CN113389114A

CN113389114A - Land leveler equipment for secondary turning and stirring of roadbed filling

Info

Publication number: CN113389114A
Application number: CN202110717335.5A
Authority: CN
Inventors: 李强; 李晓鹏; 冯红鹰; 林军; 朱斌强
Original assignee: First Engineering Co Ltd of China Railway 17th Bureau Group Co Ltd
Current assignee: First Engineering Co Ltd of China Railway 17th Bureau Group Co Ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2021-09-14
Anticipated expiration: 2041-06-28
Also published as: CN113389114B

Abstract

The invention relates to the field of roadbed filling construction equipment, in particular to land leveler equipment for roadbed filling secondary turning and stirring, which comprises an engine body, a cab and ploughshares, wherein each ploughshare comprises a primary ploughshare arranged on the engine body below the cab and a secondary ploughshare arranged at the tail part of the engine body; the primary plough share is installed on the machine body through a primary hydraulic arm, the secondary plough share is installed on the machine body through a secondary hydraulic arm, a lower pull rod for controlling the extension of the primary hydraulic arm is arranged in the cab, an upper pull rod for controlling the contraction of the primary hydraulic arm and the secondary hydraulic arm is further arranged in the cab, and the secondary hydraulic arm and the primary hydraulic arm are in linkage control. The secondary deep ploughing for the roadbed arrangement of the equipment enables the device to have high moving speed, large traction force and good adaptability to rough road surfaces, and the use of the secondary ploughshare can further deeply plough the roadbed and has better land arrangement effect.

Description

Land leveler equipment for secondary turning and stirring of roadbed filling

Technical Field

The invention relates to the field of roadbed filling construction equipment, in particular to land leveler equipment for secondary turning and stirring of roadbed filling.

Background

With the rapid development of the modern construction business of China, the tasks carried by transportation are increasingly heavy, and more modern airports, railways and roads are required to be built, especially high-grade roads are required to be built. Airports and high-grade highways have high requirements for the evenness of the road surface, and for large-area levelling work with high accuracy, it is generally necessary to use a grader with high productivity and levelling accuracy. Thus, the grader has a unique function that is not replaceable by other machines in earth working operations.

Aiming at the roadbed engineering taking high liquid limit soil as filler in the Hainan expressway, because the natural water content of the high liquid limit soil is high, under the humid and hot climate condition of Hainan, 2-4 days of continuous no-rainfall time is generally needed, the high liquid limit soil filler is turned over and aired for many times by utilizing construction equipment such as a furrow plough and the like, the water content can be reduced to the optimal water content, the construction period is greatly prolonged, the construction cost is increased, and the construction can not be carried out even in rainy seasons.

According to the tedding test data, the moisture content of the high liquid limit soil is only reduced to 33.2% (the optimal moisture content is 25%) from 39.8% after being tedded for 3 days, the moisture content is far greater than the optimal moisture content, the tedding frequency of the high liquid limit soil for more than 4 days in the whole year in Hainan province is only 22.2%, and the tedding construction process and the tedding efficiency of the high liquid limit soil are required to be solved urgently at the fastest speed from the natural moisture content to the optimal moisture content under the special climatic condition of Hainan.

Disclosure of Invention

The invention provides land leveler equipment for secondary turning and stirring for roadbed filling, which aims to reduce the natural water content of high liquid limit soil to the optimal water content at the highest speed.

The invention is realized by the following technical scheme: a land leveler device for secondary turning and mixing of roadbed filling comprises a machine body, a cab and ploughshares, wherein each ploughshare comprises a primary ploughshare arranged on the machine body below the cab and a secondary ploughshare arranged at the tail part of the machine body;

the primary plough share is installed on the machine body through a primary hydraulic arm, the secondary plough share is installed on the machine body through a secondary hydraulic arm, a lower pull rod for controlling the extension of the primary hydraulic arm is arranged in the cab, an upper pull rod for controlling the contraction of the primary hydraulic arm and the secondary hydraulic arm is further arranged in the cab, and the secondary hydraulic arm and the primary hydraulic arm are in linkage control.

As a further improvement of the technical scheme of the invention, a button capable of controlling the soil turning depth of the secondary plough share is arranged in the cab.

Compared with the prior art, the invention has the beneficial effects that: the secondary deep ploughing for the roadbed arrangement of the equipment enables the device to have high moving speed, large traction force and good adaptability to rough road surfaces, and the use of the secondary ploughshare can further deeply plough the roadbed and has better land arrangement effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a front view of a grader apparatus for secondary reclamation of roadbed filling according to the present invention.

Fig. 2 is a right side view of fig. 1.

Fig. 3 is a top view of fig. 1.

Fig. 4 is a schematic structural view of the land leveler equipment for the second turn-up of the roadbed filling.

In the figure: 1-cab, 2-upper pull rod, 3-lower pull rod, 4-primary hydraulic arm, 5-primary plough share, 6-secondary hydraulic arm, 7-secondary plough share and 8-machine body.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

As shown in fig. 1 to 4, the present invention provides a specific embodiment of a land leveler device for secondary turning and stirring of roadbed filling, comprising a machine body 8, a cab 1 and ploughshares, wherein the ploughshares comprise a primary ploughshare 5 arranged on the machine body 8 below the cab 1 and a secondary ploughshare 7 arranged at the tail of the machine body 8;

the special hydraulic plough share is characterized in that the primary plough share 5 is arranged on a machine body 8 through a primary hydraulic arm 4, the secondary plough share 7 is arranged on the machine body 8 through a secondary hydraulic arm 6, a lower pull rod 3 for controlling the extension of the primary hydraulic arm 4 is arranged in the cab 1, an upper pull rod 2 for controlling the contraction of the primary hydraulic arm 4 and the secondary hydraulic arm 6 is also arranged in the cab 1, and the secondary hydraulic arm 6 and the primary hydraulic arm 4 are in linkage control.

The inventive motor grader installation has three operating modes, namely a working mode, a transport mode and a turning mode. When the motor grader runs in different states, distances between the ploughshares of the motor grader and the ground are different, and stress of all parts of an auxiliary mechanism of the motor grader is different. The method comprises the following specific steps:

(1) turning state, transport state

When the land leveler equipment is in a turning state or a transportation state, the hydraulic arm system of the land leveler integrally lifts all the ploughshares to be separated from the ground through the upper pull rod 2.

(2) Working state

When the land leveler equipment is in a working state, the lower pull rod 3 in the cab 1 transmits traction force to the plough share cutter shaft system, so that the movement of the plough share cutter is divided into a horizontal movement and a combined movement of rotating around the cutter shaft.

When the device works, the lower pull rod 2 is operated, the primary hydraulic arm 4 drives the primary plough share 5 to rotate and enter a soil turning working state, the soil turning depth of the primary plough share is 20 centimeters, a primary hydraulic system oil meter in the cab 1 feeds back a forward resistance value in the forward running process, if the resistance exceeds a certain numerical value, the secondary hydraulic arm 6 is automatically started, the soil turning depth of the secondary plough share 6 can be independently determined by a soil turning depth button in the cab 1, and the secondary plough share 7 further enters the working state. The upper pull rod 3, the primary plough share 5 and the secondary plough share 7 are operated to ascend simultaneously, and the soil turning is stopped.

In the invention, the ascending operation of the primary plough share 5 and the secondary plough share 7 is operated by the upper pull rod 3, if the secondary plough share 7 is not started in the soil turning operation, the upper pull rod 3 can independently lift the primary plough share 5, and if the primary plough share 5 and the secondary plough share 7 work simultaneously, the upper pull rod 3 can simultaneously lift the primary plough share 5 and the secondary plough share 7.

In the invention, a button capable of controlling the soil turning depth of the secondary plough share 7 is arranged in the cab 1.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A land leveler device for secondary turning and stirring of roadbed filling comprises a machine body (8), a cab (1) and a plough share, and is characterized in that the plough share comprises a primary plough share (5) arranged on the machine body (8) below the cab (1) and a secondary plough share (7) arranged at the tail part of the machine body (8);

the special hydraulic plough is characterized in that the primary plough share (5) is installed on the machine body (8) through a primary hydraulic arm (4), the secondary plough share (7) is installed on the machine body (8) through a secondary hydraulic arm (6), a lower pull rod (3) for controlling the extension of the primary hydraulic arm (4) is arranged in the cab (1), an upper pull rod (2) for controlling the contraction of the primary hydraulic arm (4) and the secondary hydraulic arm (6) is further arranged in the cab (1), and the secondary hydraulic arm (6) and the primary hydraulic arm (4) are in linkage control.

2. The land leveler equipment for the second turning of roadbed filling according to claim 1, characterized in that the cab (1) is provided with a button capable of controlling the turning depth of the secondary ploughshare (7).