Land leveler for roadbed and pavement construction

Abstract

The utility model provides a land leveler for roadbed and pavement construction, which relates to the technical field of roadbed and pavement construction and comprises a rack, the rack comprises a mounting plate, a mounting block is fixed on the mounting plate, and a mounting hole is formed in the mounting block. When the road surface leveling device is used for leveling a road surface, soil shoveled by the leveling hopper can gradually enter a soil inlet groove formed between the partition plate and the opening in the front face of the mounting shell along the leveling hopper and finally falls below the partition plate, and along with the movement of the device, low-lying areas can be filled in time through the soil below the partition plate; meanwhile, leveling is conducted through a scraper, compaction is conducted through a pressure roller, after soil below the partition plate and used for filling the low-lying area is fully accumulated, redundant soil can be moved to the position above the partition plate, then the soil is discharged through a soil discharging opening under driving of an auger, accumulation of the soil on the shovel face is avoided as much as possible, and it is ensured that the soil flows smoothly.

Description

Technical Field

[0001] The utility model relates to a motor grader, in particular to a motor grader for roadbed and road surface construction, belonging to the technical field of roadbed and road surface construction. Background Art

[0002] In road construction, the roadbed and pavement are key components to ensure road quality and service life. During construction, motor graders are widely used in pavement leveling operations, effectively completing a wide range of earthwork and pavement paving work.

[0003] In Chinese patent publication CN221956809U, a grader for road construction is disclosed. The insertion portion of the scraping blade is inserted into the insertion slot in the connecting frame through the connecting slot. The fixing block is located in the insertion opening to improve the stability of the connecting frame and the insertion portion. The insertion portion in the connecting frame is limited by a limiting component to connect the scraping blade to the connecting frame. When the scraping blade needs to be removed, the insertion portion of the scraping blade is removed from the insertion slot and the connecting slot, and the scraping blade is separated from the connecting frame, making it convenient to disassemble and replace the scraping blade.

[0004] In actual application, it is found that during the operation of the grader in the above patent, the higher soil is leveled by the scraping shovel. After the higher soil is removed by the scraping shovel, it will gradually move along the length direction of the scraping shovel. For the lower soil, since the scraping shovel has a certain inclination angle, the soil on the scraping shovel is difficult to fill it in time, and subsequent secondary processing is required.

[0005] In addition, if the soil is only discharged by a scraping blade, the fluidity of the soil depends on the angle of the scraping blade. If the soil cannot be discharged smoothly, it may cause soil accumulation on the scraping surface, thereby affecting the entire scraping process. Therefore, a grader for roadbed and pavement construction is proposed. Utility Model Content

[0006] The utility model provides a grader for roadbed and pavement construction, which can timely fill the soil in low-lying areas and simultaneously process the shoveled soil in time, thereby avoiding soil accumulation on the shovel surface as much as possible and ensuring smooth soil flow.

[0007] The utility model is realized through the following technical solutions: A grader for roadbed and pavement construction comprises a frame, the frame comprises a mounting plate, a mounting block is fixed to the mounting plate, a mounting hole is opened on the mounting block, a lifting mechanism is provided on the mounting plate, the lifting mechanism comprises a hydraulic rod fixed to the mounting plate, the output end of the hydraulic rod extends to the bottom of the mounting plate, the output end of the hydraulic rod is fixed to a fixing plate, the bottom surface of the fixing plate is fixed to the mounting shell, the pressure roller is rotatably connected to the fixing plate through a connecting plate, a sliding rod is fixed to the top surface of the fixing plate, the sliding rod passes through the mounting plate and extends to the top of the mounting plate, and the sliding rod is in sliding contact with the mounting plate.

[0008] The lifting mechanism is provided with a scraping assembly, which includes a mounting shell with an opening on the front and bottom. A scraping bucket is fixed on the mounting shell, and a support plate is fixed on the side of the scraping bucket close to the mounting shell. A limiting shell is fixed on the mounting shell, and the support plate is in sliding contact with the limiting shell.

[0009] The leveling assembly and the lifting mechanism are provided with a discharging and leveling mechanism, which includes a pressure roller, and the pressure roller is fixed with a driving wheel through a rotating rod. The discharging and leveling mechanism also includes a rotating shaft rotatably connected to the mounting shell, and a driven wheel is fixed on the rotating shaft, and the driven wheel is located on the outside of the mounting shell. The driving wheel and the driven wheel are connected by a chain transmission, and an auger is fixed on the rotating shaft. A soil discharge port is opened at one end of the mounting shell.

[0010] The discharging and leveling mechanism also includes a partition fixed to the mounting shell, and the partition is located below the auger, and a soil inlet trough is formed between the partition and the front opening of the mounting shell. A scraper is fixed on the mounting shell, and the height of the bottom of the scraper is consistent with the height of the bottom of the scraping bucket. The scraper is fixed to the mounting shell by bolts.

[0011] The utility model provides a grader for roadbed and pavement construction, which has the following beneficial effects:

[0012] 1. When the grader for roadbed and pavement construction is leveling the road surface, the soil shoveled by the scraping bucket will gradually enter the space between the partition and the front opening of the installation shell along the scraping bucket to form a soil inlet trough, and finally fall under the partition. As the device moves, the soil under the partition can fill the low-lying area in time. At the same time, it is leveled by the scraper and compacted by the pressure roller. After the soil under the partition is full and used to fill the low-lying area, the excess soil will move to the top of the partition, and then, driven by the auger, the soil will be discharged through the soil discharge port, so as to avoid soil accumulation on the shovel surface as much as possible and ensure smooth soil flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the utility model from a front perspective;

[0015] Figure 3 This is a cross-sectional view of the internal structure of the installation shell of the present utility model;

[0016] Figure 4 For the utility model Figure 1 A magnified schematic diagram of the structure in the middle.

[0017] Description of Reference Numerals

[0018] 1. Frame; 101. Mounting plate; 102. Mounting block;

[0019] 2. Scraping assembly; 201. Installation shell; 202. Scraping bucket; 2021. Support plate; 2022. Limiting shell;

[0020] 3. Discharge and leveling mechanism; 301. Pressure roller; 302. Driving wheel; 303. Rotating shaft; 304. Driven wheel; 305. Auger; 306. Discharge port; 307. Scraper; 308. Partition plate;

[0021] 4. Lifting mechanism; 401. Hydraulic rod; 402. Fixed plate; 403. Sliding rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0023] See also Figures 1 to 4 An embodiment of the present invention provides a grader for roadbed and pavement construction, including a frame 1. The frame 1 includes a mounting plate 101, a mounting block 102 is fixed on the mounting plate 101, and a mounting hole is opened on the mounting block 102. The device can be installed on a mobile carrier through the mounting plate 101 and the mounting block 102.

[0024] Please refer to Figure 1 and Figure 2A lifting mechanism 4 is provided on the mounting plate 101. The lifting mechanism 4 includes a hydraulic rod 401 fixed on the mounting plate 101. The output end of the hydraulic rod 401 extends to the bottom of the mounting plate 101. A fixed plate 402 is fixed to the output end of the hydraulic rod 401. Starting the hydraulic rod 401 can drive the fixed plate 402 to move up and down. The bottom surface of the fixed plate 402 is fixed to the mounting shell 201. The pressure roller 301 is rotatably connected to the fixed plate 402 through the connecting plate. A sliding rod 403 is fixed to the top surface of the fixed plate 402. The sliding rod 403 passes through the mounting plate 101 and extends to the top of the mounting plate 101. The sliding rod 403 is in sliding contact with the mounting plate 101. The provision of the sliding rod 403 can guide and support the fixed plate 402.

[0025] Please refer to Figure 1 、 Figure 3 and Figure 4 The lifting mechanism 4 is provided with a shoveling assembly 2, which includes a mounting shell 201, and the front and bottom of the mounting shell 201 are opened. A scraping bucket 202 is fixed on the mounting shell 201, and the scraping bucket 202 can be moved to remove higher soil. A support plate 2021 is fixed to the side of the scraping bucket 202 close to the mounting shell 201, and a limiting shell 2022 is fixed on the mounting shell 201. The support plate 2021 is in sliding contact with the limiting shell 2022, and the scraping bucket 202 is fixed to the mounting shell 201 by bolts. By providing the support plate 2021 and the limiting shell 2022, not only can the scraping bucket 202 be supported, but the scraping bucket 202 can also be disassembled to facilitate subsequent maintenance or replacement.

[0026] Please refer to Figure 2 and Figure 3 , a discharging and leveling mechanism 3 is provided on the leveling component 2 and the lifting mechanism 4. The discharging and leveling mechanism 3 includes a pressure roller 301. When the device moves, the pressure roller 301 will rotate. The rotating pressure roller 301 can compact the leveled soil. The pressure roller 301 is fixed with a driving wheel 302 through a rotating rod. The driving wheel 302 will rotate under the drive of the pressure roller 301. The discharging and leveling mechanism 3 also includes a rotating shaft 303 rotatably connected to the mounting shell 201, and a rotating shaft 303 is fixed on the rotating shaft The driven wheel 304 is located on the outside of the mounting shell 201. The driving wheel 302 and the driven wheel 304 are connected by a chain transmission. The rotating driving wheel 302 will drive the driven wheel 304 to rotate through the chain. An auger 305 is fixed on the rotating shaft 303. The rotating driven wheel 304 will drive the rotating shaft 303 and the auger 305 to rotate. A soil discharge port 306 is opened at one end of the mounting shell 201. The rotating auger 305 can discharge the soil on the partition 308 through the soil discharge port 306.

[0027] The discharging and leveling mechanism 3 also includes a partition 308 fixed to the mounting shell 201, and the partition 308 is located below the auger 305. A soil inlet trough is formed between the partition 308 and the front opening of the mounting shell 201. A scraper 307 is fixed on the mounting shell 201. The height of the bottom of the scraper 307 is consistent with the height of the bottom of the scraping bucket 202. The scraper 307 is fixed to the mounting shell 201 by bolts. After the bolts are removed, the scraper 307 can be maintained or replaced.

[0028] Working principle: When in use, first install the device on the mobile carrier through the mounting block 102 and the mounting plate 101, and then adjust the height of the scraping bucket 202, the scraper 307, and the pressure roller 301 by starting the slide bar 403. After the adjustment is completed, the device is driven to move by the mobile carrier, and the moving scraping bucket 202 can shovel higher soil. The shoveled soil will gradually enter the space between the partition 308 and the front opening of the mounting shell 201 along the scraping bucket 202 to form a soil entry trough, and finally fall under the partition 308. As the device moves, the soil under the partition 308 can fill the low-lying area in time, and at the same time, the filled area is leveled by the scraper 307 and compacted by the pressure roller 301. After the soil under the partition 308 is full, the excess soil will move to the top of the partition 308, and then, driven by the auger 305, the soil will be discharged through the discharge port 306, so as to avoid soil accumulation on the shovel surface as much as possible and ensure smooth soil flow.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A motor grader for roadbed and pavement construction, comprising a frame (1), the frame (1) comprising a mounting plate (101), characterized in that: A lifting mechanism (4) is provided on the mounting plate (101), a leveling assembly (2) is provided on the lifting mechanism (4), and a material discharging and leveling mechanism (3) is provided on the leveling assembly (2) and the lifting mechanism (4); The scraping assembly (2) comprises a mounting shell (201), the front and bottom of the mounting shell (201) are open, and a scraping bucket (202) is fixed on the mounting shell (201); The discharging and leveling mechanism (3) comprises a pressure roller (301), the pressure roller (301) being fixed with a driving wheel (302) via a rotating rod, the discharging and leveling mechanism (3) further comprising a rotating shaft (303) rotatably connected to the mounting shell (201), a driven wheel (304) being fixed on the rotating shaft (303), and the driven wheel (304) being located outside the mounting shell (201), the driving wheel (302) and the driven wheel (304) being connected via a chain transmission, an auger (305) being fixed on the rotating shaft (303), and a soil discharge port (306) being provided at one end of the mounting shell (201); The discharging and leveling mechanism (3) further comprises a partition (308) fixed to the mounting shell (201), and the partition (308) is located below the auger (305), a soil feeding trough is formed between the partition (308) and the front opening of the mounting shell (201), and a scraper (307) is fixed on the mounting shell (201).

2. A motor grader for roadbed and pavement construction according to claim 1, characterized in that: The height of the bottom of the scraper (307) is consistent with the height of the bottom of the scraping bucket (202), and the scraper (307) is fixed to the mounting shell (201) by bolts.

3. A motor grader for roadbed and pavement construction according to claim 1, characterized in that: The lifting mechanism (4) comprises a hydraulic rod (401) fixed on the mounting plate (101), the output end of the hydraulic rod (401) extending below the mounting plate (101), a fixing plate (402) fixed to the output end of the hydraulic rod (401), the bottom surface of the fixing plate (402) being fixed to the mounting shell (201), and the pressure roller (301) being rotatably connected to the fixing plate (402) via a connecting plate.

4. A motor grader for roadbed and pavement construction according to claim 3, characterized in that: A sliding rod (403) is fixed on the top surface of the fixing plate (402), and the sliding rod (403) passes through the mounting plate (101) and extends to the top of the mounting plate (101), and the sliding rod (403) is in sliding contact with the mounting plate (101).

5. The motor grader for roadbed and pavement construction according to claim 1, characterized in that: A mounting block (102) is fixed on the mounting plate (101), and a mounting hole is provided on the mounting block (102).

6. A motor grader for roadbed and pavement construction according to claim 1, characterized in that: A support plate (2021) is fixed on one side of the scraping bucket (202) close to the mounting shell (201); a limiting shell (2022) is fixed on the mounting shell (201); and the support plate (2021) is in sliding contact with the limiting shell (2022).

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