Rubber track chassis and adjustment method

Abstract

The present invention provides a rubber track chassis and an adjustment method, belonging to the technical field of crawler chassis. The rubber track chassis includes a beam frame, a longitudinal beam and a crawler, the crawler is installed on the longitudinal beam, there are two longitudinal beams and they are connected by the beam frame, the beam frame includes a support beam, a first telescopic beam and a second telescopic beam, the first telescopic beam and the second telescopic beam are respectively installed at both ends of the support beam, wherein two first telescopic beams and two second telescopic beams are provided, which are symmetrically arranged on both sides of the support beam and can be slidably adjusted along the width direction of the support beam, the second telescopic beam is hingedly provided on the longitudinal beam, and the first telescopic beam is connected to the longitudinal beam through an angle adjustment mechanism; through this adjustment method, the device can adjust the spacing of the crawler without additional equipment, and also reduces the phenomenon of crawler derailment caused by friction between the crawler adjustment and the ground in the prior art.

Description

Technical Field

[0001] The invention belongs to the technical field of crawler chassis, and in particular relates to a rubber crawler chassis and an adjustment method. Background Art

[0002] A Chinese patent with authorization announcement number CN113830194B discloses a track gauge-adjustable crawler chassis and control method. In this patent, when the two crawler frames are in the first working position, the track gauge is only limited by the length of the first telescopic cylinder. When changing to the third working position, the first telescopic cylinder is extended twice. Compared with the existing technology, the track gauge variation range is expanded, ensuring that the crawler chassis can pass through narrower roads and obtain greater operating stability.

[0003] An adjustable agricultural machinery transmission device is disclosed in a Chinese patent with authorization announcement number CN217074566U. The patent has a simple structure and compact layout. The track mounting side plates are connected to the oil cylinder and guide tube installed on the lower seat plate. The oil cylinder is telescopically displaced to drive the gap between the two track mechanisms to be adjusted through the guide tube, so as to adapt to different crop fields and have a wide range of applications.

[0004] However, when the track spacing is adjusted in the above technical solution, the tracks on both sides will move horizontally and parallel to the width of the equipment. Since the tracks are made of rubber and have a certain degree of flexibility, they are very likely to derail from the guide wheels and drive wheels under the action of friction during friction with the ground. Of course, the crawler chassis can be lifted first and then adjusted, but the crawler chassis usually carries the vehicle body, which will greatly increase the overall weight. Therefore, it is necessary to use special hydraulic equipment to lift or support the chassis, but this method has a low safety factor and is prone to causing casualties. In addition, in the agricultural operation site environment, it is almost difficult to find available hydraulic equipment to lift or support the chassis. Summary of the Invention

[0005] The purpose of the present invention is to provide a rubber track chassis and an adjustment method, aiming to solve the problem in the prior art that when adjusting the track spacing, the track is easily derailed from the guide wheel and the drive wheel.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a rubber track chassis and an adjustment method, comprising: a beam frame, a longitudinal beam and a crawler, the crawler being installed on the longitudinal beam, there being two longitudinal beams connected by the beam frame, the beam frame comprising a support beam, a first telescopic beam and a second telescopic beam, the first telescopic beam and the second telescopic beam being respectively installed at both ends of the support beam, wherein two first telescopic beams and two second telescopic beams are each provided, symmetrically arranged on both sides of the support beam, and can be slidably adjusted along the width direction of the support beam, the second telescopic beam is hingedly arranged on the longitudinal beam, the first telescopic beam is connected to the longitudinal beam by an angle adjustment mechanism, and the angle adjustment mechanism can be used to drive the longitudinal beam to rotate around the hinge axis between the second telescopic beam and the longitudinal beam.

[0007] A further technical solution of the present invention is that the angle adjustment mechanism includes a sliding beam installed on the first telescopic beam, a worm gear is provided on one side of the sliding beam, a worm is engaged with the worm gear, and a first driving device for driving the worm to rotate is provided on the longitudinal beam.

[0008] A further technical solution of the present invention is that the sliding beam is arc-shaped, and the center of the arc is located at the hinge axis position between the second telescopic beam and the longitudinal beam.

[0009] A further technical solution of the present invention is that locking mechanisms are provided inside both ends of the beam frame, and the locking mechanisms can respectively fix the telescopic positions of the first telescopic beam and the second telescopic beam.

[0010] A further technical solution of the present invention is that the locking mechanism includes a second drive device and multiple screws arranged inside the beam frame, the second drive device is fixedly mounted on the beam frame, the screw is connected to the output end of the second drive device, and the screw is threadedly connected to the first telescopic beam and the second telescopic beam respectively.

[0011] A further technical solution of the present invention is that mounting openings are provided at the middle positions of both ends of the support beam, a fixing plate is provided in the mounting opening, and the second driving device is installed on the fixing plate.

[0012] A further technical solution of the present invention is that a limiting cavity is provided on the longitudinal beam, and the sliding beam can slide inside it. A limiting plate is provided at one end of the sliding beam. When the sliding beam slides to the limit inside the limiting cavity, the limiting plate will resist against one end of the limiting cavity to limit the sliding of the sliding beam.

[0013] The method for adjusting a rubber crawler chassis is characterized by comprising the following steps:

[0014] S1. Initial position adjustment: Move the crawler chassis to a flat and open road;

[0015] S2. Preliminary angle adjustment: Activate the first drive device to drive the sliding beam to move relative to the longitudinal beam. Since the longitudinal beam is connected to the second telescopic beam through a rotating hinge, the longitudinal beam will swing outward, forming a certain angle between the two longitudinal beams.

[0016] S3. Preparation steps after angle adjustment is completed: After the angle adjustment is completed, the first drive device is turned off, and the crawler chassis continues to move slowly on the ground. At this time, the second drive device is started to drive the lead screw to rotate, thereby canceling the locked fixed state of the first telescopic beam and the second telescopic beam;

[0017] S4. Adjustment of longitudinal beam spacing: When the two longitudinal beams are at a certain angle and the spacing between the two longitudinal beams needs to be increased, the crawler chassis is guided to move toward the end of the two longitudinal beams that is farther apart, so that the two longitudinal beams move away from each other and the screw is rotated to cancel the locking of the first telescopic beam and the second telescopic beam; when the spacing needs to be reduced, the crawler chassis is guided to move toward the end of the two longitudinal beams that is closer, so as to increase or decrease the spacing between the two longitudinal beams;

[0018] S5. Restoring the parallel state after the spacing adjustment is completed: turn off the second driving device, repeat S2, and make the first driving device rotate in the opposite direction, thereby restoring the parallel state of the two longitudinal beams.

[0019] A further technical solution of the present invention comprises the following steps:

[0020] S1. Anti-derailment angle adjustment: During the angle adjustment process, the crawler chassis continues to move slowly, and the first drive device remains in operation. As the crawler chassis moves, the driving wheels and guide wheels continuously engage with the new positions of the chain rails, thereby preventing the crawler from derailing when the longitudinal beam is adjusted in angle.

[0021] S2. Anti-derailment adjustment when restoring parallelism: guide the crawler chassis to move slowly toward the end where the two longitudinal beams are closer, and at the same time start the first drive device to rotate it in the opposite direction, driving the sliding beam to move relative to the longitudinal beam. Through the principle in step S1, the two longitudinal beams gradually return to a parallel state, which also effectively avoids the derailment of the crawler.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. When adjusting the spacing of the crawlers, first adjust the two crawlers to a certain angle, then drive the crawler chassis to move forward or backward, so that the crawlers move toward the extended track, thereby gradually increasing the distance between the two crawlers. After the distance between the crawlers is determined, the two crawlers are restored to parallelism, and the distance between the two crawlers is fixed at the same time, so that the spacing of the crawlers can be adjusted. Through this adjustment method, the device can adjust the spacing of the crawlers without additional equipment, and also reduces the phenomenon of crawler derailment caused by the friction of the crawler adjustment on the ground in the prior art.

[0024] 2. When adjusting the angle of the crawler track, the crawler chassis moves slowly so that the drive wheel and guide wheel will continuously disengage from the chain track and engage in a new position, thereby avoiding the crawler track from derailing when the longitudinal beam is adjusted in angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 It is a structural schematic diagram of a specific embodiment of the present invention;

[0027] Figure 2 A top view of a specific embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the installation structure of the sliding beam in a specific embodiment of the present invention;

[0029] Figure 4 for Figure 3 A schematic diagram of the structure at center A;

[0030] Figure 5 This is a schematic structural diagram of a beam frame in a specific embodiment of the present invention;

[0031] Figure 6 It is a schematic diagram of the installation structure of the support beam and the first telescopic beam in a specific embodiment of the present invention.

[0032] In the figure: 1. Beam frame; 11. Support beam; 111. Mounting port; 112. Fixed plate; 12. First telescopic beam; 121. Sliding beam; 122. Worm gear; 123. Limiting plate; 13. Second telescopic beam; 2. Longitudinal beam; 21. Limiting cavity; 3. Track; 4. Angle adjustment mechanism; 41. Worm; 42. First drive device; 5. Locking mechanism; 51. Second drive device; 52. Screw. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] See also Figures 1-6 , the present invention provides the following technical solutions: a rubber crawler chassis, comprising a beam frame 1, a longitudinal beam 2 and a crawler 3;

[0035] In this structure, there are two tracks 3 and two longitudinal beams 2. Each track 3 is mounted on a corresponding longitudinal beam 2, thereby securing the tracks 3. A beam 1 is positioned between the two longitudinal beams 2, connecting them. Notably, the beam 1's ends are independently telescopic, allowing it to adjust the angle between the two longitudinal beams 2.

[0036] In actual use, when the angle between the two longitudinal beams 2 is adjusted, the two longitudinal beams 2 will no longer remain parallel; their extended paths will intersect. Subsequently, the tracks 3 slowly drive the frame 1 forward or backward. During this process, the spacing between the two tracks 3 changes accordingly: closer to the intersection of the two longitudinal beams 2, the spacing between the two tracks 3 decreases; farther away from the intersection, the spacing increases. This change in spacing indirectly adjusts the angle of the tracks 3. Finally, the two longitudinal beams 2 are adjusted back to a parallel state.

[0037] The driving wheel, the drag chain wheel, the guide wheel, the tensioning mechanism and the hydraulic travel reducer are installed on the longitudinal beam 2. The driving wheel is located at the rear part of the crawler chassis and is driven by an electric motor or a hydraulic motor to rotate the crawler 3, thereby pushing the chassis forward or backward. The drag chain wheel is located at the bottom of the crawler 3 and is used to support the crawler 3 to prevent the crawler 3 from sagging, and at the same time reduce the vibration and noise when the crawler 3 is running. The guide wheel is located at the front of the crawler 3 and is used to guide the crawler 3 to move in the correct direction and prevent the crawler 3 from derailing. The tensioning mechanism is used to adjust the tension of the crawler 3 to ensure that the crawler 3 maintains appropriate tightness during operation and prevents the crawler 3 from loosening or falling off. The hydraulic travel reducer provides power for the driving wheel, and through the effect of deceleration and torque increase, the driving wheel can drive the crawler 3 to rotate, thereby realizing the walking function of the chassis.

[0038] The crawler track 3 is mounted on the longitudinal beam 2 and works in conjunction with the drive wheel, drag chain pulley, tensioner, and hydraulic travel reducer. The crawler track 3 is composed of rubber, steel wire, and iron teeth. Specifically, the rubber layer covers the iron teeth and steel wire.

[0039] See also Figure 3 、 Figure 5 and Figure 6 The beam frame 1 includes an I-shaped support beam 11, two first telescopic beams 12 and two second telescopic beams 13. The support beam 11 is an I-shaped structure, that is, its two ends in the length direction extend horizontally. The first telescopic beam 12 and the second telescopic beam 13 are respectively installed at the two ends of the support beam 11, and the two first telescopic beams 12 and the second telescopic beams 13 are symmetrically arranged on both sides of the support beam 11, and can be slid and adjusted along the width direction of the support beam 11. Each first telescopic beam 12 and the second telescopic beam 13 are correspondingly connected to the longitudinal beam 2, wherein the second telescopic beam 13 is connected to the longitudinal beam 2 in a hinged manner, and the first telescopic beam 12 is connected to the longitudinal beam 2 through an angle adjustment mechanism 4. The angle adjustment mechanism 4 can drive the longitudinal beam 2 to rotate around the hinge axis between the second telescopic beam 13 and the longitudinal beam 2.

[0040] During use, the operator first adjusts the inclination angle of the longitudinal beam 2 using the angle adjustment mechanism 4. Once the longitudinal beam 2 is adjusted to the desired angle, it must be fixed in position to ensure angle stability. Subsequently, by translating the frame 1 forward or backward, the spacing between the crawlers 3 can be adjusted to suit different operating requirements. During this process, the first and second telescopic beams 12, 13 can achieve corresponding telescopic movement within the support beam 11.

[0041] See also Figure 3 and Figure 4 The angle adjustment mechanism 4 includes a sliding beam 121 mounted on the first telescopic beam 12. The sliding beam 121 extends from one side of the longitudinal beam 2 to the other side. To achieve this function, a sliding cavity matching the sliding beam 121 is provided inside the longitudinal beam 2 to ensure that the sliding beam 121 can slide smoothly and unimpeded along a predetermined path inside the longitudinal beam 2.

[0042] It is worth noting that the sliding beam 121 is designed to be arc-shaped, with the center of the arc located at the hinge axis between the second telescopic beam 13 and the longitudinal beam 2. When the longitudinal beam 2 swings due to operational requirements, mechanical interference between the longitudinal beam 2 and the sliding beam 121 is avoided, thereby ensuring the stability and reliability of the entire angle adjustment mechanism 4.

[0043] To drive the sliding beam 121 relative to the longitudinal beam 2, an arc-shaped array of worm gear teeth 122 is provided on one side of the sliding beam 121. These worm gear teeth 122 tightly mesh with the worm 41 located within the longitudinal beam 2, forming a highly efficient transmission system. The worm 41 is mounted within the longitudinal beam 2, with a connecting shaft integrally extending from its axis. This connecting shaft penetrates the longitudinal beam 2 and extends to its exterior.

[0044] A first drive device 42, connected to the connecting shaft, is mounted on the longitudinal beam 2. This first drive device 42 is a motor. When activated, it drives the connecting shaft and the worm 41 connected thereto to rotate. As the worm 41 rotates, the meshing worm gear teeth 122 move accordingly, driving the entire sliding beam 121 to move smoothly along a pre-set arc path relative to the longitudinal beam 2.

[0045] In order to effectively constrain the sliding stroke of the sliding beam 121, a limit cavity 21 is provided on the longitudinal beam 2. The limit cavity 21 is a hollow cavity space inside which the sliding beam 121 slides. A limit plate 123 is provided at one end of the sliding beam 121. The limit plate 123 is firmly connected to the overall structure of the sliding beam 121. When the sliding beam 121 slides under the action of an external force, the limit plate 123 will slide synchronously inside the limit cavity 21 as the sliding beam 121 moves. As the sliding beam 121 slides to a specific angle position, the limit plate 123 will come into contact with one end of the limit cavity 21 and abut against each other. At this time, the limit plate 123 is blocked by the end of the limit cavity 21 and cannot continue to slide forward, thereby effectively limiting the sliding distance of the sliding beam 121. Through this design, the risk of the sliding beam 121 detaching from the longitudinal beam 2 due to exceeding the normal stroke range during the sliding process is successfully avoided, ensuring the stability and safety of the entire structure.

[0046] See also Figure 6 A locking mechanism 5 is provided inside both ends of the beam frame 1. The locking mechanism 5 can fix the telescopic positions of the first telescopic beam 12 and the second telescopic beam 13 respectively, thereby fixing the distance between the two longitudinal beams 2, ensuring the overall operation stability and reliability of the equipment.

[0047] The locking mechanism 5 comprises a second drive unit 51 and a lead screw 52, ​​disposed within the beam frame 1. The second drive unit 51 is a bidirectional motor, fixedly mounted in the center of the beam frame 1. The lead screws 52 are attached to the two output shaft ends of the second drive unit 51 via a coupling or direct connection, enabling the second drive unit 51 to synchronously rotate the two lead screws 52 during operation. The two lead screws 52 in one set of the locking mechanism 5 form a threaded transmission connection with each of the two first telescopic beams 12, while the two lead screws 52 in the other set of the locking mechanism 5 form a threaded transmission connection with each of the two second telescopic beams 13.

[0048] During normal operation of the equipment, the second drive device 51 remains powered off and in a shutdown state. At this point, the lead screw 52 is stationary due to a loss of power. The self-locking properties of the lead screw 52 thread pair lock the axial displacement and sliding of the first telescopic beam 12 and the second telescopic beam 13, thereby ensuring a constant spacing between the two longitudinal beams 2 and improving the operational stability of the equipment. When the first telescopic beam 12 and the second telescopic beam 13 need to be telescoped, the longitudinal beam 2 is first adjusted to a certain angle. The beam frame 1 then moves forward and backward, allowing the longitudinal beam 2 to drive the first and second telescopic beams 12 and 13 to autonomously extend and retract within the support beam 11. During this process, the second drive device 51 is synchronously started to drive the screw 52 to rotate, which can cancel the self-locking function of the first telescopic beam 12 and the second telescopic beam 13. Through the rotation of the screw 52 and the autonomous extension and retraction of the first telescopic beam 12 and the second telescopic beam 13 (it should be noted that the rotation speed of the screw 52 needs to be adapted to the extension and retraction speed of the first telescopic beam 12 and the second telescopic beam 13), the function of adjusting the extension and retraction of the first telescopic beam 12 and the second telescopic beam 13 can be achieved. It should be noted that the screw 52 only assumes the self-locking release function and does not directly participate in the extension and retraction drive. The entire adjustment process requires that the screw 52 be kept in continuous engagement with the threaded hole to avoid the risk of disengagement.

[0049] See also Figure 2-Figure 3 , an installation opening 111 is opened in the middle position of both ends of the support beam 11, and the top of the installation opening 111 is open, which provides convenience for subsequent operations. The second drive device 51 is installed inside the installation opening 111. Specifically, a fixed plate 112 is fixedly connected in the installation opening 111, and the second drive device 51 is firmly fixed on this fixed plate 112. When performing the installation process of the second drive device 51, the operator can first install the screw 52 into the support beam 11 through the installation opening 111, and make it threadedly connected with the first telescopic beam 12 and the second telescopic beam 13. Then, the second drive device 51 is firmly fixed on the fixed plate 112. Finally, the screw 52 is fixedly connected to the output end of the second drive device 51. The design of the installation opening 111 greatly simplifies the installation and subsequent maintenance of the second drive device 51 and the screw 52.

[0050] The adjustment method of the rubber track chassis includes the following steps:

[0051] S1. Initial position adjustment: Move the crawler chassis to a flat, open road surface to ensure that the ground conditions will not interfere with the subsequent adjustment process.

[0052] S2. Initial Angle Adjustment: Start the crawler chassis, allowing it to slowly roll over the ground, and guide it toward one end near the first drive device 42. Then, power is supplied to activate the first drive device 42. The first drive device 42, through the coordination of the worm 41 and the worm gear 122, drives the sliding beam 121 relative to the longitudinal beam 2. Because the other end of the longitudinal beam 2 is connected to the second telescopic beam 13 via a pivoting hinge, the longitudinal beam 2 swings outward, forming a specific angle between the two longitudinal beams 2.

[0053] S3, anti-derailment measures during angle adjustment: During the angle adjustment process, the crawler chassis continues to travel slowly, and the first drive device 42 remains in operation. Since the crawler chassis is in motion, the driving wheels and guide wheels are constantly engaged with the new positions of the chain rails, thereby effectively avoiding the derailment of the crawler 3 when the longitudinal beam 2 is adjusted in angle.

[0054] S4. Preparation steps after angle adjustment: After angle adjustment is completed, the first drive device 42 is turned off, and the crawler chassis continues to move slowly on the ground. At this time, the second drive device 51 is activated to rotate the lead screw 52, ​​thereby releasing the locked state of the first telescopic beam 12 and the second telescopic beam 13.

[0055] S5. Adjusting the Spacing Between Longitudinal Beams 2: At this point, the two longitudinal beams 2 are already at a certain angle. To increase the distance between the two longitudinal beams 2, the crawler chassis is guided to move toward the end of the two longitudinal beams 2 that is farther apart. As the two longitudinal beams 2 move away from each other, and the rotation of the lead screw 52 cancels the locking of the first telescopic beam 12 and the second telescopic beam 13, the distance between the two longitudinal beams 2 can be increased. Conversely, to decrease the distance between the two longitudinal beams 2, the crawler chassis is guided to move toward the end of the two longitudinal beams 2 that is closer together. This principle allows the distance between the two longitudinal beams 2 to be reduced.

[0056] S6. Restoring parallelism after spacing adjustment: Deactivate the second drive unit 51, relocking the first and second telescopic beams 12 and 13. Then, slowly guide the crawler chassis toward the end where the two longitudinal beams 2 are closer together, while simultaneously activating the first drive unit 42 to rotate in the opposite direction. This drives the sliding beam 121 relative to the longitudinal beams 2. Through the principles described in step S3, the two longitudinal beams 2 gradually return to a parallel state, effectively preventing the crawler tracks 3 from derailing.

Claims

1. Rubber track chassis, including: A beam frame (1), a longitudinal beam (2) and a crawler track (3), wherein the crawler track (3) is mounted on the longitudinal beam (2), and there are two longitudinal beams (2) connected via the beam frame (1), characterized in that the beam frame (1) comprises a support beam (11), a first telescopic beam (12) and a second telescopic beam (13), wherein the first telescopic beam (12) and the second telescopic beam (13) are respectively mounted at both ends of the support beam (11), wherein two first telescopic beams (12) and two second telescopic beams (13) are provided, symmetrically arranged on both sides of the support beam (11), and can be slidably adjusted along the width direction of the support beam (11), and the second telescopic beam (13) is hingedly arranged on the longitudinal beam (2), and the first telescopic beam (12) is connected to the longitudinal beam (2) via an angle adjustment mechanism (4), and the angle adjustment mechanism (4) can be used to drive the longitudinal beam (2) to rotate around the hinge axis between the second telescopic beam (13) and the longitudinal beam (2); The angle adjustment mechanism (4) comprises a sliding beam (121) mounted on the first telescopic beam (12), a worm gear (122) being provided on one side of the sliding beam (121), a worm (41) being meshed with the worm gear (122), and a first driving device (42) for driving the worm (41) to rotate being provided on the longitudinal beam (2); The sliding beam (121) is arc-shaped, and the center of the arc is located at the hinge axis position between the second telescopic beam (13) and the longitudinal beam (2); Locking mechanisms (5) are provided inside both ends of the beam frame (1), and the locking mechanisms (5) can respectively fix the telescopic positions of the first telescopic beam (12) and the second telescopic beam (13); The locking mechanism (5) includes a second drive device (51) and a plurality of lead screws (52) arranged inside the beam frame (1). The second drive device (51) is fixedly mounted on the beam frame (1). The lead screw (52) is connected to the output end of the second drive device (51), and the lead screw (52) is threadedly connected to the first telescopic beam (12) and the second telescopic beam (13), respectively. The rotation speed of the lead screw (52) is adapted to the telescopic speed of the first telescopic beam (12) and the second telescopic beam (13), so that the lead screw (52) only assumes the self-locking release function and does not directly participate in the telescopic drive.

2. The rubber track chassis according to claim 1, characterized in that: Mounting openings (111) are provided at the middle positions of both ends of the support beam (11), a fixing plate (112) is provided in the mounting opening (111), and the second driving device (51) is mounted on the fixing plate (112).

3. The rubber track chassis according to claim 1, characterized in that: A limiting cavity (21) is provided on the longitudinal beam (2), and the sliding beam (121) can slide inside the limiting cavity. A limiting plate (123) is provided at one end of the sliding beam (121). When the sliding beam (121) slides to a limit inside the limiting cavity (21), the limiting plate (123) abuts against one end of the limiting cavity (21), thereby limiting the sliding of the sliding beam (121).

4. The adjustment method of the rubber track chassis is characterized by: Using the rubber track chassis as claimed in claim 1, the following steps are included: S1. Initial position adjustment: Move the crawler chassis to a flat and open road; S2, preliminary angle adjustment: start the first driving device (42) to drive the sliding beam (121) to move relative to the longitudinal beam (2). Since the longitudinal beam (2) and the second telescopic beam (13) are connected by a rotating hinge, the longitudinal beam (2) will swing outward, so that a certain angle is formed between the two longitudinal beams (2); S3, preparation steps after angle adjustment is completed: After angle adjustment is completed, the first driving device (42) is turned off, and the crawler chassis continues to move slowly on the ground. At this time, the second driving device (51) is started to drive the lead screw (52) to rotate, thereby canceling the locked fixed state of the first telescopic beam (12) and the second telescopic beam (13); S4, longitudinal beam (2) spacing adjustment: the two longitudinal beams (2) are at a certain angle. When the spacing between the two longitudinal beams (2) needs to be increased, the crawler chassis is guided to move toward the end of the two longitudinal beams (2) that is farther away from each other, so that the two longitudinal beams (2) are separated from each other and the screw (52) is rotated to cancel the locking fixation of the first telescopic beam (12) and the second telescopic beam (13); when the spacing needs to be reduced, the crawler chassis is guided to move toward the end of the two longitudinal beams (2) that is closer to each other, thereby increasing or decreasing the spacing between the two longitudinal beams (2); S5. Restoring the parallel state after the spacing adjustment is completed: turning off the second driving device (51), repeating S2, causing the first driving device (42) to rotate in the opposite direction, thereby restoring the parallel state of the two longitudinal beams (2).

5. The method for adjusting a rubber track chassis according to claim 4, characterized in that: include: Anti-derailment angle adjustment: During the angle adjustment process, the crawler chassis continues to travel slowly, while the first drive device (42) remains in operation. Since the driving wheel and the guide wheel of the crawler chassis are constantly engaged with the new position of the chain rail during travel, the crawler (3) is prevented from derailing when the longitudinal beam (2) is adjusted in angle. Anti-derailment adjustment when restoring parallelism: guide the crawler chassis to slowly move toward the end where the two longitudinal beams (2) are closer, and at the same time start the first driving device (42) to rotate in the opposite direction, driving the sliding beam (121) to move relative to the longitudinal beam (2), so that the two longitudinal beams (2) gradually return to a parallel state, which also effectively avoids the crawler (3) from derailing.

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