CN217100241U

CN217100241U - Loading wheel chain assembly

Info

Publication number: CN217100241U
Application number: CN202220508650.7U
Authority: CN
Inventors: 吕凯; 李立顺; 刘洁; 汪志远; 王曦; 贾楠; 李梦晗; 赵重年; 汪子盛
Original assignee: Military Transportation Research Institute Of Chinese People's Liberation Army Army Military Transportation Academy
Current assignee: Military Transportation Research Institute Of Chinese People's Liberation Army Army Military Transportation Academy
Priority date: 2022-03-08
Filing date: 2022-03-08
Publication date: 2022-08-02
Anticipated expiration: 2032-03-08

Abstract

The utility model relates to the technical field of vehicles, especially, relate to a heavy burden wheel chain assembly body, including bogie wheel and bogie wheel suspension, the bogie wheel is installed on the bogie wheel suspension, the bogie wheel suspension is established ties in proper order and is articulated, forms the nimble heavy burden wheel chain assembly body of form. The weight-bearing wheel chain assembly can be used as a weight-bearing wheel or a supporting wheel, and can guide the rubber crawler through limiting the transverse displacement (along the width direction of the crawler) of the rubber crawler, so that the belt falling-off condition is avoided. The flexible form of the loading wheel chain assembly can enable the ground connection part of the walking system to better conform to terrain changes, and is convenient for adjusting the ground connection area of the walking system.

Description

Loading wheel chain assembly

Technical Field

The utility model relates to the technical field of vehicles, especially, relate to a heavy burden wheel chain assembly body.

Background

The bogie wheels of the prior crawler traveling system are generally arranged on a vehicle body through different suspensions, or a plurality of bogie wheels are arranged on the same suspension, and the suspensions are not directly related. The former makes the multiple bogie wheels move independently of each other, and the latter makes the motion of each bogie wheel completely correlated. When the vehicle runs on complex terrain, the vehicle can have better smoothness, but due to the lack of correlation between the bogie wheels, when the bogie wheels swing, the crawler belt is easy to loosen, so that the belt is easy to fall off. The latter is poor in smoothness and throughput, such as: the Chinese patent discloses a reconfigurable variant wheel capable of realizing wheel-track switching, and the application number is 201922303041.9, the retainer assembly in the application comprises a retainer, a bearing wheel set, a second fixed wheel shaft, a middle beam and a locking block, wherein the retainer is of an arc-shaped structure with a certain angle, and one end of the retainer is hinged with a fixed support or a movable support. The second fixed wheel shaft is fixedly connected with the retainer, and the bearing wheel in the bearing wheel set is sleeved on the second fixed wheel shaft in an empty manner; for another example, the chinese patent discloses a deformable tire, application No.: 202011010683.0, the support frame includes two backup pads and a plurality of gyro wheel in this patent, and a plurality of gyro wheel both ends rotate respectively and connect two backup pads, and the connecting rod rotates and connects a backup pad, and the gyro wheel is the arc and arranges with track butt, gyro wheel. In the above two patents, the structure and the installation manner of the retainer (supporting frame) and the load bearing wheel set (roller) are the same, and the structure has the following disadvantages: the loading wheel groups are uniformly arranged and arranged in the circumferential arc range determined by the retainer and are always in a form, the wheel centers of the loading wheels can not be in the same straight line all the time, when the crawler wheel is in the form, one retainer only can ensure that one or at most two loading wheels in different positions are rolled on the crawler, the middle part and two sides of the grounding part are upwarped, the part in contact with the ground is not in a straight line, other loading wheels are difficult to contact the crawler, so that the load is concentrated, the loading wheels and the like are damaged too early, the service life is shortened, and the ground contact pressure of a walking system is uneven, so that the trafficability and the reliability are reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of above-mentioned technique, and provide a heavy burden wheel chain assembly body.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme: the utility model provides a heavy burden wheel chain assembly body, includes heavy duty wheel and heavy duty wheel suspension, the heavy duty wheel is installed on the heavy duty wheel suspension, the heavy duty wheel suspension is established ties in proper order and is articulated.

Preferably, the truck wheel suspension has a plug-in structure at both ends or a plug-in structure at one end and a plug-in structure at the other end, and the truck wheel suspension is defined as a middle truck wheel suspension, or the truck wheel suspension has a plug-in structure at one end and a male truck wheel suspension, or the truck wheel suspension has a plug-in structure at one end and a female truck wheel suspension, and the two or more truck wheel suspensions are hinged to each other through the plug-in structures and the plug-in structures at the ends to form a truck wheel chain assembly, wherein the male truck wheel suspension or the female truck wheel suspension is located at one end of both ends of the truck wheel chain assembly.

Preferably, the loading wheel suspension is provided with a connecting hole for connecting a component for adjusting the form of the loading wheel chain assembling body.

Preferably, the bogie wheel suspension is provided with a cavity structure.

Preferably, the bogie wheel is connected to a bogie wheel suspension by a connecting shaft.

Preferably, the connecting shaft is articulated with a bogie wheel suspension.

Preferably, the bogie wheels are hinged at two ends of the connecting shaft, and the connecting shaft is connected with the bogie wheel suspension.

Preferably, the bogie wheel is replaced by a sector.

Preferably, the fan-shaped blocks are fixedly connected to the connecting shaft, and the connecting shaft is connected with the bogie wheel suspension.

Preferably, the bogie wheel suspension limits the movement of the sector.

Preferably, the fan-shaped blocks are arranged at two ends of the connecting shaft, and the connecting shaft is connected with the bogie wheel suspension.

Preferably, the segments at the two ends are secured together by a web that passes through the cavity structure of the bogie wheel suspension to limit movement of the web.

The utility model has the advantages that: the loading wheel on the loading wheel chain assembly can be used as a loading wheel or a supporting wheel, and can limit the transverse displacement (along the width direction of the crawler belt) of the rubber crawler belt, so that the belt falling-off condition is avoided.

The walking system of this heavy burden wheel chain assembly body can realize the adjustment of track ground connection area, and when it was flare-outed completely, walking system can obtain the biggest ground connection area, and when bending into the arc, walking system's ground connection area was minimum, and heavy burden wheel chain assembly body can also bend into more complicated like wave form, makes the change that walking system ground connection part can comply with the topography profile, makes its difficult skidding, draws more reliable and more stable.

When the loading wheel chain assembly body changes the form, because each loading wheel is correlated with each other through the loading wheel suspension, consequently it is little to track tensioning degree influence, is favorable to preventing the strip. Compared with a bogie wheel installed on different suspensions, the bogie wheel has fewer degrees of freedom, and a simpler suspension control system is favorably used.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a schematic structural view of a female end bogie wheel suspension in the present invention;

fig. 3 is a schematic structural view of a middle bogie suspension in the present invention;

fig. 4 is a schematic structural view of a male end bogie suspension according to the present invention;

FIG. 5 is a schematic view of the structure of the present invention in which the bogie wheels of a set of segments are mounted on the bogie wheel suspension at the female end;

FIG. 6 is a schematic view of the structure of the invention in which the bogies of a set of segments are mounted on the male end bogie suspension;

fig. 7 is a perspective view of a pair of load wheels in the present invention;

fig. 8 is a cross-sectional view of a pair of load wheels in accordance with the present invention;

fig. 9 is a view showing a state where the load wheel chain assembly of the present invention is completely straightened;

FIG. 10 is a view showing one of the loading chain assemblies of the present invention during bending;

fig. 11 is another form view of the loading chain assembly of the present invention in the bending process;

fig. 12 is a view showing a loading chain assembly according to the present invention bent in an arc shape;

fig. 13 is a positional relationship diagram between the rubber crawler and the bogie wheel in a state where the bogie chain assembly of the present invention is bent;

fig. 14 is a view showing a positional relationship between a rubber crawler and a bogie wheel in a state where a bogie chain assembly of the present invention is completely straightened;

FIG. 15 is a complex view of the loading chain assembly of the present invention under the action of ground undulations;

in the figure: 1. a loading wheel; 2. a bogie wheel suspension; 3. a female end bogie wheel suspension; 4. a middle bogie wheel suspension; 5. a male end bogie wheel suspension; 6. a slot structure; 7. a board inserting structure; 8. connecting holes; 9. a sector block; 10. a sector block connecting plate; 11. a cavity structure; 12. a connecting shaft; 13. an outer end cover; 14. an inner end cap; 15. a bearing; 16. a hub; 17. a rubber layer; 18. a positioning ring; 19. a bolt; 20. a seal ring; 21. a circlip; 22. an annular projection; 23. a shaft shoulder; 24. an O-shaped sealing ring; 25. rubber track drive teeth; 26. an end face.

Detailed Description

It should be noted that the embodiments and features of the embodiments of the present invention can be combined with each other without conflict.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, unless otherwise specified, "a plurality" means two or more.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," "fixedly connected," and "fixedly connected" are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

As shown in fig. 1, the loading wheel chain assembly comprises a loading wheel 1 and a loading wheel suspension 2, wherein the loading wheel is mounted on the loading wheel suspension, and the loading wheel suspensions are sequentially hinged in series to form the loading wheel chain assembly with a flexible form.

Specifically, as shown in fig. 2 and 4, the bogie wheel suspension has a slot structure 6 or a plate insertion structure 7 only at one end thereof, and is located at one of both ends of the bogie wheel chain assembly after being mounted. Wherein, the suspension 3 of the load wheel with a female end and a plug-in structure is arranged at one end only and the suspension 5 of the load wheel with a male end and a plug-in structure is arranged at one end only. The bogie wheel suspension has a plate insertion structure or a slot structure at both ends, and the bogie wheel suspension is a middle bogie wheel suspension 4, as shown in fig. 3, one end of the middle bogie wheel suspension is provided with a plate insertion structure 7, and the other end is provided with a slot structure 6. Two or more of the bogie wheel suspensions are hinged by means of an insert plate structure and a slot structure at the end. The female and male bogie wheel suspensions 3 and 5 are mounted at opposite ends of the bogie chain assembly, as shown in figures 1 and 15. As shown in fig. 2 to 4, the female-end bogie wheel suspension 3, the middle bogie wheel suspension 4 and the male-end bogie wheel suspension 5 are respectively provided with a connecting hole 8. Can be installed with other components such as a vehicle body, a control connecting piece and the like through the connecting hole, thereby realizing the form adjustment thereof, as shown in fig. 9 to 12.

The bogie wheel can be connected with the bogie wheel suspension in various ways, and only the bogie wheel can rotate relative to the bogie wheel suspension, namely at least one rotational degree of freedom is provided. If the bogie wheel is fixedly connected on a connecting shaft, the connecting shaft is hinged with the bogie wheel suspension; or the connecting shaft is hinged on other elements which are connected with the bogie wheel suspension; or the bogie wheel can also be directly hinged on the connecting shaft, and the connecting shaft is fixedly connected with the bogie wheel suspension, or the connecting shaft is connected with the bogie wheel suspension through other elements. As shown in fig. 2 to 4, each of the bogie wheel suspensions is fixedly connected to the connecting shaft 12, the bogie wheels are installed at both ends of the connecting shaft 12 in pairs through bearings, and each of the bogie wheel suspensions is provided with two pairs of bogie wheels. As shown in fig. 7 and 8, the pair of bogie wheels consists of a connecting shaft 12 and bogie wheels hinged at both ends thereof; the bogie wheel comprises an outer end cover 13, an inner end cover 14 and a wheel hub 16, a rubber layer 17 is arranged on the periphery of an outer ring of the wheel hub, the connecting shaft penetrates through a bogie wheel suspension and is fixedly connected with the bogie wheel suspension, the wheel hub is installed on the connecting shaft through a bearing 15, an elastic check ring 21 used for limiting axial movement of the bearing is arranged at the outer end of the connecting shaft, the inner end cover and the outer end cover are fixedly connected to the inner side and the outer side of the wheel hub through bolts 19 respectively, and the inner end cover and the connecting shaft are sealed through a sealing ring 20. The sealing ring is sleeved on the connecting shaft, one side of the sealing ring is in contact with the inner end cover, the other side of the sealing ring is axially limited by a positioning ring 18 or an annular bulge 22 on the connecting shaft, and the positioning ring is limited by a shaft shoulder 23 on the connecting shaft. The inner and outer end caps are sealed to the hub by O-rings 24.

As a special case, when the bogie wheel only plays a role in supporting and guiding and does not move relative to the crawler, the rotation of the bogie wheel relative to the bogie wheel suspension does not need to be ensured, namely the bogie wheel does not have a continuous rotation function, and a simple fan-shaped block can be adopted for replacement. If the fan-shaped block can be directly fixed on the bogie wheel suspension and also can be fixed on other elements, the other elements are connected with the bogie wheel suspension, and the fan-shaped block can also move in a limited way relative to the bogie wheel suspension, such as swinging and the like. As shown in fig. 5 and 6, the bogie wheels in a set of bogie wheel pairs on the female-end bogie wheel suspension and the male-end bogie wheel suspension are replaced by the fan-shaped blocks 9, the two fan-shaped blocks are fixedly connected through the fan-shaped block connecting plate 10, the fan-shaped block connecting plate penetrates through the cavity structure 11 in the middle of the female-end bogie wheel suspension and the male-end bogie wheel suspension to limit the two fan-shaped blocks, and the cavity structure 11 limits the swing of the fan-shaped block connecting plate 10 to enable the arc-shaped outer peripheral sides of the fan-shaped blocks to face and be fixed.

When the loading wheel chain assembly is in a completely straightened state, the centers of the loading wheels are flush, namely, the loading wheels are positioned on the same plane, and the traveling system can obtain the maximum grounding area; under the condition of keeping the centers of the bogie wheels in the middle to be level, the bogie wheels are gradually bent from the two ends, and the grounding area can be adjusted by controlling the shape of the bogie wheels; when the walking system is bent into an arc shape, namely the centers of the bogie wheels are positioned on the same arc surface, the ground contact area of the walking system is the minimum.

As shown in fig. 9, when the bottom loading wheel chain assembly is completely straightened, the contact area of the walking system and the ground is the largest, and the walking system is suitable for soft off-road terrain with low adhesion coefficient. As shown in fig. 10 to 12, the load wheel chain assembly is gradually bent from both ends, and the ground contact area of the traveling system is gradually reduced; as shown in fig. 12, the respective load-bearing wheel chain assemblies are bent in an arc shape, and the centers of the respective arc shapes are overlapped with each other, so that the outer peripheral side of the traveling system is formed as a complete circle, and the traveling system ground contact area is at a minimum. By adjusting the grounding area, the optimal matching of trafficability, traction, maneuvering speed and the like of the walking system on various terrains is facilitated. As shown in fig. 15, the loading wheel chain assembly can also be bent into a more complex shape such as a wave shape, so that the ground contact part of the walking system can conform to the change of the terrain contour, the walking system is not easy to slip, and the traction is more stable and reliable. When the loading wheel chain assembly body changes the form, because each loading wheel is correlated with each other through the loading wheel suspension, consequently it is little to track tensioning degree influence, is favorable to preventing the strip. Compared with a bogie wheel installed on different suspensions, the bogie wheel has fewer degrees of freedom, and a simpler suspension control system is favorably used.

As shown in fig. 13 and 14, the rubber crawler is guided by the contact of the side surfaces of the respective bogie wheels of the bogie chain assembly with the end surfaces 26 of the rubber crawler drive teeth 25, thereby preventing the belt from being detached.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A loading wheel chain assembly body which characterized in that: the bogie comprises a bogie wheel and a bogie wheel suspension, wherein the bogie wheel is arranged on the bogie wheel suspension, and the bogie wheel suspension is sequentially hinged in series.

2. The loading wheel chain assembly as claimed in claim 1, wherein: the both ends of bogie wheel suspension all have picture peg structure or both ends all have slot structure, or one end has slot structure and the other end has picture peg structure, this kind of bogie wheel suspension is defined as middle part bogie wheel suspension, or bogie wheel suspension one end has picture peg structure, this kind of bogie wheel suspension is defined as public end bogie wheel suspension, or bogie wheel suspension one end has slot structure, this kind of bogie wheel suspension is defined as female end bogie wheel suspension, above two or more bogie wheel suspensions hinge mutually through the picture peg structure and the slot structure of tip, form the bogie wheel chain assembly body, wherein public end bogie wheel suspension or female end bogie wheel suspension is in the one end in the bogie wheel chain assembly body both ends.

3. The loading wheel chain assembly as claimed in claim 1, wherein: the loading wheel suspension is provided with a connecting hole for connecting a component for adjusting the form of the loading wheel chain assembling body.

4. The loading wheel chain assembly as claimed in claim 1, wherein: the bogie wheel suspension is provided with a cavity structure.

5. The loading wheel chain assembly as claimed in claim 1, wherein: the bogie wheel is connected to the bogie wheel suspension through a connecting shaft.

6. The weight-bearing chain assembly as set forth in claim 5, wherein: the connecting shaft is hinged with the bogie wheel suspension.

7. The loading wheel chain assembly as claimed in claim 5, wherein: the bogie wheels are hinged at two ends of the connecting shaft, and the connecting shaft is connected with the bogie wheel suspension.

8. The loading wheel chain assembly as claimed in claim 1, wherein: the bogie wheel may be replaced by a sector.

9. The load-bearing wheel chain assembly as in claim 8, wherein: the fan-shaped blocks are fixedly connected to the connecting shaft, and the connecting shaft is connected with the bogie wheel suspension.

10. The load-bearing wheel chain assembly as in claim 8, wherein: the bogie wheel suspension limits the movement of the sector.

11. The load-bearing wheel chain assembly as in claim 10, wherein: the fan-shaped blocks are arranged at two ends of the connecting shaft, and the connecting shaft is connected with the bogie wheel suspension.

12. The load-bearing wheel chain assembly as in claim 11, wherein: the fan-shaped blocks at the two ends are fixedly connected together through a connecting plate, and the connecting plate penetrates through a cavity structure of the bogie wheel suspension frame, so that the movement of the connecting plate is limited.