A reversing mechanism and right-angle reversing box ditch self-leveling type press hole lander

Abstract

The utility model relates to a kind of reversing mechanisms, it includes support pedestal, main linear lifting unit, center vertical shaft, fixed gear and reversing assembly;Main linear lifting unit is set on support pedestal;Center vertical shaft is fixedly set on support pedestal;Fixed gear is set on center vertical shaft;Reversing assembly is used to be connected with vehicle, and reversing assembly is connected on main linear lifting unit, and rotating gear matched with fixed gear is provided in reversing assembly;Main linear lifting unit can drive reversing assembly to lift, to make rotating gear and fixed gear engage;Rotating gear can rotate around fixed gear circumferentially, to drive reversing assembly to reverse direction.Simultaneously, a kind of right-angle reversing box ditch self-leveling type compression row-hole land leveler is also provided.Compared with prior art, the reversing mechanism of the utility model can realize vehicle original place steering, and the right-angle reversing box ditch self-leveling type compression row-hole land leveler can fully utilize land area's standard compartment ditch ridge land leveling.

Description

Technical Field

[0001] This utility model relates to the field of vehicle reversing technology, and in particular to a reversing mechanism and a right-angle reversing box trench self-leveling compactor. Background Technology

[0002] Vehicles are common means of transportation on land. Based on their application scenarios, vehicles can be further divided into different types, such as passenger vehicles and agricultural vehicles. Different types of vehicles can meet people's different needs and facilitate their production and life.

[0003] Currently, conventional vehicles use wheeled drive systems, while some vehicles employ tracked or other transmission methods to achieve propulsion. When steering, vehicles typically rely on the wheels; the driver turns the steering wheel, causing the front wheels to rotate at a certain angle. However, this steering method's turning angle and radius are affected by factors such as the vehicle's wheelbase and track width, resulting in a generally large turning radius. This limitation hinders the use of certain functional vehicles and may even prevent steering in narrow areas.

[0004] For example, existing passenger vehicles usually rely on the front wheel assembly for steering. When encountering traffic congestion or other situations, if it is necessary to turn or make a U-turn, there must be a certain amount of space around the passenger vehicle to achieve the turn or U-turn, which is very inconvenient.

[0005] A tillage machine is an agricultural vehicle that can simultaneously perform multiple tasks such as rotary tillage, deep loosening, ridging, and leveling (compacting), resulting in high work efficiency. When operating in a field, a tillage machine typically follows a serpentine reciprocating motion to complete the work across the entire field. When the vehicle moves from one side of the field to the other, it needs to make a sharp turn to facilitate the back-and-forth movement. However, existing tillage machines rely on wheel sets for steering, resulting in a large turning radius. This can damage already tilled land during turns, and steering is inconvenient. Utility Model Content

[0006] Existing vehicle steering technologies use wheel sets, which result in a large turning radius and inconvenient steering.

[0007] This invention addresses a technical limitation in certain application scenarios. It provides a reversing mechanism that lifts the entire vehicle off the ground and allows it to rotate, enabling in-situ steering. This results in more flexible and convenient steering, better meeting the steering needs of vehicles in different usage scenarios.

[0008] A reversing mechanism includes a support base, a main linear lifting unit, a central vertical shaft, a fixed gear, and a reversing assembly.

[0009] The main linear lifting unit is mounted on the support base;

[0010] The central vertical shaft is fixedly mounted on the support base;

[0011] The fixed gear is mounted on the central vertical shaft;

[0012] The reversing assembly is used to connect to the vehicle and is connected to the main linear lifting unit. The reversing assembly is provided with a rotating gear that matches the fixed gear.

[0013] The main linear lifting unit can drive the reversing component to rise and fall, so that the rotating gear meshes with the fixed gear; the rotating gear can rotate circumferentially around the fixed gear, so as to drive the reversing component to change direction.

[0014] Preferably, the central vertical shaft is coaxially and parallel to the main linear lifting unit;

[0015] The main linear lifting unit includes a lifting cylinder body and a hollow tubular plunger disposed in the lifting cylinder body;

[0016] The central vertical shaft passes through the central through hole of the tubular plunger, and the bottom of the central vertical shaft is connected to the support base. The fixed gear is located at the upper end of the central vertical shaft.

[0017] The reversing assembly is connected to the tubular plunger.

[0018] Preferably, it also includes a support base lifting sub-linear lifting unit, which is connected to the support base and the vehicle respectively.

[0019] Preferably, the linear lifting unit of the support base is connected to the support base via a turntable, and the turntable is rotatably connected to the support base.

[0020] Preferably, it also includes a connecting frame plate, upper and lower vertical sliding rods, and a cross link;

[0021] The connecting frame plate is located outside the main linear lifting unit;

[0022] The vertical sliding rods are arranged parallel to the central vertical axis;

[0023] The two ends of the horizontal connecting rod are respectively connected to the connecting frame plate and the upper and lower vertical sliding rods;

[0024] The vehicle is equipped with a vertical guide opening sleeve, and the upper and lower vertical sliding rods are slidably disposed in the vertical guide opening sleeve.

[0025] Preferably, the connecting frame plate has a mounting through hole, and the support base lifting pair linear lifting unit is movably installed in the mounting through hole on the connecting frame plate.

[0026] Preferably, a first position detection sensor is provided on the vehicle, and a top plate is provided on the cross link, the top plate being configured corresponding to the first position detection sensor;

[0027] The first position detection sensor is used to detect the position of the top plate in order to control the operating status of the linear lifting unit of the support seat lifting pair.

[0028] Preferably, the support base is provided with an angle correction positioning rod;

[0029] The vehicle is equipped with an angle correction positioning plate, which has a positioning groove that matches the angle correction positioning rod. The end of the angle correction positioning plate has a guide opening that communicates with the positioning groove. The guide opening faces the angle correction positioning rod and is used to guide and correct the position of the angle correction positioning rod.

[0030] Preferably, it also includes a positioning and fixing flange, which is fixedly mounted on the central vertical shaft and located on the upper side of the fixing gear;

[0031] The vehicle is equipped with a second position detection sensor assembly, which includes a second position detection sensor and an elastic pressure plate disposed on the top of the second position detection sensor;

[0032] The positioning and fixing flange is set in relation to the second position detection sensor. The top of the positioning and fixing flange is provided with a pressing part. The pressing part presses down on the elastic pressure plate so that the elastic pressure plate presses the second position detection sensor to control the operating state of the main linear lifting unit.

[0033] Preferably, the circumferential surface of the positioning and fixing flange is provided with a movable circular protrusion, which is used to push outward the second position detection sensor assembly so that the elastic pressure plate is separated from the extrusion part;

[0034] Furthermore, the circular protrusion is also used to control the engagement and disengagement of the power source of the rotating gear.

[0035] Preferably, the reversing assembly further includes a first drive shaft and a bevel gear assembly;

[0036] The first drive shaft is connected to the rotating gear, and a first bevel gear is provided on the first drive shaft;

[0037] The bevel gear assembly is provided with a second drive shaft, a second bevel gear, and a third bevel gear, the second bevel gear and the third bevel gear respectively meshing with the first bevel gear; the second drive shaft has the second bevel gear and the third bevel gear arranged in opposite directions at both ends, and the ends of the second drive shaft are respectively provided with clutch structures;

[0038] The vehicle is equipped with a power input shaft and a dual-control clutch mechanism;

[0039] The power input shafts are respectively provided on the outer sides of the ends of the second drive shaft, and each power input shaft is provided with a clutch pawl that matches the clutch structure at its end;

[0040] The linked dual-control clutch mechanism is connected to the two power input shafts to drive the power input shafts to move, thereby controlling the engagement and disengagement of the clutch pawl and the clutch structure.

[0041] Preferably, the linkage dual-control clutch mechanism is a vertical oblique sliding structure, and the linkage dual-control clutch mechanism includes a handle, a shift fork push rod, a first shift fork, and a second shift fork;

[0042] One end of the shift fork push rod is fixedly connected to the slide rod in the reversing groove provided at the lower part of the handle, and the reversing groove is inclined relative to the axis of the shift fork push rod.

[0043] The first shift fork and the second shift fork are respectively disposed on the shift fork push rod, and the first shift fork is connected to one of the power input shafts, and the second shift fork is connected to another power input shaft;

[0044] When the handle slides up and down, the slide rod slides along the reversing groove to drive the shift fork push rod to move left and right along its axis, thereby driving the power input shaft to move and control the engagement and disengagement of the clutch pawl and the clutch structure.

[0045] A right-angle reversing box trench self-leveling compaction pit land leveling machine includes a land leveling machine body and a reversing mechanism as described in any one of the above descriptions. The reversing mechanism is disposed on the land leveling machine body, and the reversing assembly is connected to the land leveling machine body.

[0046] The main body of the land preparation machine is also equipped with a rotary tillage mechanism, a ditching mechanism, a leveling mechanism, and a pressing hole mechanism.

[0047] Preferably, the rotary tillage mechanism, the leveling mechanism, and the row-pressing hole mechanism are sequentially arranged at the front, middle, and rear of the bottom surface of the main body of the tillage machine, and the ditching mechanism is arranged at the bottom of the middle of both sides of the main body of the tillage machine.

[0048] Preferably, the rotary tillage mechanism includes a rotary tillage shaft and furrow rotary tillage wheels and bed rotary tillage wheels disposed on the rotary tillage shaft, wherein the diameter of the furrow rotary tillage wheel is larger than the diameter of the bed rotary tillage wheel;

[0049] The furrowing mechanism is located behind the rotary tiller of the furrow.

[0050] Preferably, two trenching mechanisms are provided, and both trenching mechanisms are grooved reverse scoop-shaped structures. The end face of the small end of each trenching mechanism is closed, and the large end of each trenching mechanism is open. The closed end of the small end of each trenching mechanism is respectively hinged to the bottom of both sides of the main body of the land leveling machine, and the trenching mechanism is inclinedly arranged on the bottom of both sides of the main body of the land leveling machine. A waist-shaped positioning groove is provided on one side wall of the large end of each trenching mechanism. A screw passes through the waist-shaped positioning groove to install the trenching mechanism on the main body of the land leveling machine. The waist-shaped positioning groove is arranged in the vertical direction. A notch is provided on one side wall of the closed end of each groove, and the notch matches the position of the leveling mechanism.

[0051] Preferably, the leveling mechanism is a double-opposing spiral leveling wheel, and the diameters of the spiral wheels at both ends of the double-opposing spiral leveling wheel are the same.

[0052] Preferably, the acupressure mechanism includes an acupressure shaft and an acupressure assembly;

[0053] Multiple acupressure components are provided, and the multiple acupressure components are sequentially arranged on the acupressure axis along the acupressure axis.

[0054] The acupressure assembly includes a pressure roller and an acupressure head. The pressure roller is disposed on the acupressure shaft, and the position between adjacent pressure rollers is adjustable. Multiple acupressure heads are sequentially disposed on the outer circumference of each pressure roller, and the radial position of the acupressure heads on the same pressure roller is adjustable.

[0055] Preferably, the main body of the land preparation machine is further provided with a double-acting guide control mechanism, which is located at the front of the main body of the land preparation machine;

[0056] The bottom of the double-acting guide mechanism is provided with a guide wheel, and the double-acting guide mechanism is also provided with a guide wheel lifting unit for controlling the lifting and lowering of the guide wheel.

[0057] Preferably, the main body of the land preparation machine is also provided with a drive wheel clutch mechanism and a hydraulic transmission shaft clutch mechanism;

[0058] The drive wheel clutch mechanism is used to control the engagement and disengagement of the drive wheel;

[0059] The hydraulic drive shaft clutch mechanism is used to control the engagement and disengagement of the hydraulic drive shaft;

[0060] Both the drive wheel clutch mechanism and the hydraulic transmission shaft clutch mechanism adopt a vertical oblique sliding structure.

[0061] Compared with the prior art, the present invention provides a reversing mechanism, which includes a support base, a main linear lifting unit, a central vertical shaft, a fixed gear, and a reversing assembly; the main linear lifting unit is disposed on the support base; the central vertical shaft is fixedly disposed on the support base; the fixed gear is disposed on the central vertical shaft; the reversing assembly is used to connect to a vehicle and is connected to the main linear lifting unit, and the reversing assembly is provided with a rotating gear that matches the fixed gear; the main linear lifting unit can drive the reversing assembly to rise and fall, so that the rotating gear meshes with the fixed gear; the rotating gear can rotate circumferentially around the fixed gear, so as to drive the reversing assembly to reverse direction. The reversing mechanism includes the main linear lifting unit and the reversing assembly. The main linear lifting unit can drive the reversing assembly to rise and fall. The reversing assembly is connected to the vehicle, so that the main linear lifting unit can drive the entire vehicle to rise and fall, allowing the vehicle to leave the ground. The rotating gear in the reversing assembly can rotate around the fixed gear, thereby synchronously driving the vehicle to rotate, realizing the vehicle's turning on the spot. The steering is more flexible and convenient, and can better meet the steering needs of the vehicle in different usage scenarios. Attached Figure Description

[0062] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0063] Figure 1 A three-dimensional structural schematic diagram of a reversing mechanism provided in one embodiment;

[0064] Figure 2 A cross-sectional structural schematic diagram of a reversing mechanism provided in one embodiment;

[0065] Figure 3 for Figure 1 A three-dimensional structural schematic diagram of some components of the reversing mechanism shown;

[0066] Figure 4 for Figure 3 A cross-sectional structural diagram of the structure shown.

[0067] Figure 5This is a schematic diagram of the structure of a fixed gear and a positioning flange applied to a vehicle in one embodiment. Figure 13 (A magnified view of area A shown).

[0068] Figure 6 A three-dimensional structural diagram of a positioning and fixing flange provided in one embodiment;

[0069] Figure 7 A three-dimensional structural diagram of a push rod, a push plate, and a second position detection sensor assembly provided in one embodiment;

[0070] Figure 8 This is a schematic diagram of the structure of components such as a commutation assembly and a linked dual-control clutch mechanism provided in one embodiment;

[0071] Figure 9 This is a schematic diagram of the structure of components such as a connecting frame plate, a cross link, a top plate, and a first position detection sensor provided in one embodiment;

[0072] Figure 10 A top view of the connecting frame plate and crossbar provided in one embodiment;

[0073] Figure 11 A three-dimensional structural diagram of a support base provided in one embodiment;

[0074] Figure 12 A schematic diagram of the planar structure of an angle correction positioning plate provided in one embodiment;

[0075] Figure 13 A three-dimensional structural diagram of a land leveling machine provided in one embodiment;

[0076] Figure 14 for Figure 13 The diagram shows the structure of the land leveling machine when its main body is raised.

[0077] Figure 15 for Figure 13 The diagram shows a structural schematic of some mechanisms in the land leveling machine.

[0078] Figure 16 for Figure 13 A three-dimensional structural diagram of the double-acting guide control mechanism in the land leveling machine shown;

[0079] Figure 17 for Figure 13 A schematic diagram of the structure of the solenoid valve and hydraulic transmission shaft in the land leveling machine shown.

[0080] Figure 18 for Figure 13 The electrical schematic diagram of the ground leveling machine is shown below;

[0081] Figure 19 for Figure 13 The electrical schematic diagram of the ground leveling machine is shown below;

[0082] Figure 20 for Figure 13 The diagram shows the hydraulic principle of the land leveling machine.

[0083] Explanation of reference numerals in the attached figures:

[0084] 1000 Right-angle reversing box trench self-leveling compactor;

[0085] The following components are included: main body of the land leveling machine 10, U-shaped frame fixed plate 11, vertical guide opening sliding sleeve 12, first position detection sensor 13, angle correction positioning plate 14, positioning groove 141, guide opening 142, second position detection sensor assembly 15, second position detection sensor 151, elastic pressure plate 152, push rod 16, push plate 161, dual-control clutch 17, power input shaft 18, clutch pawl 181, and integrated circuit control panel 19.

[0086] Reversing mechanism 20, support base 21, turntable 211, angle correction positioning rod 212, support leg 213, main linear lifting unit 22, lifting cylinder body 221, tubular plunger 222, central vertical shaft 23, fixed gear 24, reversing assembly 25, rotating gear 251, first drive shaft 252, first bevel gear 2521, bevel gear assembly 253, second bevel gear 2531, third bevel gear 2532, clutch structure 2533, second drive shaft 2534, support seat lifting pair linear lifting unit 26, connecting frame plate 27, upper and lower vertical sliding rod 271, horizontal connecting rod 272, mounting through hole 2701, top plate 273, positioning and fixing flange 28, extrusion part 281, round protrusion part 282;

[0087] The linkage dual-control clutch mechanism 30, handle 31, reversing groove 311, slide rod 312, shift fork push rod 32, first shift fork 33, second shift fork 34;

[0088] Rotary tillage mechanism 40, rotary tillage shaft 41, furrow rotary tillage wheel 42, bed rotary tillage wheel 43;

[0089] 50 trenching mechanisms;

[0090] Leveling mechanism 60;

[0091] Acupressure mechanism 70, acupressure shaft 71, acupressure assembly 72, acupressure wheel 721, acupressure head 722;

[0092] Guided double-acting operating mechanism 80, guide wheel 81, guide wheel lifting unit 82, cylinder sleeve mechanism assembly 83;

[0093] Drive wheel clutch mechanism 91;

[0094] Hydraulic drive shaft clutch mechanism 92, control handle 921 of hydraulic drive shaft clutch mechanism, hydraulic drive shaft 922;

[0095] Control handle 93 for rotary tillage mechanism;

[0096] Diesel engine acceleration / deceleration control handle 110. Detailed Implementation

[0097] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0098] It should be noted that when a component is referred to as being "fixed to", "mounted to", or "set on" another component, it can be directly on or indirectly set on the other component; when a component is "connected" to another component, or a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0099] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0100] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0101] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0102] This utility model provides a reversing mechanism, which includes a support base, a main linear lifting unit, a central vertical shaft, a fixed gear, and a reversing assembly. The main linear lifting unit is disposed on the support base. The central vertical shaft is fixedly disposed on the support base. The fixed gear is disposed on the central vertical shaft. The reversing assembly is used to connect to a vehicle and is connected to the main linear lifting unit. The reversing assembly has a rotating gear that matches the fixed gear. The main linear lifting unit can drive the reversing assembly to rise and fall, so that the rotating gear meshes with the fixed gear. The rotating gear can rotate circumferentially around the fixed gear to drive the reversing assembly to change direction. The reversing mechanism includes the main linear lifting unit and the reversing assembly. The main linear lifting unit can drive the reversing assembly to rise and fall. The reversing assembly is connected to the vehicle, so that the main linear lifting unit can drive the entire vehicle to rise and fall, allowing the vehicle to leave the ground. The rotating gear in the reversing assembly can rotate around the fixed gear, thereby synchronously driving the vehicle to rotate, realizing the vehicle's turning on the spot. The steering is more flexible and convenient, and can better meet the steering needs of the vehicle in different usage scenarios.

[0103] Please refer to the following: Figure 1 and Figure 2 In one embodiment, a reversing mechanism 20 is provided to address the problem that existing vehicles have a large turning radius when turning, making operation very inconvenient and limiting their application in certain scenarios.

[0104] The reversing mechanism 20 includes a support base 21, a main linear lifting unit 22, a central vertical shaft 23, a fixed gear 24, and a reversing assembly 25. The main linear lifting unit 22 is mounted on the support base 21, the central vertical shaft 23 is fixedly mounted on the support base 21, and the fixed gear 24 is mounted on the central vertical shaft 23. The reversing assembly 25 is connected to the vehicle and is connected to the main linear lifting unit 22. The reversing assembly 25 includes a rotating gear 251 that matches the fixed gear 24. The main linear lifting unit 22 can drive the reversing assembly 25 to rise and fall, so that the rotating gear 251 meshes with the fixed gear 24. The rotating gear 251 can rotate circumferentially around the fixed gear 24 to drive the reversing assembly 25 to reverse direction. In other words, the main linear lifting unit 22 drives the reversing assembly 25 to rise and fall, thereby changing the height of the rotating gear 251, and thus controlling the engagement or disengagement of the rotating gear 251 and the fixed gear 24. After the rotating gear 251 meshes with the fixed gear 24, driving the rotating gear 251 to rotate causes it to rotate around the circumference of the fixed gear 24, thereby causing the reversing assembly 25 to change direction as a whole, so that the reversing assembly 25 changes direction around the central vertical shaft 23. Since the vehicle is connected to the reversing assembly 25, the reversing of the reversing assembly 25 will synchronously drive the vehicle to turn, thereby realizing the vehicle's in-situ turning.

[0105] Specifically, in actual use, the support base 21 can be brought into contact with the ground first, and then the main linear lifting unit 22 can drive the reversing component 25 to rise, thereby lifting the vehicle and lifting it off the ground. When the reversing component 25 is raised to a certain height, the rotating gear 251 will mesh with the fixed gear 24, at which point the main linear lifting unit 22 stops operating. Then, the rotating gear 251 is driven to rotate, so that the rotating gear 251 will move around the circumference of the fixed gear 24, thereby turning the vehicle. When the vehicle turns to the desired direction, the rotating gear 251 stops rotating. Then, the main linear lifting unit 22 drives the reversing component 25 to descend, the rotating gear 251 separates from the fixed gear 24, and when it descends to a certain height, the vehicle's tires will contact the ground, realizing the vehicle's on-the-spot turning.

[0106] The power source that drives the rotating gear 251 to rotate can be located on the vehicle.

[0107] Understandably, in existing technology, vehicles typically steer by having the driver turn the steering wheel, which in turn causes the front wheels to turn at a certain angle. The steering angle and turning radius of this steering method are affected by factors such as the vehicle's wheelbase and track width. The turning radius is usually large, which has limitations and is not conducive to the use of some functional vehicles. In some narrow areas, the vehicle may not even be able to turn.

[0108] For example, traffic congestion often occurs on roads. If you need to turn or change lanes, there needs to be enough space around the vehicle to make the turn or U-turn, which is very inconvenient.

[0109] When a vehicle encounters an obstacle in front of it and cannot pass (such as a ditch in front of a tank), it needs to turn around, which is very inconvenient and takes a lot of time.

[0110] When vehicles are operating in the fields, they need to make large-angle turns to move from one side to the other. Vehicles that rely on their front wheels for steering have a large turning radius, which may damage the prepared fields during the turning process. This also makes steering inconvenient and affects the efficiency and effectiveness of agricultural operations.

[0111] The reversing mechanism 20 provided in this embodiment can lift the vehicle off the ground via the main linear lifting unit 22, thereby avoiding wear and tear on the vehicle during steering. Furthermore, the rotating gear 251 can rotate around the fixed gear 24 to achieve precise steering and ensure steering accuracy.

[0112] Specifically, in one embodiment, the reversing mechanism 20 is applied to agricultural vehicles, specifically agricultural vehicles used for field operations. When an agricultural vehicle needs to turn from one side to the other, it can turn in place using the reversing mechanism 20 before continuing its work. The turning process does not damage the prepared field, making turning simpler and more convenient, thus improving agricultural operation efficiency and effectiveness.

[0113] Of course, in other embodiments, the reversing mechanism 20 can also be applied to other types of vehicles, such as passenger cars and tanks, depending on the requirements. The application of the reversing mechanism 20 can greatly facilitate the turning and passage of various vehicles. When a passenger car encounters traffic congestion, it can be lifted off the ground by the reversing mechanism 20 and turned on the spot, either to go back or to change lanes. When a tank encounters an insurmountable obstacle such as a trench, it can also be lifted off the ground by the reversing mechanism 20 and turned on the spot, either to go back or to change lanes.

[0114] Preferably, in one embodiment, the central vertical shaft 23 is coaxially and parallel to the main linear lifting unit 22. The main linear lifting unit 22 includes a lifting cylinder body 221 and a hollow tubular plunger 222 disposed in the lifting cylinder body 221. The central vertical shaft 23 passes through the central through hole of the tubular plunger 222, and the bottom of the central vertical shaft 23 is fixedly connected to the support base 21. The fixed gear 24 is disposed at the upper end of the central vertical shaft 23. The reversing assembly 25 is connected to the tubular plunger 222. That is, in this embodiment, the main linear lifting unit 22 adopts a hollow plunger hydraulic cylinder structure, and the central vertical shaft 23 passes through the central through hole of the main linear lifting unit 22. By using a hydraulic cylinder for linear lifting, it has a greater load-bearing capacity, can lift the vehicle more stably, and is also easier to maintain later. The use of a hollow plunger hydraulic cylinder can facilitate more stable steering of the vehicle. The central vertical shaft 23 and the support base 21 are mainly used to support the entire vehicle during the turning process, allowing the entire vehicle to slide up and down and rotate around the central shaft.

[0115] Specifically, the hydraulic pipelines, control components, and other components in the hydraulic system of the main linear lifting unit 22 can all be installed on the vehicle.

[0116] Preferably, in one embodiment, a sealing structure is provided between the outer circumference of the tubular plunger 222 and the inner circumference of the lifting cylinder body 221, and the sealing structure provided on the inner circumference of the tubular plunger 222 is in tight contact with the outer circumference of the central vertical shaft 23.

[0117] Please refer to the following: Figures 3 to 7Preferably, in one embodiment, the reversing mechanism 20 further includes a positioning and fixing flange 28, which is fixedly mounted on the central vertical shaft 23 and located above the fixed gear 24. A second position detection sensor assembly 15 is provided on the vehicle. The second position detection sensor assembly 15 includes a second position detection sensor 151 and an elastic pressure plate 152 disposed on the top of the second position detection sensor 151. The positioning and fixing flange 28 is disposed corresponding to the second position detection sensor 15, and the top 28 of the positioning and fixing flange is provided with a pressing part 281. The pressing part 281 presses down on the elastic pressure plate 152, causing the elastic pressure plate 152 to press against the second position detection sensor 151, thereby controlling the operating state of the main linear lifting unit 22. Through the cooperation between the positioning and fixing flange 28 and the second position detection sensor assembly 15, precise control of the operating stroke of the main linear lifting unit 22 can be achieved. When the main linear lifting unit 22 lifts the vehicle, the second position detection sensor assembly 15 rises synchronously. After reaching a certain height, the pressing part 281 contacts and presses down on the elastic pressure plate 152, causing the elastic pressure plate 152 to press against the contact point of the second position sensor 151. This indicates that the vehicle has reached the correct height, and the main linear lifting unit 22 needs to be controlled to stop and maintain its position. In other words, the second position detection sensor 151 is used for position detection. The elastic pressure plate 152 presses against the second position detection sensor 151, which then feeds back a corresponding signal to control the main linear lifting unit 22, achieving precise operation. The second position detection sensor 151 can be electrically connected to a DC power supply on the vehicle.

[0118] Specifically, in one embodiment, when the main linear lifting unit 22 is a hydraulic cylinder, the second position detection sensor 151 can be a limit switch. When the pressing part 281 presses down on the elastic pressure plate 152, the elastic pressure plate 152 will correspondingly press down on the contact of the second position detection sensor 151, thereby turning off the power to the second position detection sensor 151. This causes the second solenoid valve in the hydraulic system to close and maintain hydraulic pressure, thus maintaining the vehicle's height and achieving precise control over vehicle lifting. This also better ensures the meshing between the two gears.

[0119] Preferably, in one embodiment, the circumferential surface of the positioning and fixing flange 28 is provided with a circular protrusion 282, which is used to push outward the second position detection sensor assembly 15 so that the elastic pressure plate 152 is separated from the squeezing part 281. In other words, some areas on the circumferential surface of the positioning and fixing flange 28 will have outwardly protruding circular protrusions 282. Since the positioning and fixing flange 28 is fixed on the central vertical shaft 23, and the second position detection sensor assembly 15 is installed on the vehicle, the second position detection sensor assembly 15 will move around the circumferential surface of the positioning and fixing flange 28 during the vehicle's turning process. When it moves to the position of the circular protrusions 282, the circular protrusions 282 will push the second position detection sensor assembly 15 outward, causing the elastic pressure plate 152 to separate from the squeezing part 281, thereby causing the contact of the second position detection sensor 151 to spring up. The second position detection sensor 151 is then energized, causing the solenoid valve in the hydraulic system to open and release pressure. Under the action of the vehicle's gravity, the vehicle will gradually descend until it touches the ground.

[0120] Specifically, in one embodiment, the circular protrusion 282 is a movable circular protrusion, that is, the circular protrusion 282 is not completely fixed, but can move along the height direction, so that when the vehicle rises, the circular protrusion 282 can be pushed upwards, and the circular protrusion 282 will not interfere with the normal rise of the vehicle.

[0121] More specifically, in one embodiment, the positioning and fixing flange 28 is provided with four movable circular protrusions 282, which are evenly distributed on the circumferential surface of the positioning and fixing flange 28, and the included angle between two adjacent circular protrusions 282 is 90°, thereby realizing right-angle steering control of the vehicle.

[0122] It is understandable that if the rotating gear 251 continues to rotate after the vehicle begins to descend, it poses a safety risk and may damage the component structure. More preferably, in one embodiment, the round protrusion 282 is also used to control the disengagement of the power source of the rotating gear 251. That is, a clutch is provided on the power transmission path between the power source of the rotating gear 251 and the rotating gear 251 itself, and the round protrusion 282 can also control the disengagement of the clutch, causing the rotating gear 251 to lose its power source for rotation. Therefore, when the second position detection sensor assembly 15 rotates to the position of the round protrusion 282, the round protrusion 282 pushes the second position detection sensor assembly 15 outward, causing the elastic pressure plate 152 to spring up, energizing the second position detection sensor 151, causing the solenoid valve in the hydraulic system to open and release pressure, and the vehicle begins to descend; simultaneously, the power transmission path of the rotating gear 251 is disconnected, and the rotating gear 251 stops rotating.

[0123] In other words, in this embodiment, precise control of the vehicle's rotation angle can be achieved through the cooperation between mechanical structures. The overall structure is simple and the operation is stable and reliable.

[0124] Specifically, in one embodiment, the second position detection sensor assembly 15 is mounted on a push rod 16, and a push plate 161 is mounted at the tail end of the push rod 16. The push plate 161 is connected to a dual-control clutch 17, which is located on the power transmission path between the rotational power source of the rotating gear 251 and the rotating gear 251. During vehicle steering, the tip of the push rod 16 contacts the circumferential surface of the positioning and fixing flange 28. When it rotates to the position of the round protrusion 282, the round protrusion 282 presses the push rod 16 outward, thereby pushing the push rod 16 outward. This causes the second position detection sensor assembly 15 to move outward synchronously, causing the elastic pressure plate 152 to spring up. The second position detection sensor 151 is then energized, and the vehicle begins to descend. Simultaneously, the outward-moving push rod 16 also pushes the push plate 161, which in turn drives the dual-control clutch 17 to move. This causes the dual-control clutch 17 to disengage, thereby disengaging the power source of the rotating gear 251, and the rotating gear 251 stops rotating.

[0125] Preferably, in one embodiment, a bearing may be provided at the front end of the push rod 16, so that the bearing contacts the circumferential surface of the positioning and fixing flange 28 to achieve rolling friction and better avoid wear between components.

[0126] Please refer to the following: Figure 8Preferably, in one embodiment, the reversing assembly 25 further includes a first drive shaft 252 and a bevel gear assembly 253. The first drive shaft 252 is connected to the rotating gear 251, and a first bevel gear 2521 is disposed on the first drive shaft 252. The bevel gear assembly 253 is disposed of a second drive shaft 2534, a second bevel gear 2531, and a third bevel gear 2532. The second bevel gear 2531 and the third bevel gear 2532 respectively mesh with the first bevel gear 2521. The second bevel gear 2531 and the third bevel gear 2532 are disposed oppositely at both ends of the second drive shaft 2534, and a clutch structure 2533 is disposed at each end of the second drive shaft 2534. The vehicle is equipped with a power input shaft 18 and a linked dual-control clutch mechanism 30. The power input shafts 18 are respectively located on the outer ends of both ends of the second drive shaft 2534, and each power input shaft 18 has a clutch pawl 181 at its end that matches the clutch structure 2533. The linked dual-control clutch mechanism 30 is connected to the two power input shafts 18 to drive the power input shafts 18 to move, thereby controlling the engagement and disengagement of the clutch pawl 181 with the clutch structure 2533. For example, as... Figure 8 As shown, when the linked dual-control clutch mechanism 30 drives the power input shaft 18 to move to the right, the clutch pawl 181 on the left end of the power input shaft 18 engages with the clutch structure 2533 on the left end, so that power is input to the reversing assembly 25 through the power input shaft 18 on the left end, thereby driving the first drive shaft 252 to rotate, and thus driving the rotating gear 251 to rotate; when the linked dual-control clutch mechanism 30 drives the power input shaft 18 to move to the left, the clutch pawl 181 on the right end of the power input shaft 18 engages with the clutch structure 2533 on the right end, so that power is input to the reversing assembly 25 through the power input shaft 18 on the right end, thereby driving the first drive shaft 252 to rotate, and thus driving the rotating gear 251 to rotate. The dual-control clutch mechanism 30 is used to move the power input shaft 18 in different directions, thereby changing the direction of power input and causing the rotating gear 251 to rotate in different directions. For example, when the vehicle needs to turn left, the dual-control clutch mechanism 30 can be used to move the power input shaft 18 to one side, so that power is input from one end of the power input shaft 18; when the vehicle needs to turn right, the dual-control clutch mechanism 30 can be used to move the power input shaft 18 to the other side, so that power is input from the other end of the power input shaft 18.

[0127] Specifically, in one embodiment, the first drive shaft 252 is rotatably mounted on the U-shaped bracket plate 11 on the vehicle. The bevel gear assembly 253 can also be rotatably mounted on the vehicle.

[0128] Preferably, in one embodiment, the linked dual-control clutch mechanism 30 is a vertically inclined sliding structure. The linked dual-control clutch mechanism 30 includes a handle 31, a shift fork push rod 32, a first shift fork 33, and a second shift fork 34. One end of the shift fork push rod 32 is fixedly connected to a slide rod 312 in a reversing groove 311 provided at the lower part of the handle 31. The reversing groove 311 is inclined relative to the axis of the shift fork push rod 32. The vertically inclined sliding structure of the linked dual-control clutch mechanism 30 means that the reversing groove 311 is inclined, and the slide rod 312 drives the shift fork push rod 32 to move axially. The first shift fork 33 and the second shift fork 34 are respectively disposed on the shift fork push rod 32, and the first shift fork 33 is connected to one power input shaft 18, and the second shift fork 34 is connected to another power input shaft 18. Figure 8 As shown, when the handle 31 slides up and down, the slide rod 312 slides along the reversing groove 311, thereby driving the shift fork push rod 32 to move left and right along its axis, thereby driving the power input shaft 18 to move, and controlling the engagement and disengagement of the clutch pawl 181 with the clutch structure 2533. By adopting an axial clutch method with a vertical oblique sliding structure, the vehicle can be kept stable during the vehicle's ascent without radial swaying or rocking, ensuring the safe and reliable operation of the vehicle.

[0129] Specifically, in one embodiment, the shift fork push rod 32 is parallel to the power input shaft 18 and is slidably mounted on the vehicle, and the first shift fork 33 and the second shift fork 34 are fixed on the shift fork push rod 32.

[0130] Specifically, in one embodiment, the reversing groove 311 and the axis of the shift fork push rod 32 have an angle of 28°.

[0131] Please continue reading. Figure 1 and Figure 2Preferably, in one embodiment, the main linear lifting unit 22 adopts a single-acting hydraulic cylinder, that is, the lifting cylinder body 221 is provided with hydraulic oil inlet and outlet at only one end. During operation, hydraulic oil enters the cylinder body 221 and pushes the plunger to extend in one direction. Resetting requires the assistance of external forces such as load gravity. Specifically, the hydraulic oil inlet and outlet are located in the bottom area of ​​the lifting cylinder body 221. By using a single-acting hydraulic cylinder, the arrangement and sealing difficulty of the main linear lifting unit 22 can be reduced, and it can be well adapted to the vehicle's reversing requirements. It is understood that if a double-acting hydraulic cylinder is used, an additional outer sleeve is required, and adding an outer sleeve makes sealing impossible. That is, an oil injection pipe needs to be added to the upper part of the cylinder, and oil can only be injected through the outer sleeve. If only the plunger needs to move up and down along the cylinder body, this structure can be used. However, this application needs to drive the vehicle to rotate. After the tubular plunger 222 drives the vehicle to rise, the vehicle still needs to rotate. Therefore, if a double-acting hydraulic cylinder is used, it will increase the difficulty of arrangement and installation, and may even hinder the normal rotation requirements of the vehicle.

[0132] Specifically, in one embodiment, the support base 21 is movably installed outside the bottom surface of the closed end of the lifting cylinder body 221, and the tubular plunger 222 is inserted into the inner cavity of the open end of the lifting cylinder body 221. The U-shaped frame fixed plate 11 provided on the vehicle is axially fixedly connected and circumferentially rotatably connected to the upper part of the outer sleeve of the tubular plunger 222. The central vertical shaft 23 is inserted into the central through hole of the tubular plunger 222, one end of the central vertical shaft 23 is fixedly connected to the center of the bottom surface of the support base 21, and the fixed gear 24 is installed on the upper end of the central vertical shaft 23.

[0133] Please refer to the following: Figures 1 to 7In one embodiment, when the vehicle needs to change direction via the reversing mechanism 20, the hydraulic system drives the tubular plunger 222 to move upward along the inner wall of the lifting cylinder body 221, driving the vehicle to rise off the ground. Simultaneously, the first drive shaft 252 and the rotating gear 251 mounted on the vehicle's U-shaped frame mounting plate 11 also move upward. This continues until the fixed gear 24 at the upper end of the central vertical shaft 23 meshes with the rotating gear 251 in the reversing assembly 25. At the same time, the positioning and fixing flange 28 presses down the elastic pressure plate 152, which presses down the contact of the second position detection sensor 151, causing the second position detection sensor 151 to shut off power and close the hydraulic solenoid valve to maintain hydraulic pressure. Simultaneously, the power source on the vehicle drives the first drive shaft 252 to rotate the rotating gear 251 around the fixed gear 24, causing the vehicle to turn left or right, completing a set steering angle. After completing a turning angle, the second position detection sensor assembly 15 is pushed out by the movable circular protrusion 282 on the positioning and fixing flange 28. The elastic pressure plate 152 springs up, and under the control of the electrical connection, the contact of the second position detection sensor 151 springs up and opens to provide power. At the same time, the hydraulic solenoid valve opens to release pressure (and the power to the first drive shaft 252 is also cut off). Under the action of the vehicle's gravity, the rotating gear 251 disengages from the fixed gear 24 at the upper end of the central vertical shaft 23, and the vehicle, along with the first drive shaft 252 and other structures mounted on it, descends to the ground.

[0134] Please refer to the following: Figure 1 and Figure 2 Preferably, in one embodiment, the reversing mechanism 20 further includes a support base lifting sub-linear lifting unit 26, which is connected to the support base 21 and the vehicle. The support base lifting sub-linear lifting unit 26 is mainly used to lift the support base 21, so that the support base 21 is off the ground, and to prevent the support base 21 from obstructing the normal driving operation of the vehicle.

[0135] When the main linear lifting unit 22 uses a single-acting hydraulic cylinder, after the vehicle completes its steering, the main linear lifting unit 22 no longer holds pressure, allowing it to descend under its own weight and expel the hydraulic oil from the lifting cylinder body 221. Once the vehicle reaches the ground, it can no longer rely on its own weight to expel the hydraulic oil from the lifting cylinder body 221. At this point, the operation of the support base lifting auxiliary linear lifting unit 26 provides power to raise the support base 21, expelling the hydraulic oil from the lifting cylinder body 221.

[0136] Specifically, in one embodiment, the support base lifting pair linear lifting unit 26 employs a double-acting hydraulic cylinder. Similarly, the hydraulic lines, control components, and other parts of the hydraulic system of the support base lifting pair linear lifting unit 26 can all be mounted on the vehicle.

[0137] Specifically, in one embodiment, two support base lifting sub-linear lifting units 26 are provided, and the two support base lifting sub-linear lifting units 26 are located on both sides of the main linear lifting unit 22. By setting the two support base lifting sub-linear lifting units 26, the force can be more stable and balanced during operation, thereby improving the stability of operation.

[0138] Preferably, in one embodiment, the support base lifting sub-linear lifting unit 26 is connected to the support base 21 via a turntable 211, and the turntable 211 is rotatably connected to the support base 21. This structure allows the support base lifting sub-linear lifting unit 26 to rotate relative to the support base 21, preventing the support base lifting sub-linear lifting unit 26 from interfering with vehicle steering.

[0139] Furthermore, in one embodiment, the lower end of the support base lifting sub-linear lifting unit 26 is fixedly mounted on the turntable 211, and the plunger at the upper end of the support base lifting sub-linear lifting unit 26 is fixedly connected to the vehicle. Specifically, the support base lifting sub-linear lifting unit 26 is fixedly connected to a rotatable labyrinth-sealed circular flange on the upper circular plane of the lower disc of the support base 21. More specifically, in one embodiment, the plunger at the upper end of the support base lifting sub-linear lifting unit 26 is connected to the U-shaped frame fixed sleeve plate 11.

[0140] Please refer to the following: Figure 2 , Figure 9 and Figure 10 Preferably, in one embodiment, the reversing mechanism 20 further includes a connecting frame plate 27, upper and lower vertical sliding rods 271, and a transverse connecting rod 272. The connecting frame plate 27 is disposed outside the main linear lifting unit 22. The upper and lower vertical sliding rods 271 are arranged parallel to the central vertical axis 23. The two ends of the transverse connecting rod 272 are respectively connected to the connecting frame plate 27 and the upper and lower vertical sliding rods 271. A vertical guide opening sleeve 12 is provided on the vehicle, and the upper and lower vertical sliding rods 271 are slidably disposed in the vertical guide opening sleeve 12. This structure allows for guidance during the lifting process, making the lifting more stable.

[0141] In one embodiment, two vertical sliding rods 271, two horizontal connecting rods 272, and two vertical guide opening sleeves 12 are respectively provided. The two horizontal connecting rods 272 are connected to both sides of the connecting frame plate 27, and the two vertical guide opening sleeves 12 are located in the position area of ​​the two sides of the connecting frame plate 27. The horizontal connecting rods 272 and the vertical sliding rods 271 are arranged in a one-to-one correspondence, and the vertical sliding rods 271 and the vertical guide opening sleeves 12 are arranged in a one-to-one correspondence.

[0142] Specifically, in one embodiment, one end of the horizontal connecting rod 272 is horizontally and movably connected to the upper and lower vertical sliding rod 271, and the other end of the horizontal connecting rod 272 is parallel and fixedly connected to the connecting frame plate of the fixed outer sleeve. The two ends of the upper and lower vertical sliding rod 271 are located in the vertical guide opening sliding sleeve 12.

[0143] Specifically, in one embodiment, the upper outer circle of the lifting cylinder body 221 is tightly fitted with the fixed sleeve of the connecting frame plate 27, and the lower end of the lifting cylinder body 221 is rotatably connected to the upper surface of the support base 21. More specifically, the lower outer circle of the lifting cylinder body 221 is provided with a circular groove, which is fitted into two semi-circular rings of a closed-loop seal on the support base 21, thereby facilitating the rotation of the lifting cylinder body 221.

[0144] Preferably, in one embodiment, the connecting frame plate 27 has a mounting through hole 2701, and the support base lifting sub-linear lifting unit 26 is movably installed in the mounting through hole 2701 on the connecting frame plate 27, thereby better stabilizing the support base lifting sub-linear lifting unit 26. Specifically, the middle position of the two support base lifting sub-linear lifting units 26 is movably installed in the mounting through holes 2701 on both sides of the connecting frame plate 27.

[0145] Preferably, in one embodiment, a first position detection sensor 13 is provided on the vehicle, and a top plate 273 is provided on the cross link 272, with the top plate 273 corresponding to the first position detection sensor 13. The first position detection sensor 13 is used to detect the position of the top plate 273 to control the operating state of the support seat lifting auxiliary linear lifting unit 26. The first position detection sensor 13 is mainly used to detect the current position height of the top plate 273. Through the cooperation between the first position detection sensor 13 and the top plate 273, precise control of the travel of the support seat lifting auxiliary linear lifting unit 26 is achieved. When the support seat lifting auxiliary linear lifting unit 26 raises the support base 21, the top plate 273 rises synchronously. When the top plate 273 contacts the first position detection sensor 13, it indicates that the height has been raised to the appropriate position. At this time, it is necessary to control the support seat lifting auxiliary linear lifting unit 26 to stop its operation and maintain its position. In other words, the first position detection sensor 13 is a sensor used for position detection. By detecting the position of the top plate 273 through the first position detection sensor 13, a corresponding signal is fed back from the first position detection sensor 13 to control the linear lifting unit 26 of the support base lifting pair, thereby achieving precise operation of the linear lifting unit 26 of the support base lifting pair and precise lifting of the support base 21. The first position detection sensor 13 can be electrically connected to a DC power supply device on the vehicle.

[0146] Specifically, in one embodiment, when the support base lifting pair linear lifting unit 26 uses a hydraulic cylinder, the first position detection sensor 13 is a limit switch. When the top plate 273 rises to a certain height, it will press the contact of the first position detection sensor 13, thereby the first position detection sensor 13 will feed back a corresponding signal, causing the solenoid valve in the hydraulic system to close, thereby stopping the operation of the support base lifting pair linear lifting unit 26 and stopping the rise of the support base 21, thus achieving precise lifting control.

[0147] After the vehicle completes the steering and descends to the ground, the corresponding solenoid valve in the hydraulic system is opened, and the hydraulic pipeline connected to the upper end of the support base lifting pair linear lifting unit 26 is pressurized, thereby driving the support base 21 together with the cross link 272 and the top plate 273 to rise until the top plate 273 moves to the first position detection sensor 13. The first position detection sensor 13 feeds back the corresponding signal, and the support base lifting pair linear lifting unit 26 maintains pressure. At this time, the support base 21 is in the position of being off the ground, completing one lifting and steering movement of the vehicle.

[0148] Please refer to the following: Figure 1 , Figure 11and Figure 12 Preferably, in one embodiment, the support base 21 is provided with an angle correction positioning rod 212, and the vehicle is provided with an angle correction positioning plate 14. The angle correction positioning plate 14 has a positioning groove 141 that matches the angle correction positioning rod 212, and the end of the angle correction positioning plate 14 has a guide opening 142 that communicates with the positioning groove 141. The guide opening 142 faces the angle correction positioning rod 212 and is used to guide and correct the position of the angle correction positioning rod 212. It is understood that in actual use, there may be deviations when the vehicle turns, which may lead to deviations during subsequent reset, affecting subsequent use. The angle correction positioning rod 212 and the angle correction positioning plate 14 can correct the deviations during reset, ensuring the accuracy of right-angle steering. For example, after the vehicle has finished rotating, during the reset process, when the support base lifting pair linear lifting unit 26 drives the support base 21 to rise, the angle correction positioning rod 212 will rise synchronously. If there is a deviation, the angle correction positioning rod 212 will not be aligned with the positioning groove 141. During the rising process, after the angle correction positioning rod 212 is inserted into the guide opening 142, it will be gradually corrected under the guidance of the groove wall of the guide opening 142, thereby improving the accuracy of right-angle steering. At this point, the vehicle returns to its initial state.

[0149] Specifically, in one embodiment, the guide opening 142 is a "V" shaped opening, which allows the angle correction positioning rod 212 to be better guided and corrected by the inclined groove walls on both sides.

[0150] Specifically, in one embodiment, the angle correction positioning plate 14 is disposed in the middle of the vehicle.

[0151] Specifically, in one embodiment, four angle correction positioning rods 212 are provided, and the four angle correction positioning rods 212 are evenly arranged on the support base 21. The included angle between two adjacent angle correction positioning rods 212 is 90°, so that correction can be achieved more accurately and conveniently.

[0152] Specifically, in one embodiment, the support base 21 is provided with a cross-shaped support frame, and the cross-shaped support frame extends four legs 213 radially along the support base 21, with the included angle between adjacent legs 213 being 90°. More specifically, the angle correction positioning rod 212 is vertically arranged on the legs 213.

[0153] It is understood that in some embodiments, the linear lifting unit used in the reversing mechanism 20 is a hydraulic cylinder, which requires connection to corresponding hydraulic lines and a hydraulic system. Of course, in other embodiments, the linear lifting unit used in the reversing mechanism 20 may also adopt other structural forms, such as pneumatic cylinders, electric cylinders, etc., as long as they can meet the load and working condition requirements.

[0154] Please refer to sections 1 through 2. Figure 20 Meanwhile, in one embodiment, a right-angle reversing box-ditch self-leveling compaction tillage machine 1000 is also provided, which includes a tillage machine body 10 and the reversing mechanism 20. The reversing mechanism 20 is disposed on the tillage machine body 10, and the reversing component 25 is connected to the tillage machine body 10 (specifically, in one embodiment, the reversing component 25 is connected to the U-shaped frame fixed plate 11 of the tillage machine body 10). The tillage machine body 10 is also provided with a rotary tillage mechanism 40, a ditching mechanism 50, a leveling mechanism 60, and a compaction mechanism 70. By setting the reversing mechanism 20 in the tillage machine body 10, the main linear lifting unit 22 controls the position lifting of the tillage machine body 10, and the reversing component 25 drives the tillage machine body 10 to rotate forward or in reverse. When a right-angle turn is required, the main body 10 of the tillage machine is first raised off the ground. Then, the linkage dual-control clutch mechanism 30 controls the reversing component 25 to rotate forward or backward, allowing the main body 10 of the tillage machine to rotate in the air. After reaching the set angle, the main body 10 of the tillage machine is lowered, achieving a turn in place. Operators using the right-angle reversing box trench self-leveling row-planting tillage machine 1000 find operations simpler and faster, requiring less space for turning and increasing work efficiency. During the turning process, there is no need to repeatedly reverse and adjust the vehicle position, reducing the impact on already tilled fields. Furthermore, the coordinated operation of the rotary tillage mechanism 40, the ditching mechanism 50, the leveling mechanism 60, and the row-planting mechanism 70 allows for one-time completion of functions including soil loosening and crushing, freely adjustable tillage depth, ditching on both sides, leveling of the soil beds, and row or hole pressing on the bed surface, significantly reducing the workload and labor intensity of soil bed excavation, loosening, crushing, leveling, and planting. Suitable for use in industries requiring sowing, such as row sowing, hole sowing, direct seeding, or transplanting, this standardized furrow and ridge preparation method fully utilizes land area.

[0155] In other embodiments, other existing agricultural machinery devices can also be installed on the land preparation machine body 10 to achieve different operational requirements.

[0156] Preferably, in one embodiment, the rotary tillage mechanism 40, the leveling mechanism 60, and the row-pressing mechanism 70 are sequentially arranged at the front, middle, and rear of the bottom surface of the tillage machine body 10; the ditching mechanism 50 is located at the bottom of the middle of both sides of the tillage machine body 10; and the leveling mechanism 60 is located at the bottom of the middle-rear side of the tillage machine body 10. The rotary tillage mechanism 40, the ditching mechanism 50, and the leveling mechanism 60 are all drive-connected to the tillage machine body 10.

[0157] Preferably, in one embodiment, the rotary tillage mechanism 40 includes a rotary tillage shaft 41 and furrow rotary tillage wheels 42 and bed rotary tillage wheels 43 disposed on the rotary tillage shaft 41. The diameter of the furrow rotary tillage wheel 42 is larger than the diameter of the bed rotary tillage wheel 43. The furrowing mechanism 50 is located behind the furrow rotary tillage wheel 42. Specifically, the bed rotary tillage wheel 43 is used to loosen and break up the soil on the bed surface, and the furrow rotary tillage wheel 42 is used to loosen and break up the soil in the furrows and scoop the broken soil into the furrowing mechanism 50 on both sides and send it into the leveling mechanism 60. The leveling mechanism 60 then levels the fed-in broken soil.

[0158] Specifically, in one embodiment, two rotary tillers 42 are provided on both sides of the two rotary shafts 41, and the ridge rotary tiller 43 is located in the area between the two rotary tillers 42.

[0159] Specifically, in one embodiment, the diameter of the furrow rotary tiller 42 is 50-80 mm larger than the diameter of the bed rotary tiller 43.

[0160] Preferably, in one embodiment, two trenching mechanisms 50 are provided, and both trenching mechanisms 50 are groove-reversed scoop-shaped structures. The end face of the small end of each trenching mechanism 50 is closed, and the large end of each trenching mechanism 50 is open. The closed end of the small end of each trenching mechanism 50 is respectively hinged to the bottom of both sides of the land leveling machine body 10, and the trenching mechanism 50 is inclinedly arranged on the bottom of both sides of the land leveling machine body 10. A waist-shaped positioning groove is provided on one side wall of the large end of each trenching mechanism 50. Two screws pass through the waist-shaped positioning groove to install the trenching mechanism 50 on the land leveling machine body 10. The waist-shaped positioning groove is arranged vertically to achieve vertical positioning of the groove opening end, so that the opening end of the two grooves is lower than the closed end and is inclinedly arranged on the bottom of both sides of the middle part of the land leveling machine body 10. A notch is provided on one side wall of the closed end of each groove, and the notch matches the position of the leveling mechanism 60.

[0161] Preferably, in one embodiment, the leveling mechanism 60 is a double-opposing spiral leveling wheel, and the diameters of the spiral wheels at both ends of the double-opposing spiral leveling wheel are the same.

[0162] Specifically, the notch is matched with the position of the spiral leveling wheel.

[0163] Preferably, in one embodiment, the acupressure mechanism 70 includes an acupressure shaft 71 and acupressure components 72. Multiple acupressure components 72 are arranged sequentially along the axial direction of the acupressure shaft 71. Each acupressure component 72 includes a pressing wheel 721 and acupressure heads 722. The pressing wheels 721 are disposed on the acupressure shaft 71, and the positions of adjacent pressing wheels 721 are adjustable. Multiple acupressure heads 722 are sequentially arranged on the outer circumference of each pressing wheel 721, and the radial position of the acupressure heads 722 on the same pressing wheel 721 is adjustable. The acupressure component 72 can be used for either simple pressing or acupressure; for example, removing the acupressure head 722 allows for pressing alone.

[0164] Preferably, in one embodiment, the tillage machine body 10 is further provided with a dual-action guiding mechanism 80, which is located at the front of the tillage machine body 10. A guide wheel 81 is provided at the bottom of the dual-action guiding mechanism 80, and a guide wheel lifting unit 82 for controlling the raising and lowering of the guide wheel 81 is also provided within the dual-action guiding mechanism 80. That is, in this embodiment, the guide wheel 81 of the tillage machine body 10 is a liftable structure, and its position and height can be adjusted by the guide wheel lifting unit 82. The dual-action guiding mechanism 80 has two main functions: first, to guide the tillage machine body 10; the rotation of the guide wheel 81 can be controlled by a steering wheel, thereby adjusting the forward direction of the tillage machine body 10; second, by adjusting the raising or lowering of the guide wheel 81 through the guide wheel lifting unit 82, the depth of soil loosening and crushing in the soil trench can be adjusted.

[0165] Specifically, in one embodiment, the guide wheel lifting unit 82 employs a double-acting hydraulic cylinder. By rotating the automatic lifting control knob on the integrated circuit control panel 19 on the tillage machine body 10 to the lift or lower indicator position, the depth of ridging tillage can be adjusted via the guide wheel hydraulic valve 103 to achieve the desired depth. Hydraulic pressure control adjusts the rise or fall of the guide wheel 81, thereby regulating the depth of soil loosening. Of course, in other embodiments, other structures achieving linear motion, such as pneumatic or electric cylinders, can be used, as long as the load and operating conditions are met.

[0166] Specifically, in one embodiment, the dual-acting guide mechanism 80 is provided with two guide wheels 81 and two guide wheel lifting units 82.

[0167] In one embodiment, the guided double-acting operating mechanism 80 further includes a cylinder sleeve mechanism assembly 83 disposed outside the guide wheel lifting unit 82.

[0168] Preferably, in one embodiment, the right-angle reversing box trench self-leveling compactor 1000 further includes an integrated circuit main controller. Components on the compactor body 10 and components in the reversing mechanism 20 can be electrically connected to the main controller (e.g., diesel engine, integrated circuit control panel 19, various sensors, various solenoid valves, various hydraulic valves, etc.). The integrated circuit main controller coordinates the compactor body 10 and the reversing mechanism 20, and the corresponding logic control program is written into the integrated circuit main controller. The integrated circuit control panel 19 is also provided, and it is equipped with a pause button, which can also be used for emergency stop. Operators can select the corresponding operation keys from the integrated circuit control panel 19, greatly improving efficiency and reducing operational difficulty.

[0169] In one embodiment, the lifting and steering movement of the main body 10 of the land leveling machine is designed with both electric automatic control and electric manual control. A power key switch can be installed on the integrated circuit control panel 19. When the power key switch is in the "OFF" position, the power supply to the controller and solenoid valves is completely disconnected, and the system control operation is ineffective. When the power key switch is in the "ON" position, the "manual" or "automatic control" power is supplied. When the power key switch is in the "ignition" position, the starter operates, which can start the diesel engine. A charging indicator light can also be installed on the integrated circuit control panel 19. When the power key switch is in the ON position, the charging indicator light is on when the generator is not generating electricity, and off when it is generating electricity. The integrated circuit control panel 19 can also be equipped with a control mode knob and a manual control knob. When the control mode knob is in the "manual" position, the manual control three-position knob switch is active. When the manual control three-position knob switch is in the "up" position, the lifting electromagnets of the main linear lifting unit 22 and the support seat lifting auxiliary linear lifting unit 26 are connected. When the hydraulic oil pump is running, the oil cylinder extends, and the agricultural machinery is in an upward state. When the manual control three-position knob switch is in the "stop" position, the solenoid valves of the main linear lifting unit 22 and the support seat lifting auxiliary linear lifting unit 26 are de-energized, and the oil cylinder stops extending or retracting, maintaining the current state. When the manual control three-position knob switch is in the "down" position, the lowering electromagnets of the main linear lifting unit 22 and the support seat lifting auxiliary linear lifting unit 26 are energized. At this time, regardless of whether the oil pump is running, the main linear lifting unit 22 retracts by the weight of the vehicle, and the two support seat lifting auxiliary linear lifting units 26 can only retract completely when the oil pump is running, so that the support base 21 is in a "suspended" position.

[0170] Additionally, when the control mode knob switch is in the "automatic" position, the main controller is powered on and the control program runs. When the control mode is in automatic mode, pressing the start button initiates the control program to execute the specified actions. In automatic control mode and with the oil pump running, pressing the "start" button activates the rising solenoids Y1 and Y4 in the solenoid valve, causing the vehicle to rise. When the rising limit switch (the second position detection sensor 151) is touched, causing the rising limit switch to close, the rising solenoids Y1 and Y4 in the solenoid valve are de-energized, and the oil cylinder maintains its current state, i.e., the vehicle maintains its current rising height. The mechanical part controls the vehicle to rotate 90 degrees in a specified direction. When the 90-degree rotation is reached, the descending solenoids Y2 and Y3 in the solenoid valve are energized, the oil cylinder retracts, and the vehicle begins to descend. When the support base lifting auxiliary linear lifting unit 26 retracts and touches the descending limit switch, the descending solenoids Y2 and Y3 in the solenoid valve are de-energized, and the support base 21 is in a "suspended" state, completing the entire control process. Pressing the "Pause" button at any stage of the program will pause the program, de-energize all solenoid valves, and keep the hydraulic cylinders in their current state, ceasing all movement. Pressing the "Pause" button again will release the button and immediately resume program operation.

[0171] Preferably, in one embodiment, the tillage machine body 10 is further provided with a drive wheel clutch mechanism 91 and a hydraulic transmission shaft clutch mechanism 92. The drive wheel clutch mechanism 91 is used to control the engagement and disengagement of the drive wheel, and the hydraulic transmission shaft clutch mechanism 92 is used to control the engagement and disengagement of the hydraulic transmission shaft. That is, in this embodiment, clutches are respectively provided on the power transmission path of the drive wheel and the hydraulic transmission shaft, and the drive wheel clutch mechanism 91 and the hydraulic transmission shaft clutch mechanism 92 are used to control the movement of these clutches, thereby realizing the engagement and disengagement of power transmission. The drive wheel is the power wheel for the tillage machine body 10 to move forward; in one embodiment, it is the rear wheel of the tillage machine body 10. More preferably, in one embodiment, both the drive wheel clutch mechanism 91 and the hydraulic transmission shaft clutch mechanism 92 adopt a vertical oblique sliding structure. Through a guide rail connected to the tillage machine body 10 and capable of sliding up and down, and through a pull rod connected to the clutch, the clutch's double roller pins slide vertically within double opposing oblique sliding grooves, driving the clutch to slide laterally along the axial direction, thereby achieving a clutch function. This ensures the tillage machine body 10 remains stable during its ascent, preventing radial swaying and rocking, thus guaranteeing the safe and reliable operation of the tillage machine body 10.

[0172] In one embodiment, the working principle of the right-angle reversing box trench self-leveling compactor 1000 is as follows:

[0173] Initial state: Under the constraint of the two support base lifting pairs linear lifting units 26, the reversing mechanism 20 has the support base 21 positioned above the bottom of the tillage machine body 10. The main linear lifting unit 22 is without hydraulic pressure, and the support base 21 is stationary on the ground. The fixed gear 24 at the upper end of the central vertical shaft 23 and the rotating gear 251 fixedly mounted on the first drive shaft 252 are not engaged. At this time, the dual-control clutch 17 is disengaged, and the angle correction positioning rod 212 is positioned in the V-shaped opening of the positioning groove 141 of the angle correction positioning plate 14 located in the lower part of the tillage machine body 10. At this time, the operator drives the machine to perform operations, controlling the direction of operation and determining the direction of the furrowing work through the steering wheel.

[0174] When turning is required, first, the main body 10 of the tillage machine is raised off the ground via the hydraulic control system for turning, and then the main body 10 of the tillage machine is returned to a stationary state on the ground. The specific machine start-up sequence is as follows: 1. Start the diesel engine by turning the starter motor connected to the diesel engine using the diesel engine start knob on the integrated circuit control panel 19. 2. Turn the automatic control knob of the integrated circuit control panel 19 to the automatic control position and hold it, then press the automatic button on the side and hold it. 3. Push the control handle 171 of the dual-control clutch 17 outward to engage the dual-control clutch 17. 4. Push the diesel engine acceleration / deceleration control handle 110 forward to accelerate the diesel engine. 5. Pull up the control handle 921 in the hydraulic clutch mechanism 92 to engage the clutch, causing the hydraulic transmission shaft 922 to rotate. At this time, the main linear lifting unit 22 will drive the main body 10 of the land leveling machine to rise. At the same time, the first drive shaft 252 and the rotating gear 251 installed on the U-shaped frame fixed plate 11 of the main body 10 of the land leveling machine will also move upward until the fixed gear 24 at the upper end of the central vertical shaft 23 meshes with the rotating gear 251. At the same time, by pressing down the elastic pressure plate 152 on the second position detection sensor assembly 15 and under the control of the electrical connection, the contacts of the second position detection sensor 151 are closed and de-energized. At the same time, the second solenoid valve 102 is closed to maintain hydraulic pressure. At the same time, the first drive shaft 252 is driven by the driving power to drive the rotating gear 251 to rotate circumferentially around the fixed gear 24 at the upper end of the central vertical shaft 23, thereby driving the main body 10 of the land leveling machine to rotate to the left or right. When the tillage machine body 10 completes a set reversing angle, the push rod 16, fitted with a bearing, is pushed out by one of the four movable circular protrusions 282 evenly distributed on the positioning and fixing flange 28. This causes the elastic pressure plate 152 on the second position detection sensor assembly 15 to spring up, the contact of the second position detection sensor 151 to spring up and release, and under the control of the electrical connection, it is energized, opening the second solenoid valve 102 to release the hydraulic pressure. Simultaneously, the power input to the rotating gear 251 is disconnected. While the main linear lifting unit 22 releases pressure, the tillage machine body 10, the first drive shaft 252, and the rotating gear 251 descend along the inner wall of the lifting cylinder body 221 and the outer wall of the central vertical shaft 23. The fixed gear 24 on the central vertical shaft 23 disengages from the rotating gear 251 on the first drive shaft 252, and the tillage machine body 10 descends to the ground soil under gravity. Then, by injecting oil into the hydraulic pipe at the upper end of the support base lifting sub-linear lifting unit 26 to increase the pressure, the support base 21 is raised, and at the same time, the cross link 272 and other components are raised together.After rising to a certain height, the top plate 273 presses against the contact of the first position detection sensor 13, the first solenoid valve 101 closes and stops the rise of the support base 21. This facilitates the movement of the tillage machine body 10. At this point, the tillage machine body 10 completes one lifting and turning operation. 6. Push the control handle 171 of the dual-control clutch 17 to engage the dual-control clutch 17. 7. Push the control handle 93 of the clutch of the rotary tillage mechanism 40 to engage the clutch on the power transmission path of the rotary tillage mechanism 40, and the rotary tillage mechanism 40 rotates. 8. Adjust the hydraulic pressure of the guide wheel lifting unit 82, that is, turn the automatic lifting control knob of the integrated circuit control panel 19 to the lift or lower indicator position. The depth of furrow tillage can be adjusted through the guide wheel hydraulic valve 103 to achieve the desired furrow tillage depth. 9. Pull up the control handle of the drive wheel clutch mechanism 91 to engage the clutch of the drive wheel, causing the drive wheel on the drive shaft to rotate and drive the machine to move along the working direction, loosening and turning over the fine soil in the ridges. The rotary tillage mechanism 40, through the furrow rotary tillage wheel 42 and the ridge rotary tillage wheel 43, loosens the fine soil in the furrows and continuously scoops the fine soil from the furrows into the opposing furrowing mechanisms 50 on both sides and sends it into the leveling mechanism 60. Then, the leveling mechanism 60 continuously spirals and conveys the fine soil towards the center of the ridge surface, leveling the entire ridge surface. The working sequence is as follows: the furrowing mechanism 50 moves forward with the machine, and its open end collects the loosened and fine soil from both sides of the working area and squeezes it into the opening of the scoop and into the notch set on the two side walls of the spiral wheel. It overflows from the notch to the position of the rotating opposing double spiral leveling wheels. When the double opposing spiral wheels rotate, they continuously transport the loosened and fine soil from both sides to the ridge surface, realizing the leveling of the ridge. When the pressing shaft 71 in the pressing hole mechanism 70 rotates, the pressing wheel 721 or the pressing head 722 mounted on it presses out rows or holes of a specified spacing on the surface of the soil. The pressing hole assembly 72 can be used to press either rows or holes. If the pressing head 722 is removed, it can press rows alone.

[0175] When changing work positions after completing one round of digging, trenching on both sides, leveling the soil bed, and pressing rows or holes on the bed surface, or pressing rows or holes individually, the operator needs to: 1. Pull up the control handle of the drive wheel clutch mechanism 91 to disengage the clutch of the drive wheel, stop the drive wheel from rotating, and stop the main body 10 of the tillage machine from moving. 2. Pull inwards the control handle 93 of the clutch of the rotary tillage mechanism 40 to disengage the clutch on the power transmission path of the rotary tillage mechanism 40, and stop the rotary tillage mechanism 40 from working. 3. Push down the control handle of the drive wheel clutch mechanism 91, allowing the main body 10 of the tillage machine to travel a distance equal to the width of the machine body, and then pull up the control handle of the drive wheel clutch mechanism 91 to disengage the clutch and stop the drive wheel from rotating. 4. When the integrated circuit control panel 19 is in the automatic control position, under the action of electro-hydraulic control, the main body 10 of the tillage machine will automatically rise and detach from the ground soil. The first drive shaft 252 and the rotating gear 251 installed on the U-shaped frame fixed plate 11 of the main body 10 of the tillage machine will also move upward simultaneously until the fixed gear 24 at the upper end of the central vertical shaft 23 meshes with the rotating gear 251 in the reversing assembly 25. At the same time, the elastic pressure plate 152 is pressed down and the second position detection sensor 151 connected to the electrical connection is turned off, and the second solenoid valve 102 is closed to maintain hydraulic pressure. At the same time, the first drive shaft 252 is driven by the driving power to drive the rotating gear 251. The rotating gear 251 disengages from the fixed gear 24 (during operation, the direction of rotation is determined by pulling up the control handle 171 of the dual-control clutch 17 to engage the clutch for left-hand steering or pushing down the clutch for right-hand steering), simultaneously driving the tillage machine body 10 to rotate left or right to complete a set required steering angle. After completing a steering angle, when the second position detection sensor assembly 15 passes through the protruding, movable protrusion 282, the protrusion 282 immediately pushes out the bearing on the push rod 16, simultaneously lifting the elastic pressure plate 152. Under the control of the electrical connection, the contact of the second position detection sensor 151 pops up and opens to provide power, and the second solenoid valve 102 opens to release pressure. Under the gravity of the tillage machine body 10, the rotating gear 251 disengages from the fixed gear 24, and the tillage machine body 10, along with the first drive shaft 252 and other structures mounted on it, descends to the ground soil. Then, by opening the solenoid valves of the hydraulic control components of the two support base lifting pairs linear lifting units 26, the connecting pipes at the upper ends of the two support base lifting pairs linear lifting units 26 are pressurized to lift the support base 21 to the detection position of the first position detection sensor 13 and remove it from the ground, thus completing one lifting and turning movement of the main body 10 of the land leveling machine.6. Push down the control handle of the drive wheel clutch mechanism 91 (pull out the control handle 93 of the rotary tillage mechanism 40 clutch), the drive wheel rotates, and the main body 10 of the tillage machine moves forward to carry out furrow and ridge tillage; repeat this operation until the required tillage area is completed.

[0176] The specific machine operation process is as follows: When the integrated circuit control panel 19 is in the automatic control position, pressing the automatic button on the side causes the lifting cylinder body 221 to receive the command and, under hydraulic pressure, inject oil into the lifting cylinder, causing the tubular plunger 222 to move upward along the inner wall of the lifting cylinder body 221, lifting the land leveling machine body 10 to rise off the ground. Simultaneously, the first drive shaft 252 and the rotating gear 251, mounted on the U-shaped frame mounting plate 11 of the land leveling machine body 10, also move upward until the rotating gear 251 meshes with the fixed gear 24. The driving power, through the first drive shaft 252, drives the rotating gear 251 to rotate circumferentially around the fixed gear 24, causing the land leveling machine body 10 to rotate and change direction. After the turn is completed, the lifting cylinder body 221 is depressurized via an automatic control circuit command. The tubular plunger 222 moves downward along the inner wall of the lifting cylinder body 221, causing the tillage machine body 10, the first drive shaft 252 mounted thereon, and the rotating gear 251 to descend together. The rotating gear 251 disengages from the fixed gear 24, and the tillage machine body 10 descends to the ground. Then, via a circuit command, the first solenoid valve 101, controlled by the first position detection sensor 13 which controls the hydraulic pressure, is opened, pressurizing the connecting pipes at the upper ends of the two support base lifting pairs linear lifting units 26, raising the support base 21 to the position of the first position detection sensor 13 until it is completely out of contact with the ground soil.

[0177] The following further explains the operation process of each structure:

[0178] The machine operation process involves turning left or right: The handle 31 on the main body 10 of the land leveling machine drives the slide rod 312 to slide vertically up and down in the reversing groove 311, which in turn drives the shift fork push rod 32 to slide left and right along its axis. This causes the first shift fork 33 and the second shift fork 34 on the shift fork push rod 32 to move the power input shaft 18. The power input shaft 18 moves to the left or right, causing the clutch pawl 181 on one of the power input shafts 18 to engage with the clutch structure 2533 at the end of the second drive shaft 2534. Under the action of the power drive shaft, the first bevel gear 2521 is provided with left or right rotational power. The first drive shaft 252 drives the rotating gear 251 to rotate around the fixed gear 24, causing the main body 10 of the land leveling machine to rotate and change direction, thus realizing the left or right turning of the main body 10 of the land leveling machine.

[0179] Steering angle control: The first drive shaft 252 provides driving power through the second bevel gear 2531 or the third bevel gear 2532 meshing with the first bevel gear 2521 fixed at the lower end of the shaft, causing the rotating gear 251 to rotate circumferentially around the fixed gear 24 fixed at the upper end of the central shaft, driving the tillage machine body 10 to rotate. The bearing mounted on the push rod 16 and the second position detection sensor assembly 15 roll along the outer circle of the positioning and fixing flange 28. When the bearing and the second position detection sensor assembly 15 roll to any one of the four movable circular protrusions 282 evenly arranged on the circumference of the positioning and fixing flange 28, the bearing and the second position detection sensor assembly 15 are pushed out by the circular protrusion 282, and at the same time, the engagement of the dual-control clutch 17 connected to the diesel engine power is disengaged, cutting off the driving power of the power input shaft 18, and the tillage machine body 10 stops rotating. Simultaneously, the elastic pressure plate 152 on the second position detection sensor assembly 15 springs up, the contact of the second position detection sensor 151 springs up and releases, and is energized under the control of the electrical connection. At the same time, the second solenoid valve 102 opens and releases the hydraulic pressure. While the main linear lifting unit 22 is depressurized, the tillage machine body 10 descends under gravity. At the same time, the first drive shaft 252 and the rotating gear 251 fixedly mounted on it descend together and disengage from the fixed gear 24 until the tillage machine body 10 is lowered to the ground soil. Then, when the hydraulic pressure of the main linear lifting unit 22 is cut off, the first position detection sensor 13, which controls the hydraulic pressure, is controlled by the circuit command of the integrated circuit control panel 19. The first solenoid valve 101 is opened, pressurizing the connecting pipes at the upper end of the two support base lifting auxiliary linear lifting units 26. The support base 21 is lifted to the position of the first position detection sensor 13 and the contact of the first position detection sensor 13 is pressed to maintain the hydraulic pressure. At this point, the entire support base 21 is completely detached from the ground soil.

[0180] The steering angle auxiliary components work as follows: The solenoid valves of the hydraulic control components of the two support base lifting sub-linear lifting units 26 are opened, and oil is injected and pressurized through the connecting pipes at the upper ends of the two support base lifting sub-linear lifting units 26, lifting the support base 21. The two support base lifting sub-linear lifting units 26 pull the main linear lifting unit 22 upwards, and the lifting cylinder body 221 discharges oil to the oil tank. Simultaneously, the angle correction positioning rod 212 is inserted into the V-shaped opening of the positioning groove 141 of the angle correction positioning plate 14. Since the angle correction positioning plate 14 has a V-shaped opening facing the angle correction positioning rod 212, if there is a deviation in the 90° rotation of the tillage machine body 10, it can be corrected through the angle correction positioning rod 212 and the V-shaped opening of the angle correction positioning plate 14, improving the accuracy of right-angle steering. At this point, the tillage machine body 10 returns to its initial state for the next operation.

[0181] The above description is merely an embodiment of this utility model. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of this utility model, but these improvements all fall within the protection scope of this utility model.

Claims

1. A reversing mechanism, characterized in that, Includes a support base, main linear lifting unit, central vertical shaft, fixed gear, and reversing assembly; The main linear lifting unit is mounted on the support base; The central vertical shaft is fixedly mounted on the support base; The fixed gear is mounted on the central vertical shaft; The reversing assembly is used to connect to the vehicle and is connected to the main linear lifting unit. The reversing assembly is provided with a rotating gear that matches the fixed gear. The main linear lifting unit can drive the reversing component to rise and fall, so that the rotating gear meshes with the fixed gear; the rotating gear can rotate circumferentially around the fixed gear, so as to drive the reversing component to change direction.

2. The reversing mechanism according to claim 1, characterized in that, The central vertical shaft is coaxially and parallel to the main linear lifting unit; The main linear lifting unit includes a lifting cylinder body and a hollow tubular plunger disposed in the lifting cylinder body; The central vertical shaft passes through the central through hole of the tubular plunger, and the bottom of the central vertical shaft is fixedly connected to the support base. The fixed gear is located at the upper end of the central vertical shaft. The reversing assembly is connected to the tubular plunger.

3. The reversing mechanism according to claim 1, characterized in that, It also includes a support base lifting sub-linear lifting unit, which is connected to the support base and the vehicle respectively.

4. The reversing mechanism according to claim 3, characterized in that, The linear lifting unit of the support base is connected to the support base via a turntable, and the turntable is rotatably connected to the support base.

5. The reversing mechanism according to claim 3, characterized in that, It also includes connecting frame plates, vertical sliding rods, and horizontal connecting rods; The connecting frame plate is located outside the main linear lifting unit; The vertical sliding rods are arranged parallel to the central vertical axis; The two ends of the horizontal connecting rod are respectively connected to the connecting frame plate and the upper and lower vertical sliding rods; The vehicle is equipped with a vertical guide opening sleeve, and the upper and lower vertical sliding rods are slidably disposed in the vertical guide opening sleeve.

6. The reversing mechanism according to claim 5, characterized in that, The connecting frame plate has an installation through hole, and the support base lifting pair linear lifting unit is movably installed in the installation through hole on the connecting frame plate.

7. The reversing mechanism according to claim 5, characterized in that, The vehicle is equipped with a first position detection sensor, and a top plate is provided on the cross link, with the top plate corresponding to the first position detection sensor. The first position detection sensor is used to detect the position of the top plate in order to control the operating status of the linear lifting unit of the support seat lifting pair.

8. The reversing mechanism according to claim 3, characterized in that, An angle correction and positioning rod is provided on the support base; The vehicle is equipped with an angle correction positioning plate, which has a positioning groove that matches the angle correction positioning rod. The end of the angle correction positioning plate has a guide opening that communicates with the positioning groove. The guide opening faces the angle correction positioning rod and is used to guide and correct the position of the angle correction positioning rod.

9. The reversing mechanism according to claim 1, characterized in that, It also includes a positioning and fixing flange, which is fixedly mounted on the central vertical shaft and located on the upper side of the fixing gear; The vehicle is equipped with a second position detection sensor assembly, which includes a second position detection sensor and an elastic pressure plate disposed on the top of the second position detection sensor; The positioning and fixing flange is set in relation to the second position detection sensor. The top of the positioning and fixing flange is provided with a pressing part. The pressing part presses down on the elastic pressure plate so that the elastic pressure plate presses the second position detection sensor to control the operating state of the main linear lifting unit.

10. The reversing mechanism according to claim 9, characterized in that, The circumferential surface of the positioning and fixing flange is provided with an outwardly protruding circular protrusion, which is used to push outward the second position detection sensor assembly so that the elastic pressure plate is separated from the extrusion part; Furthermore, the circular protrusion is also used to control the engagement and disengagement of the power source of the rotating gear.

11. The reversing mechanism according to claim 1, characterized in that, The reversing assembly also includes a first drive shaft and a bevel gear assembly; The first drive shaft is connected to the rotating gear, and a first bevel gear is provided on the first drive shaft; The bevel gear assembly is provided with a second drive shaft, a second bevel gear, and a third bevel gear, the second bevel gear and the third bevel gear respectively meshing with the first bevel gear; the second drive shaft has the second bevel gear and the third bevel gear arranged in opposite directions at both ends, and the ends of the second drive shaft are respectively provided with clutch structures; The vehicle is equipped with a power input shaft and a dual-control clutch mechanism; The power input shafts are respectively provided on the outer sides of the ends of the second drive shaft, and each power input shaft is provided with a clutch pawl that matches the clutch structure at its end; The linked dual-control clutch mechanism is connected to the two power input shafts to drive the power input shafts to move, thereby controlling the engagement and disengagement of the clutch pawl and the clutch structure.

12. The reversing mechanism according to claim 11, characterized in that, The linkage dual-control clutch mechanism is a vertical oblique sliding structure, and the linkage dual-control clutch mechanism includes a handle, a shift fork push rod, a first shift fork, and a second shift fork; One end of the shift fork push rod is fixedly connected to the slide rod in the reversing groove provided at the lower part of the handle, and the reversing groove is inclined relative to the axis of the shift fork push rod. The first shift fork and the second shift fork are respectively disposed on the shift fork push rod, and the first shift fork is connected to one of the power input shafts, and the second shift fork is connected to another power input shaft; When the handle slides up and down, the slide rod slides along the reversing groove to drive the shift fork push rod to move left and right along its axis, thereby driving the power input shaft to move and control the engagement and disengagement of the clutch pawl and the clutch structure.

13. A right-angle reversing box trench self-leveling compactor for land leveling, characterized in that, The system includes a land preparation machine body and a reversing mechanism as described in any one of claims 1 to 12, wherein the reversing mechanism is disposed on the land preparation machine body and the reversing assembly is connected to the land preparation machine body; The main body of the land preparation machine is also equipped with a rotary tillage mechanism, a ditching mechanism, a leveling mechanism, and a pressing hole mechanism.

14. The right-angle reversing box trench self-leveling compactor according to claim 13, characterized in that, The rotary tillage mechanism, the leveling mechanism, and the row-pressing mechanism are sequentially arranged at the front, middle, and rear of the bottom surface of the main body of the tillage machine, while the furrowing mechanism is arranged at the bottom of the middle of both sides of the main body of the tillage machine.

15. The right-angle reversing box trench self-leveling compactor according to claim 13, characterized in that, The rotary tillage mechanism includes a rotary tillage shaft and furrow rotary tillage wheels and bed rotary tillage wheels mounted on the rotary tillage shaft. The diameter of the furrow rotary tillage wheels is larger than the diameter of the bed rotary tillage wheels. The furrowing mechanism is located behind the rotary tiller of the furrow.

16. The right-angle reversing box trench self-leveling compactor according to claim 13, characterized in that, Two trenching mechanisms are provided, and both trenching mechanisms are grooved reverse scoop-shaped structures. The end face of the small end of each trenching mechanism is closed, and the large end of each trenching mechanism is open. The closed end of the small end of each trenching mechanism is respectively hinged to the bottom of both sides of the main body of the land leveling machine, and the trenching mechanism is inclinedly arranged on the bottom of both sides of the main body of the land leveling machine. A waist-shaped positioning groove is provided on one side wall of the large end of each trenching mechanism. Screws pass through the waist-shaped positioning groove to install the trenching mechanism on the main body of the land leveling machine. The waist-shaped positioning groove is arranged in the vertical direction. A notch is provided on one side wall of the closed end of each groove, and the notch matches the position of the leveling mechanism.

17. The right-angle reversing box trench self-leveling compactor according to claim 13, characterized in that, The leveling mechanism is a double opposing spiral leveling wheel, and the diameters of the spiral wheels at both ends of the double opposing spiral leveling wheel are the same.

18. The right-angle reversing box trench self-leveling compactor according to claim 13, characterized in that, The acupressure mechanism includes an acupressure shaft and an acupressure assembly; Multiple acupressure components are provided, and the multiple acupressure components are sequentially arranged on the acupressure axis along the acupressure axis. The acupressure assembly includes a pressure roller and an acupressure head. The pressure roller is disposed on the acupressure shaft, and the position between adjacent pressure rollers is adjustable. Multiple acupressure heads are sequentially disposed on the outer circumference of each pressure roller, and the radial position of the acupressure heads on the same pressure roller is adjustable.

19. The right-angle reversing box trench self-leveling compactor according to claim 13, characterized in that, The main body of the land preparation machine is also equipped with a double-acting guide control mechanism, which is located at the front of the main body of the land preparation machine. The bottom of the double-acting guide mechanism is provided with a guide wheel, and the double-acting guide mechanism is also provided with a guide wheel lifting unit for controlling the lifting and lowering of the guide wheel.

20. The right-angle reversing box trench self-leveling compactor according to claim 13, characterized in that, The main body of the land preparation machine is also equipped with a drive wheel clutch mechanism and a hydraulic transmission shaft clutch mechanism; The drive wheel clutch mechanism is used to control the engagement and disengagement of the drive wheel; The hydraulic drive shaft clutch mechanism is used to control the engagement and disengagement of the hydraulic drive shaft; Both the drive wheel clutch mechanism and the hydraulic transmission shaft clutch mechanism adopt a vertical oblique sliding structure.

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