CN213886435U

CN213886435U - Reinforced material throwing head of sand making machine

Info

Publication number: CN213886435U
Application number: CN202022425904.2U
Authority: CN
Inventors: 陈明军; 何浩; 章也; 沈红仁; 朱彦兴
Original assignee: Guangxi Sidaben Material Technology Co ltd
Current assignee: Guangxi Sidaben Material Technology Co ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-08-06
Anticipated expiration: 2030-10-27

Abstract

The utility model relates to a reinforced sand making machine throwing stub bar, which comprises a throwing stub bar body and an installation part connected with the throwing stub bar body, wherein the installation part is connected with the rear end face of the throwing stub bar body, the included angle between the installation part and the throwing stub bar body is an obtuse angle, and one end of the throwing stub bar body, which is far away from the installation part, is a throwing stub bar working tooth body; the end face of the throwing head working tooth body is respectively provided with a rectangular groove for embedding the wear-resistant block and sliding grooves for embedding the hard alloy protection columns in a concave mode, and the sliding grooves are symmetrically arranged on the upper side and the lower side of the rectangular groove; the wear-resistant blocks are connected and positioned in the rectangular grooves, and the hard alloy protection columns are respectively connected and positioned in the sliding grooves. The utility model discloses from engineering mechanics angle, through the mode of addding wear-resisting piece and carbide guard post throwing stub bar work tooth body department, strengthened the wearability and the shock resistance of throwing the stub bar front end, the life that the stub bar was thrown to extension system sand machine.

Description

Reinforced material throwing head of sand making machine

Technical Field

The utility model belongs to the technical field of system sand machine spare part, a system sand machine throws stub bar is related to.

Background

The throwing head belongs to the core part of a vertical impact crusher (sand making machine), and is widely applied to the industries of mines, sand stones, cement, metallurgy, hydroelectric engineering and the like. In the material sand making process, the material throwing head of the sand making machine plays a main role in crushing, and the whole operation effect of the machine is directly influenced by the wear resistance of the material throwing head.

In actual use, the rotor of the sand making machine rotates at a high speed, so that materials have large acting force on the material throwing head which plays a main crushing role, and the requirements on the impact resistance and the wear resistance of the material throwing head are extremely high. The main working part of the throwing head of the sand making machine is the tooth part of the throwing head, and the prior art strengthens the local performance of the throwing head by embedding a wear-resistant block on the tooth part of the throwing head, improves the wear resistance and the impact resistance, and further prolongs the service life of the throwing head. But the reinforcing effect of wear-resisting piece is limited, can not improve by a wide margin throwing stub bar's whole mechanical properties to, throwing the stub bar and being the integral type structure again, when throwing the stub bar wearing and tearing to a certain extent, throwing the stub bar and need wholly change, when the waste cost, also reduced production efficiency, wasted time and energy, the cost is higher. Through observation and analysis of technicians, the mechanical property of the gear body part around the wear-resistant block is poor, the overall mechanical property of the gear body part is lowered, and the technicians improve the throwing head after problems are found.

Disclosure of Invention

The utility model aims at providing a stub bar is thrown to simple structure, convenient strenghthened type system sand machine of processing, further reinforces through engineering mechanics angle and throws the stub bar, improves its wear resistance and shock resistance, and the life of stub bar is thrown to extension system sand machine, the effectual problem of having solved the background art existence.

The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: a reinforced sand making machine throwing head comprises a throwing head body and an installation part connected with the throwing head body, wherein the installation part is connected with the rear end face of the throwing head body, an included angle between the installation part and the throwing head body is an obtuse angle larger than 90 degrees, and one end of the throwing head body, far away from the installation part, is a throwing head working tooth body; the end face of the throwing head working tooth body is respectively provided with a rectangular groove for embedding the wear-resistant block and sliding grooves for embedding the hard alloy protection columns in a concave mode, and the sliding grooves are symmetrically arranged on the upper side and the lower side of the rectangular groove; the wear-resistant blocks are connected and positioned in the rectangular grooves, and the hard alloy protection columns are respectively connected and positioned in the sliding grooves.

The utility model discloses a further technical scheme is: the wear-resistant block is in clearance fit with the rectangular groove and fixedly connected with the rectangular groove through brazing; brazing filler metal and a welding flux for brazing are placed in a gap between the rectangular groove and the wear-resistant block, the brazing filler metal is silver-based or copper-based brazing filler metal, and the welding flux is fluxing welding flux.

The utility model discloses a further technical scheme is: the hard alloy protection column is in clearance fit with the sliding chute, and is fixedly connected with the sliding chute through brazing; brazing filler metal and a welding flux for brazing are placed in a gap between the sliding groove and the hard alloy protection column, the brazing filler metal is silver-based or copper-based brazing filler metal, and the welding flux is fluxing welding flux.

The utility model discloses a further technical scheme is: the number of the hard alloy protection columns is 12-26, and the number of the sliding grooves is consistent with that of the hard alloy protection columns.

The utility model discloses a further technical scheme is: the bottom that the material throwing head body was kept away from to the installation department is equipped with the bolt hole that is used for being connected with system sand machine, the drill way of bolt hole is provided with 30 chamfers.

The utility model discloses a further technical scheme is: the material throwing head body and the installation part are integrally cast and molded.

The utility model relates to a strenghthened type sand making machine throws stub bar has following beneficial effect owing to adopt above-mentioned scheme:

1. the utility model, starting from the angle of engineering mechanics, enhances the wear resistance and shock resistance of the front end of the throwing head and prolongs the service life of the throwing head of the sand making machine by adding the wear-resistant block and the hard alloy protection column at the working tooth body part of the throwing head;

2. the wear-resistant block is embedded at the end part of the working tooth body of the throwing head, so that the strength of the throwing head body can be increased, and the abrasion deformation of the throwing head of the sand making machine is effectively reduced;

3. the utility model discloses wear-resisting piece, carbide guard post and throw stub bar work tooth body be connected and adopt the brazing process, great improvement the bonding strength between them, improved the system sand machine on the whole and thrown the life of stub bar, prolonged rotor maintenance cycle, reduced the replacement cost, improved production efficiency.

The following description will be further made on a reinforced sand making machine throwing head according to the present invention with reference to the accompanying drawings and embodiments.

Drawings

Fig. 1 is a schematic structural view of a throwing head of a reinforced sand making machine of the present invention;

FIG. 2 is a schematic view of the exploded structure of the present invention;

FIG. 3 is a front view of the projectile head working pick body;

the reference numbers illustrate: the method comprises the following steps of 1-throwing head body, 11-throwing head working tooth body, 12-sliding chute, 13-rectangular groove, 2-mounting part, 3-bolt hole, 4-hard alloy protection column and 5-wear-resistant block.

Detailed Description

As shown in fig. 1-3, the utility model relates to a strenghthened type sand making machine throws stub bar, including throwing stub bar body 1 and with the installation department 2 of throwing stub bar body 1 connection, installation department 2 is connected with the rear end face of throwing stub bar body 1, and installation department 2 and the contained angle of throwing stub bar body 1 be for being greater than 90 obtuse angle, throw stub bar body 1 and installation department 2 formula casting shaping as an organic whole, in addition, installation department 2 keeps away from the bottom of throwing stub bar body 1 and is equipped with the bolt hole 3 that is used for being connected with the sand making machine rotor, the drill way of bolt hole 3 is provided with 30 chamfers.

The utility model discloses an one end of throwing stub bar body 1 far away from installation department 2 is throwing stub bar work dentition body 11, is inlayed on throwing stub bar work dentition body 11 and is had wear-resisting piece 5 and a plurality of carbide guard post 4, the terminal surface of throwing stub bar work dentition body 11 is sunken respectively to be equipped with the rectangle recess 13 that is used for inlaying wear-resisting piece 5 and is used for inlaying the spout 12 of carbide guard post 4, spout 12 symmetry sets up in rectangle recess 13 upper and lower both sides; the wear-resistant blocks 5 are connected and positioned in the rectangular grooves 13, and the hard alloy protection columns are respectively connected and positioned in the sliding grooves 12. The utility model is based on the engineering mechanics, the wear resistance and the shock resistance of the front end of the throwing head are enhanced by adding the wear-resistant block 5 and the hard alloy protection column 4 at the working tooth body 11 of the throwing head, and the service life of the throwing head of the sand making machine is prolonged; in addition, the end part of the material throwing head working tooth body 11 is embedded with the wear-resistant block 5, so that the strength of the material throwing head body 1 can be increased, and the wear deformation of the material throwing head of the sand making machine is effectively reduced.

It should be mentioned that, in this embodiment, the wear-resistant block 5 is in clearance fit with the rectangular groove 13, and the wear-resistant block 5 is fixedly connected with the rectangular groove 13 by brazing; brazing filler metal and a welding flux for brazing are placed in a gap between the rectangular groove 13 and the wear-resistant block 5, the brazing filler metal is silver-based or copper-based brazing filler metal, and the welding flux is fluxing welding flux. The hard alloy protection column 4 is in clearance fit with the sliding chute 12, and the hard alloy protection column 4 is fixedly connected with the sliding chute 12 through brazing; brazing filler metal and a welding flux for brazing are placed in a gap between the sliding groove 12 and the hard alloy protection column 4, the brazing filler metal is silver-based or copper-based brazing filler metal, and the welding flux is fluxing welding flux. The utility model discloses a wear-resisting piece 5, carbide guard post 4 adopt the brazing process with throwing being connected of stub bar work tooth body 11, great improvement the bonding strength between them, improved the life that the stub bar was thrown to the system sand machine on the whole, prolonged rotor maintenance cycle, reduced the replacement cost, improved production efficiency.

Additionally, the utility model relates to a strenghthened type sand making machine throws the stub bar can set up to throw the stub bar for the short money, the stub bar is thrown to well long money and the stub bar is thrown to the long money according to operating condition needs, the quantity of carbide guard post 4 is 12~26, the quantity of spout 12 is unanimous with the quantity of carbide guard post 4.

12 hard alloy protection columns 4 are embedded on the short throwing head working tooth body 11, and the 12 hard alloy protection columns 4 are symmetrically distributed on the upper side and the lower side of the wear-resistant block 5; 22 hard alloy protection columns 4 are embedded on the middle-long throwing head working tooth body 11, and the 22 hard alloy protection columns 4 are symmetrically distributed on the upper side and the lower side of the wear-resistant block 5; 26 hard alloy protection columns 4 are embedded on the long throwing head working tooth body 11, and the 26 hard alloy protection columns 4 are symmetrically distributed on the upper side and the lower side of the wear-resistant block 5; of course, the number of the hard alloy protection columns 4 embedded in the throwing head working gear body 11 is not limited to the above list, and can be set according to actual needs.

The above embodiments are only preferred embodiments of the present invention, the structure of the present invention is not limited to the forms illustrated in the above embodiments, and any modifications, equivalent substitutions and the like made within the spirit and principle of the present invention should be included within the scope of the present invention.

Claims

1. A reinforced sand making machine throwing head comprises a throwing head body (1) and a mounting part (2) connected with the throwing head body (1), wherein the mounting part (2) is connected with the rear end face of the throwing head body (1), an included angle between the mounting part (2) and the throwing head body (1) is an obtuse angle larger than 90 degrees, and one end, far away from the mounting part (2), of the throwing head body (1) is a throwing head working tooth body (11); the method is characterized in that: the polishing head is characterized by further comprising a wear-resistant block (5) and a plurality of hard alloy protection columns (4), rectangular grooves (13) used for embedding the wear-resistant block (5) and sliding chutes (12) used for embedding the hard alloy protection columns (4) are respectively formed in the end face of the polishing head working tooth body (11) in a recessed mode, and the sliding chutes (12) are symmetrically arranged on the upper side and the lower side of each rectangular groove (13); the wear-resistant blocks (5) are connected and positioned in the rectangular grooves (13), and the hard alloy protection columns are respectively connected and positioned in the sliding grooves (12).

2. The reinforced sand making machine throwing head of claim 1, wherein: the wear-resistant block (5) is in clearance fit with the rectangular groove (13), and the wear-resistant block (5) is fixedly connected with the rectangular groove (13) through brazing; brazing filler metal and a welding flux for brazing are placed in a gap between the rectangular groove (13) and the wear-resistant block (5), the brazing filler metal is silver-based or copper-based brazing filler metal, and the welding flux is fluxing welding flux.

3. The reinforced sand making machine throwing head of claim 1, wherein: the hard alloy protection column (4) is in clearance fit with the sliding chute (12), and the hard alloy protection column (4) is fixedly connected with the sliding chute (12) through brazing; brazing filler metal and a welding flux for brazing are placed in a gap between the sliding groove (12) and the hard alloy protection column (4), the brazing filler metal is silver-based or copper-based brazing filler metal, and the welding flux is fluxing welding flux.

4. The reinforced sand making machine throwing head of claim 1, wherein: the number of the hard alloy protection columns (4) is 12-26, and the number of the sliding grooves (12) is consistent with that of the hard alloy protection columns (4).

5. The reinforced sand making machine throwing head of claim 1, wherein: the bottom of throwing stub bar body (1) is kept away from in installation department (2) is equipped with bolt hole (3) that are used for being connected with system sand machine rotor, the drill way of bolt hole (3) is provided with 30 chamfers.

6. The reinforced sand making machine throwing head of claim 1, wherein: the casting head body (1) and the mounting part (2) are cast and molded integrally.