WO2018145423A1 - 一种带齿轮的防缠绕履带驱动轮 - Google Patents

一种带齿轮的防缠绕履带驱动轮 Download PDF

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Publication number
WO2018145423A1
WO2018145423A1 PCT/CN2017/095014 CN2017095014W WO2018145423A1 WO 2018145423 A1 WO2018145423 A1 WO 2018145423A1 CN 2017095014 W CN2017095014 W CN 2017095014W WO 2018145423 A1 WO2018145423 A1 WO 2018145423A1
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Prior art keywords
chain
spring
trigger
gear
plate
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PCT/CN2017/095014
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English (en)
French (fr)
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原泉
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原泉
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Publication of WO2018145423A1 publication Critical patent/WO2018145423A1/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
    • B62D55/12—Arrangement, location, or adaptation of driving sprockets

Definitions

  • the invention belongs to the technical field of crawler drives, and in particular relates to an anti-winding crawler drive wheel with gears.
  • the crawler drive is used in all aspects of the engineering vehicle; the durability of the track of the engineering vehicle, the passability of any terrain and the destructiveness of the terrain are the main indicators for evaluating the quality of a crawler truck; in particular, it is driven by various plants.
  • the present invention contemplates a geared anti-winding track drive wheel that addresses the above problems.
  • the present invention discloses a geared anti-winding crawler drive wheel which is realized by the following technical solutions.
  • Anti-winding crawler drive wheel with gear which comprises: sharp corner, shell, side plate, top support, trigger hole, top shaft, card square hole, baffle sleeve, transition rod, inner block, Trigger lever, spring first support, card plate, spring, spring second support, rotating shaft, trigger gear, one-way gear, inner plate rotating sleeve, side top plate fixed shaft, hinge, gear notch, inner plate groove, side top plate fixed Hole, side top plate, track chain, chain top, chain bevel, leaf spring, wherein the casing is hollow in the middle, and the outer edge is evenly distributed with a plurality of sharp corners; side plates are respectively arranged on both sides of the casing, and the tip ends are respectively A top support is installed, and a top shaft is respectively mounted on both ends of the top support, and a trigger hole is formed in the groove between the sharp corner and the adjacent sharp corner, the top end of the sharp corner has a card square hole and is located at the lower side of the top support; One end of one end is respectively installed with a baffle s
  • One end of the plate; one end of the transition rod is installed in the middle of one end of the baffle sleeve by a hinge, and the other end is mounted with a trigger rod through a hinge, and the trigger rod is slidably installed in the trigger hole;
  • the first support of the spring is mounted on the inner edge surface of the casing, and the trigger rod Passing through the square hole on the first support of the spring, the second support of the spring is mounted on the trigger rod;
  • the spring is nested on the trigger rod, and one end of the spring is connected with the first support of the spring, and the other end is connected with the second support of the spring;
  • the ends are respectively fixed on the two side plates, the trigger gear is mounted on the rotating shaft, the one-way gear is mounted on the rotating shaft in a one-way transmission manner, and the one-way gear has teeth a wheel notch;
  • the trigger rod has teeth at one end and meshes with the trigger gear;
  • the card passes through the card square hole, and the card has teeth at one end
  • the sharp corner of the casing cooperates with the inclined surface of the chain, and the card passes through the square hole and passes through the top of the chain, and the top surface of the chain cooperates with the baffle sleeve and the inner plate.
  • the inner end of the inner panel has a bottom plate having an inner plate notch and the inner plate notch corresponding to the card square hole.
  • the above spring is a tension spring.
  • the above-mentioned housing corner angle is greater than 60 degrees.
  • the baffle sleeve and the transition bar hinge joint are hinged.
  • the crawler belt of the present invention is connected by the track chain through the rotating shaft, and the corner of the casing is caught in the chain slope of the track chain to drive the track to rotate, and the principle is similar to the principle of the conventional track and the driving wheel;
  • the body corner and the adjacent sharp corner are covered by the baffle sleeve, the inner panel and the side top plate to prevent the general weed or the wrap object from being wound around the sharp corners on the driving wheel, thereby causing the track wheel to fail; Passability.
  • the rotation of the driving wheel housing will drive the track movement through the sharp corner.
  • the top surface of the chain of the track chain exerts a downward force on the baffle sleeve and the inner plate to drive the baffle sleeve and the inner block.
  • the expandable body of the plate rotates about the top axis.
  • the inner panel can slide in the baffle sleeve, belonging to the telescopic structure, and the distance between the top shaft and the sharp bevel during the swinging process. Will decrease, this distance reduction is compensated by the extension of the inner panel into the baffle sleeve; the total length of the inner baffle in the baffle is 1/1 of the total length of the baffle 2, and when fully extended, the baffle sleeve and the inner baffle should be basically in contact with the sharp bevel, which requires that the distance between the adjacent sharp corners is greater than 1/2 of the length of the sharp bevel; theoretical calculations show that When the angle of the apex angle of the corner is greater than 60 degrees, the above structural requirements can be satisfied.
  • the angle is much larger than the angle of the conventional drive wheel, which causes the case to fall off when the housing drives the track. Therefore, the card structure is added to ensure that the sharp corner does not fall off the chain.
  • the baffle sleeve swings around the top shaft, the top end of the baffle sleeve has rounded corners, and the top support and the top end of the sharp corner also have rounded corners, and the baffle sleeve can smoothly slide down into the oblique angle surface through two rounded corners;
  • the swinging of the baffle sleeve drives the trigger rod to slide along the trigger hole through the transition rod, and the spring is stretched during the sliding, and drives the trigger gear to rotate.
  • the rotation of the trigger gear drives the one-way gear to rotate through the rotating shaft, so that the card is driven.
  • the card hole is punched out, and the leaf spring is compressed, and the inserted card continues to pass through the chain top of the track chain.
  • the design of the card plate ensures that it will not fall off during the process of driving the track.
  • the triggering bar drives the trigger gear to rotate a certain angle, so that the gear notch of the one-way gear faces the card plate, and the engagement of the card plate is lost, and the card plate is in the leaf spring.
  • the restoring force is quickly restored to the card square hole, preventing the top end of the card from being separated from the chain top and disturbing the track chain from the sharp corner.
  • the trigger lever When the trigger lever starts to protrude outward under the restoring force of the spring, the trigger lever will drive the trigger gear to rotate, but since the gear of the driving card plate is a one-way transmission structure, the triggering gear direction rotation will not be driven by the rotating shaft. The one-way gear rotates to avoid the impact on the card.
  • the baffle sleeve and the inner baffle plate will return to the position where the sharp corner groove can be blocked under the action of the triggering lever, and then prepare to interact with the crawler chain next time.
  • the side top plate fixing shaft swings as the baffle sleeve swings, and simultaneously drives the side top plate to move to the lower side of the sharp corner side, and no interference occurs between the side baffles corresponding to the adjacent sharp corner grooves.
  • the hinge bevel is designed to prevent interference when the transition rod and the baffle sleeve are hinged relative to each other.
  • the adjacent trigger holes and the card square holes need to be parallel, so that the trigger lever and the adjustment mechanism of the card plate do not interfere.
  • Figure 1 is a schematic view of the overall component distribution.
  • Figure 2 is a schematic view of the sharp corner structure of the housing.
  • Figure 3 is a schematic view of the overall component operation structure.
  • Figure 4 is a schematic view of the side panel installation.
  • Fig. 5 is a schematic view showing the adjustment structure of the card.
  • Figure 6 is a schematic view of the installation of the trigger gear and the one-way gear.
  • Figure 7 is a schematic view showing the structure of the inner panel.
  • Figure 8 is a schematic view of the structure of the baffle sleeve.
  • Figure 9 is a schematic view showing the structure of the side top plate.
  • Figure 10 is a schematic view of the crawler drive.
  • Figure 11 is a schematic view of the installation of the leaf spring.
  • the label name 1, sharp corner, 2, housing, 3, side panel, 5, top support, 6, trigger hole, 7, top shaft, 8, card square hole, 9, baffle sleeve, 10, transition Rod, 11, inner plate, 12, trigger lever, 13, spring first support, 14, card, 17, spring, 18, spring second support, 19, shaft, 20, trigger gear, 21, one-way gear , 23, inner plate transfer sleeve, 24, side top plate fixed shaft, 25, hinge, 26, gear notch, 27, inner plate notch, 28, hinge bevel, 29, inner plate groove, 30, side top plate fixing hole, 31 , side top plate, 32, track chain, 33, chain top, 34, chain bevel, 35, chain top, 36, leaf spring.
  • FIG. 1, 2, and 3 it includes a sharp corner, a housing, a side plate, a top support, a trigger hole, a top shaft, a card square hole, a baffle sleeve, a transition rod, a block inner plate, a trigger rod, and a spring portion.
  • a support a card board, a spring, a spring second support, a rotating shaft, a trigger gear, a one-way gear, a baffle inner sleeve, a side top plate fixed shaft, a hinge, a gear notch, an inner plate groove, a side top plate fixing hole, a side top plate, Track chain, chain top, chain bevel, leaf spring, wherein, as shown in Figure 1, only a pair of two adjacent sharp corners are given. The structure is distributed at all sharp corners and adjacent tips. Between the corners; as shown in Figures 1 and 2, the housing is hollow in the middle, and the outer edge is uniformly distributed with a plurality of sharp corners in the circumferential direction; as shown in Fig.
  • side plates are respectively installed on both sides of the housing, as shown in Fig. 2.
  • the top end of the top corner is mounted with a top support, and a top shaft is respectively mounted on both ends of the top support.
  • the groove between the sharp corner and the adjacent sharp corner has a trigger hole, and the top end of the sharp corner has a card square hole and is located under the top support.
  • Side; as shown in Fig. 7, one end of one end of the inner plate is respectively provided with a baffle sleeve, as shown in Fig. 3, the inner plate is open
  • the inner sleeve of the inner block is mounted on the top shaft; as shown in FIG.
  • the side of the baffle sleeve is mounted with a side top plate fixed shaft on both sides, and the other end of the baffle sleeve has an inner plate groove, as shown in FIG. 3 .
  • the baffle sleeve is nested on one end of the baffle plate through the inner plate slot; as shown in FIGS.
  • one end of the transition bar is installed in the middle of one end of the baffle cover by a hinge, and the other end is mounted with a trigger bar through a hinge, and the trigger lever Slidingly mounted in the trigger hole;
  • the first support of the spring is mounted on the inner edge surface of the housing, the trigger rod passes through the square hole on the first support of the spring, and the second support of the spring is mounted on the trigger rod;
  • the spring is nested on the trigger rod
  • One end of the spring is connected with the first support of the spring, and the other end is connected with the second support of the spring;
  • the two ends of the rotating shaft are respectively fixed on the two side plates, as shown in FIG. 6, the trigger gear is mounted on the rotating shaft, and the one-way gear is unidirectional.
  • the transmission mode is mounted on the rotating shaft, and the one-way gear has a gear notch; the trigger rod has teeth at one end and the triggering teeth Wheel engagement; as shown in Figure 3, the card passes through the card hole, and the card has teeth at one end, and the card engages with the one-way gear; when the baffle sleeve and the inner plate contact the sharp bevel, the card corresponds The gear notch of the one-way gear; as shown in Figure 9, the side top plate is fixedly mounted on the side top plate fixing shaft through the side top plate fixing hole; as shown in Fig. 11, one end of the leaf spring is mounted on the lower side of the card board, and the other end is mounted on the shell side. On the inner edge surface; as shown in FIG.
  • the crawler belt matched with the casing is connected by a plurality of crawler chains through a rotating shaft, and the lower side of the crawler chain has a chain slope and does not penetrate to the upper side of the crawler chain, and the chain of the crawler chain
  • the inclined side has a slanted chain top, and the lower ends of the track chain have a chain top surface.
  • the sharp corner of the casing cooperates with the inclined surface of the chain, and the card passes through the square hole and passes through the top of the chain, and the top surface of the chain cooperates with the baffle sleeve and the inner plate.
  • one end of the inner panel of the inner panel has an inner panel notch and the inner panel notch corresponds to the card square hole.
  • the above spring is a tension spring.
  • the angle of the apex angle of the casing is greater than 60 degrees.
  • the baffle sleeve and the transition bar hinge joint are hinged.
  • the crawler belts are connected by the track chain through the rotating shaft, and the corners of the casing are caught in the chain slope of the track chain to drive the track to rotate.
  • the principle is similar to the principle of the conventional track and the driving wheel; Covering with the adjacent sharp corners through the baffle sleeve, the inner panel and the side top panel to prevent the general weeds or wraps from being wound around the sharp corners on the drive wheel, causing the failure of the crawler wheel; improving the passage of the track wheel Sex.
  • the rotation of the drive wheel housing drives the track movement through the sharp corners.
  • the top surface of the chain of the track chain exerts a downward force on the baffle cover and the inner plate.
  • the expandable body consisting of the baffle sleeve and the inner panel rotates around the top shaft.
  • the baffle sleeve and the inner baffle are in contact with the beveled bevel, the sharp corners are completely leaked out and extend into the chain bevel of the track chain; the sharp corners act on the chain bevel to drive the chain.
  • a baffle sleeve and the like are used.
  • the inner panel can slide in the baffle sleeve, belonging to the telescopic structure, and the distance between the top shaft and the sharp bevel during the swinging process. Will decrease, this distance reduction is compensated by the extension of the inner panel into the baffle sleeve; the total length of the inner baffle in the baffle is 1/1 of the total length of the baffle 2, and when fully extended, the baffle sleeve and the inner baffle should be basically in contact with the sharp bevel, which requires that the distance between the adjacent sharp corners is greater than 1/2 of the length of the sharp bevel; theoretical calculations show that When the angle of the apex angle of the corner is more than 60 degrees, the above structure can be satisfied. begging.
  • the sharp corner angle of the present invention is much larger than that of the conventional driving wheel, which causes the casing to fall off when the crawler belt is driven. Therefore, the card structure is added in the design to ensure that the sharp corner does not collide with the chain. Fall off.
  • the baffle sleeve swings around the top shaft, the top end of the baffle sleeve has rounded corners, and the top support and the top end of the sharp corner also have rounded corners, and the baffle sleeve can smoothly slide down into the oblique angle surface through two rounded corners;
  • the swinging of the baffle sleeve drives the trigger rod to slide along the trigger hole through the transition rod, and the spring is stretched during the sliding, and drives the trigger gear to rotate.
  • the rotation of the trigger gear drives the one-way gear to rotate through the rotating shaft, so that the card is driven.
  • the card hole is punched out, and the leaf spring is compressed, and the inserted card continues to pass through the chain top of the track chain.
  • the design of the card plate ensures that it will not fall off during the process of driving the track.
  • the triggering bar drives the trigger gear to rotate a certain angle, so that the gear notch of the one-way gear faces the card plate, and the engagement of the card plate is lost, and the card plate is in the leaf spring.
  • the restoring force is quickly restored to the card square hole, preventing the top end of the card from being separated from the chain top and disturbing the track chain from the sharp corner.
  • the trigger lever When the trigger lever starts to protrude outward under the restoring force of the spring, the trigger lever will drive the trigger gear to rotate, but since the gear of the driving card plate is a one-way transmission structure, the triggering gear direction rotation will not be driven by the rotating shaft. The one-way gear rotates to avoid the impact on the card.
  • the baffle sleeve and the inner baffle plate will return to the position where the sharp corner groove can be blocked under the action of the triggering lever, and then prepare to interact with the crawler chain next time.
  • the side top plate fixing shaft swings as the baffle sleeve swings, and simultaneously drives the side top plate to move to the lower side of the sharp corner side, and no interference occurs between the side baffles corresponding to the adjacent sharp corner grooves.
  • the hinge bevel is designed to prevent interference when the transition rod and the baffle sleeve are hinged relative to each other.
  • the adjacent trigger holes and the card square holes need to be parallel, so that the trigger lever and the adjustment mechanism of the card plate do not interfere.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
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  • Mechanical Engineering (AREA)
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Abstract

一种带齿轮的防缠绕履带驱动轮，包括尖角（1）、壳体（2）、侧板（3）、触发孔（6）、卡方孔（8）、挡板套（9）、过渡杆（10）、挡内板（11）、触发杆（12）、卡板（14）、弹簧（17）、触发齿轮（20）、单向齿轮（21）、履带链条（32），其中履带由履带链条（32）通过转轴（19）连接在一起，壳体尖角（1）卡入履带链条（32）的链条斜面（34）进而带动履带旋转，壳体尖角（1）与相邻尖角之间通过挡板套（9）、挡内板（11）和侧顶板（31）遮盖，防止杂草或者可缠绕物缠绕驱动轮上的尖角而引起履带轮的失效，提高履带轮的可通过性。

Description

一种带齿轮的防缠绕履带驱动轮 所属技术领域
本发明属于履带驱动技术领域，尤其涉及一种带齿轮的防缠绕履带驱动轮。
背景技术
目前履带驱动使用在工程车的各个方面；工程车履带的耐用性、任何地形的可通过性和防破坏性等都是评价一辆履带工程车质量的主要指标；特别是行驶在具有各种植物、可缠绕车轮的秸秆或者具有被抛弃的具有一定长度的钢丝的地面，履带驱动轮尖角均会较容易的被缠绕，轻者导致驱动受阻，重者破坏履带结构，造成较大的损失，影响工作任务。所以设计一种防缠绕的履带驱动轮是很有必要的。
本发明设计一种带齿轮的防缠绕履带驱动轮解决如上问题。
发明内容
为解决现有技术中的上述缺陷，本发明公开一种带齿轮的防缠绕履带驱动轮，它是采用以下技术方案来实现的。
一种带齿轮的防缠绕履带驱动轮，其特征在于：它包括尖角、壳体、侧板、顶支撑、触发孔、顶轴、卡方孔、挡板套、过渡杆、挡内板、触发杆、弹簧第一支撑、卡板、弹簧、弹簧第二支撑、转轴、触发齿轮、单向齿轮、挡内板转套、侧顶板固定轴、铰链、齿轮缺口、内板槽、侧顶板固定孔、侧顶板、履带链条、链条顶口、链条斜面、板簧，其中壳体为中间中空，外缘周向均匀分布有多个尖角；壳体两侧分别安装有侧板，尖角顶端安装有顶支撑，顶支撑两端分别安装有一个顶轴，尖角与相邻尖角之间的凹槽中具有触发孔，尖角顶端具有卡方孔且位于顶支撑下侧；挡内板一端的两侧分别安装有一个挡内板转套，挡内板通过挡内板转套安装在顶轴上；挡板套一端的两侧均安装有侧顶板固定轴，挡板套另一端内部开有内板槽，挡板套通过内板槽嵌套在挡内板一端上；过渡杆一端通过铰链安装在挡板套一端的中间，另一端通过铰链安装有触发杆，触发杆滑动安装在触发孔中；弹簧第一支撑安装在壳体内缘面上，触发杆穿过弹簧第一支撑上的方孔，弹簧第二支撑安装在触发杆上；弹簧嵌套在触发杆上，且弹簧一端与弹簧第一支撑连接，另一端与弹簧第二支撑连接；转轴两端分别固定在两个侧板上，触发齿轮安装在转轴上，单向齿轮以单向传动方式安装在转轴上，单向齿轮具有齿 轮缺口；触发杆一端具有齿且与触发齿轮啮合；卡板穿过卡方孔，且卡板一端具有齿，卡板与单向齿轮啮合；当挡板套和挡内板与尖角斜面接触时，卡板对应单向齿轮的齿轮缺口；侧顶板通过侧顶板固定孔固定安装在侧顶板固定轴上；板簧一端安装在卡板下侧，另一端安装在壳体内缘面上；与壳体相配合的履带由多个履带链条通过转轴连接，履带链条中间的下侧具有链条斜面且没有贯穿到履带链条的上侧，履带链条的链条斜面上侧具有倾斜的链条顶口，履带链条两侧下端具有链条顶面。
上述壳体尖角与链条斜面配合，卡板穿过卡方孔后会穿过链条顶口，链条顶面与挡板套和挡内板配合。
作为本技术的进一步改进，上述挡内板具有挡内板转套的一端开有内板缺口且内板缺口与卡方孔对应。
作为本技术的进一步改进，上述弹簧为拉伸弹簧。
作为本技术的进一步改进，上述壳体尖角顶角角度大于60度。
作为本技术的进一步改进，上述挡板套与过渡杆铰链连接处开有铰链斜面。
相对于传统的履带驱动技术，本发明中履带由履带链条通过转轴连接在一起，壳体尖角卡入履带链条的链条斜面进而带动履带旋转，原理同传统的履带与驱动轮的原理类似；壳体尖角与相邻尖角之间通过挡板套、挡内板和侧顶板遮盖，防止一般的杂草或者可缠绕物缠绕驱动轮上的尖角上而引起履带轮的失效；提高履带轮的可通过性。
驱动轮壳体旋转会通过尖角带动履带运动，在壳体尖角与履带接触后，履带链条的链条顶面会对挡板套、挡内板施加向下的力，带动挡板套与挡内板组成的可伸缩体围绕顶轴旋转。当挡板套和挡内板与尖角斜面接触时，促使尖角完全漏出并伸入履带链条的链条斜面中；尖角与链条斜面作用，带动链条运动。设计中尖角之间为了遮挡，使用了挡板套等结构，该结构中挡内板可以在挡板套中滑动，属于伸缩结构，在摆动过程中，顶轴与尖角斜面之间的距离会减小，这种距离的减小通过挡内板伸入挡板套中来弥补；挡内板完全在挡套内的总长度为挡内板完全伸出挡板套的总长度的1/2，而完全伸入时挡板套和挡内板要基本与尖角斜面接触配合，这就要求相邻尖角角尖之间的距离大于尖角斜面长度的1/2；理论计算表明，尖角顶角角度为大于60度时能够满足以上结构要求。本发明中的尖角 角度比传统的驱动轮的角尖大很多，这就引起了壳体驱动履带时会脱落的情况出现，所以设计中增加了卡板结构用来确保尖角不会与链条脱落。当挡板套围绕顶轴摆动过程中，挡板套顶端具有圆角，顶支撑与尖角顶端也具有圆角，挡板套能够通过两个圆角顺利的向下滑入到尖角斜面上；挡板套的摆动通过过渡杆带动触发杆沿着触发孔滑动，滑动中对弹簧进行拉伸，并驱动触发齿轮转动，触发齿轮的转动通过转轴单向带动单向齿轮旋转，使得卡板被驱动穿出卡方孔，同时板簧被压缩，穿出的卡板继续穿过履带链条的链条顶口。卡板的设计保证了在壳体带动履带过程中不会脱落。当壳体尖角与履带链条开始分离时，触发杆带动触发齿轮转动了一定的角度，使得单向齿轮的齿轮缺口正对卡板，将失去对卡板的啮合作用，卡板在板簧的恢复力下迅速恢复到卡方孔中，防止卡板顶端与链条顶口未脱离而干扰履带链条脱离尖角。当触发杆在弹簧的恢复力下开始向外穿出时，触发杆会带动触发齿轮旋转，但是因为驱动卡板的齿轮为单向传动结构，所以此时触发齿轮方向旋转时不会通过转轴带动单向齿轮旋转，避免对卡板的影响。挡板套与挡内板会在触发杆的推力作用下恢复到可以遮挡尖角凹槽的位置，之后准备下一次与履带链条发生作用。侧顶板固定轴随着挡板套摆动而摆动，同时带动侧顶板运动到尖角侧下面，并且对应相邻尖角凹槽的侧挡板之间不会发生干涉。铰链斜面的设计目的在于防止过渡杆与挡板套铰接相对旋转时出现干涉现象。本发明中相邻的触发孔与卡方孔需要保证平行，这样触发杆与卡板的调节机构不会发生干涉。
附图说明
图1是整体部件分布示意图。
图2是壳体尖角结构示意图。
图3是整体部件运行结构示意图。
图4是侧板安装示意图。
图5是卡板调节结构示意图。
图6是触发齿轮、单向齿轮安装示意图。
图7是挡内板结构示意图。
图8是挡板套结构示意图。
图9是侧顶板结构示意图。
图10是履带驱动示意图。
图11是板簧安装示意图。
图中标号名称：1、尖角，2、壳体，3、侧板，5、顶支撑，6、触发孔，7、顶轴，8、卡方孔，9、挡板套，10、过渡杆，11、挡内板，12、触发杆，13、弹簧第一支撑，14、卡板，17、弹簧，18、弹簧第二支撑，19、转轴，20、触发齿轮，21、单向齿轮，23、挡内板转套，24、侧顶板固定轴，25、铰链，26、齿轮缺口，27、内板缺口，28、铰链斜面，29、内板槽，30、侧顶板固定孔，31、侧顶板，32、履带链条，33、链条顶口，34、链条斜面，35、链条顶面，36、板簧。
具体实施方式
如图1、2、3所示，它包括尖角、壳体、侧板、顶支撑、触发孔、顶轴、卡方孔、挡板套、过渡杆、挡内板、触发杆、弹簧第一支撑、卡板、弹簧、弹簧第二支撑、转轴、触发齿轮、单向齿轮、挡内板转套、侧顶板固定轴、铰链、齿轮缺口、内板槽、侧顶板固定孔、侧顶板、履带链条、链条顶口、链条斜面、板簧，其中，如图1所示，图中仅给出了一对两个相邻尖角处的结构，此结构分布在所有尖角与相邻尖角之间；如图1、2所示，壳体为中间中空，外缘周向均匀分布有多个尖角；如图4所示，壳体两侧分别安装有侧板，如图2所示，尖角顶端安装有顶支撑，顶支撑两端分别安装有一个顶轴，尖角与相邻尖角之间的凹槽中具有触发孔，尖角顶端具有卡方孔且位于顶支撑下侧；如图7所示，挡内板一端的两侧分别安装有一个挡内板转套，如图3所示，挡内板通过挡内板转套安装在顶轴上；如图8所示，挡板套一端的两侧均安装有侧顶板固定轴，挡板套另一端内部开有内板槽，如图3所示，挡板套通过内板槽嵌套在挡内板一端上；如图3、5所示，过渡杆一端通过铰链安装在挡板套一端的中间，另一端通过铰链安装有触发杆，触发杆滑动安装在触发孔中；弹簧第一支撑安装在壳体内缘面上，触发杆穿过弹簧第一支撑上的方孔，弹簧第二支撑安装在触发杆上；弹簧嵌套在触发杆上，且弹簧一端与弹簧第一支撑连接，另一端与弹簧第二支撑连接；转轴两端分别固定在两个侧板上，如图6所示，触发齿轮安装在转轴上，单向齿轮以单向传动方式安装在转轴上，单向齿轮具有齿轮缺口；触发杆一端具有齿且与触发齿 轮啮合；如图3所示，卡板穿过卡方孔，且卡板一端具有齿，卡板与单向齿轮啮合；当挡板套和挡内板与尖角斜面接触时，卡板对应单向齿轮的齿轮缺口；如图9所示，侧顶板通过侧顶板固定孔固定安装在侧顶板固定轴上；如图11所示，板簧一端安装在卡板下侧，另一端安装在壳体内缘面上；如图10所示，与壳体相配合的履带由多个履带链条通过转轴连接，履带链条中间的下侧具有链条斜面且没有贯穿到履带链条的上侧，履带链条的链条斜面上侧具有倾斜的链条顶口，履带链条两侧下端具有链条顶面。
如图10所示，上述壳体尖角与链条斜面配合，卡板穿过卡方孔后会穿过链条顶口，链条顶面与挡板套和挡内板配合。
如图3所示，上述挡内板具有挡内板转套的一端开有内板缺口且内板缺口与卡方孔对应。
上述弹簧为拉伸弹簧。
如图3所示，上述壳体尖角顶角角度大于60度。
如图8所示，上述挡板套与过渡杆铰链连接处开有铰链斜面。
综上所述，本发明中履带由履带链条通过转轴连接在一起，壳体尖角卡入履带链条的链条斜面进而带动履带旋转，原理同传统的履带与驱动轮的原理类似；壳体尖角与相邻尖角之间通过挡板套、挡内板和侧顶板遮盖，防止一般的杂草或者可缠绕物缠绕驱动轮上的尖角上而引起履带轮的失效；提高履带轮的可通过性。
如图3、10所示，驱动轮壳体旋转会通过尖角带动履带运动，在壳体尖角与履带接触后，履带链条的链条顶面会对挡板套、挡内板施加向下的力，带动挡板套与挡内板组成的可伸缩体围绕顶轴旋转。当挡板套和挡内板与尖角斜面接触时，促使尖角完全漏出并伸入履带链条的链条斜面中；尖角与链条斜面作用，带动链条运动。设计中尖角之间为了遮挡，使用了挡板套等结构，该结构中挡内板可以在挡板套中滑动，属于伸缩结构，在摆动过程中，顶轴与尖角斜面之间的距离会减小，这种距离的减小通过挡内板伸入挡板套中来弥补；挡内板完全在挡套内的总长度为挡内板完全伸出挡板套的总长度的1/2，而完全伸入时挡板套和挡内板要基本与尖角斜面接触配合，这就要求相邻尖角角尖之间的距离大于尖角斜面长度的1/2；理论计算表明，尖角顶角角度为大于60度时能够满足以上结构要 求。本发明中的尖角角度比传统的驱动轮的角尖大很多，这就引起了壳体驱动履带时会脱落的情况出现，所以设计中增加了卡板结构用来确保尖角不会与链条脱落。当挡板套围绕顶轴摆动过程中，挡板套顶端具有圆角，顶支撑与尖角顶端也具有圆角，挡板套能够通过两个圆角顺利的向下滑入到尖角斜面上；挡板套的摆动通过过渡杆带动触发杆沿着触发孔滑动，滑动中对弹簧进行拉伸，并驱动触发齿轮转动，触发齿轮的转动通过转轴单向带动单向齿轮旋转，使得卡板被驱动穿出卡方孔，同时板簧被压缩，穿出的卡板继续穿过履带链条的链条顶口。卡板的设计保证了在壳体带动履带过程中不会脱落。当壳体尖角与履带链条开始分离时，触发杆带动触发齿轮转动了一定的角度，使得单向齿轮的齿轮缺口正对卡板，将失去对卡板的啮合作用，卡板在板簧的恢复力下迅速恢复到卡方孔中，防止卡板顶端与链条顶口未脱离而干扰履带链条脱离尖角。当触发杆在弹簧的恢复力下开始向外穿出时，触发杆会带动触发齿轮旋转，但是因为驱动卡板的齿轮为单向传动结构，所以此时触发齿轮方向旋转时不会通过转轴带动单向齿轮旋转，避免对卡板的影响。挡板套与挡内板会在触发杆的推力作用下恢复到可以遮挡尖角凹槽的位置，之后准备下一次与履带链条发生作用。侧顶板固定轴随着挡板套摆动而摆动，同时带动侧顶板运动到尖角侧下面，并且对应相邻尖角凹槽的侧挡板之间不会发生干涉。铰链斜面的设计目的在于防止过渡杆与挡板套铰接相对旋转时出现干涉现象。本发明中相邻的触发孔与卡方孔需要保证平行，这样触发杆与卡板的调节机构不会发生干涉。

Claims (5)

  1. 一种带齿轮的防缠绕履带驱动轮，其特征在于：它包括尖角、壳体、侧板、顶支撑、触发孔、顶轴、卡方孔、挡板套、过渡杆、挡内板、触发杆、弹簧第一支撑、卡板、弹簧、弹簧第二支撑、转轴、触发齿轮、单向齿轮、挡内板转套、侧顶板固定轴、铰链、齿轮缺口、内板槽、侧顶板固定孔、侧顶板、履带链条、链条顶口、链条斜面、板簧，其中壳体为中间中空，外缘周向均匀分布有多个尖角；壳体两侧分别安装有侧板，尖角顶端安装有顶支撑，顶支撑两端分别安装有一个顶轴，尖角与相邻尖角之间的凹槽中具有触发孔，尖角顶端具有卡方孔且位于顶支撑下侧；挡内板一端的两侧分别安装有一个挡内板转套，挡内板通过挡内板转套安装在顶轴上；挡板套一端的两侧均安装有侧顶板固定轴，挡板套另一端内部开有内板槽，挡板套通过内板槽嵌套在挡内板一端上；过渡杆一端通过铰链安装在挡板套一端的中间，另一端通过铰链安装有触发杆，触发杆滑动安装在触发孔中；弹簧第一支撑安装在壳体内缘面上，触发杆穿过弹簧第一支撑上的方孔，弹簧第二支撑安装在触发杆上；弹簧嵌套在触发杆上，且弹簧一端与弹簧第一支撑连接，另一端与弹簧第二支撑连接；转轴两端分别固定在两个侧板上，触发齿轮安装在转轴上，单向齿轮以单向传动方式安装在转轴上，单向齿轮具有齿轮缺口；触发杆一端具有齿且与触发齿轮啮合；卡板穿过卡方孔，且卡板一端具有齿，卡板与单向齿轮啮合；当挡板套和挡内板与尖角斜面接触时，卡板对应单向齿轮的齿轮缺口；侧顶板通过侧顶板固定孔固定安装在侧顶板固定轴上；板簧一端安装在卡板下侧，另一端安装在壳体内缘面上；与壳体相配合的履带由多个履带链条通过转轴连接，履带链条中间的下侧具有链条斜面且没有贯穿到履带链条的上侧，履带链条的链条斜面上侧具有倾斜的链条顶口，履带链条两侧下端具有链条顶面；
    上述壳体尖角与链条斜面配合，卡板穿过卡方孔后会穿过链条顶口，链条顶面与挡板套和挡内板配合。
  2. 根据权利要求1所述的一种带齿轮的防缠绕履带驱动轮，其特征在于：上述挡内板具有挡内板转套的一端开有内板缺口且内板缺口与卡方孔对应。
  3. 根据权利要求1所述的一种带齿轮的防缠绕履带驱动轮，其特征在于：上述弹簧为拉伸弹簧。
  4. 根据权利要求1所述的一种带齿轮的防缠绕履带驱动轮，其特征在于： 上述壳体尖角顶角角度大于60度。
  5. 根据权利要求1所述的一种带齿轮的防缠绕履带驱动轮，其特征在于：上述挡板套与过渡杆铰链连接处开有铰链斜面。
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