CN210175012U

CN210175012U - Vehicle track assembly and vehicle

Info

Publication number: CN210175012U
Application number: CN201921090454.7U
Authority: CN
Inventors: Bin Zhao; 赵斌; Kang Liang; 梁康; Huiyu Xiang; 相辉玉
Original assignee: Construction Machinery Branch of XCMG
Current assignee: Jiangsu XCMG Construction Machinery Institute Co Ltd
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2020-03-24
Anticipated expiration: 2029-07-12

Abstract

The utility model discloses a vehicle track assembly and vehicle, vehicle track assembly include that support, drive wheel and cover establish track outside the drive wheel, the track is including locating its inboard track tooth, the drive wheel includes: the driving wheel body is rotatably arranged on the bracket; the driving rollers are distributed at intervals along the peripheral surface of the driving wheel body, can rotate relative to the driving wheel body, and are parallel to the rotating axis of the driving wheel body in rotating axis, and are used for being meshed with the crawler teeth to drive the crawler belt. The vehicle track assembly can reduce heat generated by friction when the driving wheel is engaged with the track.

Description

Vehicle track assembly and vehicle

Technical Field

The utility model relates to a mechanical engineering field, in particular to vehicle track assembly and applied this vehicle crawler's vehicle.

Background

The crawler assembly mainly comprises a driving wheel and a crawler surrounding the driving wheel, a thrust wheel and a tension wheel. The vehicle using the crawler belt assembly has the advantages of small ground pressure, large adhesive force and the like, and is widely applied in the fields of engineering vehicles and the like. However, under heavy load and high speed conditions, the driving gear teeth of the driving wheel and the track teeth slide relatively during meshing, additional frictional heat is generated, and the running speed and the service life of the track are influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a vehicle track assembly uses the heat that the friction when this vehicle track assembly can reduce drive wheel and track meshing produced. The utility model also provides an use vehicle of this vehicle track assembly.

The utility model discloses a vehicle track assembly, establish including support, drive wheel and cover track outside the drive wheel, the track is including locating its inboard athey tooth, the drive wheel includes:

the driving wheel body is rotatably arranged on the bracket;

the driving rollers are distributed at intervals along the peripheral surface of the driving wheel body, can rotate relative to the driving wheel body, and are parallel to the rotating axis of the driving wheel body in rotating axis, and are used for being meshed with the crawler teeth to drive the crawler belt.

In some embodiments, the driving wheel further comprises a plurality of supporting structures installed on the outer peripheral surface of the driving wheel at intervals, the supporting structures comprise bearing seats and self-lubricating bearing sleeves installed in the bearing seats, and the plurality of driving rollers are correspondingly installed in the self-lubricating bearing sleeves of the plurality of supporting structures.

In some embodiments, the drive wheel body is including establishing opening towards on its peripheral surface drive wheel body radially outside's opening, the opening be used for with the excircle surface cooperation of bearing frame, opening cross sectional shape includes the major arc and connects the major arc both ends and with two tangent straightways of major arc, two straightways are kept away from the distance between the extreme point of major arc is less than the excircle diameter of bearing frame.

In some embodiments, the material of the self-lubricating bearing sleeve is a light polymer material, a light composite material or a copper-based self-lubricating material.

In some embodiments, the vehicle track assembly is a delta track assembly, the track is a rubber track, and the track teeth are rubber track teeth.

A second aspect of the present invention discloses a vehicle, comprising a vehicle track assembly.

Based on the utility model provides a vehicle track assembly through set up the track tooth meshing that can pivoted drive roller and track on the drive wheel body of drive wheel to can reduce the sliding friction between drive wheel and the track, the heat that the antifriction produced improves track service environment, improves the life of track.

Use the utility model discloses a vehicle track assembly's vehicle also has corresponding beneficial effect.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

FIG. 1 is a schematic structural view of a vehicle track assembly according to an embodiment of the present invention;

FIG. 2 is a schematic illustration of a drive wheel of the track assembly of the vehicle of FIG. 1;

FIG. 3 is a schematic, partially cross-sectional view of a drive wheel of the track assembly of the vehicle of FIG. 1;

FIG. 4 is an enlarged partial schematic view of a portion A of the drive wheel shown in FIG. 3;

FIG. 5 is a schematic illustration of the structure of a track of the track assembly of the vehicle of FIG. 1;

FIG. 6 is a schematic diagram of a driving wheel body of the driving wheel shown in FIG. 2;

FIG. 7 is a schematic view of a cutout in the drive wheel body shown in FIG. 6;

FIG. 8 is a schematic view of a drive roller of the drive wheel shown in FIG. 2;

FIG. 9 is a schematic structural view of a self-lubricating bearing sleeve of the drive wheel shown in FIG. 4;

fig. 10 is a schematic structural view of a bearing housing of the driving wheel shown in fig. 4.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1 to 6, the vehicle track assembly of the present embodiment includes a frame 2, a driving wheel 1, and a track 3 sleeved outside the driving wheel 1. The crawler belt 3 includes a crawler tooth 31 provided on an inner side thereof, and the drive wheel 1 includes a drive wheel body 12 and a plurality of drive rollers 11. The driving wheel body 12 is rotatably arranged on the bracket 2; a plurality of drive rollers 11 are spaced along the outer peripheral surface of the drive wheel body 12, rotatable relative to the drive wheel body 12 with an axis of rotation parallel to the axis of rotation of the drive wheel body 12, for engaging with the track teeth 31 to drive the track 3.

By driving the driving wheel body 12 to rotate relative to the bracket 2, the driving wheel body 12 drives the driving roller 11 to revolve around the rotation axis of the driving wheel body 12, and the driving roller 11 meshes with the track teeth 31 of the track 3 when revolving, so that the track 3 is driven to rotate, and the vehicle is driven to walk.

When the driving roller 11 of the driving wheel 1 of the embodiment is engaged with the track teeth 31 to drive the track 3, the driving roller 11 can rotate around its own axis in addition to revolving around the rotation axis of the driving wheel body 1, so that the engagement with the track teeth 31 is realized only by radially transmitting load, relative sliding is reduced, sliding friction between the driving wheel 1 and the track 3 is reduced, heat generated by friction is reduced, the use environment of the track 3 is improved, and the service life of the track 3 is prolonged.

In some embodiments, as shown in fig. 1 to 4 and 8 to 10, the driving wheel 1 further includes a plurality of support structures installed at intervals on the outer peripheral surface of the driving wheel 1, each support structure includes a bearing seat 13 and a self-lubricating bearing sleeve 14 installed in the bearing seat 13, and the plurality of driving rollers 11 are installed in the self-lubricating bearing sleeves 14 of the plurality of support structures correspondingly. The bearing housing 13 may be provided with a mounting inner hole as shown in fig. 10, and the self-lubricating bearing sleeve 14 may be provided with a cylindrical body fitted with the mounting inner hole of the bearing housing 13 as shown in fig. 9, by inserting the cylindrical body into the mounting inner hole of the bearing housing 13, so that the self-lubricating bearing sleeve 14 is mounted into the bearing housing 13, and then the bearing housing 13 is mounted on the outer circumferential surface of the driving wheel body 12, so that the supporting structure can be mounted on the driving wheel body 12. The driving roller 11 may include a driving portion 112 for cooperating with the track teeth 31 and a journal portion 111 for mounting as shown in fig. 8, and the self-lubricating bearing housing 14 of the supporting structure is mounted with the journal portion 111, so that the driving roller 11 can rotate. The driving roller 11 of the embodiment has a simple, convenient and reliable mounting structure.

In some embodiments, the material of the self-lubricating bearing sleeve 14 is a lightweight polymer material, a lightweight composite material, or a copper-based self-lubricating material. The self-lubricating bearing sleeve can be a copper-based self-lubricating bearing sleeve, and can also be made of high polymer materials, composite materials and the like, and the self-lubricating bearing sleeve 14 of the embodiment is made of light high polymer materials or light composite materials, so that the rotational inertia of the driving wheel 1 is reduced, and the light weight of the structure is facilitated.

In some embodiments, as shown in fig. 2, 3, 4, 7 and 10, the driving wheel body 12 includes a notch 121 formed on the outer circumferential surface thereof and opening radially outward of the driving wheel body 12, the notch 121 is configured to fit the outer circumferential surface of the bearing seat 13, the cross-sectional shape of the notch 121 includes a major arc and two straight line segments connected to both ends of the major arc and tangent to the major arc, and a distance L between end points of the two straight line segments away from the major arc is smaller than the outer circumferential diameter of the bearing seat 13. This setting, the installation of the bearing frame 13 of being convenient for, distance L is less than the excircle diameter of bearing frame 13 simultaneously, and the installation that helps bearing frame 13 again is firm, prevents that bearing frame 13 from droing from opening 121 at the during operation. In addition, design into major arc and straightway complex form with the opening, the major arc section helps with the inseparable laminating on the excircle surface of bearing frame 13, and the setting of straightway is convenient for bearing frame 13 to insert opening 121 promptly simultaneously, also is convenient for realize the processing to opening 121 simultaneously.

In some embodiments, the vehicle track assembly is a delta track assembly, the track 3 is a rubber track 3, and the track teeth 31 are rubber track teeth. The vehicle track assembly of the embodiment is beneficial to exerting the advantages of light structural mass, high running speed, strong off-road capability and the like of the triangular track assembly. Simultaneously, help avoiding the problem that generates heat of the rubber track of triangle track assembly to improve the speed of travel and the bearing capacity of rubber track, improve the life of rubber track, help alleviating the gnawing tooth problem of the rubber track tooth that the tooth jumping of rubber track leads to simultaneously.

In some embodiments, the vehicle further comprises a vehicle applying the vehicle track assembly.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims

1. The utility model provides a vehicle track assembly, includes support (2), drive wheel (1) and cover and establishes track (3) outside drive wheel (1), its characterized in that, track (3) are including locating its inboard track tooth (31), drive wheel (1) includes:

the driving wheel body (12) is rotatably arranged on the bracket (2);

a plurality of drive rollers (11) spaced apart along the outer peripheral surface of the drive wheel body (12) and rotatable relative to the drive wheel body (12) with an axis of rotation parallel to the axis of rotation of the drive wheel body (12) for engaging with the track teeth (31) to drive the track (3).

2. The vehicle track assembly of claim 1, wherein the drive wheel (1) further comprises a plurality of support structures mounted at intervals on the outer peripheral surface of the drive wheel (1), the support structures comprising a bearing seat (13) and a self-lubricating bearing sleeve (14) mounted within the bearing seat (13), the plurality of drive rollers (11) being correspondingly mounted in the self-lubricating bearing sleeve (14) of the plurality of support structures.

3. The vehicle track assembly of claim 2, wherein the driving wheel body (12) comprises a notch (121) formed in the outer peripheral surface of the driving wheel body (12) and having an opening facing the radial outer side of the driving wheel body (12), the notch (121) is used for being matched with the outer circumferential surface of the bearing seat (13), the cross-sectional shape of the notch (121) comprises a major arc and two straight line segments connected to two ends of the major arc and tangent to the major arc, and the distance between the two straight line segments away from the end points of the major arc is smaller than the outer circumferential diameter of the bearing seat (13).

4. The vehicle track assembly of claim 2, wherein the material of the self-lubricating bearing sleeve (14) is a lightweight polymeric material, a lightweight composite material, or a copper-based self-lubricating material.

5. The vehicle track assembly of any one of claims 1 to 4, wherein the vehicle track assembly is a delta track assembly, the track (3) is a rubber track, and the track teeth are rubber track teeth.

6. A vehicle comprising a vehicle track assembly as claimed in any one of claims 1 to 5.