Traction structure of seeding machine and seeding machine

Abstract

The utility model provides a sower traction structure and sower, including cross brace subassembly and two traction units that are arranged oppositely along the transverse direction, each traction unit includes mounting portion, connecting portion and support portion, the mounting portion is connected to the middle of the frame of sower, the connecting portion includes upper connecting frame and lower connecting frame subassembly, and the support portion is connected to the lower connecting frame subassembly. The middle part of the upper connecting frame is sunken to form a penetrating space through which a fertilizer discharging rotating shaft of the seeder penetrates. The whole traction structure is integrally mounted on the rack through the mounting part, the supporting part supports the upper connecting frame to a sufficient height, and the upper connecting frame and the two lower connecting frame assemblies form a triangular traction surface, so that the traction gravity center position of the whole seeding machine is proper, and the seeding machine is more stable during pulling; the upper connecting frame is arranged to be in a middle concave form, so that the fertilizer discharging rotating shaft can penetrate through conveniently, the position of the upper connecting frame does not need to be heightened, the gravity center and the height position of the upper fertilizer box are synchronously lowered, overturning during traction is avoided, and the structural stability is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural equipment technical field especially a seeding machine traction structure and seeding machine. BACKGROUND

[0002] With the improvement of the mechanization level of production technology, the seeding machine as a common seeding machine can improve the seeding efficiency, guarantee the seeding quality, reduce the artificial labor intensity and help the uniform growth of crops and improve the yield.

[0003] The seeding machine is usually pulled by a tractor as external traction, and the traction structure for pulling by the tractor in the prior art is usually set to a higher support structure form to ensure sufficient installation space for the penetration of other components, and the height of the frame is also increased, but this will make the fertilizer tank installed on the top of the frame at a higher height position, resulting in a higher center of gravity, so that the overall overturning problem is prone to occur during operation.

[0004] Therefore, it is necessary to provide a seeding machine traction structure and a seeding machine to solve or at least alleviate the above-mentioned defects. SUMMARY

[0005] The main purpose of the utility model is to provide a seeding machine traction structure to solve the problem that the seeding machine traction structure in the prior art is prone to cause the fertilizer tank to have a higher center of gravity.

[0006] To achieve the above-mentioned purpose, the utility model provides a seeding machine traction structure, which comprises a cross brace assembly and two traction units arranged opposite to each other in the transverse direction, each traction unit comprises a mounting portion, a connecting portion and a supporting portion, wherein,

[0007] The mounting portion is arranged in the longitudinal direction, and the mounting portion is used to connect to the middle part of the frame of the seeding machine.

[0008] The connecting portion comprises an upper connecting frame and a lower connecting frame assembly, and the supporting portion comprises a first inclined strut and a second inclined strut, wherein,

[0009] The lower connecting frame assembly is used to connect to the frame and is arranged close to the first end of the mounting portion, the bottom end of the first inclined strut is connected to the inner side of the lower connecting frame assembly, the top end of the first inclined strut is connected to the first end of the upper connecting frame, the bottom end of the second inclined strut is connected to the inner side of the second end of the mounting portion, the top end of the second inclined strut is connected to the second end of the upper connecting frame, and the cross brace assembly is connected between the two upper connecting frames.

[0010] The first end of the upper connecting frame and the lower connecting frame assembly are provided with a traction connecting hole for connecting with a tractor, and the middle part of the upper connecting frame is recessed to form a through space for the seed metering shaft of the seeding machine.

[0011] Preferably, the middle part of the upper connecting frame is in a V-shaped opening upward.

[0012] Preferably, the lower connecting frame assembly comprises a horizontal connecting plate, a connecting main plate and a connecting auxiliary plate which are arranged in a transverse direction, the horizontal connecting plate is used for connecting with the frame, the middle part of the connecting main plate and the top of the connecting auxiliary plate are recessed to form a clamping groove matched with the horizontal connecting plate, the connecting main plate and the connecting auxiliary plate are connected with the horizontal connecting plate through the clamping groove, the bottom end of the first inclined support is connected with the inner side of the connecting main plate, and the connecting main plate and the connecting auxiliary plate are provided with the traction connecting hole.

[0013] Preferably, the mounting part is recessed to form an arc-shaped slot for the transmission shaft of the seeding machine.

[0014] Preferably, each traction unit further comprises a bearing seat assembly, the bearing seat assembly comprises a support angle steel and a U-shaped clamp for the transmission shaft of the seeding machine, the support angle steel is connected with the outer side of the mounting part, and the U-shaped clamp is connected with the support angle steel and arranged at the arc-shaped slot.

[0015] Preferably, the connecting main plate and the connecting auxiliary plate are recessed to form a bearing space matched with the frame, and the end of the connecting main plate and the connecting auxiliary plate away from the connecting hole is further provided with a clamping block upward.

[0016] Preferably, the lower connecting frame assembly further comprises a support plate, the support plate is arranged in a vertical direction, the bottom end of the support plate is connected with the inner side of the connecting main plate, and the bottom end of the first inclined support is connected with the support plate.

[0017] Preferably, the cross support assembly comprises a cross support column and a cross support cylinder, the cross support column is connected between the first ends of the two upper connecting frames, and the cross support cylinder is connected between the second ends of the two upper connecting frames.

[0018] Preferably, each traction unit further comprises a horizontal angle support, the horizontal angle support is connected between the first inclined support and the middle part of the upper connecting frame.

[0019] This application also provides a seeder, including a frame, a fertilizer box, a fertilizer discharge shaft, a fertilizer applicator, a gearbox, and a drive shaft. The fertilizer box is connected to the top of the frame, the top of the fertilizer applicator communicates with the fertilizer box, the fertilizer discharge shaft passes through and extends out of the fertilizer applicator, and both ends of the fertilizer discharge shaft are rotatably connected to the frame. The gearbox is installed in the middle of the frame, and the drive shaft passes through the gearbox. It also includes a seeder traction structure as described above. The mounting part of the seeder traction structure is connected to the middle of the frame, the gearbox is located between the two mounting parts of the seeder traction structure, the drive shaft is located above the mounting parts of the seeder traction structure, the lower connecting frame assembly of the seeder traction structure is connected to the frame, the upper connecting frame of the seeder traction structure is located below the fertilizer box, and the fertilizer discharge shaft passes through the through space of the seeder traction structure.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] This utility model provides a seeder traction structure and a seeder, including a cross brace assembly and two traction units arranged laterally opposite each other. Each traction unit includes an installation part, a connecting part, and a support part. The installation part extends longitudinally and is used to connect to the middle of the seeder frame. The connecting part includes an upper connecting frame and a lower connecting frame assembly. The support part includes a first diagonal brace and a second diagonal brace. The lower connecting frame assembly is used to connect to the frame and is located near the first end of the installation part. The bottom end of the first diagonal brace is connected to the inner side of the lower connecting frame assembly, and the top end of the first diagonal brace is connected to the first end of the upper connecting frame. The bottom end of the second diagonal brace is connected to the inner side of the second end of the installation part, and the top end of the second diagonal brace is connected to the second end of the upper connecting frame. The cross brace assembly is connected between the two upper connecting frames. The first end of the upper connecting frame and the lower connecting frame assembly are provided with traction connection holes for connecting with a tractor, and the middle of the upper connecting frame is recessed to form a through space for the fertilizer discharge shaft of the seeder to pass through. In this way, the entire traction structure is installed on the frame as a whole through the mounting part, while the support part supports the upper connecting frame to a sufficient height. Thus, the upper connecting frame and the two lower connecting frame assemblies form a triangular traction surface, ensuring that the center of gravity of the entire seeder is in a suitable position. This makes the tractor more stable when pulling the entire seeder. Furthermore, setting the upper connecting frame in a concave shape in the middle facilitates the passage of the fertilizer discharge shaft of the seeder. This eliminates the need to raise the position of the upper connecting frame, and simultaneously lowers the center of gravity and height of the fertilizer box above, preventing tipping during traction and ensuring structural safety and stability. Attached Figure Description

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative labor.

[0023] Figure 1 It is a perspective view of the traction structure in an embodiment of the present application.

[0024] Figure 2 It is a side view of the traction structure in an embodiment of the present application.

[0025] Figure 3 It is a plane view of the traction structure in an embodiment of the present application.

[0026] Figure 4 It is a perspective view of the application scene of the overall structure in an embodiment of the present application.

[0027] Figure 5 It is a perspective view of another view of the application scene of the overall structure in an embodiment of the present application.

[0028] Figure 6 It is a partial enlarged view of the application scene of the overall structure in an embodiment of the present application.

[0029] The purposes, functional features and advantages of the present application will be further illustrated in combination with embodiments and with reference to the drawings.

[0030] Explanation of the drawings:

[0031] 10, mounting part; 110, arc-shaped groove; 20, connecting part; 210, upper connecting frame; 211, through space; 212, traction connecting hole; 220, lower connecting frame assembly; 221, horizontal connecting plate; 222, connecting main plate; 223, connecting auxiliary plate; 224, abutting space; 225, clamping block; 226, supporting plate; 30, supporting part; 310, first inclined strut; 320, second inclined strut; 330, horizontal angle strut; 40, cross strut assembly; 410, cross strut column; 420, cross strut cylinder; 50, bearing seat assembly; 510, supporting angle steel; 520, U-shaped hoop; 60, seeding machine; 610, machine frame; 620, fertilizer box; 630, fertilizer discharging rotary shaft; 640, fertilizer discharger; 650, gearbox; 660, transmission shaft. DETAILED DESCRIPTION

[0032] It should be understood that the specific embodiments described herein are merely intended to explain the present application and are not intended to limit the present application.

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0035] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of those skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0036] Please refer to the drawings Figures 1-6 The present application provides a seeding machine traction structure in an embodiment, which comprises a cross brace assembly 40 and two traction units arranged opposite in the transverse direction, each of the traction units comprises a mounting portion 10, a connecting portion 20 and a supporting portion 30. First of all, it should be noted that the longitudinal direction in the present application refers to the running extension direction of the entire seeding machine 60, and the transverse direction refers to the ditch width direction of the seeding road; and unlike the traction structure for pulling by a tractor in the prior art, which usually needs to be set as a higher supporting structure form to ensure sufficient installation space in order to make other components penetrate and install, and at the same time, the frame 610 will also increase in height, but in this way, the fertilizer tank 620 installed on the top of the frame 610 will be at a higher height position, resulting in a higher center of gravity, so that the overall overturning problem is easy to occur during operation. The present application solves the above-mentioned defects in the prior art by providing a seeding machine traction structure, which is as follows:

[0037] The mounting portion 10 is longitudinally arranged and is used to connect to the middle part of the frame 610 of the seeding machine 60; the connecting portion 20 comprises an upper connecting frame 210 and a lower connecting frame assembly 220, and the supporting portion 30 comprises a first inclined strut 310 and a second inclined strut 320; wherein the lower connecting frame assembly 220 is used to connect to the frame 610 and is arranged near the first end of the mounting portion 10, the bottom end of the first inclined strut 310 is connected to the inner side of the lower connecting frame assembly 220, the top end of the first inclined strut 310 is connected to the first end of the upper connecting frame 210, the bottom end of the second inclined strut 320 is connected to the inner side of the second end of the mounting portion 10, the top end of the second inclined strut 320 is connected to the second end of the upper connecting frame 210, and the cross strut assembly 40 is connected between the two upper connecting frames 210; the first end of the upper connecting frame 210 and the lower connecting frame assembly 220 are both provided with a traction connecting hole 212 for connecting to a tractor, and the middle part of the upper connecting frame 210 is recessed to form a through space 211 for the fertilizer discharge shaft 630 of the seeding machine 60 to pass through.

[0038] Specifically, the traction structure of the seeding machine in the application comprises a cross strut assembly 40 and two traction units, the two traction units are arranged opposite to each other in the transverse direction to ensure uniform force distribution during traction, and the traction-pulling structure is stable in stress, and the cross strut assembly 40 is used to connect the two traction units, so that the two traction units are integrated; and each traction unit comprises a mounting portion 10, a connecting portion 20 and a supporting portion 30, the mounting portion 10 is used to connect the entire traction structure to the frame 610 of the seeding machine 60, so that the traction structure and the frame 610 of the seeding machine 60 are integrated, and thus the tractor can pull the entire seeding machine 60 by pulling the connecting portion 20.

[0039] The connecting part 20 comprises an upper connecting frame 210 and a lower connecting frame assembly 220, the upper connecting frame 210 and the lower connecting frame are arranged vertically staggered, so that a triangular traction surface is formed between the upper connecting frame 210 and the lower connecting frame assembly 220, and the tractor is more stable when pulling the triangular traction surface compared with pulling a point, and the stress distribution is more uniform, the lower connecting frame assembly 220 is used for being connected to the rack 610, and the upper connecting frame 210 is supported by the supporting part 30, preferably, the supporting part 30 comprises a first inclined support 310 and a second inclined support 320, the first inclined support 310 and the second inclined support 320 are used for supporting the upper connecting frame 210 from the front end and the rear end of the entire rack 610 respectively, since the lower connecting frame assembly 220 is arranged close to the first end of the mounting part 10, the bottom end of the first inclined support 310 is connected to the inner side of the lower connecting frame assembly 220, and the bottom end of the second inclined support 320 is connected to the inner side of the second end of the mounting part 10, and the top end of the first inclined support 310 and the top end of the second inclined support 320 are connected to the upper connecting frame, so that the space structure formed is more stable and the stress is uniform when being pulled; it can be understood that the connecting part 20 is used for being connected with the tractor, so that a traction connecting hole 212 is arranged on the first end of the upper connecting frame 210 and the lower connecting frame assembly 220, and the traction connecting hole 212 is used for being connected with the tractor through a connecting piece (such as a pull rod, a connecting bolt or the like).

[0040] It is worth noting that the middle part of the upper connecting frame 210 is recessed to form a through space 211, the through space 211 is used for the fertilizer discharge shaft 630 of the seeding machine 60 to penetrate, so that the installation of other components of the seeding machine 60 is not affected, and the rack 610 needs to be arranged higher to reserve sufficient internal space in the traditional seeding machine 60, so that the fertilizer tank 620 arranged on the top of the rack 610 is also arranged at a higher position, and the application ingeniously utilizes the space structure by the through space 211, without reserving a higher space of the rack 610, and the height position of the fertilizer tank 620 is also reduced, the distance between the center of gravity and the center of gravity of the entire seeding machine 60 is reduced, and the installation is more stable and does not occur overturning effect.

[0041] As a preferred embodiment of the application, the middle part of the upper connecting frame 210 is in a V-shaped opening upward.

[0042] It should be noted that the V-shaped recessed part is the through space 211, which can ensure that the through space 211 has sufficient size for other components to be installed through, and the two ends thereof are the first end and the second end of the upper connecting frame 210, respectively, for being connected with the first inclined support 310 and the second inclined support 320. This structure is convenient to process and connect.

[0043] As a preferred embodiment of the utility model, the lower connecting frame assembly 220 includes a horizontal connecting plate 221, a connecting main plate 222 and a connecting auxiliary plate 223 which are arranged in a transverse direction, the horizontal connecting plate 221 is used for being connected to the rack 610, the middle part of the connecting main plate 222 and the top part of the connecting auxiliary plate 223 are recessed to form clamping grooves matched with the horizontal connecting plate 221, the connecting main plate 222 and the connecting auxiliary plate 223 are connected to the horizontal connecting plate 221 through the clamping grooves, the bottom end of the first inclined support 310 is connected to the inner side of the connecting main plate 222, and the traction connecting hole 212 is arranged on the connecting main plate 222 and the connecting auxiliary plate 223.

[0044] It should be noted that the horizontal connecting plate 221 is used for being connected with the rack 610, and the connecting main plate 222 and the connecting auxiliary plate are used for being connected, the connecting main plate 222 is larger in size than the connecting auxiliary plate 223, the upper half part thereof is used for mounting the first inclined support 310, the lower half part thereof is used for being connected with the tractor, and the connecting auxiliary plate 223 is located in the same plane as the lower half part of the connecting main plate 222, so as to be matched with the connecting main plate 222 and connected with the tractor, therefore, the traction connecting holes 212 on the connecting main plate 222 and the connecting auxiliary plate 223 need to be arranged in a transverse direction, which means that the sizes and shapes thereof are consistent and coaxial, so as to be convenient for the tractor to be hingedly connected. In order to connect the connecting main plate 222 and the connecting auxiliary plate 223 with the horizontal connecting plate 221, the middle part of the connecting main plate 222 and the top part of the connecting auxiliary plate 223 are recessed to form clamping grooves matched with the horizontal connecting plate 221, so that the horizontal connecting plate 221 can be clamped in the clamping grooves and then connected through welding.

[0045] As a preferred embodiment of the utility model, the installation part 10 is recessed to form an arc-shaped groove 110 for the transmission shaft 660 of the seeding machine 60 to pass through.

[0046] It is worth mentioning that the transmission shaft 660 of the seeder 60 is arranged above the mounting portion 10, so that the arc-shaped groove 110 is recessed at the corresponding position on the mounting portion 10 to facilitate the transmission shaft 660 to pass through and not to affect the rotation of the transmission shaft 660, and the size of the arc-shaped groove 110 can be correspondingly arranged with the transmission shaft 660 of the seeder 60.

[0047] As a preferred embodiment of the utility model, each of the traction units further comprises a bearing seat assembly 50, the bearing seat assembly 50 comprises a supporting angle steel 510 and a U-shaped hoop 520 for the transmission shaft 660 of the seeder 60 to pass through, the supporting angle steel 510 is connected to the outside of the mounting portion 10, and the U-shaped hoop 520 is connected to the supporting angle steel 510 and correspondingly arranged at the arc-shaped groove 110.

[0048] It is worth noting that the bearing seat assembly 50 is used for the rotation connection of the transmission shaft 660 of the seeder 60 to absorb vibration and reduce vibration displacement, which adopts the combined form of the supporting angle steel 510 and the U-shaped hoop 520, the supporting angle steel 510 is used for the mounting of the U-shaped hoop 520 and is connected to the mounting portion 10, and the U-shaped hoop 520 is mounted on the supporting angle steel 510 through bolts, the opening of the U-shaped hoop 520 faces downward to form a space for the transmission shaft 660 to pass through together with the supporting angle steel 510, and in combination with the arc-shaped groove 110 on the mounting portion 10, a circular space is formed to further facilitate the transmission shaft 660 to pass through and be rotatably mounted.

[0049] Further, the connecting main plate 222 and the connecting secondary plate 223 are recessed to form a bearing space 224 matched with the rack 610, and the connecting main plate 222 and the connecting secondary plate 223 are further provided with a clamping block 225 upwardly protruding from one end away from the connecting hole.

[0050] It should be noted that the bearing space 224 is used for the remaining parts of the connecting main plate 222 and the connecting secondary plate 223 to be directly connected with the rack 610 to improve the integrity and stability of the connection in addition to the horizontal connecting plate 221, the bearing space 224 needs to be matched with the end of the rack 610, so that the end of the rack 610 can be clamped in the bearing space 224 of the connecting main plate 222 and the connecting secondary plate 223, and the clamping block 225 upwardly protruding from one end away from the connecting hole has the effect of a hook to increase the contact area during connection, and then the connection is reinforced by welding to improve the integrity of the connection.

[0051] Further, the lower connecting frame assembly 220 further comprises a support plate 226, which is vertically extended, and the bottom end of the support plate 226 is connected to the inner side of the connecting main plate 222, and the bottom end of the first inclined support 310 is connected to the support plate 226.

[0052] It should be understood that the support plate 226 is used for mounting and connecting the bottom end of the first inclined support 310, when the position of the connecting main plate 222 is not convenient for mounting and connecting the first inclined support 310, the vertically extended support plate 226 can be added to increase the vertical height, so as to facilitate the connection of the bottom end of the first inclined support 310, and the support plate 226 is connected between the first inclined support 310 and the inner side of the connecting main plate 222.

[0053] Further, the cross support assembly 40 comprises a cross support column 410 and a cross support cylinder 420, the cross support column 410 is connected between the first ends of two upper connecting frames 210, and the cross support cylinder 420 is connected between the second ends of two upper connecting frames 210.

[0054] It should be noted that the cross support column 410 is used for connecting the first ends of two upper connecting frames 210, and the cross support cylinder 420 is used for connecting the second ends of two upper connecting frames 210, so that the cross support column 410 and the cross support cylinder 420 also form a spacing distance, which is matched with the through space 211 to facilitate the through of the fertilizer discharge shaft 630.

[0055] Further, each traction unit further comprises a horizontal angle support 330, which is connected between the middle part of the first inclined support 310 and the upper connecting frame 210.

[0056] It should be noted that the horizontal angle support 330 is used to strengthen the structural horizontal strength between the first inclined support 310 and the upper connecting frame 210, and similarly, a vertical angle support can also be added to strengthen the structural strength between the mounting part 10 and the rack 610.

[0057] The application also provides a seeding machine 60, which comprises a frame 610, a fertilizer tank 620, a fertilizer discharge shaft 630, a fertilizer discharger 640, a gearbox 650 and a transmission shaft 660, the fertilizer tank 620 is connected to the top of the frame 610, the top of the fertilizer discharger 640 is communicated with the fertilizer tank 620, the fertilizer discharge shaft 630 penetrates and extends out of the fertilizer discharger 640, and both ends of the fertilizer discharge shaft 630 are rotatably connected to the frame 610, the gearbox 650 is installed in the middle of the frame 610, the transmission shaft 660 penetrates the gearbox 650, and the seeding machine traction structure is as described above, the mounting part 10 of the seeding machine traction structure is connected to the middle of the frame 610, the gearbox 650 is located between the two mounting parts 10 of the seeding machine traction structure, the transmission shaft 660 is located above the mounting part 10 of the seeding machine traction structure, the lower connecting frame assembly 220 of the seeding machine traction structure is connected to the frame 610, the upper connecting frame 210 of the seeding machine traction structure is located below the fertilizer tank 620, and the fertilizer discharge shaft 630 penetrates the penetration space 211 of the seeding machine traction structure.

[0058] It can be understood that the seeding machine 60 comprises the frame 610, the fertilizer tank 620, the fertilizer discharge shaft 630, the fertilizer discharger 640, the gearbox 650 and the transmission shaft 660, and the rest of the components, such as a furrower assembly, a rotary tiller assembly, a seeding assembly and the like, are not listed one by one, and after the whole seeding machine traction structure is installed on the frame 610, the upper connecting frame 210 is located below the fertilizer tank 620, meanwhile the fertilizer discharger 640 and the fertilizer discharge shaft 630 below the fertilizer tank 620 penetrate the penetration space 211 of the upper connecting frame 210, the installation is convenient, and the gearbox 650 is arranged between the two mounting parts 10 and located in the middle position of the whole mechanical device, after being connected with the PTO output shaft of the tractor, the tractor is connected and fixed with the connecting part 20 (the upper connecting frame 210 and the lower connecting frame assembly 220) for traction and pulling, the traction structure in this structure form only occupies a small space of the frame 610, reduces the height and gravity center of the fertilizer tank 620, and enhances the stability.

[0059] The preferred embodiments of the application are described above, and the patent range of the application is not limited by this, and any equivalent structure or equivalent process transformation according to the content of the specification and drawings of the application, or direct or indirect application in other related technical fields, are also included in the patent protection range of the application.

Claims

1. A seeder traction structure, characterized in that, It includes a cross brace assembly and two traction units arranged laterally opposite each other, each traction unit including a mounting part, a connecting part, and a supporting part; wherein, The mounting part extends longitudinally and is used to connect to the middle of the frame of the seeder; The connecting part includes an upper connecting frame and a lower connecting frame assembly, and the supporting part includes a first diagonal brace and a second diagonal brace; wherein... The lower connecting frame assembly is used to connect to the frame and is disposed near the first end of the mounting part. The bottom end of the first diagonal brace is connected to the inner side of the lower connecting frame assembly, the top end of the first diagonal brace is connected to the first end of the upper connecting frame, the bottom end of the second diagonal brace is connected to the inner side of the second end of the mounting part, the top end of the second diagonal brace is connected to the second end of the upper connecting frame, and the cross brace assembly is connected between the two upper connecting frames. Both the first end of the upper connecting frame and the lower connecting frame assembly are provided with traction connection holes for connecting with a tractor, and the middle of the upper connecting frame is recessed to form a through space for the fertilizer discharge shaft of the seeder to pass through.

2. The seeder traction structure according to claim 1, characterized in that, The middle part of the upper connecting frame is V-shaped with the opening facing upwards.

3. The seeder traction structure according to claim 1, characterized in that, The lower connecting frame assembly includes a horizontal connecting plate, a connecting main plate and a connecting sub-plate arranged at horizontal intervals. The horizontal connecting plate is used to connect to the frame. The middle part of the connecting main plate and the top of the connecting sub-plate are recessed to form a slot that matches the horizontal connecting plate. The connecting main plate and the connecting sub-plate are both connected to the horizontal connecting plate through the slot. The bottom end of the first diagonal brace is connected to the inner side of the connecting main plate, and the connecting main plate and the connecting sub-plate are both provided with the traction connection hole.

4. The seeder traction structure according to claim 1, characterized in that, The mounting section has a recessed arc-shaped groove for the drive shaft of the seeder to pass through.

5. The seeder traction structure according to claim 4, characterized in that, Each of the traction units also includes a bearing housing assembly, which includes a supporting angle steel and a U-shaped clamp for the drive shaft of the seeder to pass through. The supporting angle steel is connected to the outside of the mounting part, and the U-shaped clamp is connected to the supporting angle steel and correspondingly disposed at the arc-shaped groove.

6. The seeder traction structure according to claim 3, characterized in that, Both the main board and the sub-board are recessed to form a support space that matches the rack, and both the main board and the sub-board have a locking block protruding upwards at the end away from the connection hole.

7. The seeder traction structure according to claim 3, characterized in that, The lower connecting frame assembly also includes a support plate, which extends vertically and has its bottom end connected to the inner side of the connecting main board. The bottom end of the first diagonal brace is connected to the support plate.

8. The seeder traction structure according to claim 1, characterized in that, The cross bracing assembly includes a cross bracing column and a cross bracing cylinder. The cross bracing column is connected between the first ends of the two upper connecting frames, and the cross bracing cylinder is connected between the second ends of the two upper connecting frames.

9. The seeder traction structure according to claim 1, characterized in that, Each of the traction units also includes a horizontal brace connected between the first diagonal brace and the middle of the upper connecting frame.

10. A seeder, comprising a frame, a fertilizer box, a fertilizer discharge shaft, a fertilizer applicator, a gearbox, and a drive shaft, wherein the fertilizer box is connected to the top of the frame, the top of the fertilizer applicator communicates with the fertilizer box, the fertilizer discharge shaft passes through and extends out of the fertilizer applicator, and both ends of the fertilizer discharge shaft are rotatably connected to the frame, the gearbox is mounted in the middle of the frame, and the drive shaft passes through the gearbox, characterized in that... It also includes a seeder traction structure as described in any one of claims 1-9, wherein the mounting part of the seeder traction structure is connected to the middle of the frame, the gearbox is located between the two mounting parts of the seeder traction structure, the drive shaft is located above the mounting part of the seeder traction structure, the lower connecting frame assembly of the seeder traction structure is connected to the frame, the upper connecting frame of the seeder traction structure is located below the fertilizer box, and the fertilizer discharge shaft passes through the through space of the seeder traction structure.

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