A crawler self-propelled chain plate fertilizer spreader

Abstract

The present invention discloses a crawler self-propelled chain plate fertilizer spreader, which includes a frame. A fertilizer tank is fixedly arranged on the frame. A hydraulic cycloid motor driven by a walking drive mechanism is further arranged behind the fertilizer tank. The hydraulic cycloid motor is power-connected in cooperation with an input rotating shaft. The shaft end of the input rotating shaft is in transmission connection with a driving roller in cooperation. The input rotating shaft is driven by the hydraulic cycloid motor to rotate and drive the driving roller to act simultaneously. The product of the present invention drives the chain plate fertilizer scraping mechanism and the disc fertilizer spreading mechanism to act and form an associated cooperation through a single hydraulic cycloid motor. A stroke adjusting mechanism is configured to adjust the stroke to control the fertilizer scraping and conveying speed of the chain plate fertilizer scraping mechanism. A hydraulic oil pump and a reversing valve are configured to control the rotation speed of the hydraulic cycloid motor, and an opening degree adjusting mechanism of the discharge port is combined. Therefore, the fertilizer application amount can be effectively adjusted according to the fertilizer requirements of different crops in different fields, achieving the effects of fertilizer saving and pollution reduction. The overall fertilizer spreader has a high degree of automation and excellent applicability.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and particularly to a crawler self-propelled chain plate fertilizer spreader. Background Art

[0002] Organic fertilizers can well improve and fertilize the soil, improve the quality of agricultural products, and reduce environmental pollution. They are good substitutes for reducing the application amount of chemical fertilizers. The application of organic fertilizers is mainly for basal fertilization, and the amount of fertilization is large. It must rely on mechanical spreading to be successfully promoted. For example, manual spreading has problems such as high labor intensity and low efficiency. Especially in the current situation where there is a lack of labor in rural areas, mechanical spreading is particularly important.

[0003] Among them, the spreading equipment for commercial organic fertilizers in the prior art mainly uses disc spreading. For example, a Chinese invention patent with the authorization announcement number CN205755499U, a crawler self-propelled disc fertilizer spreader, discloses a disc fertilizer spreader designed with a disc fertilizer spreading mechanism and a discharge port opening adjustment mechanism, which solves some problems existing in domestic disc fertilizer spreading equipment. However, its chain plate fertilizer scraping mechanism and disc fertilizer spreading mechanism are respectively independently equipped with power motors for driving. Due to different power sources for driving, the amount of fertilizer scraped by the chain plate fertilizer scraping mechanism and the amount that can be effectively spread by the disc fertilizer spreading mechanism during the traveling process still cannot be reasonably controlled. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a crawler self-propelled chain plate fertilizer spreader that can reasonably spread fertilizer by driving the chain plate fertilizer scraping mechanism and the disc fertilizer spreading mechanism to cooperate with each other by one power motor in view of the above-mentioned prior art.

[0005] To achieve the above object, the technical solution of the crawler self-propelled chain plate fertilizer spreader provided by the present invention is as follows: A crawler self-propelled chain plate fertilizer spreader includes a frame. A fertilizer tank is fixedly provided on the frame. A crawler traveling mechanism is provided below the frame and is power-connected to a traveling driving mechanism provided at the front end of the frame. A chain plate fertilizer scraping mechanism driven by a driving roller is provided in the fertilizer tank. A disc fertilizer spreading mechanism driven by an input rotating shaft is provided on the frame behind the fertilizer tank. A discharge port opening adjustment mechanism is provided at the discharge port outside the fertilizer tank. The discharge port opening adjustment mechanism is connected to a liftable baffle at the rear discharge port of the fertilizer tank. A hydraulic cycloid motor driven by the traveling driving mechanism is further provided behind the fertilizer tank. The hydraulic cycloid motor is power-connected to the input rotating shaft in a matching manner. The end of the input rotating shaft is in a matching transmission connection with the driving roller. By driving the input rotating shaft to rotate by the hydraulic cycloid motor and simultaneously driving the driving roller to act, on the basis of the prior art, by providing one hydraulic cycloid motor, a power source can be provided for both the input rotating shaft and the driving roller at the same time, and the action of the driving roller is driven by the rotation of the input rotating shaft to drive, forming an associated cooperative action. Therefore, the actions of the chain plate fertilizer scraping mechanism and the disc fertilizer spreading mechanism can be stably controlled by a matching transmission ratio, and the control of the amount of fertilizer spreading and scraping can be realized.

[0006] As a further solution: A power connection is formed between the output shaft of the hydraulic cycloid motor and the input rotating shaft through chain drive. The input rotating shaft is provided with a rotating shaft sprocket. A poking tooth intermittent transmission mechanism is arranged between the rotating shaft sprocket and the driving roller. The poking tooth intermittent transmission mechanism includes a transmission crank, a connecting pull arm, a first connecting rod, a poking tooth pull rod and a disk gear. One end of the transmission crank is fixedly connected to the rotating shaft sprocket, and the other end is butt-connected to the upper end of the connecting pull arm. The lower end of the connecting pull arm is hinged to the front end of the first connecting rod. The rear end of the first connecting rod is hinged to the upper end of the poking tooth pull rod. The disk gear is fixedly connected to the driving roller. A shaft hole is formed in the lower end of the poking tooth pull rod and is sleeved on the shaft end of the driving roller outside the disk gear. A poking tooth block is hinged in the middle of the poking tooth pull rod. A poking tooth part matching with the disk gear is arranged at the bottom end of the poking tooth block. An elastic resetting part is arranged at the matching end of the poking tooth pull rod. By adopting a poking tooth intermittent transmission mechanism designed with the transmission crank as a rotating cam combined with multiple connecting rods, when the poking tooth pull rod is driven by the rotating shaft sprocket, it drives the poking tooth block matching with the disk gear to move downward, and then drives the disk gear to rotate clockwise along the feeding direction. Then, when the poking tooth pull rod returns with the transmission crank, the poking tooth block disengages from the tooth part of the disk gear, and then is reset by the elastic force of the elastic resetting part, and then is clamped into the tooth part gap of the rear disk gear along with the movement of the poking tooth pull rod, realizing the intermittent transmission of the input rotating shaft relative to the driving roller, so that the chain plate fertilizer scraping mechanism scrapes the fertilizer once and then the disk fertilizer spreading mechanism forms a round of rotating fertilizer spreading, and the situation of continuous fertilizer scraping action resulting in excessive fertilizer spreading will not occur.

[0007] As a further solution: The traveling driving mechanism includes an engine, a hydraulic oil pump and a reversing valve. The hydraulic cycloid motor is butted against the hydraulic oil pump and is driven by the power of the engine, and the hydraulic oil flow rate can be adjusted by adjusting the hydraulic oil pump and the reversing valve to control the rotation speed of the hydraulic cycloid motor.

[0008] As a further solution: The poking tooth pull rod is arranged as a U-shaped sheet metal block. A notch is formed at the matching end of its lower part with the disk gear for the disk gear to rotate, and two side sheets are separated and formed. The two side sheets are butted against both sides of the disk gear. The poking tooth block and the poking tooth pull rod are connected by a poking tooth guide rod to form a hinge. A positioning hole is arranged on the inner end shaft part of the poking tooth guide rod and a positioning screw is arranged in cooperation. A connecting hole is arranged on the end face of the inner sheet of the poking tooth pull rod and a return spring screw is arranged. A return spring is arranged on the inner side shaft end of the poking tooth guide rod. Both ends of the return spring are respectively hooked on the return spring screw and the positioning screw. The arrangement of the poking tooth guide rod and the return spring can facilitate the elastic resetting of the poking tooth block after disengagement.

[0009] As a further solution: A stroke adjustment mechanism is also provided on the fertilizer box, which is connected to the poking tooth intermittent transmission mechanism and can adjust the stroke to control the conveying speed. The stroke adjustment mechanism includes a guiding template, a stroke pull rod, an adjustment connecting rod, a second connecting rod, and a shifting component. The guiding template is arranged at the side end of the fertilizer box, and several horizontally flush guiding tube parts are convexly provided at the upper end. The stroke pull rod is arranged horizontally, and the rear end thereof is fitted and sleeved in the guiding tube part, and the front end head is butt-connected to the shifting component. The shifting component includes an adjustment shift lever and a speed regulation groove plate. The speed regulation groove plate is connected and arranged at the side end of the fertilizer box, and a shifting hole groove for horizontally displacing and limiting the adjustment shift lever for multiple times is opened at the upper end. The adjustment shift lever is butt-connected to the front section of the stroke pull rod, and the upper end extends into the shifting hole groove. An articulated block is provided on the stroke pull rod and is articulated with the upper end of the adjustment connecting rod. The lower end of the adjustment connecting rod is articulated with the front end of the second connecting rod. The rear end of the second connecting rod is articulated at the articulated end of the rear end head of the first connecting rod and the poking tooth pull rod. Adding the stroke adjustment mechanism can form displacement limitation through the adjustment shift lever in the shifting hole groove, drive the forward and backward displacement of the stroke pull rod, and further drive the poking tooth pull rod through the transmission connection of the adjustment connecting rod and the second connecting rod, drive the relative angle adjustment of the poking tooth pull rod, and further affect the angle of a rotation stroke of the poking tooth block, so as to drive the change of the rotation angle of the driving roller and affect the scraping distance of the chain plate fertilizer scraping mechanism.

[0010] As a further solution: The disc fertilizer spreading mechanism includes a fertilizer spreading disc, an output rotating shaft, an input rotating shaft, a steering gear set, an upper fixing plate, and a lower fixing plate. The upper fixing plate and the lower fixing plate are correspondingly connected up and down on the frame at the rear end of the fertilizer box. The input rotating shaft and the output rotating shaft realize transmission steering through the steering gear set. The output rotating shaft is limited and butted between the upper fixing plate and the lower fixing plate. The fertilizer spreading disc is connected and arranged at the lower end of the output rotating shaft. An arc cover plate is further provided at the inner end of the fertilizer spreading disc, and guiding and adjusting plates that can rotate inside and outside are provided on both sides of the outer end opening.

[0011] As a further solution: The number of the fertilizer spreading discs is set to two, and the steering gear set is set to two groups of symmetrically arranged helical gear sets. Each helical gear set is butt-connected to drive an output rotating shaft, and the input rotating shaft drives the two fertilizer spreading discs to rotate in opposite directions. The guiding and adjusting plates are respectively arranged as two outer guiding plates and inner adjusting plates along the two fertilizer spreading discs. The two inner adjusting plates are arc-shaped curved surfaces that slope obliquely inward and upward from bottom to top.

[0012] As a further solution: The outlet opening adjustment mechanism includes a rotating adjustment rod, a positioning connection seat, a guiding transmission plate, and two groups of positioning blocks, adjustment screws, and rotating connection plates symmetrically arranged on both sides of the fertilizer box. The positioning connection seat is arranged at the front end edge of the fertilizer box and is screwed to the rotating adjustment rod. A rotating handle is arranged at the front end of the rotating adjustment rod, and the rear end is cooperatively sleeved with a convex sleeve arranged at the lower end of the guiding transmission plate. The upper end of the guiding transmission plate is fixedly connected to the adjustment screw on one side. The adjustment screws are internally and externally connected to the positioning holes and the rotating connection plates on the corresponding end faces respectively. The rotating connection plates on both sides are fixedly connected to the liftable baffle. The rotation and feeding of the rotating adjustment rod drive the angle change of the adjustment screw, affecting the opening angle of the liftable baffle and controlling the size of the fertilizer box outlet. The overall adjustment of the rotating adjustment rod docking the positioning connection seat is stable and controllable.

[0013] As a further solution: The chain plate fertilizer scraping mechanism includes a conveying chain, multiple chain plates arranged at intervals, a driving roller, and a driven roller. The conveying chain is set as a double-pitch conveying chain. The chain plates are arranged as inverted L-shaped plate bodies in the vertical direction at the rear end of the conveying direction at the lower end of the long end edge and the short end edge, and are evenly welded to the upper end of the conveying chain at intervals. The driving roller and the driven roller are butted at the inner end of the conveying chain, and matching transmission sprockets are arranged on the corresponding matching ends of the driving roller and the driven roller for the conveying chain.

[0014] As a further solution: A remote control module is also arranged on the frame. The remote control module includes a power supply module, a control module, a positioning module, a communication module, a processor module, and a user control terminal. The positioning module receives the real-time position information of the whole machine and sends it to the user control terminal through the communication module. The user control terminal is connected to the processor module, and remote control commands are sent to the control module through the processor module. An electric push rod for operation control is configured in the control module, so that control commands can be realized by controlling the electric push rod. A generator is arranged on the walking drive mechanism. The generator works by being started by an engine arranged inside the walking drive mechanism, and the engine can be started by the energy provided by the power supply module. The setting of the remote control module enables the whole machine to perform fertilizer spreading operations by remote control.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The product of the present invention drives the chain plate fertilizer scraping mechanism and the disc fertilizer spreading mechanism to act by setting a hydraulic cycloid motor, and the input rotating shaft and the driving roller are connected and cooperated by a poking tooth intermittent transmission mechanism. A stroke adjustment mechanism is configured to adjust the stroke to control the fertilizer scraping and conveying speed of the chain plate fertilizer scraping mechanism. A hydraulic oil pump and a reversing valve are configured to control the rotation speed of the hydraulic cycloid motor, and in combination with the outlet opening adjustment mechanism, the fertilizer application amount can be effectively adjusted according to the fertilizer requirements of different crops in different fields, achieving the effect of fertilizer saving and pollution reduction. The overall fertilizer spreader has a high degree of automation and excellent applicability. Description of the Drawings

[0016] Figure 1 Schematic three - dimensional structure of the crawler self - propelled chain - plate fertilizer spreader embodiment of the present invention Figure 1 。

[0017] Figure 2 Schematic three - dimensional structure of the crawler self - propelled chain - plate fertilizer spreader embodiment of the present invention Figure 2 。

[0018] Figure 3 Schematic driving linkage diagram of the chain - plate fertilizer scraping mechanism and the disc fertilizer spreading mechanism of the present invention.

[0019] Figure 4 Schematic structural diagram of the poking - tooth intermittent transmission mechanism of the present invention

[0020] Figure 5 Schematic structural diagram of the stroke adjustment mechanism of the present invention

[0021] Figure 6 Schematic structural diagram of the poking - tooth pull rod and the elastic reset member of the present invention

[0022] Figure 7 Schematic structural diagram of the discharge port opening adjustment mechanism of the present invention

[0023] Figure 8 Schematic structural diagram of the disc fertilizer spreading mechanism of the present invention

[0024] In Figures 1 to 8 : Frame 1, fertilizer tank 2, crawler traveling mechanism 3, traveling drive mechanism 4, chain - plate fertilizer scraping mechanism 5, disc fertilizer spreading mechanism 6, discharge port opening adjustment mechanism 7, hydraulic cycloidal motor 8, poking - tooth intermittent transmission mechanism 9, stroke adjustment mechanism 10, operation control mechanism 11, liftable baffle 21, engine 41, gearbox 42, hydraulic oil pump 43, driving roller 51, driven roller 52, conveyor chain 53, chain plate 54, input rotating shaft 61, output rotating shaft 62, fertilizer spreading disc 63, helical gear set 64, upper fixing plate 65, lower fixing plate 66, arc cover plate 67, outer guide plate 68, inner adjusting plate 69, rotating adjusting rod 71, positioning connection seat 72, guide transmission plate 73, positioning block 75, adjusting screw 74, rotating connection plate 76, power chain 81, shaft sprocket 82, motor sprocket 83, transmission crank 91, connecting pull arm 92, first connecting rod 93, poking - tooth pull rod 94, poking - tooth block 96, poking - tooth part 961, disc gear 95, poking - tooth guide rod 97, positioning screw 98, return spring screw 99, return spring 910, adjusting stop rod 101, speed - regulating groove plate 102, guide template 104, stroke pull rod 103, hinge block 105, adjusting connecting rod 106, second connecting rod 107, guide tube part 108. Detailed implementation manners

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] Referring to Figures 1 to 8 , an embodiment of the present invention: Based on the crawler self-propelled fertilizer spreader in the prior art, an improved crawler self-propelled chain plate fertilizer spreader is designed, which includes a frame 1. A fertilizer box 2 is fixedly arranged on the frame. A crawler traveling mechanism 3 is arranged below the frame and is power-connected to a traveling driving mechanism 4 arranged at the front end of the frame. The fertilizer box is set as a box body with an open part. A chain plate fertilizer scraping mechanism 5 driven by a driving roller 51 is arranged inside. A liftable baffle 21 is arranged at the fertilizer box at the advancing direction end of the chain plate fertilizer scraping mechanism 5 to form a discharge port with the chain plate fertilizer scraping mechanism 5. A disc fertilizer spreading mechanism 6 driven by an input rotating shaft 61 is arranged on the frame behind the fertilizer box. An opening degree adjusting mechanism 7 is arranged at the discharge port outside the fertilizer box. The discharge port opening degree adjusting mechanism 7 is connected to the liftable baffle 21 at the rear end discharge port of the fertilizer box. A hydraulic cycloid motor 8 driven by the traveling driving mechanism is also arranged behind the fertilizer box. The applicant power-connects the hydraulic cycloid motor 8 with the input rotating shaft and sets a power transmission mechanism at the end of the input rotating shaft and the driving roller to form a cooperative transmission connection. The hydraulic cycloid motor 8 drives the input rotating shaft 61 to rotate and simultaneously drives the driving roller 51 to act. On the basis of the prior art, by setting a hydraulic cycloid motor 8, power sources can be provided for the input rotating shaft 61 and the driving roller 51 at the same time. The action of the driving roller 51 is driven by the rotation of the input rotating shaft 61 to drive, forming an associated cooperative action. Therefore, the actions of the chain plate fertilizer scraping mechanism and the disc fertilizer spreading mechanism can be stably controlled with a matching transmission ratio, and the control of the amount of fertilizer spreading and scraping can be realized.

[0027] Among them, the output shaft of the hydraulic cycloid motor 8 in this embodiment is power-connected to the input rotating shaft 61 through chain drive. A power chain 81 is provided. The corresponding input rotating shaft 61 is provided with a rotating shaft sprocket 82 and a motor sprocket 83 is arranged on the motor output shaft. A poking tooth intermittent transmission mechanism 9 is arranged between the rotating shaft sprocket 82 and the driving roller to realize the associated transmission. The poking tooth intermittent transmission mechanism in this embodiment includes a transmission crank 91, a connecting pull arm 92, a first connecting rod 93, a poking tooth pull rod 94 and a disk gear 95, forming a transmission mechanism group combined with a multi-link combined crank cam and poking teeth. One end of the transmission crank 91 is fixedly connected to the rotating shaft sprocket 82, and the other end is connected to the upper end of the connecting pull arm 92. The lower end of the connecting pull arm 92 is hinged to the front end of the first connecting rod 93. The rear end of the first connecting rod 93 is hinged to the upper end of the poking tooth pull rod 94. The disk gear 95 is fixedly connected to the driving roller 51. The lower end of the poking tooth pull rod 94 is provided with a shaft hole sleeved on the shaft end of the driving roller outside the disk gear. In addition, a poking tooth block 96 is hinged in the middle of the poking tooth pull rod 94. The bottom end of the poking tooth block is provided with a poking tooth part 961 that cooperates with the disk gear. The matching end of the poking tooth pull rod 94 is also provided with an elastic reset member to elastically reset the poking tooth block when it is separated from the end of the disk gear. Among them, by adopting a poking tooth intermittent transmission mechanism with the transmission crank 91 as a rotating cam and combining multiple connecting rods such as the connecting pull arm 92, the first connecting rod 93 and the poking tooth pull rod 94, the hydraulic cycloid motor 8 drives the rotating shaft sprocket 82 to rotate. The rotating shaft sprocket 82 drives the input rotating shaft 61 to rotate. At the same time, the transmission crank 91 at the outer end of the rotating shaft sprocket 82 also rotates with the rotating shaft sprocket 82. Then, the associated poking tooth pull rod 94 forms an angular swing along the circumference of the disk gear with the rotation angle of the rotating shaft sprocket 82, driving the poking tooth block 96 that cooperates with the disk gear 95 to swing along the circumference of the disk gear. Because the poking tooth block 96 fits with the tooth part of the disk gear, it will drive the disk gear 95 to rotate clockwise along the feeding direction. With the movement of the rotating shaft sprocket 82, the transmission crank 91 moves upward, driving the poking tooth pull rod 94 to return with the transmission crank. Then, the poking tooth block 96 disengages from the tooth part of the disk gear and is elastically reset by the elastic force of the elastic reset member. Then, it is inserted into the tooth gap of the rear disk gear with the next rotation stroke of the poking tooth pull rod 94, realizing the intermittent transmission of the input rotating shaft relative to the driving roller, so that the chain plate fertilizer scraping mechanism scrapes the fertilizer once and then the disk fertilizer spreading mechanism forms a round of rotating fertilizer spreading, and the situation of continuous fertilizer scraping action resulting in excessive fertilizer spreading will not occur.Among them, the pick tooth pull rod 94 in this embodiment is set as a U-shaped sheet metal block. A notch is provided at the end of its lower part that cooperates with the disk gear for the disk gear to rotate, and it is separated to form two side plates. The two side plates are cooperatively butted on both sides of the disk gear 95. The pick tooth block 96 and the pick tooth pull rod 94 are connected by a pick tooth guide rod 97 to form a hinge. A positioning hole is provided on the inner end shaft part of the pick tooth guide rod 97 and a positioning screw 98 is cooperatively arranged. A connection hole is provided on the end face of the inner sheet body of the pick tooth pull rod and a return spring 99 is arranged. A return spring 910 is arranged on the inner shaft end of the pick tooth guide rod. The two ends of the return spring 910 are respectively hooked on the return spring 99 and the positioning screw 98. The arrangement of the pick tooth guide rod and the return spring can facilitate the elastic reset of the pick tooth block under the action of the elastic force after it disengages from the tooth part of the disk gear, and fit when the pick tooth part is caught in the rear tooth part of the disk gear during the subsequent return stroke to provide the driving action stroke for the next round of the driving roller.

[0028] Moreover, a stroke adjustment mechanism 10 is further provided on the fertilizer box 2 in this embodiment. The stroke adjustment mechanism 10 is connected to the pick tooth intermittent transmission mechanism 9 and can adjust the stroke to control the conveying speed. The stroke adjustment mechanism includes a guide template 104, a stroke pull rod 103, an adjustment link 106, a second link 107 and a shifting component. The guide template 104 is arranged at the side end of the fertilizer box. A plurality of horizontally flush guide tube parts 105 are provided on the upper end protrusion. The stroke pull rod 103 is a long rod body arranged in the horizontal direction. The end of its rear part is cooperatively sleeved in the guide tube part and can displace back and forth along the guide tube. The front end is butt-connected to the shifting component. The shifting component includes an adjustment shift lever 101 and a speed adjustment groove plate 102. The speed adjustment groove plate 102 is fixedly arranged at the side end of the fertilizer box. A shifting hole groove is provided on the upper end for the adjustment shift lever 101 to perform multiple displacements and limit positions in the horizontal direction. The bottom end of the adjustment shift lever 101 is hinged to the speed adjustment groove plate 102. The middle part is cooperatively butted with the front section of the stroke pull rod 103. The upper end extends into the shifting hole groove. An articulated block 105 is arranged on the stroke pull rod 103 and forms a hinge with the upper end of the adjustment link 106. The lower end of the adjustment link 106 is hinged to the front end of the second link 107. The rear end of the second link 107 is hinged to the articulated end of the rear end of the first link and the pick tooth pull rod 94. Adding the stroke adjustment mechanism can form displacement limits through the adjustment shift lever in the shifting hole groove, drive the forward and backward displacement of the stroke pull rod, and then drive the pick tooth pull rod through the transmission connection of the adjustment link and the second link, drive the angle adjustment of the stroke of the pick tooth pull rod relative to the disk gear, and further affect the angle of a rotation stroke of the pick tooth block, so that the rotation angle of the driving roller is changed to affect the scraping distance of the chain plate fertilizer scraping mechanism.

[0029] In addition, the disk fertilizer spreading mechanism 6 in this embodiment includes a fertilizer spreading disk 63, an output rotating shaft 62, an input rotating shaft 61, a steering gear set, an upper fixing plate 65 and a lower fixing plate 66. The upper fixing plate 65 and the lower fixing plate 66 are correspondingly connected up and down to the frame at the rear end of the fertilizer tank. The input rotating shaft 61 and the output rotating shaft 62 realize transmission steering through the steering gear set. The output rotating shaft 62 is limited and docked between the upper fixing plate and the lower fixing plate. The fertilizer spreading disk 63 is connected to the lower end of the output rotating shaft and docked at the lower end position of the corresponding discharge port of the chain plate fertilizer scraping mechanism. A plurality of spreading blades are evenly arranged along the circumference of the shaft end of the output rotating shaft 62. An arc cover plate 67 is also arranged at the inner end of the fertilizer spreading disk, and guide adjusting plates that can rotate inside and outside are arranged on both sides of the outer end opening. In addition, the number of the fertilizer spreading disks 63 in this embodiment is set to two, symmetrically arranged on the upper end of the lower fixing plate 66. The steering gear set is set to two groups of symmetrically arranged helical gear sets 64. Each helical gear set drives an output rotating shaft in a docking manner. Thus, the input rotating shaft drives the two fertilizer spreading disks to rotate in opposite directions. In this embodiment, the guide adjusting plates are respectively arranged as two outer guide plates 68 and inner adjusting plates 69 along the two fertilizer spreading disks. The two inner adjusting plates 69 are in an arc-shaped curved surface that slopes obliquely inward and upward from bottom to top. The outer guide plate 68 is connected to the end of the frame. A rotating limit plate and a matching rotating groove are arranged at the rear end for the outer guide plate to rotate and adjust the width of the spreading opening. The inner end is adjusted by the inner adjusting plate 69.

[0030] The traveling driving mechanism of this embodiment includes an engine 41, a gearbox 42, a hydraulic oil pump 43 and a reversing valve (not marked in the attached drawing, docked to the hydraulic oil pump and the hydraulic cycloid motor). The hydraulic cycloid motor 8 is docked to the hydraulic oil pump and driven by the power of the engine. The hydraulic oil pump and the reversing valve can be adjusted to control the hydraulic flow rate to realize the control of the rotational speed of the hydraulic cycloid motor. In this embodiment, the rotational speed of the hydraulic cycloid motor is controlled by adjusting the hydraulic oil pump to control the fertilizer spreading amount.

[0031] In addition, the discharge port opening degree adjusting mechanism 7 in this embodiment includes a rotating adjusting rod 71, a positioning connecting seat 72, a guiding transmission plate 73, and two groups of positioning blocks 75, adjusting screws 74, and rotating connecting plates 76 symmetrically arranged on both sides of the fertilizer tank. The positioning connecting seat 72 is arranged at the front end edge of the fertilizer tank and is screwed to the rotating adjusting rod 71. A rotating handle is arranged at the front end of the rotating adjusting rod, and the rear end is cooperatively sleeved with a convex sleeve arranged at the lower end of the guiding transmission plate 73. The upper end of the guiding transmission plate 73 is fixedly connected to the adjusting screw 74 on one side. The adjusting screws 74 are respectively connected inside and outside to the corresponding positioning holes and the rotating connecting plates 76. The rotating connecting plates 76 on both sides are fixedly connected to the liftable baffle 21. The rotation and feeding of the rotating adjusting rod drive the angle change of the adjusting screw, affecting the opening angle of the liftable baffle and controlling the size of the fertilizer tank outlet. The overall adjustment of the rotating adjusting rod docking the positioning connecting seat is stable and controllable, providing the user with the function of adjusting the size of the discharge opening and further improving the control method of the fertilizer spreading amount.

[0032] In addition, in this embodiment, the chain plate fertilizer scraping mechanism 5 includes a conveying chain 53, multiple chain plates 54 arranged at intervals, a driving roller 51 and a driven roller 52. The conveying chain 53 is set as a double-pitch conveying chain. The chain plate 54 is arranged as an inverted L-shaped plate body with the lower end at the long side and the rear end in the conveying direction at the short side in the vertical direction. Each piece is evenly welded to the upper end of the conveying chain at intervals in a ring shape. The driving roller 51 and the driven roller 52 are butted at the inner end of the conveying chain. Matching transmission sprockets are provided on the corresponding mating ends of the driving roller and the driven roller with the conveying chain. The inverted L-shaped plate body of the chain plate 54 can facilitate the fertilizer to be smoothly introduced into the fertilizer spreading disc 63 when each chain plate 54 moves downward along the conveying chain 53 during the movement driven by the driving roller, which is convenient for spreading.

[0033] In addition, an operation control mechanism 11 for controlling the whole machine is also provided on the frame, and a remote control module (not marked in the drawings) can be set on the basis of the operation control mechanism 11. The remote control module can be integrally provided with a power supply module, a control module, a positioning module, a communication module, a processor module and a user control terminal. The user control terminal can be set as a hardware terminal with a control software program, and can be set as a mobile terminal and a PC device. The positioning module receives the real-time position information of the whole machine and sends it to the user control terminal through the communication module. The user control terminal is connected to the processor module, and a remote control command is sent to the control module through the processor module. The control module is provided with a plurality of electric push rods that can be electrically controlled to act. The electric push rods can act according to the remote control command to operate the machine body. A generator is provided on the traveling drive mechanism. The generator works by being started by an engine provided in the traveling drive mechanism. The engine can be started by the power supply module to provide energy. The setting of the remote control module enables the whole machine to perform fertilizer spreading operations by remote control.

[0034] The principle of the present invention is as follows: During the process of traveling and spreading fertilizer, the crawler self-propelled chain plate fertilizer spreader of the present invention is driven by the traveling drive mechanism 4 to drive the crawler traveling mechanism 3 to move forward. The engine 41 in the traveling drive mechanism 4 drives the hydraulic cycloid motor 8 to act through the hydraulic oil pump 43, thereby driving the input rotating shaft 61 to rotate through the power chain 81. Furthermore, the fertilizer spreading disc 63 throws the fertilizer outward. The power of the hydraulic cycloid motor 8 can be associated and transmitted to the driving roller 51 at the end of the chain plate fertilizer scraping mechanism 5 through the set poking tooth intermittent transmission mechanism 9, and then intermittently cooperate to drive the chain plate fertilizer scraping mechanism 5 to feed downward to scrape the fertilizer. Due to the setting of the poking tooth intermittent transmission mechanism 9, the feeding of the chain plate fertilizer scraping mechanism 5 is in an intermittent state, and the amount of fertilizer scraped each time is effectively controlled, so that the fertilizer scraped off at one time can be evenly thrown outward according to the rotation of the fertilizer spreading disc. In addition, a stroke adjustment mechanism 10 is also provided on the fertilizer tank 2, which is connected to the poking tooth intermittent transmission mechanism 9 and can adjust the stroke to control the conveying speed, and is equipped with an outlet opening adjustment mechanism 7 to adjust the opening size of the outlet to control the amount of fertilizer discharged during fertilizer scraping. The product of the present invention realizes multiple control methods, such as combining the engine, hydraulic oil pump and reversing valve to control the rotation speed of the hydraulic swing motor, the stroke adjustment mechanism 10 to adjust the stroke of the rubbing tooth connecting rod to control the conveying speed, and the outlet opening adjustment mechanism 7 to adjust the opening size of the outlet, to effectively and orderly control the fertilizer spreading amount. Thus, the fertilizer application amount can be effectively adjusted according to the fertilizer requirements of different fields and different crops, achieving the effect of fertilizer saving and pollution reduction. The overall fertilizer spreader has a high degree of automation and excellent applicability.

[0035] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A crawler self-propelled chain plate fertilizer spreader, comprising a frame, on which a fertilizer tank is fixedly arranged. A crawler traveling mechanism is arranged below the frame and is power-connected to a traveling driving mechanism arranged at the front end of the frame; a chain plate fertilizer scraping mechanism driven by a driving roller is arranged in the fertilizer tank, a disc fertilizer spreading mechanism driven by an input rotating shaft is arranged on the frame behind the fertilizer tank, an opening degree adjusting mechanism is arranged at the discharge port outside the fertilizer tank, and the opening degree adjusting mechanism of the discharge port is connected to a liftable baffle at the rear end discharge port of the fertilizer tank, and it is characterized in that: Behind the fertilizer box, there is also a hydraulic cycloid motor driven by a walking drive mechanism. The hydraulic cycloid motor is power-connected with an input rotating shaft in a matching manner. The end of the input rotating shaft is in a matching transmission connection with the driving roller. The hydraulic cycloid motor drives the input rotating shaft to rotate and simultaneously drives the driving roller to act. A power connection is formed between the output shaft of the hydraulic cycloid motor and the input rotating shaft through chain drive. A rotating shaft sprocket is arranged on the input rotating shaft in a matching manner. A poking tooth intermittent transmission mechanism is arranged between the rotating shaft sprocket and the driving roller. The poking tooth intermittent transmission mechanism includes a transmission crank, a connecting pull arm, a first connecting rod, a poking tooth pull rod, and a disk gear. One end of the transmission crank is fixedly connected to the rotating shaft sprocket, and the other end is butt-connected to the upper end of the connecting pull arm. The lower end of the connecting pull arm is hinged to the front end of the first connecting rod. The rear end of the first connecting rod is hinged to the upper end of the poking tooth pull rod. The disk gear is fixedly connected to the driving roller. A shaft hole is opened at the lower end of the poking tooth pull rod and sleeved on the shaft end of the driving roller outside the disk gear. A poking tooth block is hinged in the middle of the poking tooth pull rod. A poking tooth part matching with the disk gear is arranged at the bottom end of the poking tooth block. An elastic resetting part is arranged at the matching end of the poking tooth pull rod. The walking drive mechanism includes an engine, a hydraulic oil pump, and a reversing valve. The hydraulic cycloid motor is butted against the hydraulic oil pump and is driven by the engine. The hydraulic oil pump and the reversing valve can be adjusted to control the hydraulic flow rate to realize the control of the rotation speed of the hydraulic cycloid motor. The poking tooth pull rod is arranged as a U-shaped sheet metal block. A notch is opened at the lower end of the poking tooth pull rod at the matching end with the disk gear for the disk gear to rotate, and two side sheet bodies are separated. The two side sheet bodies are butted against both sides of the disk gear. The poking tooth block and the poking tooth pull rod are connected by a poking tooth guide rod to form a hinge. A positioning hole is arranged on the inner end shaft part of the poking tooth guide rod and a positioning screw is arranged in a matching manner. A connecting hole is arranged on the end face of the inner sheet body of the poking tooth pull rod and a return spring screw is arranged. A return spring is arranged on the inner side shaft end of the poking tooth guide rod. The two ends of the return spring are respectively hooked on the return spring screw and the positioning screw.

2. The crawler self-propelled chain plate fertilizer spreader according to claim 1, characterized in that: On the fertilizer box, there is also a stroke adjustment mechanism connected to the poking tooth intermittent transmission mechanism and can adjust the stroke to control the conveying speed. The stroke adjustment mechanism includes a guiding template, a stroke pull rod, an adjusting connecting rod, a second connecting rod, and a shifting component. The guiding template is arranged at the side end of the fertilizer box. A plurality of horizontally flush guiding pipe parts are convexly arranged at the upper end. The stroke pull rod is arranged horizontally. The rear end of the stroke pull rod is sleeved in the guiding pipe part in a matching manner. The front end is butted and connected to the shifting component. The shifting component includes an adjusting shift lever and a speed adjustment groove plate. The speed adjustment groove plate is connected and arranged at the side end of the fertilizer box. A shifting hole groove is opened at the upper end for the adjusting shift lever to be horizontally displaced and limited for multiple times. The adjusting shift lever is butted against the front section of the stroke pull rod, and the upper end extends into the shifting hole groove. An articulated block is arranged on the stroke pull rod and is hinged to the upper end of the adjusting connecting rod. The lower end of the adjusting connecting rod is hinged to the front end of the second connecting rod. The rear end of the second connecting rod is hinged to the hinged end between the rear end of the first connecting rod and the poking tooth pull rod.

3. The crawler self-propelled chain plate fertilizer spreader according to claim 2, characterized in that: The disc fertilizer spreading mechanism includes a fertilizer spreading disc, an output rotating shaft, an input rotating shaft, a steering gear set, an upper fixing plate and a lower fixing plate. The upper fixing plate and the lower fixing plate are correspondingly connected up and down on the frame at the rear end of the fertilizer tank. The input rotating shaft and the output rotating shaft achieve transmission steering through the steering gear set. The output rotating shaft is limited and docked between the upper fixing plate and the lower fixing plate. The fertilizer spreading disc is connected and arranged at the lower end of the output rotating shaft. An arc cover plate is also arranged at the inner end of the fertilizer spreading disc, and guide adjusting plates that can rotate inside and outside are arranged on both sides of the outer end opening.

4. A crawler self-propelled chain plate fertilizer spreader according to claim 3, characterized in that: The number of the fertilizer spreading discs is set to two. The steering gear set is set to two groups of symmetrically arranged helical gear sets. Each helical gear set docks and drives an output rotating shaft. The input rotating shaft drives the two fertilizer spreading discs to rotate in opposite directions. The guide adjusting plates are respectively arranged as two outer guide plates and inner adjusting plates along the two fertilizer spreading discs. The two inner adjusting plates are in an arc-shaped curved surface that slopes obliquely inward and upward from the bottom.

5. The crawler self-propelled chain plate fertilizer spreader according to claim 3, characterized in that: The opening degree adjusting mechanism of the discharge port includes a rotating adjusting rod, a positioning connecting seat, a guide transmission plate, and two groups of positioning blocks, adjusting screws, and rotating connecting plates symmetrically arranged on both sides of the fertilizer tank. The positioning connecting seat is arranged at the front end edge of the fertilizer tank and is screwed with the rotating adjusting rod. A rotating handle is arranged at the front end of the rotating adjusting rod, and the rear end is cooperatively sleeved with a convex sleeve arranged at the lower end of the guide transmission plate. The upper end of the guide transmission plate is fixedly connected to one side of the adjusting screw. The adjusting screw is respectively connected inside and outside to the positioning hole and the rotating connecting plate on the corresponding end face. The rotating connecting plates on both sides are connected and fixed to the liftable baffle.

6. The crawler self-propelled chain plate fertilizer spreader according to claim 2, wherein: The chain plate fertilizer scraping mechanism includes a conveying chain, multiple chain plates arranged at intervals, a driving roller, and a driven roller. The conveying chain is set as a double-pitch conveying chain. Corresponding driving sprockets are arranged on the matching ends of the driving roller and the driven roller. The chain plates are arranged as inverted L-shaped plate bodies in the vertical direction at the rear end of the conveying direction at the lower end of the long end edge and the short end edge, and are evenly welded at intervals on the upper end of the conveying chain. The driving roller and the driven roller are docked at the inner end of the conveying chain.

7. A crawler self-propelled chain plate fertilizer spreader according to any one of claims 1-6, characterized in that: A remote control module is also arranged on the frame. The remote control module includes a power supply module, a control module, a positioning module, a communication module, a processor module, and a user control terminal. The positioning module receives the real-time position information of the whole machine and sends it to the user control terminal through the communication module. The user control terminal is connected to the processor module and sends a remote control command to the control module through the processor module. An electric push rod for operation control is configured in the control module, and then the control command can be realized by controlling the electric push rod. A generator is arranged on the traveling driving mechanism. The generator works by being started by an engine arranged inside the traveling driving mechanism, and the engine can be started by the power supply module providing energy.

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