A walking device for integration of picking, stacking and loading of straw bales

Abstract

The application discloses a picking, stacking and loading integrated walking equipment for straw bales, and relates to the technical field of bale loading, which comprises a shape-following expansion mechanism arranged on a vehicle frame; the shape-following expansion mechanism comprises a top support displacement assembly and a follow-up expansion support assembly; the top support displacement assembly comprises a temporary storage platform arranged above one end of the vehicle frame, and a blocking rod is arranged on the two sides of the temporary storage platform; one end of the bottom of the blocking rod is hingedly connected with a pull rod, and the other end of the pull rod is fixedly connected with a spring. Through linkage and cooperation of the top support displacement assembly and the follow-up expansion support assembly, the function of self-adaptive adjustment of the size of the vehicle compartment according to the length of the straw bale is realized. In the whole process, any manual measurement or manual adjustment is not needed, and the equipment is triggered by the natural force of the rolling of the straw bale, and the equipment has higher adaptability.

Description

Technical Field

[0001] This invention relates to the field of straw bale loading technology, specifically to an integrated mobile device for picking up, stacking, and loading straw bales. Background Technology

[0002] Crop straw, as a byproduct of agricultural production, has extensive comprehensive utilization value. After processing, straw can be used as livestock feed, fuel for biomass power generation, and industrial raw materials for papermaking and pressed fiber wood. Due to the loose, fluffy, and bulky nature of straw, it is usually processed into neat and dense square or round bales by balers for easy collection and transportation. The formed bales are scattered throughout the fields and still require subsequent field collection, stacking, and loading.

[0003] For picking up round bales, the integrated walking equipment for picking up, stacking, and loading on the market usually consists of a robotic arm and a stacking carriage. The robotic arm can lift the bales from the ground and accurately place them at the designated position on the material drop platform. Then, taking advantage of the round shape of the bales, they will roll naturally into the stacking carriage. The whole process is highly continuous and the picking, stacking, and loading efficiency is fast.

[0004] However, different balers produce bales of varying lengths due to differences in their forming specifications. Existing integrated pickup, stacking, and loading equipment on the market typically has a fixed-size cargo box, which cannot be adjusted according to the actual length of the bales. Furthermore, the equipment experiences significant vibrations during field operations, causing shorter bales to sway violently within the fixed-size cargo box, constantly impacting the box walls and causing the formed bales to scatter or become misaligned. This severely affects the neatness of the stacking and subsequent transport efficiency. Conversely, a cargo box that is too small obviously cannot meet the needs. While some equipment offers adjustable cargo box sizes, multiple tedious manual adjustments are required each time different batches of bales are changed, which is time-consuming, labor-intensive, and extremely inconvenient.

[0005] To address the aforementioned issues, there is an urgent need for a mobile device that can adaptively adjust the size of the truck bed based on the length of the round hay bales, integrating picking, stacking, and loading. Summary of the Invention

[0006] The present invention addresses the problem that existing technical solutions are too simplistic and provides a solution that is significantly different from existing technologies. Specifically, the purpose of the present invention is to provide an integrated mobile device for picking up, stacking, and loading straw bales, in order to solve the problem mentioned in the background technology that the dimensions of the vehicle compartment are mostly fixed and cannot be adjusted according to the actual length of the straw bales.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an integrated mobile device for picking up, stacking, and loading straw bales, comprising a frame, a tractor unit positioned in front of the frame, and a multi-section picking arm positioned between the frame and the tractor unit, and further comprising: A conformal expansion mechanism mounted on the vehicle frame; The conformal expansion mechanism includes a top support clearance component and a follow-up expansion support component; The top support clearance assembly includes a temporary storage platform disposed above one end of the frame, with stop bars on both sides of the temporary storage platform, a pull rod hinged to one bottom end of the stop bar, and a spring fixed to the other end of the pull rod; The follow-up expansion assembly includes a fixed expansion rod fixed to one end of the tie rod, and two sets of side baffles are provided at the other end of the frame. An extension rod is fixed between the bottom of the two sets of side baffles, and a long rail is fixed to the bottom surface of the side baffles. The baffle bar rotates and expands under the squeezing and pushing action of the circular hay bale as it rolls down. The expansion distance is consistent with the length of the circular hay bale, and the two sets of side baffles expand synchronously in conjunction with each other, so that the distance between the two sets of side baffles matches the length of the circular hay bale, thereby limiting the swaying amplitude of the hay bale.

[0008] Preferably, the top support clearance assembly further includes connectors symmetrically fixed on both sides of the temporary storage platform; The top surface of the connector is fixed with an arc-shaped disk, and a pawl is rotatably provided on the top surface of the arc-shaped disk. A stop block is rotatably provided on the top surface of the arc-shaped disk near the pawl. The surface of the arc-shaped disk is provided with two sets of spring plates, one end of which is pressed against one end of the pawl, and the other end of which is pressed against one end of the stop block. One end of the stop block is movably engaged at the other end of the pawl.

[0009] Preferably, the extension rods are provided in several groups that are equidistantly distributed; The extension rod consists of a long rod and inserts symmetrically and movable at both ends of the long rod; One end of the insertion rod is fixedly connected to the side wall of the two sets of side baffles respectively; One set of the long rods is hinged to the vehicle frame; The outer surface of the long rod is fitted with a ring sleeve.

[0010] Preferably, the temporary storage platform consists of rigid frames on both sides and rollers rotatably disposed between the two sets of rigid frames; The rollers are arranged in several groups that are equidistantly distributed; Both the temporary storage platform and the extension rod are set at an angle, and the joint between the two is flush.

[0011] Preferably, the ring sleeve rod is composed of a long connecting rod and circular rings evenly distributed on the surface of the long connecting rod; The ring-shaped rods are provided in four sets, with two sets of ring-shaped rods symmetrically distributed at both ends of the extension rod, and the other two sets of ring-shaped rods symmetrically distributed at both ends of the temporary storage platform; The long section of the extension rod is rotatably inserted into the circular rings of the two sets of ring rods. The roller section of the temporary storage platform is rotatably inserted into the circular sleeves of the other two sets of ring sleeve rods.

[0012] Preferably, the stop bar is configured as an inverted U-shaped structure; The two ends of the stop bar are located above and below the temporary storage platform, respectively; The two ends of the stop bar are set to be inclined; The middle section of the stop bar is rotatably inserted into the connector; A ratchet is fixedly fitted on the outer surface of the middle section of the stop bar, and the ratchet is compatible with the pawl; A torsion spring is movably sleeved on the outer surface of the middle section of the stop bar; One end of the torsion spring is fixedly connected to the connector, and the other end of the torsion spring is pressed against the surface of the stop bar.

[0013] Preferably, the distance between the top ends of the two sets of stop bars is less than the distance between the two sets of side baffles; The axis of symmetry of the two sets of stop bars coincides with the axis of symmetry of the two sets of side baffles; The top end of the stop bar is longitudinally aligned with one end of the fixed expansion bar.

[0014] Preferably, the pull rods are provided in two symmetrically distributed groups, and one end of each group of pull rods is hinged to the bottom end of each group of stop rods; A slack rod is movably sleeved between the two sets of tie rods; The two ends of the spring are respectively fixedly connected to one end of the two sets of pull rods.

[0015] Preferably, the follow-up expansion assembly further includes a telescopic tailgate hinged between one side of the two sets of side baffles; The telescopic tailgate consists of a positioning plate and a tension plate hinged to the positioning plate. The positioning plates are arranged in several groups evenly distributed in a linear array, wherein the middle of two groups of positioning plates is connected to the side baffle by a latch, and the bottom of two groups of positioning plates is hinged to the side baffle. The positioning plate surface is provided with several sets of equally spaced rollers.

[0016] Preferably, the long rail is composed of several groups of equidistantly distributed long strips; The long rails are provided in two symmetrically distributed sets, and each set of long rails is fixed to the outer wall of each set of side baffles. A groove is formed through the surface of the long strip, and a slider that matches the groove is fixed in the middle of the fixed expansion rod. The slider slides along the inside of the groove. A truss is fixed at the bottom of the other side of the side baffle near the temporary storage platform, and an electric push rod is installed on the truss. The piston end of the electric push rod is fixedly connected to two other sets of ring rods through a connecting frame.

[0017] Compared with the prior art, the beneficial effects of the present invention are: This invention achieves adaptive adjustment of the carriage size according to the bale length through the coordinated operation of the top support clearance component and the follow-up expansion component. When the bale rolls down the temporary storage platform, both ends simultaneously push against two sets of stop bars, forcing them to rotate and expand to the same distance as the bale length. Simultaneously, the fixed expansion rod drives two sets of side baffles to expand outwards, automatically adapting the carriage width to the bale length. The entire process requires no manual measurement or adjustment, relying entirely on the natural force of the rolling bale, making the equipment more adaptable. Simultaneously, the ratchet and pawl locking structure ensures that when bales of the same batch are of consistent length, the stop bars and side baffles always maintain the appropriate width, eliminating the need for repeated pushing and squeezing when subsequent bales roll down. This ensures the stability of the carriage size and reduces component wear. Compared to adjustments requiring multiple tedious manual steps each time, this significantly improves the convenience and continuity of operations. In addition, the spacing between the side baffles after adaptive expansion is precisely matched with the length of the hay bales. The hay bales are effectively limited by the side baffles inside the truck bed, so they will not shake much even when walking on bumps in the field, thus avoiding the problem of hay bales scattering or tilting and ensuring the neatness of stacking. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention.

[0020] Figure 3 This is a schematic diagram of the third three-dimensional structure of the present invention.

[0021] Figure 4 This is a front view structural diagram of the unloading state of the present invention.

[0022] Figure 5 This is a schematic diagram of the side baffle and temporary storage platform structure of the present invention.

[0023] Figure 6 This is a schematic diagram of the telescopic tailgate and roller structure of the present invention.

[0024] Figure 7 This is a schematic diagram of the stop bar structure of the present invention.

[0025] Figure 8 This is a schematic diagram of the initial state structure of the stop bar and pull rod of the present invention.

[0026] Figure 9 This is a schematic diagram of the expanded state structure of the stop bar and pull rod of the present invention.

[0027] Figure 10 This is a schematic diagram of the spring structure of the present invention.

[0028] Figure 11 This is a schematic diagram of the torsion spring structure of the present invention.

[0029] Figure 12 This is a schematic diagram of the ratchet and pawl structure of the present invention.

[0030] In the diagram: 1. Frame; 2. Tractor; 3. Multi-section pickup arm; 4. Side panel; 5. Telescopic tailgate; 6. Roller; 7. Temporary storage platform; 8. Stop bar; 9. Extension rod; 10. Long rail; 11. Fixed expansion rod; 12. Pull rod; 13. Loop rod; 14. Spring; 15. Connector; 16. Torsion spring; 17. Ratchet; 18. Arc disc; 19. Pad; 20. Stop block; 21. Spring; 22. Ring rod; 23. Electric push rod. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, those skilled in the art who have not made any innovative embodiments are all within the scope of protection of the present invention.

[0032] Please see Figures 1 to 12 This invention provides a technical solution: an integrated mobile device for picking up, stacking, and loading straw bales, comprising a frame 1, a tractor 2 positioned in front of the frame 1, and a multi-section picking arm 3 positioned between the frame 1 and the tractor 2, and further comprising: A conformal expansion mechanism mounted on the frame 1; The conformal expansion mechanism includes a top support clearance component and a follow-up expansion component; In specific implementation, a cylinder is integrated on the frame 1. Both ends of the cylinder are hinged to the frame 1 and two sets of ring rods 22 located on the extension rod 9 via trusses. During unloading, the cylinder pushes the ring rods 22, increasing the tilt angle of the side baffle 4 and the extension rod 9. This facilitates the rolling of the hay bales off the extension rod 9 when the telescopic tailgate 5 is opened later. Furthermore, the frame 1 and the multi-section picking arm 3 are both towed behind the tractor 2, following its movement. The multi-section picking arm 3 can lift the hay bales from the field and place them in the middle above the temporary storage platform 7. After the first layer of hay bales is filled, the electric push rod 23 pushes the temporary storage platform 7 separately, raising it to the second layer height. As the multi-section picking arm 3 places the hay bales on the temporary storage platform 7, they naturally roll down to the top of the lower layer. The above are common operating methods in the prior art; for details, please refer to the prior art. This invention will not elaborate further here.

[0033] The top support clearance assembly includes a temporary storage platform 7 set above one end of the frame 1, with stop bars 8 on both sides of the temporary storage platform 7, a pull rod 12 hinged to one bottom end of the stop bar 8, and a spring 14 fixed to the other end of the pull rod 12. The follow-up expansion assembly includes a fixed expansion rod 11 fixed to one end of the tie rod 12, and two sets of side baffles 4 are provided at the other end of the frame 1. An extension rod 9 is fixed between the bottoms of the two sets of side baffles 4, and a long rail 10 is fixed to the bottom surface of the side baffles 4. The baffle 8 rotates and expands due to the squeezing and pushing action of the round hay bale as it rolls down. The expansion distance is consistent with the length of the round hay bale, and the two sets of side baffles 4 expand synchronously in conjunction with each other, so that the distance between the two sets of side baffles 4 is adapted to the length of the round hay bale, thereby limiting the swaying amplitude of the hay bale.

[0034] The top support clearance assembly also includes connectors 15 symmetrically fixed on both sides of the temporary storage platform 7; The top surface of the connector 15 is fixed with an arc-shaped disk 18, and the top surface of the arc-shaped disk 18 is rotatably provided with a pawl 19. The top surface of the arc-shaped disk 18 near the pawl 19 is rotatably provided with a stop block 20. The surface of the arc-shaped disk 18 is provided with two sets of spring pieces 21. One end of one set of spring pieces 21 is tightly pressed against one end of the pawl 19, and one end of the other set of spring pieces 21 is tightly pressed against one end of the stop block 20. One end of the stop block 20 is movably locked at the other end of the pawl 19.

[0035] The stop lever 8 is designed with an inverted U-shaped structure; The two ends of the stop lever 8 are located above and below the temporary storage platform 7, respectively; The two ends of the stop lever 8 are set to be inclined; The middle section of the stop bar 8 is rotatably inserted into the connector 15; A ratchet 17 is fixedly fitted on the outer surface of the middle section of the stop bar 8, and the ratchet 17 is adapted to the pawl 19.

[0036] In specific implementation, as shown in the appendix Figure 11 and attached Figure 12 As shown, under the fixing action of the connector 15, the stop bar 8 and the temporary storage platform 7 always maintain a fixed positional relationship. The bales passing over the surface of the temporary storage platform 7 will inevitably pass through the stop bar 8, and when the bales roll towards the side baffles 4, they will push the stop bar 8 away, forcing it to rotate and making way for the bales. Figure 12 Based on the perspective, when the stop lever 8 drives the ratchet 17 to rotate counterclockwise, the pawl 19 does not obstruct the ratchet 17. However, when the ratchet 17 wants to rotate clockwise to reset, the ratchet 17 will be obstructed by the pawl 19 because the spring 21 always tries to push one end of the pawl 19 towards the ratchet 17. Thus, once the two sets of stop levers 8 are expanded, they will not reset on their own. This ensures that the distance between the side baffles 4 is always adapted to the length of the bale. Since the length of the bales in a batch processed by the same baler is basically the same, there is no need to push the stop lever 8 for each bale to reduce the wear and tear of the parts. Only after unloading in the later stage, the stop block 20 needs to be moved to separate the pawl 19 from the ratchet 17. Under the rebound action of the torsion spring 16 and the spring 14, the stop lever 8 and the side baffle 4 will automatically reset so as to adapt to the expansion of different batches of bales in the next cycle. After the torsion spring 16 and spring 14 rebound, the stop lever 8 and ratchet 17 will also return to their initial positions. The initial positions are not random but determined. That is to say, after the ratchet 17 is fully reset, the stop block 20 is released, and the ratchet 17 and pawl 19 can engage normally.

[0037] The extension rod 9 is provided with several groups that are evenly distributed; The extension rod 9 consists of a long rod and symmetrically movable inserts at both ends of the long rod; One end of the insertion rod is fixedly connected to the side wall of the two sets of side baffles 4 respectively; One set of long rods is hinged to frame 1; A ring sleeve 22 is rotatably fitted onto the outer surface of the long rod.

[0038] In practice, when the distance between the two sets of side baffles 4 changes, the insert rod slides inside the long rod and follows the position change of the side baffle 4. The hinge relationship between one set of long rods and the frame 1 allows it to rotate only, which means that one set of long rods will not detach from the frame 1. The design of the ring rod 22 allows the other sets of long rods to be connected to each other and to rotate independently. When the cylinder in the frame 1 pushes the truss and two sets of ring rods 22, it will cause the long rods used to rotate around the hinge axis between one set of long rods and the frame 1, which will cause the side baffle 4 and the telescopic tailgate 5 to rotate together. There is no direct connection between the insert rod, the side baffle 4 and the telescopic tailgate 5 and the frame 1, and the expansion and contraction of the three are not hindered.

[0039] The temporary storage platform 7 consists of rigid frames on both sides and rollers that are rotatably set between the two sets of rigid frames; The rollers are arranged in several groups at equal intervals; Both the temporary storage platform 7 and the extension rod 9 are set to be inclined, and the joint between the two is flush.

[0040] In practical implementation, in the initial state, as shown in the appendix Figure 4 As shown, both the temporary storage platform 7 and the extension rod 9 are slightly inclined so that the round bales roll down the surface of the temporary storage platform 7 into the interior of the extension rod 9. The roller and the long rod section of the extension rod 9 can reduce the friction when the bales roll, and the transition between the temporary storage platform 7 and the extension rod 9 is natural, so the bales roll smoothly.

[0041] The ring sleeve rod 22 consists of a long connecting rod and circular rings evenly distributed on the surface of the long connecting rod; There are four sets of ring rods 22, two sets of ring rods 22 are symmetrically distributed at both ends of the extension rod 9, and the other two sets of ring rods 22 are symmetrically distributed at both ends of the temporary storage platform 7; The long section of the extension rod 9 is rotatably inserted into the circular rings in the two sets of ring rods 22; The roller section of the temporary storage platform 7 is rotatably inserted into the circular sleeves in the other two sets of ring sleeve rods 22; In practice, the rollers in the temporary storage platform 7 are connected to each other by the ring rod 22, but can also rotate independently, so that the temporary storage platform 7 can rotate and move as a whole without affecting the rolling of the bales into the side baffle 4.

[0042] A torsion spring 16 is movably sleeved on the outer surface of the middle section of the stop lever 8; One end of the torsion spring 16 is fixedly connected to the connector 15, and the other end of the torsion spring 16 is pressed against the surface of the stop bar 8.

[0043] In practice, the torsion spring 16 is compressed after the stop lever 8 is forced to rotate. When the ratchet 17 is released later, the torsion spring 16 can assist the stop lever 8 to reset. The elasticity of the torsion spring 16 cannot resist the impact of the bale on the stop lever 8.

[0044] The distance between the top ends of the two sets of baffles 8 is less than the distance between the two sets of side baffles 4; The axis of symmetry of the two sets of stop bars 8 is consistent with the axis of symmetry of the two sets of side baffles 4; The top end of the stop bar 8 is longitudinally aligned with one end of the fixed expansion bar 11.

[0045] In practical implementation, to prevent the distance between the two sets of side baffles 4 from being exactly the same as the length of the bale, resulting in high frictional resistance on both sides of the bale, the distance between the two sets of side baffles 4 is always greater than the distance between the top ends of the two sets of baffles 8 when the bale is impacted. When the bale is impacted, the distance between the top ends of the two sets of baffles 8 is the same as the length of the bale. The multi-section picking arm 3, as existing technology, can already place the bale relatively accurately between the two sets of baffles 8. When the bale passes between the two sets of baffles 8, it will simultaneously push the two sets of baffles 8. The minimum distance between the two sets of baffles 8 is the length of the bale, and the distance between the two sets of fixed expansion rods 11 is always consistent with the minimum distance between the two sets of baffles 8.

[0046] The tie rod 12 is provided in two symmetrically distributed sets, and one end of each tie rod 12 is hinged to the bottom end of each set of stop rods 8. A slip-fit ​​rod 13 is movably sleeved between the two sets of tie rods 12; The two ends of the spring 14 are fixedly connected to one end of each of the two sets of pull rods 12.

[0047] In practice, when the two sets of stop levers 8 rotate in opposite directions simultaneously, they aim to drive the two sets of pull rods 12 to rotate synchronously. However, the two sets of pull rods 12 are restricted by the slipknot rod 13 and cannot participate in the rotation, thus being stretched to both ends. The spring 14 is forced to stretch, and the rebound of the spring 14 can assist the pull rods 12 in resetting, thereby pulling the two sets of stop levers 8 back to their original positions. The elastic force of the spring 14 cannot resist the impact force of the bale on the stop levers 8.

[0048] The follow-up expansion assembly also includes a telescopic tailgate 5 that is hinged between one side of the two sets of side baffles 4; The telescopic tailgate 5 consists of a positioning plate and a tension plate that is hinged to the positioning plate. The positioning plates are arranged in several groups evenly distributed in a linear array. The middle of two groups of positioning plates is connected to the side baffle 4 by a latch, and the bottom of two groups of positioning plates is hinged to the side baffle 4. The positioning plate surface is equipped with several sets of equally spaced rollers 6.

[0049] In specific implementation, as shown in the appendix Figure 6 As shown, the telescopic tailgate 5 and the latch are common structures in the prior art, and this invention is only shown and explained in a simple way here. Under the action of the latch, the telescopic tailgate 5 and the side baffle 4 are fixed together. Changes in the distance between the two sets of side baffles 4 will force the telescopic tailgate 5 to extend and retract synchronously. When unloading, the latch needs to be opened and the telescopic tailgate 5 needs to be rotated separately to open it, and the bales of grass will roll down the surface of the roller 6 to the ground.

[0050] The long rail 10 is composed of several groups of equidistantly distributed long strips; The long rails 10 are provided in two symmetrically distributed sets, and each set of long rails 10 is fixed to the outer wall of each set of side baffles 4. A groove is cut through the surface of the long strip, and a slider that matches the groove is fixed in the middle of the fixed expansion rod 11. The slider slides along the inside of the groove. A truss is fixed at the bottom of the other side of the side baffle 4 near the temporary storage platform 7, and an electric push rod 23 is installed on the truss. The piston end of the electric push rod 23 is fixedly connected to two other sets of ring rods 22 through a connecting frame.

[0051] In practice, the electric push rod 23 and the side baffle 4 are always kept at the same tilt angle. The electric push rod 23 is also fixedly connected to two other sets of ring rods 22. That is to say, the side baffle 4 will drive the temporary storage platform 7 to rotate and tilt together through the electric push rod 23. The electric push rod 23 can also push the temporary storage platform 7 alone, so that the height position of the temporary storage platform 7 changes, so that the hay bales can be placed on the lower hay bales. When the fixed expansion rod 11 expands with the baffle 8, it will drive the long rail 10 and the side baffle 4 to expand synchronously.

[0052] Working Principle: When using this integrated mobile device for picking up, stacking, and loading straw bales, the multi-section picking arm 3 first lifts each round straw bale from the field and precisely places it in the middle of the temporary storage platform 7. The temporary storage platform 7 is inclined, and the straw bales roll naturally down the roller surface under gravity. During the rolling process, both ends of the straw bales simultaneously contact and push the top inclined ends of the two sets of stop bars 8, forcing the two sets of stop bars 8 to rotate outward and expand. The straw bales pass between the two sets of stop bars 8, and after they have completely passed through, the distance between the tops of the two sets of stop bars 8 is exactly equal to the length of the straw bale. After the stop bars 8 rotate and expand, the one-way ratchet 17 and pawl 19 lock them, preventing them from reversing and maintaining the distance. While the stop bars 8 rotate, their bottom drives the pull rods 12. The two sets of pull rods 12 cannot rotate under the constraint of the slipknot 13 and can only be stretched to both ends, thus stretching the springs 14. When the pull rod 12 is stretched outward, the fixed expansion rod 11 at one end moves outward accordingly, simultaneously causing the two sets of side baffles 4 to expand outward, and the extension rod 9 to extend accordingly. Finally, the distance between the two sets of side baffles 4 is consistent with the distance between the two sets of baffles 8, that is, it matches the length of the hay bales. After the side baffles 4 are fully expanded, the hay bales continue to roll into the stacking compartment. Since the width of the compartment is basically consistent with the length of the hay bales, the hay bales are effectively limited by the side baffles 4 on both sides, so they will not shake significantly even when walking in the field.

[0053] Since the length of bales in the same batch is basically the same, the width of the stop bar 8 and the side baffle 4 remains unchanged when subsequent bales roll down, without the need for repeated adjustment. After the first layer of bales is laid, the electric push rod 23 pushes the temporary storage platform 7 to the height of the second layer, and the subsequent bales roll down to the top of the lower layer of bales, completing the stacking and loading layer by layer. During unloading, the telescopic tailgate 5 is opened, and the cylinder pushes the extension rod 9 and the side baffle 4 to tilt as a whole, increasing the tilt angle. Under the action of gravity, the bales roll down to the ground through the rollers 6 on the surface of the telescopic tailgate 5. After unloading is completed, the telescopic tailgate 5 is closed, and the stop block 20 is moved. The stop block 20 pushes the pawl 19 to disengage from the ratchet 17, releasing the lock. The compressed torsion spring 16 drives the stop bar 8 to rotate in the opposite direction to reset, and the stretched spring 14 retracts to pull the pull rod 12 and the fixed expansion rod 11 to reset. The fixed expansion rod 11 drives the two sets of side baffles 4 to retract inward, and the extension rod 9 shortens accordingly. After the stop lever 8 and side baffle 4 are fully reset, the stop block 20 is released, and the pawl 19, under the action of the spring piece 21, abuts against the ratchet 17 again, restoring the equipment to its initial state for the next operation. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mobile device for picking up, stacking, and loading straw bales, comprising a frame (1), a tractor (2) positioned in front of the frame (1), and a multi-section picking arm (3) positioned between the frame (1) and the tractor (2), characterized in that, Also includes: A conformal expansion mechanism is mounted on the frame (1); The conformal expansion mechanism includes a top support clearance component and a follow-up expansion support component; The top support clearance assembly includes a temporary storage platform (7) disposed above one end of the frame (1), with baffles (8) on both sides of the temporary storage platform (7), a pull rod (12) hinged to one bottom end of the baffle (8), and a spring (14) fixed to the other end of the pull rod (12). The follow-up expansion assembly includes a fixed expansion rod (11) fixed to one end of the tie rod (12), and two sets of side baffles (4) are provided at the other end of the frame (1). An extension rod (9) is fixed between the bottom of the two sets of side baffles (4), and a long rail (10) is fixed on the bottom surface of the side baffles (4). The baffle (8) is rotated and expanded by the squeezing and pushing action of the circular hay bale when it rolls down. The expansion distance is consistent with the length of the circular hay bale, and the two sets of side baffles (4) are expanded synchronously in conjunction with each other, so that the distance between the two sets of side baffles (4) is adapted to the length of the circular hay bale, so as to limit the swaying amplitude of the hay bale.

2. The integrated mobile device for picking up, stacking, and loading straw bales according to claim 1, characterized in that: The top support clearance component also includes connectors (15) symmetrically fixed on both sides of the temporary storage platform (7); The top surface of the connector (15) is fixed with an arc-shaped disk (18), and a pawl (19) is rotatably provided on the top surface of the arc-shaped disk (18), and a stop block (20) is rotatably provided on the top surface of the arc-shaped disk (18) near the pawl (19). The surface of the arc-shaped disk (18) is provided with two sets of spring pieces (21), one end of which is pressed against one end of the pawl (19), and the other end of which is pressed against one end of the stop block (20). One end of the stop block (20) is movably engaged at the other end of the pawl (19).

3. The integrated mobile device for picking up, stacking, and loading straw bales according to claim 1, characterized in that: The extension rod (9) is provided with several groups that are evenly distributed; The extension rod (9) consists of a long rod and inserts symmetrically and movable at both ends of the long rod; One end of the insertion rod is fixedly connected to the side wall of the two sets of side baffles (4); One set of the long rods is hinged to the frame (1); The outer surface of the long rod is rotatably fitted with a ring sleeve rod (22).

4. The integrated mobile device for picking up, stacking, and loading straw bales according to claim 1, characterized in that: The temporary storage platform (7) consists of rigid frames on both sides and rollers rotatably set between the two sets of rigid frames; The rollers are arranged in several groups at equal intervals; The temporary storage platform (7) and the extension rod (9) are both set to be inclined, and the joint between the two is flush.

5. The integrated mobile device for picking up, stacking, and loading straw bales according to claim 3, characterized in that: The ring sleeve rod (22) is composed of a long connecting rod and circular rings evenly distributed on the surface of the long connecting rod; The ring sleeve rod (22) is provided in four sets, of which two sets of the ring sleeve rod (22) are symmetrically distributed at both ends of the extension rod (9), and the other two sets of the ring sleeve rod (22) are symmetrically distributed at both ends of the temporary storage platform (7); The long rod section of the extension rod (9) is rotatably inserted into the circular rings in the two sets of ring rods (22); The roller section of the temporary storage platform (7) is rotatably inserted into the annular sleeves in the other two sets of annular rods (22).

6. The integrated mobile device for picking up, stacking, and loading straw bales according to claim 2, characterized in that: The stop bar (8) is configured as an inverted U-shaped structure; The two ends of the stop bar (8) are located above and below the temporary storage platform (7), respectively; The two ends of the stop (8) are set to be inclined; The middle section of the stop bar (8) is rotatably inserted into the connector (15); A ratchet (17) is fixedly sleeved on the outer surface of the middle section of the stop bar (8), and the ratchet (17) is adapted to the pawl (19); A torsion spring (16) is movably sleeved on the outer surface of the middle section of the stop bar (8). One end of the torsion spring (16) is fixedly connected to the connector (15), and the other end of the torsion spring (16) is pressed against the surface of the stop bar (8).

7. The integrated mobile device for picking up, stacking, and loading straw bales according to claim 1, characterized in that: The distance between the top ends of the two sets of baffles (8) is less than the distance between the two sets of side baffles (4); The axis of symmetry of the two sets of stop bars (8) is consistent with the axis of symmetry of the two sets of side baffles (4); The top end of the stop bar (8) is longitudinally aligned with one end of the fixed expansion bar (11).

8. The integrated mobile device for picking up, stacking, and loading straw bales according to claim 1, characterized in that: The pull rod (12) is provided in two symmetrically distributed sets, and one end of each set of pull rods (12) is hinged to the bottom end of each set of stop rods (8); A slack rod (13) is movably sleeved between the two sets of tie rods (12); The two ends of the spring (14) are respectively fixedly connected to one end of the two sets of pull rods (12).

9. The integrated mobile device for picking up, stacking, and loading straw bales according to claim 1, characterized in that: The follow-up expansion assembly also includes a telescopic tailgate (5) hinged between one side of the two sets of side baffles (4); The telescopic tailgate (5) consists of a positioning plate and a tension plate hinged to the positioning plate; The positioning plates are provided in several groups that are equidistantly distributed in a linear array. The middle of two groups of positioning plates is connected to the side baffle (4) by a latch, and the bottom of two groups of positioning plates is hinged to the side baffle (4). The positioning plate surface is provided with several sets of equally spaced rollers (6).

10. The integrated mobile device for picking up, stacking, and loading straw bales according to claim 1, characterized in that: The long rail (10) is composed of several groups of equally spaced long strips; The long rail (10) is provided in two symmetrically distributed sets, and each set of the long rail (10) is fixed to the outer wall of each set of side baffles (4); The surface of the long strip plate is provided with a through groove, and a slider adapted to the groove is fixed in the middle of the fixed expansion rod (11). The slider slides along the inside of the groove. A truss is fixed at the bottom of the other side of the side baffle (4) near the temporary storage platform (7), and an electric push rod (23) is provided on the truss. The piston end of the electric push rod (23) is fixedly connected to two other sets of ring rods (22) through a connecting frame.

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