支腿20和第二支腿30在摆动过程中在与车体10的中线相互平行的方向上产生的位移，防止驱动装置40与第一支腿20和第二支腿30的连接处受到拉力而发生断裂等问题。
另外，通过设置支撑杆50，还可以防止驱动装置40在与支撑杆50相互垂直的方向上发生位移，从而避免驱动装置40发生偏摆，有利于使第一支腿20和第二支腿30的摆动能够保持同步，提高对展开角度的控制精度。
在一些实施例中，高空作业车还包括轴承，轴承设置在驱动本体的安装孔与支撑杆50之间。通过在驱动本体的安装孔与支撑杆50之间设置轴承，可以使驱动装置40与支撑杆50之间的相对运动更加顺滑，避免驱动装置40或支撑杆50之间发生比较严重的磨损，有效提高驱动装置40与支撑杆50的使用寿命。
轴承可以采用直线式的滑动轴承，以使驱动装置40能够相对于支撑杆50顺畅地滑动。
如图6所示，支撑杆50的第一端通过第一支撑座51安装在车体10上，支撑杆50的第二端通过第二支撑座52安装在车体10上。支撑杆50相对于车体10保持固定。
如图7所示，驱动装置40的驱动本体的下侧设有安装块，安装块上设有安装孔，安装孔中安装有轴承，支撑杆50插入轴承的内孔中。
驱动装置40可以采用油缸、气缸或者电机等结构。
在一些实施例中，驱动装置40包括缸体41(即驱动本体)以及设置在缸体41内并从缸体41的两端分别伸出的第一活塞杆42和第二活塞杆43，第一活塞杆42与第一支腿20可转动地连接，第二活塞杆43与第二支腿30可转动地连接。
缸体41的内部空间被第一活塞杆42和第一活塞杆42分隔为第一有杆腔44、第二有杆腔45和无杆腔46，无杆腔46位于第一有杆腔44和第二有杆腔45之间。当第 一有杆腔44和第二有杆腔45接通高压端，无杆腔46接通低压端时，第一活塞杆42和第一活塞杆42缩回，带动第一支腿20和第二支腿30回到收回位置；当第一有杆腔44和第二有杆腔45接通低压端，无杆腔46接通高压端时，第一活塞杆42和第一活塞杆42伸出，带动第一支腿20和第二支腿30展开。
在一些实施例中，高空作业车还包括第一连接轴、设置在第一支腿20侧面的第一耳板23和第二耳板24，第一耳板23设有第一连接孔，第二耳板24设有第二连接孔，第一活塞杆42设有第三连接孔，第一连接轴穿过第一连接孔、第三连接孔和第二连接孔，以连接第一活塞杆42和第一支腿20。
如图4和图5所示，通过设置第一耳板23和第二耳板24，可以提高第一活塞杆42与第一支腿20连接的可靠性。
在一些实施例中，高空作业车还包括第二连接轴、设置在第二支腿30侧面的第三耳板和第四耳板，第三耳板设有第三连接孔，第四耳板设有第四连接孔，第二活塞杆43设有第五连接孔，第二连接轴穿过第三连接孔、第五连接孔和第四连接孔，以连接第二活塞杆43和第二支腿30。
通过设置第三耳板和第四耳板，可以提高第二活塞杆43和第二支腿30连接的可靠性。
在一些实施例中，高空作业车还包括第三支腿60和第四支腿70，第一支腿20和第二支腿30均设置于车体10的后侧，第三支腿60和第四支腿70均设置于车体10的前侧，第三支腿60和第四支腿70均包括伸缩型支腿结构。
在图2和图3所示的实施例中，第三支腿60和第四支腿70分别位于车体10的前方左右两侧，第一支腿20和第二支腿30分别位于车体10的后方左右两侧，四个支腿分别沿车体10的左前、右前、左后和右后方向延伸，以对车体10实现比较稳定的支撑。
第三支腿60和第四支腿70均采用伸缩式的支腿结构。
如图8所示，第三支腿60包括第五支腿部61和第六支腿部62，第五支腿部61与车体10连接，第六支腿部62与第五支腿部61连接，并支撑于地面上。第五支腿部61包括活动支腿611和固定支腿612，固定支腿612固定连接在车体10上，固定支腿612为箱体型结构，固定支腿612具有内部空腔，活动支腿611插装在固定支腿612的内部空腔里，活动支腿611能够相对于固定支腿612伸出或缩回。活动支腿611伸出时，第五支腿部61处于展开状态；活动支腿611缩回时，第五支腿部61处于收 回状态。
第六支腿部62也采用伸缩式支腿结构，第五支腿部61展开后，第六支腿部62的内腿相对于外腿伸出，内腿端部的支脚支撑于地面上，实现稳固支撑。
在如图2和图3所示的实施例中，第四支腿70的结构与第三支腿60的结构相同。即，第一支腿20和第二支腿30均采用摆动式的支腿结构，第三支腿60和第四支腿70均采用伸缩式的支腿结构，这样可以减少对现有高空作业车前端的结构改造，通过对后侧的结构改造提高作业车对工况的适应能力，同时减轻车体的总重量，以满足作业车的上路要求。
在一些实施例中，高空作业车还包括工具箱80、下车控制箱90和驾驶室100，工具箱80和下车控制箱90均设置于第一支腿20和第二支腿30的靠近驾驶室100的一侧。
将工具箱80和下车控制箱90设置于第一支腿20和第二支腿30的前方，可以防止第一支腿20和第二支腿30在展开过程中与工具箱80和下车控制箱90发生干涉。
在本公开一些实施例中，工具箱80可以设置在第一支腿20的前方，下车控制箱90可以设置在第二支腿30的前方。当然，在其他实施例中，工具箱80可以设置在第二支腿30的前方，下车控制箱90可以设置在第一支腿20的前方。
工具箱80内可以放置一些常见工具，比如扳手、手钳、螺丝等。下车控制箱90内可以设置电气控制元件等。
在高空作业车的车体10上，基于原有的四个支腿均采用伸缩式的支腿的结构，将位于后侧的两个支腿改造为摆动式支腿，可以改善对工况的适应能力，减轻支腿的重量，同时也不会对车体10造成较大的改动，将工具箱80和下车控制箱90前移，可以优化结构布置，还可以避免与支腿发生干涉。
而且，发明人经过研究发现，在高空作业车上，车体10上设有回转台110，上车的伸缩臂130安装在回转台110上，使得伸缩臂130与车体10的上表面之间具有预设的距离，从而允许在第一支腿20和第二支腿30之间布置驱动装置40，该驱动装置40的布置也不会影响车体10上其他部件的布置，因此通过一个驱动装置代替分别驱动两个支腿的两个驱动装置，充分利用了高空作业车上结构布置的优势，既能保证两个支腿摆动的同步性，又可以节约成本，减轻作业车的总体重量。
伸缩臂130包括多节臂，伸缩臂130可以伸长或缩短，以将连接于伸缩臂130头部的作业平台120运送至预设的高度进行作业。
本公开实施例通过对后方两个支腿的结构改造，采用了只有单节臂的摆动式支腿结构，而且利用一个驱动装置同时驱动两个支腿摆动，支腿还采用了变截面设计，这些改进措施都有利于减轻作业车的整体重量，实现轻量化设计，达到节能减排的目的；同时，有利于使作业车满足在城市道路上行驶的重量要求；另外，在总体重量相等的前提下，车体重量减轻，可以适当增加上车重量，增大上车作业时的总长度，提高上车的可达高度。
最后应当说明的是：以上实施例仅用以说明本公开的技术方案而非对其限制；尽管参照较佳实施例对本公开进行了详细的说明，所属领域的普通技术人员应当理解：在不脱离本公开原理的前提下，依然可以对本公开的具体实施方式进行修改或者对部分技术特征进行等同替换，这些修改和等同替换均应涵盖在本公开请求保护的技术方案范围当中。

Claims (12)

  1. 一种高空作业车，包括：
    车体(10)；
    第一支腿(20)、第二支腿(30)，分别与所述车体(10)可转动地连接；和
    驱动装置(40)，可动地安装在所述车体(10)上，所述驱动装置(40)连接在所述第一支腿(20)和所述第二支腿(30)之间，并用于驱动所述第一支腿(20)和所述第二支腿(30)相对于所述车体(10)的中线向两侧展开或向中间收回。
  2. 根据权利要求1所述的高空作业车，还包括安装在所述车体(10)上的支撑杆(50)，所述驱动装置(40)包括驱动本体，所述驱动本体设有安装孔，所述驱动本体通过所述安装孔可滑动地安装在所述支撑杆(50)上。
  3. 根据权利要求2所述的高空作业车，还包括轴承，所述轴承设置在所述驱动本体的所述安装孔与所述支撑杆(50)之间。
  4. 根据权利要求1～3任一项所述的高空作业车，其中，所述驱动装置(40)包括缸体(41)以及设置在所述缸体(41)内并从所述缸体(41)的两端分别伸出的第一活塞杆(42)和第二活塞杆(43)，所述第一活塞杆(42)与所述第一支腿(20)可转动地连接，所述第二活塞杆(43)与所述第二支腿(30)可转动地连接。
  5. 根据权利要求4所述的高空作业车，还包括第一连接轴、设置在所述第一支腿(20)侧面的第一耳板(23)和第二耳板(24)，所述第一耳板(23)设有第一连接孔，所述第二耳板(24)设有第二连接孔，所述第一活塞杆(42)设有第三连接孔，所述第一连接轴穿过所述第一连接孔、所述第三连接孔和所述第二连接孔，以连接所述第一活塞杆(42)和所述第一支腿(20)。
  6. 根据权利要求4或5所述的高空作业车，还包括第二连接轴、设置在所述第二支腿(30)侧面的第三耳板和第四耳板，所述第三耳板设有第三连接孔，所述第四耳板设有第四连接孔，所述第二活塞杆(43)设有第五连接孔，所述第二连接轴穿过所 述第三连接孔、所述第五连接孔和所述第四连接孔，以连接所述第二活塞杆(43)和所述第二支腿(30)。
  7. 根据权利要求1～6任一项所述的高空作业车，其中，所述驱动装置(40)被配置为驱动所述第一支腿(20)和所述第二支腿(30)相对于所述车体(10)的中线向两侧展开预设角度，所述预设角度为0-90°。
  8. 根据权利要求1～7任一项所述的高空作业车，其中，所述驱动装置(40)被配置为将所述第一支腿(20)和所述第二支腿(30)收回至与所述车体(10)的中线相互平行的位置。
  9. 根据权利要求1～8任一项所述的高空作业车，其中，所述第一支腿(20)包括靠近所述车体(10)的第一端和远离所述车体(10)的第二端，所述第一端的横截面面积大于所述第二端的横截面面积。
  10. 根据权利要求9所述的高空作业车，其中，所述第一支腿(20)的横截面面积自所述第一端向所述第二端逐渐减小。
  11. 根据权利要求1～10任一项所述的高空作业车，还包括第三支腿(60)和第四支腿(70)，所述第一支腿(20)和所述第二支腿(30)均设置于所述车体(10)的后侧，所述第三支腿(60)和所述第四支腿(70)均设置于所述车体(10)的前侧，所述第三支腿(60)和所述第四支腿(70)均包括伸缩型支腿结构。
  12. 根据权利要求1～11任一项所述的高空作业车，还包括工具箱(80)、下车控制箱(90)和驾驶室(100)，所述工具箱(80)和所述下车控制箱(90)均设置于所述第一支腿(20)和所述第二支腿(30)的靠近所述驾驶室(100)的一侧。
PCT/CN2021/110097 2021-07-29 2021-08-02 高空作业车 WO2022156184A1 (zh)

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