Scraper chain capable of preventing material accumulation and embedded scraper conveyor with scraper chain

Abstract

The utility model relates to an anti-material-accumulation scraper chain and an embedded scraper conveyer with the same, the anti-material-accumulation scraper chain comprises a plurality of chain link units, the plurality of chain link units are hinged end to end to form a closed ring-shaped chain body, support plates are arranged on two sides of the chain body at intervals, and the support plates are connected with the chain body. The chain link unit is provided with two chain link plates, the two chain link plates are of the same structure and are symmetrically arranged, the chain link plates are provided with front hinge holes and rear hinge holes, and hinge pin shafts penetrate through the front hinge holes and the rear hinge holes. The two chain link units hinged end to end are connected in a hinged mode through a hinged shaft installed in the rear hinged hole of the chain link plate of the front chain link unit and the front hinged hole of the chain link plate of the rear chain link unit in a penetrating mode, the top faces of the chain link plates are slopes, and the top faces of the supporting plates are slopes. Materials falling on the chain link plate and the top face of the supporting plate slide down along the slope face in the material conveying process of the embedded scraper transporter, material remaining can be effectively avoided, and accumulated materials at the machine head end of the embedded scraper transporter are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of material conveying equipment, and particularly relates to a scraping chain for preventing material accumulation and an enclosed scraper conveyor with the scraping chain. Background Technique

[0002] An enclosed scraper conveyor is a widely used bulk material conveying equipment, which is a transportation equipment that makes bulk materials be conveyed to a predetermined target by means of a scraping chain moving in a closed housing. The enclosed scraper conveyor has the advantages of small volume, strong sealing performance, good rigidity, flexible process layout, convenient installation and maintenance, and can be fed and discharged at multiple points. It is widely used in industries and departments such as metallurgy, building materials, electric power, chemical industry, cement, ports, docks, coal, mines, grain and oil, food, feed, etc.

[0003] The scraping chain is an important part of the enclosed scraper conveyor. The scraping chain usually consists of several chain link units hinged end to end, a closed chain formed by hinging several link units end to end, support plates arranged at intervals on both sides of the chain, and wear-resistant scrapers fixedly connected to the support plates. In order to avoid the friction between the support plates and the housing or support frame of the enclosed scraper conveyor, the width of the wear-resistant scraper is usually greater than the width of the support plate, so that the support plate does not contact the housing or support frame. In this kind of scraping chain structure, the top surfaces of the link plates of the link unit and the support plates are narrow planes. During use, materials often remain on the top surfaces of the link plates and the support plates. The remaining materials move with the scraping chain and will be retained in the head end housing of the enclosed scraper conveyor, forming material accumulation in the head end housing. The accumulated materials will increase the running friction of the enclosed scraper conveyor, increase energy consumption, increase the risk of chain breakage, reduce the service life of the enclosed scraper conveyor. Moreover, when the enclosed scraper conveyor is used to convey grains, foods or feeds, the food materials such as grains are retained in the head end housing for a long time, which is easy to rot and deteriorate, affecting the quality of the materials. Summary of the Utility Model

[0004] In summary, in order to overcome the deficiencies of the prior art problems, the utility model provides a scraping chain for preventing material accumulation. The top surfaces of the link plates and the support plates of the scraping chain are both inclined planes, and the materials falling on the top surfaces of the link plates and the support plates slide along the inclined planes, which can effectively avoid material retention, thereby reducing the material accumulation at the head end of the enclosed scraper conveyor. The utility model also provides an enclosed scraper conveyor with the scraping chain.

[0005] In order to solve the above technical problems, the technical solution of the scraping chain for preventing material accumulation provided by the utility model is realized as follows:

[0006] A scraping chain for preventing material accumulation, comprising a plurality of link units. The plurality of link units are hinged end to end to form a closed-loop chain body. Support plates are arranged at intervals on both sides of the chain body, and wear-resistant scraping plates are fixedly connected to the support plates. Among them: Each link unit has two link plates, and the two link plates have the same structure and are symmetrically arranged. The link plates are provided with a front hinge hole and a rear hinge hole for passing through a hinge pin. Two adjacent link units are hinged through a hinge shaft passing through the rear hinge hole of the link plate of the previous link unit and the front hinge hole of the link plate of the next link unit. The top surface of the link plate is an inclined plane, and the top surface of the support plate is an inclined plane.

[0007] Furthermore, the support plate has a first plane and a second plane arranged relatively parallel to each other. The first plane is used to fit with the surface of the wear-resistant scraping plate. The top surface of the support plate gradually slopes downward from the first plane to the second plane, and the included angle between the top surface of the support plate and the first plane is 35° - 65°.

[0008] Furthermore, the link plate has an outer side surface and an inner side surface arranged relatively parallel to each other. The top surface of the front part of the link plate gradually slopes downward from the outer side surface to the inner side surface, and the included angle between it and the outer side surface is 35° - 65°. The top surface of the rear part of the link plate gradually slopes downward from the inner side surface to the outer side surface, and the included angle between it and the inner side surface is 35° - 65°.

[0009] Furthermore, the link unit also has a sleeve. The sleeve is arranged between the two link plates of the link unit and is located at the front hinge hole of the link plate. The hinge shaft passes through the sleeve.

[0010] Furthermore, both ends of the sleeve are fixedly welded to the two link plates respectively.

[0011] Furthermore, the link plate is one of a bent plate and a straight plate.

[0012] The technical solution of the drag conveyor with the above scraping chain provided by the present utility model is realized as follows:

[0013] An enclosed scraper conveyor, comprising an enclosed housing, a feed inlet, a discharge outlet, a power and transmission device, a driving sprocket, a driven sprocket and a scraper chain. The upper end of the enclosed housing is provided with a feed inlet communicating with its inner cavity, and the lower end of the enclosed housing is provided with a discharge outlet communicating with its inner cavity. One end inside the enclosed housing is provided with a driving sprocket capable of rotating relative to the enclosed housing, and the other end inside the enclosed housing is provided with a driven sprocket capable of rotating relative to the enclosed housing. The driving sprocket and the driven sprocket are connected by a scraper chain. A power and transmission device is provided outside the enclosed housing and is connected to the driving sprocket to provide power for the rotation of the driving sprocket. Among them: the scraper chain is the above-mentioned anti-accumulation scraper chain.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. The top surfaces of the link plates and the support plates of the scraper chain of the present invention are both inclined planes. The materials falling on the top surfaces of the link plates and the support plates slide along the inclined planes, which can effectively avoid the retention of materials, thereby reducing the accumulation of materials at the head end of the enclosed scraper conveyor, effectively reducing the running friction of the scraper chain, reducing power consumption, reducing the risk of chain breakage of the scraper chain, and ensuring the service life of the enclosed scraper conveyor.

[0016] 2. The two ends of the sleeve of the link unit of the present invention are respectively welded and fixed to two link plates. This connection method can effectively improve the tensile strength of the scraper chain, thereby improving the service life of the scraper chain, reducing the risk of chain breakage, and reducing the maintenance cost of the enclosed scraper conveyor.

[0017] 3. The structure of the present invention is simple, easy to use, and low in cost. By changing the top surfaces of the link plates and the support plates from flat surfaces to inclined planes, the accumulation of materials on the top surfaces of the link plates and the support plates can be effectively avoided, and the concept is novel and ingenious. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of the anti-accumulation scraper chain of the present invention;

[0019] Figure 2 is the present invention Figure 1 left view structural diagram;

[0020] Figure 3 is the present invention Figure 1 A-A sectional structural diagram;

[0021] Figure 4 is a schematic structural diagram of the link unit of the present invention;

[0022] Figure 5 is the present invention Figure 4 B-B sectional structural diagram;

[0023] Figure 6 For the present utility model Figure 4 Schematic diagram of the C-C sectional structure;

[0024] Figure 7 Schematic diagram of the structure of the drag conveyor of the present utility model. Specific embodiments

[0025] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 shown, a scraper chain for preventing material accumulation includes a plurality of link units. The plurality of link units are hinged end to end to form a closed-loop chain body. Support plates 2 are arranged at intervals on both sides of the chain body. Wear-resistant scrapers 3 are fixedly connected to the support plates 2. Each link unit has two link plates 1 and a sleeve 4. The link plates 1 are bent plates. The two link plates 1 have the same structure and are symmetrically arranged. The link plates 1 have a front hinge hole and a rear hinge hole for passing through a hinge pin. The sleeve 4 is arranged between the two link plates 1 of the link unit and is located at the front hinge hole of the link plate 1. Both ends of the sleeve 4 are fixedly welded to the two link plates 1. Two adjacent link units are hinged by a hinge shaft passing through the rear hinge hole of the link plate 1 of the previous link unit and the front hinge hole of the link plate 1 of the next link unit. The link plate 1 has a top surface, outer side surfaces 12 and inner side surfaces 11 arranged relatively parallel. The top surface is an inclined surface. The front top surface 13 of the link plate 1 gradually inclines downward along the direction from the outer side surface 12 to the inner side surface 11, and the included angle between it and the outer side surface 12 is 35° - 65°. The rear top surface 14 of the link plate 1 gradually inclines downward along the direction from the inner side surface 11 to the outer side surface 12, and the included angle between it and the inner side surface 11 is 35° - 65°. The support plate 2 has a top surface, a first plane 21 and a second plane 22 arranged relatively parallel. The first plane 21 is used for surface contact with the wear-resistant scraper 3. The top surface 23 of the support plate 2 is an inclined surface. The top surface 23 of the support plate 2 gradually inclines downward along the direction from the first plane 21 to the second plane 22, and the included angle between the top surface and the first plane 21 is 35° - 65°.

[0027] As shown in Figure 7As shown in the figure, a scraper conveyor includes a closed housing 5, a feed inlet 6, a discharge outlet 7, a power and transmission device, a driving sprocket 8, a driven sprocket 9, and a scraper chain. The upper end of the closed housing 5 is provided with a feed inlet 6 communicating with its inner cavity, and the lower end of the closed housing 5 is provided with a discharge outlet 7 communicating with its inner cavity. One end inside the closed housing 5 is provided with a driving sprocket 8 capable of rotating relative to the closed housing 5, and the other end inside the closed housing 5 is provided with a driven sprocket 9 capable of rotating relative to the closed housing 5. The driving sprocket 8 and the driven sprocket 9 are connected by a scraper chain. A power and transmission device is provided outside the closed housing 5 and is connected to the driving sprocket 8 to provide power for the rotation of the driving sprocket 8. The scraper chain is the above-mentioned anti-accumulation scraper chain.

[0028] Taking the transportation of grain materials by the scraper conveyor as an example, during use, the power and transmission device is started. The power and transmission device drives the driving sprocket 8 to rotate. The driving sprocket 8 drives the driven sprocket 9 to rotate through the scraper chain. The grain materials to be transported enter the closed housing 5 from the feed inlet 6 and fall onto the bottom plate of the closed housing 5. When the wear-resistant scraper 3 moves along with the scraper chain, the wear-resistant scraper 3 pushes the grain materials on the bottom plate of the closed housing 5 to move from the feed inlet 6 to the discharge outlet 7, realizing the transportation of the grain materials. During the process of feeding the grain materials from the feed inlet 6 and during the transportation of the grain materials, the grain particles on the top surfaces of the link plates 1 and the support plates 2 can directly slide down along the slope surface, and the grain particles will not remain, thus effectively avoiding material accumulation.

[0029] It should be noted that the above embodiments are illustrative rather than restrictive of the technical solutions of the present invention. Equivalent substitutions by those of ordinary skill in the art or other modifications made according to the prior art, as long as they do not exceed the ideas and scopes of the technical solutions of the present invention, shall be included within the scope of the rights required by the present invention.

Claims

1. A scraping chain for preventing material accumulation, comprising a plurality of link units, and the plurality of link units are hinged end to end to form a closed-loop chain body. Support plates (2) are arranged at intervals on both sides of the chain body, and wear-resistant scraping plates (3) are fixedly connected to the support plates (2). It is characterized in that: The described link unit has two link plates (1). The two link plates (1) have the same structure and are symmetrically arranged. The link plates (1) are provided with a front hinge hole and a rear hinge hole for mounting a hinge pin. Two link units hinged head to tail are hingedly connected by a hinge shaft mounted in the rear hinge hole of the link plate (1) of the previous link unit and the front hinge hole of the link plate (1) of the next link unit. The top surface of the link plate (1) is a slope surface, and the top surface (23) of the support plate (2) is a slope surface.

2. The anti-accumulation scraper chain according to claim 1, characterized in that: The described link plate (1) has an outer side surface (12) and an inner side surface (11) arranged relatively parallel. The front top surface (13) of the link plate (1) gradually slopes downward along the direction from the outer side surface (12) to the inner side surface (11), and the included angle between it and the outer side surface (12) is 35° - 65°. The rear top surface (14) of the link plate (1) gradually slopes downward along the direction from the inner side surface (11) to the outer side surface (12), and the included angle between it and the inner side surface (11) is 35° - 65°.

3. The scraping chain for preventing material accumulation according to claim 2, wherein: The described link plate (1) is one of a bent plate and a straight plate.

4. The anti-accumulation scraper chain according to claim 1, wherein: The described support plate (2) has a first plane (21) and a second plane (22) arranged relatively parallel. The first plane (21) is used for surface fitting with the wear-resistant scraper (3). The top surface (23) of the support plate (2) gradually slopes downward along the direction from the first plane (21) to the second plane (22), and the included angle between the top surface (23) of the support plate (2) and the first plane (21) is 35° - 65°.

5. The anti-accumulation scraper chain according to any one of claims 1 to 4, characterized in that: The described link unit further has a sleeve (4). The sleeve (4) is arranged between the two link plates (1) of the link unit and is located at the front hinge hole of the link plate (1). The hinge shaft passes through the sleeve (4).

6. The anti-accumulation scraper chain according to claim 5, characterized in that: Both ends of the described sleeve (4) are fixedly welded to the two link plates (1).

7. An enclosed scraper conveyor, comprising a closed housing (5), a feed inlet (6), a discharge outlet (7), a power and transmission device, a driving sprocket (8), a driven sprocket (9) and a scraper chain. The upper end of the closed housing (5) is provided with a feed inlet (6) communicating with its inner cavity, and the lower end of the closed housing (5) is provided with a discharge outlet (7) communicating with its inner cavity. One end inside the closed housing (5) is provided with a driving sprocket (8) capable of rotating relative to the closed housing (5), and the other end inside the closed housing (5) is provided with a driven sprocket (9) capable of rotating relative to the closed housing (5). The driving sprocket (8) and the driven sprocket (9) are connected by a scraper chain. A power and transmission device is provided outside the closed housing (5), and the power and transmission device is connected to the driving sprocket (8) to provide power for the rotation of the driving sprocket (8). It is characterized in that: The described scraper chain is the anti - material - accumulation scraper chain according to any one of claims 1 - 6.

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