CN204261920U

CN204261920U - High frequency built-up welding scalariform comb shape sieve plate

Info

Publication number: CN204261920U
Application number: CN201420623704.XU
Authority: CN
Inventors: 平超凡; 辛海斌; 赵伟; 徐好武; 吴振卿
Original assignee: Zhengzhou University
Current assignee: Zhengzhou University
Priority date: 2014-10-27
Filing date: 2014-10-27
Publication date: 2015-04-15
Anticipated expiration: 2024-10-27

Abstract

The utility model relates to a kind of material screening high frequency built-up welding scalariform comb shape sieve plate, belongs to materials-handling technology equipment field.The comb shape sieve plate adopting comb shape grating to produce uses on the vibrating in a large number, can effectively prevent sieve plate hole from screening process, occurring material blocking.Comb shape grating is carried on the back by bar and bar tooth forms, upper surface compound one deck high frequency build-up wear-resistant layer, the bar tooth of last comb shape grating is with the unsettled bar back being overlapped on a rear comb shape grating of scalariform, form scalariform comb shape sieve plate, comb shape grating bar back of the body lower weld has reinforcement brace rod, and comb shape grating and reinforcement brace rod two ends are all welded on sieve plate framework and form frame-shaped construction, have rational in infrastructure, the anti-ability of pounding of shock resistance is strong, long service life, and sieve aperture such as not easily to block at the series of advantages.

Description

High frequency built-up welding scalariform comb shape sieve plate

Technical field

The utility model relates to a kind of material screening high frequency built-up welding scalariform comb shape sieve plate, belongs to materials-handling technology equipment field.

Background technology

The scalariform comb shape sieve plate adopting comb shape grating to produce uses on the vibrating in a large number, can effectively prevent sieve plate hole from screening process, occurring material blocking.Because comb shape grating generally adopts impact style to produce, for convenience of carrying out smoothly of punching operation, the intensity of grating and hardness can not be too high, otherwise fragile mould.The material of the comb shape grating used aborning is at present generally carbon structural steel.In screening process, grating directly contacts with material, produces fretting wear, and intensity and the hardness of the grating adopting carbon structural steel to produce are very low, and the non-constant of anti-wear performance, causes the life-span of sieve plate very short, has a strong impact on the normal use of sieve plate.In addition, sieve plate will be subject to the impulsive force of material and the effect of vibrating inertia force in the course of the work, due to grating thinner thickness, bar across back degree is narrower, rigidity is lower, and comb shape grating easily produces flexural deformation in the course of the work, has a strong impact on the normal use of scalariform comb shape sieve plate, hardness and intensity for this reason in the urgent need to taking corresponding technological measure to improve comb shape grating, solve short problem in its service life.

Utility model content

The purpose of this utility model is just to provide a kind of high frequency built-up welding scalariform comb shape sieve plate, and it can solve the problem of flexible distortion in short and use procedure in aforementioned comb shape grating service life effectively.

The purpose of this utility model is achieved in that a kind of screening materials carrying high frequency built-up welding scalariform comb shape sieve plate, comprise comb shape grating, sieve plate framework, comb shape grating is carried on the back by bar and bar tooth forms, and upper surface heap is welded with high hard wearing layer, a comb shape grating bar back after last comb shape grating bar tooth is overlapped on, the stepped distribution of adjacent comb shape grating, in the bar back of the body bottom of each block comb shape grating, be all welded with one and strengthen brace rod, strengthen brace rod two ends together with sieve plate frame welding.

The lap width of last comb shape grating on a rear comb shape grating is less than the width of the comb shape grating bar back of the body.

Adopt comb shape grating welding production scalariform comb shape sieve plate, effectively can prevent material blocking to sieve aperture in screening process, improve the screening efficiency of vibratory sieve.

The utility model comb shape grating adopts carbon structural steel material, adopts punching technology to make very easily.After made for the sieve aperture of sieve between cog, adopt high frequency bead-welding technology at sieve tooth upper surface built-up welding one deck high frequency wearable overlay, its hardness is far away higher than carbon structural steel material, and therefore wearability improves greatly, effectively can improve the service life of sieve plate.

In order to ensure the smooth punching of grating, the thickness of grating is generally no more than 4mm.Due to grating thinner thickness, the bar back of the body is narrower, in addition the carbon structural steel material used, grating rigidity is lower, in order to the effect preventing grating to be subject to material impact power and vibrating inertia force in the course of the work produces the normal use that flexural deformation affects sieve plate, brace rod is strengthened at each comb shape grating bar back of the body lower weld, strengthen brace rod two ends and sieve plate frame welding, each comb shape grating is all subject to the effective support in vertical direction like this, and forming frame-shaped construction by comb shape grating, reinforcement brace rod and sieve plate framework, Rigidity and strength improves greatly.Be positioned at comb shape grating bar back of the body bottom completely owing to strengthening brace rod simultaneously, the sieving actoion of sieve plate do not had any impact, there is obviously advantage.

The lap width of bar tooth on a rear comb shape grating of last comb shape grating is less than the width of the bar back of the body, slips over the part sieve aperture near the grating bar back of the body when can prevent material from rolling on compass screen surface, reduces screening efficiency.

Accompanying drawing explanation

Figure 1 shows that the structure chart of comb shape grating;

Figure 2 shows that the sectional view of the A--A section of Fig. 1;

Figure 3 shows that the structure chart of high frequency built-up welding scalariform comb shape sieve plate;

Figure 4 shows that the sectional view of the B--B section of Fig. 3.

Detailed description of the invention

In Fig. 1, comb shape grating is carried on the back 1 by bar tooth 2 and bar and is formed, and bar tooth is trapezium structure, root wider width, and teeth portion width is narrower, is the hole after punching press between bar tooth.Fig. 2 shows the cross-section structure of comb shape grating A--A position in Fig. 1, is welded with high frequency build-up wear-resistant layer 3, can improves the anti-wear performance of sieve plate at the upper surface heap of comb shape grating.Fig. 3 is the structure chart of the high frequency built-up welding scalariform comb shape sieve plate that the welding of comb shape grating overlap joint is formed, in the figure, the bar tooth of last comb shape grating is overlapped on the bar back of a rear comb shape grating, same comb shape grating adjacent strip tooth and overlap comb shape grating bar the back of the body between neutral be sieve aperture 4, the shape of sieve aperture 4 is taper, can prevent from occurring clogging in screening process.In figure, 5 is sieve plate framework, comb shape grating two ends are welded on sieve plate framework, 6 is scalariform comb shape sieve plate installing hole, 7 is the supporting rib stiffener of comb shape grating lower weld, two ends and the sieve plate framework 5 of strengthening brace rod weld together, form frame-shaped construction, increase the strength and stiffness of high frequency built-up welding scalariform comb shape sieve plate.

Claims

1. a screening materials carrying high frequency built-up welding scalariform comb shape sieve plate, comprise comb shape grating, sieve plate framework, it is characterized in that: comb shape grating is carried on the back by bar and bar tooth forms, upper surface heap is welded with high hard wearing layer, a comb shape grating bar back after last comb shape grating bar tooth is overlapped on, the stepped distribution of adjacent comb shape grating, in the bar back of the body bottom of each block comb shape grating, be all welded with one and strengthen brace rod, strengthen brace rod two ends together with sieve plate frame welding.

2. high frequency built-up welding scalariform comb shape sieve plate according to claim 1, is characterized in that: the lap width of last comb shape grating on a rear comb shape grating is less than the width of the comb shape grating bar back of the body.