WO2021098027A1 - 带横移辊的低损耗履带 - Google Patents

带横移辊的低损耗履带 Download PDF

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Publication number
WO2021098027A1
WO2021098027A1 PCT/CN2020/000280 CN2020000280W WO2021098027A1 WO 2021098027 A1 WO2021098027 A1 WO 2021098027A1 CN 2020000280 W CN2020000280 W CN 2020000280W WO 2021098027 A1 WO2021098027 A1 WO 2021098027A1
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Prior art keywords
crawler belt
chain plate
loss
crawler
traverse
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PCT/CN2020/000280
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English (en)
French (fr)
Inventor
马鸿绪
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马鸿绪
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Application filed by 马鸿绪 filed Critical 马鸿绪
Priority to DE212020000652.0U priority Critical patent/DE212020000652U1/de
Publication of WO2021098027A1 publication Critical patent/WO2021098027A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D55/00—Endless track vehicles
    • B62D55/08—Endless track units; Parts thereof
    • B62D55/18—Tracks
    • B62D55/20—Tracks of articulated type, e.g. chains
    • B62D55/205—Connections between track links
    • B62D55/21—Links connected by transverse pivot pins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D55/00—Endless track vehicles
    • B62D55/08—Endless track units; Parts thereof
    • B62D55/18—Tracks
    • B62D55/26—Ground engaging parts or elements

Definitions

  • a new type of crawler used for mechanical walking A new type of crawler used for mechanical walking.
  • crawler walking mechanisms In order to reduce the pressure on the road and enhance the ability to overcome obstacles, walking machinery often uses crawler walking mechanisms.
  • the traditional crawler mechanism has a big shortcoming.
  • the friction between the crawler chain plate and the road surface is very large, which will not only cause serious damage to the road surface, but also the crawler chain plate itself. It will also be severely worn and shortened, so that the application range of the crawler walking mechanism is limited to a certain extent.
  • the axial direction of the traverse roller is consistent with the direction of travel of the crawler.
  • the traverse roller plays a longitudinal grip.
  • the traverse roller is holding the ground at the same time. It is also used for lateral rolling, which not only avoids damage to the road, but also avoids the wear of the chain plate itself. Compared with the traditional crawler, the loss is much lower.
  • the sliding bearing made of ultra-high molecular weight polyethylene UPE or other self-lubricating materials is press-fitted into the center hole of the traverse roller to reduce the frictional resistance when the traverse roller rotates.
  • the pin used for the installation of the traverse roller is made of MC oil-containing nylon or other self-lubricating materials, no lubricating oil is required, maintenance is reduced, failures are reduced, and manufacturing costs are reduced.
  • Adjacent rows of traverse rollers are arranged in a staggered arrangement along the travel direction of the crawler belt to improve the continuity of the contact between the traverse rollers and the road surface and improve the stability of mechanical walking.
  • a new problem is how to prevent the side-slip defect of the walking machine when walking on the road with large lateral inclination.
  • This problem can be additionally installed on the side of the crawler.
  • the slippery safety wheels can be implemented, and the safety wheels can be made of rubber wheels on the market. This article will not go into details.
  • Fig. 1 is a front view of the new crawler mechanism and a three-dimensional enlarged view of the chain plate unit group.
  • Figure 2 is a three-dimensional assembly view and an exploded view of the chain plate unit group.
  • Fig. 3 is a schematic diagram of the chain plate unit group being connected to form a crawler belt by a chain pin.
  • Fig. 4 is a schematic diagram of the meshing of the drive sprocket ring gear and the track chain plate unit group.
  • Fig. 5 is a schematic diagram of the traverse rollers of adjacent columns being misaligned along the traveling direction of the crawler.
  • Figure 6 is a front view, a top view, and a right cross-sectional view of the mechanical walking system composed of the new crawler.
  • the walking mechanism composed of the crawler of the present utility model includes: a guide wheel 1, a supporting wheel 2, a walking wheel 3, a driving sprocket 4, and a chain plate unit group 5, forming a crawler running system.
  • the drive sprocket rotates to drive the crawler to run, realizing the mechanical walking function.
  • the core technology of the present invention lies in the design of the chain plate unit group 5.
  • the arrow at the bottom of Figure 1 points to a three-dimensional enlarged view of a chain plate unit group in the new crawler.
  • Area I in the figure is a three-dimensional assembly diagram of the chain plate unit group 5; Area II is an exploded view of the chain plate unit group, including: chain plate a, traverse roller b, and shaft end baffle lock nut c. Shaft end baffle d, shaft end baffle locking bolt e, sliding bearing f, pin shaft g.
  • the design, material selection and assembly steps of each part in the chain plate unit group are as follows:
  • the chain plate a adopts a die-casting structure, and the material can be made of high-strength polyoxymethylene POM, or other die-casting materials with higher strength and good wear resistance.
  • the travel wheel guide baffle is cast on the chain plate a to restrain the travel wheel from running off and not falling off the chain.
  • Two pairs of adjacent support walls are cast under the chain plate a to install the traverse roller pin shaft g.
  • the two pairs of support walls are arranged in a staggered and antisymmetric arrangement, and the middle of the front support wall of each pair of support walls is cast with a circular pin Hole, the middle part of the rear support wall is cast with a round missing pin hole, and the hook and bolt hole required for installing the shaft end baffle d are also cast above the round pin hole of each front support wall.
  • the pin shaft g can be made of MC oil-containing nylon, or other self-lubricating materials.
  • One end of the pin shaft g is machined into a round stud head, which is matched with the round hole in the middle of each rear support wall under the chain plate a to prevent Pin rotation and axial positioning.
  • the traverse roller b can be made of rubber or other elastic and wear-resistant materials to reduce the impact on the road surface and ensure the service life of the traverse roller itself.
  • the sliding bearing f is made of ultra-high molecular weight polyethylene UPE or other self-lubricating materials, and its end flange is used for axial positioning and axial lubrication.
  • the shaft end baffle d is made of stainless steel sheet stamping technology.
  • the assembly procedure of the chain plate unit group is: first press the two sliding bearings f from the two ports of the center hole of the traverse roller b respectively, and put the traverse roller pressed into the sliding bearing into a pair under the chain plate a. In the middle of the support wall, and align the pin hole, insert the rounded column head end of a pin shaft g from the round pin hole of the front support wall, pass through the sliding bearing in the traverse roller, and then insert into the rounded hole of the rear support wall
  • the pin hole makes the two ends of the pin shaft g flush with the outer side of the support wall, and the supported traverse roller rotates freely, and then a piece of shaft end baffle d is clamped on the outside of the circular pin hole of the front support wall to block the pin Slide the shaft g out, and finally install the lock bolt e and lock nut c to tighten the shaft end baffle d.
  • a chain plate unit group
  • a plurality of assembled chain plate unit groups are connected with stainless steel chain pins to form a closed crawler chain, which constitutes the "low-loss crawler with traverse roller" of the product of the present invention.
  • FIG. 3 in the figure III area is a split view of the chain plate unit group 5 and the stainless steel chain pin 6; the IV area shows a partial view of a crawler belt connected by a plurality of chain plate unit groups 5 through a plurality of chain pins 6.
  • FIG 4 is a schematic diagram of the engagement between the drive sprocket ring gear and the track chain plate unit group.
  • Each tooth groove arc surface of the sprocket ring gear corresponds to the outer arc of the pin hole wall of each chain plate unit group.
  • the faces are meshing.
  • Fig. 5 is a schematic diagram of the traverse rollers of adjacent columns in a staggered arrangement along the traveling direction of the crawler.
  • the advantage of the misalignment arrangement is: for the road surface, it is equivalent to the longitudinal spacing of the traverse rollers is reduced.
  • set the spacing of a single row of traverse rollers as S when two adjacent rows of traverse rollers are misaligned in the longitudinal direction
  • the longitudinal spacing of adjacent rows of traverse rollers is equivalent to 0.6S or less, thereby improving the continuity of the contact between the traversing rollers and the road surface. Due to the elasticity of the traversing rollers, the reduction of the longitudinal spacing can make the walking wheels on the track When walking on the top, the elastic jump caused by the support vacancy is reduced, and the smoothness of the mechanical operation is improved.
  • FIG. 6 is a front view, a top view, and a right cross-sectional view of the mechanical walking system composed of the new type of crawler.
  • L refers to the reference position of the anti-skid safety wheel.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Escalators And Moving Walkways (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

一种带横移辊（b）的低损耗履带，在每节履带链板（a）接触路地的一面安装可使链板（a）作横向移动的横移辊（b），组成链板单元组（5），由多个相同的链板单元组（5）连接成闭合履带环链，在链轮（4）驱动下运行；横移辊（b）的轴线方向与履带的行进方向一致，当机械沿直线行走时横移辊（b）起到纵向抓地作用，当机械转弯行走、或原地转向时横移辊（b）在抓地作用的同时又作横向移动，既避免对路面的破坏，又避免链板（a）自身的磨损，与传统履带相比损耗低。

Description

带横移辊的低损耗履带 技术领域
一种机械行走所用的新型履带。
背景技术
行走机械为了减轻对路面的压强和增强越障的能力，常常采用履带式行走机构。但是传统履带机构存在一个很大的缺点，就是当机械转弯行走时，尤其是在原地转向时，履带链板与路面之间的摩擦力很大，不仅会使路面受到严重破坏，履带链板自身也会受到严重磨损，寿命减短，至使履带式行走机构的应用范围受到一定程度限制。
发明内容
本新型履带的技术特征是：
1、在每节履带链板接触路地的一面安装可使链板作横向移动的横移辊，组成链板单元组，由多个相同的链板单元组连接成闭合履带环链，在链轮驱动下运行。履带由横移辊承担接触路面，支撑机械重量，完成抓地行走功能。
2、横移辊的轴线方向与履带的行进方向一致，当机械沿直线行走时横移辊起到纵向抓地作用，当机械转弯行走、或原地转向时横移辊在抓地作用的同时又作横向滚动，既避免对路面的破坏，又避免链板自身的磨损，与传统履带相比损耗低很多。
3、横移辊中心孔内压入装配由超高分子量聚乙烯UPE，或其它自润滑材料制造的滑动轴承，以减小横移辊转动时的摩擦阻力。
4、安装横移辊所用的销轴选用MC含油尼龙，或其它自润滑材料制造，无需加润滑油，减免维修，减少故障，降低制造成本。
5、相邻列的横移辊沿履带行进方向采取错位布置，以改善横移辊与路面接触的连续性，提高机械行走的平稳性。
随着人类科技的进步，高强度聚甲醛POM，MC含油尼龙，超高分子量聚乙烯UPE等新型材料的上市，使本新型履带的设计得以实现结构简单，制造成本低，使用寿命长，制造出实用新型产品。
履带链板安装横移辊后，带来的一个新问题，就是如何防止行走机械在侧向倾斜度较大的路面上行走时发生侧滑的缺陷，此问题可以在履带旁侧另外设置防侧滑的安全轮来实现，安全轮选用市场上成品橡胶轮即可，本文不作赘述。
附图说明
图1是本新型履带机构的主视图和链板单元组的三维立体放大图。
图2是链板单元组的三维立体组装图和爆炸图。
图3是链板单元组通过链销连接成履带的示意图。
图4是驱动链轮齿圈与履带链板单元组相啮合的示意图。
图5是相邻列的横移辊沿履带行进方向错位布置的示意图。
图6是由本新型履带构成的机械行走系统的主视图，俯视图，右剖视图。
具体实施方式
以下结合附图对本新型履带的核心技术部件链板单元组的实施方式作详细说明。对于履带运行系统的常规结构和常规零部件只作必要简述。
见附图1，由本实用新型履带组成的行走机构包括：导向轮1、托轮2、行走轮3、驱动链轮4、链板单元组5，构成履带运行系统。驱动链轮旋转带动履带运行，实现机械行走功能。本发明的核心技术在于链板单元组5的设计，附图1下方箭头所指引的是新型履带中一个链板单元组的三维立体放大图。
见附图2，图中I区是链板单元组5的三维立体组装图；II区是链板单元组的爆炸图，包括：链板a、横移辊b、轴端挡板锁紧螺母c、轴端挡板d、轴端挡板锁紧螺栓e、滑动轴承f、销轴g。链板单元组中每个零件的设计、选材和组装步奏如下：
1、链板a采用压铸成形结构，材质可选用高强度聚甲醛POM，或其它强度较高，耐磨性好的压铸成形材料制造。
2、链板a上面铸有行走轮导向挡板，用以约束行走轮不跑偏，不脱链。
3、链板a下方铸有安装横移辊销轴g所需两对相邻的支撑壁，两对支撑壁成错位和反对称布置，每对支撑壁的前支撑壁中部铸有圆形销孔，后支撑壁中部铸有圆缺形销孔，每个前支撑壁圆形销孔上方还铸有安装轴端挡板d所需的卡钩和螺栓孔。
4、销轴g可选用MC含油尼龙，或其它自润滑材料制造，销轴g一端加工成圆缺形柱头，配合链板a下方每个后支撑壁中部的圆缺形销孔，用以防止销轴转动和轴向定位。
5、横移辊b可选用橡胶，或其它弹性耐磨材料制造，以减轻对路面的冲击，并保证横移辊自身的使用寿命。
6、滑动轴承f选用超高分子量聚乙烯UPE，或其它自润滑材料制造，其尾端法兰用作轴向定位和轴向润滑。
7、轴端挡板d选用不锈钢薄板冲压工艺制造。
8、链板单元组的组装步奏是：先将2个滑动轴承f分别从横移辊b中心孔的两端口压入，把压入滑动轴承的横移辊放入链板a下方一对支撑壁中间，并对准销孔，将一个销轴g的圆缺形柱头端从前支撑壁的圆形销孔插入，穿过横移辊中的滑动轴承，再插入后支撑壁的圆缺形销孔，使销轴g两端面与支撑壁外侧面平齐，被支撑好的横移辊转动自如，然后将一片轴端挡板d卡压在前支撑壁圆形销孔外侧，以阻挡销轴g的滑出，最后安装锁紧螺栓e和锁紧螺母c将轴端挡板d紧固。按照同一操作过程安装链板a下方相邻的另一只横移辊。至此，一个链板单元组组装完毕。
将多个组装好的链板单元组用不锈钢链销连接成闭合履带环链，就构成了本实用新型产品“带横移辊的低损耗履带”。
见附图3，图中III区是链板单元组5和不锈钢链销6的拆分图；IV区示意由多个链板单元组5通过多个链销6连接成履带的局部图。
见附图4，是驱动链轮齿圈与履带链板单元组相啮合的示意图，链轮齿圈的每个齿槽弧面对应与每个链板单元组连接销孔壁的外圆弧面相啮合。
见附图5，是相邻列的横移辊沿履带行进方向采取错位布置的示意图。错位布置的优点是：对于路面来说，相当于横移辊的纵向间距减小了，如图所示，设单列横移辊的间距为S，当两列相邻的横移辊沿纵向错位布置后，相邻列横移辊的纵向间距相当于0.6S或更小，从而改善横移辊与路面接触的连续性，由于横移辊具有弹性，纵向间距的减小可以使行走轮在履带上面行走时减小因支撑空缺产生的弹性跳动，提高机械运行的平稳性。
见附图6，是由本新型履带构成的机械行走系统的主视图、俯视图、右剖视图，图中L所指是防侧滑安全轮的参考位置。

Claims (5)

  1. 带横移辊的低损耗履带，其特征是：在每节履带链板接触路地的一面安装可使链板作横向移动的横移辊，组成链板单元组，由多个相同的链板单元组连接成闭合履带环链。
  2. 根据权利要求1所述带横移辊的低损耗履带，其特征是：横移辊的轴线方向与履带行进方向一致。
  3. 根据权利要求1所述带横移辊的低损耗履带，其特征是：横移辊中心孔内压入装配由超高分子量聚乙烯UPE，或其它自润滑材料制造的滑动轴承。
  4. 根据权利要求1所述带横移辊的低损耗履带，其特征是：安装横移辊所用的销轴选用MC含油尼龙，或其它自润滑材料制造。
  5. 根据权利要求1所述带横移辊的低损耗履带，其特征是：相邻列的横移辊沿履带行进方向采取错位布置。
PCT/CN2020/000280 2019-11-19 2020-11-13 带横移辊的低损耗履带 WO2021098027A1 (zh)

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DE212020000652.0U DE212020000652U1 (de) 2019-11-19 2020-11-13 Verlustarme Raupe mit einer Traversierrolle

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CN201921997847.6 2019-11-19
CN201921997847.6U CN212074243U (zh) 2019-11-19 2019-11-19 带横移辊的低损耗履带

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CN114348528A (zh) * 2022-01-26 2022-04-15 北京国承万通信息科技有限公司 皮带滚轴组合输送平台及其应用方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2751259A (en) * 1953-01-22 1956-06-19 Est Ets Sciences Tec Rolling device for vehicles of every kind
US6179073B1 (en) * 1998-05-28 2001-01-30 University Of South Florida Hybrid track for a vehicle
JP2003306178A (ja) * 2002-04-12 2003-10-28 Keiichi Umezawa 前後左右に移動可能な無限軌道走行装置
CN104228991A (zh) * 2014-06-17 2014-12-24 马鸿绪 带横移辊的履带
CN107539384A (zh) * 2017-09-12 2018-01-05 李从宾 一种适用于智能机器人的传动行走机构
CN110356483A (zh) * 2019-07-19 2019-10-22 华俊 一种四轴驱动履带轮式叉车

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2751259A (en) * 1953-01-22 1956-06-19 Est Ets Sciences Tec Rolling device for vehicles of every kind
US6179073B1 (en) * 1998-05-28 2001-01-30 University Of South Florida Hybrid track for a vehicle
JP2003306178A (ja) * 2002-04-12 2003-10-28 Keiichi Umezawa 前後左右に移動可能な無限軌道走行装置
CN104228991A (zh) * 2014-06-17 2014-12-24 马鸿绪 带横移辊的履带
CN107539384A (zh) * 2017-09-12 2018-01-05 李从宾 一种适用于智能机器人的传动行走机构
CN110356483A (zh) * 2019-07-19 2019-10-22 华俊 一种四轴驱动履带轮式叉车

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