CN113898026B

CN113898026B - Excavator tooth point and manufacturing method thereof

Info

Publication number: CN113898026B
Application number: CN202111196594.4A
Authority: CN
Inventors: 张宗强
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-20
Filing date: 2021-10-20
Publication date: 2023-02-03
Anticipated expiration: 2041-10-20
Also published as: CN113898026A

Abstract

The invention relates to the technical field of excavator accessories, in particular to an excavator tooth tip and a manufacturing method thereof. The excavator prong includes the tooth body and installation department, and the tooth body is including strikeing piece and second reinforcing plate, and the piece of strikeing is including strikeing board and first reinforcing plate, and the one end of first reinforcing plate and second reinforcing plate is connected with first constructional plate, and the both sides of two first constructional plates are connected through the second constructional plate respectively, and first constructional plate and second constructional plate are kept away from most advanced one end with the strikeing board and are connected. The method comprises the steps of firstly cutting an impact piece by using a waste steel rail, then cutting a second reinforcing plate, a first construction plate and a second construction plate, and then welding the second reinforcing plate, the first construction plate and the second construction plate together to form the tooth point of the excavator. The invention has longer service life and lower cost, can change waste into valuable, and improves the utilization rate of resources.

Description

Excavator tooth point and manufacturing method thereof

Technical Field

The invention relates to the technical field of excavator accessories, in particular to an excavator tooth tip and a manufacturing method thereof.

Background

The excavator tooth point is an important consumable part on an excavator, belongs to the component of bucket teeth (the bucket teeth comprise a tooth base and a tooth point, and the tooth point is installed on the tooth base), is similar to human teeth, and when the tooth point is worn, a new tooth point can be replaced, while the tooth base does not need to be replaced. The tooth tip in the prior art is similar to a slightly bent quadrangular pyramid shape and is generally manufactured by adopting a die forging process, the tooth tip produced by the die forging process is complex in process, high in cost and low in durability, and the service life is about 40 hours generally.

On the other hand, china has a large amount of waste steel rails, the recovery and smelting cost is high due to special components, and the waste steel rails are difficult to reuse due to special shapes and can only be buried on the spot, so that huge waste is caused.

Disclosure of Invention

The invention aims to solve the technical problems and provides the excavator tooth point and the manufacturing method thereof aiming at the technical defects.

According to the technical scheme, the tooth point of the excavator comprises a tooth body and an installation part, wherein the tooth body comprises an impact piece and a second reinforcing plate, the impact piece comprises an impact plate with a sharp end, one side of the impact plate is provided with a first reinforcing plate, the second reinforcing plate is located on the other side of the impact plate, one ends, far away from the sharp end, of the first reinforcing plate and one end, far away from the sharp end, of the second reinforcing plate are both connected with a first construction plate, two opposite sides of the two first construction plates are respectively connected through a second construction plate, the installation part is formed by a cylindrical structure formed by the first construction plate and the second construction plate, the second construction plate is provided with a through hole for installation, and the first construction plate and the second construction plate are connected with one end, far away from the sharp end, of the impact plate.

Preferably, one end of the first reinforcing plate, which is far away from the tip end, is provided with a first mounting surface, the first mounting surface extends out of the end of the impact plate, and the first mounting surface is inclined with the upper surface of the impact plate; a second mounting surface is arranged at one end, far away from the tip, of the second reinforcing plate, extends out of the end of the impact plate, and inclines to the lower surface of the impact plate; the first structural plate is connected with the first mounting surface or the second mounting surface respectively.

Preferably, the first structural panel is a rectangular-shaped panel, and the second structural panel is a trapezoidal-shaped panel.

Preferably, the first reinforcing plate and the second reinforcing plate have a thickness of 2 to 5 cm.

The manufacturing method of the excavator tooth point comprises the following steps:

s1: cutting off the whole bottom and part of the belly of the steel rail to obtain a first blank;

s2: cutting the first blank obtained in the step S1 to obtain a plurality of intermediate bodies 4 with first reinforcing plates;

s3: cutting the intermediate obtained in the step S2 to enable the intermediate to have a tip, so as to obtain a shock piece;

s4: respectively manufacturing a second reinforcing plate, a first constructional plate and a second constructional plate, and manufacturing through holes on the second constructional plate;

s5: welding the second reinforcing plate obtained in the step S4 on the impact piece obtained in the step S3 to obtain a tooth body;

s6: respectively welding the first structural plates to the tooth body obtained in the step S5, then welding the first structural plates and the second structural plates between the two first structural plates, and finally welding the first structural plates, the second structural plates and the end, far away from the tip, of the impact plate together to obtain the excavator tooth tip; or welding the first construction plate and the second construction plate into an installation part, and then welding the installation part and the tooth body together to obtain the excavator tooth tip.

Preferably, in the step S2, both end surfaces of the obtained first reinforcing plate are inclined with respect to the extending direction of the impact plate when the first material is cut.

Preferably, the second reinforcing plate, the first structural plate and the second structural plate are cut from the steel rail.

Preferably, the second reinforcing plate, the first structural plate and the second structural plate are cut from another steel plate having a composition close to that of the rail.

Preferably, the second reinforcing plate is cut from a web portion of the rail, and the first structural plate and the second structural plate are cut from another steel plate having a composition close to that of the rail.

Compared with the prior art, the invention has the following advantages: 1. the impact piece is made of waste steel rails, so that the strength is high, the impact resistance is good, and the service life is long; 2. the structure is simple, mass production is easy, and high-energy-consumption and high-cost equipment such as heating and die forging are not needed; 3. the waste steel rails are used for manufacturing the steel rail, so that the cost is low, the economic benefit is good, the waste can be changed into the valuable, and the utilization rate of resources is improved.

Drawings

Fig. 1 is a schematic structural view of an excavator tooth tip.

Fig. 2 is an exploded view of an excavator tooth point.

Fig. 3 is a schematic structural diagram of the first blank in step S1.

FIG. 4 is a schematic diagram of the structure of the intermediate in step S2.

Fig. 5 is a schematic structural view of the impact member in step S3.

In the figure: 1. a tooth body; 11. an impact member; 111. a first reinforcing plate; 1111. a first mounting surface; 112. an impact plate; 1121. a tip; 12. a second reinforcing plate; 121. a second mounting surface; 2. an installation part; 21. a first build plate; 22. a second build plate; 31. a head; 32. the abdomen; 33. a bottom; 4. an intermediate; 41. a side bevel.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the accompanying drawings in combination with the embodiments. It is to be understood that these descriptions are only illustrative and are not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

The specific implementation mode is as follows: referring to fig. 1-5, the tooth tip of the excavator comprises a tooth body 1 and a mounting part 2. The tooth body 1 comprises an impact piece 11 and a second reinforcing plate 12, wherein the impact piece 11 comprises an impact plate 112 provided with a tip 1121, three sides of the tip 1121 are inclined to the end face, the other side of the tip 1121 is perpendicular to the end face, a first reinforcing plate 111 is arranged on one side of the impact plate 112, and the second reinforcing plate 12 is located on the other side of the impact plate 112. The ends, far away from the tip 1121, of the first reinforcing plate 111 and the second reinforcing plate 12 are connected with first construction plates 21, two opposite sides of the two first construction plates 21 are connected through second construction plates 22 respectively, the installation portion 2 is formed by a cylindrical structure formed by the first construction plates 21 and the second construction plates 22, the interior of the installation portion 2 is a cavity, one side of the cavity is open and is used for being connected with a tooth holder, the structure and the size of the cavity inside the installation portion 2 are matched with the tooth holder, a through hole for installation is formed in the second construction plate 22, the tooth tip can be fixed by penetrating the through hole and the tooth holder through a pin, the first construction plate 21 and the second construction plate 22 are connected with the end, far away from the tip 1121, of the impact plate 112, and the strength and the impact resistance of the installation portion 2 are enhanced.

One end of the first reinforcing plate 111, which is far away from the tip 1121, is provided with a first mounting surface 1111, the first mounting surface 1111 extends out from the end of the impact plate 112, and the first mounting surface 1111 is inclined with the upper surface of the impact plate 112; the end of the second reinforcing plate 12 away from the tip 1121 is provided with a second mounting surface 121, the second mounting surface 121 protrudes from the end of the impact plate 112, and the second mounting surface 121 is inclined to the lower surface of the impact plate 112. The first configuration board 21 is connected to the first mounting surface 1111 or the second mounting surface 121, respectively. The structure has high bonding strength between the mounting part 2 and the tooth body 1. The first configuration plate 21 is a rectangular plate, and the second configuration plate 22 is a trapezoidal plate.

Preferably, the thickness of the first reinforcing plate 111 and the second reinforcing plate 12 is 2-5 cm, and the load-bearing capacity is better.

The manufacturing method of the excavator tooth tip comprises the following steps:

s1: cutting off all the bottom 33 and part of the belly 32 of the rail to leave the head 31 and part of the belly 32, and obtaining a first blank;

s2: cutting the first blank obtained in step S1 to obtain a plurality of intermediate bodies 4 with the first reinforcing plates 111; the first reinforcing plate 111 is formed by the web 32, and the impact plate 112 is formed by the head 31;

s3: cutting the intermediate body 4 obtained in the step S2 to make the intermediate body 4 have a tip 1121, so as to obtain a striker 11; specifically, a part of both sides of the head 31 is cut off, and the cross section of the cut-off part is triangular, so that side inclined planes 41 appear on both sides of the tip 1121; the tip 1121 may be polished to be smooth and attractive;

s4: respectively manufacturing a second reinforcing plate 12, a first constructional plate 21 and a second constructional plate 22, and manufacturing through holes on the second constructional plate 22;

s5: welding the second reinforcing plate 12 obtained in the step S4 on the impact piece 11 obtained in the step S3 to obtain a tooth body 1;

s6: respectively welding the first construction plates 21 to the tooth body 1 obtained in the step S5, then welding the first construction plates and the second construction plates 22 between the two first construction plates 21, and finally welding the first construction plates 21 and the second construction plates 22 and one ends of the impact plates 112 far away from the tip 1121 to obtain the excavator tooth tip; or the first construction plate 21 and the second construction plate 22 are welded into the mounting part 2, and then the mounting part 2 and the tooth body 1 are welded together to obtain the excavator tooth tip. The joint of the first structural plate 21 and the second structural plate 22, the joint of the first structural plate 21 and the impact plate 112, and the joint of the second structural plate 22 and the impact plate 112 are welded at the inner side and the outer side, and preferably welded for multiple times, so as to enhance the strength. The obtained excavator tooth tip can be polished and painted, so that the excavator tooth tip is attractive and has certain waterproof and antirust performances.

In the step S2, both end surfaces of the obtained first reinforcing plate 111 are inclined to the extending direction of the impact plate 112 so as to cut out the first mounting surface 1111 when the first material is cut, and both end surfaces of the second reinforcing plate 12 are also inclined to the extending direction of the rail so as to cut out the second mounting surface 121 in the step S4, so that the size of the excavator tooth point from the front end to the rear end becomes larger and the supporting performance is good when the excavator tooth point is used.

The second reinforcing plate 12, the first structural plate 21 and the second structural plate 22 may be cut from the rail, may be cut from the foot 33 or the web 32 (may be optionally ground as appropriate), or may be cut from another steel plate having a composition close to that of the rail, and the second reinforcing plate 12 is preferably cut from the web 32 of the rail.

In the manufacturing process, laser cutting is preferably adopted for all cutting, cutting and excising modes.

The utility model provides an excavator prong, its core component impact member 11 utilizes old and useless rail to make, and the cost is lower on the one hand, and on the other hand is because rail intensity is higher, so 11 intensity of impact member of making are also higher, and the impact resistance is stronger, and life is about the twice of prior art excavator prong (prior art's prong life is about 40 hours, and the excavator prong life of this application is about 96 hours).

Claims

1. A method for manufacturing an excavator tooth point, the excavator tooth point comprises a tooth body (1) and a mounting portion (2), the tooth body (1) comprises an impact piece (11) and a second reinforcing plate (12), the impact piece (11) comprises an impact plate (112) provided with a tip (1121), one side of the impact plate (112) is provided with a first reinforcing plate (111), the second reinforcing plate (12) is positioned at the other side of the impact plate (112), one ends, far away from the tip (1121), of the first reinforcing plate (111) and the second reinforcing plate (12) are both connected with a first construction plate (21), two opposite sides of the first construction plate (21) are respectively connected through a second construction plate (22), the mounting portion (2) is formed by a cylindrical structure formed by the first construction plate (21) and the second construction plate (22), the second construction plate (22) is provided with a through hole for mounting, the first construction plate (21) and the second construction plate (22) are connected with one end, far away from the tip (1121), and the method is characterized in that: the impact piece (11) is made of a steel rail through cutting, and the manufacturing process of the impact piece (11) comprises the following steps:

s1: cutting off all bottom parts (33) and partial belly parts (32) of the steel rails to obtain first blanks;

s2: cutting the first blank obtained in the step S1 to obtain a plurality of intermediate bodies (4) with first reinforcing plates (111);

s3: and cutting the intermediate body (4) obtained in the step S2, so that the intermediate body (4) has a tip (1121), and obtaining the impact piece (11).

2. The method for manufacturing an excavator tooth tip according to claim 1, wherein: in the step S2, when the first blank is cut, both end surfaces of the obtained first reinforcing plate (111) are inclined with respect to the extending direction of the impact plate (112).

3. The method of manufacturing an excavator tooth point as claimed in claim 1, further comprising the steps of:

s4: respectively manufacturing a second reinforcing plate (12), a first constructional plate (21) and a second constructional plate (22), and manufacturing through holes on the second constructional plate (22);

s5: welding the second reinforcing plate (12) obtained in the step S4 on the impact piece (11) obtained in the step S3 to obtain a tooth body (1);

s6: respectively welding the first structural plates (21) on the tooth body (1) obtained in the step S5, then welding the first structural plates and the second structural plates (22) between the two first structural plates (21), and finally welding the first structural plates (21), the second structural plates (22) and one ends, far away from the tip (1121), of the impact plates (112) together to obtain the excavator tooth tip; or the first structural plate (21) and the second structural plate (22) are welded into the mounting part (2), and then the mounting part (2) and the tooth body (1) are welded together to obtain the excavator tooth tip.

4. The method of manufacturing an excavator tooth point as claimed in claim 3, wherein: the second reinforcing plate (12), the first structural plate (21) and the second structural plate (22) are cut from a steel rail.

5. The method of manufacturing an excavator tooth point as claimed in claim 3, wherein: the second reinforcing plate (12), the first structural plate (21), and the second structural plate (22) are cut from another steel plate having a composition close to that of the rail.

6. The method of manufacturing an excavator tooth point as claimed in claim 3, wherein: the second reinforcing plate (12) is cut from a web portion (32) of the rail, and the first structural plate (21) and the second structural plate (22) are cut from another steel plate having a composition close to that of the rail.