WO2019001589A1 - 变幅装置及隧道检修车辆 - Google Patents

变幅装置及隧道检修车辆 Download PDF

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Publication number
WO2019001589A1
WO2019001589A1 PCT/CN2018/099393 CN2018099393W WO2019001589A1 WO 2019001589 A1 WO2019001589 A1 WO 2019001589A1 CN 2018099393 W CN2018099393 W CN 2018099393W WO 2019001589 A1 WO2019001589 A1 WO 2019001589A1
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WIPO (PCT)
Prior art keywords
link
connecting portion
rotatably connected
intermediate member
work platform
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Application number
PCT/CN2018/099393
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English (en)
French (fr)
Inventor
马洪锋
陆永能
李根文
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徐工集团工程机械有限公司
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Application filed by 徐工集团工程机械有限公司 filed Critical 徐工集团工程机械有限公司
Publication of WO2019001589A1 publication Critical patent/WO2019001589A1/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
    • 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
    • B66F13/00—Common constructional features or accessories

Definitions

  • the present disclosure relates to the field of railway maintenance equipment, and in particular to a luffing device and a tunnel inspection vehicle.
  • the railway maintenance work vehicle is a special maintenance equipment for railways.
  • the multi-functional work platform and work tools are installed on the maintenance work vehicle to realize the laying line, inspection and maintenance work of the contact net.
  • railway mileage has increased year by year
  • the number of culverts and tunnels along the railway has also increased geometrically
  • the culverts and tunnels of existing lines are aging.
  • the three operating platforms include a large platform and two small platforms mounted on either side of the large platform.
  • the large platform is welded on the upper end surface of the main horizontal arm, and the main horizontal arm is mounted on the top end surface of the main column extension arm, and the main column extension arm is driven vertically to be lifted and lowered by the driving device.
  • the small platform is mounted on the top surface of the small column extension arm, and the small column extension arm is driven vertically by the driving device, and the small column extension arm is mounted on the basic arm of the small column, and the basic arm of the small column is symmetrically mounted on both end faces of the horizontal arm.
  • the horizontal reach arm is driven horizontally by the drive. Work on the upper area of the platform through the vertical and horizontal movement of the platform.
  • the inventors have found that at least the prior art has problems in that the working platform can only reach the space and the area above the initial position of the working platform, and cannot reach the space below the initial position, and the full-section operation in the tunnel cannot be realized.
  • One of the objects of the present disclosure is to provide a luffing device and a tunnel inspection vehicle for operating the work platform at a plurality of height positions.
  • the present disclosure provides a luffing device comprising:
  • a driving mechanism one end is rotatably connected to the connecting portion, and the other end is rotatably connected to the connecting portion through a first intermediate member; the other end of the driving mechanism is further rotatably connected to the fixing portion through a second intermediate member .
  • the rotatable position of the first intermediate member and the connecting portion is at a position where the connecting portion and the fixing portion are rotatably connected, and a position of the driving mechanism is rotatable with the connecting portion Connected between locations.
  • the drive mechanism comprises:
  • the second intermediate member is rotatably coupled to the fixing portion.
  • the first intermediate member and/or the second intermediate member comprise a rod.
  • the connecting portion comprises:
  • the fixing portion, the first link, the second link and the working platform form a four-bar linkage mechanism.
  • the first link and the second link are both bent, and the drive mechanism is disposed on a concave side of the second link.
  • one end of the drive mechanism is rotatably coupled to a bend of the second link.
  • a rotatable connection of the first link to the fixed portion, a rotatable connection of the first link to the work platform, the second link, and the operation form a parallelogram.
  • the fixing portion includes:
  • An arm head fixedly connected to the telescopic arm
  • the other end of the driving mechanism is rotatably connected to the arm head through the second intermediate member, and the working platform is rotatably connected to the arm head through the connecting portion.
  • the work platform is rotatably coupled to the connection.
  • Another embodiment of the present disclosure provides a tunnel inspection vehicle, including the luffing device provided by any one of the technical solutions of the present disclosure.
  • the other end of the driving mechanism is rotatably connected to the connecting portion and the fixing portion at the same time; when the driving mechanism is extended or contracted, the connecting portion is driven to rotate around the fixing portion.
  • the rotation of the connecting portion is transmitted to the driving mechanism through the second intermediate member, so that the driving mechanism also rotates around the fixed portion.
  • FIG. 1 is a schematic cross-sectional view of a luffing device provided in a tunnel operation according to an embodiment of the present disclosure
  • FIG. 2 is a schematic plan view showing a plane structure of a luffing device according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of a luffing device of the present disclosure according to an embodiment of the present invention, which is up-shifted to a maximum amplitude-changing position;
  • FIG. 4 is a schematic diagram of a luffing device of the present disclosure according to an embodiment of the present disclosure to a maximum amplitude changing position
  • FIG. 5 is a schematic perspective structural view of a luffing device according to an embodiment of the present disclosure.
  • an embodiment of the present disclosure provides a luffing device 101 including a fixing portion 1 , a connecting portion 2 , a working platform 3 , and a driving mechanism 4 .
  • the working platform 3 is connected to the fixing portion 1 through the connecting portion 2; one end of the driving mechanism 4 is rotatably connected to the connecting portion 2, and the other end is rotatably connected to the connecting portion 2 through the first intermediate member 5 and is fixed by the second intermediate member 6
  • the part 1 is rotatably connected.
  • the driving mechanism 4 is, for example, a telescopic structure, and the working platform 3 is expanded and contracted.
  • the drive mechanism 4 can also take other forms of motion to drive the connecting portion 2 to rotate relative to the fixed portion 1.
  • the first intermediate member 5 and the rotatable position (B) of the connecting portion 2 are located at the rotatably coupled positions (A, G) of the connecting portion 2 and the fixed portion 1, and one end of the driving mechanism 4 Between the rotatable connection positions (where E) of the connecting portion 2.
  • the connecting portion 2 includes a first link 21 and a second link 22, and the rotatable position B of the first intermediate member 5 and the second link 22 is rotatably connected to the fixed portion 1 of the second link 22
  • the position G is between the one end of the drive mechanism 4 and the rotatable connection position E of the second link 22.
  • the first intermediate part 5 and/or the second intermediate part 6 comprise a rod.
  • the first intermediate member 5 and the second intermediate member 6 each include a rod.
  • the rod effectively transmits the amount of rotation and has good rigidity.
  • the number of first intermediate members 5 may be two, and the two first intermediate members 5 are, for example, of the same structure and size.
  • the drive mechanism 4 includes a piston cylinder, one end of which is rotatably coupled to the connecting portion 2.
  • the other end of the piston cylinder is rotatably connected to the connecting portion 2 via a first intermediate member 5, and the other end of the piston cylinder is also rotatably coupled to the fixed portion 1 via a second intermediate member 6.
  • the connecting mode serves to multiply the expansion and contraction amount of the piston cylinder. That is, the piston cylinder has a large amount of expansion and contraction with a small amount of expansion and contraction.
  • the work platform 3 is rotatably coupled to the connecting portion 2.
  • the connecting portion 2 During the rotation of the connecting portion 2 around the fixed portion 1, the work platform 3 is swung.
  • the working platform 3 is directed around the connecting portion 2 toward the connecting portion 2 under the gravity of the working platform 3 itself.
  • the rotation of the rotation in the opposite direction is such that the work platform 3 is always level to achieve automatic leveling of the work platform 3.
  • the connecting portion 2 includes a first link 21 and a second link 22.
  • the fixed portion 1, the first link 21, the second link 22, and the work platform 3 form a four-bar linkage mechanism.
  • the four-bar linkage mechanism is stable in force, which effectively ensures the safety of the work platform 3.
  • the first link 21 and the second link 22 are, for example, of the same structure and size.
  • first link 21 and the second link 22 are both bent, and the driving mechanism 4 is disposed on the concave side of the second link 22.
  • Both the first link 21 and the second link 22 adopt a bent shape, on the one hand, the rigidity of the first link 21 and the second link 22 can be enhanced, and on the other hand, sufficient provision can be provided for the setting of the drive mechanism 4. Installation, action space.
  • one end of the drive mechanism 4 is rotatably coupled to the bend of the second link 22.
  • the rotatable connection (A) of the first link 21 and the fixed portion 1 the rotatable connection (C) of the first link 21 and the work platform 3, the second link 22 and the work platform
  • the rotatable joint (D) of 3, the second link 22 and the rotatable joint (G) of the fixed portion 1 form a parallelogram.
  • the fixing portion 1 includes a telescopic arm 11 and an arm head 12.
  • the arm head 12 is fixedly coupled to the telescopic arm 11, and the other end of the drive mechanism 4 is rotatably coupled to the arm head 12 via a second intermediate member 6, and the work platform 3 is rotatably coupled to the arm head 12 via the connecting portion 2.
  • the service work vehicle 103 travels on the track 104 to perform an inspection operation on the space area of the tunnel section 102.
  • the luffing device 101 is mounted on the upper portion of the inspection work vehicle 103, and can carry people to a certain area of the tunnel to perform maintenance work.
  • the luffing device 101 mainly includes a telescopic arm 11, an arm head 12, a first link 21, a second link 22, a work platform 3, a drive mechanism 4, a first intermediate member 5, and a second
  • the intermediate part 6 is composed.
  • the telescopic arm 11 is welded to the arm head 12, and the other structures are connected by an articulated form to form a luffing mechanism.
  • the arm head 12, the second link 22, the piston cylinder, the first intermediate member 5, and the second intermediate member 6 constitute a multi-rod luffing mechanism which realizes the second link 22 under a small movement stroke of the piston cylinder For example, a range of more than 150° is advantageous for variable amplitude motion in a small space.
  • the arm head 12 and the second link 22 are hingedly connected to the hinge point G, and the arm head 12 and the second intermediate member 6 are hingedly connected to the hinge point H, and the second link 22 is first.
  • the intermediate member 5 is hingedly connected to the hinge point B
  • the piston cylinder is hingedly connected to the hinge point F
  • the second link 22 is connected to the piston cylinder in an articulated manner.
  • the hinge point E When the cylinder is telescopic, the above mechanism can realize the luffing movement, and the second link 22 rotates around the hinge point G.
  • the change of the hinge point F is like a multiplier, so that the piston cylinder has a smaller telescopic stroke, and the second link 22 produces a larger amplitude.
  • the arm head 12, the first link 21, the second link 22, and the work platform 3 constitute a four-bar mechanism, and the arm head 12 and the first link 21 are hingedly connected to the hinge point A, first The connecting rod 21 and the work platform 3 are hingedly connected to the hinge point C, and the second link 22 and the work platform 3 are hingedly connected to the hinge point D, and the four hinge points A, C, D of the four-bar mechanism , G forms a parallelogram.
  • the AG side of the parallelogram is always parallel to the CD side during motion.
  • the work platform 3 rotates in the opposite direction of the hinge point D at the same rotational speed, thereby ensuring that the work platform 3 is always level and realizes the operation.
  • the mechanical of the platform 3 is automatically leveled.
  • the automatic leveling mechanism and the multi-bar luffing mechanism described above form a variable-width automatic leveling work platform 3, and reach the lowermost area of the tunnel in a narrow space of the tunnel to realize the full-section operation of the tunnel.
  • the first link 21 is located on the left side of the work platform 3, and the work platform 3 carries the operator and equipment. During the movement of the entire working mechanism, the first link 21 is subjected to tension, thereby avoiding the instability caused by the compression of the elongated rod.
  • the second link 22 has a corner at which a hinge point E is arranged, the corner point being close to the side of the work platform 3.
  • the design not only increases the arrangement space of the piston cylinder and the connecting rod, but also improves the stability of the bearing of the second connecting rod 22.
  • the corners of the working platform 3 are outwardly extended, which is advantageous for increasing the maximum depth of the working platform 3.
  • the first intermediate member 5 is two rods arranged symmetrically, see Fig. 5.
  • the above technical solution realizes a large range of variation of the working platform 3 by designing a multi-bar luffing mechanism and utilizing a small movement stroke of the variable-speed cylinder, for example, a range of variation of more than 150°; and at the same time, the working platform 3 is realized Automatically leveling during the variable amplitude process.
  • the mechanism is cleverly designed and compact in layout.
  • the working platform 3 can reach the lower blind zone of the tunnel in a narrow tunnel space, and realizes the requirements for full-section inspection of the tunnel.
  • Another embodiment of the present disclosure further provides a tunnel inspection vehicle, including the luffing device provided by any one of the technical solutions of the present disclosure.

Abstract

一种变幅装置及隧道检修车辆，该变幅装置包括固定部（1）、连接部（2）、作业平台（3）以及驱动机构（4）；作业平台（3）通过连接部（2）与固定部（1）连接；驱动机构（4）的一端与连接部（2）可转动连接，另一端通过第一中间部件（5）与连接部（2）可转动连接且通过第二中间部件（6）与固定部（1）可转动连接。上述技术方案，驱动机构（4）的另一端同时与连接部（2）、固定部（1）可转动连接；当驱动机构（4）伸、缩时，会带动连接部（2）绕着固定部（1）转动，在连接部（2）转动的过程中，连接部（2）的转动会通过第二中间部件（6）传递至驱动机构（4），使得驱动机构（4）也绕着固定部（1）转动，以实现驱动机构（4）以较小的驱动量使得作业平台有较大的变幅幅度。

Description

变幅装置及隧道检修车辆
本申请是以CN申请号为201711210551.0，申请日为2017年11月28日的申请为 基础，并主张其优先权，该CN申请的公开内容在此作为整体引入本申请中。
技术领域
本公开涉及铁路养护设备领域，具体涉及一种变幅装置及隧道检修车辆。
背景技术
铁路检修作业车是铁路专用的养护设备，多功能作业平台、作业机具安装在检修作业车上，用于实现接触网的架放线、检测和维修养护作业。近年来，随着中国铁路建设速度的飞速发展，铁路里程逐年增加，铁路沿线的涵洞、隧道数量也呈几何增长，并且既有线路的涵洞、隧道老龄化严重。
现有的铁路高空作业机具，包括三个作业平台。三个作业平台包括一个大平台和安装在大平台两侧的两个小平台。大平台焊接在主水平臂上端面，主水平臂安装在主立柱伸臂顶端面，主立柱伸臂通过驱动装置驱动实现垂直升降。小平台安装于小立柱伸臂的顶端面，小立柱伸臂通过驱动装置驱动实现垂直升降，小立柱伸臂安装于小立柱基本臂上，小立柱基本臂对称安装在水平伸臂的两端面，水平伸臂通过驱动装置驱动实现水平移动。通过平台的垂直和水平运动，对平台上部区域作业。
发明人发现，现有技术中至少存在下述问题：该作业平台作业时，只能到达作业平台初始位置以上的空间与区域，无法到达初始位置以下的空间，不能实现在隧道内全断面作业。
发明内容
本公开的其中一个目的是提出一种变幅装置及隧道检修车辆，用以实现作业平台在多个高度位置作业。
本公开提供了一种变幅装置，包括：
固定部；
连接部，与所述固定部连接；
作业平台，通过所述连接部与所述固定部连接；以及
驱动机构，一端与所述连接部可转动连接，另一端通过第一中间部件与所述连接部可转动连接；所述驱动机构的另一端还通过第二中间部件与所述固定部可转动连接。
在一些实施例中，所述第一中间部件与所述连接部的可转动位置位于所述连接部与所述固定部可转动连接位置以及所述驱动机构的一端与所述连接部的可转动连接位置之间。
在一些实施例中，所述驱动机构包括：
活塞缸，所述活塞缸的一端与所述连接部可转动连接，所述活塞缸的另一端通过所述第一中间部件与所述连接部可转动连接，所述活塞缸的另一端还通过所述第二中间部件与所述固定部可转动连接。
在一些实施例中，所述第一中间部件和/或所述第二中间部件包括杆件。
在一些实施例中，所述连接部包括：
第一连杆；以及
第二连杆；
其中，所述固定部、所述第一连杆、所述第二连杆和所述作业平台形成四连杆机构。
在一些实施例中，所述第一连杆和所述第二连杆都是弯折的，所述驱动机构设于所述第二连杆内凹的一侧。
在一些实施例中，所述驱动机构的一端与所述第二连杆的弯折处可转动连接。
在一些实施例中，所述第一连杆与所述固定部的可转动连接处、所述第一连杆与所述作业平台的可转动连接处、所述第二连杆与所述作业平台的可转动连接处、所述第二连杆与所述固定部的可转动连接处形成平行四边形。
在一些实施例中，所述固定部包括：
伸缩臂；以及
臂头，与所述伸缩臂固定相连；
其中，所述驱动机构的另一端通过所述第二中间部件与所述臂头可转动连接，所述作业平台通过所述连接部与所述臂头可转动连接。
在一些实施例中，所述作业平台与所述连接部可转动连接。
本公开另一实施例提供一种隧道检修车辆，包括本公开任一技术方案所提供的变幅装置。
上述技术方案，驱动机构的另一端同时与连接部、固定部可转动连接；当驱动机构伸、缩时，会带动连接部绕着固定部转动。在连接部转动的过程中，连接部的转动会通过第二中间部件传递至驱动机构，使得驱动机构也绕着固定部转动。该结构实现了驱动机构以较小的驱动量带动连接部有较大的转动量，从而使得作业平台有较大的变幅幅度，即使得作业平台具有较大的作业范围。
附图说明
图1为本公开实施例提供的变幅装置在隧道作业的断面示意图；
图2为本公开实施例提供的变幅装置平面结构示意图；
图3为本公开实施例提供的变幅装置向上变幅到最大变幅位置的示意图；
图4为本公开实施例提供的变幅装置向下变幅到最大变幅位置的示意图；
图5为本公开实施例提供的变幅装置立体结构示意图。
具体实施方式
下面结合图1～图5对本公开提供的技术方案进行更为详细的阐述。
参见图1和图2，本公开实施例提供一种变幅装置101，包括固定部1、连接部2、作业平台3以及驱动机构4。作业平台3通过连接部2与固定部1连接；驱动机构4的一端与连接部2可转动连接，另一端通过第一中间部件5与连接部2可转动连接且通过第二中间部件6与固定部1可转动连接。
驱动机构4比如采用伸缩式结构，以伸、缩驱动作业平台3变幅。驱动机构4亦可采用其他运动形式，以驱动连接部2相对于固定部1转动。
参见图1和图2，第一中间部件5与连接部2的可转动位置(B处)位于连接部2与固定部1可转动连接位置(A处、G处)以及驱动机构4的一端与连接部2的可转动连接位置(E处)之间。本实施例中，连接部2包括第一连杆21和第二连杆22，第一中间部件5与第二连杆22的可转动位置B位于第二连杆22与固定部1可转动连接位置G与驱动机构4的一端与第二连杆22的可转动连接位置E之间。
为使得结构更加紧凑，第一中间部件5和/或第二中间部件6包括杆件。本实施例中，第一中间部件5和第二中间部件6均包括杆件。杆件有效传递了转动量，且刚度好。第一中间部件5的数量可以为两个，两个第一中间部件5比如采用相同的结构和尺寸。
参见图2或图3，驱动机构4包括活塞缸，活塞缸的一端与连接部2可转动连接。活塞缸的另一端通过第一中间部件5与连接部2可转动连接，活塞缸的另一端还通过第二中间部件6与固定部1可转动连接。
由于活塞缸的另一端既通过第一中间部件5与连接部2可转动连接、又通过第二中间部件6与固定部1可转动连接，该连接方式起到了倍增放大活塞缸伸缩量的作用，即以活塞缸以较小的伸缩量就使得作业平台3获得了较大的变幅。
参见图1、图2，作业平台3与连接部2可转动连接。在连接部2绕着固定部1转动的过程中，作业平台3变幅。在该变幅过程中，由于作业平台3与连接部2可转动连接，具体比如为枢接，则在作业平台3自身重力作用下，作业平台3会绕着连接部2朝着与连接部2的转动反方向的方向转动，以使得作业平台3始终保持水平，以实现作业平台3的自动调平。
本实施例中，连接部2包括第一连杆21和第二连杆22。固定部1、第一连杆21、第二连杆22和作业平台3形成四连杆机构。四连杆机构受力稳定，有效保证了作业平台3工作的安全性。
第一连杆21和第二连杆22比如采用相同的结构和尺寸。
参见图2，可选地，第一连杆21和第二连杆22都是弯折的，驱动机构4设于第二连杆22内凹的一侧。第一连杆21和第二连杆22都采用弯折的形状，一方面可增强第一连杆21、第二连杆22的刚度，另一方面也能为驱动机构4的设置提供足够的安装、动作空间。
参见图2，具体地，驱动机构4的一端与第二连杆22的弯折处可转动连接。
在一些实施例中，第一连杆21与固定部1的可转动连接处(A)、第一连杆21与作业平台3的可转动连接处(C)、第二连杆22与作业平台3的可转动连接处(D)、第二连杆22与固定部1的可转动连接处(G)形成平行四边形。
参见图3和图5，本实施例中，固定部1包括伸缩臂11和臂头12。臂头12与伸缩臂11固定相连，驱动机构4的另一端通过第二中间部件6与臂头12可转动连接，作业平台3通过连接部2与臂头12可转动连接。
下面结合附图介绍一具体实施例。
参见图1，其中，检修作业车103在轨道104上行驶，对隧道断面102的空间区域进行检修作业，变幅装置101安装在检修作业车103上部，可载人到达隧道的一定区域检修作业。
参见图2至图5，该变幅装置101主要包括伸缩臂11、臂头12、第一连杆21、第二连杆22、作业平台3、驱动机构4、第一中间部件5、第二中间部件6组成。其中，伸缩臂11与臂头12焊接在一起，其余各结构之间通过铰接形式连接，形成变幅运动机构。
臂头12、第二连杆22、活塞缸、第一中间部件5、第二中间部件6组成一个多杆变幅机构，该机构在活塞缸很小的运动行程下，实现第二连杆22比如超过150°的变幅范围，有利于狭小空间内的变幅运动。
参见图2，臂头12与第二连杆22采用铰接的形式连接于铰接点G，臂头12与第二中间部件6采用铰接的形式连接于铰接点H，第二连杆22与第一中间部件5采用铰接的形式连接于铰接点B、第一中间部件5、第二中间部件6、活塞缸采用铰接的形式连接于铰接点F，第二连杆22与活塞缸采用铰接的形式连接于铰接点E。当油缸伸缩时，上述机构可实现变幅运动，第二连杆22绕着铰接点G旋转。铰接点F的变动，犹如一个倍增器，使得活塞缸以较小的伸缩行程，第二连杆22产生较大的变幅幅度。
参见图2，臂头12、第一连杆21、第二连杆22、作业平台3组成一个四杆机构，臂头12与第一连杆21采用铰接的形式连接于铰接点A，第一连杆21与作业平台3采用铰接的形式连接于铰接点C，第二连杆22与作业平台3采用铰接的形式连接于铰接点D，该四杆机构的四个铰接点A、C、D、G形成一个平行四边形。运动过程中平行四边形的AG边始终与CD边平行。当第二连杆22在多杆变幅机构驱动下，绕铰接点G转动时，作业平台3会以相同的转动速度绕铰接点D相反的方向转动，保证作业平台3始终保持水平，实现作业平台3的机械自动调平。该自动调平机构与上文的多杆变幅机构，组成一个变幅自动调平作业平台3，在隧道狭小的空间内达到隧道的最下部区域，实现隧道全断面的作业。
上述技术方案，第一连杆21位于作业平台3的左边，作业平台3承载操作人员及设备。整个作业机构运动过程中，第一连杆21受拉力，避免了细长杆受压引起的不稳定。第二连杆22具有拐角，在拐角处布置铰接点E，拐角点靠近作业平台3一侧。该设计既增加了活塞缸、连杆的布置空间，又提升了第二连杆22承载的稳定性。作业平台3拐角向外伸出，有利于提高作业平台3变幅的最大深度。第一中间部件5为对称布置的两根连杆，参见图5。
上述技术方案，通过设计多杆变幅机构，利用变幅油缸很小的运动行程，实现了作业平台3很大的变幅范围，比如大于150°的变幅范围；同时实现了作业平台3在 变幅过程中自动调平。该机构设计巧妙、布局紧凑，作业平台3在狭小的隧道空间内，可以到达隧道下部盲区，实现隧道全断面检测作业要求。
本公开另一实施例还提供一种隧道检修车辆，包括本公开任一技术方案提供的变幅装置。
在本公开的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“前”、“后”、“左”、“右”、“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。
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：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；而不脱离本公开技术方案的精神，其均应涵盖在本公开请求保护的技术方案范围当中。

Claims (11)

  1. 一种变幅装置，其特征在于，包括：
    固定部(1)；
    连接部(2)，与所述固定部(1)连接；
    作业平台(3)，通过所述连接部(2)与所述固定部(1)连接；以及
    驱动机构(4)，一端与所述连接部(2)可转动连接，另一端通过第一中间部件(5)与所述连接部(2)可转动连接；所述驱动机构(4)的另一端还通过第二中间部件(6)与所述固定部(1)可转动连接。
  2. 根据权利要求1所述的变幅装置，其特征在于，所述第一中间部件(5)与所述连接部(2)的可转动位置位于所述连接部(2)与所述固定部(1)可转动连接位置以及所述驱动机构(4)的一端与所述连接部(2)的可转动连接位置之间。
  3. 根据权利要求1所述的变幅装置，其特征在于，所述驱动机构(4)包括：
    活塞缸，所述活塞缸的一端与所述连接部(2)可转动连接，所述活塞缸的另一端通过所述第一中间部件(5)与所述连接部(2)可转动连接，所述活塞缸的另一端还通过所述第二中间部件(6)与所述固定部(1)可转动连接。
  4. 根据权利要求1所述的变幅装置，其特征在于，所述第一中间部件(5)和/或所述第二中间部件(6)包括杆件。
  5. 根据权利要求1所述的变幅装置，其特征在于，所述连接部(2)包括：
    第一连杆(21)；以及
    第二连杆(22)；
    其中，所述固定部(1)、所述第一连杆(21)、所述第二连杆(22)和所述作业平台(3)形成四连杆机构。
  6. 根据权利要求5所述的变幅装置，其特征在于，所述第一连杆(21)和所述第二连杆(22)都是弯折的，所述驱动机构(4)设于所述第二连杆(22)内凹的一 侧。
  7. 根据权利要求6所述的变幅装置，其特征在于，所述驱动机构(4)的一端与所述第二连杆(22)的弯折处可转动连接。
  8. 根据权利要求5所述的变幅装置，其特征在于，所述第一连杆(21)与所述固定部(1)的可转动连接处、所述第一连杆(21)与所述作业平台(3)的可转动连接处、所述第二连杆(22)与所述作业平台(3)的可转动连接处、所述第二连杆(22)与所述固定部(1)的可转动连接处形成平行四边形。
  9. 根据权利要求1所述的变幅装置，其特征在于，所述固定部(1)包括：
    伸缩臂(11)；以及
    臂头(12)，与所述伸缩臂(11)固定相连；
    其中，所述驱动机构(4)的另一端通过所述第二中间部件(6)与所述臂头(12)可转动连接，所述作业平台(3)通过所述连接部(2)与所述臂头(12)可转动连接。
  10. 根据权利要求1所述的变幅装置，其特征在于，所述作业平台(3)与所述连接部(2)可转动连接。
  11. 一种隧道检修车辆，其特征在于，包括权利要求1-10任一所述的变幅装置。
PCT/CN2018/099393 2017-11-28 2018-08-08 变幅装置及隧道检修车辆 WO2019001589A1 (zh)

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