Traction device and bundling machine

Abstract

The utility model provides a traction device and a bundling machine. The traction device comprises a traction input shaft, a hitching plate assembly, a front traction connecting frame welding part, a traction middle shaft, a rear traction connecting frame welding part, a traction output shaft, a pair of traction beams and a limiting mechanism, the traction input shaft is connected with the traction middle shaft, the traction middle shaft is connected with the traction output shaft, and the traction output shaft is connected with the hitching plate assembly. The hitching plate assembly is installed on the front traction connecting frame welding part, the front traction connecting frame welding part is rotationally connected with the rear traction connecting frame welding part, and the traction middle shaft is rotationally installed in the front traction connecting frame welding part and the rear traction connecting frame welding part. The pair of traction beams is connected with the rear traction connecting frame welding part, and the limiting mechanism is installed at the connecting position of the front traction connecting frame welding part and the rear traction connecting frame welding part.

Description

Technical Field

[0001] The utility model relates to the technical field of tractor traction equipment, in particular to a traction device and a baler. Background Art

[0002] With the development of economy, animal husbandry has developed rapidly, and the demand for forage has increased day by day. Natural forage can no longer meet the needs of animal husbandry development. Therefore, corn straw and wheat straw have gradually become forage for animal husbandry in some areas. Mechanized forage harvesting technology has very mature experience, and there are many types of harvesting machinery. The most commonly used mechanized harvesting equipment is square grass baler and round grass baler.

[0003] Traditional balers are directly connected to tractors through traction beams for operation, with a turning range of 0 to 90°. When the tractor pulls the working tool to turn, the unit composed of the tractor and the towed tool has a large traction rotation angle, but the drive shaft itself cannot withstand the bending moment caused by the large turning angle. If the machine is to turn synchronously when picking up, the machine can only move within the range of 0 to 40° due to excessive stress on the drive shaft. If the ground is undulating, the machine rotation range will be smaller, and since there is no limit device, the operator often cannot control this range. The drive shaft is very easy to be damaged by impact, and due to the small turning angle, it is easy to cause a dead angle for picking up, which brings difficulties to small plots of land, thereby reducing the operating efficiency. At the same time, when the turning angle of the traditional single-section drive shaft is too large, the transmission vibration is large, the universal joint bearing is easily damaged, the drive shaft tube is easily bent and damaged, and when the ground is undulating and the ground conditions are poor, the impact on the drive shaft is extremely large, and the drive shaft is difficult to reach its service life. In most areas, small plots are the main land with complex ground conditions, and traditional transmission traction devices are difficult to adapt to ground conditions.

[0004] The existing baler traction device has two modes: single-section transmission and double-section transmission.

[0005] 1. When the baler returns to continue working on the adjacent row after completing one row of work, the turning angle of the traction beam is relatively small, resulting in a relatively large turning radius of the unit. On the one hand, it is easy to cause dead corners for picking up, and on the other hand, it brings difficulties to work on small plots, thereby reducing work efficiency.

[0006] 2. When the turning angle is too large, the drive shaft is prone to bending stress, causing severe vibrations, the universal joint bearings, and the drive shaft tube to bend and be damaged.

[0007] 3. When working in complex terrain conditions, the transmission shaft is easily subjected to impact loads, and the service life of the transmission shaft is drastically reduced. Utility Model Content

[0008] The technical problem to be solved by the utility model is to provide a traction device and a baling machine in view of the deficiencies in the prior art.

[0009] The utility model solves the above-mentioned technical problem with the following technical solution: a traction device, comprising: a traction input shaft, a coupling plate assembly, a front traction connection frame weld, a traction intermediate shaft, a rear traction connection frame weld, a traction output shaft, a pair of traction beams and a limiting mechanism, wherein the traction input shaft is connected to the traction intermediate shaft, the traction intermediate shaft is connected to the traction output shaft, the coupling plate assembly is installed on the front traction connection frame weld, the front traction connection frame weld is rotatably connected to the rear traction connection frame weld, the traction intermediate shaft is rotatably installed in the front traction connection frame weld and the rear traction connection frame weld, a pair of traction beams are connected to the rear traction connection frame weld, and the limiting mechanism is installed at the connection position of the front traction connection frame weld and the rear traction connection frame weld.

[0010] The beneficial effects of the technical solution of the utility model are: a set of turning devices is installed on the traction frame, which effectively reduces the turning radius of the baler and other towed machines, avoids the difficulties caused by the turning of the machine, saves operation time, improves operation efficiency, reduces operation dead angles, improves the obstacle crossing ability of the machine, and increases the service life of the transmission shaft. The welding of the front traction connecting frame and the welding of the rear traction connecting frame can completely protect the transmission shaft therein, and the traction beam can protect the transmission shaft inside, which can avoid the transmission shaft from being subjected to impact, vibration and other problems. When the ground is undulating, the traction beam completely bears the impact load, further improves the obstacle crossing ability of the machine, and further increases the service life of the transmission shaft. When turning, the transmission shaft can be prevented from being subjected to bending stress and reducing its service life. The limit mechanism on the welding of the traction connecting frame can protect the transmission shaft from being overloaded and damaged due to exceeding the turning limit. The power of the tractor is transmitted through the traction input shaft, the traction intermediate shaft and the traction output shaft, thereby realizing the operation of the baler. The split traction beam and three-section drive shaft are used to transmit power, which can achieve small radius turning, adapt to frequent U-turn operations on small plots, and have better obstacle-crossing performance, which can adapt to back-and-forth operations on uneven plots. When hydraulically lifting, it can effectively protect the drive shaft from interfering with the traction frame.

[0011] Furthermore, the coupling plate assembly is welded and connected to the front traction connecting frame via a first connecting pin, and the coupling plate assembly is connected to the rear suspension of the tractor via a second connecting pin.

[0012] The beneficial effect of adopting the above further technical solution is that the hitch plate assembly is welded and connected to the front traction connecting frame through the first connecting pin, and the tractor rear suspension is connected to the hitch plate assembly through the second connecting pin, so as to realize the function of traction baler. It is convenient to weld the hitch plate assembly and the front traction connecting frame and quickly connect the tractor rear suspension, thereby improving stability and reliability.

[0013] Furthermore, the mounting plate assembly includes: a connecting pin sleeve, a mounting cross beam, a mounting plate I, a mounting plate II and a mounting plate sleeve, a first mounting hole is provided in the middle of the mounting cross beam, the connecting pin sleeve is installed in the first mounting hole, the first connecting pin is installed in the connecting pin sleeve, the mounting plate I and the mounting plate II are installed at both ends of the mounting cross beam, a second mounting hole is provided on the mounting plate I and the mounting plate II, the mounting plate sleeve is installed in the second mounting hole, and the second connecting pin is installed in the mounting plate sleeve.

[0014] The beneficial effect of adopting the above further technical solution is: a hole is opened in the middle of the hooking crossbeam and connected to the connecting pin sleeve, so that the first connecting pin is welded to the front traction connecting frame through the connecting pin sleeve. The hooking plate I and the hooking plate II are connected to the tractor rear suspension through the second connecting pin and the hooking plate sleeve.

[0015] Furthermore, the traction input shaft is connected to the traction intermediate shaft through a first deep groove ball bearing, and the traction intermediate shaft is connected to the traction output shaft through a second deep groove ball bearing; the front traction connecting frame is welded and rotatably connected to the rear traction connecting frame through an angular contact ball bearing.

[0016] The beneficial effects of adopting the above further technical solution are: the first deep groove ball bearing and the second deep groove ball bearing ensure the normal insertion of the traction input shaft and the traction intermediate shaft. The front traction connecting frame weld is connected with the rear traction connecting frame weld by rotatable components such as angular contact ball bearings, ensuring that the front traction connecting frame weld can swing back and forth. The front and rear connecting frame welds can be connected by rotatable components such as bearings, reducing the bending stress during turning and better protecting the transmission shaft.

[0017] Furthermore, the front traction connecting frame welding includes: a left front side plate, a right front side plate, a front upper plate, a front lower plate, a first bearing seat plate, a front vertical plate and a vertical plate connecting plate, the first bearing seat plate is installed between the front upper plate and the front lower plate, the first deep groove ball bearing is installed in the first bearing seat plate, the front vertical plate, the vertical plate connecting plate, the front upper plate and the front lower plate are all connected to the left front side plate and the right front side plate, the left front side plate and the right front side plate are both provided with notches for installing a hanging plate assembly, the front vertical plate is provided with a connecting hole for connecting the hanging plate assembly, and the size of the notch is larger than the size of the hanging beam of the hanging plate assembly.

[0018] The beneficial effects of adopting the above further technical solution are: the first bearing seat plate is welded between the front upper plate and the front lower plate to ensure that the traction input shaft penetrates. Slots are opened on the left front side plate and the right front side plate to ensure that the hook beam in the hook plate assembly penetrates. A hole is opened on the front vertical plate, and the front traction connecting frame is welded and connected to the hook plate assembly through the first connecting pin. The size of the slot on the right front side plate is larger than the specification of the hook beam, ensuring that the hook plate assembly can float up and down through the first connecting pin, thereby alleviating the impact force from the ground on the hook plate assembly.

[0019] Furthermore, the rear traction connecting frame is welded to include: a left rear side plate, a right rear side plate, a rear upper plate, a rear lower plate, and a second bearing seat plate, the second bearing seat plate is installed between the rear upper plate and the rear lower plate, the second deep groove ball bearing is installed in the second bearing seat plate, and the second bearing seat plate, the rear upper plate, and the rear lower plate are all connected to the left rear side plate and the right rear side plate.

[0020] The beneficial effect of adopting the above further technical solution is that the second bearing seat plate is welded between the rear upper plate and the rear lower plate to ensure that the traction intermediate shaft passes through. The structural design of the rear traction connecting frame is welded, the structure is compact, and the load strength is improved.

[0021] Further, the limiting mechanism includes: a left front limiting bracket, a right front limiting bracket, a left rear limiting bracket, and a right rear limiting bracket. The left front limiting bracket and the right front limiting bracket are respectively installed on both sides of the welding of the front traction connecting frame, and the left rear limiting bracket and the right rear limiting bracket are respectively installed on both sides of the welding of the rear traction connecting frame. The position of the left front limiting bracket corresponds to that of the left rear limiting bracket, and the position of the right front limiting bracket corresponds to that of the right rear limiting bracket. The left front limiting bracket, the right front limiting bracket, the left rear limiting bracket and the right rear limiting bracket are all provided with abutment surfaces.

[0022] The beneficial effect of adopting the above further technical solution is that the turning limit bracket on the traction connection frame weld can protect the transmission shaft from overload damage due to exceeding the turning limit. Due to the limit bracket limiting its position, the front traction connection frame weld can be rotated between -40° and 40°, realizing a small radius turn, effectively reducing the turning radius of the baler. The front traction connection frame weld and the rear traction connection frame weld can completely protect the transmission shaft therein. When the turning reaches the limit state, the limit bracket on the front traction connection frame weld and the rear traction connection frame weld is in surface contact, and the surface contact is uniformly stressed, which can reduce the contact surface pressure, avoid stress concentration, and increase the overload limit. The box connection method can evenly transfer the steering stress to the front and rear traction connection frame welds, so that the overall force is applied, ensuring that the transmission shaft and the universal joint assembly will not exceed the turning limit and avoid bearing the impact load caused by turning, which can ensure that the baler can achieve a small radius turn, effectively reducing the turning radius of the baler. At the same time, when the tractor is hydraulically lifted, it can effectively protect the transmission shaft from interfering with the traction frame.

[0023] Furthermore, one end of the traction beam is welded to the rear traction connecting frame, and the other end of the traction beam is connected to a traction beam mounting plate for connecting to a baler.

[0024] The beneficial effects of adopting the above further technical solution are: the traction beam can protect the transmission shaft, and when the ground is undulating, the traction beam can fully bear the impact load, thereby improving the obstacle crossing ability of the machine and increasing the service life of the transmission shaft. The setting of the traction beam mounting plate facilitates the stable connection between the traction device and the baler, and improves the stability and reliability of the traction device.

[0025] Furthermore, a universal joint assembly is provided in the middle portion of the traction intermediate shaft.

[0026] The beneficial effect of adopting the above further technical solution is that it is easy to adapt to the rotation between the front traction connecting frame welding and the rear traction connecting frame welding, and prevents jamming.

[0027] In addition, the utility model also provides a baler, comprising a traction device as described in any one of the above items.

[0028] The beneficial effects of the technical solution of the utility model are: a set of turning devices is installed on the traction frame, which effectively reduces the turning radius of the baler and other towed machines, avoids the difficulties caused by the turning of the machine, saves operation time, improves operation efficiency, reduces operation dead angles, improves the obstacle crossing ability of the machine, and increases the service life of the transmission shaft. The welding of the front traction connecting frame and the welding of the rear traction connecting frame can completely protect the transmission shaft therein, and the traction beam can protect the transmission shaft inside, which can avoid the transmission shaft from being subjected to impact, vibration and other problems. When the ground is undulating, the traction beam completely bears the impact load, further improves the obstacle crossing ability of the machine, and further increases the service life of the transmission shaft. When turning, the transmission shaft can be prevented from being subjected to bending stress and reducing its service life. The limit mechanism on the welding of the traction connecting frame can protect the transmission shaft from being overloaded and damaged due to exceeding the turning limit. The power of the tractor is transmitted through the traction input shaft, the traction intermediate shaft and the traction output shaft, thereby realizing the operation of the baler. The split traction beam and three-section drive shaft are used to transmit power, which can achieve small radius turning, adapt to frequent U-turn operations on small plots, and have better obstacle-crossing performance, which can adapt to back-and-forth operations on uneven plots. When hydraulically lifting, it can effectively protect the drive shaft from interfering with the traction frame.

[0029] Advantages of additional aspects of the present invention will be partially given in the following description, and partially become apparent from the following description, or be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic structural diagram of a traction device provided in an embodiment of the utility model.

[0031] Figure 2 A schematic structural diagram of a mounting plate assembly provided in an embodiment of the utility model.

[0032] Figure 3 A schematic structural diagram of the welded front traction connecting frame provided in an embodiment of the utility model.

[0033] Figure 4 A schematic diagram of the welded structure of the rear traction connecting frame provided in an embodiment of the utility model.

[0034] Description of the accompanying figures: 1. Traction input shaft; 2. Mounting plate assembly; 3. Front traction connecting frame welding; 4. Traction intermediate shaft; 5. Rear traction connecting frame welding; 6. Traction output shaft; 7. Traction beam; 8. Traction beam mounting plate; 9. Angular contact ball bearing; 10. First deep groove ball bearing; 11. First connecting pin shaft; 12. Second connecting pin shaft; 22. Connecting pin shaft sleeve; 23. Mounting cross beam; 24. Mounting plate I; 25. Mounting plate II; 26. Mounting plate sleeve; 31. Left front side plate; 32. Right front side plate; 33. Front upper plate; 34. Front lower plate; 35. First bearing seat plate; 36. Left front limit bracket; 38. Front vertical plate; 39. Vertical plate connecting plate; 51. Left rear side plate; 52. Right rear side plate; 53. Rear upper plate; 54. Rear lower plate; 55. Second bearing seat plate; 56. Left rear limit bracket; 57. Right rear limit bracket. DETAILED DESCRIPTION

[0035] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The embodiments given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0036] like Figures 1 to 4 As shown, an embodiment of the utility model provides a traction device, including: a traction input shaft 1, a coupling plate assembly 2, a front traction connecting frame weld 3, a traction intermediate shaft 4, a rear traction connecting frame weld 5, a traction output shaft 6, a pair of traction beams 7 and a limiting mechanism, the traction input shaft 1 is connected to the traction intermediate shaft 4, the traction intermediate shaft 4 is connected to the traction output shaft 6, the coupling plate assembly 2 is installed on the front traction connecting frame weld 3, the front traction connecting frame weld 3 is rotatably connected to the rear traction connecting frame weld 5, the traction intermediate shaft 4 is rotatably installed in the front traction connecting frame weld 3 and the rear traction connecting frame weld 5, a pair of traction beams 7 is connected to the rear traction connecting frame weld 5, and the limiting mechanism is installed at the connection position of the front traction connecting frame weld 3 and the rear traction connecting frame weld 5.

[0037] The beneficial effects of the technical solution of the utility model are: a set of turning devices is installed on the traction frame, which effectively reduces the turning radius of the baler and other towed machines, avoids the difficulties caused by the turning of the machine, saves operation time, improves operation efficiency, reduces operation dead angles, improves the obstacle crossing ability of the machine, and increases the service life of the transmission shaft. The welding of the front traction connecting frame and the welding of the rear traction connecting frame can completely protect the transmission shaft therein, and the traction beam can protect the transmission shaft inside, which can avoid the transmission shaft from being subjected to impact, vibration and other problems. When the ground is undulating, the traction beam completely bears the impact load, further improves the obstacle crossing ability of the machine, and further increases the service life of the transmission shaft. When turning, the transmission shaft can be prevented from being subjected to bending stress and reducing its service life. The limit mechanism on the welding of the traction connecting frame can protect the transmission shaft from being overloaded and damaged due to exceeding the turning limit. The power of the tractor is transmitted through the traction input shaft, the traction intermediate shaft and the traction output shaft, thereby realizing the operation of the baler. The split traction beam and three-section drive shaft are used to transmit power, which can achieve small radius turning, adapt to frequent U-turn operations on small plots, and have better obstacle-crossing performance, which can adapt to back-and-forth operations on uneven plots. When hydraulically lifting, it can effectively protect the drive shaft from interfering with the traction frame.

[0038] The traction device provided in the embodiment of the utility model is a turning device installed on the traction frame, which effectively reduces the turning radius of the towed equipment such as the baler, avoids the difficulties caused by the turning of the machine, saves operation time, improves operation efficiency, reduces operation blind spots, improves the obstacle crossing ability of the equipment, and increases the service life of the transmission shaft.

[0039] The turning mechanism in the transmission turning mechanism can ensure that the turning range of the machine under picking conditions is increased to 0-80°, thereby effectively reducing the turning radius of the baler and other towed machines, avoiding the difficulties caused by machine turning, saving operation time, improving operation efficiency, and reducing operation blind spots.

[0040] The front and rear segmented structure is adopted to reduce the turning radius of the baler, avoid the difficulties caused by the turning of the machine, save operation time, improve operation efficiency, and reduce operation blind spots.

[0041] The traction beam 7 can protect the transmission shaft. When the ground is undulating, the traction beam 7 can fully bear the impact load, thereby improving the obstacle-crossing capability of the machine and increasing the service life of the transmission shaft.

[0042] The turning limit brackets (left front limit bracket, right front limit bracket, left rear limit bracket, right rear limit bracket) on the traction connecting frame weld (front traction connecting frame weld and rear traction connecting frame weld) can protect the drive shaft (traction input shaft, traction intermediate shaft, traction output shaft) from overload damage due to exceeding the turning limit.

[0043] like Figures 1 to 4 As shown, further, the coupling plate assembly 2 is welded and connected to the front traction connecting frame 3 through a first connecting pin shaft 11, and the coupling plate assembly 2 is connected to the tractor rear suspension through a second connecting pin shaft 12.

[0044] The beneficial effect of adopting the above further technical solution is that the hitch plate assembly is welded and connected to the front traction connecting frame through the first connecting pin, and the tractor rear suspension is connected to the hitch plate assembly through the second connecting pin, so as to realize the function of traction baler. It is convenient to weld the hitch plate assembly and the front traction connecting frame and quickly connect the tractor rear suspension, thereby improving stability and reliability.

[0045] like Figures 1 to 4 As shown, further, the hanging plate assembly 2 includes: a connecting pin sleeve 22, a hanging beam 23, a hanging plate I 24, a hanging plate II 25 and a hanging plate sleeve 26, a first mounting hole is provided in the middle of the hanging beam 23, the connecting pin sleeve 22 is installed in the first mounting hole, the first connecting pin 11 is installed in the connecting pin sleeve 22, the hanging plate I 24 and the hanging plate II 25 are installed at both ends of the hanging beam 23, the hanging plate I 24 and the hanging plate II 25 are provided with a second mounting hole, the hanging plate sleeve 26 is installed in the second mounting hole, and the second connecting pin 12 is installed in the hanging plate sleeve 26.

[0046] The beneficial effect of adopting the above further technical solution is: a hole is opened in the middle of the hooking crossbeam and connected to the connecting pin sleeve, so that the first connecting pin is welded to the front traction connecting frame through the connecting pin sleeve. The hooking plate I and the hooking plate II are connected to the tractor rear suspension through the second connecting pin and the hooking plate sleeve.

[0047] like Figures 1 to 4 As shown, further, the traction input shaft 1 is connected to the traction intermediate shaft 4 through a first deep groove ball bearing 10, and the traction intermediate shaft 4 is connected to the traction output shaft 6 through a second deep groove ball bearing; the front traction connecting frame weld 3 is rotatably connected to the rear traction connecting frame weld 5 through an angular contact ball bearing 9.

[0048] The beneficial effects of adopting the above further technical solution are: the first deep groove ball bearing and the second deep groove ball bearing ensure the normal insertion of the traction input shaft and the traction intermediate shaft. The front traction connecting frame weld is connected with the rear traction connecting frame weld by rotatable components such as angular contact ball bearings, ensuring that the front traction connecting frame weld can swing back and forth. The front and rear connecting frame welds can be connected by rotatable components such as bearings, reducing the bending stress during turning and better protecting the transmission shaft.

[0049] like Figures 1 to 4As shown, further, the front traction connecting frame weld 3 includes: a left front side plate 31, a right front side plate 32, a front upper plate 33, a front lower plate 34, a first bearing seat plate 35, a front vertical plate 38 and a vertical plate connecting plate 39, the first bearing seat plate 35 is installed between the front upper plate 33 and the front lower plate 34, the first deep groove ball bearing 10 is installed in the first bearing seat plate 35, the front vertical plate 38, the vertical plate connecting plate 39, the front upper plate 33 and the front lower plate 34 are all connected to the left front side plate 31 and the right front side plate 32, the left front side plate 31 and the right front side plate 32 are provided with notches for installing the hanging plate assembly 2, the front vertical plate 38 is provided with a connecting hole for connecting the hanging plate assembly 2, the size of the notch is larger than the size of the hanging beam 23 of the hanging plate assembly 2.

[0050] The beneficial effects of adopting the above further technical solution are: the first bearing seat plate is welded between the front upper plate and the front lower plate to ensure that the traction input shaft penetrates. Slots are opened on the left front side plate and the right front side plate to ensure that the hook beam in the hook plate assembly penetrates. A hole is opened on the front vertical plate, and the front traction connecting frame is welded and connected to the hook plate assembly through the first connecting pin. The size of the slot on the right front side plate is larger than the specification of the hook beam, ensuring that the hook plate assembly can float up and down through the first connecting pin, thereby alleviating the impact force from the ground on the hook plate assembly.

[0051] like Figures 1 to 4 As shown, further, the rear traction connecting frame weld 5 includes: a left rear side plate 51, a right rear side plate 52, a rear upper plate 53, a rear lower plate 54, and a second bearing seat plate 55, the second bearing seat plate 55 is installed between the rear upper plate 53 and the rear lower plate 54, the second deep groove ball bearing is installed in the second bearing seat plate 55, and the second bearing seat plate 55, the rear upper plate 53, and the rear lower plate 54 are all connected to the left rear side plate 51 and the right rear side plate 52.

[0052] The beneficial effect of adopting the above further technical solution is that the second bearing seat plate is welded between the rear upper plate and the rear lower plate to ensure that the traction intermediate shaft passes through. The structural design of the rear traction connecting frame is welded, the structure is compact, and the load strength is improved.

[0053] like Figures 1 to 4As shown, further, the limiting mechanism includes: a left front limiting bracket 36, a right front limiting bracket, a left rear limiting bracket 56, and a right rear limiting bracket 57. The left front limiting bracket 36 and the right front limiting bracket are respectively installed on both sides of the front traction connecting frame weld 3, and the left rear limiting bracket 56 and the right rear limiting bracket 57 are respectively installed on both sides of the rear traction connecting frame weld 5. The left front limiting bracket 36 corresponds to the position of the left rear limiting bracket 56, and the right front limiting bracket corresponds to the position of the right rear limiting bracket 57. The left front limiting bracket 36, the right front limiting bracket, the left rear limiting bracket 56 and the right rear limiting bracket 57 are all provided with abutment surfaces.

[0054] The beneficial effect of adopting the above further technical solution is that the turning limit bracket on the traction connection frame weld can protect the transmission shaft from overload damage due to exceeding the turning limit. Due to the limit bracket limiting its position, the front traction connection frame weld can be rotated between -40° and 40°, realizing a small radius turn, effectively reducing the turning radius of the baler. The front traction connection frame weld and the rear traction connection frame weld can completely protect the transmission shaft therein. When the turning reaches the limit state, the limit bracket on the front traction connection frame weld and the rear traction connection frame weld is in surface contact, and the surface contact is uniformly stressed, which can reduce the contact surface pressure, avoid stress concentration, and increase the overload limit. The box connection method can evenly transfer the steering stress to the front and rear traction connection frame welds, so that the overall force is applied, ensuring that the transmission shaft and the universal joint assembly will not exceed the turning limit and avoid bearing the impact load caused by turning, which can ensure that the baler can achieve a small radius turn, effectively reducing the turning radius of the baler. At the same time, when the tractor is hydraulically lifted, it can effectively protect the transmission shaft from interfering with the traction frame.

[0055] like Figures 1 to 4 As shown, further, one end of the traction beam 7 is welded and connected to the rear traction connecting frame 5, and the other end of the traction beam 7 is connected to a traction beam mounting plate 8 for connecting to a baler.

[0056] The beneficial effects of adopting the above further technical solution are: the traction beam can protect the transmission shaft, and when the ground is undulating, the traction beam can fully bear the impact load, thereby improving the obstacle crossing ability of the machine and increasing the service life of the transmission shaft. The setting of the traction beam mounting plate facilitates the stable connection between the traction device and the baler, and improves the stability and reliability of the traction device.

[0057] like Figure 1 As shown, further, a universal joint assembly is provided in the middle portion of the traction intermediate shaft 4.

[0058] The beneficial effect of adopting the above further technical solution is that it is easy to adapt to the rotation between the front traction connecting frame welding and the rear traction connecting frame welding, and prevents jamming.

[0059] The traction device provided by the embodiment of the utility model can be a driving turning mechanism of a traction baler, including a traction input shaft 1, a coupling plate assembly 2, a front traction connecting frame weld 3, a traction intermediate shaft 4, a rear traction connecting frame weld 5, a traction output shaft 6, a traction beam 7, a traction beam mounting plate 8, an angular contact ball bearing 9, a first deep groove ball bearing 10 and a first connecting pin 11. The rear suspension of the tractor is connected to the coupling plate assembly 2 through the second connecting pin 12 to realize the function of traction baler, the coupling plate assembly 2 is connected to the front traction connecting frame weld 3 through the first connecting pin 11, the traction input shaft 1 is connected to the traction intermediate shaft 4 through the first deep groove ball bearing 10, the front traction connecting frame weld 3 is connected to the rear traction connecting frame weld 5 through the angular contact ball bearing 9, the two ends of the traction beam 7 are respectively welded to the rear traction connecting frame weld 5 and the traction beam mounting plate 8, the traction beam mounting plate 8 is installed on the baler by bolts, and the traction output shaft 6 is connected to the traction intermediate shaft 4 through the second deep groove ball bearing. The power of the tractor is transmitted through the traction input shaft 1, the traction intermediate shaft 4 and the traction output shaft 6, thereby realizing the operation of the baler.

[0060] like Figure 2 As shown, the coupling plate assembly 2 includes a connecting pin sleeve 22, a coupling cross beam 23, a coupling plate I 24, a coupling plate II 25, and a coupling plate sleeve 26. A hole is opened in the middle of the coupling cross beam 23, and a connecting pin sleeve 22 is welded to realize the connection of the first connecting pin 11 with the front traction connecting frame weld 3 through the connecting pin sleeve 22, and a coupling plate I 24 and a coupling plate II 25 are welded at both ends of the coupling cross beam 23, and the coupling plate I 24 and the coupling plate II 25 are connected to the tractor rear suspension through the second connecting pin 12 and the coupling plate sleeve 26.

[0061] like Figure 3 As shown, the front traction connecting frame weld 3 includes a left front side plate 31, a right front side plate 32, a front upper plate 33, a front lower plate 34, a first bearing seat plate 35, a left front limit bracket 36, a right front limit bracket, a front vertical plate 38 and a vertical plate connecting plate 39. The first bearing seat plate 35 is welded between the front upper plate 33 and the front lower plate 34 to ensure that the traction input shaft 1 penetrates; slots are opened on the left front side plate 31 and the right front side plate 32 to ensure that the hanging crossbeam 23 in the hanging plate assembly 2 penetrates; a hole is opened on the front vertical plate 38, and the front traction connecting frame weld 3 is connected to the hanging plate assembly 2 through the first connecting pin shaft 11. The size of the slots on the left front side plate 31 and the right front side plate 32 should be larger than the specification of the hanging crossbeam 23, so that the hanging plate assembly 2 can float up and down through the first connecting pin shaft 11, thereby alleviating the impact force from the ground on the hanging plate assembly.

[0062] like Figure 4As shown, the rear traction connecting frame weld 5 includes a left rear side plate 51, a right rear side plate 52, a rear upper plate 53, a rear lower plate 54, a second bearing seat plate 55, a left rear limit bracket 56, and a right rear limit bracket 57. The second bearing seat plate 55 is welded between the rear upper plate 53 and the rear lower plate 54 to ensure that the traction intermediate shaft 4 passes through.

[0063] The holes in the first bearing seat plate 35 in the front traction connection frame weld 3 and the second bearing seat plate 55 in the rear traction connection frame weld 5 must ensure concentricity, and the first deep groove ball bearing 10 and the second deep groove ball bearing ensure the normal insertion of the traction input shaft 1 and the traction intermediate shaft 4. The front traction connection frame weld 3 and the rear traction connection frame weld 5 are connected by rotatable components such as angular contact ball bearings 9 to ensure that the front traction connection frame weld 3 can swing back and forth. Due to the limitation of the left front limit bracket 36, the right front limit bracket, the left rear limit bracket 56, and the right rear limit bracket 57, the front traction connection frame weld 3 can be rotated between -40° and 40°, realizing a small radius turn, which effectively reduces the turning radius of the baler.

[0064] The front traction connection frame weld 3 and the rear traction connection frame weld 5 can completely protect the transmission shaft therein. When the turning reaches the limit state, the left front limit bracket 36 and the right front limit bracket on the front traction connection frame weld 3 and the left rear limit bracket 56 and the right rear limit bracket 57 on the rear traction connection frame weld 5 are in surface contact. The surface contact is subjected to uniform force, which can reduce the contact surface pressure, avoid stress concentration, and increase the overload limit. The box connection method can evenly transfer the steering stress to the front and rear traction connection frame welds, so that they are subjected to overall force, ensuring that the transmission shaft and the universal joint assembly will not exceed the turning limit and avoid bearing the impact load caused by turning, which can ensure that the baler can achieve a small radius turn and effectively reduce the turning radius of the baler. At the same time, when the tractor is hydraulically lifted, it can effectively protect the transmission shaft from interfering with the traction frame.

[0065] When the ground is undulating, due to its integrity, the traction module and the drive shaft can float at the same time, avoiding rigid impact on the drive shaft. When the lifting height of the picker cannot meet the actual needs, it is often necessary to lift the machine itself to meet the operation, which can avoid collision between the drive shaft and the traction device.

[0066] The split traction beam and three-section drive shaft are used to transmit power, which can achieve small radius turning and adapt to frequent U-turn operations on small plots. It has better obstacle crossing performance and can adapt to back and forth operations on uneven plots.

[0067] When the tractor is hydraulically lifted, it can effectively protect the transmission shaft from interfering with the drawbar.

[0068] The entire drive shaft is protected by the traction beam, which can prevent the drive shaft from being subjected to impact, vibration and other problems. When turning, the drive shaft can be prevented from being subjected to bending stress and reducing its service life.

[0069] The front and rear connecting frames can be welded and connected through rotatable parts such as bearings, which can reduce the bending stress during cornering and better protect the transmission shaft.

[0070] It has the characteristics of stable performance, flexibility, safety and reliability.

[0071] In addition, the utility model also provides a baler, comprising a traction device as described in any one of the above items.

[0072] The beneficial effects of the technical solution of the utility model are: a set of turning devices is installed on the traction frame, which effectively reduces the turning radius of the baler and other towed machines, avoids the difficulties caused by the turning of the machine, saves operation time, improves operation efficiency, reduces operation dead angles, improves the obstacle crossing ability of the machine, and increases the service life of the transmission shaft. The welding of the front traction connecting frame and the welding of the rear traction connecting frame can completely protect the transmission shaft therein, and the traction beam can protect the transmission shaft inside, which can avoid the transmission shaft from being subjected to impact, vibration and other problems. When the ground is undulating, the traction beam completely bears the impact load, further improves the obstacle crossing ability of the machine, and further increases the service life of the transmission shaft. When turning, the transmission shaft can be prevented from being subjected to bending stress and reducing its service life. The limit mechanism on the welding of the traction connecting frame can protect the transmission shaft from being overloaded and damaged due to exceeding the turning limit. The power of the tractor is transmitted through the traction input shaft, the traction intermediate shaft and the traction output shaft, thereby realizing the operation of the baler. The split traction beam and three-section drive shaft are used to transmit power, which can achieve small radius turning, adapt to frequent U-turn operations on small plots, and have better obstacle-crossing performance, which can adapt to back-and-forth operations on uneven plots. When hydraulically lifting, it can effectively protect the drive shaft from interfering with the traction frame.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A traction device, characterized in that: include: A traction input shaft, a coupling plate assembly, a front traction connection frame weld, a traction intermediate shaft, a rear traction connection frame weld, a traction output shaft, a pair of traction beams and a limiting mechanism, wherein the traction input shaft is connected to the traction intermediate shaft, the traction intermediate shaft is connected to the traction output shaft, the coupling plate assembly is installed on the front traction connection frame weld, the front traction connection frame weld is rotatably connected to the rear traction connection frame weld, the traction intermediate shaft is rotatably installed in the front traction connection frame weld and the rear traction connection frame weld, a pair of traction beams are connected to the rear traction connection frame weld, and the limiting mechanism is installed at the connection position of the front traction connection frame weld and the rear traction connection frame weld.

2. A traction device according to claim 1, characterized in that: The coupling plate assembly is welded and connected to the front traction connecting frame via a first connecting pin shaft, and the coupling plate assembly is connected to the rear suspension of the tractor via a second connecting pin shaft.

3. A traction device according to claim 2, characterized in that: The hanging plate assembly includes: a connecting pin sleeve, a hanging cross beam, a hanging plate I, a hanging plate II and a hanging plate sleeve. A first mounting hole is provided in the middle of the hanging cross beam, the connecting pin sleeve is installed in the first mounting hole, the first connecting pin is installed in the connecting pin sleeve, the hanging plate I and the hanging plate II are installed at both ends of the hanging cross beam, a second mounting hole is provided on the hanging plate I and the hanging plate II, the hanging plate sleeve is installed in the second mounting hole, and the second connecting pin is installed in the hanging plate sleeve.

4. A traction device according to claim 1, characterized in that: The traction input shaft is connected to the traction intermediate shaft through a first deep groove ball bearing, and the traction intermediate shaft is connected to the traction output shaft through a second deep groove ball bearing; the front traction connecting frame is welded and rotatably connected to the rear traction connecting frame through an angular contact ball bearing.

5. A traction device according to claim 4, characterized in that: The front traction connecting frame welding includes: a left front side plate, a right front side plate, a front upper plate, a front lower plate, a first bearing seat plate, a front vertical plate and a vertical plate connecting plate, the first bearing seat plate is installed between the front upper plate and the front lower plate, the first deep groove ball bearing is installed in the first bearing seat plate, the front vertical plate, the vertical plate connecting plate, the front upper plate and the front lower plate are all connected to the left front side plate and the right front side plate, the left front side plate and the right front side plate are both provided with notches for installing a hanging plate assembly, the front vertical plate is provided with a connecting hole for connecting the hanging plate assembly, and the size of the notch is larger than the size of the hanging beam of the hanging plate assembly.

6. A traction device according to claim 4, characterized in that: The rear traction connecting frame welding includes: a left rear side plate, a right rear side plate, a rear upper plate, a rear lower plate, and a second bearing seat plate, the second bearing seat plate is installed between the rear upper plate and the rear lower plate, the second deep groove ball bearing is installed in the second bearing seat plate, and the second bearing seat plate, the rear upper plate, and the rear lower plate are all connected to the left rear side plate and the right rear side plate.

7. A traction device according to claim 1, characterized in that: The limiting mechanism includes: a left front limiting bracket, a right front limiting bracket, a left rear limiting bracket, and a right rear limiting bracket. The left front limiting bracket and the right front limiting bracket are respectively installed on both sides of the welding of the front traction connecting frame, and the left rear limiting bracket and the right rear limiting bracket are respectively installed on both sides of the welding of the rear traction connecting frame. The position of the left front limiting bracket corresponds to that of the left rear limiting bracket, and the position of the right front limiting bracket corresponds to that of the right rear limiting bracket. The left front limiting bracket, the right front limiting bracket, the left rear limiting bracket, and the right rear limiting bracket are all provided with abutment surfaces.

8. A traction device according to claim 1, characterized in that: One end of the traction beam is welded to the rear traction connecting frame, and the other end of the traction beam is connected to a traction beam mounting plate for connecting to a baler.

9. A traction device according to claim 1, characterized in that: A universal joint assembly is arranged in the middle of the traction intermediate shaft.

10. A baling machine, characterized in that: A traction device comprising any one of claims 1 to 9.

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