CN204408859U - A kind of rotatable land leveller - Google Patents

Abstract

A rotatable grader, which relates to a device for land improvement, to solve the complex structure of the existing grader, the cumbersome adjustment of the rotation angle of the blade or the moldboard, poor work efficiency, and the problem of the blade or the moldboard It is inconvenient to adjust the angle of itself, which leads to the fixed force mode of the blade or moldboard, which affects normal use and shortens the service life of the blade or moldboard. It includes the traction frame and the scraper. The traction frame includes the traction beam and Bracket, the upper end of the bracket is equipped with a traction beam; it also includes a scraper beam, a connecting shaft, a shaft sleeve, a screw pair, a connecting rod, a first connecting rod and a second connecting rod; the scraper is installed in the first groove or the second In the groove, the first lead screw of the lead screw pair is rotatably installed on the bracket, one end of the scraper beam is connected to one end of the connecting rod, the nut of the lead screw pair is connected to the other end of the connecting rod, and the other end of the scraper beam is connected to the second end of the connecting rod. One end of a connecting rod is connected, and the first connecting rod is hinged with the second connecting rod. The utility model is used for land consolidation.

Description

A rotatable grader

technical field

The utility model relates to equipment for land consolidation, which belongs to the technical field of land consolidation.

Background technique

Land consolidation is an important means to revitalize stock land, strengthen economical and intensive use of land, replenish cultivated land in a timely manner, and increase land production capacity. Land consolidation includes land consolidation, land reclamation, and land development. The grader is the main tool for shaping and leveling operations in earthworks. It can complete the work of ground leveling, trenching, slope scraping, bulldozing, snow removal, loosening, compaction, cloth, mixing, installation assistance and wasteland reclamation in large areas such as important highway sites and farmland. The agricultural grader is mainly a farmland construction machine used for farmland leveling operations, but the existing grader has a complex structure, inflexible motor performance, and heavy weight. The pin or bolt positioning method is cumbersome to operate, which affects the working efficiency of the motor grader, and the angle adjustment of the scraper itself is complicated, and the force mode of the scraper is fixed, which affects normal use and shortens the service life of the scraper.

Utility model content

The utility model is to solve the complex structure of the existing grader, the cumbersome adjustment of the rotation angle of the blade or the scraper, the poor work efficiency, and the inconvenience of adjusting the angle of the blade or the scraper, which causes the blade or the scraper to be stressed. The mode is fixed, which affects normal use and shortens the service life of the blade or moldboard, so a rotatable motor grader is provided.

The technical scheme adopted by the utility model to solve the above problems is: a rotatable grader of the utility model includes a traction frame and a scraper, the traction frame includes a traction beam and a bracket, and a traction beam is installed on the upper end surface of the bracket; it It also includes a scraper beam, a connecting shaft, a shaft sleeve, a lead screw pair, a connecting rod, a first connecting rod and a second connecting rod; the lower end surface of the scraper beam is processed with a first groove and a second groove;

The scraper is installed in the first groove or the second groove, the cross section of the first groove is rectangular, the first groove is arranged vertically, the cross section of the second groove is rectangular, the second groove is arranged obliquely, and the upper part of the support The end face is equipped with a shaft sleeve arranged axially and vertically, and the middle part of the upper end face of the scraper beam is fixed with a connecting shaft. The connecting shaft is installed in the shaft sleeve and can rotate circumferentially in the shaft sleeve; the first screw of the screw pair Rotate and install on the bracket, one end of the scraper beam is connected to one end of the connecting rod, the nut of the screw pair is connected to the other end of the connecting rod, the other end of the scraper beam is connected to one end of the first connecting rod, and the first connecting rod is connected to the other end of the connecting rod. The second connecting rod is hinged, and the second connecting rod is hinged with the bracket.

The beneficial effects of the utility model are: 1. The utility model adopts the lead screw pair and the hinged structure to realize the adjustment of the scraping direction of the scraper or the scraper, and the rotating lead screw mechanism pushes the scraper or the scraper in the hinged structure of the connecting rod. The adjustment of the direction of the blade or moldboard is realized under rotation, which not only controls the angle and is convenient to operate, but also increases the range of optional rotation angles. When the scraper is perpendicular to the direction of travel, it can level uneven land. When it is at a certain angle, the scraper has the effect of scraping soil to one side, so it can scrape the ridge and flat the ditch. 2. The lower end surface of the scraper beam of the present invention is processed with a first groove and a second groove; the first groove is arranged vertically, and the second groove is arranged obliquely, and the scraper can be arranged in the first groove as required Or fix it in the second groove to adjust the inclination angle of the scraper, and change the fixed force mode of the traditional motor grader scraper, and convert the pulling force exerted by the scraper beam on the scraper into thrust, which not only saves labor, but also improves the overall machine performance. The service life has been increased by 2-3 times. 3. The utility model has the advantages of simple structure, light weight, less steel consumption, flexible maneuverability and convenient operation, which is suitable for popularization and use, and can be used for farmland leveling operations such as ditches, ridges, and furrows. It can also be used for land improvement and utilization of other earthworks.

Description of drawings

Fig. 1 is a schematic diagram of the front view of the utility model, Fig. 2 is a schematic diagram of the top view of Fig. 1, Fig. 3 is a schematic diagram of the structure of the third embodiment, and Fig. 4 is a schematic diagram of the structure of the fourth embodiment.

Detailed ways

Specific Embodiment 1: In conjunction with FIG. 1 and FIG. 2, a rotatable motor grader of this embodiment includes a traction frame 1 and a scraper 2, and the traction frame 1 includes a traction beam 1-1 and a bracket 1-2, and the bracket The upper end surface of 1-2 is equipped with traction beam 1-1; it also includes scraper beam 3, connecting shaft 4, bushing 5, lead screw pair 7, connecting rod 8, first connecting rod 9 and second connecting rod 10; The lower end surface of the scraper beam 3 is processed with a first groove 3-1 and a second groove 3-2;

The scraper 2 is installed in the first groove 3-1 or the second groove 3-2, the cross section of the first groove 3-1 is rectangular, the first groove 3-1 is arranged vertically, the second groove 3- 2 has a rectangular cross-section, the second groove 3-2 is arranged obliquely, the upper end surface of the bracket 1-2 is equipped with an axially vertically arranged shaft sleeve 5, and the middle part of the upper end surface of the scraper beam 3 is fixedly equipped with a connecting shaft 4, The connecting shaft 4 is installed in the shaft sleeve 5 and can rotate circumferentially in the shaft sleeve 5; the first lead screw 7-1 of the screw pair 7 is mounted on the support 1-2 in rotation, and one end of the scraper beam 3 is connected to the connecting rod 8 One end of the screw pair 7 is connected to the nut 7-2 of the screw pair 7 and the other end of the connecting rod 8 is connected, the other end of the scraper beam 3 is connected to one end of the first connecting rod 9, and the first connecting rod 9 is connected to the second connecting rod 10 Hinged, the second connecting rod 10 is hinged with the bracket 1-2.

The hinge structure of the first connecting rod and the second connecting rod in this embodiment can be replaced by the same screw pair, and the reverse movement of the screw nuts of the two sets of screw pairs on both sides of the bracket can realize the adjustment of the direction of the scraper. The support 1-2 can be connected with the lead screw pair 7 and the linkage through the bearing 1-3. In this embodiment, the scraper 2 arranged in the second groove can be connected to the scraper beam 3 through bolts 11 .

Specific Embodiment 2: Referring to FIG. 2 , the scraper beam 3 in this embodiment is a rectangular parallelepiped scraper beam. With such arrangement, the structure is simple, and the use is convenient and reliable. Others are the same as in the first embodiment.

Specific embodiment three: In conjunction with Fig. 3, the second groove 3-2 of this embodiment is arranged obliquely toward the direction of the traction beam 1-1, and the angle between the inclined direction of the second groove 3-2 and the vertical direction β is 10°-20°. Such a setting makes it easy to adjust the inclination angle of the scraper and change the fixed force mode of the traditional motor grader scraper, which is suitable for overall operations with small slopes or small furrows. The second groove is arranged obliquely toward the drawing beam, which also means that the second groove is arranged obliquely toward the lead screw pair. Others are the same as in the first or second embodiment.

Specific Embodiment 4: In conjunction with Fig. 4, the second groove 3-2 of this embodiment is arranged obliquely against the direction of the traction beam 1-1, and the clip between the oblique direction and the vertical direction of the second groove 3-2 The angle Φ is 10°-20°. Such setting makes it easy to adjust the inclination angle of the scraper, change the fixed force mode of the traditional motor grader scraper, and convert the pulling force exerted by the scraper beam on the scraper into thrust. The second groove is arranged obliquely against the direction of the draw beam, which also means that the second groove is arranged obliquely against the direction of the lead screw pair. Others are the same as in the first or second embodiment.

work process

Connect the traction frame 1 to the tractor, and fix the scraper 2 (shovel or scraper plate) in the first groove 3-1 or the second groove 3-2 according to the needs of the actual farmland leveling operation, so as to realize the scraper 2 The adjustment of its own angle changes the different force modes. At the same time, the screw 7-1 of the screw pair 7 moves the connecting rod 8, drives the first connecting rod 9 and the second connecting rod 10 to form a hinge mechanism to move, and realizes scraper 2 Adjust the angle with the direction of the tractor to meet the needs of different land leveling operations.

Claims (4)

1. a rotatable land leveller, it comprises traction frame (1) and scraper (2), traction frame (1) comprises draw beam (1-1) and support (1-2), and the upper surface of support (1-2) is provided with draw beam (1-1); It is characterized in that: it also comprises doctor beam (3), connecting axle (4), axle sleeve (5), lead screw pair (7), connecting rod (8), first connecting rod (9) and second connecting rod (10); The lower surface of doctor beam (3) is processed with the first groove (3-1) and the second groove (3-2);

Scraper (2) is arranged in the first groove (3-1) or the second groove (3-2), the cross section of the first groove (3-1) is rectangle, first groove (3-1) is vertically arranged, the cross section of the second groove (3-2) is rectangle, second groove (3-2) is in tilted layout, the upper surface of support (1-2) is provided with the axially vertical axle sleeve (5) arranged, the middle part of the upper surface of doctor beam (3) is fixed with connecting axle (4), and connecting axle (4) to be arranged in axle sleeve (5) and can to rotate in axle sleeve (5) inner circumferential; First leading screw (7-1) of lead screw pair (7) is rotatably installed on support (1-2), one end of doctor beam (3) is connected with one end of connecting rod (8), the screw (7-2) of lead screw pair (7) is connected with the other end of connecting rod (8), the other end of doctor beam (3) is connected with one end of first connecting rod (9), first connecting rod (9) is hinged with second connecting rod (10), and second connecting rod (10) is hinged with support (1-2).

2. the rotatable land leveller of one according to claim 1, is characterized in that: doctor beam (3) is cuboid doctor beam.

3. the rotatable land leveller of one according to claim 1 and 2, it is characterized in that: the second groove (3-2) is in tilted layout to draw beam (1-1) direction, the angle (β) between the incline direction of the second groove (3-2) and vertical direction is 10 °-20 °.

4. the rotatable land leveller of one according to claim 1 and 2, it is characterized in that: the second groove (3-2) is in tilted layout back to draw beam (1-1) direction, the angle (Φ) between the incline direction of the second groove (3-2) and vertical direction is 10 °-20 °.