WO2017215412A1 - 折叠式滑移转向装载机工作装置 - Google Patents

折叠式滑移转向装载机工作装置 Download PDF

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Publication number
WO2017215412A1
WO2017215412A1 PCT/CN2017/085487 CN2017085487W WO2017215412A1 WO 2017215412 A1 WO2017215412 A1 WO 2017215412A1 CN 2017085487 W CN2017085487 W CN 2017085487W WO 2017215412 A1 WO2017215412 A1 WO 2017215412A1
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Prior art keywords
point
boom
folding
cylinder
arm
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PCT/CN2017/085487
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English (en)
French (fr)
Inventor
毛江霞
钱珍宝
汪琰
周良稷
丁亮
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江苏柳工机械有限公司
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Publication of WO2017215412A1 publication Critical patent/WO2017215412A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/34—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/34—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines
    • E02F3/3414—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines the arms being pivoted at the rear of the vehicle chassis, e.g. skid steer loader
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/422—Drive systems for bucket-arms, front-end loaders, dumpers or the like

Definitions

  • the invention relates to a working device of a loader, in particular to a working device of a folding type skid steer loader, belonging to the technical field of engineering machinery.
  • the skid steer loader is a small, compact loader whose unloading height and unloading distance are important technical parameters for the performance of the skid steer loader.
  • the working device of the skid steer loader mainly has radial lifting and vertical lifting.
  • the radial lifting working device has simple structure and high reliability, but the unloading height and the unloading distance are small.
  • the unloading height and unloading distance of the vertical lifting work device have been improved, but the increase is not large.
  • the skid steer loader working device described in the patent number ZL201420680424.2 has an improved unloading height and unloading distance, but the same increase is limited.
  • the present invention has been made to overcome the above-mentioned shortcomings of the prior art, and aims to provide a folding type skid steer loader working device which is simple in operation, convenient in maintenance, and can be adapted to different working conditions.
  • a folding type skid steer loader working device comprises a quick change device, a dump cylinder, a boom, a boom cylinder and a frame;
  • the boom comprises a left structure and symmetrically arranged on both sides of the frame a boom and a right boom; the front ends of the left and right booms are respectively hinged to the quick change device, and the hinge axis is projected to a point B on the plane of the one side boom; the left and right booms
  • the tail portions are respectively hinged to the frame, and the hinge shaft is projected to a point on the plane of the one side boom;
  • the dump cylinder and the boom cylinder are both composed of two left and right cylinders, and one end of the dump cylinder and the quick change device Side hinge, the projection point of the hinge shaft is point A; the other end of the bucket cylinder is respectively hinged with the left boom and the right boom, and the projection point of the hinge shaft is point C; the one end of the boom cylinder is respectively associated with the left boom and The right boom is hinged, and
  • Point B is a rotary motion.
  • the initial state of the working device means that the bottom of the working device is in contact with the ground; Or when the work implement is installed on the working device, the working device is initially placed on the ground as the initial state of the working device.
  • the minimum distance of the reinforcing member to the K point is greater than the farthest distance from the K point to the top of the cab.
  • the maximum distance of the reinforcing member to the K point is smaller than the distance from the K point to the E point.
  • the reinforcing member is located above the top of the cab when the working device is in an initial state.
  • a connecting member is disposed between the folding arms of the left and right booms, and a projection point of the connecting member is located below the dump cylinder.
  • the boom cylinder is in an intermediate working state in the initial state of the working device.
  • the active arm and the folding boom are in a straight line.
  • the utility model has the beneficial effects that the working device of the invention can reach the unloading height and the unloading distance required for the work according to different working conditions, the hydraulic pipeline arrangement is easy, the reliability is high, the maintenance is convenient, and the whole machine length and the whole machine height parameter are not affected. The feasibility is higher.
  • Figure 1 is a schematic view of the present invention
  • Figure 2 is a schematic perspective view of the oblique axis of the present invention.
  • Figure 3 is a schematic view of the working condition of the present invention.
  • Figure 4 is a schematic view of the second working condition of the present invention.
  • Figure 5 is a schematic view showing the state of maximum unloading height of the present invention.
  • Figure 6 is a schematic view showing the state of maximum unloading distance of the present invention.
  • a folding type skid steer loader working device comprises a quick change device 1, a dump cylinder 2, a boom 3, a boom cylinder 4 and a frame 5;
  • the boom 3 includes Left and right booms of the same structure and symmetrically arranged on both sides of the frame 5; the front ends of the left and right booms are respectively hinged with the quick change device 1, and the hinge axis is projected to the plane of one side of the boom The upper side is point B; the tails of the left and right moving arms are respectively hinged to the frame 5, and the hinge axis is projected to a point on the plane of the one side arm;
  • the dump cylinder 2 and the boom cylinder 4 are both It is composed of two left and right oil cylinders, and one end of the dump cylinder 2 is hinged to both sides of the quick change device 1, and the hinge shaft
  • the projection point is point A; the other end of the dump cylinder 2 is hinged with the left and right booms respectively, and the projection point of the hinge shaft is point C; the end of the
  • the boom cylinder 4 may not work, and the folding boom 32 and the quick change device 1 perform corresponding movements, and the working device at this time is a radial lifting working device. Since the reinforcing member 8 is located above the top of the cab, the center of motion of the folding boom 32 is advanced and raised relative to the center of motion of the conventional work apparatus, thereby increasing the unloading height and the unloading distance.
  • the active arm 31, the folding boom 32 and the quick change device 1 perform corresponding movements.
  • the boom cylinder 4 Due to the initial state of the working device, the boom cylinder 4 is in an intermediate working state, that is, When the boom cylinder 4 can be extended or contracted, and the minimum distance of the reinforcing member 8 to the K point is greater than the farthest distance from the K point to the top of the cab, the active arm 31 is rounded around the K point.
  • the folding boom 32 performs a front and rear circular motion around the E point, and the working device at this time is a folding working device, which meets the requirements of the working condition requiring high unloading height and unloading distance.
  • the boom cylinder 4 is extended to the maximum stroke, as shown in FIG. 5 and FIG.
  • the arm 31 and the folding boom 32 can be on the same line, significantly increasing the unloading height and the unloading distance.
  • the working device is mostly a structural member, the maximum distance of the reinforcing member 8 to the K point is smaller than the distance from the K point to the E point, and the manufacturing, assembly and maintenance are convenient, and the arrangement of the hydraulic pipeline is facilitated, and the left and right booms are
  • the fixing member 8 is integrally fixed between the active arms 31 of the left and right booms, and the connecting members 6 are disposed on the folding arms 32 of the left and right booms. Between the projection points of the connecting member 6 is located below the dump cylinder 2, and the stability of the entire working device is sufficiently ensured. It is the characteristics of the folding work device that ensures that the turning radius of the whole machine is small, and the height of the whole machine is not increased.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

一种折叠式滑移转向装载机工作装置，包括快换装置(1)、翻斗油缸(2)、动臂(3)、动臂油缸(4)和车架(5)，动臂(3)分别与快换装置(1)以及车架(5)铰接，翻斗油缸(2)一端与快换装置(1)铰接，另一端与动臂(3)铰接，动臂油缸(4)一端与动臂(3)铰接，另一端与车架(5)铰接，动臂(3)分别包括相互铰接的主动臂(31)和折叠动臂(32)，主动臂(31)与折叠动臂(32)之间设有与其铰接的折叠油缸(7)，左、右动臂(3)的主动臂(31)之间设有不与驾驶室干涉的强化构件(8)。

Description

折叠式滑移转向装载机工作装置 技术领域
本发明涉及一种装载机的工作装置，特别涉及一种折叠式滑移转向装载机工作装置，属于工程机械技术领域。
背景技术
滑移转向装载机是一种体积小、结构紧凑的装载机，其卸载高度和卸载距离都是体现滑移转向装载机性能非常重要的技术参数。目前滑移转向装载机工作装置主要有径向举升和垂直举升，径向举升工作装置结构简单，可靠性高，但卸载高度和卸载距离较小。垂直举升工作装置的卸载高度和卸载距离有所提高，但提高幅度不大。专利号ZL201420680424.2所描述的滑移转向装载机工作装置，对卸载高度和卸载距离有所提高，但同样提高幅度有限。专利号ZL201520467789.1所描述的伸缩式滑移转向装载机工作装置，虽然明显提高了卸载高度和卸载距离，但伸缩油缸的放置及制造不易，翻斗油缸管路不易布置，且为伸缩运动提供润滑的耐磨板磨损严重，更换困难，伸缩结构的布置无形中会增加整机长度，影响滑移转向装载机的特性。
发明内容
本发明为了克服上述现有技术存在的缺点提出的，其旨在提供一种操作简单、维修方便、能适应不同工况的折叠式滑移转向装载机工作装置。
技术方案：一种折叠式滑移转向装载机工作装置，包括快换装置、翻斗油缸、动臂、动臂油缸和车架；所述动臂包括结构相同且对称布置于车架两侧的左动臂和右动臂；所述左动臂和右动臂的前端分别与快换装置铰接，其铰接轴投影至一侧动臂所在平面上为B点；所述左动臂和右动臂的尾部分别与车架铰接，此铰接轴投影至一侧动臂所在平面上为K点；所述翻斗油缸和动臂油缸均由左右两只油缸构成，所述翻斗油缸一端与快换装置两侧铰接，铰接轴的投影点为A点；所述翻斗油缸另一端分别与左动臂和右动臂铰接，铰接轴的投影点为C点；所述动臂油缸一端分别与左动臂和右动臂铰接，铰接轴的投影点为G点；所述动臂油缸另一端分别铰接于车架两侧，铰接轴的投影点为H点；所述左动臂和右动臂分别包括主动臂和折叠动臂，所述主动臂与折叠动臂铰接，铰接轴的投影点为E点；所述主动臂与折叠动臂之间设有折叠油缸，所述折叠油缸由左右两只油缸构成，所述折叠油缸两端分别与主动臂和折叠动臂铰接，其铰接轴的投影点分别为F、D点；所述左、右动臂的主动臂之间设有强化构件，所述强化构件在其运动范围内不与驾驶室干涉。此工作装置进行工作时，通过动臂油缸的伸缩运动使得主动臂围绕K点作旋转运动，通过折叠油缸的伸缩使折叠动臂围绕E点作旋转运动，通过翻斗油缸的伸缩使得快换装置围绕B点作旋转运动。此工作装置初始状态是指工作装置底部与地面接触； 或者工作装置上安装有工作器具时，工作器具平稳放置在地面时为工作装置初始状态。
优选项，为了提高作业范围，所述强化构件至K点的最小距离大于K点至驾驶室顶部最远的距离。
优选项，为了提高制造性和维修性，所述强化构件至K点的最大距离小于K点至E点的距离。
优选项，为了能满足不同工况的需求，所述工作装置初始状态时，所述强化构件位于驾驶室顶部的上方。
优选项，为了提高所述工作装置的强度、刚度，所述左、右动臂的折叠动臂之间设有连接构件，所述连接构件的投影点位于翻斗油缸下方。
优选项，为了提高卸载高度和卸载距离，所述工作装置初始状态时，所述动臂油缸处于中间工作状态。所述动臂油缸伸出至最大行程时，主动臂和折叠动臂呈一条直线。
有益效果：本发明的工作装置能够根据不同工况需要，达到工作所需的卸载高度和卸载距离，液压管路布置较易，可靠性高，维修方便，不影响整机长度和整机高度参数，可行性较高。
附图说明
图1为本发明主示意图；
图2为本发明斜轴测示意图；
图3为本发明工况一示意图；
图4为本发明工况二示意图；
图5为本发明最大卸载高度状态示意图；
图6为本发明最大卸载距离状态示意图；
具体实施方式
下面结合附图对本发明的具体实施方式作进一步详细的说明。
如图1、图2所示，一种折叠式滑移转向装载机工作装置，包括快换装置1、翻斗油缸2、动臂3、动臂油缸4和车架5；所述动臂3包括结构相同且对称布置于车架5两侧的左动臂和右动臂；所述左动臂和右动臂的前端分别与快换装置1铰接，其铰接轴投影至一侧动臂所在平面上为B点；所述左动臂和右动臂的尾部分别与车架5铰接，此铰接轴投影至一侧动臂所在平面上为K点；所述翻斗油缸2和动臂油缸4均由左右两只油缸构成，所述翻斗油缸2一端与快换装置1两侧铰接，铰接轴 的投影点为A点；所述翻斗油缸2另一端分别与左动臂和右动臂铰接，铰接轴的投影点为C点；所述动臂油缸4一端分别与左动臂和右动臂铰接，铰接轴的投影点为G点；所述动臂油缸4另一端分别铰接于车架5两侧，铰接轴的投影点为H点；所述左动臂和右动臂分别包括主动臂31和折叠动臂32，所述主动臂31与折叠动臂32铰接，铰接轴的投影点为E点；所述主动臂31与折叠动臂32之间设有折叠油缸7，所述折叠油缸7由左右两只油缸构成，所述折叠油缸7两端分别与主动臂31和折叠动臂32铰接，其铰接轴的投影点分别为F、D点；所述左、右动臂的主动臂31之间设有强化构件8，所述强化构件8在其运动范围内不与驾驶室干涉。
如图3所示，此工况下动臂油缸4可不工作，折叠动臂32和快换装置1进行相应运动，此时的工作装置实为径向举升工作装置。由于强化构件8位于驾驶室顶部的上方，折叠动臂32的运动中心相对于常规工作装置的运动中心前移并提高，从而提高卸载高度和卸载距离。
如图4所示，此工况下主动臂31、折叠动臂32和快换装置1都进行相应运动，由于所述工作装置初始状态时，所述动臂油缸4处于中间工作状态，即此时的动臂油缸4既可以伸长作业也可以收缩作业，且所述强化构件8至K点的最小距离大于K点至驾驶室顶部最远的距离，则主动臂31围绕K点进行上下圆弧运动，所述折叠动臂32围绕E点进行前后圆弧运动，此时的工作装置即为折叠式工作装置，满足卸载高度和卸载距离要求高的工况需求。因为D、F点间的距离大于D、E点间的距离，且大于E、F点间的距离，所述动臂油缸4伸出至最大行程时，如图5、图6所示，主动臂31与折叠动臂32能在同一直线上，显著提高卸载高度和卸载距离。
由于此工作装置多为结构件，所述强化构件8至K点的最大距离小于K点至E点的距离，制造、装配、维修方便，便于液压管路的布置，所述左、右动臂之间通过强化构件8、连接构件6固定成一体，所述强化构件8设置于左、右动臂的主动臂31之间，所述连接构件6设置于左、右动臂的折叠动臂32之间，所述连接构件6的投影点位于翻斗油缸2下方，整个工作装置的稳定性得到充分保证。正是折叠式工作装置的特点，保证整机的转弯半径较小，其整机高度未增加。
上面虽然结合实施例对本发明作了详细的说明，但是所述技术领域的技术人员能够理解，在不脱离本发明宗旨的前提下，还可以对上述实施例进行变更或改变等，仍落在本发明的保护范围内。

Claims (7)

  1. 一种折叠式滑移转向装载机工作装置，包括快换装置(1)、翻斗油缸(2)、动臂(3)、动臂油缸(4)和车架(5)；所述动臂(3)包括结构相同且对称布置于车架(5)两侧的左动臂和右动臂；所述左动臂和右动臂的前端分别与快换装置(1)铰接，其铰接轴投影至一侧动臂所在平面上为B点；所述左动臂和右动臂的尾部分别与车架(5)铰接，此铰接轴投影至一侧动臂所在平面上为K点；所述翻斗油缸(2)和动臂油缸(4)均由左右两只油缸构成，所述翻斗油缸(2)一端与快换装置(1)两侧铰接，铰接轴的投影点为A点；所述翻斗油缸(2)另一端分别与左动臂和右动臂铰接，铰接轴的投影点为C点；所述动臂油缸(4)一端分别与左动臂和右动臂铰接，铰接轴的投影点为G点，所述动臂油缸(4)另一端分别铰接于车架(5)两侧，铰接轴的投影点为H点；其特征在于：所述左动臂和右动臂分别包括主动臂(31)和折叠动臂(32)，所述主动臂(31)与折叠动臂(32)铰接，铰接轴的投影点为E点；所述主动臂(31)与折叠动臂(32)之间设有折叠油缸(7)，所述折叠油缸(7)由左右两只油缸构成，所述折叠油缸(7)两端分别与主动臂(31)和折叠动臂(32)铰接，其铰接轴的投影点分别为F、D点；所述左、右动臂的主动臂(31)之间设有强化构件(8)，所述强化构件(8)在其运动范围内不与驾驶室干涉。
  2. 根据权利要求1所述的折叠式滑移转向装载机工作装置，其特征在于：所述强化构件(8)至K点的最小距离大于K点至驾驶室顶部最远的距离。
  3. 根据权利要求2所述的折叠式滑移转向装载机工作装置，其特征在于：所述强化构件(8)至K点的最大距离小于K点至E点的距离。
  4. 根据权利要求3所述的折叠式滑移转向装载机工作装置，其特征在于：所述工作装置初始状态时，所述强化构件(8)位于驾驶室顶部的上方。
  5. 根据权利要求4所述的折叠式滑移转向装载机工作装置，其特征在于：所述动臂油缸(4)伸出至最大行程时，主动臂(31)和折叠动臂(32)呈一条直线。
  6. 根据权利要求1至5中任一项所述的折叠式滑移转向装载机工作装置，其特征在于：所述左、右动臂的折叠动臂(32)之间设有连接构件(6)，所述连接构件(6)的投影点位于翻斗油缸(2)下方。
  7. 根据权利要求6所述的折叠式滑移转向装载机工作装置，其特征在于：所述工作装置初始状态时，所述动臂油缸(4)处于中间工作状态。
PCT/CN2017/085487 2016-06-13 2017-05-23 折叠式滑移转向装载机工作装置 WO2017215412A1 (zh)

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