CN110194226B - Vehicle crawler device and vehicle - Google Patents
Vehicle crawler device and vehicle Download PDFInfo
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- CN110194226B CN110194226B CN201910629375.7A CN201910629375A CN110194226B CN 110194226 B CN110194226 B CN 110194226B CN 201910629375 A CN201910629375 A CN 201910629375A CN 110194226 B CN110194226 B CN 110194226B
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- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 230000003139 buffering effect Effects 0.000 claims abstract description 8
- 230000002093 peripheral effect Effects 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 description 7
- 239000002131 composite material Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000003921 oil Substances 0.000 description 1
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Classifications
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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
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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
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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
-
- 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
- B62D55/30—Track-tensioning means
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The invention discloses a vehicle crawler device and a vehicle, wherein the vehicle crawler device comprises a bracket, a driving wheel assembly, a thrust wheel assembly, a tensioning wheel assembly and a crawler sleeved outside the driving wheel assembly, the thrust wheel assembly and the tensioning wheel assembly, and the tensioning wheel assembly comprises: a tensioning wheel for tensioning the track; the tensioning mechanism is connected between the tensioning wheel and the bracket and used for providing tensioning force for tensioning the crawler belt for the tensioning wheel; and the buffer mechanism is connected between the tensioning wheel and the bracket in a direction different from that of the tensioning mechanism, so as to provide buffer force different from the tensioning force direction for the tensioning wheel when buffering the tensioning wheel. The vehicle crawler device has good stability, and the vehicle using the vehicle crawler device can improve the reliability when passing through complex terrains.
Description
Technical Field
The invention relates to the field of engineering machinery, in particular to a vehicle crawler device and a vehicle.
Background
The tracked vehicle has the advantages of small unit pressure on the ground, small subsidence, strong adhesive capability, good driving passing capability and the like, has stronger adaptability to complex terrains in rescue and relief work, and is more and more widely applied. The requirements for improving the reliability of vehicles are more and more prominent by improving the stability of the crawler device when the crawler device passes through complex terrains.
Disclosure of Invention
The invention aims to provide a vehicle crawler device, which has good stability, and a vehicle using the vehicle crawler device can improve the reliability when passing through complex terrains.
The invention discloses a vehicle crawler device in a first aspect, which comprises a bracket, a driving wheel assembly, a thrust wheel assembly, a tensioning wheel assembly and a crawler sleeved outside the driving wheel assembly, the thrust wheel assembly and the tensioning wheel assembly, wherein the driving wheel assembly, the thrust wheel assembly and the crawler are arranged on the bracket, and the tensioning wheel assembly comprises:
A tensioning wheel for tensioning the track;
the tensioning mechanism is connected between the tensioning wheel and the bracket and used for providing tensioning force for tensioning the crawler belt for the tensioning wheel;
and the buffer mechanism is connected between the tensioning wheel and the bracket in a direction different from that of the tensioning mechanism, so as to provide buffer force different from the tensioning force direction for the tensioning wheel when buffering the tensioning wheel.
In some embodiments, the buffer mechanism comprises a first rod, a buffer block and a second rod, wherein the first rod is connected with the tensioning wheel, the first end of the second rod is hinged with the support, the first rod and the second rod are respectively provided with a hollow part, the second end of the first rod and the second end of the second rod are in sliding fit along the axial direction of the first rod and the second rod, the hollow parts of the first rod and the second rod form a cavity, and the buffer block is arranged in the cavity.
In some embodiments, the buffer block is provided with a pin hole, one end of the cavity is provided with a pin shaft matched with the pin hole, and the pin shaft is arranged along the axial direction of the first rod and the second rod and is fixed relative to the first rod or the second rod.
In some embodiments, the track includes track teeth disposed on an inner side thereof, and the drive wheel assembly includes:
the driving wheel body is rotatably arranged on the bracket;
The driving rollers are distributed at intervals along the outer peripheral surface of the driving wheel body, are rotatable relative to the driving wheel body, and have rotation axes parallel to the rotation axes of the driving wheel body and are used for being meshed with the crawler belt teeth to drive the crawler belt.
In some embodiments, the drive wheel assembly further comprises a plurality of support structures mounted on the outer peripheral surface of the drive wheel body at intervals, the support structures comprising bearing blocks and self-lubricating bearing sleeves mounted within the bearing blocks, the plurality of drive rollers correspondingly mounted in the self-lubricating bearing sleeves of the plurality of support structures.
In some embodiments, the driving wheel body comprises a notch formed in the outer peripheral surface of the driving wheel body and opened towards the radial outer side of the driving wheel body, the notch is used for being matched with the outer peripheral surface of the bearing seat, the cross section of the notch comprises a major arc and two straight line segments connected to two ends of the major arc and tangential to the major arc, and the distance between the end points of the two straight line segments away from the major arc is smaller than the outer peripheral diameter of the bearing seat.
In a second aspect, the invention discloses a vehicle comprising a vehicle track assembly as described.
In some embodiments, along the forward direction of the vehicle, the tensioning wheel assembly is disposed on the front side of the thrust wheel assembly, the vehicle crawler device further comprises a thrust guide wheel assembly disposed on the rear side of the thrust wheel assembly, the thrust guide wheel assembly comprises a connecting frame, a thrust wheel and a guide wheel, the thrust wheel and the guide wheel are rotatably connected to the connecting frame, the connecting frame is swingably connected to the support, and the connecting frame swings around a transverse direction perpendicular to the forward direction of the vehicle.
In some embodiments, the guide wheel comprises a guide wheel rod and two guide wheel bodies rotatably connected to both ends of the guide wheel rod, and the guide wheel rod is swingably connected to the connecting frame around the advancing direction of the vehicle.
According to the vehicle crawler device provided by the invention, the buffer mechanism with the direction different from that of the tensioning mechanism is arranged and is used for providing buffer force with the direction different from that of the tensioning force when the tensioning wheel is buffered, so that the stability of the tensioning wheel is improved, the impact of the tensioning wheel on the axial force and the non-axial force of the tensioning mechanism along the tensioning mechanism is reduced, and the stability and the reliability of the vehicle crawler device when passing through complex terrains are improved.
The vehicle using the vehicle crawler device has corresponding beneficial effects.
Other features of the present invention and its advantages 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 application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic view of a track assembly for a vehicle according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of the track assembly of the vehicle of FIG. 1 with the track removed;
FIG. 3 is a schematic view of the frame of the track assembly of the vehicle of FIG. 1;
FIG. 4 is a schematic view of a portion of the tensioner assembly of FIG. 1;
FIG. 5 is an exploded view of the buffer mechanism of the tensioner assembly of FIG. 4;
FIG. 6 is a cross-sectional view of a cushioning mechanism of the tensioner assembly of FIG. 4;
FIG. 7 is a schematic view of a tensioning mechanism of the tensioning wheel assembly of FIG. 4;
FIG. 8 is a schematic view in partial cross-section of a drive wheel of the vehicle track assembly of FIG. 1;
FIG. 9 is an enlarged partial schematic view of the portion A of the drive wheel of FIG. 8;
FIG. 10 is a schematic view of the driving wheel body of the driving wheel assembly shown in FIG. 2;
FIG. 11 is a schematic view of a notch of the driving wheel shown in FIG. 10;
FIG. 12 is a schematic view of the self-lubricating bearing housing of the drive wheel of FIG. 9;
FIG. 13 is a schematic view of the bearing housing of the drive wheel shown in FIG. 9;
FIG. 14 is a schematic structural view of a steerable wheel assembly of the vehicle track assembly shown in FIG. 1;
fig. 15 is an exploded view of the branch guide wheel assembly shown in fig. 14.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative 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 in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 1 to 4, the crawler belt device for a vehicle of the present embodiment includes a bracket 3, a driving wheel assembly 2 mounted on the bracket 3, a thrust wheel assembly 5, a tension wheel assembly, and a crawler belt 1 sleeved outside the driving wheel assembly 2, the thrust wheel assembly 5, and the tension wheel assembly. The driving wheel assembly is used for driving the crawler belt 1 to rotate, so that the crawler belt device of the vehicle is driven to walk. The thrust wheel assembly 5 is mounted below the vehicle track assembly for carrying the load of the vehicle track assembly.
The tensioning wheel assembly comprises a tensioning wheel 6, a tensioning mechanism 7 and a buffer mechanism 8. The tensioning wheel 6 is used for tensioning the crawler belt 1; a tensioning mechanism 7 is connected between the tensioning wheel 6 and the bracket 3 for providing tensioning force for tensioning the crawler belt to the tensioning wheel 6; the buffer mechanism 8 is connected between the tension pulley 6 and the bracket 3 in a direction different from the tension mechanism 7 to provide a buffer force different from the tension force direction to the tension pulley 6 when buffering the tension pulley 6. The tensioning mechanism 7 and the buffer mechanism 8 apply forces to the tensioning wheel 6 from different angles, respectively.
Because tensioning mechanism 7 also has certain cushioning effect to take-up pulley 6 along the tensioning force direction to take-up pulley 6 of the vehicle crawler belt assembly of this embodiment can have the buffering of two different directions, when meetting complicated topography, the take-up pulley can be more steady reliable. Meanwhile, as the buffer mechanism 8 and the tensioning mechanism 7 form a certain included angle, the buffer mechanism 8 can buffer the axial force of the tensioning mechanism 7 of the tensioning wheel 6 along the axial direction of the tensioning mechanism 7 and buffer the impact force of the tensioning wheel 6 forming a certain included angle with the axial direction of the tensioning mechanism 7, so that the tensioning mechanism 7 is protected, and the stability and the reliability of the vehicle track device when passing through complex terrains are improved.
In some embodiments, as shown in fig. 1 to 3, the bracket 3 may be provided with a connection hole 32 for connecting the tensioning mechanism 7 and a connection hole 33 for connecting the buffering mechanism 8.
In some embodiments, as shown in fig. 4 to 6, the buffer mechanism 8 includes a first rod 81 having a first end connected to the tension pulley 6, a buffer block 82, and a second rod 83 having a first end hinged to the bracket 3, the first rod 81 and the second rod 83 each being provided with a hollow portion, the second end of the first rod 81 and the second end of the second rod 83 being slidably fitted in an axial direction of the first rod 81 and the second rod 83, and the hollow portions of the first rod 81 and the second rod 83 forming a cavity, the buffer block 82 being provided in the cavity. The present embodiment presses the buffer block 82 by the relative sliding of the first rod 81 and the second rod 83 at the time of buffering, so that the tensioning wheel 6 can be conveniently and effectively buffered,
In some embodiments, as shown in fig. 5 and 6, the buffer block 82 is provided with a pin hole, one end of the cavity is provided with a pin shaft 84 engaged with the pin hole, and the pin shaft 84 is disposed along the axial direction of the first rod 81 and the second rod 83 and fixed with respect to the first rod 81 or the second rod 83. The pin 84 may be provided on an end surface within the cavity of the first rod 81 or the second rod 83. By providing the pin 84, positioning of the buffer block 82 during installation of the buffer mechanism 8 is facilitated, and positioning of the buffer block 82 during operation of the buffer mechanism 8 is also facilitated.
In some embodiments, as shown in fig. 7, the tensioning mechanism 8 includes a diaphragm accumulator 72, the diaphragm accumulator 72 being in communication with the hydraulic circuit of the tensioning ram 71, the pressure of the hydraulic oil of the hydraulic circuit of the tensioning ram 71 being dynamically balanced with the gas pressure within the diaphragm accumulator by the diaphragm of the diaphragm accumulator 72. When the tensioner 6 is impacted, the tensioner cylinder 71 is compressed, the overall line pressure increases, the gas in the diaphragm accumulator 72 is compressed, hydraulic oil is pressed into the diaphragm accumulator 72, and the gas in the diaphragm accumulator 72 is compressed by the diaphragm. Similarly, as the overall line pressure decreases, the gas in diaphragm accumulator 72 expands, forcing oil into the system circuit, increasing the tension of idler 6 against track 1. The impact resistance of the tensioning wheel assembly 6 can be improved through the arrangement, so that the tensioning wheel assembly 6 has certain feedback capacity on tensioning of the crawler belt 1, and tensioning stability is improved. In this embodiment, the tensioner assembly further includes a valve assembly 73 that connects the diaphragm accumulator 72 to the tensioner cylinder 71.
In some embodiments, as shown in fig. 1, 2, 8-10, track 1 includes track teeth disposed on an inner side thereof, and drive wheel assembly 2 includes a drive wheel body 22 and a plurality of drive rollers 21. The driving wheel body 22 is rotatably arranged on the bracket 3; a plurality of driving rollers 21 are spaced apart along the outer peripheral surface of the driving wheel body 22, rotatable relative to the driving wheel body 22 and having a rotational axis parallel to the rotational axis of the driving wheel body 22 for engagement with track teeth to drive the track 1.
By driving the driving wheel body 22 to rotate relative to the bracket 3, the driving wheel body 22 drives the driving roller 21 to revolve around the rotation axis of the driving wheel body 22, and the driving roller 21 is meshed with the crawler teeth of the crawler 1 when revolving, so that the crawler 3 is driven to rotate to drive the vehicle to walk.
When the driving roller 21 of the driving wheel assembly 2 of the embodiment is meshed with the track teeth to drive the track 1, the driving roller 21 can revolve around the rotation axis of the driving wheel body 21 and also can rotate around the self axis, so that the driving roller is beneficial to realizing the meshing with the track teeth, only through radial transmission of load, reduction of relative sliding, reduction of sliding friction between the driving wheel assembly 2 and the track 1, reduction of heat generated by friction, improvement of the service environment of the track 1 and improvement of the service life of the track 1.
In some embodiments, as shown in fig. 8 to 13, the driving wheel assembly 2 further includes a plurality of support structures mounted on the outer circumferential surface of the driving wheel body 21 at intervals, the support structures including bearing seats 23 and self-lubricating bearing sleeves 24 mounted in the bearing seats 23, and the plurality of driving rollers 21 are correspondingly mounted in the self-lubricating bearing sleeves 24 of the plurality of support structures. The bearing housing 23 may be provided with an installation hole as shown in fig. 13, the self-lubricating bearing housing 24 may be provided with a cylinder body fitted with the installation hole of the bearing housing 23 as shown in fig. 12, the self-lubricating bearing housing 24 may be installed into the bearing housing 23 by inserting the cylinder body into the installation hole of the bearing housing 23, and then the supporting structure may be installed onto the driving wheel body 22 by installing the bearing housing 23 onto the outer circumferential surface of the driving wheel body 22. The driving roller 21 may include a driving portion for engaging with the track teeth 31 and journal portions for mounting at both ends of the driving portion, and the rotation of the driving roller 21 may be achieved by mounting the journal portions in the self-lubricating bearing housing 24 of the supporting structure. The driving roller 21 of this embodiment is simple in installation structure, convenient and reliable.
In some embodiments, the material of the self-lubricating bearing housing 24 is a lightweight polymeric material or a lightweight composite material. The self-lubricating bearing sleeve can be a copper-based self-lubricating bearing sleeve, and also can be made of a high polymer material, a composite material or the like, and the self-lubricating bearing sleeve 24 of the embodiment adopts a light high polymer material or a light composite material, so that the rotational inertia of the driving wheel assembly 2 is reduced, and the structure is light.
In some embodiments, as shown in fig. 10 and 11, the driving wheel 22 includes a notch 221 provided on an outer peripheral surface thereof and opening toward a radial outer side of the driving wheel 22, the notch 221 is configured to mate with an outer peripheral surface of the bearing seat 23, a cross-sectional shape of the notch 221 includes a major arc and two straight line segments connected at both ends of the major arc and tangential 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 an outer peripheral diameter of the bearing seat 23. This setting, the installation of bearing frame 23 of being convenient for, distance L is less than the excircle diameter of bearing frame 23 simultaneously, helps the installation of bearing frame 23 again firm, prevents that bearing frame 23 from coming off from opening 221 at the during operation. In addition, design the opening into major arc and straight line section complex form, the major arc section helps closely laminating with the excircle surface of bearing frame 23, and the setting of straight line section is convenient for the bearing frame 23 promptly and inserts opening 221 simultaneously, also is convenient for realize the processing to opening 221.
In some embodiments, the vehicle track assembly is a triangular track assembly, the track 1 is a rubber track 1, and the track teeth are rubber track teeth. The vehicle track assembly of the embodiment is favorable for playing the advantages of light structural weight, high running speed, strong off-road capability and the like of the triangular track assembly. Meanwhile, the heating problem of the rubber crawler of the triangular crawler assembly is avoided, so that the running speed and bearing capacity of the rubber crawler are improved, the service life of the rubber crawler is prolonged, and the tooth biting problem of the rubber crawler teeth caused by tooth jumping of the rubber crawler is relieved.
In some embodiments, the vehicle track assembly described above is applied to a vehicle.
In some embodiments, as shown in fig. 1,2, 14 and 15, the tension wheel assembly is disposed at the front side of the thrust wheel assembly 5 along the advancing direction of the vehicle, the track device for the vehicle further includes a thrust guide wheel assembly 4 disposed at the rear side of the thrust wheel assembly 5, the thrust guide wheel assembly 4 includes a link frame 42, a thrust wheel 43 and a guide wheel 41, the thrust wheel 43 and the guide wheel 41 are rotatably connected to the link frame 42, the link frame 42 is swingably connected to the bracket 3, and the link frame 42 swings around a transverse direction perpendicular to the advancing direction of the vehicle. In some embodiments, the lateral direction is in a horizontal direction. The supporting guide wheel assembly 4 of the present embodiment connects the guide wheel 41 and the supporting wheel 43 on the same swingable connecting frame 42, so that linkage can be generated between the guide wheel 41 and the supporting wheel 43, the guide wheel 41 can be better adapted and buffered when passing through complex terrain, and meanwhile, the supporting wheel 43 can better support the guide wheel 41, thereby being helpful for preventing the guide wheel 41 from greatly swinging and falling off.
In some embodiments, as shown in fig. 1, 2, 14 and 15, the guide wheel 41 includes a guide wheel lever 44 and two guide wheel bodies rotatably connected to both ends of the guide wheel lever 44, respectively, and the guide wheel lever 44 is swingably connected to the link frame around the advancing direction of the vehicle. The guide wheel bar may be, as shown in fig. 15, swingably connected to the connection frame 42 around the connection pin 45 by being placed in an inverted U-shaped groove of the connection frame 42, then the connection pin 45 is simultaneously inserted into the pin holes of the connection frame 42 and the guide wheel bar 44, and then the end of the connection pin 45 is locked by the locking member 47, so that the guide wheel bar 44 may be connected to the connection frame 42 also by the anti-friction sleeve 46. The guide wheel 41 of the embodiment can swing around the connecting frame along with the connecting frame 42, and the guide wheel 41 can swing around the advancing direction relative to the connecting frame, so that the swinging freedom degree of the guide wheel 41 is increased, and the flexibility of the guide wheel 41 and the adaptability to complex terrains are improved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same; while the invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present invention or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the invention, it is intended to cover the scope of the invention as claimed.
Claims (8)
1. The utility model provides a vehicle crawler attachment, includes support (3), install in drive wheel assembly (2), thrust wheel assembly (5), take-up pulley assembly on support (3), and the cover is established drive wheel assembly (2), thrust wheel assembly (5) with track (1) outside the take-up pulley assembly, its characterized in that, the take-up pulley assembly includes:
-a tensioning wheel (6) for tensioning the track (1);
A tensioning mechanism (7) connected between the tensioning wheel (6) and the bracket (3) for providing tensioning force for tensioning the crawler belt (1) to the tensioning wheel (6) and buffering the tensioning wheel along the tensioning force direction;
Buffer gear (8), with tensioning mechanism (7) direction is different connect tensioning wheel (6) with between support (3), so as to right when tensioning wheel (6) buffering is to tensioning wheel (6) provide with the buffer force that tensioning force direction is different, buffer gear (8) include first pole (81), buffer block (82) and first end that tensioning wheel (6) are connected with support (3) articulated second pole (83), first pole (81) with second pole (83) all are equipped with the well hollow part, the second end of first pole (81) with the second end of second pole (83) is followed first pole (81) with the well hollow part formation cavity of second pole (83) just first pole (81), buffer block (82) are established in the cavity.
2. The vehicle track arrangement of claim 1, characterized in that the buffer block (82) is provided with a pin hole, one end of the cavity is provided with a pin shaft (84) matched with the pin hole, and the pin shaft (84) is arranged along the axial direction of the first rod (81) and the second rod (83) and is fixed relative to the first rod (81) or the second rod (83).
3. The vehicle track arrangement according to claim 1, wherein the track (1) comprises track teeth provided on an inner side thereof, and the drive wheel assembly (2) comprises:
a driving wheel body (22) rotatably arranged on the bracket (3);
And a plurality of driving rollers (21) which are distributed at intervals along the outer peripheral surface of the driving wheel body (22), are rotatable relative to the driving wheel body (22) and have rotation axes parallel to the rotation axes of the driving wheel body (22) and are used for being meshed with the crawler teeth to drive the crawler belt (1).
4. A vehicle track assembly as claimed in claim 3, wherein the drive wheel assembly (2) further comprises a plurality of support structures mounted at intervals on the peripheral surface of the drive wheel body (22), the support structures comprising bearing blocks (23) and self-lubricating bearing sleeves (24) mounted within the bearing blocks, the plurality of drive rollers (21) being correspondingly mounted in the self-lubricating bearing sleeves (24) of the plurality of support structures.
5. The crawler belt device for vehicles according to claim 4, wherein the driving wheel body (22) comprises a notch (221) provided on an outer peripheral surface thereof and opening toward a radial outer side of the driving wheel body (22), the notch (221) being for cooperation with an outer peripheral surface of the bearing housing (23), the notch (221) having a cross-sectional shape including a major arc and two straight line segments connected at both ends of the major arc and tangential to the major arc, a distance between end points of the two straight line segments distant from the major arc being smaller than an outer peripheral diameter of the bearing housing.
6. A vehicle comprising a vehicle track assembly as claimed in any one of claims 1 to 5.
7. The vehicle according to claim 6, characterized in that the tensioning wheel assembly is arranged on the front side of the thrust wheel assembly (5) in the forward direction of the vehicle, the vehicle crawler further comprises a thrust guiding wheel assembly (4) arranged on the rear side of the thrust wheel assembly (5), the thrust guiding wheel assembly (4) comprises a connecting frame (42), a thrust wheel (43) and a guiding wheel (41), the thrust wheel (43) and the guiding wheel (41) are rotatably connected to the connecting frame (42), the connecting frame (42) is swingably connected to the bracket (3), and the connecting frame (42) swings around a transverse direction perpendicular to the forward direction of the vehicle.
8. The vehicle according to claim 7, characterized in that the guide wheel comprises a guide wheel lever (44) and two guide wheel bodies rotatably connected to both ends of the guide wheel lever (44), respectively, the guide wheel lever (44) being swingably connected to the connecting frame (42) around the advancing direction of the vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910629375.7A CN110194226B (en) | 2019-07-12 | 2019-07-12 | Vehicle crawler device and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910629375.7A CN110194226B (en) | 2019-07-12 | 2019-07-12 | Vehicle crawler device and vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110194226A CN110194226A (en) | 2019-09-03 |
| CN110194226B true CN110194226B (en) | 2024-08-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910629375.7A Active CN110194226B (en) | 2019-07-12 | 2019-07-12 | Vehicle crawler device and vehicle |
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| Country | Link |
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| CN (1) | CN110194226B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110816701A (en) * | 2019-11-05 | 2020-02-21 | 重庆长安工业(集团)有限责任公司 | Driving structure of driving wheel of triangular crawler wheel |
| CN114516371B (en) * | 2022-03-08 | 2025-05-09 | 中国人民解放军陆军军事交通学院军事交通运输研究所 | Position-adjustable drive wheel assembly |
| CN114514872B (en) * | 2022-04-20 | 2022-07-05 | 江苏科翔制泵有限公司 | Agricultural irrigation transport vehicle with strong obstacle crossing capability and use method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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