A rake tooth for a stacker-reclaimer

Abstract

The application discloses a kind of rakes for stockpiling and reclaiming mechanism, the rake is installed on material rake device, the material rake device is made of upper structure and lower structure, including including several rake teeth one, several rake teeth two and several rake teeth three, the structure of rake teeth one, rake teeth two and rake teeth three is different, the rake teeth one is installed on the upper half of the upper structure and lower structure of material rake device for raking and conveying upper and middle material, the rake teeth two is installed on the middle part and bottom end part of the lower structure of material rake device for raking and conveying lower material, the rake teeth three is installed on the bottom end part of the lower structure of material rake device for raking and conveying bottom material.The rake for stockpiling and reclaiming mechanism provided by the application can achieve the effect of uniform and stable conveying of material, and has sufficient strength and wear resistance, long service life, easy to process.

Description

Technical Field

[0001] This application relates to the field of material conveying technology, and in particular to a rake tooth for a stacker-reclaimer mechanism. Background Technology

[0002] Currently, in industries such as papermaking, engineered wood products, mining, and coal, manufacturers typically store large quantities of raw materials as production reserves to avoid disrupting production. They also require a high degree of automation, necessitating equipment with large storage capacity and high automation. Circular stacker-reclaimers perfectly meet these needs. They are automated stacking and reclaiming devices, consisting of an upper stacker and a lower reclaimer. The lower reclaimer generally uses a rake device to assist the screw conveyor in reclaiming materials. The rake device continuously rakes the material to the location of the screw conveyor, which then transports it to its destination. The rake teeth play a crucial role in the rake device, first loosening the material and then guiding it orderly towards the screw conveyor. The uniformity and stability of the rake teeth in existing rake devices during material transport need further improvement, as does their service life. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides a rake tooth for a stacking and reclaiming mechanism, which can achieve the effect of uniform and stable material conveying, and has sufficient strength and wear resistance, long service life and is easy to process.

[0004] The technical solution provided by this invention is as follows:

[0005] A rake tooth for a stacking and reclaiming mechanism, the rake tooth being mounted on a rake device, the rake device comprising an upper structure and a lower structure, including a plurality of rake teeth one, a plurality of rake teeth two, and a plurality of rake teeth three, the rake teeth one, rake teeth two, and rake teeth three having different structures; the rake teeth one being mounted on the upper part of the upper structure and the upper half of the lower structure of the rake device for loosening and conveying upper and middle materials; the rake teeth two being mounted on the middle part and the bottom part of the lower structure of the rake device for loosening and conveying lower materials; and the rake teeth three being mounted on the bottom part of the lower structure of the rake device for loosening and conveying bottom materials.

[0006] Preferably, the rake tooth includes a fixed frame for fixed connection with the frame of the rake device and a wear-resistant body installed directly below the fixed frame.

[0007] Preferably, the wear-resistant body has a cuboid structure.

[0008] Preferably, the fixing frame includes a bent plate for fixing the wear-resistant body and a flat plate for reinforcing the bent plate. There are two bent plates, which are symmetrically arranged on two sides of the wear-resistant body. There are also two flat plates, which are symmetrically arranged between the two bent plates, and the lower edge of the flat plate is at a certain distance from the wear-resistant body.

[0009] Preferably, the distance between the lower edge of the plate and the wear-resistant body is 2-3 cm.

[0010] Preferably, the second rake tooth includes a second fixed frame for fixed connection with the frame of the rake device and a second wear-resistant body installed on the lower side of the second fixed frame.

[0011] Preferably, the second wear-resistant body has a triangular pyramidal structure.

[0012] Preferably, the lower side and bottom surface of the wear-resistant body two are respectively provided with fixing plates.

[0013] Preferably, the rake tooth three includes a fixed frame three for fixed connection with the frame of the rake device and a wear-resistant body three installed below the fixed frame three.

[0014] Preferably, the wear-resistant body three has a cuboid structure, and the included angle formed between the wear-resistant body three and the fixing frame three is an acute angle.

[0015] This application has the following advantages over the prior art:

[0016] 1. The rake teeth of the stacking and reclaiming mechanism of the present invention adopt three different structures: rake tooth one, rake tooth two, and rake tooth three. Rake tooth one, rake tooth two, and rake tooth three are respectively installed at different positions of the material rake device. By rationally distributing the above three types of rake teeth in the upper and lower structures of the material rake device, it can be ensured that rake tooth one in the upper structure can loosen the material located at the top of the material pile and move it evenly and orderly to the bottom of the material pile. Rake tooth two and rake tooth three work together to loosen the material located at the bottom of the material pile and move the material falling from above evenly and orderly to the screw conveyor mechanism. It is not easy to cause blockage or other phenomena that affect the normal operation of the conveying work, and the effect of uniform and stable material conveying can be achieved.

[0017] 2. The structure of the rake teeth one, rake teeth two and rake teeth three of the stacking and reclaiming mechanism of the present invention is reasonably set. Although the specific structures of the three are different, they all adopt a structure combining a fixed frame and a wear-resistant body, which is convenient to process (they can be processed separately and then combined), and has sufficient strength and wear resistance, and a long service life. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the rake tooth in an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the second rake tooth in an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the rake tooth three in an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the rake teeth applied to the material rake device in an embodiment of the present invention.

[0023] Figure label:

[0024] 1. Rake tooth one; 11. Fixing frame one; 111. Bending plate; 112. Flat plate; 12. Wear-resistant body one; 2. Rake tooth two; 21. Fixing frame two; 22. Wear-resistant body two; 23. Fixing plate; 3. Rake tooth three; 31. Fixing frame one; 32. Wear-resistant body three. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] like Figure 1-4As shown, this embodiment of the invention provides a rake tooth for a stacking and reclaiming mechanism. The rake tooth is installed on a rake device, which consists of an upper structure and a lower structure. The rake device includes several rake teeth 1, several rake teeth 2, and several rake teeth 3. The structures of rake teeth 1, 2, and 3 are different. Rake teeth 1 are installed in the upper part of the upper and lower structures of the rake device for loosening and conveying upper and middle materials. Rake teeth 2 are installed in the middle and bottom parts of the lower structure of the rake device for loosening and conveying lower materials. Rake teeth 3 are installed in the bottom part of the lower structure of the rake device for loosening and conveying bottom materials. The alternating arrangement of rake teeth 2 and 3 at the bottom of the lower structure of the rake device effectively conveys bottom materials into the screw conveyor, preventing blockages at the bottom.

[0027] In this embodiment, the rake tooth 1 includes a fixed frame 11 for fixed connection with the frame of the rake device and a wear-resistant body 12 installed directly below the fixed frame 11. The wear-resistant body 12 has a cuboid structure, which not only facilitates the fixing of the bending plates on both sides of the fixed frame 11, but also ensures that the lower surface of the wear-resistant body 12 is flat as it is in direct contact with the material to prevent damage to the material during rakeing and facilitates processing. In addition, the structure of the wear-resistant body 12 reduces resistance during conveying, making material conveying smoother, and since it is in direct contact with the material, it is made of wear-resistant metal material.

[0028] In this embodiment, the fixing frame 11 includes a bent plate 111 for fixing the wear-resistant body 12 and a flat plate 112 for reinforcing the bent plate 111. There are two bent plates 111, symmetrically arranged on two sides of the wear-resistant body 12. There are also two flat plates 112, symmetrically arranged between the two bent plates 111, with a certain distance between the lower edge of the flat plate 112 and the wear-resistant body 12. The distance between the lower edge of the flat plate 112 and the wear-resistant body 12 is 2.5 cm, which facilitates material passage through the gap between the lower edge of the flat plate 112 and the wear-resistant body 12, making material conveying smoother. If the distance between the lower edge of the flat plate 112 and the wear-resistant body 12 is too large, the flat plate will be too small, resulting in insufficient rigidity; if the distance is too small, the material cannot pass through the gap, which is detrimental to material flow. The fixing frame 11 has sufficient contact surface with both the flat plate 112 and the wear-resistant body 12 to meet the rigidity requirements.

[0029] In this embodiment, the rake tooth 2 includes a fixed frame 21 for fixed connection with the frame of the rake device and a wear-resistant body 22 installed on the lower side of the fixed frame 21. The fixed frame 21 and the wear-resistant body 22 are fixed by welding. The wear-resistant body 22 has a triangular pyramid structure. The rake teeth mainly act on the surface of the material. Because the material is in a natural accumulation state, the force exerted by the rake teeth on it causes the material to be transported from top to bottom. The force between the rake teeth and the material increases as it goes down. The triangular pyramid structure of the wear-resistant body 22 increases the contact area with the material. This cone-shaped structure also helps the rake teeth to disperse the material during movement. This triangular pyramid structure of the wear-resistant body 22 is used for the bottom material. Since the material itself is transported from top to bottom, the bottom material will accumulate more. The triangular pyramid shape can disperse the material transported from top to bottom and the material in the direction of movement of the rake device itself. The lower side and bottom surface of the wear-resistant body 22 are also equipped with fixing plates 23. The fixing plates 23 mainly serve a connecting function and are made of general metal materials. They also have a certain function of dispersing materials. The bottom surface of the wear-resistant body 22 is the surface that directly contacts the material. The material is wear-resistant metal. The specific connection structure between the wear-resistant body 22 and the fixing plates 23 is as follows: a triangular plate made of general metal material is vertically fixed to the triangular plate of the bottom wear-resistant metal material. Two triangular plates made of general metal material are fixed on the side, so that the wear-resistant body 22 forms a triangular pyramid structure. Then, a small flat plate is fixed between the general metal plate on the side and the wear-resistant metal plate on the bottom. This small flat plate also serves a connecting function.

[0030] In this embodiment, the rake tooth 3 includes a fixed frame 31 for fixed connection with the frame of the rake device and a wear-resistant body 32 installed below the fixed frame 31. The wear-resistant body 31 has a cuboid structure, and the function of the cuboid structure here is basically the same as that of the cuboid structure of the wear-resistant body 12. The difference is that the cross-section of the cuboid here is larger, and the included angle formed between the wear-resistant body 31 and the fixed frame 32 is an acute angle. This structure is conducive to the uniform and continuous conveying of the bottom material.

[0031] In this embodiment, the first fixing frame 11, the second fixing frame 21 and the third fixing frame 31 are all general metal structures, and the first wear-resistant body 12, the second wear-resistant body 22 and the third wear-resistant body 32 are all made of wear-resistant metal materials, such as NM400. This wear-resistant material itself requires high yield strength and surface hardness, and it must be easy to process and weld, and have good wear resistance.

[0032] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rake tooth for a stacking and reclaiming mechanism, the rake tooth being mounted on a rake device, the rake device comprising an upper structure and a lower structure, characterized in that, It includes several rake teeth one (1), several rake teeth two (2) and several rake teeth three (3). The rake teeth one (1), rake teeth two (2) and rake teeth three (3) have different structures. The rake teeth one (1) are installed on the upper part of the upper structure and the upper half of the lower structure of the material rake device for rake loosening and conveying the upper and middle materials. The rake teeth two (2) are installed on the middle part and the bottom part of the lower structure of the material rake device for rake loosening and conveying the lower materials. The rake teeth three (3) are installed on the bottom part of the lower structure of the material rake device for rake loosening and conveying the bottom materials. The rake tooth (1) includes a fixed frame (11) for fixed connection with the frame of the rake device and a wear-resistant body (12) installed directly below the fixed frame (11). The wear-resistant body (12) has a cuboid structure. The rake tooth 2 (2) includes a fixed frame 2 (21) for fixed connection with the frame of the rake device and a wear-resistant body 2 (22) installed on the lower side of the fixed frame 2 (21). The wear-resistant body 2 (22) is a triangular pyramid structure. The rake tooth three (3) includes a fixed frame three (31) for fixed connection with the frame of the rake device and a wear-resistant body three (32) installed below the fixed frame three (31). The wear-resistant body three (32) is a cuboid structure and the included angle between the wear-resistant body three (32) and the fixed frame three (31) is an acute angle.

2. The rake teeth for a stacking and reclaiming mechanism according to claim 1, characterized in that, The fixing frame 1 (11) includes a bent plate (111) for fixing the wear-resistant body 1 (12) and a flat plate (112) for reinforcing the bent plate (111). There are two bent plates (111) symmetrically arranged on two sides of the wear-resistant body 1 (12). There are two flat plates (112) symmetrically arranged between the two bent plates (111), and there is a certain distance between the lower edge of the flat plate (112) and the wear-resistant body 1 (12).

3. The rake teeth for a stacking and reclaiming mechanism according to claim 2, characterized in that, The distance between the lower edge of the plate (112) and the wear-resistant body (12) is 2-3 cm.

4. The rake teeth for a stacking and reclaiming mechanism according to claim 1, characterized in that, The wear-resistant body 2 (22) is also provided with fixing plates (23) on its lower side and bottom surface.

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