Scraping device and land leveler

Abstract

The present invention relates to a mud scraping device. To solve the problem that the existing mud scraping devices on wheels are all passive mud scraping, the present invention constructs a mud scraping device and a land leveler. The mud scraping device is used to be installed on the wheel rim and rotates synchronously with the wheel on the side of the wheel. It includes a cutter head seat for fixedly connecting with the rim, a cutter head installed on the axial side surface of the cutter head seat, and a mud scraping plate fixed on the axial side surface of the cutter head; the cutting edge of the scraping plate protrudes axially away from the cutter head. The mud scraping device of the present invention is installed on the wheels of the land leveler and rotates with the wheels to actively scrape the mud adhering between the rear axle balance box and the tire, avoiding the damage to the tire caused by the friction of the mud adhering to the rear axle balance box on the tire.

Description

Technical Field

[0001] The present invention relates to a mud scraping device, and more particularly to a mud scraping device and a grader. Background Art

[0002] The wheels of a grader are installed on the side of the rear axle balance box. The gap between the side of the tire and the rear axle balance box is small, and the upper surface of the balance box is a flat structure, where mud is likely to accumulate. If not cleaned in time, the accumulated mud will rub against the inner side of the tire, causing damage to the tire.

[0003] The existing mud scraping devices for wheels are all passive mud scraping, that is, the mud scraping plate is fixedly installed and stationary relative to the vehicle frame. When the wheel rotates, the mud scraping plate scrapes off the mud adhering to the tire to prevent too much mud from adhering to the vehicle.

[0004] The existing passive mud scraping devices cannot scrape off the mud on the rear axle balance box of the grader. As the mud on the rear axle balance box increases, the mud adhering to the rear axle balance box will cause wear to the tire, affecting the service life of the tire. Summary of the Invention

[0005] The technical problem to be solved by the present invention is the problem that the existing mud scraping devices on vehicles are all passive mud scraping. The present invention provides a mud scraping device and a grader, in which the mud scraping device rotates with the wheel to achieve active mud scraping, avoiding the adverse effect of mud accumulation on the vehicle frame on the tire.

[0006] The technical solution for the present invention to achieve its purpose is as follows: A mud scraping device is constructed, characterized in that the mud scraping device is used to be installed on the wheel rim, located on the side of the wheel and rotating synchronously with the wheel. It includes a cutter head seat for fixedly connecting with the rim, a cutter head installed on the axial side of the cutter head seat, and a scraping plate fixed on the axial side of the cutter head; the cutting edge of the scraping plate protrudes axially away from the cutter head.

[0007] In the present invention, the mud scraping device is installed beside the wheel and rotates with the wheel to scrape off the mud on the object opposite to the side of the wheel tire, avoiding friction with the tire when the vehicle is moving and damaging the tire.

[0008] In the mud scraping device of the present invention, the cutter head is movably installed on the cutter head seat through a sliding mechanism, and the sliding direction of the cutter head is parallel to the connection line from the radially outermost end of the scraping plate to the rotation center of the mud scraping device. When the radially outermost end of the scraping plate contacts the ground or a stone due to excessive deformation at the grounding point caused by the heavy load of the tire, the cutter head and the scraping plate can slide upward, thus avoiding the deformation of the mud scraping device when it collides with the ground or a stone. The radially outermost end of the scraping plate refers to the position on the scraping plate where the distance from the rotation center of the mud scraping device is the largest.

[0009] In the mud scraping device of the present invention, the scraping plate is one, or two, and the connection line of the radially outermost ends of the two scraping plates passes through the rotation center of the mud scraping device.

[0010] In the mud scraping device of the present invention, the cutter head is in an annular shape and the center of the circle is located at the rotation center of the mud scraping device.

[0011] In the mud scraping device of the present invention, the sliding mechanism includes a plurality of long holes provided on the cutter head, a limiting block fixed on the cutter head seat, and a limiting baffle; the length direction of each long hole is parallel to the connection line from the radially outermost end of the scraping plate to the rotation center of the mud scraping device, the limiting block is located in the long hole, and the limiting baffle is fixed on the limiting block by bolts and the radial dimension of the limiting baffle is greater than the width of the long hole.

[0012] In the mud scraping device of the present invention, a protective cover is fixedly installed at each long hole position on the cutter head, the protective cover is fixedly connected to the cutter head by bolts, and the limiting baffle is located inside the protective cover.

[0013] In the mud scraping device of the present invention, the scraping plate is in a straight plate shape. Further, the included angle between the connection line of the radially outermost end of the scraping plate and the rotation center of the mud scraping device and the length direction of the scraping plate is greater than 8 degrees and less than 35 degrees.

[0014] The present invention provides a grader to achieve its purpose, which is characterized by including the aforementioned mud scraping device, the mud scraping device is arranged between the rear axle balance box and the wheel of the grader, and the cutter head seat is fixedly connected to the rim of the wheel.

[0015] In the grader of the present invention, the radially outermost end of the scraping plate extends to the shoulder position of the wheel tire.

[0016] Compared with the prior art, in the present invention, the mud scraping device is installed on the wheel of the grader and rotates with the wheel, actively scraping the mud adhered between the rear axle balance box and the tire, avoiding the damage of the tire caused by the friction of the mud adhered on the rear axle balance box. Brief Description of the Drawings

[0017] Figure 1 is an exploded view of the mud scraping device and the wheel of the present invention.

[0018] Figure 2 is a schematic structural view of the cutter head seat of the mud scraping device of the present invention.

[0019] Figure 3 is a schematic structural view of the cutter head and the scraping plate of the mud scraping device of the present invention.

[0020] Figure 4 is an assembly schematic view of the mud scraping device and the wheel of the present invention.

[0021] Figure 5 This is a schematic structural diagram of the rear axle balance box of the grader of the present invention.

[0022] Names and serial numbers of components in the figure:

[0023] Cutter head seat 10, limit block 11, cutter head 21, scraper 22, long hole 23, bolt 30, limit baffle 31, protective cover 40, wheel 50, tire 51, rim 52, rear axle balance box 60. Specific embodiments

[0024] The following describes the specific implementation manners in conjunction with the drawings.

[0025] Figure 5 A schematic connection structure diagram of the rear axle balance box of the grader and the wheel in this embodiment is given. Two wheels 50 are installed on each side of the rear axle balance box 60 of the grader. As Figure 4 shown, a mud scraping device is installed beside each wheel 50.

[0026] As Figure 1 shown, the mud scraping device includes a cutter head seat 10, a cutter head 21 installed on the axial side surface of the cutter head seat 10, and a scraper 22 fixed on the axial side surface of the cutter head 21; the cutting edge of the scraper 22 protrudes axially away from the cutter head.

[0027] As Figure 3 shown, two scrapers 22 are welded on the cutter head 21, and the scraper 22 is in a straight plate shape. The connection line between the radially outermost ends of the two scrapers 22 intersects with the rotation center axis of the wheel. The extension line in the length direction of the scraper 22 does not intersect with the rotation axis of the wheel, and the included angle between the connection line between the radially outermost ends of the two scrapers 22 and the length direction of the scraper is between 8 degrees and 35 degrees. When the inclined scraper rotates to scrape off the soil, the soil is not easy to accumulate on the scraper.

[0028] The cutter head 21 is movably installed on the cutter head seat 10 through a sliding mechanism, and the sliding direction of the cutter head 21 is parallel to the connection line from the radially outermost end of the scraper to the rotation center of the mud scraping device.

[0029] The sliding mechanism includes a plurality of long holes 23 provided on the cutter head, a limit block 11 fixed on the cutter head seat 10, and a limit baffle 31; the length direction of each long hole 23 is parallel to the connection line from the radially outermost end of the scraper 22 to the rotation center O point of the wheel, the limit block 11 is located in the long hole 23, and the limit baffle 31 is fixed on the limit block 11 through a bolt 30 and the radial dimension of the limit baffle 31 is greater than the width of the long hole.

[0030] Heavy loads on the tire cause excessive deformation at the contact point with the ground. It is possible for point A, the radially outermost end of the scraper 22, to come into contact with the ground or a stone. At this time, the cutter head 21 and the scraper 22 can slide upward to avoid the mud scraping device colliding with the ground or a stone and being deformed. The radially outermost end of the scraper refers to the position on the scraper where the distance from the rotation center of the mud scraping device is the largest.

[0031] At each long hole position on the cutter head 21, a protective cover 40 is fixedly installed. The protective cover 40 is fixedly connected to the cutter head 21 by bolts, and the limit baffle 31 is located inside the protective cover 40. The protective cover 40 prevents mud from entering the long holes.

[0032] As Figure 2 Figure 4 As shown, the cutter head seat 10 is fixed to the wheel rim 52 of the vehicle by welding or bolts. The cutter head seat 10 is annular, and its center point is located at the rotation center of the wheel.

[0033] As Figure 5 As shown, the wheel 50 is connected to the rear axle balance box 60 of the grader. The mud scraping device on the wheel 50 is located between the wheel 50 and the rear axle balance box 60. The radially outermost end of the scraper extends to the shoulder position of the wheel tire. A more optimal solution is that the radially outermost end of the scraper is located at the outer ring position of the tire shoulder.

[0034] In the present invention, the mud scraping device is installed beside the wheel and rotates together with the wheel 50 to scrape off the mud adhered to the balance box, so that the gap between the side of the wheel tire 51 and the balance box will not be filled with mud, thereby avoiding the mud adhered to the rear axle balance box from rubbing against the wheel tire and damaging the tire.

[0035] In this embodiment, there are two scrapers. In specific implementation, the scraper can also be set to one.

Claims

1. A grader, comprising a mud scraping device, characterized in that, the mud scraping device is arranged between the rear axle balance box and the wheel of the grader, installed on the wheel rim, located on the side of the wheel and rotates synchronously with the wheel. It includes a cutter head seat fixedly connected to the rim, a cutter head installed on the axial side of the cutter head seat, and a scraper fixed on the axial side of the cutter head; the cutting edge of the scraper protrudes axially away from the cutter head; the cutter head is movably installed on the cutter head seat through a sliding mechanism, and the sliding direction of the cutter head is parallel to the connection line from the radially outermost end of the scraper to the rotation center of the mud scraping device; the sliding mechanism includes a plurality of long holes provided on the cutter head, a limiting block and a limiting baffle fixed on the cutter head seat; the length direction of each long hole is parallel to the connection line from the radially outermost end of the scraper to the rotation center of the mud scraping device, the limiting block is located in the long hole, and the limiting baffle is fixed on the limiting block by bolts and the radial dimension of the limiting baffle is greater than the width of the long hole; the radially outermost end of the scraper extends to the shoulder position of the wheel tire.

2. The grader according to claim 1, characterized in that the scraper is one piece, or two pieces and the connection line of the radially outermost ends of the two scrapers passes through the rotation center of the mud scraping device.

3. The grader according to claim 2, characterized in that the cutter head is in a circular ring shape and the center of the circle is located at the rotation center of the mud scraping device.

4. The grader according to claim 1, characterized in that a protective cover is fixedly installed at each position of the long hole on the cutter head, the protective cover is fixedly connected to the cutter head by bolts, and the limiting baffle is located inside the protective cover.

5. The grader according to claim 1, characterized in that the scraper is in a straight plate shape.

6. The grader according to claim 5, characterized in that the included angle between the connection line of the radially outermost end of the scraper and the rotation center of the mud scraping device and the length direction of the scraper is greater than 8 degrees and less than 35 degrees.

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