CN216586750U

CN216586750U - Efficient scarifier for excavator

Info

Publication number: CN216586750U
Application number: CN202122394459.2U
Authority: CN
Inventors: 王晓晓; 孙健; 解冰; 袁珂生; 杨丽娟; 祁祥; 张强; 徐宏波; 刘元勋
Original assignee: Xuzhou University of Technology
Current assignee: Xuzhou University of Technology
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-05-24
Anticipated expiration: 2031-09-30

Abstract

The utility model discloses a high-efficiency scarifier for an excavator, which comprises a hinged seat part and scarification tooth parts; the hinge seat part comprises a hinge lug plate and a bottom plate; the scarification tooth part comprises a scarification tooth main body which is vertically arranged integrally, the lower part of the scarification tooth main body is bent backwards to form a canine-shaped structure, the top end of the scarification tooth main body is fixedly connected with the bottom plane of the bottom plate, the top end of the bottom of the scarification tooth main body is sleeved with a replaceable bucket tooth, at least one cutting tooth which is connected with the scarification tooth main body in a positioning mode through the cutting tooth seat is convexly arranged on the arc-shaped front end face of the scarification tooth main body, and the included angle between the axial lead of the cutting tooth and the arc-shaped face of the cutting tooth main body corresponding to the positioning and connecting position of the arc-shaped front end face of the scarification tooth main body is an acute angle. This high-efficient agitator for excavator can realize that tipping bucket operation has better effect and the higher efficiency of loosening the soil each time under the certain circumstances of the excavation depth of loosening the soil.

Description

Efficient scarifier for excavator

Technical Field

The utility model relates to a scarifier, in particular to an efficient scarifier for an excavator, which can be mounted on the excavator and belongs to the technical field of excavator machines.

Background

The excavator ripper is an excavator tool, is generally used for splitting or crushing cracked rock, frozen soil or asphalt pavement before the excavator excavates the rock, frozen soil or asphalt pavement so as to facilitate the excavator to excavate and load with a bucket, and is suitable for crushing or splitting hard soil, secondary hard stone and weathered stone.

The excavator ripper generally comprises a hinged seat used for being hinged with a movable arm and a bucket rod of the excavator and ripping teeth which are fixedly and flexibly arranged below the hinged seat and are in a dog-tooth-shaped structure, the existing excavator ripper mainly comprises single ripping teeth and multiple ripping teeth, the single-tooth ripper can adapt to various working faces with different hardness, such as clay, salt mine, frozen soil, rock stratum and the like, not only can ripped broken stones but also can penetrate into different working faces, and the adaptability is high, but the working efficiency is relatively low; the multi-tooth ripper comprises a plurality of ripping teeth arranged side by side at intervals, and ripping efficiency is higher than that of a single-tooth ripper.

The replaceable bucket teeth are usually sleeved at the tips of the bottoms of the ripping teeth, although the distance between the tips of the bucket teeth and the hinged axis of the excavator movable arm of the hinged seat is usually a fixed value with different excavating depth dimensions, the ripper overturning process is a composite process of downward pressing and overturning loads, so that in the ripper of the excavator, driven by a bucket rod, rotating around the hinged axis of the excavator movable arm of the hinged seat, the track formed by the tips of the bucket teeth is an irregular arc track, that is, in the case that the ripping depth of each tipping bucket operation is certain, the ripping of each tipping bucket operation is realized by the tips of the bucket teeth, so that the ripping efficiency is limited, and the ripping needs to be repeatedly loosened in the same direction for non-homogeneous rock, frozen soil or asphalt pavement, not only affects the working efficiency, but also increases the labor intensity and mechanical loss of operators.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides the efficient scarifier for the excavator, which can realize that each tipping bucket operation has better scarification effect and higher scarification efficiency under the condition of certain scarification and excavation depth.

In order to achieve the above object, the high efficiency ripper for excavators includes a hinge seat portion and a ripping tooth portion;

the hinged seat part comprises hinged lug plates and a bottom plate, the hinged lug plates are provided with movable arm hinged mounting holes and bucket rod hinged mounting holes which are arranged along the left-right direction in the axial direction, and the bottoms of the hinged lug plates which are symmetrically arranged into two pieces in the left-right direction are fixedly connected with the top plane of the bottom plate;

the scarification tooth part comprises a scarification tooth body which is vertically arranged integrally and is of a canine-shaped structure with the lower part bent backwards, the top end of the scarification tooth body is fixedly connected with the bottom plate bottom plane, the top end of the bottom of the scarification tooth body is sleeved with a replaceable bucket tooth, the front arc-shaped end face of the scarification tooth body is at least convexly provided with a cutting tooth which is connected with the scarification tooth body in a positioning mode through a cutting tooth seat, and the included angle between the axial lead of the cutting tooth and the arc-shaped face of the cutting tooth body corresponding to the front arc-shaped end face positioning connection position of the scarification tooth body is an acute angle.

As a further improvement scheme of the utility model, the included angle between the axial lead of the cutting tooth and the cambered surface of the positioning and mounting position of the cutting tooth seat corresponding to the cambered front end surface of the scarification tooth main body ranges from 40 degrees to 50 degrees.

As a further improvement scheme of the utility model, a plurality of cutting teeth are uniformly distributed along the radian trend of the arc-shaped front end surface of the scarification tooth main body.

As a further improvement scheme of the utility model, the ripping tooth main bodies are uniformly distributed on the left and right of the bottom plate and are arranged in parallel, and the ripping tooth main bodies arranged in parallel are fixedly connected through reinforcing ribs.

As a further improvement scheme of the utility model, at least the arc-shaped rear end surface of the scarification tooth main body is provided with a protective tooth sleeve.

As a further improvement scheme of the utility model, the pick holder is provided with a pick mounting hole, and the pick is connected with the pick mounting hole of the pick holder through threads or a positioning pin.

Compared with the prior art, when the efficient scarifier for the excavator is installed on the excavator through the movable arm hinge installation hole and the bucket rod hinge installation hole for use, in the process of backward overturning around the excavator movable arm hinge axis of the hinge lug plate under the driving of the bucket rod, under the condition of certain loosening and excavating depth, the tip of the bucket tooth extends into the ground under the action of downward pressing and applying load to loosen the soil first, larger hard rocks in the stratum have the tendency of backward overturning and moving under the shearing force action of the backward overturning bucket tooth to realize primary loosening of the soil, the scarifier body continuously overturns backward, so that the cutting teeth on the arc front end surface of the scarifier body can loosen the soil secondarily on the excavation depth track surface formed after loosening the soil of the bucket tooth and apply overturning and shearing force secondarily to larger hard rocks in the stratum, and further drives the larger hard rocks in the stratum to secondarily have the tendency of backward overturning and moving, Further loosening larger hard rocks in the stratum, thereby improving the soil loosening efficiency of each tipping operation.

Drawings

FIG. 1 is a schematic three-dimensional view of the left rear perspective of the present invention;

FIG. 2 is a schematic three-dimensional view of the front left view of the present invention;

fig. 3 is a schematic diagram of the left side view of the present invention.

In the figure: 1. the scarification tooth cutting machine comprises a hinge lug plate, 2 a base plate, 3 a scarification tooth main body, 4 a cutting tooth, 5 a cutting tooth seat, 6 a protective tooth sleeve, 7 a bucket tooth.

Detailed Description

The present invention will be further explained below with reference to the drawings (the bending direction of ripping tooth body 3 will be described below as the rear).

This high-efficient agitator is used to excavator includes articulated seat part and scarification tooth part.

As shown in fig. 1 to 3, the hinge base portion includes a hinge ear plate 1 and a bottom plate 2, the hinge ear plate 1 is provided with a movable arm hinge mounting hole and a bucket rod hinge mounting hole which are axially arranged along the left-right direction, and the bottoms of the hinge ear plates 1 which are symmetrically arranged in the left-right direction are fixedly connected with the top plane of the bottom plate 2.

The scarification tooth part comprises a scarification tooth body 3 which is of a dog-shaped structure and is vertically arranged integrally, the lower part of the scarification tooth body 3 is bent backwards, the top end of the scarification tooth body 3 is fixedly connected with the bottom plane of the bottom plate 2, the top end of the bottom of the scarification tooth body 3 is sleeved with a replaceable bucket tooth 7, at least one cutting tooth 4 which is connected with the scarification tooth body 3 in a positioning mode through a cutting tooth seat 5 is arranged on the arc-shaped front end face of the scarification tooth body 3 in a protruding mode, and an included angle between arc faces of the arc-shaped front end face positioning connection positions of the scarification tooth body 3 corresponding to the shaft axis of the cutting tooth 4 and the cutting tooth seat 5 is an acute angle.

When the efficient ripper for the excavator is installed on the excavator through the movable arm hinged installation hole and the bucket rod hinged installation hole for use, in the process of backward overturning around the excavator movable arm hinged axis of the hinged lug plate 1 under the driving of the bucket rod, under the condition that the ripped soil is excavated to a certain depth, the tip of the bucket tooth 7 extends into the ground under the action of downward pressing and load applying to firstly loosen the soil, larger hard rocks in the stratum have the tendency of backward overturning and moving under the shearing force action of the bucket tooth 7 overturning backward to realize primary ripping, the ripping tooth body 3 is continuously overturned backward, the cutting tooth 4 on the arc front end surface of the ripping tooth body 3 can secondarily loosen the soil on an excavation depth track surface formed after the bucket tooth 7 loosens the soil and secondarily apply overturning shearing force to the larger hard rocks in the stratum, and further drives the larger hard rocks in the stratum to secondarily have the tendency of backward overturning and moving, Further loosening larger hard rocks in the stratum, thereby improving the soil loosening efficiency of each tipping operation.

When the included angle between the axial lead of the cutting tooth 4 and the cambered surface of the positioning and mounting position of the cutting block 5 corresponding to the arc-shaped front end face of the loosening tooth body 3 is too large, the loosening efficiency is high, but the abrasion is serious, and when the included angle is too small, the required feeding force is increased, the cutting tooth 4 is easily overloaded, the load in the tip direction of the cutting tooth 4 is larger, and the work is not facilitated, so that the abrasion loss is reduced on the premise of realizing better secondary loosening effect and ensuring the supporting strength of the cutting tooth 4, and as a further improvement scheme of the utility model, the range of the included angle between the axial lead of the cutting tooth 4 and the cambered surface of the positioning and mounting position of the cutting block 5 corresponding to the arc-shaped front end face of the loosening tooth body 3 is 40-50 degrees.

In order to realize multiple loosening of the soil in each tipping operation, as a further improvement of the utility model, a plurality of cutting teeth 4 are uniformly distributed along the radian trend of the arc front end surface of the loosening tooth body 3.

In order to further improve the soil loosening efficiency of each tipping operation, as a further improvement of the utility model, the soil loosening tooth main bodies 3 are uniformly distributed and arranged in a plurality of side-by-side relative to the bottom plate 2, and the plurality of soil loosening tooth main bodies 3 arranged in side-by-side are fixedly connected through reinforcing ribs.

In order to reduce the abrasion of the ripping tooth main body 3 in the ripping process, as a further improvement scheme of the utility model, at least the arc-shaped rear end surface of the ripping tooth main body 3 is provided with a protective tooth sleeve 6.

In order to facilitate the quick disassembly and replacement of the cutting pick 4, as a further improvement scheme of the utility model, the cutting pick seat 5 is provided with a cutting pick mounting hole, and the cutting pick 4 is connected with the cutting pick mounting hole of the cutting pick seat 5 through a thread or a positioning pin.

Claims

1. A high-efficiency scarifier for an excavator comprises a hinge seat part and a scarification tooth part; the hinged seat part comprises hinged lug plates (1) and a bottom plate (2), movable arm hinged mounting holes and bucket rod hinged mounting holes which are arranged along the left-right direction in the axial direction are formed in the hinged lug plates (1), and the bottoms of the hinged lug plates (1) which are symmetrically arranged in the left-right direction are fixedly connected with the top plane of the bottom plate (2); the soil loosening tooth part comprises a soil loosening tooth main body (3) which is integrally vertically arranged, the lower part of the soil loosening tooth main body is bent backwards to form a dog-shaped structure, the top end of the soil loosening tooth main body (3) is fixedly connected with the bottom plane of the bottom plate (2), and the tip of the bottom of the soil loosening tooth main body (3) is sleeved with a replaceable bucket tooth (7); it is characterized in that the preparation method is characterized in that,

the front arc-shaped end face of the ripping tooth main body (3) is at least convexly provided with a cutting tooth (4) which is connected with the ripping tooth main body (3) in a positioning way through a cutting tooth seat (5), and an included angle between the axial lead of the cutting tooth (4) and the arc face of the cutting tooth seat (5) corresponding to the front arc-shaped end face positioning connection position of the ripping tooth main body (3) is an acute angle.

2. The efficient ripper for the excavator according to claim 1, wherein an included angle between an axial line of the cutting tooth (4) and an arc surface of a positioning and mounting position of the cutting tooth seat (5) corresponding to the arc-shaped front end face of the ripping tooth body (3) is 40-50 degrees.

3. The efficient ripper for excavators according to claim 1 or 2, characterized in that the cutting teeth (4) are uniformly arranged in plurality along the arc-shaped trend of the arc-shaped front end surface of the ripping tooth body (3).

4. The efficient ripper of claim 1 or 2, wherein the ripping tooth bodies (3) are uniformly distributed in a plurality of rows on the left and right sides of the bottom plate (2), and the ripping tooth bodies (3) are fixedly connected through reinforcing ribs.

5. The high-efficiency ripper for excavators according to claim 1 or 2, characterized in that a protective tooth sleeve (6) is attached to at least the arc-shaped rear end surface of the ripping tooth body (3).

6. The efficient ripper for the excavator of claim 1 or 2, wherein a cutting pick mounting hole is formed in the cutting pick seat (5), and the cutting pick (4) is connected with the cutting pick mounting hole of the cutting pick seat (5) through a thread or a positioning pin.