A track support assembly for a three-rail transport machine for agricultural machinery

Abstract

This invention relates to the technical field of temporary tracks, specifically to a track support assembly for a three-track transport machine used in agricultural machinery. The support assembly includes a support rod and a chassis. The support rod is connected to the chassis, and a sleeve is fixedly fitted onto the bottom of the support rod. The sleeve is fitted onto the outer wall of the support rod, and several auxiliary rods are slidably arranged on the sleeve. A locking assembly for locking the auxiliary rods is also provided on the sleeve. This invention addresses the technical problem that in wet and loose soil conditions in farmland, where the ground is uneven, forcibly expanding the support area can lead to the base not fully conforming to the ground, resulting in only a few points of actual stress, while other parts are suspended. This causes the stress points to be pressed deeper and deeper, ultimately making the entire support structure more prone to tilting and deformation.

Description

Technical Field

[0001] This invention relates to the technical field of temporary tracks, and more specifically to a track support assembly for a three-track transport machine for agricultural machinery. Background Technology

[0002] In modern agricultural production, the three-rail transport system, as the core equipment of the automated transport system, undertakes the task of efficiently transferring agricultural products and agricultural materials. Due to the significant seasonality of agricultural production, the types, weights, and transport routes of agricultural products required to be transported vary considerably at different growth stages. This necessitates that the rail system have the ability to quickly adjust and adapt to different transport needs, which in turn requires temporary adjustments to the rail routes.

[0003] However, existing track support structures mostly use a single support point or a simple support form. In soft, wet and uneven farmland environments, long-term exposure to uneven weight loads on both sides can easily lead to local subsidence of the support structure, causing the track to deviate or deform. This not only affects transportation stability and operating efficiency, but also increases the frequency of track maintenance and replacement.

[0004] Existing technologies increase the support area of ​​the supporting structure to allow it to contact the soil more and reduce the probability of local subsidence. However, due to the unevenness of farmland ground, forcibly increasing the support area can actually prevent the base from fully adhering to the ground, resulting in only a few points of actual stress while the rest is suspended. Especially in moist and loose soil environments, the stress points will be pressed deeper and deeper, ultimately making the entire supporting structure more prone to tilting and deformation. Summary of the Invention

[0005] The purpose of this invention is to provide a track support component for a three-track transport machine for agricultural machinery, which solves the technical problem that in the wet and loose soil environment of farmland, the ground is uneven and pitted. Forcibly expanding the support area will cause the base to not be able to fully fit the ground, so that only a few points are actually stressed, while the other parts are suspended. The stress points will be pressed deeper and deeper, and the entire support structure will be more prone to tilting and deformation.

[0006] This invention is achieved through the following technical solution:

[0007] Furthermore, the support assembly includes a support rod and a chassis, with the support rod connected to the chassis. The characteristic feature is that a sleeve is fixedly fitted onto the bottom of the support rod, the sleeve being fitted onto the outer wall of the support rod. A plurality of auxiliary rods are slidably mounted on the sleeve, and a locking component for locking the auxiliary rods is also provided on the sleeve. The auxiliary rods are fixed in this position by cooperating with the locking component. The auxiliary rods in this application are slidably mounted; the purpose of this sliding mounting is to allow for free selection of relatively flat ground surfaces, avoiding uneven areas.

[0008] Furthermore, a groove is provided on the sleeve, and a sliding groove is provided on the opposite side wall of the groove. Several sliders are provided in the sliding groove, and the two ends of the sliders are respectively placed in the two sliding grooves. The sliders and the auxiliary rod are connected by a ball joint.

[0009] Furthermore, the locking assembly includes a connecting rod on the sleeve, an arc-shaped rod connected to the connecting rod, an arc-shaped hole on the auxiliary rod, the trajectory of the arc-shaped hole matching the arc-shaped rod, and elastic plates on both sides of the arc-shaped rod.

[0010] Furthermore, an extension plate is provided at the end of the auxiliary rod to increase the contact area.

[0011] Furthermore, the extension plate is provided with several through holes. These through holes not only reduce the structural weight but also allow the plate to interlock with the soil, enhancing its resistance to slippage.

[0012] Furthermore, the extension plate is hinged to the end of the auxiliary pole. Users can choose whether or not to place the extension plate on the ground based on road conditions, increasing adjustment flexibility.

[0013] Furthermore, a locking block is provided on the sleeve, which cooperates with the auxiliary rod and is located above the slider. This facilitates the transport of the support assembly when the track is disassembled.

[0014] Furthermore, the connecting rod includes an outer sleeve and an inner sleeve. The inner sleeve is connected to the arc-shaped rod, and the outer wall of the inner sleeve is connected to the inner wall of the outer sleeve via a compression spring. Multiple pin holes are provided on the outer sleeve, and a pin is provided on the inner sleeve. The pin is connected to the inner sleeve via a telescopic spring. The multiple sets of pin holes on the outer sleeve and the pin on the inner sleeve work together to achieve precise locking at multiple positions, allowing the auxiliary rod to quickly adapt to different slopes and terrains, preventing each auxiliary rod from being at the same angle, which would make adjustment difficult.

[0015] Furthermore, a through groove is provided on the slider, and a first sliding groove is provided on the opposite side wall of the through groove. The two ends of the first sliding block are respectively set in the two first sliding grooves. The auxiliary rod is connected to the first sliding block through a ball joint, and a triggering component is provided on the slider. The triggering component is used to movably connect the slider and the sleeve.

[0016] Furthermore, adjacent support rods are connected by fixing rods, which helps maintain a certain level of stability.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0018] 1. This application provides an auxiliary rod, which is slidably mounted around a sleeve. Based on the assessment of the road conditions, the auxiliary rod is slid to a suitable position and then contacts a relatively flat surface. The auxiliary rod is fixed in this position by cooperating with a locking component. The auxiliary rod of this application is slidably mounted, and the purpose of the sliding mounting is to freely select a relatively flat surface and avoid uneven parts.

[0019] 2. This application provides an extension plate at the end of the auxiliary rod, and the extension plate is provided with several through holes. The through holes on the extension plate can not only reduce the structural weight, but also interlock with the soil through the holes, thereby enhancing the anti-slip ability.

[0020] 3. By hinged the extension plate to the end of the auxiliary pole, this application allows users to choose whether to place the extension plate on the ground based on road conditions, thus improving the flexibility of adjustment. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the sleeve of the present invention assembled on the support rod;

[0024] Figure 3 This is a schematic diagram showing the specific structure of the card block of the present invention mounted on the sleeve;

[0025] Figure 4 In this invention Figure 3 Side sectional view;

[0026] Figure 5 This is a schematic diagram of the structure of the auxiliary rod with an extension plate according to the present invention;

[0027] Figure 6 This is a schematic diagram of the specific structure of the expansion board of the present invention;

[0028] Figure 7 This is a schematic diagram of the internal structure of the slider of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure where the first slider and the trigger post of the present invention are not in contact;

[0030] Figure 9 In this invention Figure 8 Enlarged view of part A;

[0031] Figure 10This is a schematic diagram of the motion trend structure of the first sliding block and the trigger post in this invention.

[0032] The attached diagram shows the markings and corresponding component names:

[0033] 1-Rail; 2-Support rod; 3-Chassis; 4-Sleeve; 5-Auxiliary rod; 6-Groove; 7-Slide groove; 8-Slider; 9-Arc-shaped rod; 10-Arc-shaped hole; 11-Elastic plate; 12-Extension plate; 13-Through hole; 14-Card block; 15-Outer sleeve; 16-Inner sleeve; 17-Pin; 18-Fixing rod; 19-Through groove; 20-First sliding block; 21-Cavity; 22-First connecting hole; 23-Compression spring; 24-Trigger pin; 25-Placement hole; 26-Connecting shell; 27-Wedge block; 28-Conical pin; 29-Locking pin. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0035] Example 1:

[0036] like Figure 1 and Figure 5 As shown, existing technologies increase the support area of ​​the support structure to allow for greater contact with the soil and reduce the probability of localized subsidence. However, due to the unevenness of farmland ground, forcibly increasing the support area can prevent the base from fully adhering to the ground, resulting in only a few points of actual stress while the rest remains suspended. Especially in moist and loose soil, the stress points will be pressed deeper and deeper, ultimately making the entire support structure more prone to tilting and deformation.

[0037] The support assembly includes a support rod 2 and a chassis 3. A sleeve 4 is fixedly sleeved at the bottom of the support rod 2. The sleeve 4 is sleeved on the outer wall of the support rod 2. Several auxiliary rods 5 are slidably arranged on the sleeve 4. A locking assembly for locking the auxiliary rods 5 is also provided on the sleeve 4.

[0038] It should be noted that an extension plate 12 is provided at the end of the auxiliary rod 5, and the extension plate 12 is provided with several through holes 13.

[0039] It should be noted that the extension plate 12 is hinged to the end of the auxiliary rod 5. The hinge method can be a torsion spring.

[0040] It should be noted that a locking block 14 is also provided on the sleeve 4. The locking block 14 cooperates with the auxiliary rod 5 and is located above the slider 8.

[0041] It should be noted that the lower surface of the card block 14 is provided with a rubber buffer layer to absorb shock when it comes into contact with the auxiliary rod 5.

[0042] It should be noted that adjacent support rods 2 are connected by a fixing rod 18.

[0043] The support components of this application consist of support rods 2 and a chassis 3. Support rods 2 and chassis 3 are connected, with chassis 3 in contact with the ground. Each support rod 2 is positioned below each track 1. In farmland, uneven terrain is common. Therefore, when placing chassis 3, a relatively flat and favorable surface is typically chosen. Consequently, the chassis 3 in this application is designed to have a smaller footprint. Although chassis 3 is in a flat position, this does not mean the surrounding area is flat. Therefore, after chassis 3 is placed, the auxiliary rod 5 is slid to a suitable position based on the terrain conditions. The auxiliary rod 5 then contacts a relatively flat surface and is fixed in place by a locking mechanism. The auxiliary rod 5 in this application is a sliding mechanism, designed to allow for flexible selection of a relatively flat surface while avoiding uneven areas.

[0044] The placement of the auxiliary pole 5 is determined based on the ground conditions. When the ground conditions are good, the extension plate 12 can expand the area. When the ground conditions are difficult, only the auxiliary pole 5 can be placed, in which case the extension plate 12 is flipped to the side wall of the auxiliary pole 5. When the extension plate 12 is needed, it is flipped to the bottom of the auxiliary pole 5, and the auxiliary pole 5 contacts the ground through the extension plate 12. The extension plate 12 not only expands the area, but also prevents it from deflecting back to its original position after contacting the ground. Furthermore, the through holes 13 on the extension plate 12 not only reduce the structural weight, but also allow it to interlock with the soil through the holes, enhancing its anti-slip ability. Figure 6 As shown. Here, the hinge of the extension plate 12 is optimized. The extension plate 12 can be provided with a moving groove and a moving block on the auxiliary rod 5. The extension plate 12 is hinged to the moving block. When only the auxiliary rod 5 needs to contact the ground, the moving block is moved upward, which can avoid squeezing the extension plate 12.

[0045] Since track 1 is a temporary structure, it will need to be dismantled and rebuilt. This means that the support components also need to be transported to a specific location for installation. However, if the auxiliary rods 5 are not fixed, they will be damaged during transportation. This application solves this problem by setting a locking block 14 that cooperates with the auxiliary rods 5. When the support components need to be dismantled, the auxiliary rods 5 flip up to cooperate with the locking block 14. Each auxiliary rod 5 and each locking block 14 are in one-to-one correspondence. The cooperation between the locking block 14 and the auxiliary rod 5 is a rigid contact, so all the auxiliary rods 5 can be fixed within a certain range, which is convenient for transportation.

[0046] Example 2:

[0047] Based on Example 1, the following implementation methods are also included.

[0048] like Figure 2 and Figure 3 As shown, the preferred sliding arrangement is as follows: a groove 6 is provided on the sleeve 4, and a sliding groove 7 is provided on the opposite side wall of the groove 6. A plurality of sliders 8 are provided in the sliding groove 7, and the two ends of the sliders 8 are respectively placed in two sliding grooves 7. The sliders 8 and the auxiliary rod 5 are connected by a ball joint.

[0049] The sliding groove 7 and the slider 8 provided in this application cooperate to allow the auxiliary rod 5 to slide around the sleeve 4, and the slider 8 and the auxiliary rod 5 are ball joints, which means that the auxiliary rod 5 can rotate 360° to adjust the direction.

[0050] Example 3:

[0051] Based on Example 1, the following implementation methods are also included.

[0052] like Figure 4 As shown, the locking assembly includes a connecting rod on the sleeve 4, an arc-shaped rod 9 connected to the connecting rod, an arc-shaped hole 10 on the auxiliary rod 5, the trajectory of the arc-shaped hole 10 matching the arc-shaped rod 9, and elastic plates 11 on both sides of the arc-shaped rod 9.

[0053] When the auxiliary rod 5 is flipped, the elastic plate 11 is squeezed against the arc-shaped hole 10. The elastic plate 11 moves towards the arc-shaped rod 9 and enters the arc-shaped hole 10 until the end of the arc-shaped rod 9 passes through the arc-shaped hole 10. Then the pressure on the elastic plate 11 disappears. At this time, the elastic plate 11 contacts the outer wall of the auxiliary rod 5, and a part of the auxiliary rod 5 is located within the angle between the connecting rod and the arc-shaped rod 9, so that it locks the auxiliary rod 5.

[0054] It should be noted that the connecting rod can be further optimized. The connecting rod may include an outer sleeve 15 and an inner sleeve 16. The inner sleeve 16 is connected to the arc-shaped rod 9. The outer wall of the inner sleeve 16 is connected to the inner wall of the outer sleeve 15 via a compression spring. The outer sleeve 15 has multiple pin holes, and the inner sleeve 16 has a pin 17. The pin 17 is connected to the inner sleeve 16 via a telescopic spring. The movement of the arc-shaped rod 9 can be adjusted by the telescopic movement of the inner sleeve 16 and the outer sleeve 15, thereby adjusting the angle of the auxiliary rod 5. The multiple sets of pin holes on the outer sleeve 15, in conjunction with the pin 17 on the inner sleeve 16, achieve multi-position precise locking, allowing the auxiliary rod 5 to quickly adapt to different slopes and terrains, avoiding the situation where each auxiliary rod 5 is at the same angle, which would make it difficult to adjust. This means that this application can select a suitable placement location among the gravel using the sliding auxiliary rod 5 and the telescopic connecting rod under different gravel road conditions, without requiring manual excavation and preparation.

[0055] Example 4:

[0056] like Figures 7 to 10 As shown, a through groove 19 is provided on the slider 8, and a first sliding groove is provided on the opposite side wall of the through groove 19. The two ends of the first sliding block 20 are respectively provided in the two first sliding grooves. The auxiliary rod 5 is connected to the first sliding block 20 through a ball joint. A triggering component is provided on the slider 8. The triggering component is used to movably connect the slider 8 and the sleeve 4.

[0057] The triggering component includes a cavity 21 inside the slider 8, a first connecting hole 22 connected to the through groove 19, a compression spring 23 on the inner wall of the cavity 21 connected to the trigger post 24, and a second connecting hole on each side wall inside the cavity 21. A connecting shell 26 with open ends is provided in the second connecting hole, and a locking post 29 is slidably disposed in the connecting shell 26. A wedge block 27 is provided on the trigger block, and a conical post 28 that cooperates with the wedge blocks 27 on the trigger post 24 is provided. Several placement holes 25 that cooperate with the locking post 29 are provided in the sliding groove 7. The locking post 29 is slidably disposed within the connecting shell 26. This sliding disposal can be a second sliding groove provided on the connecting shell 26. The locking post 29 is slidably disposed by the cooperation of the second sliding block and the second sliding groove. The second sliding block is in cooperation with the inner wall of the second sliding groove by a telescopic spring. Therefore, after the locking post 29 is no longer squeezed by the wedge block 27, it returns to its original position by the telescopic spring.

[0058] The working principle of Example 4 is as follows:

[0059] The auxiliary rod 5 is connected to the first sliding block 20 via a ball joint. Since the first sliding block 20 is located within the first sliding groove, the first slider 8 can slide up and down within the groove. After the auxiliary rod 5 finds a suitable position, it contacts the ground. Under normal support conditions, the auxiliary rod 5 is fixed to the ground by a conventional locking assembly. At this time, the first sliding block 20 and the trigger post 24 remain in a non-contact state. When the load on one side of the transport machine is too large, the pressure of the track 1 is transmitted to the auxiliary rod 5, such as... Figure 10 As shown, pushing the first sliding block 20 upward causes it to contact the trigger post 24 and apply pressure. The trigger post 24, under pressure, moves towards the compression spring 23, and its tapered end 28 simultaneously pushes the two wedge blocks 27 to expand radially. The movement of the wedge blocks 27 causes the locking post 29 and the placement hole 25 to engage. Specifically, the locking post 29 and the placement hole 25 engage through a movable contact. The first sliding block 20 pushes the trigger post 24 upward, causing the wedge blocks 27 to move. Correspondingly, the locking pin 29 is moved by the wedge block 27, and the locking pin 29 can enter the placement hole 25. The placement hole 25 is set in the slide groove 7 inside the sleeve 4. The locking pin 29 is located inside the slider 8. Therefore, when the locking pin 29 contacts the placement hole 25, the sleeve 4 and the slider 8 are movably connected. Since the compressive force on its auxiliary rod 5 has not changed, under the action of continuous pressure, the locking pin 29 and the placement hole 25 maintain a stable engagement state, thereby maintaining the connection between the sleeve 4 and the slider 8.

[0060] When track 1 needs to be disassembled, it can be unlocked simply by manually moving the first sliding block 20 downwards. After the first sliding block 20 moves downwards, the trigger post 24 is no longer compressed, and the trigger post 24 returns to its original position via the compression spring 23, causing the conical post 28 to retract, resulting in the radial contraction of the two wedge blocks 27, and thus disengaging the locking post 29 from the placement hole 25. The purpose of this design is to ensure that when the conveyor is overloaded on one side, the pressure of track 1 is transmitted to the corresponding support rod 2. After the auxiliary rod 5 is compressed, it pushes the trigger post 24, causing the conical post 28 to move upwards, and the two wedge blocks 27 to expand radially. This allows the locking post 29 on the wedge block 27 to engage with the placement hole 25. Since the auxiliary rod 5 does not return to its original position, the wedge block 27 maintains its current state. Therefore, the position of the auxiliary rod 5 at this time ensures the continuous engagement of the wedge block 27, the locking post 29, and the placement hole 25, preventing the slider 8 from undergoing violent, rigid movement within the sleeve 4.

[0061] The specific working principle of this application is as follows:

[0062] In this application, when the track 1 needs to be rebuilt, it needs to be disassembled beforehand. When disassembling the track 1 and the support components, the auxiliary rods 5 are flipped upwards to engage rigidly with the locking block 14. After all the auxiliary rods 5 are fixed within a certain range, the entire support component can be transported. After the support component is transported to the destination, the assembly begins. The chassis 3 on each support component is placed within the planned route range. If the road conditions in the area where the chassis 3 needs to be placed are poor, manual processing can be performed to make the placement area of ​​the chassis 3 a relatively flat section. Then, the auxiliary rods 5 are detached from the locking block 14. The area near the chassis 3 is assessed. Since there are some small gravel in the farmland area, the position of the auxiliary rods 5 is adjusted by sliding them to make them contact the flat ground. Several auxiliary rods 5 are provided, but not all of them need to be in contact with the ground. When there is too much gravel on the ground, at least three auxiliary rods 5 need to be placed on the ground. The remaining auxiliary rods 5 can be engaged with the locking block 14 again to avoid affecting the operation. Once the auxiliary rod 5 has been positioned, it flips downwards to align with the corresponding arc-shaped rod 9, causing the placement hole 25 on the auxiliary rod 5 to engage with the arc-shaped rod 9, thus achieving a locked state. The connecting rod connected to the arc-shaped rod 9 has a telescopic function, so the angle of the auxiliary rod 5 can be adjusted by telescopically extending or retracting the connecting rod.

[0063] While placing the auxiliary rod 5, it is also possible to observe whether the area occupied by the flat ground is large. If it is large, the extension plate 12 can be flipped to the bottom of the auxiliary rod 5, and the auxiliary rod 5 will make contact with the ground through the extension plate 12. If there are many uneven areas, it is not convenient to use the extension plate 12, so the extension plate 12 needs to be in the initial position, that is, on the side wall of the auxiliary rod 5. In order to avoid the probability of damage to the hinge of the extension plate 12, the hinge of the extension plate 12 is improved. The above-mentioned optimized improvement method is to set a moving groove and a moving block on the side wall of the auxiliary rod 5. The moving block can drive the extension plate 12 to move on the moving groove, avoiding the hard collision between the extension plate 12 and the ground when not in use, and reducing the wear of the hinge.

[0064] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A track support assembly for a three-rail transport machine for agricultural machinery, the support assembly comprising a support rod (2) and a chassis (3), the support rod (2) being connected to the chassis (3), characterized in that, A sleeve (4) is fixedly fitted at the bottom of the support rod (2). The sleeve (4) is fitted on the outer wall of the support rod (2). Several auxiliary rods (5) are slidably arranged on the sleeve (4). A locking component for locking the auxiliary rods (5) is also provided on the sleeve (4). An extension plate (12) is provided at the end of the auxiliary rod (5). A locking block (14) is also provided on the sleeve (4). The locking block (14) cooperates with the auxiliary rod (5). The locking block (14) is located above the slider (8). A through groove (19) is opened on the slider (8). A first sliding groove is provided on the opposite side wall of the through groove (19). The two ends of the first sliding block (20) are respectively set in the two first sliding grooves. The auxiliary rod (5) is connected to the first sliding block (20) through a ball joint. A triggering component is provided on the slider (8) to trigger the first sliding block (20). The component is used to connect the slider (8) and the sleeve (4) in an active manner; the trigger component includes a cavity (21) provided in the slider (8), a first connecting hole (22) provided in the cavity (21), the first connecting hole (22) communicating with the through groove (19), a compression spring (23) provided on the inner wall of the cavity (21), the compression spring (23) being connected to the trigger post (24), and a second connecting hole provided on both sides of the cavity (21), a connecting shell (26) with open ends provided on the second connecting hole, a locking post (29) being slidably provided in the connecting shell (26), a wedge block (27) provided on the trigger block, a conical post (28) provided on the trigger post (24) cooperating with the wedge blocks (27) on both sides, and a number of placement holes (25) cooperating with the locking post (29) provided in the slide groove (7).

2. The track support assembly for a three-rail transport machine for agricultural machinery according to claim 1, characterized in that, A groove (6) is provided on the sleeve (4), and a sliding groove (7) is provided on the opposite side wall of the groove (6). Several sliders (8) are provided in the sliding groove (7). The two ends of the sliders (8) are respectively placed in the two sliding grooves (7), and the sliders (8) and the auxiliary rod (5) are connected by a ball joint.

3. The track support assembly for a three-rail transport machine for agricultural machinery according to claim 1, characterized in that, The locking assembly includes a connecting rod on the sleeve (4), an arc rod (9) connected to the connecting rod, an arc hole (10) on the auxiliary rod (5), the trajectory of the arc hole (10) matching the arc rod (9), and elastic plates (11) on both sides of the arc rod (9).

4. The track support assembly for a three-rail transport machine for agricultural machinery according to claim 1, characterized in that, The expansion plate (12) has several through holes (13).

5. The track support assembly for a three-rail transport machine for agricultural machinery according to claim 1, characterized in that, The extension plate (12) is hinged to the end of the auxiliary rod (5).

6. The track support assembly for a three-rail transport machine for agricultural machinery according to claim 3, characterized in that, The connecting rod includes an outer sleeve (15) and an inner sleeve (16). The inner sleeve (16) is connected to the arc rod (9). The outer wall of the inner sleeve (16) is connected to the inner wall of the outer sleeve (15) by a compression spring. Multiple pin holes are provided on the outer sleeve (15). A pin (17) is provided on the inner sleeve (16). The pin (17) is connected to the inner sleeve (16) by a telescopic spring.

7. The track support assembly for a three-rail transport machine for agricultural machinery according to claim 1, characterized in that, Adjacent support rods (2) are connected by a fixing rod (18).

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