CN117485441A - Crawler belt system and agricultural machine - Google Patents

Abstract

The invention relates to the field of vehicles and discloses a track system and a vehicle, wherein the track system comprises a track mounting frame (1), a track support assembly (2), a track wheel train and a track body (6), wherein the track wheel train and the track body are mounted on the track support assembly, the track mounting frame (1) is provided with a mounting frame body (11), a connecting frame (12) rotatably connected to the mounting frame body, and shock absorbers (13) with two ends respectively connected to the connecting frame and the mounting frame body in a pivoted mode, the track support assembly (2) comprises a track support (21) rotatably connected to the mounting frame body (11), the track support is pivotally connected to one end, far away from the connecting frame, of a telescopic driving device, and a relative rotation axis between the track support and the mounting frame body extends through a region surrounded by the track body. The track system can integrally adjust the posture along with the fluctuation of the ground, simultaneously avoids the problem of occupying a large space caused by the posture, and has good structural strength and compactness.

Description

Crawler belt system and agricultural machine

Technical Field

The present invention relates to the field of vehicles, and in particular to a track system. On the basis, the invention also relates to an agricultural machine comprising the crawler belt system.

Background

Compared with a wheel type running system, the crawler running system can keep good trafficability (difficult to sink) when walking on wet and rotten ground, and has better ditch crossing and ridge crossing capabilities. Therefore, crawler travel systems are widely used in agricultural machines such as tractors and paddy field work machines. Currently, crawler travel systems mainly include two major categories, the whole trolley type and the floating trolley type. The whole trolley type crawler belt system forms a whole, and has simple structure and good reliability; the thrust wheel of the floating trolley type crawler belt system can be adjusted along with the ground in a certain range, so that the ground contact area can be increased, and the floating trolley type crawler belt system has better trafficability, but poorer trafficability to larger ditches and ridges.

For example, the prior art provides a front track for a full drive traction chassis that includes a track, a track drive mechanism capable of driving the track in a rotational motion to effect travel of the vehicle, and a lifting mechanism. By providing the lifting mechanism, the front end of the crawler belt can be lifted or lowered when needed, so that the capability of crossing obstacles and ravines is improved.

However, the above prior art has drawbacks: on the one hand, as the lifting mechanism is arranged outside (on the upper side) of the area surrounded by the track, the track and the track driving mechanism need to rotate around a circular arc path with a larger curvature radius relative to the vehicle body in the adjusting process, and the rotation driving device and the track bracket are arranged relatively independently, so that the lifting mechanism occupies a larger space, and the structural strength and the compactness are difficult to meet the actual operation requirement; on the other hand, although the passability can be improved by driving the front end of the crawler belt up or down by using the lifting mechanism, it is obviously unnecessary for the ground surface where the fluctuation is small to integrally lift or lower the front end of the crawler belt, otherwise it may be impossible to provide sufficient grip due to the reduction of the ground contact area.

Disclosure of Invention

The invention aims to solve the problems that the crawler belt system occupies a large space and the structural strength and the compactness are difficult to meet the actual operation requirement in the prior art, and provides the crawler belt system which can integrally adjust the posture along with the fluctuation of the ground, simultaneously avoid the problem of occupying a large space caused by the fluctuation of the ground and has good structural strength and compactness.

To achieve the above object, an aspect of the present invention provides a track system comprising:

a track mount having a mount body for connection to a vehicle body, a link rotatably connected to the mount body, and a shock absorber having both ends pivotally connected to the link and the mount body, respectively, a pivotal connection point between the shock absorber and the link being spaced apart from a pivotal connection point between the link and the mount body so that the link and the mount body tend to be maintained in a predetermined relative rotational position by a restoring force of the shock absorber, the link being further pivotally connected with a telescopic driving means;

a track frame assembly including a track frame rotatably connected to the mounting frame body, the track frame being pivotally connected to an end of the telescopic driving means remote from the link frame, and a pivotal connection point between the telescopic driving means and the track frame being spaced apart from a rotational connection point between the track frame and the mounting frame body such that there is a relative rotational angle between the track frame and the mounting frame body determined by a telescopic length of the telescopic driving means and a deformation amount of the shock absorber; the method comprises the steps of,

the crawler body surrounds a crawler wheel train arranged on the crawler support assembly and is matched with the crawler wheel train, and a relative rotation axis between the crawler support and the mounting frame body extends through a region surrounded by the crawler body.

Preferably, the track frame is provided with a pin extending through the mounting frame body and the connecting frame, so that a rotation connection point between the connecting frame and the mounting frame body is coaxial with a rotation connection point between the track frame and the mounting frame body.

Preferably, the mounting frame body is provided with a limiting structure for limiting the limiting rotation position of the connecting frame, and/or the mounting frame body is provided with a first angle sensor for measuring the rotation angle of the connecting frame relative to the mounting frame body and a second angle sensor for measuring the rotation angle of the pin shaft relative to the mounting frame body.

Preferably, the telescopic drive means is a ram and the ram extends in the area surrounded by the track body and/or the highest point of the shock absorber does not exceed the height of the corresponding portion of the track body.

Preferably, the track frame extends at least partially obliquely upward in a direction away from the track mount from a rotational connection point between the track frame and the mount body.

Preferably, the track wheel train comprises a driving wheel assembly, a fixed supporting wheel, a riding wheel and a tensioning wheel assembly which are respectively matched with the track body, wherein the driving wheel assembly comprises a power device, a speed reducer, a driving wheel in transmission joint with the track body through gear teeth and auxiliary supporting wheels respectively arranged on two sides of the driving wheel, and the power device, the speed reducer and the driving wheel are coaxially arranged.

Preferably, the portion of the track body that is operated to engage the underside of the track train includes a first ground engaging track segment that extends at an angle to one another and a second ground engaging track segment that is relatively remote from the track mount to enable selective grounding of the first and second ground engaging track segments by telescoping of the telescoping drive.

Preferably, the track train includes a floating wheel assembly including a pair of swing arms spaced apart from each other and pivotally connected to the track frame, respectively, and a floating thrust wheel rotatably mounted on the swing arms and cooperating with the second ground engaging track segment, ends of the swing arms remote from the floating thrust wheel being interconnected by a damper spring.

Preferably, the floating roller mounted on one of the swing arms cooperates with an interface portion of the first and second ground engaging track segments.

A second aspect of the invention provides an agricultural machine comprising a track system as described above.

Through the technical scheme, the track system disclosed by the invention can drive the track bracket assembly, the track wheel system arranged on the track bracket assembly and the track body supported by the track wheel system to integrally rotate relative to the track mounting frame by the telescopic driving device, so that the gesture adjustment is realized, and the track system is suitable for the ground fluctuation working condition in an active adjustment mode. Wherein, be used for driving the relative track mounting bracket pivoted flexible drive arrangement of track support subassembly to be connected to the link of track mounting bracket and the track support of track support subassembly by the pivot respectively, the relative axis of rotation of track support subassembly and track mounting bracket passes the region that the track body encircleed, thereby reduced this relative axis of rotation position, the motion path of this track system has less radius of curvature in the gesture adjustment in-process, and flexible drive arrangement is connected as an organic wholely with track support subassembly, be convenient for be arranged in the region that the track body encircleed, can effectively avoid taking the problem in great space, have good structural strength and compactness.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

FIG. 1 is a front view of a track system according to a preferred embodiment of the present invention;

FIG. 2 is an exploded view of the track system of FIG. 1;

FIG. 3 is an exploded view of a track mount of the track system of FIG. 2;

FIG. 4 is an exploded view of the track frame assembly of the track system of FIG. 2;

FIG. 5 is a perspective view of a drive wheel assembly of the track system of FIG. 2;

FIG. 6 is an exploded view of the idler assembly of the track system of FIG. 2;

fig. 7 is a perspective view of the track system of fig. 2 with the track wheel assembly.

Description of the reference numerals

1-a track mounting rack; 11-a mounting frame body; 12-connecting frames; 13-a damper; 14-an oil cylinder; 15-a first angle sensor; 16-a second angle sensor;

2-track frame assembly; 21-track frame; 22-pin shafts; 23-fixing a thrust wheel; 24-riding wheels;

3-a drive wheel assembly; 31-a power plant; 32-speed reducer; 33-a drive wheel; 34-auxiliary support wheels;

4-a tensioner assembly; 41-tensioning wheel; 42-tensioning a screw; 43-tensioning a bracket; 44-tensioning the nut;

5-a floating wheel assembly; 51-rocker arms; 52-floating thrust wheels; 53-a damper spring;

6-a crawler body; 61-a first ground engaging track segment; 62-a second ground engaging track segment; 63-upper track segments.

Detailed Description

The following describes specific embodiments of the present invention in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.

In the present invention, unless otherwise specified, terms such as "upper, lower, left, and right" and "upper, lower, left, and right" are used generically to refer to the upper, lower, left, and right illustrated in the drawings; "inner and outer" means inner and outer relative to the contour of the respective parts themselves.

Referring to fig. 1 and 2, a track system according to a preferred embodiment of the present invention may be used in agricultural machines such as tractors, paddy field work machines, etc., or in various types of suitable construction machines for walking on wet and rotten ground. The track system comprises a track mount 1, a track frame assembly 2, a track train and a track body 6. Wherein, as a mounting basis for the track system, the track mount 1 can be attached to the vehicle body, for example fixedly mounted to the vehicle chassis by means of fasteners such as bolts, whereby the track mount 1 can transfer the vehicle body load to the track system while achieving an overall adjustment (active adjustment and adaptive adjustment) for the track system to accommodate ground heave, the track mount 1 being integrated with the relevant adjustment functions. The track frame assembly 2, which serves as a mounting base for a track train, may be rotatably connected to the track mount 1, thereby being capable of rotating with respect to the track mount 1 under the action of an integrally provided adjustment function on the track mount 1, thereby integrally adjusting the track approach angle or the ground clearance. The track train may include a drive wheel assembly 3, a thrust wheel (e.g., a fixed thrust wheel 23, a floating thrust wheel 52), a riding wheel 24, a tensioning wheel assembly 4, etc., as described later, for supporting the track body 6 and driving the track body 6 in a tensioned state for vehicle travel. The track body 6 may be provided as a track of a common type, such as a toothed rubber track, a wheel-hole track or a friction track, the track body 6 bypassing the track train described above and being supported and tensioned to maintain a suitable degree of tension while being driven by the drive wheel assembly 3 to run in a swivel path. For ease of illustration, with reference to fig. 1, the track body 6 is herein designated as a distinct run section, comprising a first ground engaging track section 61 and a second ground engaging track section 62 running to cooperate with the underside of the track train and an upper track section 63 running to cooperate with the upper side of the track train, wherein the second ground engaging track section 62 is relatively remote from the track mount 1 and has an oblique angle with respect to the first ground engaging track section 61. In the illustrated state, the first ground engaging track segment 61 extends in a horizontal direction, while the second ground engaging track segment 62 extends obliquely upward in a direction away from the first ground engaging track segment 61, thereby facilitating crossing over obstacles in the event of a front ground projection, so that the vehicle has good passing ability.

As shown in connection with fig. 3, in the track system of the present invention, the track mount 1 includes a mount body 11 for connection to a vehicle body, a link 12 rotatably connected to the mount body 11, and a damper 13 pivotally connected at both ends to the mount body 11 and the link 12, respectively, wherein a pivotal connection point between the damper 13 and the link 12 is spaced apart from a pivotal connection point between the link 12 and the mount body 11, for example, a top end of the link 12 is pivotally connected to one end of the damper 13 and a bottom end is rotatably connected to the mount body 11, whereby the mount body 11, the link 12, and the damper 13 are connected to form a stable triangle structure. When the link frame 12 is rotated relative to the mount body 11 by receiving a tensile force from the track frame assembly 2 as described later, the shock absorber 13 is elastically deformed, whereby the track system of the present invention can adaptively adjust its posture as the ground surface fluctuates. By the restoring force of the damper 13, the link 12 and the mount body 11 can be maintained in a predetermined relative rotational position. The connecting frame 12 is also pivotally connected with a telescopic driving device, which may be, for example, an electric push rod, an oil cylinder 14, etc., one end of which may be pivotally connected to one side of the connecting frame 12 facing away from the shock absorber 13, and the other end of which may be pivotally connected to the track frame assembly 2, so as to be capable of driving the track frame assembly 2 to rotate relative to the track mounting frame 1 during telescopic movement, thereby realizing active adjustment of the track posture.

In the track system of the present invention, as shown in connection with fig. 4, the track frame assembly 2 includes a track frame 21 rotatably coupled to the mounting frame body 11. The telescopic drive means such as the oil cylinder 14 is pivotally connected to the track frame 21 at an end remote from the link frame 12 with a pivotal connection point therebetween spaced from a pivotal connection point between the track frame 21 and the mount body 11, whereby a reaction force acting on the track frame 21 due to the ground heave (through the track body 6 and the track train) can be stably transmitted to the link frame 12 and the shock absorber 13 by the telescopic drive means. Meanwhile, as described above, the track frame assembly 2 (and the track wheel train and the track body 6 mounted thereon) can be driven to rotate relative to the track mounting frame 1 by the telescopic action of the telescopic driving device, so as to realize the active adjustment of the track posture. The relative rotation angle between the track frame 21 and the mount body 11 is determined by the telescopic length of the telescopic drive device and the deformation amount of the damper 13.

A track train consisting of, for example, a driving wheel assembly 3, a thrust wheel (e.g., a fixed thrust wheel 23, a floating thrust wheel 52), a riding wheel 24, a tension wheel assembly 4, etc., is mounted on the track frame 21, and a track body 6 is mounted around the track train and is engaged with the track train. Wherein the relative rotational axis between the track frame 21 and the mounting frame body 11 extends through the area surrounded by the track body 6.

The track system provided by the invention can drive the track bracket assembly 2, the track wheel system arranged on the track bracket assembly 2 and the track body 6 supported by the track wheel system to integrally rotate relative to the track mounting frame 1 by a telescopic driving device (such as an oil cylinder 14), so that the attitude adjustment is realized, and the track system is suitable for the ground fluctuation working condition by an active adjustment mode. Wherein, the flexible drive means for driving the relative track frame assembly 2 pivoted of track frame 1 is pivotally connected to link 12 and track frame 21 of track frame assembly 2 of track frame 1 respectively, track frame assembly 2 passes the region that track body 6 encircled with the relative axis of rotation of track frame 1, thereby reduced this relative axis of rotation position, the motion path of this track system has less radius of curvature in the gesture adjustment process, and flexible drive means is connected as an integer with track frame assembly 2, be convenient for be arranged in the region that track body 6 encircled, can effectively avoid taking up the problem of great space, have good structural strength and compactness. For example, in the illustrated preferred embodiment, the ram 14 as the telescopic drive means is arranged to extend in the area surrounded by the track body 6, which is integrally connected with the track frame assembly 2, and is more compact in structure and stronger. Further, although it is possible to arrange the shock absorbers 13 at portions other than the area surrounded by the track body 6, such as at both sides of the track body 6, for convenience of arrangement, it is also possible to improve the compactness of the track body by making the highest point of the shock absorbers 13 not to exceed the height of the corresponding portion of the track body 6. For example, in the view shown in fig. 1, the shock absorber 13 is arranged to extend in a direction substantially parallel to the respective portion of the track body 6, and it does not protrude beyond the respective portion of the track body 6 in the height direction, thereby corresponding to the track body 6 and the area surrounded by it in the height range.

As shown in fig. 1 to 4, in the track system of a preferred embodiment of the present invention, the link frame 12 and the track frame 21 are rotatably connected to the mount body 11 through the same pin 22, whereby the rotational connection point between the link frame 12 and the mount body 11 is coaxial with the rotational connection point between the track frame 21 and the mount body 11. Specifically, the track frame 21 may be provided with a pin 22, and the pin 22 extends through the mounting frame body 11 and the connection frame 12, thereby simplifying the mounting structure between different components and further ensuring that the track body has high compactness. In the assembly process, the track support assembly 2, the driving wheel assembly 3, the tensioning wheel assembly 4, the floating wheel assembly 5 and the track body 6 are connected into a whole, and then are connected to the track mounting frame 1 through the pin shaft 22 and the oil cylinder 14, and the whole formed by the track support assembly 2, the driving wheel assembly 3, the tensioning wheel assembly 4, the floating wheel assembly 5 and the track body 6 can rotate around the pin shaft 22. Wherein, the link 12 of hydro-cylinder 14 one end pivot connection to track mounting bracket 1, the track support 21 of other end pivot connection to track support subassembly 2 to can make the whole relative track mounting bracket 1 that track support subassembly 2, drive wheel subassembly 3, take-up pulley subassembly 4, floating wheel subassembly 5 and track body 6 constitute rotate through concertina movement, thereby can realize the initiative adjustment of track gesture. The cylinder 14 may be replaced by another telescopic driving device such as an electric push rod. The link frame 12 of the track mount 1 is rotatably connected to the mount body 11 by a pin 22 to allow the link frame 12 to rotate relative to the mount body 11; meanwhile, both ends of the shock absorber 13 are pivotally connected to the link 12 and the mounting frame body 11, respectively, to allow the shock absorber 13 to be elastically deformed under the force from the track mounting frame 1 transmitted by the oil cylinder 14, so that the track posture can be adaptively adjusted as the ground surface is fluctuated. Wherein, the mounting frame body 11 may be provided with a limiting structure (not marked) for limiting the limit rotation position of the connecting frame 12.

Further, in order to facilitate accurate adjustment of the track attitude according to the fluctuation conditions of the ground, the track mount 1 may be mounted with sensors for measuring the rotation angle of the link frame 12 and the rotation angle of the track frame 21 relative to the mount body 11 (corresponding to the deformation amount of the shock absorber 13). In the illustrated preferred embodiment, the mounting frame body 11 is mounted with a first angle sensor 15 for measuring the rotation angle of the connection frame 12 relative to the mounting frame body 11 and a second angle sensor 16 for measuring the rotation angle of the pin 22 relative to the mounting frame body 11, wherein the central axis of the first angle sensor 15 may be coaxial with the pin 22, and the measurement end thereof may be connected to the connection frame 12; the second angle sensor 16 may be mounted on the mounting frame body 11, the measuring end thereof may be connected to the pin 22, and the pin 22 is fixedly disposed on the track bracket 21, so that the measured rotation amount of the pin relative to the mounting frame body 11 is the rotation amount of the track bracket 21 relative to the mounting frame body 11, and further the deformation amount of the shock absorber 13 may be obtained.

In operation, when the measured value of the first angle sensor 15 does not exceed the predetermined value thereof, the cylinder 14 maintains its telescopic length without driving the track frame assembly 2 to rotate relative to the track frame 1, adapting to the ground heave by deformation of the shock absorber 13 (and subsequent floating of the floating wheel assembly 5); when the measured value of the first angle sensor 15 exceeds its predetermined value and the measured value of the second angle sensor 16 does not exceed its predetermined value, the oil cylinder 14 changes its telescopic length, thereby driving the track frame assembly 2 to rotate relative to the track mount 1, so that the front end of the track body 6 is lifted up to increase the approach angle or the hypocrown to increase the ground clearance. Even if the measured value of the first angle sensor 15 does not exceed the preset value under the condition of large ground fluctuation, the oil cylinder 14 can change the telescopic length of the oil cylinder to drive the track support assembly 2 to rotate relative to the track mounting frame 1 so as to adapt to the ground condition as long as the measured value of the second angle sensor 16 does not reach the preset value.

In the illustrated preferred embodiment, the track frame 21 is arranged to extend at least partially obliquely upward in a direction away from the track mount 1 from the rotational connection point between the track frame 21 and the mount body 11, thereby being able to accommodate the track body 6 having the first and second ground engaging track sections 61, 62 arranged at a relatively angle, and being able to arrange the rotational connection point between the track frame 21 and the mount body 11 at a relatively low position, facilitating arrangement of components such as telescopic drives of the oil cylinder 14 in the area surrounded by the track body 6. By the telescopic action of the telescopic driving device, the first grounding track section 61 and the second grounding track section 62 can be selectively grounded so as to adapt to different ground working conditions, thereby being convenient for maintaining a large ground contact area and good trafficability under various form conditions.

As previously described, the track train may include fixed idler 23 and idler 24, etc., mounted on track frame 21, as well as integrally mounted drive wheel assembly 3 and idler assembly 4. Wherein the fixed thrust wheel 23 may be engaged with the first ground engaging track segment 61 of the track body 6 and the riding wheel 24 may be engaged with the upper side track segment 63. The drive wheel assembly 3 is used to drive the track body 6 in a rotational path and the idler assembly 4 maintains the track body 6 with the proper degree of tension.

Idler assembly 3 may be of various suitable constructions, for example, may receive power from an engine transmitted by a drive shaft to drive track body 6. Fig. 5 shows a driving wheel assembly 3 in a track system according to a preferred embodiment of the present invention, which includes a power unit 31, a speed reducer 32, a driving wheel 33 and an auxiliary supporting wheel 34 coaxially arranged with each other, wherein the driving wheel 33 is engaged with the track body 6 through gear teeth on the outer circumference thereof and is capable of receiving rotational power from the power unit 31 transmitted by the speed reducer 32 to drive the track body 6 to operate, and the power unit 31 may be, for example, an electric motor. Thereby, space occupation of the track system on the vehicle may be saved. In order to drive the track body 6 more stably, both axial sides of the driving wheel 33 may be provided with auxiliary supporting wheels 34, respectively, to be supported on the track body 6 on both sides of the driving wheel 33, respectively.

Fig. 6 shows a tensioning wheel assembly 4 employed in a preferred embodiment, which tensioning wheel assembly 4 may be mounted at the end of the track frame 21 remote from the drive wheel assembly 3 to tension the track body 6. In particular, the tensioner assembly 4 may include a tensioner 41 mounted on a tensioner screw 42 by a tensioner nut 44 and a tensioner bracket 43, the tensioner 41 being in contact with the track body 6 and being adjustable to move in the plane of rotation of the track bracket 21. One end of the tensioning screw 42 is connected with the track frame 21, the other end is connected with the tensioning nut 44, one side of the tensioning nut 44 is connected with the tensioning frame 43, and the tensioning wheel 41 is mounted on the tensioning frame 43. By adjusting the screw engagement position of the tensioning nut 44 on the tensioning screw 42, the tensioning wheel 41 can be adjusted to extend different lengths relative to the track frame 21 to adjust the degree of tensioning of the track body 6 as desired. It will be appreciated that the tensioner assembly 4 is not limited to the illustrated form of construction, but may be replaced with a rocker-type tensioner mechanism or the like.

Importantly, in the track system of a preferred embodiment of the present invention, the track train further includes a floating wheel assembly 5 mounted on the track frame 21 and having a floating thrust wheel 52 (see fig. 7) floatingly supported within the track body 6 to enable the ground-contacting condition of the track body 6 to be better adjusted with the ground heave to maintain a large ground-contacting area. Therefore, the track system combines the adjustment technology of the integral trolley and the floating trolley, adopts the ankle imitation principle, utilizes the shock absorber 13 and the floating wheel assembly 5 to automatically adjust the posture of the track body 6 along with the fluctuation of the ground in a certain range, and integrally adjusts the pitching state of the track body 6 in a larger range when required, thereby being capable of keeping good trafficability under various ground working conditions.

Specifically, referring to fig. 7, the floating wheel assembly 5 may include a pair of swing arms 51 spaced apart from each other and pivotally connected to the track frame 21, respectively, and floating thrust wheels 52 rotatably mounted on the swing arms 51, respectively, the floating thrust wheels 52 being configured to cooperate with the second ground engaging track segments 62 of the track body 6. At the end remote from the floating thrust wheel 52, the two rocker arms 51 are connected to each other by a damper spring 53. Thus, when the vehicle runs to the ground with the front convex, the second ground engaging track segment 62 of the track body 6 receives the ground reaction force and is transmitted to the floating thrust wheel 52, the swing arm 51 can be pivoted with respect to the track frame 21, whereby the ground contact area of the second ground engaging track segment 62 can be effectively increased. The damper springs 53 are capable of being elastically deformed when the swing arms 51 pivot with respect to the track frame 21, and return the floating thrust wheels 52 to the initial position of engagement with the track body 6 after crossing the ground surface of the front projection.

Further, the floating weight wheel 52 on one of the rocker arms 51 may be mounted to cooperate with the meeting portions of the first and second ground engaging track segments 61, 62, whereby the first and second ground engaging track segments 61, 62 present an angle at the location of the floating weight wheel 52, facilitating the adaptive adjustment of the attitude of the track body 6 to a proper attitude when driving into a raised ground surface, ensuring a large ground engaging area.

On the basis, the invention also provides an agricultural machine such as a tractor, a paddy field working machine and the like comprising the crawler belt system.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, a number of simple variants of the technical solution of the invention are possible, including combinations of individual specific technical features in any suitable way. The various possible combinations of the invention are not described in detail in order to avoid unnecessary repetition. Such simple variations and combinations are likewise to be regarded as being within the scope of the present disclosure.

Claims (10)

1. A track system, comprising:

a track mount (1), the track mount (1) having a mount body (11) for connection to a vehicle body, a link (12) rotatably connected to the mount body (11), and a damper (13) pivotally connected at both ends to the link (12) and the mount body (11), respectively, a pivotal connection point between the damper (13) and the link (12) being spaced apart from a rotational connection point between the link (12) and the mount body (11) so that the link (12) and the mount body (11) tend to be held in a predetermined relative rotational position by a restoring force of the damper (13), the link (12) being further pivotally connected with a telescopic driving means;

a track frame assembly (2), the track frame assembly (2) comprising a track frame (21) rotatably connected to the mounting frame body (11), the track frame (21) being pivotally connected to an end of the telescopic drive remote from the connection frame (12), and a pivotal connection point between the telescopic drive and the track frame (21) being spaced from a rotational connection point between the track frame (21) and the mounting frame body (11) such that there is a relative rotational angle between the track frame (21) and the mounting frame body (11) determined by a telescopic length of the telescopic drive and a deformation amount of the shock absorber (13); the method comprises the steps of,

the crawler belt body (6), the crawler belt body (6) surrounds the crawler belt wheel system arranged on the crawler belt support assembly (2) and is matched with the crawler belt wheel system, and the relative rotation axis between the crawler belt support (21) and the mounting frame body (11) extends to pass through the surrounding area of the crawler belt body (6).

2. Track system according to claim 1, characterized in that the track frame (21) is provided with pins (22) extending through the mounting frame body (11) and the connecting frame (12) such that the rotational connection point between the connecting frame (12) and the mounting frame body (11) is coaxial with the rotational connection point between the track frame (21) and the mounting frame body (11).

3. Track system according to claim 2, characterized in that the mounting frame body (11) is provided with a limiting structure for limiting the extreme rotational position of the link frame (12) and/or that the mounting frame body (11) is provided with a first angle sensor (15) for measuring the rotational angle of the link frame (12) relative to the mounting frame body (11) and a second angle sensor (16) for measuring the rotational angle of the pin (22) relative to the mounting frame body (11).

4. Track system according to claim 1, characterized in that the telescopic drive is a ram (14) and that the ram (14) extends in the area surrounded by the track body (6) and/or that the highest point of the shock absorber (13) does not exceed the height of the corresponding part of the track body (6).

5. Track system according to claim 1, characterized in that the track frame (21) extends at least partly obliquely upwards in a direction away from the track mount (1) from the rotational connection point between the track frame (21) and the mount body (11).

6. Track system according to claim 1, characterized in that the track train comprises a driving wheel assembly (3), a fixed thrust wheel (23), a riding wheel (24) and a tensioning wheel assembly (4) cooperating with the track body (6), respectively, wherein the driving wheel assembly (3) comprises a power device (31), a speed reducer (32), a driving wheel (33) in driving engagement with the track body (6) via gear teeth and auxiliary supporting wheels (34) arranged on both sides of the driving wheel (33), respectively.

7. Track system according to claim 1, characterized in that the portion of the track body (6) running to cooperate with the underside of the track train comprises a first ground engaging track section (61) extending at an angle to each other and a second ground engaging track section (62) relatively far from the track mount (1) for enabling selective grounding of the first ground engaging track section (61) and the second ground engaging track section (62) by telescoping of the telescoping drive.

8. Track system according to claim 7, characterized in that the track train comprises a floating wheel assembly (5), which floating wheel assembly (5) comprises a pair of rocker arms (51) spaced apart from each other and pivotally connected to the track frame (21) respectively, and a floating thrust wheel (52) rotatably mounted on the rocker arms (51) and cooperating with the second ground engaging track segment (62), the ends of the rocker arms (51) remote from the floating thrust wheel (52) being interconnected by a damping spring (53).

9. The track system according to claim 8, wherein the floating thrust wheel (52) mounted on one of the swing arms (51) mates with an interface portion of the first ground engaging track segment (61) and the second ground engaging track segment (62).

10. Agricultural machine, characterized by comprising a track system according to any one of claims 1 to 9.