Land scraper and loosening device thereof
A technology of grader and soil loosening teeth, which is applied in the direction of earth mover/shovel, mechanically driven excavator/dredger, construction, etc., which can solve the problems of complex structure, large volume, limited activity space, etc. Small size, convenient power transmission and simple structure
Active Publication Date: 2013-07-17
SANY HEAVY IND CO LTD (CN)
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- Claims
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Problems solved by technology
[0003] In the prior art, the oil cylinder is connected with the rack (with scarifier teeth) by means of a rotating shaft assembly with a keyway, rocker arm, connecting rod, left and right link arms, etc. When the scarifier device is in the initial position, if the traction When the frame moves downward around the front end, it is easy to interfere with the upper surface of the tooth frame on the loosening device, and when the loosening device is loosening the soil, it is located between the ground and the front frame, so it must bypass the traction frame, and also It is easy to interfere with the front axle and the front wheels installed on the front axle, and the movable space is limited. In order to avoid the interference as much as possible, there must be a corresponding device to coordinate the movement of the front axle, front wheels and traction frame and other components at the same time. In addition, the Since the soil loosening device is installed on the front frame, the structure is complex and the volume is large
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[0018] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be pointed out that the description and sequence of specific structures in this section are only descriptions of specific embodiments, and should not be considered as limiting the protection scope of the present invention.
[0019] Please refer to figure 1 , figure 1 It is a structural schematic diagram of a soil loosening device for a grader provided by the first embodiment of the present invention.
[0020] As shown in the figure, the loosening device includes a left / right swing arm 5, a rack 15, a loosening tooth 11, an oil cylinder 7, etc., and its connection relationship and working process are as follows:
[0021] The front end of the left / right swing arm 5 is hinged with the traction frame 10 through the r...
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A grader and a ripper thereof, comprising an oil cylinder (7), a pair of cantilevers (5), tooth racks (15) fixed on one end of each of the pair of cantilevers (5), and ripper teeth (11) fixed on the tooth racks (15). The other ends of the pair of booms (5) are hinged to a tractor frame (10) via a first hinge shaft (3). One end of the oil cylinder (7) is hinged to the tractor frame (10) via a second hinge shaft (9), while the other end of the oil cylinder (7) is hinged to the one pair of cantilevers (5) or the tooth racks (15) via a third hinge shaft (6). The pair of cantilevers (5) is driven by the oil cylinder (7) to swing around the first hinge shaft (3). By arranging the ripper on the tractor frame (10), movement interference is prevented to the greatest extent possible between the ripper and other parts such as the tractor frame (10), a front axle (2), and wheels. Also, because the ripper is arranged under the tractor frame (10), power transmission is facilitated, and only the oil cylinder (7) is required for hinging to the pair of cantilevers (5) or the tooth rack (15). Also comprised is the grader provided with the ripper.
Description
technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a soil loosening device for a grader. The invention also relates to a motor grader with a scarifying device. Background technique [0002] A grader is a kind of earth-rock machinery mainly equipped with a soil scraper and equipped with various other auxiliary operating devices, which can perform operations such as cutting, scraping and leveling the soil. In existing motor graders, a soil loosening device can usually be installed between the front axle of the motor grader and the blade according to the needs of customers, so that the hard ground is loosened before the blade shovels the soil. Installed on the front rack. [0003] In the prior art, the oil cylinder is connected with the rack (with scarifier teeth) by means of a rotating shaft assembly with a keyway, rocker arm, connecting rod, left and right link arms, etc. When the scarifier device is in the initial...
Claims
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IPC IPC(8): E02F5/32E02F3/76
CPCE02F5/32E02F3/7604E02F3/7636
Inventor 张德兴袁国文王文峰
Owner SANY HEAVY IND CO LTD (CN)