CN201231224Y

CN201231224Y - Rotary type anti-blocking coal grate

Info

Publication number: CN201231224Y
Application number: CNU200820029641XU
Authority: CN
Inventors: 钟红; 邓国忠
Original assignee: SHAANXI DEZHONG ELECTRIC POWER MACHINERY CO Ltd
Current assignee: SHAANXI DEZHONG ELECTRIC POWER MACHINERY CO Ltd
Priority date: 2008-07-15
Filing date: 2008-07-15
Publication date: 2009-05-06
Anticipated expiration: 2018-07-15

Abstract

The utility model discloses a rotary device for preventing coal from blocking a grate. The device comprises a fixed grid plate arranged above a coal moving machine and having a gradient. A first screen hammer and a second screen hammer are arranged in the middle of the fixed grid plate and on a rotating sieve shaft; and the fixed grid plate and a horizontal plane form an included angle Alpha ranging from 0 to 20 degrees. The utility model has the advantages of reasonable design, simple structure, strong crushing and sieving capability, abrasion resistance, impact resistance and no easy coal viscidity.

Description

Rotary type block-resistant comb device for coal

Technical field

The utility model relates to a kind of coal and loads facility, particularly a kind of rotary type block-resistant comb device for coal.

Background technology

The comb device for coal is a part that is widely used in a kind of equipment-tippler of unloading coal of thermal power plant.The coal that is got off by the tippler dumping is transported to specified point by comb device for coal, group coal machine and belt conveyor with coal.The tippler comb device for coal of each thermal power plant generally uses the grating type vibratory sieve at present.In actual production, the vibration telescoping mechanism of flase floor lower end often is subjected to the obstruction of coal and flase floor can not be playbacked fully in vibration processes, if things go on like this long-pending coal in flase floor lower end is more and more, cause the flase floor vibration to be lost efficacy, oscillating grid has become stationary grizzly, and its consequence is that coal that dumping gets off often is blocked on the compass screen surface (especially with wet coal and to freeze coal common), has to use a large amount of manually clearing up, not only reduce production efficiency, also wasted great amount of manpower and material resources simultaneously.

The utility model content

The purpose of this utility model is the deficiency that exists at prior art, and a kind of rotary type block-resistant comb device for coal with higher fragmentation and sieving capacity and advantages such as wear-resisting, shock-resistant and difficult sticking coal is provided.

The technical solution of the utility model is: a kind of rotary type block-resistant comb device for coal, comprise and be erected at the fixed grating screen of dialling coal machine top and having the gradient, it is characterized in that: the centre that is positioned at the fixed grating screen is provided with a sieve hammer and No. two sieve hammers, and a described sieve hammer and No. two sieve hammers are installed on the sieve axle of rotation; The angle α of described fixed grating screen and horizontal plane is 0～20 °.

The utility model compared with prior art has the following advantages: the utility model is reasonable in design, and is simple in structure, has the advantage of higher breaking capacity and sieving capacity and wear-resisting, shock-resistant and difficult sticking coal.

Description of drawings

Fig. 1 is the structural representation of first kind of specific embodiment of the utility model.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is the structural representation of second kind of specific embodiment of the utility model.

Fig. 4 is the A-A cutaway view of Fig. 3.

Fig. 5 is the structural representation of the third specific embodiment of the utility model.

Fig. 6 is the A-A cutaway view of Fig. 5.

Fig. 7 is the structural representation of the 4th kind of specific embodiment of the utility model.

Fig. 8 is the A-A cutaway view of Fig. 7.

Fig. 9 is the structural representation of a sieve hammer 2 of the utility model.

Figure 10 is the A-A cutaway view of Fig. 9.

Figure 11 is the structural representation of No. two sieve hammers 3 of the utility model.

Figure 12 is the A-A cutaway view of Figure 11.

The specific embodiment

The utility model will be further described below in conjunction with accompanying drawing.

As depicted in figs. 1 and 2, the utility model comprises the fixed grating screen 1 that is erected at group coal machine top and has the gradient, the centre that is positioned at fixed grating screen 1 is provided with 2 and No. two sieve hammers 3 of a sieve hammer, and 2 and No. two sieve hammers 3 of a described sieve hammer are installed on the sieve axle of rotation; Described fixed grating screen 1 is 0～20 ° with the angle α of horizontal plane.

Described sieve axle is for being connected with the active sieve axle 4 of motor 6.

Initiatively the axis direction of sieve axle 4 is vertical with the gradient direction of fixed grating screen 1.

As shown in Figure 3 and Figure 4, the axis direction of described active sieve axle 4 is consistent with the gradient direction of fixed grating screen 1.

As shown in Figure 5 and Figure 6, described sieve axle comprises sieve axle 4 initiatively and and the driven sieve that be rotationally connected parallel by transmission mechanism and sieve axle initiatively 4 spools 5.Initiatively sieve axle 4 is vertical with the gradient direction of fixed grating screen 1 with the axis direction of driven sieve axle 5.

Described transmission mechanism comprises the sprocket wheel 7 that is arranged on initiatively the sieve axle 4 and driven sieve axle 5 and the chain 8 of the sprocket wheel 7 that is rotationally connected.

As shown in Figure 7 and Figure 8, described active sieve axle 4 is consistent with the gradient direction of fixed grating screen 1 with the axis direction of driven sieve axle 5.

As Fig. 9 and shown in Figure 10, a described sieve hammer 2 comprises and being used for and hammer cover 9 that described sieve axle is connected, be positioned on the cylindrical of hammer cover 9 to be connected with hammer dish 10, along the circumference of hammer dish 10 radially, be arranged at intervals with long tup 11 and weak point tup 12.

As Figure 11 and shown in Figure 12, described No. two sieve hammers 3 comprise and being used for and hammer cover 9 that described sieve axle is connected, be positioned at hammer and overlap on 9 the cylindrical and be connected with hammer dish 10, along the circumference of hammer dish 10 radially, five equilibrium is provided with a plurality of cutting teeths 13.

In the utility model when work,, motor 6 drives or drives the rotation of sieve axle by transmission mechanism, and the sieve hammer (comprising 2 and No. two sieve hammers 3 of a sieve hammer) that is provided with mode at a certain distance on the sieve axle, sieve hammer will coal import the below and dial the coal machine in rotary course.The sieve hammer also has broken coal cinder, wooden unit when leading coal, rub effects such as straw rope and removing foreign material.

Claims

1, a kind of rotary type block-resistant comb device for coal, comprise and be erected at the fixed grating screen (1) of dialling coal machine top and having the gradient, it is characterized in that: the centre that is positioned at fixed grating screen (1) is provided with a sieve hammer (2) and No. two sieve hammers (3), and a described sieve hammer (2) and No. two sieve hammers (3) are installed on the sieve axle of rotation; Described fixed grating screen (1) is 0～20 ° with the angle α of horizontal plane.

2, rotary type block-resistant comb device for coal according to claim 1 is characterized in that: described sieve axle is for being connected with the active sieve axle (4) of drive unit.

3, rotary type block-resistant comb device for coal according to claim 1 is characterized in that: the described axle that sieves comprises initiatively sieve axle (4) and driven sieve axle (5) parallel with active sieve axle (4) by transmission mechanism and that be rotationally connected.

4, rotary type block-resistant comb device for coal according to claim 3 is characterized in that: described transmission mechanism comprises the sprocket wheel (7) that is arranged on initiatively the sieve axle (4) and driven sieve spool (5) and the chain (8) of the sprocket wheel that is rotationally connected (7).

5, rotary type block-resistant comb device for coal according to claim 1, it is characterized in that: a described sieve hammer (2) comprises and being used for and a described sieve hammer cover (9) that is connected, be positioned on the cylindrical of hammer cover (9) and be connected with hammer dish (10), be provided with a plurality of long tups (11) and lack tup (12) along circle spacing of hammer dish (10).

6, rotary type block-resistant comb device for coal according to claim 1, it is characterized in that: described No. two sieve hammers (3) comprise and being used for and a described sieve hammer cover (9) that is connected, be positioned on the cylindrical of hammer cover (9) and be connected with hammer dish (10), be provided with a plurality of cutting teeths (13) along the circumference of hammer dish (10).

7, rotary type block-resistant comb device for coal according to claim 2 is characterized in that: the axis direction of described active sieve axle (4) is vertical with the gradient direction of fixed grating screen (1).

8, rotary type block-resistant comb device for coal according to claim 2 is characterized in that: the axis direction of described active sieve axle (4) is consistent with the gradient direction of fixed grating screen (1).

9, rotary type block-resistant comb device for coal according to claim 3 is characterized in that: described active sieve axle (4) is vertical with the gradient direction of fixed grating screen (1) with the axis direction of driven sieve axle (5).

10, rotary type block-resistant comb device for coal according to claim 3 is characterized in that: described active sieve axle (4) is consistent with the gradient direction of fixed grating screen (1) with the axis direction of driven sieve axle (5).