Improved large-aperture bucket-wheel grille special for material taking machine

Abstract

The utility model provides an improved large-aperture bucket-wheel grating special for a material taking machine, which relates to the technical field of material taking machines, comprises a basic grating provided with a plurality of first high-strength bolts used for being connected with a grating platform in a bucket-wheel trough, and is characterized in that a large-aperture grating is welded at one end of the basic grating, and a plurality of second high-strength bolts are welded at the other end of the basic grating. The basic grating comprises a plurality of first longitudinal beams, the large-aperture grating comprises a plurality of second longitudinal beams, and the distance between every two adjacent second longitudinal beams is twice that between every two adjacent first longitudinal beams; according to the device, the screening areas with two pore diameters are arranged on the bucket wheel grating, so that the problem that the grating is blocked by impurities to influence normal passing of materials can be avoided while the original connection stability with the bucket wheel trough is ensured, namely, the filtering requirements on different materials are met; and meanwhile, the large-aperture area of the main screening material is subjected to surfacing to improve the wear resistance of the large-aperture area, so that the frequency of follow-up repair welding or replacement of the bucket-wheel grating is reduced, the maintenance cost is reduced, and the comprehensive use effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of reclaimers, in particular to an improved large-aperture bucket wheel grille specially used for reclaimers. Background Art

[0002] A reclaimer is a large-scale piece of machinery widely used in bulk cargo handling operations at ports. A reclaimer grid generally refers to a material screening and separation device used within the bucket wheel trough of a bucket wheel reclaimer. It typically consists of fixed metal beams and metal plates, with uniformly spaced, standardized mesh sizes. It is used to screen and separate impurities, frozen blocks, and iron objects from the material being reclaimed by the bucket wheel, ensuring safety of downstream conveyors and ensuring the quality of the cargo.

[0003] After long-term use, it was found that the original reclaimer grille had the following defects:

[0004] 1. The grille is easily worn by the impact of materials, which requires frequent replacement or welding, increasing maintenance costs and providing poor performance.

[0005] 2. The original grid structure design is not flexible enough to adapt to the filtering needs of different materials, and the leakage effect of a single aperture is poor and prone to clogging. Utility Model Content

[0006] The purpose of the utility model is to solve the problems raised in the above background technology, and then proposes an improved large-aperture bucket wheel grille specially used for a reclaimer.

[0007] The technical solution adopted by the utility model to solve its technical problems is:

[0008] An improved large-aperture bucket wheel grille specially designed for a reclaimer includes a basic grille, on which are provided a plurality of first high-strength bolts for connecting to a grille platform in a bucket wheel trough. The invention is characterized in that a large-aperture grille is welded to one end of the basic grille, the basic grille includes a plurality of first longitudinal beams, the large-aperture grille includes a plurality of second longitudinal beams, the spacing between two adjacent second longitudinal beams is twice the spacing between two adjacent first longitudinal beams, and a wear-resistant layer is provided on the large-aperture grille.

[0009] This device sets two screening areas with different apertures on the bucket wheel grille, which ensures the stability of the original connection with the bucket wheel trough while avoiding the problem of the grille being blocked by impurities and thus affecting the normal passage of materials, that is, it meets the filtering needs of different materials. At the same time, the large-aperture area of ​​the main screening material is welded to improve its wear resistance, thereby reducing the frequency of subsequent repair welding or replacement of the bucket wheel grille, reducing maintenance costs, and achieving better comprehensive use effects.

[0010] Furthermore, the basic grid and the large-aperture grid are connected by a plurality of second high-strength bolts.

[0011] The above solution uses a plurality of second high-strength bolts to connect the basic grid and the large-aperture grid, which can effectively reduce the probability of bending during the material screening process compared to welding. The second high-strength bolts play a supporting role.

[0012] Furthermore, the large-aperture grille is made of 20# steel plate and the wear-resistant layer is processed by three-sided surfacing welding.

[0013] Furthermore, the thickness of the wear-resistant surfacing layer on the top of the large-aperture grid is 5-6 mm, and the thickness of the wear-resistant surfacing layer on both sides of the large-aperture grid is 4.5-5 mm.

[0014] Furthermore, the large-aperture grille and the basic grille are both made of stainless steel.

[0015] The above solution is made of stainless steel to prevent the problem of surface rust caused by corrosion by materials.

[0016] Furthermore, the first high-strength bolt and the second high-strength bolt are processed by a hot-dip aluminum coating process.

[0017] The above solution uses a hot-dip aluminum plating process to improve the corrosion resistance of the high-strength bolts.

[0018] Furthermore, a plurality of reinforcing ribs are equidistantly arranged below the connection between the basic grille and the large-aperture grille.

[0019] The above solution adds a reinforcing rib plate on the basis of the second high-strength bolt, which can further improve the bending resistance of the connection between the two without affecting the screening of materials, and has a better effect.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] Compared with the existing technology, this device sets two screening areas with different apertures on the bucket wheel grille. In this way, while ensuring the stability of the original connection with the bucket wheel trough, it can avoid the problem of the grille being blocked by impurities and thus affecting the normal passage of materials, that is, it meets the filtering needs of different materials. At the same time, the large-aperture area of ​​the main screening material is welded to improve its wear resistance, thereby reducing the frequency of subsequent repair welding or replacement of the bucket wheel grille, reducing maintenance costs, and achieving better comprehensive use effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Reference numerals:

[0024] 1. Basic grille; 11. First high-strength bolt; 12. First longitudinal beam; 2. Large-aperture grille; 21. Second longitudinal beam; 3. Second high-strength bolt. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. The present invention is further described in conjunction with the drawings and embodiments:

[0026] like Figure 1 As shown, an improved large-aperture bucket wheel grille specially designed for a reclaimer includes a basic grille 1. The basic grille 1 is provided with a plurality of first high-strength bolts 11 for connecting to the grille platform in the bucket wheel trough. The bucket wheel trough is not shown in the figure and belongs to the prior art and is not improved. A large-aperture grille 2 is welded to one end of the basic grille 1. The basic grille 1 includes a plurality of first longitudinal beams 12. The large-aperture grille 2 includes a plurality of second longitudinal beams 21. The spacing between two adjacent second longitudinal beams 21 is twice the spacing between two adjacent first longitudinal beams 12. The large-aperture grille 2 is provided with a wear-resistant layer.

[0027] In a further refinement of the embodiment of the present invention, the large-aperture grille 2 is made of 20# steel plate and the wear-resistant layer is processed by three-sided surfacing welding. Specifically, the thickness of the top surfacing wear-resistant layer of the large-aperture grille 2 is 5-6 mm, and the thickness of the surfacing wear-resistant layer on both sides of the large-aperture grille 2 is 4.5-5 mm.

[0028] In a further refinement of the embodiment of the present invention, the large-aperture grille 2 and the basic grille 1 are both made of stainless steel to prevent corrosion by materials and thus surface rust.

[0029] In a further refinement of the embodiment of the present invention, the first high-strength bolt 11 and the second high-strength bolt 3 are processed by hot-dip aluminum plating to improve their corrosion resistance.

[0030] The workflow of this utility model:

[0031] The overall length and width of the grille designed in this device are the same as those of the original single-aperture grille. The rear base grille 1 connected to the grille platform in the bucket wheel trough is not changed, but its length is shortened to ensure the strength and stability of the overall grille, and the grille aperture in the area mainly in contact with the material is increased (i.e., the large-aperture grille 2 is welded on the front of the base grille 1). At the same time, the wear resistance of the large-aperture grille 2 is enhanced by three-sided surfacing welding, thereby meeting the filtering needs of different materials while reducing subsequent maintenance costs. The large-aperture grille 2 does not require frequent repair welding or replacement and is not easy to The probability of the material being blocked during the screening process and thus unable to pass is greatly reduced, that is, the same screen includes two screening areas with different apertures. If the flow rate of the material into the bucket wheel trough is small, it will be screened through the large-aperture screen 2 and will not be easily blocked. Then, impurities, frozen blocks, ironware and other impurities in the material can be retained on the large-aperture screen 2. If the flow rate of the material into the bucket wheel trough is large, most of the material will be screened and flow through the large-aperture screen 2, and a small part of the material will be screened and flow through the basic screen 1. At this time, the use effect of the screen is better, and the impurities on the screen can be cleaned centrally later.

[0032] Compared with the existing technology, this device sets two screening areas with different apertures on the bucket wheel grille. In this way, while ensuring the stability of the original connection with the bucket wheel trough, it can also avoid the problem of the grille being blocked by impurities and affecting the normal passage of materials, that is, it meets the filtering needs of different materials. At the same time, the large-aperture area of ​​the main screening material is welded to improve its wear resistance, thereby reducing the frequency of subsequent repair welding or replacement of the bucket wheel grille, reducing maintenance costs, and achieving better comprehensive use effects.

[0033] In some embodiments, as Figure 1 As shown, the basic grille 1 and the large-aperture grille 2 are connected by a plurality of second high-strength bolts 3. Compared with welding, this embodiment uses a plurality of second high-strength bolts 3 to connect the basic grille 1 and the large-aperture grille 2, which can effectively reduce the probability of bending during the material screening process. The second high-strength bolts 3 play a supporting role.

[0034] In a further optimization of the above embodiment, a number of reinforcing ribs are equidistantly arranged below the connection between the basic grille 1 and the large-aperture grille 2, which are not shown in the figure. In this embodiment, reinforcing ribs are added on the basis of the second high-strength bolts 3 to further improve the bending resistance of the connection between the two without affecting the screening of materials, resulting in a better effect.

[0035] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An improved large-aperture bucket wheel grille for a reclaimer, comprising a base grille (1), the base grille (1) being provided with a plurality of first high-strength bolts (11) for connecting to a grille platform in a bucket wheel trough, characterized in that: A large-aperture grille (2) is welded to one end of a basic grille (1); the basic grille (1) comprises a plurality of first longitudinal beams (12); the large-aperture grille (2) comprises a plurality of second longitudinal beams (21); the spacing between two adjacent second longitudinal beams (21) is twice the spacing between two adjacent first longitudinal beams (12); and a wear-resistant layer is provided on the large-aperture grille (2).

2. The improved large-aperture bucket wheel grid for reclaimers according to claim 1 is characterized in that: The basic grid (1) and the large-aperture grid (2) are connected via a plurality of second high-strength bolts (3).

3. The improved large-aperture bucket wheel grid for reclaimers according to claim 1, characterized in that: The large-aperture grille (2) is made of 20# steel plate and the wear-resistant layer is processed by three-sided surfacing welding.

4. The improved large-aperture bucket wheel grid for reclaimers according to claim 3 is characterized in that: The thickness of the surfacing wear-resistant layer on the top of the large-aperture grid (2) is 5-6 mm, and the thickness of the surfacing wear-resistant layer on both sides of the large-aperture grid (2) is 4.5-5 mm.

5. The improved large-aperture bucket wheel grid for reclaimers according to claim 1, characterized in that: The large-aperture grid (2) and the basic grid (1) are both made of stainless steel.

6. The improved large-aperture bucket wheel grid for reclaimers according to claim 2, characterized in that: The first high-strength bolt (11) and the second high-strength bolt (3) are both processed by a hot-dip aluminum plating process.

7. The improved large-aperture bucket wheel grid for reclaimers according to claim 1, characterized in that: A plurality of reinforcing ribs are equidistantly arranged below the connection between the basic grid (1) and the large-aperture grid (2).

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