Land leveler for road engineering

Abstract

The land leveler for the road engineering comprises a vehicle body, a front-arranged main beam is fixedly installed on the front side of the vehicle body, a shovel frame is installed at the front end of the bottom of the front-arranged main beam, and a scraper is installed at the rear end of the bottom of the front-arranged main beam. A shovel blade is installed at the front end of the shovel frame and comprises a bottom plate and side plates oppositely arranged on the two sides of the bottom plate, a stone screening area is arranged at the lowest position of the bottom plate and penetrates through the bottom plate in the thickness direction, a stone screening frame is installed in the stone screening area, and the stone screening frame is fixedly connected with the bottom plate. A vertically-protruding blocking part is arranged on the front side of the stone screening structure and used for preventing gravel accumulated in the stone screening area from rolling down forwards. The land leveler for road engineering solves the problem that a scraper of the land leveler is prone to colliding with stones and is damaged.

Description

Technical Field

[0001] This utility model relates to the field of grader technology, specifically a grader for road engineering. Background Technology

[0002] A grader is an earthmoving machine with a scraper located between the front and rear axles, capable of lifting, tilting, rotating, and extending. It is flexible in movement, easy to operate, and provides high precision in leveling the ground. It is used for constructing roadbeds and pavements, building slopes, excavating ditches, mixing aggregates, snow removal, material pushing, and maintaining dirt and gravel roads.

[0003] During road construction, after a stone delivery machine dumps crushed stone onto the construction surface, the ground itself may contain stones, and the crushed stone pile may also contain stones mixed in. If a grader is used directly to level it, the scraper blade is very likely to hit these stones. This impact will damage the scraper blade, and with increased use, the scraper's leveling effect will gradually deteriorate. This not only affects construction efficiency but may also lead to substandard road smoothness, increasing the difficulty and cost of subsequent repair work. Summary of the Invention

[0004] The problem this utility model aims to solve is to provide a road grader that addresses the issue of the grader's blades being easily damaged by hitting stones.

[0005] The technical solution adopted by this utility model to solve the above problems is as follows: a grader for road engineering, including a vehicle body, a front main beam fixedly installed on the front side of the vehicle body, a shovel frame installed at the bottom front end of the front main beam, and a scraper installed at the rear end; a shovel blade is installed at the front end of the shovel frame, the shovel blade includes a base plate and side plates arranged opposite to each other on both sides of the base plate, a stone screening area is provided at the lowest point of the base plate, the stone screening area runs through the thickness direction of the base plate, and a stone screening frame is installed in the stone screening area, the stone screening frame is fixedly connected to the base plate, and a vertically protruding barrier is provided on the front side of the stone screening frame to prevent the sand and gravel accumulated in the stone screening area from rolling forward.

[0006] Compared to existing technologies, this road grader solves the problem using a blade structure on the front-mounted main beam at the bottom of the front of the vehicle body. The blade includes a base plate and two side plates. The lowest point of the base plate has a screening zone that runs through its thickness. A screening frame is fixed in the screening zone to screen stones and rocks. At the same time, a vertically protruding barrier is provided on the front side of the screening frame to prevent the sand and gravel accumulated in the screening zone from rolling forward. This keeps stones and other objects in the screening zone and prevents them from rolling forward with the material to the scraper, thus protecting the scraper from stone impact.

[0007] Furthermore, the stone screening frame includes several horizontally spaced crossbars and several vertically spaced vertical bars, which are interlaced to form a grid. During road construction, this grid structure allows smaller-diameter gravel to continue moving backward through the gaps in the grid, while larger stones are intercepted by the grid or their movement is restricted, preventing them from passing smoothly through the screening frame, thus achieving the separation of stones and gravel.

[0008] Furthermore, the lateral spacing between two adjacent lower crossbars is smaller than the lateral spacing between two adjacent upper crossbars. The different crossbar spacing is designed for more even distribution of sand and gravel during descent. This is because the lower part of the bucket accumulates more stone, while the upper part accumulates less. If the spacing were uniform, the lower part of the bucket would fall faster, while the upper part would fall slower.

[0009] Furthermore, the front side of the barrier is provided with several shovel teeth arranged at transverse intervals. The upper end face of the shovel teeth is an inclined surface, and its rear side is continuous with the barrier. The height of the shovel teeth decreases continuously forward to guide the sand and gravel to move towards the barrier.

[0010] Furthermore, the shovel teeth are made of high manganese steel, which has excellent wear resistance. Even after prolonged friction, the shovel teeth can maintain good shape and performance during the process of the shovel blade frequently contacting ground stones, sand and gravel.

[0011] Furthermore, the front side of the barrier is continuous with the rear side of the upper end face of the shovel tooth, and it is an inclined surface with a gradually increasing height towards the rear. The front side of the rear side of the barrier is continuous with the rear end of the front side, and it is an inclined surface with a gradually decreasing height towards the rear. Moreover, the end point of its rear end is continuous with the upper end face of the vertical rod.

[0012] Furthermore, the rear side of the barrier is continuous with the front side through an arc transition surface. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present invention.

[0014] Figure 2 This is a side view of the shovel blade of this utility model.

[0015] Illustration: 1. Vehicle body; 2. Front main beam; 3. Shovel frame; 4. Scraper; 5. Shovel blade; 5.1. Base plate; 5.2. Side plate; 5.3. Stone screening area; 5.4. Stone screening frame; 5.4.1. Horizontal bar; 5.4.2. Vertical bar; 5.5. Barrier section; 5.5.1. Shovel teeth; 5.5.2. Arc transition surface. Detailed Implementation

[0016] Before describing any embodiment of this invention in detail, it should be understood that the invention is not limited in its application to the details of the construction and arrangement of the components set forth in the following description or illustrated in the following figures. The invention is capable of other embodiments and can be practiced or carried out in various ways. Furthermore, it should be understood that the wording and terminology used herein are for descriptive purposes and should not be considered limiting. The use of “comprising” or “having” and variations thereof herein is intended to cover the items set forth below and their equivalents, as well as any additional items. Unless otherwise specified or limited, the terms “installation,” “connection,” “support,” and “linkage,” and variations thereof are used broadly and cover both direct and indirect installation, connection, support, and linking. Moreover, “connection” and “linkage” are not limited to physical or mechanical connections or links.

[0017] Furthermore, firstly, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as a limitation on this utility model. Secondly, the term "a" should be understood as "at least one" or "one or more," that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be construed as a limitation on the quantity.

[0018] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

[0019] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0020] Please see Figure 1 , Figure 2A road grader includes a vehicle body 1. A front main beam 2 is fixedly mounted on the front side of the vehicle body 1. A shovel frame 3 is mounted on the front end of the bottom of the front main beam 2, and a scraper 4 is mounted on the rear end. The scraper 5 at the front end of the shovel frame 3 includes a base plate 5.1 and two side plates 5.2 arranged opposite to each other on both sides. The lowest point of the base plate 5.1 has a screening area 5.3 that runs through its thickness direction. A screening frame 5.4 fixedly connected to the base plate 5.1 is installed in the screening area 5.3. The screening frame 5.4 is a grid structure formed by several horizontally spaced crossbars 5.4.1 and several longitudinally spaced vertical bars 5.4.2. A vertically protruding barrier 5.5 is provided on the front side of the screening frame 5.4 to prevent the sand and gravel accumulated in the screening area 5.3 from rolling forward. The lateral distance between two adjacent lower crossbars 5.4.1 is smaller than the lateral distance between two adjacent upper crossbars 5.4.1.

[0021] The front side of the barrier section 5.5 is provided with several shovel teeth 5.5.1 arranged at transverse intervals. The shovel teeth 5.5.1 are made of high manganese steel, and their upper end face is an inclined surface. The rear side is continuous with the barrier section 5.5, and the height decreases continuously forward, thereby guiding the sand and gravel to move towards the barrier section 5.5. The front side of the barrier section 5.5 is an inclined surface with a gradually increasing height backward. Its front end is continuous with the rear side of the upper end face of the shovel teeth 5.5.1. The front side of the rear side of the barrier section 5.5 is continuous with the rear end of the front side. The rear side is an inclined surface with a gradually decreasing height backward, and the end point of its rear end is continuous with the upper end face of the vertical rod 5.4.2. At the same time, the rear side of the barrier section 5.5 is continuous with the front side through the arc transition surface 5.5.2.

[0022] The above description only illustrates the preferred embodiment of this utility model and should not be construed as limiting the scope of the claims. This utility model is not limited to the above embodiments, and variations in its specific structure are permitted. All changes made within the scope of the independent claims of this utility model are also within the scope of protection of this utility model.

Claims

1. A grader for road construction, characterized in that: The vehicle includes a vehicle body (1), a front main beam (2) is fixedly installed on the front side of the vehicle body (1), a shovel frame (3) is installed at the bottom front end of the front main beam (2), and a scraper (4) is installed at the rear end; a shovel blade (5) is installed at the front end of the shovel frame (3), the shovel blade (5) includes a base plate (5.1) and side plates (5.2) arranged opposite to each other on both sides of the base plate (5.1), a stone screening area (5.3) is provided at the lowest point of the base plate (5.1), the stone screening area (5.3) penetrates along the thickness direction of the base plate (5.1), and a stone screening frame (5.4) is installed in the stone screening area (5.3), the stone screening frame (5.4) is fixedly connected to the base plate (5.1), and a vertically protruding barrier (5.5) is provided on the front side of the stone screening frame (5.4) to prevent the sand and gravel accumulated in the stone screening area (5.3) from rolling forward.

2. A grader for road construction according to claim 1, characterized in that: The stone sieve frame (5.4) includes several horizontally spaced crossbars (5.4.1) and several vertically spaced vertical bars (5.4.2), which are interlaced to form a grid.

3. A grader for road construction according to claim 2, characterized in that: The lateral spacing between two adjacent crossbars (5.4.1) at the bottom is smaller than the lateral spacing between two adjacent crossbars (5.4.1) at the top.

4. A grader for road construction according to claim 1, characterized in that: The front side of the barrier (5.5) is provided with a number of shovel teeth (5.5.1) arranged at transverse intervals. The upper end face of the shovel teeth (5.5.1) is an inclined surface, and its rear side is continuous with the barrier (5.5). The height of the shovel teeth decreases continuously in the forward direction to guide the sand and gravel to move towards the barrier (5.5).

5. A grader for road construction according to claim 4, characterized in that: The material of the shovel teeth (5.5.1) is high manganese steel.

6. A grader for road construction according to claim 4, characterized in that: The front side of the barrier (5.5) is continuous with the rear side of the upper end face of the shovel tooth (5.5.1), and it is an inclined surface with a gradually increasing height towards the rear. The front side of the rear side of the barrier (5.5) is continuous with the rear end of the front side, and it is an inclined surface with a gradually decreasing height towards the rear. The end point of its rear end is continuous with the upper end face of the vertical rod (5.4.2).

7. A grader for road construction according to claim 5, characterized in that: The rear side of the barrier (5.5) is continuous with the front side through an arc transition surface (5.5.2).

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