Leveling device for paving

Abstract

The utility model relates to the technical field of leveling equipment, in particular to a leveling device for paving. Excessive scattered soil which is shoveled can be cleared and transported in time, and the feeding resistance of the land leveling shovel is reduced. The two first driving cylinders are installed on the installation beam frame, the lifting frame is installed at the output ends of the two first driving cylinders, the land leveling shovel is installed on the lifting frame, the soil guiding mechanism is installed in the land leveling shovel, the installation beam frame is perpendicular to the land leveling shovel, and the soil guiding mechanism is used for guiding out soil in the front of the land leveling shovel. The soil guide mechanism comprises a rotating shaft rotationally mounted in the land leveling shovel, a spiral conveying blade mounted on the rotating shaft and a driving mechanism for providing power for rotation of the rotating shaft; two groups of spiral conveying blades are arranged; the driving mechanism comprises a supporting frame, a first chain wheel fixedly connected with the rotating shaft, a connecting shaft rotationally installed on the supporting frame, a second chain wheel fixedly installed on the connecting shaft, a chain arranged on the first chain wheel and the second chain wheel in a sleeving mode and a driving wheel fixedly installed on the connecting shaft.

Description

Technical Field

[0001] This utility model relates to the technical field of leveling equipment, and in particular to a leveling device for paving roads. Background Technology

[0002] As is well known, roadbed leveling is required during road construction, and graders are commonly used equipment for road surface leveling.

[0003] For example, utility model patent application CN213062147U discloses a leveling device for a grader, which includes a leveling shovel. The leveling shovel comprises a first shovel body, a second shovel body, and a third shovel body. One end of the first shovel body is hinged to one end of the second shovel body, and the other end of the second shovel body is hinged to the third shovel body. A mounting rod is fixedly installed on the second shovel body away from the forward direction of the leveling shovel, and a control component for controlling the rotation of the first and third shovel bodies is provided on the mounting rod. When using the leveling device to widen and level narrow roads, the first and third shovel bodies guide excess soil from the road surface, thereby directing the excess soil to both sides of the road surface, reducing the need for workers to manually transport the soil, and ultimately reducing the workload of workers.

[0004] However, the above-mentioned device still has the following defects: Although the device can guide excess soil to both sides of the road, the smoothness of soil discharge is not good. Some soil will still accumulate at the leveling shovel, especially in front of the first shovel, which will increase the feeding resistance of the leveling shovel. If the accumulated soil is not dealt with in time, some soil will also roll over the leveling shovel and fall onto the leveled road surface, requiring secondary cleaning of the soil on the leveled road surface, which has certain limitations in use. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a paving leveling device that can promptly remove excess loose soil and reduce the feeding resistance of the leveling shovel.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a paving leveling device, comprising a mounting beam, two first drive cylinders mounted on the mounting beam, a lifting frame mounted on the output ends of the two first drive cylinders, a leveling shovel mounted on the lifting frame, and a soil guiding mechanism mounted inside the leveling shovel. The mounting beam is arranged perpendicularly to the leveling shovel. The soil guiding mechanism is used to remove soil from the front of the leveling shovel. The soil guiding mechanism includes a rotating shaft rotatably mounted inside the leveling shovel, a spiral conveying blade mounted on the rotating shaft, and a drive mechanism that provides power for the rotation of the rotating shaft. Furthermore, the mounting beam is used to connect the leveling device to an external grader. The outer wall of the spiral conveying blade is tangent to the shovel wall of the leveling shovel. The drive mechanism can be an electric motor, a hydraulic motor, etc.

[0007] Preferably, the spiral conveyor blades are in two sets, and the two sets of spiral conveyor blades are arranged in a mirror image with the vertical plane of the rotating shaft as the plane of symmetry.

[0008] Preferably, the drive mechanism includes a support frame, a first sprocket fixedly connected to the rotating shaft, a connecting shaft rotatably mounted on the support frame, a second sprocket fixedly mounted on the connecting shaft, a chain sleeved on the first and second sprockets, and a drive wheel fixedly mounted on the connecting shaft; further, the support frame is mounted on a leveling shovel.

[0009] Preferably, it also includes an elastic jacking component, wherein the leveling shovel is elastically connected to the support frame through the elastic jacking component, the elastic jacking component includes a telescopic rod and a spring sleeved on the telescopic rod, one end of the telescopic rod is hinged to the leveling shovel, and the other end of the telescopic rod is hinged to the support frame; furthermore, the spring is sleeved on the extended end of the telescopic rod, one end of the spring abuts against the fixed end of the telescopic rod, and the other end of the spring abuts against the hinge point between the extended end of the telescopic rod and the support frame.

[0010] Preferably, there are two sets of drive mechanisms and elastic jacking components, which are symmetrically arranged on both sides of the leveling shovel.

[0011] Preferably, it also includes a mounting base installed on the lifting frame, the slidable shovel is slidably mounted on the mounting base, and a second drive cylinder that provides power for the slidable shovel to slide is fixedly mounted on the lifting frame; further, the mounting base is provided with a slide rail, the slidable shovel is slidably mounted on the slide rail, the second drive cylinder is arranged parallel to the slidable shovel, one end of the second drive cylinder is hinged to the lifting frame, and the other end of the second drive cylinder is hinged to the slidable shovel.

[0012] Preferably, it also includes a third drive cylinder, the mounting base is hinged to the lifting frame, one end of the third drive cylinder is hinged to the lifting frame, and the other end of the third drive cylinder is hinged to the leveling shovel.

[0013] Preferably, there is a gap of at least 5 cm between the bottom of the spiral conveyor blade and the bottom of the flat shovel.

[0014] Compared with the prior art, the present invention provides a road paving leveling device with the following beneficial effects: the road paving leveling device uses a leveling shovel to level the road surface, and the removed loose soil gathers in front of the leveling shovel. The drive mechanism drives the rotating shaft to rotate, and under the action of the spiral conveying blade, the loose soil is transported to one side of the leveling shovel, reducing the excessive accumulation of loose soil in front of the leveling shovel. The excess loose soil can be cleared in time, reducing the feeding resistance of the leveling shovel. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the front planar structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the rear planar structure of this utility model;

[0018] Figure 4 This is the utility model Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0019] Figure 5 This is the utility model Figure 1 A magnified schematic diagram of the structure at point B in the middle;

[0020] In the attached diagram, the following components are marked: 1. Mounting beam; 2. First drive cylinder; 3. Lifting frame; 4. Leveling shovel; 5. Rotary shaft; 6. Screw conveyor blade; 7. Support frame; 8. First sprocket; 9. Connecting shaft; 10. Second sprocket; 11. Chain; 12. Drive wheel; 13. Telescopic rod; 14. Spring; 15. Mounting base; 16. Second drive cylinder; 17. Third drive cylinder. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0022] As described in the background art, a grader's leveling device can guide excess loose soil to both sides of the road surface, but the smoothness of the soil removal is not good. Some loose soil will still accumulate at the grader blade, especially in front of the first blade, which will increase the feeding resistance of the grader blade. If the accumulated loose soil is not dealt with in time, some loose soil will also roll over the grader blade and fall onto the leveled road surface, requiring secondary cleaning of the loose soil on the leveled road surface, which has certain limitations in use.

[0023] To solve this technical problem, this utility model provides a paving leveling device that is applied to ground leveling.

[0024] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] Example 1

[0027] Please refer to Figure 1-4A paving and leveling device specifically includes: a mounting beam 1, two first drive cylinders 2 mounted on the mounting beam 1, a lifting frame 3 mounted on the output end of the two first drive cylinders 2, a leveling shovel 4 mounted on the lifting frame 3, and a soil guiding mechanism installed inside the leveling shovel 4. The mounting beam 1 and the leveling shovel 4 are arranged perpendicularly. The soil guiding mechanism is used to remove soil from the front of the leveling shovel 4. The soil guiding mechanism includes a rotating shaft 5 rotatably mounted inside the leveling shovel 4, a spiral conveying blade 6 mounted on the rotating shaft 5, and a drive mechanism that provides power for the rotation of the rotating shaft 5. Furthermore, the mounting beam 1 is used to connect the leveling device to an external grader. The outer wall of the spiral conveying blade 6 is tangent to the shovel wall of the leveling shovel 4. The drive mechanism can be an electric motor, a hydraulic motor, etc.

[0028] For details, please refer to Figure 3 It also includes a mounting base 15 installed on the lifting frame 3, a leveling shovel 4 slidably mounted on the mounting base 15, and a second drive cylinder 16 fixedly mounted on the lifting frame 3 to provide power for the sliding of the leveling shovel 4; furthermore, the mounting base 15 is provided with a slide rail, the leveling shovel 4 is slidably mounted on the slide rail, the second drive cylinder 16 is arranged parallel to the leveling shovel 4, one end of the second drive cylinder 16 is hinged to the lifting frame 3, and the other end of the second drive cylinder 16 is hinged to the leveling shovel 4.

[0029] For details, please refer to Figure 4 It also includes a third drive cylinder 17, with the mounting base 15 hinged to the lifting frame 3. One end of the third drive cylinder 17 is hinged to the lifting frame 3, and the other end of the third drive cylinder 17 is hinged to the grader 4. More specifically, the first drive cylinder 2, the second drive cylinder 16, and the third drive cylinder 17 are all hydraulic cylinders, which are powered by the hydraulic system on the external grader.

[0030] For details, please participate. Figure 2 There is a gap of at least 5cm between the bottom of the spiral conveyor blade 6 and the bottom of the flat shovel 4.

[0031] The paving leveling device provided in this embodiment can adaptively adjust the height of the lifting frame 3 by activating the first drive cylinder 2, thereby adjusting the shoveling depth of the leveling shovel 4 on the ground; by activating the second drive cylinder 16, the leveling shovel 4 can be slid along the slide rail on the mounting base 15, allowing for lateral adjustment of the position of the leveling shovel 4 to level different lateral positions of the road surface; by activating the third drive cylinder 17, the output end of the third drive cylinder 17 can be extended or shortened to adjust the tilt angle of the leveling shovel 4, thereby adaptively adjusting the angle between the leveling shovel 4 and the road surface to meet the needs of multiple working conditions; a certain gap is left between the bottom of the spiral conveyor blade 6 and the bottom of the leveling shovel 4 to ensure that some loose soil remains in front of the leveling shovel 4, so that the loose soil can fill the potholes on the road surface.

[0032] Example 2

[0033] The paving and leveling device provided in Example 1 has been further optimized. For details, please refer to [link / reference]. Figure 2 The spiral conveyor blades 6 are in two sets, and the two sets of spiral conveyor blades 6 are mirror images of each other with the vertical plane of the rotating shaft 5 as the plane of symmetry.

[0034] For details, please refer to Figure 5 The drive mechanism includes a support frame 7, a first sprocket 8 fixedly connected to the rotating shaft 5, a connecting shaft 9 rotatably mounted on the support frame 7, a second sprocket 10 fixedly mounted on the connecting shaft 9, a chain 11 sleeved on the first sprocket 8 and the second sprocket 10, and a drive wheel 12 fixedly mounted on the connecting shaft 9; furthermore, the support frame 7 is mounted on the leveling shovel 4.

[0035] For details, please refer to Figure 5 It also includes an elastic jacking component. The leveling shovel 4 is elastically connected to the support frame 7 through the elastic jacking component. The elastic jacking component includes a telescopic rod 13 and a spring 14 sleeved on the telescopic rod 13. One end of the telescopic rod 13 is hinged to the leveling shovel 4, and the other end of the telescopic rod 13 is hinged to the support frame 7. Furthermore, the spring 14 is sleeved on the extended end of the telescopic rod 13. One end of the spring 14 abuts against the fixed end of the telescopic rod 13, and the other end of the spring 14 abuts against the hinge point between the extended end of the telescopic rod 13 and the support frame 7. In the naturally extended state of the spring 14, the bottom of the drive wheel 12 is lower than the bottom of the leveling shovel 4.

[0036] For details, please refer to Figure 2 or Figure 3 Both the drive mechanism and the elastic jacking component are in two sets, and the two sets of drive mechanisms and elastic jacking components are symmetrically arranged on both sides of the leveling shovel 4.

[0037] The paving leveling device provided in this embodiment uses two sets of spiral conveyor blades 6 to simultaneously transport loose soil from the middle of the leveling shovel 4 to both sides, improving the efficiency of soil transport and ensuring timely removal of loose soil from the front of the leveling shovel 4. During road leveling operations, the drive wheel 12 is kept in elastic contact with the road surface by the telescopic rod 13 and spring 14, ensuring that the drive wheel 12 is always in a rolling state when the leveling shovel 4 moves. During the rotation of the drive wheel 12, the second sprocket 10 is driven to rotate, and after being transmitted through the chain 11, the first sprocket 8 drives the rotating shaft 5 to rotate. This enables the spiral conveyor blades 6 to be driven without the need for energy-consuming drive equipment such as motors, making it more energy-efficient. At the same time, the spiral conveyor blades 6 and the leveling shovel 4 can work synchronously and in coordination without the need for a complex external control system. When the leveling shovel 4 moves, the spiral conveyor blades 6 rotate synchronously, and when the leveling shovel 4 stops, the spiral conveyor blades 6 stop synchronously.

[0038] The process of using the paving leveling device provided by this utility model is as follows: The mounting beam 1 is installed on the external grader. The extension of the output ends of the first drive cylinder 2, the second drive cylinder 16 and the third drive cylinder 17 is adjusted so that the grader shovel 4 is in a horizontal state and the bottom of the grader 4 is in contact with the ground. The external grader drives the grader shovel 4 to move forward along the road to be treated. The grader shovel 4 performs the road leveling treatment, and the removed loose soil gathers in front of the grader shovel 4. The drive wheels 12 on the two drive mechanisms rotate, and after being driven by the second sprocket 10, the chain 11 and the first sprocket 8, the rotating shaft 5 drives the spiral conveyor blade 6 to rotate. The loose soil is transported to both sides of the grader shovel 4 to achieve the leveling treatment of the road surface.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A road paving grading device characterized by comprising: The device includes a mounting beam (1), two first drive cylinders (2) mounted on the mounting beam (1), a lifting frame (3) mounted on the output end of the two first drive cylinders (2), a leveling shovel (4) mounted on the lifting frame (3), and a soil guiding mechanism installed in the leveling shovel (4). The mounting beam (1) is arranged perpendicular to the leveling shovel (4). The soil guiding mechanism is used to remove soil from the front of the leveling shovel (4). The soil guiding mechanism includes a rotating shaft (5) rotatably mounted in the leveling shovel (4), a spiral conveying blade (6) mounted on the rotating shaft (5), and a drive mechanism that provides power for the rotation of the rotating shaft (5).

2. The road paving screed of claim 1, wherein, The spiral conveyor blades (6) are in two sets, and the two sets of spiral conveyor blades (6) are mirror images of each other with the vertical plane of the rotating shaft (5) as the plane of symmetry.

3. The road paving screed of claim 2, wherein, The drive mechanism includes a support frame (7), a first sprocket (8) fixedly connected to the rotating shaft (5), a connecting shaft (9) rotatably mounted on the support frame (7), a second sprocket (10) fixedly mounted on the connecting shaft (9), a chain (11) sleeved on the first sprocket (8) and the second sprocket (10), and a drive wheel (12) fixedly mounted on the connecting shaft (9).

4. The paving leveling device according to claim 3, characterized in that, It also includes an elastic jacking component. The leveling shovel (4) is elastically connected to the support frame (7) through the elastic jacking component. The elastic jacking component includes a telescopic rod (13) and a spring (14) sleeved on the telescopic rod (13). One end of the telescopic rod (13) is hinged to the leveling shovel (4), and the other end of the telescopic rod (13) is hinged to the support frame (7).

5. The road paving screed of claim 4, wherein, The drive mechanism and the elastic jacking component are both in two sets, and the two sets of drive mechanisms and elastic jacking components are symmetrically arranged on both sides of the leveling shovel (4).

6. The road paving screed of claim 1, wherein, It also includes a mounting base (15) installed on the lifting frame (3), the leveling shovel (4) is slidably mounted on the mounting base (15), and a second drive cylinder (16) is fixedly installed on the lifting frame (3) to provide power for the leveling shovel (4) to slide.

7. The paving leveling device according to claim 6, characterized in that, It also includes a third drive cylinder (17), the mounting base (15) is hinged to the lifting frame (3), one end of the third drive cylinder (17) is hinged to the lifting frame (3), and the other end of the third drive cylinder (17) is hinged to the leveling shovel (4).

8. The paving leveling device according to claim 1, characterized in that, There is a gap of at least 5cm between the bottom of the spiral conveyor blade (6) and the bottom of the flat shovel (4).

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