A light sand-fixing grass grid machine

Abstract

The present invention relates to a light sand-fixing grass grid machine, which uses a walking tractor as a driving force. The walking tractor has two extended output shafts, and the side of the wheel cutter installed on the output shaft is coaxially installed with the flange on the sand-scraping wheel; angle steels are evenly fixed on the flange; a dustpan is fixed in front of the walking tractor; and a tail rod is installed at the rear of the walking tractor. Problems to be solved: difficulty in climbing in the desert; high power consumption; high turning resistance; inconsistent walking speeds of front and rear wheels; sand-scraping wheels that destroy the formed grass strips; backward tilt and slope slip caused by unbalanced front and rear forces; high labor intensity for operators; low efficiency; high cost, etc.

Description

Technical Field

[0001] The present application relates to the field of desert control, and in particular to a light mechanical device for making grass grids for desert control. Background Art

[0002] Desertification control is a major global issue. Using grass grids to fix sand is very effective.

[0003] The terrain dunes are steep and the ground is soft, so walking is the first major difficulty faced by mechanical sand fixation. The sand dunes are undulating and the ground is soft, making it difficult for mechanical products to move, which is the main reason for the failure of various mechanical sand control devices.

[0004] Existing products include large traction grass grid machines, which have high power consumption, are not suitable for desert control with large slopes, and are not very efficient.

[0005] The existing products include light hand-held tractor-driven sand-fixing grass grid machines. However, since the sand-scraping wheel touches the ground when working, it will damage the grass wall and make it difficult to turn. There is also an imbalance of front and rear forces. When the tractor is moving, there will be a reaction force. When going uphill, there will be a reverse torque due to the center of gravity moving backward. It is particularly difficult to lift the handlebars when waiting for an opportunity. When going downhill, there is a landslide phenomenon and it is impossible to control it. Summary of the invention

[0006] A light sand-fixing grass grid machine includes a walking tractor, and is characterized in that the walking tractor has two output shafts, each having a hub mounting flange; the hub mounting flange is mounted on a wheel cutter by bolts; the side of the wheel cutter is coaxially mounted with a flange on a sand scraping wheel, and angle steels are evenly fixed on the flange; a dustpan is fixed in front of the walking tractor; and a tail rod is arranged at the rear of the walking tractor.

[0007] The difference between the wheel cutter radius and the flange outer circle radius is greater than 180 mm.

[0008] The tail rod includes a cross bar, which is connected to the rear of the walk-behind tractor by a pin 1 at the front end of the cross bar and connected to the bent rod by a pin 2 at the rear end of the cross bar. A baffle is provided above the rear end of the cross bar, and a pin 3 is provided below the rear end of the cross bar. A vertical rod is fixed on the baffle, and a tension spring is connected between the vertical rod and the bent rod.

[0009] In a possible design, one side of the angle steel is tangent to the flange.

[0010] In a possible design, the angle between the two sides of the angle steel is greater than 100 degrees and less than 120 degrees.

[0011] In a possible design, the angle steel has a length of 450-800 mm.

[0012] In a possible design, inclined plates are fixed in front of both sides of the dustpan.

[0013] In a possible design, the material of the wheel cutter is a steel plate.

[0014] In a possible design, the thickness of the wheel cutter is 3.5-5.5 mm.

[0015] In a possible design, the angle steel is a flat plate.

[0016] In a possible design, the angle steel is a curved plate.

[0017] In a possible design, the walking tractor output shaft is an extended shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A front view of a light sand-fixing grass grid machine provided in the present application in a specific embodiment;

[0019] Figure 2 for Figure 1 A top view of

[0020] Figure 3 It is a top view of a dustpan;

[0021] Figure 4 is a front view of a dustpan;

[0022] Figure 5 This is the front view of the wheel cutter and the sand scraper assembly;

[0023] Figure 6 It is the side view of the wheel cutter and the sand scraper assembly;

[0024] Figure 7 It is a side view of the sand-scraping wheel;

[0025] Figure 8 Schematic diagram of the tail boom.

[0026] Reference numerals:

[0027] 1-Walking tractor.

[0028] 101-Output shaft.

[0029] 102- Hub mounting flange.

[0030] 2-Sand wheel.

[0031] 201-Flange.

[0032] 202-Angle steel.

[0033] 3-Wheel knife.

[0034] 301-Mounting hole.

[0035] 4- Dustpan.

[0036] 401- inclined plate.

[0037] 5- Bolts.

[0038] 6-Tail rod.

[0039] 601-Crank lever.

[0040] 602-tension spring.

[0041] 603-Pole.

[0042] 604-second pin shaft.

[0043] 605-third pin.

[0044] 606- horizontal bar.

[0045] 607-Baffle.

[0046] 7-First pin

[0047] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0048] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0049] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0050] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "the" and "said" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0051] The present application provides a light sand-fixing grass grid machine, such as Figure 1-Figure 8As shown. Its working method is to replace the wheels of the hand tractor 1 with two wheel cutters 3. During the walking process, since the desert is soft, with the help of gravity, the wheel cutters 3 roll the grass spread on the ground into the ground, and the two ends of the grass stand upright to form a continuous grass belt. The vertical and horizontal intersections can form a grass grid. The side length of the grass grid is between 750mm-1200mm, and the depth of the grass rolled into by the wheel cutters 3 is 100mm-150mm, which is the best effect for windbreak and sand fixation. Using the wheel cutter 3 instead of the manual shovel work increases the efficiency by almost 10 times, while reducing the labor intensity of the workers.

[0052] The walking tractor 1 is selected because it is light, flexible in turning, and suitable for working in the desert. The two output shafts 101 of the walking tractor 1 are of an extended type. This has the advantage that by adjusting the hub mounting flanges 102 on the two output shafts 101, the distance between the two wheel cutters 3 can be directly adjusted, that is, the side length of the grass grid is determined. Generally, the hub mounting flange 102 is brought by the manufacturer with the vehicle. There are five holes on the hub mounting flange 102, which correspond to the mounting holes 301 on the wheel cutter 3, and can be connected with bolts 5.

[0053] The wheel cutter 3 works continuously in the desert, and the sand has a great friction on the wheel cutter, which reduces the service life of the wheel cutter 3. In order to solve this problem, the wheel cutter 3 is made of wear-resistant steel plate, and 65Mn steel or NM400 can be selected. The thickness of the wheel cutter 3 is 3.5-5.5mm, which has sufficient rigidity and strength, and is light in weight. Because it is thin, it has little resistance when tying grass.

[0054] A sand-scraping wheel 2 is also coaxially fixed on the wheel cutter 3. The main function of the sand-scraping wheel 2 is to ensure the machine's ability to climb sand slopes. The sand-scraping wheel 2 includes a flange 201, on which angle steels 203 are evenly fixed. The sand-scraping wheel 2 and the wheel cutter 3 are coaxially installed to solve the problem of mutual influence between the two due to different walking speeds. If the two are separated and hydraulic transmission is used, the sand-scraping wheel 2 can be turned, but it is difficult to ensure the linear speed between the two. If mechanical transmission is used, such as belt transmission or chain transmission, the sand-scraping wheel 2 cannot be turned and cannot turn. The sand-scraping wheel 2 also plays the role of a counterweight to ensure the depth of the grass penetrating into the ground.

[0055] To make a grass grid, first tie the grass strips vertically, then tie the grass horizontally, and the vertical and horizontal intersect to form a grass grid. It is required that when tying the grass horizontally, the vertical grass strips that have been tied cannot be damaged. The depth of the grass being driven into the ground is 100-150mm. The difference between the radius of the wheel cutter 3 and the outer edge radius of the flange 201 is greater than 180mm, which ensures that during normal operation, the wheel cutter 3 continuously drives the grass into the ground, but the sand-scraping wheel 2 will not touch the ground, and will not damage the already tied grass strips, while avoiding the torque generated between the sand-scraping wheel 3 and the ground when turning. Only when climbing a steep slope, the slope angle is greater than 25 degrees, the slope sand is soft, the wheel cutter sinks, and the sand-scraping wheel 3 touches the ground, which plays the role of sand-scraping. At this time, the steep slope is manually operated. In the desert, the operating area of ​​this model accounts for more than 75% of the total area.

[0056] The length of the angle steel is 450-800mm, which is to increase the contact area with the ground and enhance the ability to climb sand. The specific length is determined according to the situation. During operation, each angle steel 202 is in effect from the beginning of contact with the ground to leaving the ground, but the action and reaction forces on both sides of the angle steel 202 are constantly changing. The angle between the two sides of the angle steel 202 is greater than 100 degrees and less than 120 degrees, which is suitable for its working conditions: at the beginning, one side of the radial arrangement contacts the ground, forming a force to the rear and downward. As it moves forward, the force on this side gradually weakens, while the side tangent to the flange gradually strengthens. At the bottom, it bears the weight of the machine and avoids sinking. The angle steel 202 is an arc plate, which allows the force of the angle steel 202 to transition smoothly, meets the structural requirements of the force, and increases its working strength per unit area. The angle steel 202 is a flat plate, which is for easy production and cost reduction, but the angle between it and the radial direction is quite important. If it is too small, the sand-scraping ability is enhanced, but it is easy to sink. The angle is between 45-60 degrees.

[0057] When the walking tractor 1 is moving, there will be a reaction force, and when going uphill, there will be a counter-torque of the center of gravity moving backward, so it is particularly strenuous to wait for an opportunity to lift the handlebars; when going downhill, there is a phenomenon of landslide, and it is impossible to control the opportunity. A dustpan 4 is set in front of the walking tractor 1. When going uphill, a certain amount of sand is shoveled from the ground into the dustpan 4, which is equivalent to adding a counterweight in front, so there is no need to lift the handlebars strenuously when waiting for an opportunity; when going downhill, pour out some of the sand in the dustpan 4, and the front will be lighter, solving the problem of sliding downhill. Inclined plates 401 are fixed in front of both sides of the dustpan 4. When loading sand, the inclined plates 401 block the dustpan 4 from drilling sand. In this way, the existing resources of the desert are effectively utilized, the problem of unbalanced force is solved, and the counterweight and the device for dynamically adjusting the counterweight are omitted.

[0058] A tail bar 6 is arranged at the rear of the walking tractor. The tail bar 6 comprises a cross bar 606, and the front of the cross bar 606 is connected to the rear of the walking tractor 1 by a first pin 7, so that the tail bar 6 can swing in the horizontal plane. This function avoids the tail bar 6 from generating a counter torque when turning. When walking on the ground, the tail bar 6 can be pushed aside to avoid interference with the vehicle. The rear of the cross bar 606 is connected to the curved rod 601 by a second pin 604, so that the curved rod 601 at the tail can swing in the vertical plane. Above the rear of the cross bar 606, a baffle 607 is also arranged to limit the amplitude of the upward swing of the curved rod 601. When climbing a steep slope, the vehicle can lift the curved rod 601 to assist. Below the rear of the cross bar 606, a third pin 605 is also arranged to limit the amplitude of the downward swing of the curved rod 601. The vehicle can stand on the curved rod 601 to work, which reduces the labor intensity and prevents the front of the vehicle from being loaded onto the ground. A vertical pole 603 is also fixed on the baffle 607, and a tension spring 602 is connected between the vertical pole 603 and the bent rod 601. When the bent rod 601 is not acted upon, the bent rod 601 leaves the ground under the action of the tension spring 602, does not hinder the walk of the rider, and does not damage the formed grass strip.

[0059] The curved rod 601 is a thin and long rod. Since the ground in the desert is soft, the curved rod 601 is in full contact with the sand, and people standing on it will not sink. The curved rod 601 will slide in the desert and will not wear out quickly. The linear movement has a negligible impact on the already formed grass strip. The curved rod can also be replaced by a tail wheel commonly used in agriculture, but the tail wheel cannot swing in the horizontal and vertical planes, the operation is not convenient, the tail wheel has a small contact area with the ground, sinks deeply, and has a large resistance.

Claims

1. A light sand-fixing grass grid machine, comprising a walking tractor (1), characterized in that: The walking tractor (1) has two output shafts (101), each having a wheel hub mounting flange (102); the wheel hub mounting flange (102) and the wheel cutter (3) are mounted via bolts (5); the side of the wheel cutter (3) is coaxially mounted with a flange (201) on a sand scraping wheel (2), and angle steels (202) are evenly fixed on the flange (201); a dustpan (4) is fixed in front of the walking tractor (1); and a tail rod (6) is arranged at the rear of the walking tractor (1); The difference between the radius of the wheel cutter (3) and the outer radius of the flange (201) is greater than 180 mm; The tail rod (6) comprises a cross bar (606), the front end of which is connected to the rear of the walking tractor (1) by a pin shaft 1 (7), and the rear end of which is connected to the bent rod (601) by a pin shaft 2 (604). A baffle (607) is provided above the rear end of the cross bar (606), and a pin shaft 3 (605) is provided below the rear end of the cross bar (606). A vertical rod (603) is fixed on the baffle (607), and a tension spring (602) is connected between the vertical rod (603) and the bent rod (601).

2. The light sand-fixing grass grid machine according to claim 1, characterized in that: One side of the angle steel (202) is tangent to the flange (201).

3. The light sand-fixing grass grid machine according to claim 1 or 2, characterized in that: The included angle between two sides of the angle steel (202) is greater than 100 degrees and less than 120 degrees.

4. The light sand-fixing grass grid machine according to claim 1, 2 or 3, characterized in that: The angle steel (202) has a length of 450-800 mm.

5. The light sand-fixing grass grid machine according to claim 1, characterized in that: Inclined plates (401) are fixed in front of both sides of the dustpan (4).

6. The light sand-fixing grass grid machine according to claim 1, characterized in that: The material of the wheel cutter (3) is a steel plate.

7. The light sand-fixing grass grid machine according to claim 1, characterized in that: The thickness of the wheel cutter (3) is 3.5-5.5 mm.

8. The light sand-fixing grass grid machine according to claim 1 or 4, characterized in that: The angle steel (202) is a flat plate.

9. The light sand-fixing grass grid machine according to claim 1 or 4, characterized in that: The angle steel (202) is an arc plate.

10. The light sand-fixing grass grid machine according to claim 1, characterized in that: The output shaft (101) is an extended shaft.

Images