Geogrid laying device

Abstract

The utility model discloses geogrid laying technical field's geogrid laying device, including the frame with at least one group walking wheel, the movable core shaft of rotatable is equipped with on the frame, the tail of frame rotatably is equipped with the flattening roller, the central axis of core shaft is parallel with the central axis of flattening roller, the movable core shaft is rotatably equipped with the loose roller between the above -mentioned and the above -mentioned flattening roller, the central axis of loose roller is parallel with the central axis of core shaft, the above -mentioned loose roller is passed through transmission assembly and is driven connection with the above -mentioned walking wheel, the ring side of above -mentioned loose roller is equipped with a plurality of loose hanging rod that can go in and out geogrid mesh. Will remove power conversion into the automatic loose power of geogrid, and set up a plurality of loose hanging rod on the loose roller, combine the flattening mechanism of time, realized the mechanized laying of replacement artificial tow, relative to the laying scheme of simple through pressure in the prior art, it can improve the offset and wrinkle that appears in the geogrid laying to a great extent, promotes the efficiency and guarantees the laying quality.

Description

Technical Field

[0001] This utility model relates to the field of geogrid laying technology, and in particular to a geogrid laying device. Background Technology

[0002] Laying geogrids is a crucial step in the construction and maintenance of grass running tracks. It effectively enhances the stability of the track base layer and prevents problems such as collapse and deformation. Currently, it is mostly laid manually or using a geogrid machine.

[0003] Manual laying involves dragging the geogrid along by hand. This method is not only labor-intensive and inefficient, but also makes it difficult to ensure the flatness of the geogrid, easily leading to wrinkles and misalignment. Laying with a laying machine, such as the geogrid laying device disclosed in CN212956058U, includes a laying frame and a first clamping wheel, a second clamping wheel, and a rotating wheel mounted on the frame. When the first or second clamping wheel rotates, it drives the rotating wheel to rotate through the geogrid as a transmission medium. Because the geogrid is inclined and taut between the clamping wheel and the rotating wheel, the rotating wheel can rotate along with the clamping wheel. Although the above laying device produces a flatter geogrid that is less prone to crumbling compared to manual laying, it is still a more efficient method. However, during the laying process, if the laying device vibrates due to road surface depressions and bumps, that is, the pressure roller that drives the rotating wheel vibrates, the tensile force on the laid geogrid roll will be uneven, that is, different areas will be tight or loose, which will cause the geogrid laid on the ground to wrinkle, shift, etc. The vibrating pressure roller will then directly press the wrinkled geogrid into the road surface, thus affecting the flatness of the geogrid and the laying effect. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, the technical problem to be solved by this utility model is: how to improve the wrinkles and unevenness in the existing geogrid laying process.

[0005] The technical solution adopted by this utility model to solve its technical problem is: A geogrid laying device includes a frame with at least one set of wheels, a rotatable mandrel movably mounted on the frame, a flattening roller rotatably mounted at the rear of the frame, the central axis of the mandrel being parallel to the central axis of the flattening roller, a release roller rotatably mounted on the frame between the mandrel and the flattening roller, the central axis of the release roller being parallel to the central axis of the mandrel, the release roller being connected to the wheels via a transmission assembly, and a plurality of release hanging rods that can enter and exit the geogrid mesh openings on the circumferential side of the release roller.

[0006] Furthermore, any of the aforementioned release rods bends in the opposite direction of the rotation of the aforementioned release roller to form an arc-shaped rod.

[0007] Furthermore, the outer end face of the aforementioned loose hanging rod has a rounded corner structure.

[0008] Furthermore, a drive shaft is provided on the frame corresponding to the rotation of the walking wheel. The walking wheel is sleeved on one end of the corresponding drive shaft located on the outside of the frame. The transmission assembly includes a driven pulley sleeved on the end of the release roller and a driving pulley sleeved on the drive shaft. The driving pulley is connected to the driven pulley via a transmission belt.

[0009] Furthermore, the frame is provided with two support seats at intervals, and the support seats are provided with U-shaped grooves. The two ends of the mandrel are respectively placed in the U-shaped grooves, and the inner wall of the U-shaped grooves is embedded with a plurality of ball bearings arranged in a U-shape at intervals.

[0010] Furthermore, connecting seats are provided on both sides of the frame near the tail end. A swing arm is rotatably provided on the lower side of the connecting seat, and a mounting shaft is provided on the upper side of the connecting seat. A suspension spring is connected between the mounting shaft and the swing arm. The two ends of the flattening roller are respectively rotatably provided at the ends of the two swing arms.

[0011] Furthermore, the front end of the aforementioned rack is connected to a mounting bracket for connecting external mobile devices.

[0012] Furthermore, a connecting frame is provided between the aforementioned trailer and the aforementioned frame, and a storage box is provided on the upper side of the connecting frame.

[0013] Furthermore, the aforementioned storage box is formed by a base plate, a set of long plates, and a set of short plates. The set of short plates are respectively provided with through slots, and the width of the through slots is greater than the diameter of the aforementioned spindle.

[0014] Furthermore, the aforementioned long plate includes multiple unit plates connected to the aforementioned base plate and arranged at equal intervals along the long side of the base plate, with the first and last unit plates respectively connected to a set of the aforementioned short plates.

[0015] The beneficial effects of this utility model are: This geogrid laying device has a mandrel and a flattening roller on the frame, and a release roller between the mandrel and the flattening roller. A set of traveling wheels and the release roller are driven by a power unit, which converts the moving power into the automatic release power of the geogrid. Multiple release hanging rods are set on the release roller. Combined with the instant flattening mechanism, it realizes mechanized laying that replaces manual dragging. Compared with the existing laying scheme that is simply achieved by pressure, it can greatly improve the deviation and wrinkles that occur in geogrid laying, improve efficiency and ensure laying quality. Attached Figure Description

[0016] Figure 1This is one of the structural views of the geogrid laying device of this utility model; Figure 2 This is the second structural view of the geogrid laying device of this utility model; Figure 3 This is a side view of the geogrid laying device of this utility model; Figure 4 This is one of the partial structural views of the geogrid laying device of this utility model; Figure 5 This is the second partial structural view of the geogrid laying device of this utility model.

[0017] The markings in the diagram are as follows: 1-Frame, 2-Mandrel, 3-Pressing Roller, 4-Release Roller, 5-Release Hanging Rod, 6-Transmission Component, 601-Driven Pulley, 602-Drive Pulley, 603-Transmission Belt, 7-Transmission Shaft, 8-Support Seat, 9-U-groove, 10-Ball Ball, 11-Connecting Seat, 12-Swing Arm, 13-Suspension Spring, 14-Mounting Shaft, 15-Trailer, 16-Connecting Frame, 17-Storage Box, 18-Base Plate, 19-Long Plate, 20-Short Plate, 21-Through Groove, 22-Walking Wheel, 23-Unit Plate. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] First, it should be stated that "the tail of rack 1" as used in this application refers to... Figure 3 Based on the orientation shown, the right side is the front of frame 1, and the left side is the rear of frame 1.

[0020] like Figures 1-5 As shown, the geogrid laying device of this utility model includes a frame 1 with at least one set of traveling wheels 22. A rotatable spindle 2 is movably mounted on the frame 1. A flattening roller 3 is rotatably mounted at the tail of the frame 1. The central axis of the spindle 2 is parallel to the central axis of the flattening roller 3. A release roller 4 is rotatably mounted on the frame 1 between the spindle 2 and the flattening roller 3. The central axis of the release roller 4 is parallel to the central axis of the spindle 2. The release roller 4 is connected to the traveling wheels 22 through a transmission assembly 6. The release roller 4 is provided with a plurality of release hanging rods 5 on its circumferential side that can enter and exit the geogrid mesh.

[0021] The number of loosening hangers 5 is designed based on the number and position of the mesh openings on the laid geogrid. Specifically, in the axial direction of the loosening roller 4, loosening hangers 5 are arranged at equal intervals, equal to the number of mesh openings in the transverse direction of the laid geogrid, forming loosening hanger groups. The spacing between these groups is consistent with the spacing between adjacent mesh openings in the transverse direction. The loosening hanger groups are arranged at equal intervals around the circumference of the loosening roller 4, with the spacing between adjacent loosening hanger groups being the spacing between adjacent mesh openings in the longitudinal direction of the geogrid. A set of traveling wheels 22 is symmetrically arranged on both sides of the frame 1. The number of traveling wheels 22 can be adjusted in groups according to actual conditions.

[0022] When geogrid needs to be laid (the ground surface can be a grass track or other ground, the following description uses a grass track as an example), first connect the head of the frame 1 to the external mobile equipment (such as a tractor) to provide the device with the power to move. Alternatively, oxen or human power can be used. Then, the mandrel 2 is removed from the device, and the geogrid roll is fitted onto the mandrel 2. The mandrel 2 is then installed onto the frame 1. The free end of the geogrid is pulled out from the roll and passed around the bottom of the release roller 4, with some of the release hooks 5 on the release roller 4 engaging in the mesh of the geogrid (the release roller 4 on the side closest to the ground will enter the mesh of the geogrid in units of release hooks first; generally, 3 to 4 sets of release hooks will enter the geogrid at the same time, the number of sets being affected by the radial value of the release roller 4 and the mesh spacing of the geogrid). Next, the free end of the geogrid is passed around the bottom of the flattening roller 3 and laid on the ground, and the free end of the geogrid is fixed to the ground, completing the preparation work. Then, the external mobile device drives the entire device forward, and the traveling wheels 22 at the bottom of the frame 1 rotate accordingly. The transmission component 6 starts working, driving the release roller 4 to rotate synchronously. As the loosening roller 4 rotates, the loosening hooks 5 on its ring side also rotate. Because some loosening hooks on the loosening roller 4 are inside the mesh of the geogrid, the loosening roller 4 gradually pulls the geogrid off the roll and loosens it backward during the rotation. During this process, the loosening hooks that were originally inside the geogrid mesh will gradually move upward and leave the geogrid mesh, and new loosening hooks will enter the geogrid mesh, alternating continuously to complete the loosening of the geogrid. As the device moves forward, the loosened geogrid falls onto the surface of the grass track. At this time, the flattening roller 3 located at the rear of the frame 1 rolls to the position of the geogrid during the movement of the device and gradually presses the laid geogrid into contact with the ground. During the movement of the device, it rolls the newly laid geogrid to ensure that it is flat and in line with the ground, further preventing the laid geogrid from shifting. In the above embodiment, since the rotation speed of the loosening roller 4 and the moving speed of the traveling wheel 22 are matched with each other through the transmission component 6, it can be ensured that the loosening length of the geogrid is consistent with the forward distance of the device. At the same time, the setting of the loosening hanging rod 5 can make the geogrid more uniformly stressed, avoiding excessive loosening or stretching during the laying process, greatly eliminating the wrinkles of the geogrid, reducing the deviation during the laying process, and then the flattening roller 3 is used to flatten the laid geogrid in time, thereby completing an efficient and flat laying operation.

[0023] Any of the aforementioned release rods 5 bends in the opposite direction to the rotation of the aforementioned release rollers 4 to form an arc-shaped rod. That is, as... Figure 3As shown, when the device is working, the release roller 4 rotates clockwise, and the release hook 5 is an arc-shaped rod with a counterclockwise arc structure. This design is in line with the rotation direction of the release roller 4, which can make it more smoothly inserted into the mesh of the geogrid and guide the geogrid to detach smoothly. This can avoid jamming between the release hook 5 and the geogrid to a certain extent.

[0024] The outer end face of the aforementioned loosening rod 5 has a rounded corner structure. This design can reduce the possibility of the loosening rod 5 scratching the geogrid during the process of moving in and out of the geogrid.

[0025] A drive shaft 7 is rotatably mounted on the frame 1 corresponding to the traveling wheel 22. The traveling wheel 22 is sleeved on the outer end of the drive shaft 7. The transmission assembly 6 includes a driven pulley 601 sleeved on the end of the release roller 4 and a driving pulley 602 sleeved on the drive shaft 7. The driving pulley 602 is connected to the driven pulley 601 via a transmission belt 603. It should be noted that the driven pulley 601 and the driving pulley 602 are located on the same side of the frame 1. The rotation of the traveling wheel 22 drives the drive shaft 7 to rotate, which in turn drives the driving pulley 602 to rotate. Under the action of the transmission belt 603, the driven pulley 601 rotates synchronously, thereby realizing the rotation of the release roller 4. As another embodiment, the rotating assembly can also be composed of a first sprocket, a second sprocket, and a chain. The first sprocket is sleeved on one end of the drive shaft 7, and the second sprocket is sleeved on the release roller 4. The first sprocket and the second sprocket are connected by a chain drive. In the above design, the synchronous belt eliminates elastic slippage by meshing with the pulley tooth grooves through the equidistant transverse teeth on its inner surface, achieving relatively strict transmission ratio control. Compared with the design structure of chains and sprockets, the synchronous belt itself is elastic, can absorb vibration, reduce noise, and has smooth transmission with high stability.

[0026] The frame 1 is provided with two support seats 8 at intervals. Each support seat 8 has a U-shaped groove 9. Both ends of the mandrel 2 are respectively placed within the U-shaped groove 9. Multiple U-shaped balls 10 are embedded in the inner wall of the U-shaped groove 9 at intervals. Preferably, the support seat 8 includes a base on the frame 1 and a U-shaped seat on the base, wherein the base and the U-shaped seat can be connected by welding. The outer surface of the U-shaped seat is smooth, preventing personnel from being scratched when installing the mandrel 2. Alternatively, the balls 10 can be cylindrical rollers. It is worth noting that the axis of any cylindrical roller is parallel to the central axis of the mandrel 2 in the working state. Cylindrical rollers have line contact with the raceway, resulting in a large contact area and the ability to withstand higher radial loads, making them particularly suitable for heavy-duty applications. The design of multiple balls 10 converts the sliding friction between the mandrel 2 and the support seat 8 into rolling friction, reducing the resistance experienced by the mandrel 2 during rotation, thereby reducing the resistance during geogrid release and preventing jamming or pulling deformation.

[0027] The frame 1 has connecting seats 11 on both sides near the tail. A swing arm 12 is rotatably mounted on the lower side of the connecting seat 11, and a mounting shaft 14 is mounted on the upper side of the connecting seat 11. A suspension spring 13 connects the mounting shaft 14 and the swing arm 12. The two ends of the flattening roller 3 are rotatably mounted at the ends of the two swing arms 12. In this design, the suspension spring 13 provides upward tension to the flattening roller 3, allowing for adaptive elastic contact between the flattening roller 3 and the ground covered with geogrid. This means the flattening roller 3 can buffer during movement, reducing vibration and preventing excessive pressure on the material.

[0028] Preferably, the front end of the frame 1 is connected to a trailer 15 for connecting to an external mobile device. One end of the trailer 15 is connected to the frame 1, and the other end has a connection hole for connecting to a mobile device (such as a tractor). The trailer 15 makes it easier to connect the device to an external mobile device such as a tractor, providing traction power and moving the entire device.

[0029] A connecting frame 16 is provided between the aforementioned trailer 15 and the aforementioned frame 1, and a storage box 17 is provided on the upper side of the connecting frame 16. The storage box 17 can be used to hold items and tools, and can also be used to store spare geogrid rolls, facilitating convenient replacement of the rolls on the mandrel 2. Preferably, the aforementioned storage box 17 is formed by a base plate 18, a set of long plates 19, and a set of short plates 20. The set of short plates 20 are respectively provided with through grooves 21, the width of which is greater than the diameter of the mandrel 2. The base plate 18, the set of long plates 19, and the set of short plates 20 are fixedly connected by welding. The through grooves 21 on the set of short plates 20 are adapted to the mandrel 2. The through grooves 21 are designed to facilitate quick insertion of the mandrel 2 into the geogrid roll in the storage box 17, facilitating quick retrieval of the geogrid roll and further improving the convenience of replacing the roll.

[0030] The aforementioned long plate 19 includes multiple unit plates 23 connected to the aforementioned base plate 18 and arranged at equal intervals along the long side of the base plate 18. The first and last unit plates 23 are respectively connected to a set of the aforementioned short plates 20. It is worth noting that the aforementioned "first and last" are not related to the head and tail of the frame 1, but simply refer to the arrangement order of the multiple unit plates 23. The spaced arrangement of the unit plates 23 to form the long plate 19 can reduce the material used in the storage box 17 and reduce costs.

[0031] In summary, this application proposes a geogrid laying device. The device uses a power component to link a set of traveling wheels 22 and a loosening roller 4, converting the moving power into the automatic loosening power of the geogrid. Multiple loosening hooks 5 are set on the loosening roller 4, and combined with an instant flattening mechanism, it realizes mechanized laying that replaces manual dragging. Compared with the existing laying scheme that relies solely on pressure, it can greatly improve the offset and wrinkles that occur during geogrid laying, improve efficiency, and ensure laying quality.

Claims

1. A geogrid laying device, comprising a frame (1) having at least one set of wheels (22), a rotatable mandrel (2) movably mounted on the frame (1), and a flattening roller (3) rotatably mounted at the tail of the frame (1), wherein the central axis of the mandrel (2) is parallel to the central axis of the flattening roller (3), characterized in that: The frame (1) is rotatably provided with a release roller (4) between the mandrel (2) and the flattening roller (3). The central axis of the release roller (4) is parallel to the central axis of the mandrel (2). The release roller (4) is connected to the walking wheel (22) through a transmission assembly (6). The release roller (4) is provided with multiple release hanging rods (5) on its circumferential side that can enter and exit the geogrid mesh.

2. The geogrid laying device as described in claim 1, characterized in that: Any of the release rods (5) bends in the opposite direction of the rotation of the release roller (4) to form an arc-shaped rod.

3. The geogrid laying device as described in claim 2, characterized in that: The outer end face of the loosening rod (5) has a rounded corner structure.

4. The geogrid laying device as described in claim 1, characterized in that: The frame (1) is provided with a drive shaft (7) corresponding to the rotatable walking wheel (22). The walking wheel (22) is sleeved on the end of the corresponding drive shaft (7) located outside the frame (1). The transmission assembly (6) includes a driven pulley (601) sleeved on the end of the release roller (4) and a driving pulley (602) sleeved on the drive shaft (7). The driving pulley (602) is connected to the driven pulley (601) through a transmission belt (603).

5. The geogrid laying device as described in claim 1, characterized in that: The frame (1) is provided with two support seats (8) spaced apart. The support seats (8) are provided with U-shaped grooves (9). The two ends of the spindle (2) are respectively placed in the U-shaped grooves (9). The inner wall of the U-shaped grooves (9) is embedded with a plurality of ball bearings (10) arranged in a U-shape.

6. The geogrid laying device as described in claim 1, characterized in that: The frame (1) is provided with connecting seats (11) on both sides near the tail. A swing arm (12) is rotatably provided on the lower side of the connecting seat (11). An installation shaft (14) is provided on the upper side of the connecting seat (11). A suspension spring (13) is connected between the installation shaft (14) and the swing arm (12). The two ends of the flattening roller (3) are respectively rotatably provided at the ends of the two swing arms (12).

7. The geogrid laying device as described in claim 1, characterized in that: The front end of the rack (1) is connected to a tow rack (15) for connecting external mobile devices.

8. The geogrid laying device as described in claim 7, characterized in that: A connecting frame (16) is provided between the trailer (15) and the frame (1), and a storage box (17) is provided on the upper side of the connecting frame (16).

9. The geogrid laying device as described in claim 8, characterized in that: The storage box (17) is formed by a base plate (18), a set of long plates (19) and a set of short plates (20). The set of short plates (20) are respectively provided with through slots (21), and the width of the through slots (21) is greater than the diameter of the spindle (2).

10. The geogrid laying device as described in claim 9, characterized in that: The long plate (19) includes multiple unit plates (23) connected to the base plate (18) and arranged at equal intervals along the long side of the base plate (18). The first and last unit plates (23) are respectively connected to a group of short plates (20).

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