Truss device of large sprinkling machine

Abstract

The invention provides a large sprinkling machine truss device which comprises a main frame, two auxiliary frames and a traction mechanism, and the main frame is installed on a sprinkling machine; the two auxiliary frames are symmetrically arranged at the two ends of the main frame, the auxiliary frames and the main frame are rotationally connected through shaft bodies, and the auxiliary frames can be screwed into the main frame; a locking assembly is arranged between the auxiliary frame and the main frame, and the shaft body and the locking assembly are located at the ends, connected with the main frame, of the auxiliary frame respectively. The traction mechanism comprises a base plate, a telescopic supporting assembly, a winding assembly and two steel wire ropes, and the base plate is connected with the main frame and located in the middle of the main frame; the telescopic supporting assembly and the winding assembly are installed on the base plate. And the two steel wire ropes are symmetrically arranged. According to the truss device of the large sprinkling machine, the auxiliary frame is stored in the main frame through the traction mechanism, the disassembly and assembly process is simplified, the occupied space is reduced, and therefore convenient conditions are provided for transfer.

Description

Large sprinkler truss assembly Technical Field

[0001] This application relates to the field of sprinkler irrigation technology, and more particularly to a large sprinkler irrigation truss device. Background Technology

[0002] Large-scale sprinkler irrigation machines (such as disc sprinkler irrigation machines and translation sprinkler irrigation machines) are core equipment for modern large-scale agricultural production. Their stable, efficient, and long-term operation is crucial to ensuring crop yield and irrigation quality. The truss support structure, as the "backbone" of the sprinkler irrigation machine spanning the farmland, is an indispensable component of large-scale sprinkler irrigation machines.

[0003] In related technologies, sprinkler irrigation machine trusses typically employ a multi-stage assembly structure. After each operation, they must be disassembled and transported step by step, only to be reassembled step by step upon arrival at the next work area. However, this repetitive disassembly and assembly process is not only cumbersome, but the disassembled components also occupy a significant amount of space, causing inconvenience for transportation and turnover. Summary of the Invention

[0004] This application aims to at least partially solve one of the technical problems in the aforementioned technologies.

[0005] Therefore, one objective of this application is to provide a large sprinkler truss device that uses a traction mechanism to house the sub-frame inside the main frame, simplifying the assembly and disassembly process, reducing the space occupied, and thus providing convenient conditions for transportation.

[0006] To achieve the above objectives, a first aspect of this application provides a large sprinkler irrigation machine truss device, comprising: a main frame, two sub-frames, and a traction mechanism, wherein the main frame is mounted on the sprinkler irrigation machine; the two sub-frames are symmetrically arranged at both ends of the main frame, and the sub-frames are rotatably connected to the main frame via shafts, wherein the sub-frames can be screwed into the interior of the main frame; a locking assembly is provided between the sub-frames and the main frame, wherein the shaft and the locking assembly are respectively located at the ends of the sub-frames connected to the main frame; the traction mechanism includes a base plate, a retractable support assembly, a winding assembly, and two steel wire ropes, wherein the base plate is connected to the main frame and located in the middle of the main frame; the retractable support assembly and the winding assembly are respectively mounted on the base plate; the two steel wire ropes are symmetrically arranged, the steel wire ropes are wound around the retractable support assembly, and the two ends of the steel wire ropes are respectively connected to the sub-frames and the winding assembly.

[0007] In addition, the large sprinkler irrigation machine truss device proposed in the above embodiments of this application may also have the following additional technical features: further, the locking assembly includes a locking pin and two sets of frames, wherein the two sets of frames are symmetrically arranged on the sub-frame, and the frames and the main frame are respectively provided with through holes; the locking pin passes through one set of frames and the through holes on the main frame.

[0008] Furthermore, the retractable support assembly includes two support components and a drive component, wherein the two support components are symmetrically arranged on both sides of the drive component; each support component includes a base, two sets of hinge plates, and two pulleys, wherein the base is disposed on the base plate; the two sets of hinge plates are connected end to end, the length of one set of hinge plates is greater than that of the other set of hinge plates, one end of one set of hinge plates is pivotally connected to the base, and one end of the other set of hinge plates is pivotally connected to the drive component; one pulley is installed at the connection point of the two sets of hinge plates, and the other pulley is installed at the connection point between one end of the other set of hinge plates and the drive component.

[0009] Furthermore, the driving component includes a hydraulic telescopic rod and a first connecting member, wherein the hydraulic telescopic rod is mounted on the base plate, the first connecting member is pivotally connected to one end of another set of hinge plates, and the output end of the hydraulic telescopic rod is connected to the first connecting member.

[0010] Furthermore, the driving component includes a double-headed automatic telescopic rod and two second connecting members, wherein the two second connecting members are respectively connected to another set of hinge plates in the corresponding support component; the double-headed automatic telescopic rod is disposed between the two second connecting members.

[0011] Furthermore, the main frame and the sub-frame are respectively provided with multiple support rods in the middle part, the support rods and the shaft are located on the same horizontal plane, and the support rods and the shaft are respectively provided with fixing rings.

[0012] Furthermore, the subframe is provided with two pull rings symmetrically at the end away from the main frame.

[0013] Furthermore, two support plates are symmetrically arranged on the main frame, and a fixing plate is connected to the support plate.

[0014] Compared with the prior art, the technical solution provided in this application has the following beneficial effects: The large sprinkler truss device of this application releases the wire rope through the winding assembly, allowing the connection between the main frame and the sub-frame to rotate freely. Then, the pulling path of the wire rope is changed, causing the sub-frame to rotate into the interior of the main frame. The locking assembly is used to fix the sub-frame inside the main frame. The height of the telescopic support assembly can be determined by the length of the main frame and the sub-frame. During transportation, the highest point of the telescopic support assembly can be close to the surface of the main frame to improve the passability of the sprinkler machine during movement. The above operation method simplifies the disassembly and assembly process, reduces the space occupied, and thus provides convenient conditions for subsequent transportation.

[0015] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, in which: FIG1 is a schematic structural diagram of a large sprinkler irrigation machine truss device according to an embodiment of this application; FIG2 is an enlarged schematic structural diagram of area A in FIG1; FIG3 is a schematic structural diagram of the main frame portion of a large sprinkler irrigation machine truss device according to an embodiment of this application; FIG4 is a schematic structural diagram of the sub-frame of a large sprinkler irrigation machine truss device according to an embodiment of this application; FIG5 is a schematic structural diagram of the main frame and sub-frame of a large sprinkler irrigation machine truss device in a rotating state according to an embodiment of this application; FIG6 is a schematic structural diagram of the main frame and sub-frame of a large sprinkler irrigation machine truss device in a retracted state according to an embodiment of this application; FIG7 is a schematic structural diagram of a retractable support component of a large sprinkler irrigation machine truss device according to an embodiment of this application; FIG8 is a schematic structural diagram of a retractable support component of a large sprinkler irrigation machine truss device according to another embodiment of this application.

[0017] Reference numerals: 1. Main frame; 2. Sub-frame; 21. Shaft; 22. Locking assembly; 221. Frame; 222. Through hole; 223. Locking pin; 3. Pulling mechanism; 31. Base plate; 32. Telescopic support assembly; 321. Support component; 322. Support; 323. Hinge plate; 324. Pulley; 325. Drive component; 3251. Hydraulic telescopic rod; 3252. First connecting piece; 3253. Second connecting piece; 3254. Double-headed automatic telescopic rod; 33. Winding assembly; 34. Wire rope; 41. Support rod; 42. Fixing ring; 5. Pull ring; 61. Support plate; 62. Fixing plate. Detailed Implementation

[0018] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0019] The large sprinkler truss device of this application embodiment is described below with reference to the accompanying drawings.

[0020] As shown in Figures 1-8, the large sprinkler irrigation machine truss device of this application embodiment may include: a main frame 1, two auxiliary frames 2 and a traction mechanism 3.

[0021] The main frame 1 is installed on the sprinkler machine.

[0022] It should be noted that the sprinkler described in this embodiment can be either a disc sprinkler or a mobile sprinkler, and its specific application can be determined according to the actual situation.

[0023] Two sub-frames 2 are symmetrically arranged at both ends of the main frame 1. The sub-frames 2 and the main frame 1 are rotatably connected by a shaft 21, and the sub-frames 2 can be screwed into the interior of the main frame 1.

[0024] It should be noted that the main frame 1 and the sub-frame 2 described in this embodiment both adopt a quadrilateral frame structure. In order to further reduce the mass of the structure, under the premise of satisfying the structural strength and stability, the main frame 1 and the sub-frame 2 can also adopt a frame structure with a triangular cross section. The specific shape and structure have been disclosed in the prior art, so they will not be described in detail here.

[0025] In the embodiments of this application, the main frame 1 and the sub-frame 2 constitute the overall structure of the truss. The sub-frame 2 can be screwed into the interior of the main frame 1, which means that the length and cross-sectional dimensions of the sub-frame 2 are smaller than the specifications of the main frame 1. Therefore, during the rotation of the sub-frame 2, there will be no motion interference between the main frame 1 and the sub-frame 2.

[0026] A locking assembly 22 is provided between the sub-frame 2 and the main frame 1, wherein the shaft 21 and the locking assembly 22 are respectively located at the end where the sub-frame 2 is connected to the main frame 1.

[0027] The traction mechanism 3 includes a base plate 31, a telescopic support assembly 32, a winding assembly 33, and two steel wire ropes 34. The traction mechanism 3 is used not only to fix one end of the two sub-frames 2 to enhance the overall integrity of the truss, but also to assist the sub-frames 2 in rotating so that the sub-frames 2 are housed inside the main frame 1.

[0028] The base plate 31 is connected to the main frame 1 and is located in the middle of the main frame 1. The telescopic support assembly 32 and the winding assembly 33 are respectively installed on the base plate 31. The telescopic support assembly 32 is used to adjust the pulling height and position of the wire rope 34 according to the length of the truss, and to change the transmission direction of the wire rope 34 when the wire rope 34 pulls the sub-frame 2.

[0029] It should be noted that the winding assembly 33 described in this embodiment includes a drive motor, a winding roller shaft and a baffle. Two steel wire ropes 34 are wound around the winding roller shaft at the same time. The specific connection structure and working principle of the two wire ropes have been disclosed in the prior art, so they will not be described in detail here.

[0030] Two steel wire ropes 34 are arranged symmetrically and are wound around the telescopic support assembly 32. The two ends of the steel wire ropes 34 are connected to the sub-frame 2 and the winding assembly 33, respectively.

[0031] Specifically, the sprinkler machine (e.g., a mobile sprinkler machine) carries the truss and moves at a constant speed in the target area. The water source is diverted through the sprinkler pipes arranged inside the truss to the sprinkler heads and sprayed out. After the target area is irrigated, the sprinkler machine needs to be moved to the next work area. In order to facilitate the movement of the sprinkler machine, relevant technicians need to carry out the truss storage operation.

[0032] First, the relevant technicians removed the locking assembly 22 between the main frame 1 and the two auxiliary frames 2. Then, the relevant technicians moved away from the sprinkler and sent an operation signal to the winding assembly 33 through the external remote control device. The winding assembly 33 reversed, and the wire rope 34 was released. Under the action of gravity, the auxiliary frame 2 rotated around the shaft 21 as the rotation center until the auxiliary frame 2 was perpendicular to the ground. The relevant technicians then stopped operating the external remote control device.

[0033] Afterwards, the relevant technicians released the safety hook between the wire rope 34 and the subframe 2, and sent an operation signal to the winding assembly 33 using an external remote control device. The winding assembly 33 rotated forward, and the wire rope 34 pulled the safety hook towards the pulling mechanism 3 until the safety hook moved to the telescopic support assembly 32. The relevant technicians then sent a signal to the winding assembly 33 again, and the winding assembly 33 reversed. The wire rope 34 passed through the interior of the main frame 1 under the action of gravity. The relevant technicians pulled one end of the wire rope 34, so that the safety hook was resuspended at one end of the subframe 2.

[0034] Then, the winding assembly 33 is run again. The winding assembly 33 rotates forward, and the wire rope 34 pulls the sub-frame 2 to continue rotating until the sub-frame 2 is housed inside the main frame 1. The winding assembly 33 stops running, and the relevant technicians place the locking assembly 22 between the main frame 1 and the sub-frame 2 to fix the two. The above operation method simplifies the disassembly and assembly process, greatly reduces the lateral span of the truss, and improves the passability of the sprinkler machine when it moves.

[0035] Finally, the retractable support assembly 32 is operated by an external remote control device, so that its top is close to the main frame 1, thereby further improving the mobility of the sprinkler machine during movement, reducing the space occupied, and thus providing convenient conditions for transportation.

[0036] As a possible scenario, depending on the road conditions, relevant technicians can separate the main frame 1 from the main body of the sprinkler machine and use external hoisting equipment to place the truss on external transport equipment, thereby facilitating the transfer of the truss.

[0037] After being transferred to the target work area, the relevant technicians repeat the above steps in reverse to complete the connection between the main frame 1 and the auxiliary frame 2.

[0038] In the embodiments of this application, when the winding assembly 33 is running, the two wire ropes 34 are wound or released simultaneously, and the two sub-frames 2 are simultaneously housed inside the main frame 1.

[0039] It should be noted that this technical solution only shows one implementation where the sub-frame 2 is housed inside the main frame 1. As a possible case, depending on the length of the truss and the height of the truss from the ground, the main body of the truss may include the main frame 1 and multiple sub-frames 2. One sub-frame 2 can be housed inside another sub-frame 2, and finally housed inside the main frame 1. For specific implementation methods, please refer to the above implementation method, so they will not be described in detail here.

[0040] Understandably, the length of the subframe 2 is less than the height of the truss from the ground, so as to ensure that the subframe 2 will not touch the ground during rotation.

[0041] In one embodiment of this application, as shown in FIG2, the locking component 22 includes a locking pin 223 and two sets of frames 221.

[0042] Two sets of frames 221 are symmetrically arranged on the sub-frame 2. Through holes 222 are opened on the frames 221 and the main frame 1 respectively. Locking pins 223 pass through the through holes 222 on one set of frames 221 and the main frame 1.

[0043] It should be noted that each set of frames 221 described in this embodiment includes two frames 221. The specific structure of the locking pin 223 has been disclosed in the prior art, so it will not be described in detail here.

[0044] Specifically, the relevant technicians release the restriction of the locking pin 223, and the sub-frame 2 rotates around the shaft 21. When the sub-frame 2 rotates into the interior of the main frame 1, the through hole 222 opened on the other set of frame 221 is aligned with the through hole 222 opened on the main frame 1. The relevant technicians then place the locking pin 223 in the through hole 222 to fix the main frame 1 and the sub-frame 2.

[0045] In one embodiment of this application, as shown in Figures 1 and 7, the retractable support assembly 32 includes two support components 321 and a drive component 325.

[0046] Two support components 321 are symmetrically arranged on both sides of the drive component 325. The support component 321 includes a support 322, two sets of hinge plates 323 and two pulleys 324.

[0047] The support 322 is mounted on the base plate 31. Two sets of hinge plates 323 are connected end to end. The length of one set of hinge plates 323 is greater than that of the other set of hinge plates 323. One end of one set of hinge plates 323 is pivotally connected to the support 322, and one end of the other set of hinge plates 323 is pivotally connected to the drive component 325.

[0048] One pulley 324 is installed at the connection of two sets of hinge plates 323, and another pulley 324 is installed at the connection between one end of another set of hinge plates 323 and the drive component 325.

[0049] In one embodiment of this application, as shown in Figures 1 and 7, the drive component 325 includes a hydraulic telescopic rod 3251 and a first connector 3252.

[0050] The hydraulic telescopic rod 3251 is mounted on the base plate 31, the first connector 3252 is pivotally connected to one end of another set of hinge plates 323, and the output end of the hydraulic telescopic rod 3251 is connected to the first connector 3252.

[0051] In the embodiments of this application, the length of one set of hinge plates 323 is greater than that of another set of hinge plates 323. This allows the drive component 325 to lower the height of one end of the other set of hinge plates 323, while the other end of the other set of hinge plates 323 is raised under the support of the first set of hinge plates 323. This causes the support point of the wire rope 34 to be closer to the end of the subframe 2, thereby achieving a better support effect.

[0052] Specifically, referring to Figures 1 and 7, in this state, one pulley 324 is close to one end of the subframe 2. During the rotation of the subframe 2 toward the ground, the force borne by the two pulleys 324 is smaller than that of a single pulley, and the telescopic support assembly 32 is less likely to be damaged. During the rotation of the subframe 2 from the ground toward the interior of the main frame 1, the wire rope 34 is only wrapped around the other pulley 324, thereby obtaining a better traction effect.

[0053] During use, relevant technicians judge the strength of the truss structure by observing the curvature of the entire truss. If the angle of drooping at both ends of the truss is large, the relevant technicians can operate the hydraulic telescopic rod 3251 through an external remote control device to lower the height of one end of the other set of hinge plates 323, thereby forcing the other end of the other set of hinge plates 323 to rise. The support point of a pulley 324 and the wire rope 34 is close to the end of the sub-frame 2, and the end of the sub-frame 2 rises up, making the angle of drooping at both ends of the truss smaller.

[0054] In addition, when the overall length of the truss is large, the hydraulic telescopic rod 3251 pushes the two pulleys 324 close to itself to rise, thereby raising the position of the wire rope 34 that is supported, thus ensuring the stability of the long truss when the sprinkler machine moves.

[0055] It is understandable that by adopting the above technical solution, the deformable support component 32 has a large deformation range and is suitable for truss structures of various lengths, thus having the advantage of wide applicability.

[0056] To further clarify the above technical solution, in another embodiment of this application, the drive component 325 includes a double-headed automatic telescopic rod 3254 and two second connectors 3253.

[0057] Among them, the two second connecting pieces 3253 are respectively connected to another set of hinge plates 323 in the corresponding support component 321, and the double-headed automatic telescopic rod 3254 is arranged between the two second connecting pieces 3253.

[0058] In the embodiments of this application, the length of one set of hinge plates 323 is greater than that of another set of hinge plates 323. This allows the driving component 325 to raise the height of one end of the other set of hinge plates 323, and under the support of the first set of hinge plates 323, the height of the other end of the other set of hinge plates 323 will also increase, so that the support point of the wire rope 34 is closer to the end of the subframe 2, thereby obtaining a better support effect.

[0059] Understandably, by adopting the above technical solution, the retractable support component 32 has a small deformation range and is suitable for supporting structures with a small truss length. In addition, the retractable support component 32 can fit into the main frame 1, thereby making the volume of the truss smaller after it is retracted and stored, thus achieving better passability during transportation.

[0060] Specifically, referring to Figures 6 and 8, in this state, the telescopic support assembly 32 is in contact with the main frame 1. When the double-headed automatic telescopic rod 3254 is running, the height of one end of the other set of hinge plates 323 is raised, and the height of the other end of the other set of hinge plates 323 is increased, so that the support point of the wire rope 34 is close to the end of the sub-frame 2, thereby supporting the truss.

[0061] In one embodiment of this application, as shown in FIG4, the main frame 1 and the sub-frame 2 are respectively provided with a plurality of support rods 41 in the middle part. The support rods 41 and the shaft 21 are located on the same horizontal plane, and the support rods 41 and the shaft 21 are respectively provided with fixing rings 42.

[0062] It should be noted that the fixing ring 42 described in this embodiment can be passed through the sprinkler pipe, and the sprinkler pipe is connected to the fixing ring 42 by means of a tension spring, so as to satisfy the sub-frame 2 to drive the sprinkler pipe to bend normally when rotating.

[0063] It should be noted that since multiple support rods 41 are located in the middle of the main frame 1 and the sub-frame 2, and the sub-frame 2 can be stored inside the main frame 1, the support rods 41 and fixing rings 42 on the sub-frame 2 will not interfere with the movement of the support rods 41 and fixing rings 42 inside the main frame 1 when they are screwed into the main frame 1.

[0064] Understandably, the main sprinkler pipe is located in the middle of the main frame 1 and the auxiliary frame 2. After the auxiliary frame 2 is housed inside the main frame 1, the main sprinkler pipe is still located in the middle of the main frame 1 and the auxiliary frame 2. Therefore, during the operation or transfer of the sprinkler machine, the truss can protect the main sprinkler pipe and prevent it from being damaged by external forces.

[0065] In one embodiment of this application, as shown in FIG4, two pull rings 5 ​​are symmetrically provided at the end of the sub-frame 2 away from the main frame 1.

[0066] Specifically, referring to Figure 1, when the truss-deployed sprinkler is operating normally, the safety hook of the wire rope 34 is connected to a pull ring 5 above the sub-frame 2; referring to Figure 6, when the sub-frame 2 is screwed into the main frame 1 from a vertical position, the safety hook of the wire rope 34 is connected to a pull ring 5 below the sub-frame 2, so that the point of action between the wire rope 34 and the sub-frame 2 is located at the position where the pull ring 5 contacts the safety hook, which facilitates the wire rope 34 pulling the sub-frame 2.

[0067] In one embodiment of this application, as shown in FIG6, two support plates 61 are symmetrically provided on the main frame 1, and a fixing plate 62 is connected to the support plate 61.

[0068] Understandably, the fixing plate 62 is provided with a through groove for the fastener to pass through, and relevant technicians can fix the truss in the preset position of the sprinkler machine through the support plate 61 and the fixing plate 62.

[0069] In summary, the large sprinkler truss device of this application releases the wire rope through the winding assembly, allowing the connection between the main frame and the sub-frame to rotate freely. Then, the pulling path of the wire rope is changed, causing the sub-frame to rotate into the interior of the main frame. The locking assembly then fixes the sub-frame inside the main frame. The height of the telescopic support assembly can be determined by the length of the main frame and the sub-frame. During transport, the highest point of the telescopic support assembly can be close to the surface of the main frame to improve the passability of the sprinkler machine during movement. The above operation method simplifies the disassembly and assembly process, reduces the space occupied, and thus provides convenient conditions for subsequent transport.

[0070] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0071] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0072] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A truss device for a large sprinkler irrigation machine, characterized in that, include: The system comprises a main frame, two sub-frames, and a pulling mechanism. The main frame is mounted on a sprinkler machine. The two sub-frames are symmetrically arranged at both ends of the main frame and are rotatably connected to the main frame via shafts. Each sub-frame can be screwed into the main frame. A locking assembly is provided between the sub-frames and the main frame, with the shaft and locking assembly located at the ends of the sub-frames connected to the main frame, respectively. The pulling mechanism includes a base plate, a retractable support assembly, a winding assembly, and two steel wire ropes. The base plate is connected to the main frame and located in the middle of the main frame. The retractable support assembly and the winding assembly are respectively mounted on the base plate. The two steel wire ropes are symmetrically arranged and wound around the retractable support assembly, with both ends of the steel wire ropes connected to the sub-frames and the winding assembly, respectively.

2. The large sprinkler irrigation machine truss device according to claim 2, characterized in that, The locking assembly includes a locking pin and two sets of frames, wherein the two sets of frames are symmetrically arranged on the sub-frame, and through holes are respectively provided on the frames and the main frame; the locking pin passes through one set of frames and the through hole on the main frame.

3. The large sprinkler irrigation machine truss device according to claim 3, characterized in that, The retractable support assembly includes two support components and a drive component, wherein the two support components are symmetrically arranged on both sides of the drive component; each support component includes a base, two sets of hinge plates, and two pulleys, wherein the base is mounted on the base plate; the two sets of hinge plates are connected end to end, the length of one set of hinge plates is greater than that of the other set of hinge plates, one end of one set of hinge plates is pivotally connected to the base, and one end of the other set of hinge plates is pivotally connected to the drive component; one pulley is installed at the connection point of the two sets of hinge plates, and the other pulley is installed at the connection point between one end of the other set of hinge plates and the drive component.

4. The large sprinkler irrigation machine truss device according to claim 1, characterized in that, The driving component includes a hydraulic telescopic rod and a first connecting member, wherein the hydraulic telescopic rod is mounted on the base plate, the first connecting member is pivotally connected to one end of another set of hinge plates, and the output end of the hydraulic telescopic rod is connected to the first connecting member.

5. The large sprinkler irrigation machine truss device according to claim 5, characterized in that, The driving component includes a double-headed automatic telescopic rod and two second connecting members, wherein the two second connecting members are respectively connected to another set of hinge plates in the corresponding support component; the double-headed automatic telescopic rod is disposed between the two second connecting members.

6. The large sprinkler irrigation machine truss device according to claim 6, characterized in that, The main frame and the sub-frame are respectively provided with multiple support rods in the middle section. The support rods and the shaft are located on the same horizontal plane, and the support rods and the shaft are respectively provided with fixing rings.

7. The large sprinkler irrigation machine truss device according to claim 7, characterized in that, The subframe is provided with two symmetrical pull rings at the end away from the main frame.

8. The large sprinkler irrigation machine truss device according to claim 1, characterized in that, Two support plates are symmetrically arranged on the main frame, and a fixing plate is connected to the support plate.

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