Detachable wear-resistant scraper chain

Abstract

The utility model relates to the technical field of embedded scraper conveyor equipment, in particular to a detachable wear-resistant scraper chain. A detachable wear-resistant scraper chain comprises a plurality of chain links which are hinged in sequence, the moving direction of the chain links serves as the front-back direction, two scrapers are arranged on the left side and the right side of each chain link, a reinforcing rib plate is arranged on the rear side of each scraper, and each scraper is detachably installed on the corresponding chain link through a bolt and nut assembly. The reinforcing rib plates are arranged on the rear side of each scraper, so that the strength of the scrapers can be improved, and the scrapers are prevented from deforming. Each scraper plate is detachably installed on the chain link through the bolt and nut assembly, only the scraper plates on the two sides need to be replaced when the scraper plates are replaced, the maintenance cost can be greatly reduced, and the labor intensity is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of buried scraper conveyor equipment, in particular to a detachable wear-resistant scraper chain. Background Art

[0002] The buried scraper conveyor is a mechanical equipment used to transport bulk materials. The buried scraper conveyor is widely used in metallurgy, building materials, electricity, chemicals, cement, ports, docks, coal, mining, grain and oil, food, feed and other industries and departments. The buried scraper conveyor is mainly composed of a closed cross-section shell (machine trough), a scraper chain, a drive device, a tensioning device and a safety protection device. The working principle of the buried scraper conveyor is to use the scraper chain moving in the closed shell or machine trough to transport bulk materials to a predetermined target. It is characterized by simple structure, small size, good sealing performance, and convenient installation and repair. When conveying bulk materials, it can improve working conditions and reduce environmental pollution. It has become a widely used bulk material conveying equipment.

[0003] The scraper chain is composed of multiple links connected by pins, and each link is equipped with a scraper. During the material conveying process, the pressure in the direction of the scraper chain movement and the pushing force of the lower material on the upper material during continuous feeding make the material form a continuous material flow and move forward during horizontal conveying. Sometimes in rainy weather, the bulk material inside is compacted, so the plates on both sides of the scraper are very likely to deform during operation. For example, Figure 1 As shown in the figure, the scrapers on the left and right sides are bent backwards along the direction of movement of the scraper chain. Apart from this, the other parts are still in good condition. The chain plate designed for use for more than two years deformed in less than a year, which greatly reduced the service life of the scraper, caused waste, and increased the replacement cost.

[0004] The invention patent application with application publication number CN105035646A provides a scraper assembly chain for an embedded scraper conveyor, which mainly includes scraper chains connected end to end and a connecting mechanism between two adjacent scraper chains; the scraper chain includes a chain tail with a single-hole groove, and the left end of the chain tail is provided with a chain head with a double-hole groove adapted to the chain tail, and a scraper extending to the front and rear ends is provided at the connection between the chain tail and the chain head, and a reinforcing rib is welded to the left end of the scraper. Because in the above patent application, the reinforcing rib is welded to the scraper, and the scraper is usually welded to the chain link. When replacing the scraper, the entire chain link needs to be disassembled, and the embedded scraper conveyor needs to stop running for a long time, and it is cumbersome to replace a new scraper. Moreover, the scraper equipped with reinforcing ribs cannot be assembled in the existing embedded scraper conveyor, and can only be replaced with a new scraper assembly chain, and the maintenance cost is relatively high. Utility Model Content

[0005] In view of this, the present utility model provides a detachable wear-resistant scraper chain, which can at least solve the technical problem that the replacement of the scraper of the existing scraper assembly chain is relatively cumbersome.

[0006] A detachable wear-resistant scraper chain provided by the present utility model includes a plurality of chain links hinged in sequence. Taking the moving direction of the chain links as the front-back direction, two scrapers are provided on the left and right sides of each chain link. A reinforcing rib plate is provided at the rear side of each scraper, and each scraper is detachably mounted on the chain link through a bolt-nut assembly.

[0007] In some embodiments, each chain link includes an integrally formed chain head, a chain tail, and a connecting plate connecting the chain head and the chain tail. Among two adjacent chain links, the chain tail of one chain link is connected to the chain head of the other chain link through a connecting component, and each scraper is detachably mounted on the connecting plate through a bolt-nut assembly.

[0008] In some embodiments, the scraper extends in the left-right direction. The connecting plate is provided with a first mounting hole penetrating through its left and right sides. One end of the scraper is further provided with a mounting plate perpendicular to it, and the mounting plate is provided with a second mounting hole corresponding to the first mounting hole. The bolt-nut assembly passes through the first mounting hole and the second mounting hole to mount the scraper on the connecting plate.

[0009] In some embodiments, the two scrapers mounted on the same connecting plate are oppositely arranged on the left and right sides of the connecting plate. At least two first mounting holes are provided along the length direction of each connecting plate, and at least two second mounting holes are provided along the length direction of each mounting plate. The two bolt-nut assemblies are shared by the two scrapers oppositely arranged on the left and right.

[0010] In some embodiments, each reinforcing rib plate extends from the end of the scraper close to the connecting plate to the other end of the scraper, and the bottom of the reinforcing rib plate is higher than the bottom of the scraper.

[0011] In some embodiments, the mounting position of the reinforcing rib plate is at the middle in the vertical direction of the scraper.

[0012] In some embodiments, the overall thickness of the reinforcing rib plate accounts for at least one-half of the thickness of the scraper.

[0013] In some embodiments, the cross section of the reinforcing rib plate is square.

[0014] In some embodiments, the cross section of the reinforcing rib plate is V-shaped, and the tip of the V shape faces backward.

[0015] In some embodiments, the chain head includes two clamping plates connected to one end of the connecting plate and having an opening groove formed in the middle thereof. Each clamping plate is provided with a first hole groove. The chain tail is connected to the other end of the connecting plate. The chain tail is provided with a second hole groove and is configured to be inserted into the corresponding opening groove so that the first hole groove is aligned with the second hole groove. The connecting component includes a pin shaft and a pin for passing through the first hole groove and the second hole groove to connect the chain tail to the chain head.

[0016] The beneficial effects of the present utility model are as follows: By providing a reinforcing rib plate at the rear side of each scraper, the strength of the scraper can be increased, and the deformation of the scraper can be avoided. Each scraper is detachably mounted on the chain link through a bolt-nut assembly. When replacing the scraper, only the scrapers on both sides need to be replaced, which can greatly reduce the maintenance cost, reduce the labor intensity, and is easy to replace, bringing huge economic benefits to the enterprise. This scraper can be applied to new equipment or old equipment that has been used for many years, and can effectively solve problems such as easy deformation, fracture, and difficult replacement of the scraper. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other embodiments can also be obtained based on these drawings.

[0018] Figure 1 Schematic diagram of a chain link with a deformed scraper in the prior art;

[0019] Figure 2 Cross-sectional view of a chain link of the detachable wear-resistant scraper chain proposed by the present utility model;

[0020] Figure 3 Side view of a chain link of the detachable wear-resistant scraper chain proposed by the present utility model.

[0021] Explanation of the reference numerals in the drawings:

[0022] 1. Scraper; 2. Chain head; 3. Chain tail; 4. Reinforcing rib plate; 5. Bolt-nut assembly; 6. Pin shaft; 7. Clamping plate; 8. First hole groove; 9. Second hole groove; 10. Connecting plate; 11. Mounting plate. Detailed Embodiments

[0023] To make the objectives, technical solutions, and advantages of the present utility model clearer, the following will further describe the embodiments of the present utility model in detail with reference to specific embodiments and the accompanying drawings.

[0024] It should be noted that all the expressions using "first" and "second" in the embodiments of the present utility model are used to distinguish two entities or parameters with the same name but different, so it can be seen that "first" and "second" are only for the convenience of expression and should not be construed as a limitation on the embodiments of the present utility model. This will not be elaborated one by one in the subsequent embodiments.

[0025] A detachable wear-resistant scraper chain proposed by the present utility model is applied to a drag conveyor, especially the drag conveyor in a bag filter, and is mainly used for horizontally conveying granular and powdery materials, and can also be inclinedly conveyed within an angle range of 150°. As Figure 2 and Figure 3 shown, the detachable wear-resistant scraper chain includes a plurality of chain links hinged in sequence. Taking the moving direction of the chain link as the front-back direction, two scrapers 1 are arranged on the left and right sides of each chain link. A reinforcing rib plate 4 is arranged at the rear side of each scraper 1, and each scraper 1 is detachably mounted on the chain link through a bolt-nut assembly 5. When the drag conveyor is vertically conveying, due to the continuous feeding of the lower horizontal section, the upper material generates a pushing force on the lower material, so as to form a continuous and integral material flow to be conveyed.

[0026] Compared with the prior art, by arranging a reinforcing rib plate 4 at the rear side of each scraper 1, the strength of the scraper 1 can be increased, and the deformation of the scraper 1 can be avoided. Each scraper 1 is detachably mounted on the chain link through a bolt-nut assembly 5. When replacing the scraper 1, only the two side scrapers 1 need to be replaced, which can greatly reduce the maintenance cost, reduce the labor intensity, and is easy to replace, bringing huge economic benefits to the enterprise. The specific method is as follows: When manufacturing the scraper 1, the two side scrapers 1 are made into detachable movable scrapers 1 and are connected by bolts, and a reinforcing rib plate 4 is added (such as by welding) on the scraper 1 to increase the bearing capacity of the scraper 1. This scraper 1 can be applied to new equipment or old equipment that has been used for many years, and can effectively solve problems such as easy deformation, fracture, and difficult replacement of the scraper 1.

[0027] In some embodiments, each chain link includes an integrally formed chain head 2, a chain tail 3, and a connecting plate 10 connecting the chain head 2 and the chain tail 3. Among two adjacent chain links, the chain tail 3 of one chain link is connected to the chain head 2 of the other chain link through a connecting component, and each scraper 1 is detachably mounted on the connecting plate 10 through a bolt-nut assembly 5. The integrally formed design of the chain head 2, the chain tail 3, and the connecting plate 10 enhances the overall strength and stability of the chain link, and reduces the risk of failure caused by insecure connection. The detachable scraper 1 design is convenient for regular inspection and maintenance, and extends the service life of the equipment. Specifically, the scraper 1 can be selected with a thickness reaching 8 mm, made of Q235 ordinary carbon steel, and finally made into a movable scraper with a length of 140 mm and a width of 30 mm.

[0028] In some embodiments, the scraper 1 extends in the left - right direction. The connecting plate 10 is provided with first mounting holes penetrating through its left and right sides. One end of the scraper 1 is further provided with a mounting plate 11 perpendicular to it. The mounting plate 11 is provided with second mounting holes corresponding to the first mounting holes. The bolt - nut assembly 5 passes through the first mounting holes and the second mounting holes to mount the scraper 1 on the connecting plate 10. Specifically, the scraper 1 and the mounting plate 11 are integrally formed. By providing the mounting plate 11, the contact surface between the scraper 1 and the connecting plate 10 can be increased, improving the connection stability of the scraper 1.

[0029] In some embodiments, two scrapers 1 mounted on the same connecting plate 10 are oppositely arranged on the left and right sides of the connecting plate 10. Along the length direction of each connecting plate 10, at least two first mounting holes are provided, and along the length direction of each mounting plate 11, at least two second mounting holes are provided. The two oppositely arranged scrapers 1 on the left and right share two bolt - nut assemblies 5. The bolt in the bolt - nut assembly 5 is an M16 hexagon - head bolt. By using two bolt - nut assemblies 5, the two oppositely arranged scrapers 1 are jointly connected to the connecting plate 10, which can save components while further increasing the connection stability of the scraper 1, and is convenient for disassembly and assembly, reducing the operation steps.

[0030] In some embodiments, each reinforcing rib plate 4 extends from the end of the scraper 1 close to the connecting plate 10 to the other end of the scraper 1, and the bottom of the reinforcing rib plate 4 is higher than the bottom of the scraper 1. During use, the height of the reinforcing rib plate 4 does not affect the movement of the scraper 1, thus avoiding material jamming and having high safety performance.

[0031] In some embodiments, the installation position of the reinforcing rib plate 4 is at the middle in the vertical direction of the scraper 1. By installing the reinforcing rib plate 4 at the middle in the vertical direction of the scraper 1, the bending moment can be effectively dispersed and transmitted, reducing the stress concentration on a single cross - section and avoiding the phenomenon of excessive stress concentration in a local area, thereby improving the bending resistance of the entire structure.

[0032] In some embodiments, as Figure 3 shown, the overall thickness of the reinforcing rib plate 4 accounts for at least one - half of the thickness of the scraper 1. By increasing the thickness of the reinforcing rib plate 4, the overall structural strength of the scraper 1 can be significantly improved, enabling the scraper 1 to maintain a stable shape and size when bearing loads and reducing the risk of deformation or damage caused by stress concentration.

[0033] In some embodiments, the cross - section of the reinforcing rib plate 4 is square, which is convenient for processing and manufacturing and is conducive to mass production.

[0034] In some embodiments, the cross-section of the reinforcing rib plate 4 is V-shaped, and the tip of the V-shape faces backward. The reinforcing rib plate 4 with a V-shaped cross-section can significantly improve the overall structural strength of the scraper 1, and the reinforcing rib plate 4 with a V-shaped cross-section can guide the material to pass through the scraper 1 more smoothly, which helps to reduce the blockage phenomenon of the material during transportation and improve the transportation efficiency of the material. At the same time, the design with the V-shaped tip facing backward also helps to reduce the friction force of the material on the scraper 1 and reduce energy consumption.

[0035] In some embodiments, the chain head 2 includes two clamping plates 7 that are connected to one end of the connecting plate 10 and have an opening groove formed in the middle. Each clamping plate 7 is provided with a first hole groove 8. The chain tail 3 is connected to the other end of the connecting plate 10. The chain tail 3 is provided with a second hole groove 9, and the chain tail 3 is configured to be able to be inserted into the corresponding opening groove so that the first hole groove 8 is aligned with the second hole groove 9. The connecting component includes a pin shaft 6 and a pin, which are used to connect the chain tail 3 and the chain head 2 by passing through the first hole groove 8 and the second hole groove 9. Specifically, as Figure 3 shown, the width of the opening groove is slightly larger than the width of the chain tail 3, and the difference in size is 1-2 millimeters. By configuring the chain tail 3 to be able to be inserted into the opening groove of the chain head 2 and aligning the first hole groove 8 with the second hole groove 9, the installation process can be simplified and the installation accuracy can be improved. It avoids the misalignment or offset problems that may occur in the traditional connection method, reduces the installation time and cost. At the same time, using the pin shaft 6 and the pin as the connecting component also facilitates the maintenance and replacement of components.

[0036] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0037] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it cannot be understood as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A detachable wear-resistant scraper chain, comprising a plurality of chain links hinged in sequence. Taking the moving direction of the chain links as the front-back direction, two scrapers (1) are arranged on the left and right sides of each chain link, and it is characterized in that, A reinforcing rib plate (4) is provided at the rear side of each scraper (1), and each scraper (1) is detachably mounted on the link through a bolt-nut assembly (5).

2. The detachable wear-resistant scraper chain according to claim 1, wherein Each link includes an integrally formed link head (2), a link tail (3), and a connecting plate (10) connecting the link head (2) and the link tail (3). Among two adjacent links, the link tail (3) of one link is connected to the link head of the other link through a connecting assembly. Each scraper (1) is detachably mounted on the connecting plate (10) through a bolt-nut assembly (5).

3. The detachable wear-resistant scraper chain according to claim 2, characterized in that, The scraper (1) extends in the left-right direction. The connecting plate (10) is provided with first mounting holes penetrating through its left and right sides. One end of the scraper (1) is further provided with a mounting plate (11) perpendicular to it. The mounting plate (11) is provided with second mounting holes corresponding to the first mounting holes. The bolt-nut assembly (5) passes through the first mounting holes and the second mounting holes to mount the scraper (1) on the connecting plate (10).

4. The detachable wear-resistant scraper chain according to claim 3, wherein, Two scrapers (1) mounted on the same connecting plate (10) are oppositely arranged on the left and right sides of the connecting plate (10). Along the length direction of each connecting plate (10), at least two first mounting holes are provided, and along the length direction of each mounting plate (11), at least two second mounting holes are provided. Two oppositely arranged scrapers (1) on the left and right share two bolt-nut assemblies (5).

5. The detachable wear-resistant scraper chain according to claim 2, wherein Each reinforcing rib plate (4) extends from the end of the scraper (1) close to the connecting plate (10) to the other end of the scraper (1), and the bottom of the reinforcing rib plate (4) is higher than the bottom of the scraper (1).

6. The detachable wear-resistant scraper chain according to claim 5, characterized in that, The mounting position of the reinforcing rib plate (4) is at the middle in the vertical direction of the scraper (1).

7. The detachable wear-resistant scraper chain according to claim 6, wherein The overall thickness of the reinforcing rib plate (4) accounts for at least one-half of the thickness of the scraper (1).

8. The detachable wear-resistant scraper chain according to claim 1, characterized in that, The cross-section of the reinforcing rib plate (4) is square.

9. The detachable wear-resistant scraper chain according to claim 1, characterized in that, The cross-section of the reinforcing rib plate (4) is V-shaped, and the tip of the V-shape faces backward.

10. The detachable wear-resistant scraper chain according to claim 2, wherein The link head (2) includes two clamping plates (7) connected to one end of the connecting plate (10) and having an opening groove formed in the middle. Each clamping plate (7) is provided with a first hole groove (8); the link tail (3) is connected to the other end of the connecting plate (10). The link tail (3) is provided with a second hole groove (9). The link tail (3) is configured to be inserted into the corresponding opening groove so that the first hole groove (8) is aligned with the second hole groove (9). The connecting assembly includes a pin shaft (6) and a pin, which are used to pass through the first hole groove (8) and the second hole groove (9) to connect the link tail (3) and the link head (2).

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