Crawler assembly

Abstract

The application discloses a track assembly, comprising a plurality of track drive wheel groups, a track walking frame and a track, wherein the plurality of track drive wheel groups are arranged on the track walking frame respectively, the track drive wheel group comprises a first cross beam, an adjusting assembly, a first driving device and a second driving device, the first cross beam is movably connected with the track walking frame, one end of the adjusting assembly is hinged to the first cross beam, the adjusting assembly is used for supporting the track, one end of the first driving device is hinged to the adjusting assembly, the other end of the first driving device is hinged to one end of the first cross beam which is away from the adjusting assembly, the first driving device is used for driving the adjusting assembly to move, one end of the second driving device is fixedly connected with the track walking frame, the other end of the second driving device is fixedly connected with the first cross beam, and the second driving device is used for driving the first cross beam to move linearly along the track walking frame. Thus, the shape of the track can be changed according to the ground condition, and the passing capacity and the stability of the vehicle are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of engineering machinery, in particular to a track assembly. BACKGROUND

[0002] Compared with tires, tracks have better passing ability and stability in harsh ground environments, but the existing tracks are often fixed in shape, which also leads to poor performance in complex ground environments. SUMMARY

[0003] The present application aims to at least solve one of the above technical problems in the art.

[0004] To this end, one object of the present application is to provide a track assembly, whereby the shape of the track can be changed according to the ground conditions, thereby improving the passing ability and stability of the vehicle.

[0005] To achieve the above object, the first aspect of the present application provides a track assembly, comprising a plurality of track drive wheel groups, a track walking frame and a track, wherein the plurality of track drive wheel groups are arranged on the track walking frame, wherein the track drive wheel group comprises a first cross beam, an adjusting assembly, a first driving device and a second driving device, wherein the first cross beam and the track walking frame are movably connected; the adjusting assembly and one end of the first cross beam are hinged, wherein the adjusting assembly is used to support the track; one end of the first driving device and the adjusting assembly are hinged, and the other end of the first driving device and one end of the first cross beam away from the adjusting assembly are hinged, wherein the first driving device is used to drive the adjusting assembly to move; one end of the second driving device and the track walking frame are fixedly connected, and the other end of the second driving device and the first cross beam are fixedly connected, wherein the second driving device is used to drive the first cross beam to move linearly along the track walking frame.

[0006] According to the track assembly of the present application, the relative position between the track drive wheel group and the track walking frame can be adjusted according to the ground conditions, and the shape of the track can be changed by adjusting the shape of the track drive wheel group.

[0007] In addition, the track assembly according to the above embodiments of the present application can also have the following additional technical features:

[0008] In one embodiment of the present application, the adjusting assembly comprises a second cross beam and a driving wheel, wherein one end of the second cross beam is hinged with the first driving device and the first cross beam respectively, and the other end of the second cross beam is pivotally connected with the driving wheel, wherein the driving wheel is used to support the track.

[0009] In an embodiment of the present application, the track walking frame comprises a first fixed plate, a second fixed plate, a third fixed plate and a plurality of third cross beams, wherein the first fixed plate, the second fixed plate and the third fixed plate are sequentially and equidistantly arranged; the middle part of the third cross beam penetrates through the second fixed plate, and the two ends of the third cross beam are fixedly connected with the first fixed plate and the third fixed plate respectively, wherein the third cross beam is movably connected with the track driving assembly.

[0010] In an embodiment of the present application, the first cross beam is provided with a through hole penetrating through the two ends thereof, and the first cross beam is sleeved on the outer wall of the third cross beam through the through hole.

[0011] In an embodiment of the present application, the cross section of the through hole and the cross section of the third cross beam are both in T shape or both in H shape.

[0012] In an embodiment of the present application, the second driving device is fixedly connected with the end of the first cross beam away from the second fixed plate.

[0013] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0014] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the appended drawings.

[0015] Figure 1 It is a structural schematic diagram of a track assembly according to an embodiment of the present application;

[0016] Figure 2 It is a structural schematic diagram of a track assembly according to another embodiment of the present application;

[0017] Figure 3 It is a structural schematic diagram of a track driving wheel group of a track assembly according to an embodiment of the present application;

[0018] Figure 4 It is a structural schematic diagram of a track walking frame of a track assembly according to an embodiment of the present application;

[0019] Figure 5 It is a use effect diagram of a track assembly according to a specific embodiment of the present application;

[0020] Figure 6 It is a use effect diagram of a track assembly according to another specific embodiment of the present application;

[0021] Figure 7 It is a use effect diagram of a track assembly according to another specific embodiment of the present application.

[0022] As shown in the figure:

[0023] 100 - track drive wheel set, 101 - first cross beam, 102 - adjusting assembly, 1021 - second cross beam, 1022 - drive wheel, 103 - first driving device, 104 - second driving device, 105 - through hole;

[0024] 200 - track walking frame, 201 - first fixed plate, 202 - second fixed plate, 203 - third fixed plate, 204 - third cross beam;

[0025] 300 - track. DETAILED DESCRIPTION

[0026] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0027] The track assembly of the embodiments of the present application is described below with reference to the accompanying drawings.

[0028] The track assembly provided by the embodiments of the present application can be applied to light engineering machinery vehicles, such as small harvesters, small weeding machines, small excavators or small conveying vehicles, etc.

[0029] As Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7 shown, the track assembly includes a plurality of track drive wheel sets 100, a track walking frame 200 and a track 300, the plurality of track drive wheel sets 100 (for example, 4 track drive wheel sets 100) are respectively arranged on the track walking frame 200, wherein,

[0030] The track drive wheel set 100 includes a first cross beam 101, an adjusting assembly 102, a first driving device 103 and a second driving device 104, wherein the first cross beam 101 and the track walking frame 200 are movably connected.

[0031] The adjusting assembly 102 is hinged to one end of the first cross beam 101, wherein the adjusting assembly 102 is used to support the track 300.

[0032] One end of the first driving device 103 is hinged to the adjusting assembly 102, and the other end of the first driving device 103 is hinged to the end of the first cross beam 101 away from the adjusting assembly 102, wherein the first driving device 103 is used to drive the adjusting assembly 102 to move.

[0033] One end of the second driving device 104 is fixedly connected with the crawler walking frame 200, and the other end of the second driving device 104 is fixedly connected with the first cross beam 101, wherein the second driving device 104 is used to drive the first cross beam 101 to move linearly along the crawler walking frame 200.

[0034] It should be noted that in the crawler assembly in the embodiment of the present application, the crawler drive wheel set 100 can be connected to the control system of the light engineering machinery vehicle, for example, the crawler drive wheel set 100 is connected to the central control system of the small harvester, the small weeding machine, the small excavator or the small conveying vehicle.

[0035] The crawler assembly in the embodiment of the present application can include four crawler drive wheel sets 100, one crawler walking frame 200 and one crawler 300, and the four crawler drive wheel sets 100 are used to support and drive the movement of the crawler 300.

[0036] Specifically, any two of the four crawler drive devices 100 are symmetrically arranged on the upper part of the crawler walking frame 200, and the remaining two of the four crawler drive devices 100 are symmetrically arranged on the lower part of the crawler walking frame 200, and the two crawler drive devices on the same side in the vertical direction are also symmetrically arranged.

[0037] When the user operates the small harvester or the small weeding machine provided with the crawler assembly of the embodiment of the present application, if the ground is relatively flat and muddy, for example, in a muddy paddy field or grassland, the user can control the two upper crawler drive devices 100 to move close to each other and control the two lower crawler drive devices 100 to move away from each other by operating the central control system of the small harvester or the small weeding machine, at this time, the crawler 300 will be a right trapezoid, on the one hand, the ground pressure of the right trapezoidal crawler 300 is small, which can avoid the harvester or the weeding machine from sinking into the mud, on the other hand, the right trapezoidal crawler 300 can make the harvester or the weeding machine more stable during driving, thereby ensuring more reliable work of the harvester or the weeding machine.

[0038] When the user operates the small excavator or the small conveying vehicle provided with the crawler assembly of the embodiment of the present application, if the ground is relatively rugged and hard, for example, on a large-scale damaged road surface or a bumpy ground surface with half-buried boulders, the user can control the two upper crawler drive devices 100 to move away from each other and control the two lower crawler drive devices 100 to move close to each other by operating the central control system of the small excavator or the small conveying vehicle, at this time, the crawler 300 will be an inverted trapezoid, the inverted trapezoidal crawler 300 has good climbing and passing ability, which can make the small excavator or the small conveying vehicle quickly pass through the uneven ground surface.

[0039] When the user operates the small harvester, the small weeder, the small excavator or the small transport vehicle equipped with the track assembly of the embodiment of the present application, if the ground is relatively rugged and the texture is relatively muddy, for example, when driving on the ground near the foot of the mountain, the soil on the ground near the foot of the mountain is relatively soft, and often half-buried stones belonging to the mountain, the user can control the two upper 4 track drive devices 100 to move along the track direction of movement, and operate the two lower 4 track drive devices 100 to move along the opposite direction of movement, at this time, the track 300 is a parallelogram, the track 300 in parallelogram has lower ground pressure, avoids the small harvester, the small weeder, the small excavator or the small transport vehicle sinking into the soil, and has better passing ability, so that the small harvester, the small weeder, the small excavator or the small transport vehicle can quickly and flexibly pass through the ground near the foot of the mountain.

[0040] As a possibility, in order to ensure that the track 300 will not fall off when using the track assembly of the embodiment of the present application, the user can add a tensioning structure of the track 300 to the track walking frame 200, the tensioning structure is arranged between the two upper 4 track drive wheel groups 100, and the tensioning structure and the track walking frame 200 are fixedly connected, and the tensioning structure and the 4 track drive assembly 100 support the track 300 together.

[0041] In addition, it should be noted that when the user needs to adjust the track drive device 100, the user should make the small engineering machinery vehicle in a stationary or low-speed driving state.

[0042] In summary, the track assembly disclosed in the embodiment of the present application can change the shape of the track according to the ground conditions, thereby improving the passing ability and stability of the vehicle.

[0043] In order to better explain the present application, in an embodiment of the present application, as shown in Figure 3 The adjusting assembly 102 includes a second cross beam 1021 and a drive wheel 1022, wherein,

[0044] One end of the second cross beam 1021 is hinged with the first drive device 103 and the first cross beam 101 respectively, and the other end of the second cross beam 1021 is pivotally connected with the drive wheel 1022, wherein the drive wheel 1022 is used to support the track 300.

[0045] Specifically, on the one hand, the shape of the track 300 is adjusted by moving the track drive assembly 100 on the track walking frame 200, and on the other hand, the shape of the track 300 is further adjusted more accurately by adjusting the adjusting assembly 102.

[0046] When it is needed to adjust the distance of the track 300 in the transverse direction, the first driving device 103 is elongated, so that the second crossbeam 1021 rotates along the axis of the hinge between the second crossbeam 1021 and the first crossbeam 101 towards the direction away from the first crossbeam 101.

[0047] When it is needed to adjust the distance of the track 300 in the longitudinal direction, the first driving device 103 is shortened, so that the second crossbeam 1021 rotates along the axis of the hinge between the second crossbeam 1021 and the first crossbeam 101 towards the direction close to the first crossbeam 101.

[0048] For better explanation of the present application, in one embodiment of the present application, as shown in Figure 4 the track walking frame 200 comprises a first fixed plate 201, a second fixed plate 202, a third fixed plate 203 and a plurality of third crossbeams 204, wherein,

[0049] The first fixed plate 201, the second fixed plate 202 and the third fixed plate 203 are sequentially and equidistantly arranged.

[0050] The middle part of the third crossbeam 204 penetrates the second fixed plate 202, and the two ends of the third crossbeam 204 are fixedly connected with the first fixed plate 201 and the third fixed plate 203 respectively, wherein the third crossbeam 204 is movably connected with the track driving assembly 100.

[0051] The first crossbeam 101 is provided with a through hole 105 penetrating the two ends thereof, and the first crossbeam 101 is sleeved on the outer wall of the third crossbeam 204 through the through hole 105.

[0052] The cross section of the through hole 105 and the cross section of the third crossbeam 204 are both T-shaped or both H-shaped.

[0053] The second driving device 104 is fixedly connected with the second fixed plate 202 away from the first crossbeam 101.

[0054] Specifically, when assembling the track walking frame 200, the relevant staff can additionally add reinforcing ribs to the third crossbeams 204, and can also additionally add reinforcing ribs or reinforcing beams to the connection between the first fixed plate 201, the second fixed plate 202, the third fixed plate 203 and the third crossbeams 204, so as to make the track walking frame 200 more firm.

[0055] It should be noted that the number of the third crossbeams 204 is at least 2, and the number thereof should not be too large. On the one hand, too many third crossbeams 204 will increase the cost of the embodiment of the present application, and on the other hand, too many third crossbeams 204 will occupy the effective load of the track driving wheel set 200, thereby significantly reducing the effective load of the embodiment of the present application.

[0056] As a possibility, to ensure that the first cross beam 101 can normally move on the third cross beam 104, the relevant staff need to regularly maintain the first cross beam 101 and the third cross beam 104, for example, the relevant staff regularly use a brush or a high-pressure water gun to regularly clean the dirt on the surface of the third cross beam 104, especially the debris in the gap between the first cross beam 101 and the third cross beam 104.

[0057] In addition, the relevant staff can also use a canvas cover to cover the outer wall of the third cross beam 104 when assembling the track walking frame 200, one end of the canvas cover is connected to the second fixed plate 202 through a connecting piece, and the other end of the canvas cover is connected to the first cross beam 101 through a connecting piece.

[0058] To illustrate the present application, for example, assume that the above-mentioned track assembly is applied to a light excavator, wherein the relevant staff can observe and judge the ground conditions when driving the light excavator, and control the track assembly to change shape through the control panel of the light excavator. For example, when the ground is relatively flat and regular, the relevant staff can adjust the track 300 to be a parallelogram, when the ground is relatively rugged and steep, the relevant staff can adjust the track 300 to be a right trapezoid, and when the ground has more debris, the relevant staff can adjust the track 300 to be an inverted trapezoid.

[0059] In addition, if the light excavator equipped with the track assembly is equipped with an image recognition device, the track assembly can also be connected to the central control system and the image recognition device of the light excavator.

[0060] Specifically, the image recognition device is used to realize real-time monitoring and analysis of the ground conditions by using image recognition technology, and based on the analysis results of the image recognition device for the ground conditions, the light excavator can automatically control the track assembly to change shape.

[0061] It should be noted that when the track assembly changes shape, the light excavator equipped with the track assembly can be in a stationary or low-speed driving state. For example, when the driving speed of the light engineering machinery is below 5 kilometers per hour, the relevant staff or the image recognition device can freely control the track assembly to change shape through the control panel of the light excavator.

[0062] Furthermore, when the light excavator equipped with the track assembly and the image recognition device drives on extremely rugged and steep ground at a speed below 5 kilometers per hour, based on the analysis results of the image recognition device for the ground conditions, the light excavator can forcibly stop the change of the track assembly to avoid accidents such as rollover and dumping of the light excavator.

[0063] In addition, it is also necessary to point out that for the light excavator equipped with the track assembly and the image recognition device, the manual control priority of the track assembly of the light excavator by the relevant staff can be greater than the automatic control priority of the track assembly of the light excavator by the image recognition device.

[0064] In summary, according to the track assembly in the embodiments of the present application, the relative position between the track driving wheel set and the track walking frame can be adjusted according to the ground conditions, and the shape of the track driving wheel set is adjusted to change the shape of the track, thereby finally improving the driving performance of the light engineering machinery using the track assembly.

[0065] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms “center”, “longitudinal”, “transverse”, “length”, “width”, “thickness”, “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential” and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0066] In addition, the terms “first” and “second” are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with “first” and “second” can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of “multiple” is two or more, unless otherwise specifically limited.

[0067] In the present application, unless otherwise specifically defined and limited, the terms “mounting”, “connection”, “connection”, “fixing” and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0068] In the present application, unless specifically defined and limited otherwise, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "over", "above" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0069] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0070] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A crawler track assembly, characterized in that: It includes 4 crawler drive wheel sets, a crawler traveling frame and crawlers, wherein the 4 crawler drive wheel sets are respectively arranged on the crawler traveling frame, wherein: The crawler driving wheel assembly includes a first crossbeam, an adjustment assembly, a first driving device and a second driving device, wherein the first crossbeam and the crawler traveling frame are movably connected; The adjustment assembly is hinged to one end of the first crossbeam, wherein the adjustment assembly is used to support the crawler; One end of the first driving device is hinged to the adjusting assembly, and the other end of the first driving device is hinged to an end of the first beam away from the adjusting assembly, wherein the first driving device is used to drive the adjusting assembly to move; One end of the second driving device is fixedly connected to the crawler traveling frame, and the other end of the second driving device is fixedly connected to the first crossbeam, wherein the second driving device is used to drive the first crossbeam to move linearly along the crawler traveling frame; Any two of the four crawler drive devices are symmetrically arranged on the upper part of the crawler traveling frame, and the remaining two of the four crawler drive devices are symmetrically arranged on the lower part of the crawler traveling frame. At the same time, the two crawler drive devices on the same side in the vertical direction are also symmetrically arranged; Control the two upper track drive devices of the four crawler tracks to move closer to each other, and operate the two lower track drive devices of the four crawler tracks to move away from each other. At this time, the crawler tracks will form a right trapezoid. Control the two upper track drives of the four crawler tracks to move away from each other, and operate the two lower track drives of the four crawler tracks to move closer to each other. At this time, the crawler tracks will form an inverted trapezoidal shape. Controlling the upper two of the four crawler drive devices to move in the direction of the crawler tracks, and operating the lower two of the four crawler drive devices to move in the opposite direction of the crawler tracks, at this time, the crawler tracks form a parallelogram; When the lateral distance of the crawler needs to be adjusted, it is extended through the first driving device; When the distance of the crawler track in the longitudinal direction needs to be adjusted, it is shortened by the first driving device.

2. The crawler track assembly according to claim 1, wherein: The adjustment assembly includes a second crossbeam and a driving wheel, wherein: One end of the second crossbeam is hinged to the first driving device and the first crossbeam respectively, and the other end of the second crossbeam is pivotally connected to the driving wheel, wherein the driving wheel is used to support the crawler track.

3. The crawler track assembly according to claim 1, wherein: The crawler walking frame includes a first fixing plate, a second fixing plate, a third fixing plate and a plurality of third cross beams, wherein: The first fixing plate, the second fixing plate and the third fixing plate are arranged in sequence and at equal intervals; The middle portion of the third crossbeam passes through the second fixing plate, and both ends of the third crossbeam are fixedly connected to the first fixing plate and the third fixing plate respectively, wherein the third crossbeam and the crawler driving wheel set are movably connected.

4. The crawler track assembly according to claim 3, wherein: The first crossbeam is provided with through holes passing through both ends thereof, and the first crossbeam is sleeved on the outer wall of the third crossbeam through the through holes.

5. The crawler track assembly according to claim 4, wherein: The cross sections of the through hole and the third cross beam are both T-shaped or I-shaped.

6. The crawler track assembly according to claim 3, wherein: One end of the second driving device away from the first beam is fixedly connected to the second fixing plate.

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