Harvesting, bundling and film coating machine

Abstract

The invention relates to the technical field of silage processing, in particular to a harvesting, bundling and film wrapping machine which comprises a harvesting unit and a smashing and bundling unit and further comprises a film wrapping unit, the film wrapping unit comprises a base, an overturning platform, a rotating supporting table and a film pressing mechanism, the rotating supporting table is rotationally arranged at the top of the overturning platform through a rotating shaft, and a material rolling mechanism is arranged in the rotating supporting table; a driving mechanism is arranged in the overturning platform and comprises a clutch transmission mechanism, a locking mechanism and a motor, the clutch transmission mechanism comprises a fixed fluted disc, a movable fluted disc, a driving shaft and an air cylinder, and the motor and the rotary supporting table can be disconnected or connected by controlling the clutch transmission mechanism in the driving mechanism. The motor is in transmission connection with the rotary supporting table, and when the rotary supporting table needs to be stopped, the motor and the rotary supporting table are disconnected, so that inertial rotation before the rotary supporting table stops does not affect the motor.

Description

Technical Field

[0001] The present invention relates to the technical field of silage feed processing, and specifically relates to a harvesting, baling and wrapping machine. Background Art

[0002] Fresh grass feed is a type of natural and fresh plant feed, mainly used for feeding various herbivorous animals, such as cows, sheep, horses, etc. Fresh grass feed is rich in nutritional value, containing nutrients such as protein, fat, nitrogen-free extract, ash, and cellulose. In addition, it also contains abundant minerals and trace elements, such as calcium, phosphorus, copper, iron, zinc, magnesium, manganese, etc. These nutrients are of great significance for the normal growth and reproduction of animals.

[0003] When harvesting mature grass, it is often necessary to use a combined harvesting, baling, crushing and wrapping machine. The combined harvesting, baling, crushing and wrapping machine is a modern agricultural machinery and equipment that integrates multiple functions such as harvesting, baling, crushing and wrapping, greatly improving the harvesting and subsequent processing efficiency of crops. The existing Chinese patent with the publication number CN112056098B in China discloses a combined forage harvesting, crushing, baling and wrapping machine, but its patent and traditional technologies still have the following defects:

[0004] The problem mentioned in the background art of the above patent that the packaging film placement rack will continue to rotate due to inertia does not exist in actual use. Because the traditional packaging film placement rack is directly sleeved on a fixed rod, the packaging film is rotated by the rotation of the grass bale, and the grass bale is driven to rotate by a rotating turntable. Since there is no bearing connection between the packaging film placement rack and the fixed rod, when the rotating turntable stops, the friction between the fixed rod and the packaging film placement rack will drive the packaging film placement rack to stop rotating immediately. Then, in actual use, the following problems will occur. The rotating turntable and the grass bale are relatively heavy. If the motor is directly connected to the rotating turntable, after the motor stops, the rotating turntable will continue to rotate due to inertia. At this time, the rotating turntable will twist the output shaft of the motor, which will cause damage to the motor and reduce the service life of the motor in the long run. And after the rotating turntable that rotates by inertia finally stops, its position may deviate from the initial position, ultimately resulting in the grass bale getting stuck on the rotating turntable when the grass bale is turned over and unloaded. Therefore, it is necessary to provide a harvesting, baling and wrapping machine to solve the above problems. Summary of the Invention

[0005] Based on this, it is necessary to provide a harvesting, baling and wrapping machine for the problems in the prior art.

[0006] In order to solve the problems of the prior art, the technical solution adopted by the present invention is: a harvesting, baling and wrapping machine, including a harvesting unit and a crushing and baling unit, and also including a wrapping unit arranged downstream of the crushing and baling mechanism, the wrapping unit includes a base, a turning platform, a rotating support and a film pressing mechanism, the turning platform is arranged on the base, the rotating support is arranged on the top of the turning platform through a vertical rotating shaft, the film pressing mechanism is arranged on one side of the rotating support, the rotating support is used to support and drive the green grass bale to revolve around the axis of the rotating shaft, and a rolling mechanism is arranged in the rotating support for driving the green grass bale to roll around its own axis A driving mechanism for driving the rotating shaft to rotate is provided in the flip platform, and the driving mechanism includes a clutch transmission mechanism, a locking mechanism and a motor. The motor is connected to the rotating shaft through the clutch transmission mechanism. The clutch transmission mechanism includes a fixed gear plate, a movable gear plate, a driving shaft and a cylinder. The fixed gear plate is coaxially connected to the rotating shaft, and the driving shaft is connected to the output end of the motor. The movable gear plate slides on the driving shaft, and the movable gear plate is connected to the driving shaft through a spline. The cylinder is used to drive the movable gear plate to engage and separate with the fixed gear plate, and the locking mechanism is used to lock the rotating support after the movable gear plate is separated from the fixed gear plate.

[0007] Furthermore, the rotating support is in an inverted trapezoidal shape, and the top of the rotating support is an open structure. A receiving groove connected to the top of the rotating support is provided in the rotating support. The rolling mechanism includes a driving roller and two supporting rollers rotatably arranged in the receiving groove. The axial directions of the driving roller and the two supporting rollers are both horizontal. The driving roller and the two supporting rollers are distributed in a triangular shape, wherein the two supporting rollers are in a symmetrical state, and the driving roller is located below the two supporting rollers. The driving roller and the two supporting rollers are provided with a plurality of transmission belts equidistantly distributed along the axial direction of the driving roller.

[0008] Furthermore, the film pressing mechanism includes a hydraulic cylinder and a pressing arm, the pressing arm includes a pressing plate and a rotating rod, the middle part of the rotating rod is axially connected to the side wall of the rotating support, the pressing plate is close to the top of the rotating support, and the pressing plate is fixedly connected to one end of the rotating rod, the cylinder body of the hydraulic cylinder is axially connected to the side wall of the rotating support, and the rod of the hydraulic cylinder is axially connected to the other end of the rotating rod.

[0009] Furthermore, the flipping platform is rectangular, and a second accommodating groove is provided in the flipping platform. The driving mechanism is provided in the second accommodating groove. A bracket is formed on the top of the base. The bottom end of one side of the flipping platform is axially connected to the bracket. A second hydraulic cylinder is provided on the other side of the flipping platform. The cylinder body of the second hydraulic cylinder is axially connected to the base, and the rod of the second hydraulic cylinder is axially connected to the bottom end of the flipping platform.

[0010] Furthermore, the rotating shaft is downwardly inserted into the second accommodating groove, the fixed gear plate is coaxially fixedly connected to the bottom end of the rotating shaft, the tooth surface of the fixed gear plate faces downward, the tooth surface of the movable gear plate faces upward, the driving shaft and the rotating shaft are coaxial, and the driving shaft is rotatably arranged in the second accommodating groove, and a through hole is provided at the center of the movable gear plate, and a sliding sleeve connected to the through hole is coaxially formed on the side of the movable gear plate away from its tooth surface, and the movable gear plate slides coaxially on the driving shaft through the sliding sleeve, and a plurality of limit strips equidistantly distributed along its circumferential direction are formed on the inner wall of the sliding sleeve, and each limit strip is vertical, and a vertical groove matching with the plurality of limit strips is opened on the outer wall of the driving shaft, and the motor is vertically fixedly arranged in the second accommodating groove, and a synchronous wheel is coaxially fixedly connected to the output end of the motor and the driving shaft, and a synchronous belt is sleeved on the two synchronous wheels.

[0011] Furthermore, a convex ring 1 is coaxially formed at the lower end of the sliding sleeve, a convex ring 2 is coaxially formed on the outer wall of the lower end of the driving shaft, a spring 1 is coaxially sleeved at the lower end of the driving shaft, the upper and lower ends of the spring 1 are respectively in contact with the convex ring 1 and the convex ring 2, the cylinder is vertically fixed in the accommodating groove 2, a movable ring is coaxially sleeved on the sliding sleeve, a plane bearing located between the movable ring and the convex ring 1 is embedded at the bottom of the movable ring, and the movable ring is fixedly connected to the output end of the cylinder through a connecting rod 1.

[0012] Furthermore, a cylindrical table is coaxially formed on the top of the fixed toothed disc, and there are two groups of locking mechanisms, which are equidistantly distributed along the circumferential direction of the cylindrical table. Each group of locking mechanisms includes a bracket, a movable rod and a locking pin. The bracket is vertically fixed in the second receiving groove. The upper end of the bracket is fixedly connected to two symmetrical fixed shafts, and the axial direction of each fixed shaft is horizontal. The movable rod is horizontal, and circular sleeves are formed at both ends of the movable rod and are coaxially sleeved on the two fixed shafts respectively. Each fixed shaft is sleeved with a second spring. The two ends of each spring are respectively in conflict with the round sleeve and the bracket, the locking pin is fixedly connected to the movable rod, and the locking pin is perpendicular to the movable rod, and two locking holes are provided on the outer wall of the cylindrical table for the two locking pins to be horizontally inserted into the locking holes, and one end of each locking pin inserted into the locking hole is round-headed, a vertically downward inclined wedge block 1 is fixed on the movable rod, and two symmetrical connecting rods 2 are formed on the movable ring, a vertically upward inclined wedge block 2 is fixed on one end of each connecting rod 2, and each inclined wedge block 1 cooperates with the corresponding inclined wedge block 2.

[0013] Furthermore, a roller transmission mechanism is provided between the rotating support platform and the flipping platform. The roller transmission mechanism includes a gear ring, a bevel gear and a transmission shaft. The transmission shaft is horizontally rotatable and arranged at the bottom of the rotating support platform. The gear ring is fixedly arranged at the top of the flipping platform, and the gear ring is coaxial with the rotating shaft. The bevel gear is coaxially fixedly connected to one end of the transmission shaft, and the bevel gear is meshed with the gear ring. Two synchronous wheels are coaxially fixedly connected to the transmission shaft and the driving roller, and two synchronous belts are sleeved on the two synchronous wheels.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] First, the motor and the rotating platform can be connected or disconnected by controlling the clutch transmission mechanism in the driving mechanism. When the rotating platform needs to rotate, the motor is connected to the rotating platform by transmission. When the rotating platform needs to stop, the motor and the rotating platform are disconnected, so that the inertial rotation before the rotating platform stops will not affect the motor.

[0016] Secondly, after the connection between the motor and the rotating platform is disconnected, the rotating platform is locked by the locking mechanism, thereby ensuring that the rotating platform can stop at the initial position, thereby preventing the green grass bale from being stuck in the rotating platform and unable to slide off when the green grass bale is turned over and unloaded;

[0017] Thirdly, the rotating platform can be connected to the driving roller by the roller transmission mechanism arranged before the rotating platform and the turning platform. When the rotating platform drives the grass bale to revolve, the driving roller will synchronously drive the grass bale to rotate. The driving roller does not need an additional motor drive through the mechanical connection, which further reduces the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the three-dimensional structure of an embodiment;

[0019] Figure 2 is a top view of an embodiment;

[0020] Figure 3 yes Figure 2 Section view along line AA;

[0021] Figure 4 yes Figure 3 A1 is a partial enlarged schematic diagram;

[0022] Figure 5 yes Figure 2 Sectional view along line BB;

[0023] Figure 6 yes Figure 5 A2 is a partial enlarged schematic diagram;

[0024] Figure 7 It is a three-dimensional structural schematic diagram of a rotating support platform;

[0025] Figure 8 It is a three-dimensional structural schematic diagram of the driving mechanism;

[0026] Figure 9 It is a three-dimensional structural schematic diagram of a fixed toothed disc;

[0027] Figure 10 It is a three-dimensional structural exploded diagram of the movable gear plate and the drive shaft.

[0028] The numbers in the figure are: 1, base; 2, turning platform; 3, rotating support platform; 4, rotating shaft; 5, motor; 6, fixed gear plate; 7, movable gear plate; 8, driving shaft; 9, cylinder; 10, receiving groove 1; 11, driving roller; 12, supporting roller; 13, transmission belt; 14, hydraulic cylinder 1; 15, pressing arm; 16, pressing plate; 17, rotating rod; 18, receiving groove 2; 19, bracket; 20, hydraulic cylinder 2; 21, through hole; 22, sliding sleeve; 23, limiting strip; 24, vertical groove; 25, Synchronous wheel one; 26, synchronous belt one; 27, convex ring one; 28, convex ring two; 29, spring one; 30, movable ring; 31, plane bearing; 32, connecting rod one; 33, cylindrical table; 34, bracket; 35, movable rod; 36, locking pin; 37, fixed shaft; 38, round sleeve; 39, spring two; 40, locking hole; 41, oblique wedge block one; 42, connecting rod two; 43, oblique wedge block two; 44, gear ring; 45, bevel gear; 46, transmission shaft; 47, synchronous wheel two; 48, synchronous belt two. DETAILED DESCRIPTION

[0029] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] refer to Figures 1 to 10 The harvesting, baling and film wrapping machine shown in the figure includes a harvesting unit and a crushing and baling unit, and also includes a film wrapping unit arranged downstream of the crushing and baling mechanism, the film wrapping unit includes a base 1, a turning platform 2, a rotating support 3 and a film pressing mechanism, the turning platform 2 is arranged on the base 1, the rotating support 3 is arranged on the top of the turning platform 2 through a vertical rotating shaft 4, the film pressing mechanism is arranged on one side of the rotating support 3, the rotating support 3 is used to support and drive the green grass bale to revolve around the axis of the rotating shaft 4, the rotating support 3 is provided with a rolling mechanism for driving the green grass bale to roll around its own axis, and the turning platform 2 is provided with a rotating shaft for driving the rotating shaft 4 is a driving mechanism for rotation, the driving mechanism includes a clutch transmission mechanism, a locking mechanism and a motor 5, the motor 5 is connected to the rotating shaft 4 through the clutch transmission mechanism, the clutch transmission mechanism includes a fixed toothed disc 6, a movable toothed disc 7, a driving shaft 8 and a cylinder 9, the fixed toothed disc 6 is coaxially connected to the rotating shaft 4, the driving shaft 8 is connected to the output end of the motor 5, the movable toothed disc 7 slides on the driving shaft 8, and the movable toothed disc 7 is connected to the driving shaft 8 through a spline, the cylinder 9 is used to drive the movable toothed disc 7 to engage with and separate from the fixed toothed disc 6, and the locking mechanism is used to lock the rotating support 3 after the movable toothed disc 7 and the fixed toothed disc 6 are separated.

[0031] The harvesting unit and the crushing and baling unit are both prior arts, so they are not shown in the figure. In actual use, the harvesting unit, the crushing and baling unit, and the film wrapping unit are all installed on the tractor, and a film cylinder is provided beside the film wrapping unit, which is not shown in the figure. Among them, the harvesting unit is used to cut the grass on the ground, the crushing and baling unit is used to cut and bale the grass, and after baling, the grass fragments become grass bales. Finally, the film wrapping unit will wrap the plastic film on the film cylinder around the grass bales;

[0032] When first wrapping the grass bales with film, one end of the plastic film on the film cylinder needs to be pulled to the film pressing mechanism. Thereafter, the film pressing mechanism presses one end of the plastic film against one side of the rotating turntable 3. When the grass bale is formed, the grass bale falling from the crushing and baling unit will be supported by the rotating turntable 3, and the grass bale falling into the rotating turntable 3 is in a horizontal state. Thereafter, the driving mechanism drives the rotating turntable 3 to rotate through the rotating shaft 4. The rotating turntable 3 drives the grass bale to revolve around the axis of the rotating shaft 4, and at the same time, the material rolling mechanism drives the grass bale to rotate around its own axis. In this way, through the two-way rotation of the grass bale, the plastic film can completely wrap the entire grass bale. When the plastic film is wrapped around the grass bale, the film pressing mechanism releases the plastic film. When the film wrapping is completed, the film pressing mechanism will press the plastic film between the grass bale and the film cylinder against one side of the rotating turntable 3 again. Finally, when the rotating turntable 3 stops rotating, the flipping platform 2 will flip the rotating turntable 3 to one side. During this process, the grass bale will slide off the rotating turntable 3. Since the plastic film is pressed by the film pressing mechanism at this time, when the grass bale slides off the rotating turntable 3, the plastic film connected to the grass bale will be torn off, and at this time, the film pressing mechanism will press the broken end of the plastic film. Then, when wrapping the subsequent grass bales with film, there is no need to pull the plastic film to the film pressing mechanism again. To sum up, the film wrapping unit of this device can automatically wrap the continuously produced grass bales with film;

[0033] Due to the relatively large weights of the rotating turntable 3 and the grass bale, if the motor 5 is directly connected to the rotating turntable 3, after the motor 5 stops, the rotating turntable 3 will continue to rotate due to inertia. At this time, the rotating turntable 3 will twist the output shaft of the motor 5, which will cause damage to the motor 5 over a long period and reduce the service life of the motor 5. Moreover, after the rotating turntable 3 that rotates by inertia finally stops, its position may deviate from the initial position. Since the flipping direction of the flipping platform 2 remains unchanged, when the flipping platform 2 drives the rotating turntable 3 to flip, the grass bale will get stuck on the rotating turntable 3 and cannot slide down by itself. Therefore, it is necessary to position the final stop position of the rotating turntable 3. During the process of driving the rotating turntable 3 to rotate, first start the motor 5, and the motor 5 drives the drive shaft 8 to rotate. Then start the cylinder 9, and the cylinder 9 will drive the movable gear disk 7 to move upward and engage with the fixed gear disk 6. When the movable gear disk 7 is fully engaged with the fixed gear disk 6, the rotating shaft 4 will drive the rotating turntable 3 to rotate. When the wrapping of the grass bale is about to end, the cylinder 9 directly drives the movable gear disk 7 to move downward and separate from the fixed gear disk 6. At this time, the transmission between the rotating shaft 4 and the motor 5 is disconnected, and the rotating turntable 3 continues to rotate by inertia. Thereafter, during the process of the rotating turntable 3 rotating by inertia, the locking mechanism will lock the rotating turntable 3, finally ensuring that the stop position of the rotating turntable 3 is the same as the initial position. And when the rotating turntable 3 rotates by inertia, the transmission between the rotating shaft 4 and the motor 5 is disconnected, so it will not affect the motor 5.

[0034] In order to show the specific structure of the rotating turntable 3 and the material rolling mechanism, the following features are set:

[0035] The rotating turntable 3 is in an inverted trapezoid shape, the top of the rotating turntable 3 is an open structure, and a first accommodating groove 10 communicating with its top is opened in the rotating turntable 3. The material rolling mechanism includes a driving roller 11 and two supporting rollers 12 rotatably arranged in the first accommodating groove 10. The axial directions of the driving roller 11 and the two supporting rollers 12 are all horizontal, and the driving roller 11 and the two supporting rollers 12 are distributed in a triangular shape. Among them, the two supporting rollers 12 are in a symmetrical state, the driving roller 11 is located below the two supporting rollers 12, and a number of transmission belts 13 are sleeved on the driving roller 11 and the two supporting rollers 12 and are equidistantly distributed along the axial direction of the driving roller 11.

[0036] When the grass bale falls from the crushing and baling unit, the grass bale will fall between the two supporting rollers 12 through the top of the rotating turntable 3. At this time, the grass bale is lifted upward by the transmission belts 13 between the two supporting rollers 12, and the axial direction of the grass bale is parallel to the axial directions of the two supporting rollers 12. When the driving roller 11 rotates, the driving roller 11 will drive the two supporting rollers 12 to rotate in the same direction through a number of transmission belts 13. Finally, the grass bale is driven to rotate around its axis by the transmission belts 13 and the two supporting rollers 12.

[0037] In order to show the specific structure of the pressing die mechanism, the following features are set:

[0038] The film pressing mechanism includes a first hydraulic cylinder 14 and a pressing arm 15. The pressing arm 15 includes a pressing plate 16 and a rotating rod 17. The middle part of the rotating rod 17 is pivotally connected to the side wall of the rotating turntable 3. The pressing plate 16 is close to the top of the rotating turntable 3, and the pressing plate 16 is fixedly connected to one end of the rotating rod 17. The cylinder body of the first hydraulic cylinder 14 is pivotally connected to the side wall of the rotating turntable 3, and the rod part of the first hydraulic cylinder 14 is pivotally connected to the other end of the rotating rod 17.

[0039] When the rod part of the first hydraulic cylinder 14 extends, as Figure 1 shown, the rod part of the first hydraulic cylinder 14 will push the rotating rod 17 to rotate. In this way, the rotating rod 17 will drive the pressing plate 16 to press down. Finally, the pressing plate 16 will be in a horizontal state. At this time, the pressing plate 16 will press the plastic film tightly on the top surface on one side of the rotating turntable 3. When the rod part of the first hydraulic cylinder 14 retracts, the rod part of the first hydraulic cylinder 14 will drag the rotating rod 17 to reverse. At this time, the rotating rod 17 will drive the pressing plate 16 to lift. After the plastic film is wrapped around the grass bale, the rod part of the first hydraulic cylinder 14 in the extended state will first retract, so that the pressing plate 16 will loosen the plastic film. When the grass bale wrapping is about to end, the rod part of the first hydraulic cylinder 14 will extend again. At this time, the pressing plate 16 will press the plastic film tightly again. Finally, when the grass bale flips and falls, the plastic film connected to the grass bale will be torn off by the pressing plate 16.

[0040] In order to show how the flipping platform 2 realizes flipping, the following features are set:

[0041] The flipping platform 2 is rectangular. An accommodating groove two 18 is arranged inside the flipping platform 2. The driving mechanism is arranged inside the accommodating groove two 18. A bracket 19 is formed on the top of the base 1. The bottom end on one side of the flipping platform 2 is pivotally connected to the bracket 19. A second hydraulic cylinder 20 is arranged on the other side of the flipping platform 2. The cylinder body of the second hydraulic cylinder 20 is pivotally connected to the base 1, and the rod part of the second hydraulic cylinder 20 is pivotally connected to the bottom end of the flipping platform 2.

[0042] When the rod part of the second hydraulic cylinder 20 retracts, as Figure 1 shown, the rod part of the second hydraulic cylinder 20 will pull the flipping platform 2 to be placed on the bracket 19. When the rod part of the second hydraulic cylinder 20 extends, the rod part of the second hydraulic cylinder 20 will push the flipping platform 2. In this way, the flipping platform 2 will flip towards one side. The flipping platform 2 will drive the rotating turntable 3 to flip together. Then the grass bale located inside the rotating turntable 3 will directly roll over one of the supporting rollers 12 and finally slide out of the rotating turntable 3.

[0043] In order to show the specific installation method of the movable gear disk 7 and the driving shaft 8, and how the motor 5 drives the driving shaft 8 to rotate, the following features are set:

[0044] The rotating shaft 4 penetrates downward into the accommodating groove 18, the fixed gear disc 6 is coaxially fixedly connected with the bottom end of the rotating shaft 4, the tooth surface of the fixed gear disc 6 faces downward, the tooth surface of the movable gear disc 7 faces upward, the driving shaft 8 is coaxial with the rotating shaft 4, and the driving shaft 8 is rotatably arranged in the accommodating groove 18. A through hole 21 is provided at the center of the movable gear disc 7, and a sliding sleeve 22 connected to the through hole 21 is coaxially formed on the side of the movable gear disc 7 away from its tooth surface. The movable gear disc 7 slides coaxially on the driving shaft 8 through the sliding sleeve 22, and a plurality of limit strips 23 equidistantly distributed along its circumferential direction are formed on the inner wall of the sliding sleeve 22, and each limit strip 23 is vertical. A vertical groove 24 matching with the plurality of limit strips 23 is opened on the outer wall of the driving shaft 8, and the motor 5 is vertically fixed in the accommodating groove 18, and a synchronous wheel 25 is coaxially fixedly connected to the output end of the motor 5 and the driving shaft 8, and a synchronous belt 26 is sleeved on the two synchronous wheels 25.

[0045] When the motor 5 is started, the motor 5 will drive the drive shaft 8 to rotate through the synchronous belt 26. Since each limit bar 23 is arranged in the corresponding vertical groove 24, when the drive shaft 8 rotates, the movable gear plate 7 will be driven to rotate by the drive shaft 8, and when the movable gear plate 7 rotates, the movable gear plate 7 can be lifted and lowered by the drive of the cylinder 9. When the movable gear plate 7 is lifted and lowered, each limit bar 23 slides up and down in the corresponding vertical groove 24.

[0046] In order to prevent the movable toothed disc 7 from colliding with the fixed toothed disc 6 when it rises, the following features are provided:

[0047] A convex ring 27 is coaxially formed at the lower end of the sliding sleeve 22, and a convex ring 28 is coaxially formed on the outer wall of the lower end of the driving shaft 8. A spring 29 is coaxially sleeved at the lower end of the driving shaft 8, and the upper and lower ends of the spring 29 are respectively in contact with the convex ring 27 and the convex ring 28. The cylinder 9 is vertically fixed in the accommodating groove 218, and a movable ring 30 is coaxially sleeved on the sliding sleeve 22. A plane bearing 31 located between the movable ring 30 and the convex ring 27 is embedded at the bottom of the movable ring 30. The movable ring 30 is fixedly connected to the output end of the cylinder 9 through a connecting rod 32.

[0048] In the initial state, if Figure 3 and Figure 4As shown, the movable gear disk 7 and the fixed gear disk 6 are in a separated state. During this process, the output end of the air cylinder 9 retracts downward. At this time, the first connecting rod 32 will drive the movable ring 30 to displace downward. The movable ring 30 abuts against the first convex ring 27 through the plain bearing 31 at its bottom. Finally, the first convex ring 27 will drive the entire movable gear disk 7 to displace downward through the sliding sleeve 22. When the movable gear disk 7 descends, the first spring 29 will be compressed. When it is necessary for the movable gear disk 7 to engage with the fixed gear disk 6, the output end of the air cylinder 9 extends upward. At this time, the first connecting rod 32 will drive the movable ring 30 to displace upward. The first spring 29 will abut against the first convex ring 27 to drive the sliding sleeve 22 to rise. During this process, the first convex ring 27 always abuts against the plain bearing 31, preventing hard friction between the movable ring 30 and the first convex ring 27 through the plain bearing 31. After the movable gear disk 7 rises, the tooth surfaces of the movable gear disk 7 and the fixed gear disk 6 will collide. At this time, the movable gear disk 7 will descend a short distance through the elasticity of the first spring 29, finally ensuring that the tooth surfaces of the movable gear disk 7 and the fixed gear disk 6 do not undergo hard collision.

[0049] In order to show the specific structure of the locking mechanism, the following features are provided:

[0050] A cylindrical platform 33 is coaxially formed on the top of the fixed gear disk 6. The number of locking mechanisms is two groups, and the two groups of locking mechanisms are equidistantly distributed along the circumferential direction of the cylindrical platform 33. Each group of locking mechanisms includes a bracket 34, a movable rod 35 and a locking pin 36. The bracket 34 is vertically fixed in the second accommodating groove 18. Two symmetrically arranged fixed shafts 37 are fixedly connected to the upper end of the bracket 34. The axial direction of each fixed shaft 37 is horizontal. The movable rod 35 is horizontal. Circular sleeves 38 are formed at both ends of the movable rod 35 and are coaxially sleeved on the two fixed shafts 37 respectively. A second spring 39 is sleeved on each fixed shaft 37. Both ends of each second spring 39 abut against the circular sleeve 38 and the bracket 34 respectively. The locking pin 36 is fixedly connected to the movable rod 35 and is perpendicular to the movable rod 35. Two lock holes 40 are formed on the outer wall of the cylindrical platform 33 for the two locking pins 36 to be horizontally inserted respectively. One end of each locking pin 36 inserted into the lock hole 40 is round-headed. A first inclined wedge 41 is fixedly arranged vertically downward on the movable rod 35. Two symmetrically arranged second connecting rods 42 are formed on the movable ring 30. A second inclined wedge 43 is fixedly arranged vertically upward at one end of each second connecting rod 42, and each first inclined wedge 41 cooperates with the corresponding second inclined wedge 43.

[0051] In the initial state, the movable gear disk 7 is separated from the fixed gear disk 6. At this time, the output end of the air cylinder 9 is in a retracted state. The second wedge block 43 will be driven downward by the movable ring 30. Thus, the first wedge block 41 will be separated from the second wedge block 43. At the same time, each second spring 39 drives the movable rod 35 to move toward the cylindrical platform 33 through its elastic force. Finally, the movable rod 35 will drive the locking pin 36 to horizontally insert into the corresponding locking hole 40. When it is necessary to drive the rotating turntable 3 to rotate, the output end of the air cylinder 9 drives the movable ring 30 to rise. At this time, the compressed first spring 29 will drive the first convex ring 27 to drive the movable gear disk 7 to rise due to its elastic action. When the movable ring 30 rises, the second connecting rod 42 will drive the second wedge block 43 to move upward. Thus, the second wedge block 43 will abut against the first wedge block 41. And as the second wedge block 43 rises, the first wedge block 41 will drive the movable rod 35 to translate away from the cylindrical platform 33. At the same time, the second spring 39 is compressed to generate elastic force. Finally, the locking pin 36 will be driven to be withdrawn from the corresponding locking hole 40. When the locking pin 36 is completely withdrawn from the corresponding locking hole 40, the movable gear disk 7 moves upward to completely engage with the fixed gear disk 6. After that, the rotating movable gear disk 7 drives the fixed gear disk 6 to rotate. When it is necessary to stop the rotating turntable 3, the output end of the air cylinder 9 drives the movable ring 30 to descend. The movable gear disk 7 will descend together with the movable ring 30. At the same time, the movable ring 30 will drive the second wedge block 43 to descend through the second connecting rod 42. As the second wedge block 43 descends, the first wedge block 41 will gradually be separated from the second wedge block 43. At this time, the movable rod 35 will be gradually pushed by the elastic force of the second spring 39 to translate toward the cylindrical platform 33. Finally, the locking pin 36 will be driven to abut against the rotating cylindrical platform 33. When the locking pin 36 is not inserted into the corresponding locking hole 40, the locking pin 36 slides on the outer wall of the cylindrical platform 33 through its round head end. And when the cylindrical platform 33 rotates the locking hole 40 to the position of the locking pin 36, the locking pin 36 will immediately be bounced into the corresponding locking hole 40. Thus, the fixed gear disk 6 is locked by the two locking pins 36 inserted into the locking holes 40. Among them, before the rotating turntable 3 needs to stop, the air cylinder 9 is directly started to separate the fixed gear disk 6 and the movable gear disk 7. After that, the rotating turntable 3 will continue to rotate a certain angle through its inertia. During this process, the round head ends of the two locking pins 36 will slide on the outer wall of the cylindrical platform 33. When the rotating turntable 3 rotates to the initial position through inertia, the two locking pins 36 will immediately bounce into the corresponding locking holes 40. Finally, it is ensured that the rotating turntable 3 rotating through inertia can stop at the initial position, as Figure 8 shown, the bracket 34 is fixedly arranged as a support member and will not rotate with the fixed gear disk 6. Before the fixed gear disk 6 is driven to rotate by the movable gear disk 7, the locking pin 36 arranged on the bracket 34 has been driven to retract and move away from the fixed gear disk 6 by the second wedge block 43. Therefore, the locking pin 36 will not rotate with the fixed gear disk 6.

[0052] In order to achieve that when the rotating turntable 3 rotates, the driving roller 11 can rotate synchronously, the following features are set:

[0053] A roller shaft transmission mechanism is provided between the rotating turntable 3 and the tipping platform 2. The roller shaft transmission mechanism includes a gear ring 44, a bevel gear 45 and a transmission shaft 46. The transmission shaft 46 is horizontally rotatably arranged at the bottom of the rotating turntable 3. The gear ring 44 is fixedly arranged at the top of the tipping platform 2, and the gear ring 44 is coaxial with the rotating shaft 4. The bevel gear 45 is coaxially fixed to one end of the transmission shaft 46, and the bevel gear 45 meshes with the gear ring 44. Synchronous pulleys two 47 are coaxially fixed to both the transmission shaft 46 and the driving roller 11, and a synchronous belt two 48 is sleeved on the two synchronous pulleys two 47.

[0054] When the rotating turntable 3 rotates, the transmission shaft 46 arranged at the bottom of the rotating turntable 3 will drive the bevel gear 45 to revolve around the gear ring 44. Since the gear ring 44 is in a fixed state, the bevel gear 45 will also rotate on its own while revolving around the gear ring 44. After the bevel gear 45 rotates, the bevel gear 45 will drive the driving roller 11 to rotate through the synchronous belt two 48, and finally realize the synchronous rotation of the rotating turntable 3 and the driving roller 11.

[0055] Working principle:

[0056] The harvesting unit and the crushing and baling unit are both prior arts, so they are not shown in the figure. In actual use, the harvesting unit, the crushing and baling unit and the film winding unit are all installed on the tractor, and a film cylinder is provided beside the film winding unit. The film cylinder is not shown in the figure. Among them, the harvesting unit is used to cut the grass on the ground, the crushing and baling unit is used to cut and bale the grass. After baling, the grass pieces become grass bales. Finally, the film winding unit will wrap the plastic film on the film cylinder around the grass bales;

[0057] When the first wrapping of the grass bale is carried out, one end of the plastic film on the film cylinder needs to be pulled to the pressing plate 16 in the film pressing mechanism. After that, the film pressing mechanism presses one end of the plastic film against one side of the rotating turntable 3. When the grass bale is formed, the grass bale falling from the crushing and baling unit will be supported by the rotating turntable 3, and the grass bale falling into the rotating turntable 3 is in a horizontal state. After that, the driving mechanism drives the rotating turntable 3 to rotate through the rotating shaft 4. The rotating turntable 3 will drive the grass bale to revolve around the axis of the rotating shaft 4, and at the same time, the material rolling mechanism will drive the grass bale to rotate around its own axis. In this way, through the two-way rotation of the grass bale, the plastic film can completely cover the entire grass bale. When the plastic film is covered on the grass bale, the film pressing mechanism releases the plastic film. When the covering of the plastic film is completed, the film pressing mechanism will press the plastic film between the grass bale and the film cylinder against one side of the rotating turntable 3 again. Finally, when the rotating turntable 3 stops rotating, the flipping platform 2 will flip the rotating turntable 3 to one side. During this process, the grass bale will slide off the rotating turntable 3. Since the plastic film is pressed by the film pressing mechanism at this time, when the grass bale slides off the rotating turntable 3, the plastic film connected to the grass bale will be torn off, and at this time, the film pressing mechanism will press the broken end of the plastic film. Then, when wrapping the subsequent grass bales, there is no need to pull the plastic film to the film pressing mechanism again. To sum up, the film wrapping unit of this device can automatically wrap the continuously produced grass bales;

[0058] Due to the large weights of the rotating turntable 3 and the grass bale, if the motor 5 is directly connected to the rotating turntable 3, after the motor 5 stops, the rotating turntable 3 will continue to rotate due to inertia. At this time, the rotating turntable 3 will twist the output shaft of the motor 5, which will cause damage to the motor 5 in the long run and reduce the service life of the motor 5. And after the rotating turntable 3 that rotates by inertia finally stops, its position may deviate from the initial position. Since the flipping direction of the flipping platform 2 remains unchanged, when the flipping platform 2 drives the rotating turntable 3 to flip, the grass bale will get stuck on the rotating turntable 3 and cannot slide down by itself. Therefore, it is necessary to position the final stop position of the rotating turntable 3. During the process of driving the rotating turntable 3 to rotate, first start the motor 5, the motor 5 drives the driving shaft 8 to rotate, and then start the cylinder 9. The cylinder 9 will drive the movable gear disk 7 to move upward and engage with the fixed gear disk 6. When the movable gear disk 7 is completely engaged with the fixed gear disk 6, the rotating shaft 4 will drive the rotating turntable 3 to rotate. When the wrapping of the grass bale is about to end, the cylinder 9 directly drives the movable gear disk 7 to move downward and separate from the fixed gear disk 6. At this time, the transmission between the rotating shaft 4 and the motor 5 is disconnected, and the rotating turntable 3 continues to rotate by inertia. After that, during the process of the rotating turntable 3 rotating by inertia, the locking mechanism will lock the rotating turntable 3, finally ensuring that the stop position of the rotating turntable 3 is the same as the initial position. And when the rotating turntable 3 rotates by inertia, the transmission between the rotating shaft 4 and the motor 5 is disconnected, so it will not affect the motor 5.

[0059] The above embodiments merely represent one or several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several variations and improvements can still be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. The reaping baling and wrapping machine, comprising a reaping unit and a crushing and baling unit, is characterized in that The invention also comprises a film wrapping unit arranged downstream of the crushing and baling mechanism, the film wrapping unit comprising a base (1), a turning platform (2), a rotating support (3) and a film pressing mechanism, the turning platform (2) being arranged on the base (1), the rotating support (3) being arranged on the top of the turning platform (2) by rotating through a vertical rotating shaft (4), the film pressing mechanism being arranged on one side of the rotating support (3), the rotating support (3) being used to support and drive the green grass bale to revolve around the axis of the rotating shaft (4), the rotating support (3) being provided with a rolling mechanism for driving the green grass bale to roll around its own axis, the turning platform (2) being provided with a driving mechanism for driving the rotating shaft (4) to rotate, the driving mechanism comprising a clutch transmission The invention relates to a rotary table (3) comprising a rotating shaft (4) and a locking mechanism, wherein the motor (5) is connected to the rotary shaft (4) through a clutch transmission mechanism, wherein the clutch transmission mechanism comprises a fixed toothed disc (6), a movable toothed disc (7), a drive shaft (8) and a cylinder (9), wherein the fixed toothed disc (6) is coaxially connected to the rotary shaft (4), the drive shaft (8) is connected to the output end of the motor (5), the movable toothed disc (7) slides on the drive shaft (8), and the movable toothed disc (7) is connected to the drive shaft (8) through a spline, the cylinder (9) is used to drive the movable toothed disc (7) to engage with and separate from the fixed toothed disc (6), and the locking mechanism is used to lock the rotary table (3) after the movable toothed disc (7) and the fixed toothed disc (6) are separated.

2. The forage harvester baler wrapper according to claim 1, wherein The rotating support (3) is in the shape of an inverted trapezoid. The top of the rotating support (3) is an open structure. A receiving groove (10) connected to the top of the rotating support (3) is provided in the rotating support (3). The rolling mechanism comprises a driving roller (11) and two supporting rollers (12) rotatably arranged in the receiving groove (10). The axial directions of the driving roller (11) and the two supporting rollers (12) are both horizontal. The driving roller (11) and the two supporting rollers (12) are distributed in a triangular shape. The two supporting rollers (12) are symmetrical. The driving roller (11) is located below the two supporting rollers (12). The driving roller (11) and the two supporting rollers (12) are sleeved with a plurality of transmission belts (13) equidistantly distributed along the axial direction of the driving roller (11).

3. The forage harvester baler wrapper according to claim 1, characterized in that, The film pressing mechanism comprises a hydraulic cylinder (14) and a pressing arm (15), the pressing arm (15) comprises a pressing plate (16) and a rotating rod (17), the middle part of the rotating rod (17) is axially connected to the side wall of the rotating support (3), the pressing plate (16) is close to the top of the rotating support (3), and the pressing plate (16) is fixedly connected to one end of the rotating rod (17), the cylinder body of the hydraulic cylinder (14) is axially connected to the side wall of the rotating support (3), and the rod part of the hydraulic cylinder (14) is axially connected to the other end of the rotating rod (17).

4. The forage harvester baler wrapper according to claim 1, wherein The turning platform (2) is rectangular, and a second receiving groove (18) is provided in the turning platform (2). The driving mechanism is provided in the second receiving groove (18). A bracket (19) is formed on the top of the base (1). The bottom end of one side of the turning platform (2) is axially connected to the bracket (19). A second hydraulic cylinder (20) is provided on the other side of the turning platform (2). The cylinder body of the second hydraulic cylinder (20) is axially connected to the base (1), and the rod of the second hydraulic cylinder (20) is axially connected to the bottom end of the turning platform (2).

5. The harvesting baling and wrapping machine according to claim 4, wherein, The rotating shaft (4) is inserted downward into the second receiving groove (18), the fixed toothed disc (6) is coaxially fixedly connected with the bottom end of the rotating shaft (4), the tooth surface of the fixed toothed disc (6) faces downward, the tooth surface of the movable toothed disc (7) faces upward, the driving shaft (8) is coaxial with the rotating shaft (4), the driving shaft (8) is rotatably arranged in the second receiving groove (18), a through hole (21) is arranged at the center of the circle of the movable toothed disc (7), a sliding sleeve (22) connected to the through hole (21) is coaxially formed on the side of the movable toothed disc (7) away from the tooth surface thereof, and the movable toothed disc (7) is connected to the through hole (21) through the sliding sleeve (22). ) is coaxially slid on the drive shaft (8), a plurality of limit strips (23) are formed on the inner wall of the sliding sleeve (22) and are equidistantly distributed along the circumferential direction thereof, each limit strip (23) is vertical, a vertical groove (24) matching with the plurality of limit strips (23) is formed on the outer wall of the drive shaft (8), the motor (5) is vertically fixed in the accommodating groove (18), the output end of the motor (5) and the drive shaft (8) are coaxially fixedly connected with a synchronous wheel (25), and a synchronous belt (26) is sleeved on the two synchronous wheels (25).

6. The forage harvester baler wrapper according to claim 5, wherein, A convex ring (27) is coaxially formed on the lower end of the sliding sleeve (22), and a convex ring (28) is coaxially formed on the outer wall of the lower end of the driving shaft (8). A spring (29) is coaxially sleeved on the lower end of the driving shaft (8), and the upper and lower ends of the spring (29) are respectively in contact with the convex ring (27) and the convex ring (28). The cylinder (9) is vertically fixed in the accommodating groove (18). A movable ring (30) is coaxially sleeved on the sliding sleeve (22), and a plane bearing (31) located between the movable ring (30) and the convex ring (27) is embedded at the bottom of the movable ring (30), and the movable ring (30) is fixedly connected to the output end of the cylinder (9) through a connecting rod (32).

7. The forage harvester baler wrapper according to claim 6, wherein A cylindrical platform (33) is coaxially formed on the top of the fixed gear disk (6). There are two sets of locking mechanisms, and the two sets of locking mechanisms are evenly distributed along the circumferential direction of the cylindrical platform (33). Each set of locking mechanisms includes a bracket (34), a movable rod (35) and a locking pin (36). The bracket (34) is vertically fixed in the second receiving groove (18). Two symmetrically arranged fixed shafts (37) are fixedly connected to the upper end of the bracket (34). The axial direction of each fixed shaft (37) is horizontal. The movable rod (35) is horizontal. Circular sleeves (38) sleeved coaxially on the two fixed shafts (37) are formed at both ends of the movable rod (35). A second spring (39) is sleeved on each fixed shaft (37). Both ends of each second spring (39) are respectively abutted against the circular sleeve (38) and the bracket (34). The locking pin (36) is fixedly connected to the movable rod (35), and the locking pin (36) is perpendicular to the movable rod (35). Two lock holes (40) for horizontally inserting the two locking pins (36) respectively are formed on the outer wall of the cylindrical platform (33). One end of each locking pin (36) inserted into the lock hole (40) is round-headed. A first inclined wedge block (41) vertically downward is fixedly arranged on the movable rod (35). Two symmetrically arranged second connecting rods (42) are formed on the movable ring (30). A second inclined wedge block (43) vertically upward is fixedly arranged at one end of each second connecting rod (42), and each first inclined wedge block (41) is matched with the corresponding second inclined wedge block (43).

8. The harvesting baling and wrapping machine according to claim 2, characterized in that, A roller shaft transmission mechanism is arranged between the rotating turntable (3) and the flipping platform (2). The roller shaft transmission mechanism includes a toothed ring (44), bevel gears (45) and a transmission shaft (46). The transmission shaft (46) is horizontally rotatably arranged at the bottom of the rotating turntable (3). The toothed ring (44) is fixedly arranged on the top of the flipping platform (2), and the toothed ring (44) is coaxial with the rotating shaft (4). The bevel gear (45) is coaxially fixedly connected to one end of the transmission shaft (46), and the bevel gear (45) is meshed with the toothed ring (44). Synchronous pulleys II (47) are coaxially fixedly connected to both the transmission shaft (46) and the driving roller (11). A second synchronous belt (48) is sleeved on the two synchronous pulleys II (47).

Images