Four-wheel-drive four-steering straw checkered sand barrier laying machine carrying wheel type stock bin
Through a four-wheel drive, four-steering grass lattice sand barrier laying machine equipped with wheeled silo and worm gear transmission, the problems of inconvenient steering of existing equipment and small silo capacity are solved, and efficient and low-cost sand barrier laying are achieved.
Patent Information
- Application Number
- CN202310690630.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-12
- Publication Date
- 2024-12-13
AI Technical Summary
The existing grass lattice sand barrier laying equipment is large and bulky and inconvenient to steering, the small equipment is simple in structure and requires manual operation and small silo capacity, resulting in low laying efficiency and high cost.
A four-wheel drive, four-steer grass lattice sand barrier laying machine equipped with wheeled silo is designed, and a flat sand trench mechanism is used to drive worm gears and worms to realize the in-situ steering and efficient laying of the equipment, increase the capacity of the silo and reduce the body size, reduce energy consumption.
In-situ steering and efficient laying on the sand are achieved, the efficiency of laying grass lattice sand barriers is improved, costs are reduced, and energy consumption is saved.
Smart Images
Figure CN119121888A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of grass grid laying ecological protection robots, and in particular relates to a four-wheel drive four-steering grass grid sand barrier laying machine equipped with a wheeled silo. Background Art
[0002] Land desertification has brought great inconvenience to people's lives. At present, straw grid sand barriers are an effective way to prevent wind and sand and conserve water. By tying wheat straw and other materials into a 1m×1m grid shape in the desert to increase the roughness of the ground, it can effectively reduce wind erosion.
[0003] After years of development, sand fixation has changed from artificial sand fixation to mechanized sand fixation. The technical means of mechanized sand fixation can not only ensure good sand control effects, but also improve the prevention and control efficiency, realize sand control by mechanical equipment, and accelerate the process of desertification control. Mechanized sand control is more scientific and efficient, plays an important role in environmental protection and ecological construction, and is worth promoting in future desert control.
[0004] At present, grass grids are mainly laid by large or small mechanical equipment. Large mechanical equipment is often huge in size, and the sand barrier laying equipment behind it is pulled by a power locomotive to lay grass grids. It is relatively bulky and inconvenient to turn; small mechanical equipment has a simple structure, but is often semi-automatic and requires manual operation. In addition, the material bin is small, and frequent material changes are required, which is time-consuming and labor-intensive. Summary of the invention
[0005] In order to overcome the shortcomings of the above-mentioned prior art, the purpose of the present invention is to provide a four-wheel drive and four-steering grass grid sand barrier laying machine equipped with a wheeled silo, which can complete the longitudinal laying of straw mats as raw materials. Its four-wheel drive and four-steering chassis design can enable the laying machine to achieve on-the-spot turning on the sand, and it has strong power; the wheeled silo it carries increases the silo capacity while reducing the horizontal footprint, greatly reducing the size of the equipment as a whole, and overcoming the defect of frequent loading of previous equipment; the transmission part of its sand leveling and ditching mechanism adopts worm gear transmission, and utilizes its self-locking characteristics to save energy consumption; the mechanical equipment adapts to the needs of the field of ecological protection engineering construction technology for wind and sand fixation, improves the efficiency of grass grid sand barrier laying and reduces costs.
[0006] In order to achieve the above object, the technical solution adopted by the present invention is:
[0007] A four-wheel drive four-steering grass grid sand barrier laying machine equipped with a wheeled silo, comprising a body, a driving system, a material storage mechanism, a sand leveling and ditching mechanism, a grass laying mechanism and a grass pressing mechanism;
[0008] The sand leveling and ditching mechanism is installed on the front half of the vehicle body, the material storage mechanism and the grass laying mechanism are installed on the middle part of the vehicle body, the grass pressing mechanism is installed on the rear half of the vehicle body, and the traveling system is installed on both sides of the bottom of the vehicle body. The traveling system drives the vehicle body to move forward and turn. The sand leveling and ditching mechanism, the grass laying mechanism and the grass pressing mechanism complete the paving work along the forward direction of the vehicle body, and the material storage mechanism completes the grass supply work.
[0009] The vehicle body includes a frame, a shock absorber upper seat, a feeding motor support, a feeding port, a silo rotating motor support, a sand leveling and ditching mechanism slide rail, a steering servo support plate, a gear box, a grass pressing swing arm support seat, a cylinder support seat, a material unloading baffle, and a lower arm support seat;
[0010] The frame is welded from a number of square steels and steel plates, with two pairs of columns in the front and rear, evenly distributed on both sides of the frame; there are three layers in the upper and lower parts, the bottom and middle layers are appropriately hollowed-out steel plates, the length and width of these two layers are equal, welded between the two pairs of columns, and the top layer is a trapezoidal support frame formed by a number of square steels that are symmetrical in the front and rear, wherein the two steel plates near the front and rear ends of the frame are slightly longer than the other square steels; there are two pairs of shock absorber upper seats, evenly distributed on both sides of the frame, located on both sides of the two longer steel plates on the top layer of the frame, the feeding motor support and the silo rotating motor support are arranged on both sides of the frame and in the middle of the vehicle body, the feed port is an inverted triangular slot formed by two trapezoids that are symmetrical in the front and rear, located on the upper part of the middle steel plate of the frame and in the middle of the vehicle body, and the flat sand opening The groove mechanism slide rail is located at the front end of the frame, and a T-shaped groove is opened on a pair of columns located between the bottom and middle steel plates. The steering servo support plate is arranged between the bottom and middle steel plates of the frame from the front to the rear of the vehicle. The gear box is arranged on the middle steel plate at the front of the frame, extends a distance from the steel plate, and is arranged to form a rectangular cavity with a number of holes opened in the cavity. The grass pressing swing arm support seat is arranged on the middle steel plate at the rear of the frame, the cylinder support seat is arranged on the bottom steel plate at the rear of the frame, and the unloading baffle is arranged in the middle of the bottom and middle steel plates of the frame. A rectangular groove is opened in the two steel plates and connected to the groove, perpendicular to the two steel plates. There are two pairs of lower arm support seats, which are evenly distributed on both sides of the frame and located on both sides of the lowest steel plate of the frame.
[0011] The driving system includes a wheel hub, a rubber tire, a flange, a hub motor, a steering knuckle, a strut shock absorber, a steering tie rod, a lower arm and a steering servo; the driving system is provided with four wheel systems which are symmetrical in front and back and left and right, and are independently installed on both sides of the vehicle body; the wheel hub is installed in the middle of the wheel as a skeleton to play a supporting role; the rubber tire has two circles of staggered patterns and is installed on the outside of the wheel hub to directly contact the ground; the flange is installed on the inside of the wheel hub, and the openings on the disc correspond to the openings on the inner side of the wheel hub one by one, and it is tightly connected to the wheel hub by several bolts; the hub motor is in the shape of a disc, and its output shaft is connected to the shaft of the flange, which drives the flange to rotate and thus drives the wheel hub to rotate, serving as the power for driving the wheel; the steering knuckle is installed on the wheel The back of the hub motor is fixedly connected to the wheel hub motor. The steering knuckle is provided with three lifting ears, which serve as a strut shock absorber support, a steering tie rod support and a lower arm support respectively. The bottom of the strut shock absorber is connected to the steering knuckle, and the top is connected to the shock absorber upper seat. One end of the steering tie rod is connected to the steering knuckle, and the other end is connected to the steering servo. The output shaft swing arm of the steering servo is parallel to the steering tie rod, and the two are connected by a universal joint. The output shaft swing arm of the steering servo drives the plane movement of the steering tie rod by rotation, and then drives the wheel to rotate; the forward movement and steering of a single wheel are realized through the power output of the wheel hub motor and the steering servo, and the four wheels can be coordinated with each other by controlling the motors uniformly through the controller, thereby realizing the forward movement and steering of the vehicle body.
[0012] The material storage mechanism includes a bin body, a bin bracket, a central rotating shaft, a material discharge turntable, a straw curtain shaft, a buckle, a straw curtain gear, a straw curtain roll, a material discharge motor box, a material discharge motor, a material discharge gear, a cylinder, a turntable motor, a small pulley, a belt, and a large pulley; the bin body is a disc with a certain thickness, and there are two of them, which are symmetrically distributed on both sides of the material storage mechanism, and each has two openings at the lower end; the bin bracket is a "U"-shaped bracket, and there are two of them, each bracket connects the two parts of the bin body respectively and is installed at the opening at the lower end of the bin body; the bin bracket is installed above the middle part of the second layer of steel plate of the frame, and the central rotating shaft is arranged on both sides of the bin body The center of the feeding turntable is provided with a keyway, through which the central rotating shaft passes, and the key is used to cooperate with the central rotating shaft, so that the feeding turntable can rotate with the central rotating shaft. There are 4 straw curtain shafts, which are arranged along the circumference between the two feeding turntables. The length of the straw curtain shaft is between the feeding turntable and the silo. The buckles are arranged along the circumference on the feeding turntable to fix and remove the straw curtain shaft. Through the cooperation of two by two, the straw curtain shaft rotates together with the unloading turntable. The straw curtain gear is fixed at one end of the straw curtain shaft, which can drive the straw curtain shaft to rotate together. The straw curtain roll is wrapped around the middle of the straw curtain shaft and can rotate with the straw curtain shaft. The unloading motor box is welded by several aluminum columns, in which the unloading motor and the unloading gear are installed. The unloading gear is installed on the output shaft of the unloading motor, and the cylinder is installed on the frame. The output shaft is connected to the bottom of the motor box. Its upward and downward extension can drive the motor box to move up and down, so that the straw curtain gear and the unloading gear are meshed. The turntable motor is installed at the position of the silo rotating motor support. The rotary table motor is a kind of rotary table that is installed in the center of the rotary table, with a small pulley installed on its output shaft, a large pulley installed at one end of the central rotating shaft, and the two pulleys are connected together by a belt; when the grass at the bottom is used up, the cylinder contracts, causing the grass curtain gear to disengage from the unloading gear, and then the turntable motor is driven to rotate the grass curtain shaft that has run out of grass to the top, and the new grass is rotated to the bottom. At this time, the cylinder extends, causing the grass curtain gear to re-engage with the unloading gear, and then the unloading motor works, causing the grass curtain gear to drive the grass curtain shaft to rotate, and the grass curtain roll completes the unloading work under the action of gravity, and this reciprocating process completes the storage and unloading work.
[0013] The grass pressing mechanism comprises a grass pressing swing arm, a grass pressing wheel and a cylinder; the grass pressing swing arm is in a "T" shape, one end of which is connected to the grass pressing swing arm support seat and can swing around it, and the other end is connected to the middle part of the grass pressing wheel, so that the grass pressing wheel can rotate freely around its rotation axis, and the outer ring of the grass pressing wheel has many folds, which are used to increase the friction when in contact with the grass, so as to better complete the grass pressing task, the lower ear of the cylinder is connected to the vehicle body, and can swing up and down around the vehicle body, and the upper output shaft is connected to the middle part of the grass pressing swing arm; when working, the cylinder contracts, driving the grass pressing swing arm to press down, and at the same time pressing the grass pressing wheel downward, so that the grass curtain laid on the ground is pressed down at the waist, and the two ends are stood up, thereby completing the grass pressing work; on the contrary, when stopping the operation, the cylinder extends, driving the grass pressing swing arm to swing up, so that the grass pressing wheel leaves the ground.
[0014] The grass-laying mechanism comprises a frame, a grass-squeezing wheel, a conveyor belt, a roller and a grass-laying motor; the circumference of the grass-squeezing wheel is covered with thorns, which can increase the friction force on the straw curtain and make it easier to unload the material without clogging. There are two grass-squeezing wheels, which are symmetrically installed on both sides, and a gap is left in the middle to ensure the smooth passage of the straw curtain. Both ends of the grass-squeezing wheel are fixed to the frame, and at one end, the two grass-squeezing wheels are each connected to a rotating motor, which have opposite rotation directions and the same rotation speed, and cooperate to move the straw curtain downward. The rollers are installed on the frame one above and one below, and the lower ends thereof are connected to the output shaft of the grass-laying motor. The conveyor belt is installed between the two rollers and moves up and down with the rolling of the rollers. There are also many thorns on the surface of the conveyor belt to increase the gripping force on the straw curtain, so as to achieve the purpose of smooth unloading. When the straw curtain moves to the bottom, it will lay a grass belt on the ground as the vehicle body moves forward, completing the grass-laying work.
[0015] The sand leveling and ditching mechanism comprises a worm motor, gear I, gear II, a worm, a worm wheel, gear III, a turbine shaft, a rack, a sand leveling plate and a ditching knife; the worm motor is arranged above the gear box, the motor base is fixed to the upper surface of the gear box, gear I is mounted on the worm motor output shaft, gear II is mounted on the worm shaft, and gear II is meshed with gear I, the worm wheel is meshed with the worm, the worm wheel is mounted on the worm wheel shaft, wherein the worm wheel shaft and the worm axis are perpendicular to each other and are staggered axes, gear III and the worm wheel are mounted on the worm wheel shaft together, the rack is meshed with gear III, the rack is fixedly connected to the sand leveling plate, four extension shafts are arranged on the inner side of the sand leveling plate, the shaft head is provided with sliders, and the four sliders cooperate with the slide rails of the sand leveling and ditching mechanism to ensure that the sand leveling plate only slides in the vertical direction The sand-leveling surface on the lower side of the sand-leveling board is designed as a "V"-shaped surface. This design can make the sand be pushed to both sides instead of pushing the sand forward, reducing the resistance of the sand to the vehicle body and saving energy loss. The trenching knife is fixedly installed on the inner side of the sand-leveling board. The knife head is lower than the sand-leveling board, and the distance from the knife head to the bottom of the sand-leveling board is the trenching depth; when working, the worm motor rotates, driving the worm gear to rotate, thereby driving the gear rack to move, so that the sand-leveling board can move up and down. When reaching the specified height, the worm motor stops. According to the self-locking characteristics of the worm gear under certain conditions, the position of the sand-leveling board is fixed. When stopping working, the worm motor reverses, the sand-leveling board rises, and the motor stops when it reaches a safe height.
[0016] Beneficial effects of the present invention:
[0017] (1) The present invention adopts a four-wheel drive and four-steering power chassis design, which can enable the paving machine to achieve on-site steering, overcoming the problem of inconvenience of large equipment turning on small terrain. In addition, each wheel is equipped with a hub motor, making the paving machine more powerful.
[0018] (2) The present invention is equipped with a wheeled silo as a material storage mechanism, which increases the material storage capacity while reducing the horizontal floor space, making the paving machine more compact.
[0019] (3) The present invention adopts a worm gear transmission in the transmission part of the sand leveling and ditching mechanism, and utilizes its self-locking characteristics. When the sand leveling plate reaches the specified height, the motor stops working, which can also ensure that the sand leveling plate remains at the target height, thereby saving energy consumption and enhancing the endurance of the paving machine. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 The overall structure of the present invention is schematically shown in FIG.
[0021] Figure 2 Schematic diagram of the vehicle body side structure of the present invention
[0022] Figure 3 Schematic diagram of the rear side structure of the vehicle body of the present invention
[0023] Figure 4 Schematic diagram of the driving system structure of the present invention
[0024] Figure 5 Schematic diagram of the material storage mechanism structure of the present invention
[0025] Figure 6 The straw curtain rod structure schematic diagram of the present invention is
[0026] Figure 7 The schematic diagram of the grass pressing mechanism structure of the present invention is
[0027] Figure 8 The schematic diagram of the grass laying mechanism structure of the present invention is
[0028] Fig. 9 This is a schematic diagram of the structure of the sand leveling and ditching mechanism of the present invention.
[0029] Fig.10 Schematic diagram of the internal structure of the gear box of the flat sand ditching mechanism of the present invention
[0030] Fig.11 Schematic diagram of the laying effect 1 of the present invention
[0031] Fig.12 Schematic diagram of the laying effect 2 of the present invention Implementation
[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0033] like Figure 1 As shown, a structural schematic diagram of a four-wheel drive four-steering grass grid sand barrier laying machine equipped with a wheeled silo includes a body 1, a driving system 2, a material storage mechanism 3, a grass pressing mechanism 4, a grass laying mechanism 5 and a sand leveling and ditching mechanism 6. The sand leveling and ditching mechanism 6 is installed on the front half of the body 1, the material storage mechanism 3 and the grass laying mechanism 5 are installed in the middle of the body 1, the grass pressing mechanism 4 is installed in the rear half of the body 1, and the driving system 2 is installed on both sides of the bottom of the body 1. The driving system drives the body 1 to move forward and turn, and the sand leveling and ditching mechanism 6, the grass laying mechanism 5, and the grass pressing mechanism 4 complete the laying work along the forward direction of the body 1, and the material storage mechanism 3 completes the grass supply work. The execution of the laying machine's actions is controlled by the control panel.
[0034] The laying machine is powered by electricity, and the power storage device is installed in the space between the bottom layer and the middle layer of the vehicle body 1. The energy source is mainly charging and supplemented by solar energy conversion. The charging port is installed in the middle of the vehicle body, and the solar panel is installed on the upper part of the vehicle body 1 exposed to the sky.
[0035] like Figure 2 , Figure 3As shown, the vehicle body 1 includes a frame 101, a shock absorber upper seat 102, a feeding motor support 103, a feed port 104, a silo rotating motor support 105, a sand leveling and ditching mechanism slide rail 106, a steering servo support plate 107, a gear box 108, a grass pressing swing arm support seat 109, a cylinder 1 support seat 110, a material unloading baffle 111, and a lower arm support seat 112. The frame 101 is welded from a number of square steels and steel plates, with two pairs of columns in the front and rear, evenly distributed on both sides of the frame; there are three layers in the upper and lower parts, the bottom and middle layers are appropriately hollowed-out steel plates, the length and width of these two layers are equal, welded between the two pairs of columns, the top layer is a trapezoidal support frame surrounded by a number of square steels that are symmetrical in the front and rear, wherein the two steel plates near the front and rear ends of the frame 101 are slightly longer than the other square steels; there are two pairs of shock absorber upper seats 102, evenly distributed on both sides of the frame 101, located on both sides of the two longer steel plates on the top layer of the frame 101, the feeding motor support 103 and the silo rotating motor support 105 are arranged on both sides of the frame 101, and are located in the middle of the vehicle body 1, the feed port 104 is an inverted triangular slot surrounded by two trapezoids that are symmetrical in the front and rear, located on the upper part of the middle steel plate of the frame 101, and located in the middle of the vehicle body 1, the flat sand ditching mechanism slide rail 106 A T-shaped groove is opened on a pair of columns located at the front end of the frame 101 and between the bottom and middle steel plates. The steering servo support plate 107 is arranged between the bottom and middle steel plates of the frame 101 from the front to the rear. The gear box 108 is arranged on the middle steel plate at the front of the frame 101, extends a distance from the steel plate, and is arranged to form a rectangular cavity with a number of holes opened in the cavity. The grass pressing swing arm support seat 109 is arranged on the middle steel plate at the rear of the frame 101. The cylinder 1 support seat 110 is arranged on the bottom steel plate at the rear of the frame 101. The unloading baffle 111 is arranged in the middle of the bottom and middle steel plates of the frame 101. A rectangular groove is opened in the two steel plates and connected to the groove, perpendicular to the two steel plates. There are two pairs of lower arm support seats 112, which are evenly distributed on both sides of the frame 101 and located on both sides of the lowest steel plate of the frame 101. The vehicle body 1 also serves as an independent suspension in the entire chassis of the laying machine, and together with the four wheels constitutes the power chassis of the entire machine.
[0036] like Figure 4As shown, the travel system 2 includes a wheel hub 201 , a rubber tire 202 , a flange 203 , a wheel hub motor 204 , a steering knuckle 205 , a strut shock absorber 206 , a steering tie rod 207 , a lower arm 208 and a steering servo 209 . The driving system 2 is provided with four wheel systems which are symmetrical in front and back and left and right, and are independently installed on both sides of the vehicle body 1; the wheel hub 201 is installed in the middle of the wheel as a skeleton and plays a supporting role; the rubber tire 202 has two circles of staggered patterns and is installed on the outside of the wheel hub 201 to directly contact the ground; the flange 203 is installed on the inside of the wheel hub 201, and the openings on the disk correspond to the openings on the inner side of the wheel hub 201 one by one, and it is tightly connected to the wheel hub 201 by several bolts; the wheel hub motor 204 is in the shape of a disk, and its output shaft is connected to the axis of the flange 203, driving the flange 203 to rotate and thus driving the wheel hub 201 to rotate, serving as the power for driving the wheel; the steering knuckle 205 is installed on the back of the wheel hub motor 204 and is fixedly connected to the wheel hub motor 204, and the steering knuckle 205 is provided with three The bottom of the strut-type shock absorber 206 is connected to the steering knuckle 205, and the top is connected to the shock absorber upper seat 102. One end of the steering tie rod 207 is connected to the steering knuckle 205, and the other end is connected to the steering servo 209. The output shaft swing arm of the steering servo 209 is parallel to the steering tie rod 207, and the two are connected by a universal joint. The output shaft swing arm of the steering servo 209 drives the steering tie rod 207 to move in the plane by rotating, and then drives the wheel to rotate; the power output of the wheel hub motor 204 and the steering servo 209 can realize the forward movement and steering of a single wheel, and the controller can control each motor in a unified manner to realize the mutual cooperation of the four wheels, thereby realizing the forward movement and steering of the vehicle body 1.
[0037] When paving, the driving system 2 keeps driving in a straight line, and the wheel hub motor 204 has the same speed; when turning a wide bend, the two rear wheels keep moving forward, and the two front wheels achieve a uniform deflection angle under the control of the controller. The turning range of the vehicle body can be achieved by adjusting the uniform deflection angle of the two front wheels; when turning in place, the two front wheels turn inward, and the two rear wheels also turn inward, and the four wheels are connected to form an approximate circle. The rotation direction of each wheel is in the same direction of the circle (clockwise or counterclockwise), so that turning in place can be achieved. The steering and speed of the wheels are adjusted by a unified controller.
[0038] like Figure 5As shown, the storage mechanism 3 includes a silo body 301, a silo bracket 302, a central rotating shaft 303, a discharge turntable 304, a straw curtain shaft 305, a buckle 306, a straw curtain gear 307, a straw curtain roll 308, a discharge motor box 309, a discharge motor 310, a discharge gear 311, a cylinder 312, a turntable motor 313, a small pulley 314, a belt 315, and a large pulley 316. The silo body 301 is a disc with a certain thickness, and there are two of them, which are symmetrically distributed on both sides of the storage mechanism, and each has two openings at the lower end. The silo bracket 302 is a "U"-shaped bracket, and there are two of them. Each bracket connects the two parts of the silo body 301 respectively and is installed at the opening at the lower end of the silo body 301. The silo bracket 302 is installed above the middle part of the second layer of steel plate of the frame 101. The central rotating shaft 303 is set between the two parts of the silo body 301 and passes through them. At the contact part between the central rotating shaft 303 and the silo body 301, Each uses a bearing (not shown in the figure), so that the central rotating shaft 303 can rotate relative to the warehouse body 301. There are two unloading turntables 304, which are symmetrically arranged between the warehouse bodies 301. There is an opening in the center and a keyway. The central rotating shaft 303 passes through it and cooperates with it through a key, so that the unloading turntable 304 can rotate with the central rotating shaft 303. There are four straw curtain shafts 305, which are arranged in a circle between the two unloading turntables 304. The length of the straw curtain shaft is between the unloading turntable 304 and the warehouse body 301. The buckles 306 are arranged in a circular array on the unloading turntable 304 to fix and remove the straw curtain shaft 305. The buckles 306 cooperate with each other to realize that the straw curtain shaft 305 rotates together with the unloading turntable 304. The straw curtain gear 307 is fixed to one end of the straw curtain shaft 305 and can drive the straw curtain shaft 305 to rotate together. The straw curtain roll 308 is wound around the middle of the straw curtain shaft 305 and can rotate together with the straw curtain shaft 308. The unloading motor box 309 is welded by a number of aluminum columns, in which the unloading motor 310 and the unloading gear are installed. 311, the unloading gear is installed on the output shaft of the unloading motor 310, the cylinder 312 is installed on the frame 101, and the output shaft is connected to the bottom of the motor box 309. Its upward and downward extension can drive the motor box 309 to move up and down, so that the straw curtain gear 307 and the unloading gear 311 are engaged. The turntable motor 313 is installed at the position of the silo rotating motor support 105, and a small pulley 314 is installed on its output shaft, and a large pulley 316 is installed at one end of the central rotating shaft 303, and the two pulleys are connected together by a belt 315.
[0039] It should be noted that if Figure 6As shown, the straw curtain shaft 305, the straw curtain gear 307 and the bearing installed at the buckle position (not shown in the figure) should be an assembly. When there is no fault, the three should not be disassembled at will. When installing or removing the straw curtain shaft 305, the three should be installed or removed as a whole at the same time. When the grass at the bottom is used up, the cylinder 312 contracts, so that the straw curtain gear 307 is disconnected from the unloading gear 311, and then the turntable motor 313 is driven to rotate the straw curtain shaft 305 that has run out of grass to the top, and the new grass rotates to the bottom. At this time, the cylinder 312 extends, so that the straw curtain gear 307 is re-engaged with the unloading gear 311, and then the unloading motor 310 works, so that the straw curtain gear 307 drives the straw curtain shaft 305 to rotate, and the straw curtains of the straw curtain roll 308 complete the unloading work under the action of gravity, and the storage and unloading work are completed in this reciprocating manner. When all the straw mats in the storage mechanism 3 are used up, the buckle 306 is manually opened to remove the part of the straw mat shaft 305 that has been used up; the new straw mat shaft 305 with the straw mat roll 308 should be reinstalled in the buckle 306 on the unloading turntable 304 by manual or other equipment.
[0040] like Figure 7 As shown, the grass pressing mechanism 4 includes a grass pressing swing arm 401 , a grass pressing wheel 402 and a cylinder 403 . The grass pressing swing arm 401 is in a "T" shape, one end of which is connected to the grass pressing swing arm support seat 109 and can swing up and down around it, and the other end is connected to the middle part of the grass pressing wheel 402, so that the grass pressing wheel 402 can rotate freely around its rotation axis. The outer ring of the grass pressing wheel 402 has many wrinkles, which are used to increase the friction when in contact with the grass, so as to better complete the grass pressing task. The lower ear of the cylinder 403 is connected to the vehicle body 1 and can swing up and down around the vehicle body 1, and the upper output shaft is connected to the middle part of the grass pressing swing arm 401; when working, the cylinder 403 contracts, driving the grass pressing swing arm 401 to press down, and at the same time pressing the grass pressing wheel 302 downward, so that the grass curtain laid on the ground is pressed down at the waist, and the two ends are stood up, thereby completing the grass pressing work; on the contrary, when stopping the operation, the cylinder 403 extends, driving the grass pressing swing arm 401 to swing up, so that the grass pressing wheel 402 leaves the ground.
[0041] like Figure 8As shown, the grass-laying mechanism 5 includes a frame 101 , a grass-squeezing wheel 501 , a conveyor belt 502 , a roller 503 and a grass-laying motor 504 . The circumference of the grass squeezing wheel 501 is covered with thorns, which can increase the friction on the straw curtain and make it easier to unload the material without clogging. There are two grass squeezing wheels, which are symmetrically installed on both sides, and a gap is left in the middle to ensure the smooth passage of the straw curtain. Both ends of the grass squeezing wheel 501 are fixed on the frame 101, and at one end, the two grass squeezing wheels are each connected to a rotating motor (not shown in the figure), which have opposite rotation directions and the same rotation speed, and cooperate to move the straw curtain downward. The rollers 503 are installed on the frame 101 one above and one below, and the lower ends thereof are connected to the output shaft of the grass-laying motor 504. The conveyor belt 502 is installed between the two rollers 503 and moves up and down with the rolling of the rollers 503. There are also many thorns on the surface of the conveyor belt to increase the gripping force on the straw curtain so as to achieve the purpose of smooth unloading. When the straw curtain moves to the bottom, it will lay a grass belt on the ground as the vehicle body 1 moves forward, completing the grass-laying work.
[0042] like Fig. 9 , Fig.10 As shown, the sand leveling and ditching mechanism 4 includes a worm motor 601, a gear 602, a gear 603, a worm 604, a worm wheel 605, a gear 606, a turbine shaft 607, a rack 608, a sand leveling plate 609 and a ditching knife 610. The worm motor 601 is arranged above the gear box 108, and the motor base is fixed to the upper surface of the gear box 108. The gear 602 is mounted on the output shaft of the worm motor 601, and the gear 603 is mounted on the shaft of the worm 604, and the gear 603 is meshed with the gear 602, and the worm wheel 605 is meshed with the worm 604. The worm wheel 605 is mounted on the worm wheel shaft 607, wherein the worm wheel shaft 607 and the axis of the worm 604 are perpendicular to each other and are staggered axes. The gear 606 and the worm wheel 605 are mounted on the worm wheel shaft 607 together, and the rack 608 is meshed with the gear 606. 608 is fixedly connected to the sand-leveling board 609. There are four extended shafts on the inner side of the sand-leveling board 609, and there are sliders on the shaft heads. The four sliders cooperate with the sand-leveling ditching mechanism slide rail 106 to ensure that the sand-leveling board 609 only slides in the vertical direction. The sand-leveling surface on the lower side of the sand-leveling board 609 is designed as a "V"-shaped surface. This design can make the sand be pushed to both sides instead of pushing the sand forward, reducing the resistance of the sand to the vehicle body and saving energy loss. The ditching knife 610 is fixedly installed on the inner side of the sand-leveling board 609, the knife head is lower than the sand-leveling board, and the distance from the knife head to the bottom of the sand-leveling board is the ditching depth.
[0043] When working, the worm motor 601 rotates, driving the worm gear to rotate, thereby driving the gear rack to move, so that the sand-leveling plate moves up and down. When reaching the specified height, the worm motor 601 stops. According to the self-locking characteristics of the worm gear under certain conditions, the position of the sand-leveling plate 609 is fixed. When stopping working, the worm motor 601 reverses, and the sand-leveling plate 609 rises. When reaching a safe height, the motor stops. When the sand-leveling ditching mechanism is working or not working, the transmission design of the worm gear, due to its self-locking characteristics, can keep the sand-leveling ditching mechanism at a specified height without moving without starting the motor, saving energy.
[0044] like Fig.11 As shown, it is a schematic diagram of the laying effect 1 of the present invention. Starting from the starting point, the laying is first performed in the direction indicated by the solid line. When a certain number of solid lines are laid, the laying is then performed in the direction indicated by the dotted line. The angle between the two directions is 90 degrees. This laying method is more common and is suitable for wide desert areas.
[0045] like Fig.12 As shown, it is a schematic diagram of the laying effect 2 of the present invention. Starting from the starting point, the laying is first carried out in the direction shown by the solid line. After laying one meter, it is necessary to turn on the spot and lay in the next direction at 90 degrees from the previous direction, which generally presents a "U"-shaped laying; when reaching a certain distance, it starts to lay in the direction opposite to the solid line, that is, the dotted line direction, which is the same as the solid line laying method, and is also a "U"-shaped laying, and the grass laid in the solid line direction just forms a 1m×1m grass grid. This method is suitable for desert areas with limited terrain.
[0046] When the paving machine is working, the motor 601 is started first to drive the worm gear to place the sand leveling plate 609 and the trenching knife 610 of the sand leveling and trenching mechanism 6 down to a position flush with the ground, and then the travel system 2 is started, the whole machine moves forward at a suitable speed and plows a gully on the sand. At the same time, the storage mechanism 3 starts to work, the turntable motor 313 rotates, so that one of the straw curtain shafts 305 with the straw curtain roll rotates to the bottom, and then the cylinder 312 rises to make the unloading gear 311 The straw mat gear 307 of the straw mat shaft is meshed with the straw mat gear 307, driving the straw mat shaft 305 to rotate. The open end of the straw mat will enter the groove of the grass laying mechanism 5 under the action of gravity, and then the grass squeezing wheel 501 and the conveyor belt 502 with thorns will bring the straw mat to the bottom and finally spread it flat on the sand. Then, the grass pressing mechanism 4 at the rear starts to move, and the cylinder 403 contracts, so that the grass pressing wheel 402 can press the straw mat into the sand with a suitable pressure, and the straw mat is erected from the middle to complete the laying.
Claims
1. A four-wheel drive four-steering grass checkered sand barrier laying machine equipped with a wheeled silo, characterized in that: It comprises a vehicle body (1), a travel system (2), a material storage mechanism (3), a grass pressing mechanism (4), a grass laying mechanism (5) and a sand flattening and ditching mechanism (6); The sand leveling and ditching mechanism (6) is installed on the front half of the vehicle body (1), the material storage mechanism (3) and the grass laying mechanism (5) are installed on the middle part of the vehicle body (1), and the grass pressing mechanism (4) is installed on the rear half of the vehicle body (1). The driving system (2) is installed on both sides of the bottom of the vehicle body (1). The driving system drives the vehicle body (1) to move forward and turn. The sand leveling and ditching mechanism (6), the grass laying mechanism (5) and the grass pressing mechanism (4) complete the laying work along the forward direction of the vehicle body (1), and the material storage mechanism (3) completes the grass supply work.
2. A four-wheel drive four-steering grass checkered sand barrier laying vehicle equipped with a wheeled silo according to claim 1, characterized in that: The vehicle body (1) comprises a vehicle frame (101), a shock absorber upper seat (102), a feeding motor support (103), a feeding port (104), a silo rotating motor support (105), a sand leveling and ditching mechanism slide rail (106), a steering servo support plate (107), a gear box (108), a grass pressing swing arm support seat (109), a cylinder support seat (110), a material discharge baffle (111), and a lower arm support seat (112); The frame (101) is welded from a plurality of square steels and steel plates, and has two pairs of columns at the front and rear, evenly distributed on both sides of the frame; the bottom and middle layers are appropriately hollowed-out steel plates, and the two layers are equal in length and width and are welded between the two pairs of columns; the top layer is a trapezoidal support frame formed by a plurality of square steels symmetrically arranged at the front and rear ends, wherein the two steel plates near the front and rear ends of the frame (101) are slightly longer than the other square steels; the shock absorber upper seats (102) have two pairs, evenly distributed On both sides of the frame (101), on both sides of the two longer steel plates at the top of the frame (101), a feeding motor support (103) and a silo rotating motor support (105) are arranged on both sides of the frame (101) and located in the middle of the vehicle body (1); a feed inlet (104) is an inverted triangular slot formed by two trapezoidal shapes symmetrically arranged in front and back, located in the upper part of the middle steel plate of the frame (101) and located in the middle of the vehicle body (1); a flat sand ditching mechanism slide rail (106) A pair of uprights located at the front end of the vehicle frame (101) and between the bottom and middle steel plates are provided with T-shaped grooves. A steering servo support plate (107) is provided between the bottom and middle steel plates of the vehicle frame (101) from the front to the rear. A gear box (108) is provided on the middle steel plate at the front of the vehicle frame (101), extending a distance from the steel plate and provided to form a rectangular cavity. A plurality of holes are provided in the cavity. A grass pressing swing arm support seat (109) is provided. The cylinder support seat (110) is arranged on the bottom steel plate at the rear of the frame (101), and the material removal baffle (111) is arranged in the middle of the bottom and middle steel plates of the frame (101). A rectangular groove is opened in the two steel plates and connected to the groove, and is perpendicular to the two steel plates. There are two pairs of lower arm support seats (112), which are evenly distributed on both sides of the frame (101) and located on both sides of the lowest steel plate of the frame (101).
3. A four-wheel drive four-steering grass checkered sand barrier laying vehicle equipped with a wheeled silo according to claim 1, characterized in that: The travel system (2) comprises a wheel hub (201), a rubber tire (202), a flange (203), a wheel hub motor (204), a steering knuckle (205), a strut-type shock absorber (206), a steering tie rod (207), a lower arm (208) and a steering servo (209); The travel system (2) is provided with four wheel systems that are symmetrical in front and back and left and right, and are independently mounted on both sides of the vehicle body (1); the wheel hub (201) is mounted in the middle of the wheel and serves as a frame to play a supporting role; the rubber tire (202) has two interlaced circles of patterns and is mounted on the outside of the wheel hub (201) to directly contact the ground; the flange (203) is mounted on the inside of the wheel hub (201); the openings on the disk correspond to the openings on the inside of the wheel hub (201) one by one, and the flange (203) is tightly connected to the wheel hub (201) by several bolts; the wheel hub motor (204) is in the shape of a disk, and its output shaft is connected to the shaft of the flange (203), driving the flange (203) to rotate and thereby driving the wheel hub (201) to rotate, serving as the power to drive the wheel; the steering knuckle (205) is mounted on the back of the wheel hub motor (204) and is fixedly connected to the wheel hub motor (204); the steering knuckle (205) is provided with Three lifting ears are arranged, which respectively serve as a support for a strut-type shock absorber (206), a support for a steering tie rod (207) and a support for a lower arm (208). The bottom of the strut-type shock absorber (206) is connected to a steering knuckle (205), and the top is connected to a shock absorber upper seat (102). One end of the steering tie rod (207) is connected to the steering knuckle (205), and the other end is connected to a steering servo (209). The output shaft swing arm of the steering servo (209) is parallel to the steering tie rod (207), and the two are connected through a universal joint. The output shaft swing arm of the steering servo (209) drives the steering tie rod (207) to move in a plane through rotation, thereby driving the wheel to rotate. The power output of the wheel hub motor (204) and the steering servo (209) realizes the forward movement and steering of a single wheel. The controller controls the motors in a unified manner, so that the four wheels can cooperate with each other, thereby realizing the forward movement and steering of the vehicle body (1).
4. A four-wheel drive four-turn grass checkered sand barrier laying vehicle equipped with a wheeled silo according to claim 1, characterized in that: The material storage mechanism (3) comprises a bin body (301), a bin support (302), a central rotating shaft (303), a material discharge turntable (304), a straw curtain shaft (305), a buckle (306), a straw curtain gear (307), a straw curtain roll (308), a material discharge motor box (309), a material discharge motor (310), a material discharge gear (311), a cylinder (312), a turntable motor (313), a small pulley (314), a belt (315), and a large pulley (316); The silo body (301) is in the shape of a disk with a certain thickness, and there are two of them, which are symmetrically distributed on both sides of the material storage mechanism, and each of them has two openings at the lower end. The silo bracket (302) is a "U"-shaped bracket, and there are two of them. Each bracket connects the two parts of the silo body (301) and is installed at the opening at the lower end of the silo body (301). The silo bracket (302) is installed above the middle of the second layer of steel plate of the frame (101). The central rotating shaft (303) is set in the middle of the two parts of the silo body (301) and passes through them. At the contact part between the central rotating shaft (303) and the silo body (301), each uses A bearing (not shown) is provided so that the central rotating shaft (303) can rotate relative to the bin body (301). There are two unloading turntables (304) symmetrically arranged between the bin bodies (301). The center of the unloading turntables (304) has an opening and a keyway. The central rotating shaft (303) passes through the opening and cooperates with the key so that the unloading turntable (304) can rotate with the central rotating shaft (303). There are four straw curtain shafts (305) arranged in a circular array between the two unloading turntables (304). The length of the straw curtain shaft is between the unloading turntable (304) and the bin body (301). The buckle (30 6) are arranged along the circumference on the unloading turntable (304) to fix and remove the straw curtain shaft (305). The buckles (306) cooperate with each other in pairs to realize that the straw curtain shaft (305) rotates together with the unloading turntable (304). The straw curtain gear (307) is fixed to one end of the straw curtain shaft (305) and can drive the straw curtain shaft (305) to rotate together. The straw curtain roll (308) is wound around the middle of the straw curtain shaft (305) and can rotate together with the straw curtain shaft (308). The unloading motor box (309) is welded by a plurality of aluminum columns, in which the unloading motor (310) and the unloading gear (311) are installed. 1), the unloading gear is installed on the output shaft of the unloading motor (310), the cylinder (312) is installed on the frame (101), the output shaft is connected to the bottom of the motor box (309), and the upward and downward extension of the cylinder (312) can drive the motor box (309) to move up and down, so that the straw curtain gear (307) and the unloading gear (311) are meshed, and the turntable motor (313) is installed at the position of the silo rotating motor support (105), and a small pulley (314) is installed on its output shaft, and a large pulley (316) is installed at one end of the central rotating shaft (303), and the two pulleys are connected together by a belt (315).
5. The four-wheel drive four-steering grass checkered sand barrier laying vehicle equipped with a wheeled silo according to claim 1, characterized in that: The grass pressing mechanism (4) comprises a grass pressing swing arm (401), a grass pressing wheel (402) and a cylinder (403); The grass pressing swing arm (401) is in a "T" shape, one end of which is connected to the grass pressing swing arm support seat (109) and can swing up and down around it, and the other end is connected to the middle part of the grass pressing wheel (402), so that the grass pressing wheel (402) can rotate freely around its rotation axis. The outer ring of the grass pressing wheel (402) has many wrinkles to increase the friction force when contacting with grass, so as to better complete the grass pressing task. The lower ear of the cylinder (3) is connected to the body (1) and can swing up and down around the body (1). The upper output shaft is connected to the middle part of the grass pressing swing arm (401).
6. A four-wheel drive four-steering grass checkered sand barrier laying vehicle equipped with a wheeled silo according to claim 1, characterized in that: The grass-laying mechanism (5) comprises a frame (101), a grass-squeezing wheel (501), a conveyor belt (502), a roller (503) and a grass-laying motor (504); The circumference of the grass squeezing wheel (501) is covered with thorns, which can increase the friction force on the straw curtain and make it easier to unload the material without clogging. There are two grass squeezing wheels, which are symmetrically installed on both sides, and a gap is left in the middle to ensure that the straw curtain can pass smoothly. Both ends of the grass squeezing wheel (501) are fixed on the frame (101), and at one end, the two grass squeezing wheels are each connected to a rotating motor (not shown in the figure), which rotates in opposite directions and has the same rotation speed, and cooperates to move the straw curtain downward. The rollers (503) are installed on the frame (101) one above and one below, and the lower ends of the rollers are connected to the output shaft of the grass laying motor (504). The conveyor belt (502) is installed between the two rollers (503) and moves up and down with the rolling of the rollers (503). The surface of the conveyor belt is also provided with many thorns to increase the gripping force on the straw curtain, so as to achieve the purpose of smooth unloading. When the straw curtain moves to the bottom, it will lay a grass belt on the ground as the vehicle body (1) moves forward, completing the grass laying work.
7. The four-wheel drive four-steering grass checkered sand barrier laying vehicle equipped with a wheeled silo according to claim 1, characterized in that: The sand leveling and ditching mechanism (4) comprises a worm motor (601), a gear (602), a gear (603), a worm (604), a worm wheel (605), a gear (606), a turbine shaft (607), a rack (608), a sand leveling plate (609) and a ditching knife (610); The worm motor (601) is arranged above the gear box (108), the motor base is fixed on the upper surface of the gear box (108), the gear (602) is mounted on the output shaft of the worm motor (601), the gear (603) is mounted on the shaft of the worm (604), the gear (603) is meshed with the gear (602), the worm wheel (605) is meshed with the worm (604), the worm wheel (605) is mounted on the worm wheel shaft (607), wherein the worm wheel shaft (607) and the axis of the worm (604) are perpendicular to each other and are staggered axes, the gear (606) and the worm wheel (605) are mounted together on the worm wheel shaft (607), and the rack (608) is connected to the rack. The gears (606) are meshed with each other, and the rack (608) is fixedly connected to the sand-leveling plate (609). The sand-leveling plate (609) has four extended shafts on the inner side, and the shaft heads have sliders. The four sliders cooperate with the sand-leveling ditching mechanism slide rails (106) to ensure that the sand-leveling plate (609) only slides in the vertical direction. The sand-leveling surface on the lower side of the sand-leveling plate (609) is designed as a "V"-shaped surface. This design allows the sand to be pushed to both sides instead of pushing the sand forward, thereby reducing the resistance of the sand to the vehicle body and saving energy loss. The ditching knife (610) is fixedly installed on the inner side of the sand-leveling plate (609), the knife head is lower than the sand-leveling plate, and the distance from the knife head to the bottom surface of the sand-leveling plate is the ditching depth.