High-strength bending-resistant polymer squeegee for squeegee conveyors
By optimizing the scraper structure using ultra-high molecular weight polyethylene material and an invisible sealing reinforcement component, the bending and breakage problems of scraper conveyors when conveying high-density materials have been solved. This has resulted in high strength and impact resistance of the scraper, expanded its application range, and reduced equipment operating resistance and maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ANHUI RUIJIE MACHINERY EQUIPMENT CO LTD
- Filing Date
- 2026-05-25
- Publication Date
- 2026-06-30
AI Technical Summary
The scrapers of existing scraper conveyors are not strong enough, and they are prone to bending or breaking when conveying high-density materials, which limits their application range.
The scraper body is made of ultra-high molecular weight polyethylene material, combined with a concealed cover, a pusher groove and reinforcement components to optimize the stress distribution, enhance the overall strength and impact resistance of the scraper, hide the screw head through the concealed cover to maintain the integrity of the pusher groove, and enhance the rigidity of the scraper end through a C-shaped reinforcement frame.
It significantly improves the overall strength and impact resistance of the scraper, avoids bending and breakage, expands the scope of application, reduces equipment operating resistance and maintenance costs, and improves service life and conveying stability.
Smart Images

Figure CN122300892A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of scraper conveyor technology, and more specifically, to a high-strength, bending-resistant polymer scraper for a scraper conveyor. Background Technology
[0002] A scraper conveyor is a mechanical device that uses a chain to drive scrapers to continuously transport bulk materials in a trough. It is widely used in industries such as coal mining, metallurgy, building materials, and grain. It has a compact structure, good sealing performance, and is suitable for horizontal or slightly inclined conveying. The scraper is a component of the scraper conveyor. Its function in the scraper conveyor is to push and drive the material forward, so that the material moves continuously along the trough, preventing it from falling back, accumulating, and blocking, and ensuring smooth and efficient conveying.
[0003] Although the scrapers of existing scraper conveyors can be used normally, they still have many shortcomings in actual use. For example, the scrapers of existing scraper conveyors are not strong enough, and they are prone to bending or even breaking when conveying some high-density materials. This results in poor actual performance of the scrapers of existing scraper conveyors, limited applicability, and hinders their widespread use. Summary of the Invention
[0004] To overcome the aforementioned deficiencies of the prior art, embodiments of the present invention provide a high-strength, bending-resistant polymer scraper for a scraper conveyor. By incorporating a concealed cover, a pusher chute, and reinforcing components, the present invention achieves high strength, preventing bending and breakage when conveying high-density materials in the scraper conveyor. This results in better practical performance, significantly expands the scope of application, and facilitates widespread use, thereby addressing the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-strength, bending-resistant polymer scraper for a scraper conveyor, comprising a scraper body, wherein a pushing groove and an installation groove are respectively provided on both sides of the scraper body, and two pairs of installation holes are provided between the pushing groove and the installation groove. The two pairs of installation holes are symmetrically arranged at both ends of the scraper body, and the installation holes are through-holes in the scraper body. A concealed installation groove is provided on the outer side of the end of each pair of installation holes near the pushing groove, and a concealed cover is provided inside the concealed installation groove. The curvature of the surface of the concealed cover away from the installation hole is the same as the curvature of the inner wall of the pushing groove. Reinforcing components are provided at both ends of the scraper body, and arc-shaped grooves are provided on both sides of the scraper conveyor scraper, that is, arc-shaped grooves are provided on both sides of the scraper body. The arc-shaped pusher trough and the arc-shaped mounting trough can optimize the force distribution and reduce stress concentration, thereby improving the overall strength and impact resistance of the scraper and reducing the probability of scraper bending and breakage. After the scraper body is installed on the scraper conveyor, the screw head will be hidden in the concealed mounting trough, and then the concealed cover will be covered. Since the shape of the concealed cover matches the concealed mounting trough, the cross-sectional shape of the side of the concealed cover away from the mounting hole is set to arc, and the curvature of the surface of the concealed cover away from the mounting hole is the same as the curvature of the inner wall of the pusher trough. Therefore, after the concealed cover is put on, the surface of the pusher trough can be restored to a flat surface, preventing the pushed material from entering the concealed mounting trough. At the same time, it can ensure the structural integrity of the pusher trough, thus ensuring the overall integrity of the scraper body. The reinforcement component includes a reinforcement frame, with a pair of screw holes through each end of the reinforcement frame. A mounting screw is inserted through the screw holes. Four screw holes are provided at each end of the scraper body. The C-shaped reinforcement frame is then fixed to both ends of the scraper body, which can enhance the rigidity of the scraper body ends, distribute the force and reduce deformation, thereby significantly improving the overall strength and impact resistance of the scraper body.
[0006] In a preferred embodiment, the scraper body is made of ultra-high molecular weight polyethylene (UHMWPE) material, and the concealed cover is also made of UHMWPE material. The scraper body made of UHMWPE has the advantages of high wear resistance, low coefficient of friction, good self-lubrication, high impact resistance, low operating noise, and can effectively protect the chain and trough. It also has the advantages of corrosion resistance and moisture resistance, which can significantly reduce the operating resistance and maintenance cost of the equipment, and improve the service life and conveying stability of the scraper conveyor.
[0007] In a preferred embodiment, the cross-sectional shape of the reinforcement frame is set to C-shape, and the reinforcement frame is made of aluminum alloy material.
[0008] In a preferred embodiment, the cross-sectional shape of the pusher groove is set to arc shape, and the cross-sectional shape of the mounting groove is set to arc shape.
[0009] In a preferred embodiment, the concealed cover matches the shape of the concealed mounting groove, and the cross-sectional shape of the side of the concealed cover away from the mounting hole is set to be arc-shaped.
[0010] In a preferred embodiment, two pairs of screw holes are symmetrically arranged on the reinforcing frame, which is in close contact with the outer wall of the scraper body end.
[0011] In a preferred embodiment, the four screw holes on the same side are arranged in pairs, and the two sets of screw holes on the same side are symmetrically arranged at the end of the scraper body.
[0012] In a preferred embodiment, the screw hole and the corresponding screw through hole are arranged collinearly, and the mounting screw is threadedly connected to the corresponding screw hole.
[0013] The technical effects and advantages of this invention are as follows: 1. The scraper body made of ultra-high molecular weight polyethylene of the present invention has strong wear resistance, low coefficient of friction, good self-lubricating performance, high impact resistance, low operating noise, and can effectively protect the chain and trough. It also has the advantages of corrosion resistance and moisture resistance, which can significantly reduce the operating resistance and maintenance cost of the equipment, and improve the service life and conveying stability of the scraper conveyor. 2. The present invention has arc-shaped grooves on both sides, that is, arc-shaped pushing grooves and arc-shaped mounting grooves are respectively provided on both sides of the scraper body, which can optimize the force distribution, reduce stress concentration, thereby improving the overall strength and impact resistance of the scraper and reducing the probability of scraper bending and breaking. 3. After the present invention is installed on the scraper conveyor, the head of the screw will be hidden in the concealed mounting groove. Then the concealed cover is covered. Since the shape of the concealed cover matches the concealed mounting groove, the cross-sectional shape of the side of the concealed cover away from the mounting hole is set to be arc-shaped, and the curvature of the surface of the concealed cover away from the mounting hole is the same as the curvature of the inner wall of the pusher groove. Therefore, after the concealed cover is put on, the surface of the pusher groove can be restored to be flush, preventing the pushed material from entering the concealed mounting groove. At the same time, the structural integrity of the pusher groove can be guaranteed, thus ensuring the overall integrity of the scraper body. 4. The C-shaped reinforcing frame of the present invention is fixed at both ends of the scraper body, which can enhance the rigidity of the scraper body ends, distribute the force and reduce deformation, thereby significantly improving the overall strength and impact resistance of the scraper body. 5. The present invention has high strength by incorporating a concealed cover, a pusher chute, and reinforcing components. When the scraper conveyor is conveying some high-density materials, it avoids bending and breakage, resulting in better practical application and a significantly expanded scope of application, which is conducive to its widespread use. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention.
[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the scraper body of the present invention.
[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the invisible cap of the present invention.
[0017] Figure 4 This is a three-dimensional structural diagram of the reinforcement frame of the present invention.
[0018] Figure 5 This is a schematic diagram of the overall rear-view three-dimensional structure of the present invention.
[0019] The attached diagram is labeled as follows: 1. Scraper body; 2. Pushing groove; 3. Mounting groove; 4. Mounting hole; 5. Concealed mounting groove; 6. Concealed cover; 7. Screw hole; 8. Reinforcing frame; 9. Screw through hole; 10. Mounting screw. Detailed Implementation
[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0021] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 and attached Figure 5As shown, this invention provides a high-strength, bending-resistant polymer scraper for a scraper conveyor, comprising a scraper body 1. The scraper body 1 has a pushing groove 2 and an installation groove 3 on both sides. Two pairs of installation holes 4 are provided between the pushing groove 2 and the installation groove 3, symmetrically arranged at both ends of the scraper body 1. The installation holes 4 penetrate the scraper body 1. Each pair of installation holes 4 has a concealed installation groove 5 on the outer side near the pushing groove 2. A concealed cover 6 is provided inside the concealed installation groove 5. The curvature of the surface of the concealed cover 6 away from the installation hole 4 is the same as the curvature of the inner wall of the pushing groove 2. Reinforcing components are provided at both ends of the scraper body 1. Arc-shaped grooves are provided on both sides of the scraper conveyor scraper, i.e., arc-shaped pushing grooves are provided on both sides of the scraper body 1. The material trough 2 and the arc-shaped mounting groove 3 can optimize the force distribution and reduce stress concentration, thereby improving the overall strength and impact resistance of the scraper and reducing the probability of scraper bending and breakage. After the scraper body 1 is installed on the scraper conveyor, the screw head will be hidden in the concealed mounting groove 5, and then the concealed cover 6 will be covered. Since the shape of the concealed cover 6 matches the concealed mounting groove 5, the cross-sectional shape of the side of the concealed cover 6 away from the mounting hole 4 is set to arc, and the curvature of the surface of the concealed cover 6 away from the mounting hole 4 is the same as the curvature of the inner wall of the push trough 2. Therefore, after the concealed cover 6 is covered, the surface of the push trough 2 can be restored to a flush position, preventing the pushed material from entering the concealed mounting groove 5. At the same time, it can ensure the structural integrity of the push trough 2, so that the integrity of the scraper body 1 is guaranteed. The reinforcement component includes a reinforcement frame 8, with a pair of screw holes 9 through each end of the reinforcement frame 8. A mounting screw 10 is installed through the screw holes 9. Four screw holes 7 are provided at both ends of the scraper body 1. The C-shaped reinforcement frame 8 is then fixed to both ends of the scraper body 1, which can enhance the rigidity of the scraper body 1 ends, distribute the force and reduce deformation, thereby significantly improving the overall strength and impact resistance of the scraper body 1.
[0022] The scraper body 1 is made of ultra-high molecular weight polyethylene (UHMWPE), and the invisible cover 6 is also made of UHMWPE. The scraper body 1 made of UHMWPE has strong wear resistance, low coefficient of friction, good self-lubricating properties, high impact resistance, low operating noise, and can effectively protect the chain and trough. It also has the advantages of corrosion resistance and moisture resistance, which can significantly reduce the operating resistance and maintenance costs of the equipment and improve the service life and conveying stability of the scraper conveyor.
[0023] The cross-sectional shape of the reinforcing frame 8 is C-shaped, and the reinforcing frame 8 is made of aluminum alloy.
[0024] The cross-sectional shape of the pusher groove 2 is set to arc, and the cross-sectional shape of the mounting groove 3 is set to arc.
[0025] The shape of the concealed cover 6 matches that of the concealed mounting groove 5, and the cross-sectional shape of the side of the concealed cover 6 away from the mounting hole 4 is set to be arc-shaped.
[0026] Two pairs of screw holes 9 are symmetrically arranged on the reinforcing frame 8, which is in close contact with the outer wall of the end of the scraper body 1.
[0027] The four screw holes 7 on the same side are arranged in pairs, and the two sets of screw holes 7 on the same side are symmetrically arranged at the end of the scraper body 1.
[0028] The screw hole 7 and the corresponding screw through hole 9 are arranged collinearly, and the mounting screw 10 is threadedly connected to the corresponding screw hole 7.
[0029] The specific implementation method is as follows: When using this invention, the scraper body 1 made of ultra-high molecular weight polyethylene has strong wear resistance, low friction coefficient, good self-lubricating performance, high impact resistance, low operating noise, and can effectively protect the chain and trough. It also has the advantages of corrosion resistance and moisture resistance, which can significantly reduce the operating resistance and maintenance cost of the equipment, and improve the service life and conveying stability of the scraper conveyor. Then, arc-shaped grooves are set on both sides of the scraper of the scraper conveyor, that is, arc-shaped push grooves 2 and arc-shaped mounting grooves 3 are respectively set on both sides of the scraper body 1. This can optimize the force distribution, reduce stress concentration, thereby improving the overall strength and impact resistance of the scraper, and reducing the probability of scraper bending and breakage. After the scraper body 1 is installed on the scraper conveyor, the screw head will be hidden in the hidden mounting groove 5, and then the hidden cover 6 is covered. Since the shape of the hidden cover 6 and the hidden mounting groove 5 are similar, The concealed cover 6 has an arc-shaped cross-section on the side away from the mounting hole 4, and the arc of the surface of the concealed cover 6 on the side away from the mounting hole 4 is the same as the arc of the inner wall of the pusher trough 2. Therefore, after the concealed cover 6 is put on, the surface of the pusher trough 2 can be restored to a flush position, preventing the pushed material from entering the concealed mounting groove 5. At the same time, it can ensure the structural integrity of the pusher trough 2, thus ensuring the integrity of the scraper body 1. Then, the C-shaped reinforcing frame 8 is fixed at both ends of the scraper body 1, which can enhance the rigidity of the scraper body 1 ends, distribute the force and reduce deformation, thereby significantly improving the overall strength and impact resistance of the scraper body 1. This makes the present invention have high strength, and when the scraper conveyor conveys some high-density materials, it avoids bending and breakage, making the actual use effect of the present invention better, significantly expanding the scope of application, and facilitating its promotion and use.
[0030] Working principle of this invention: Refer to the instruction manual appendix Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 and attached Figure 5When using this invention, the scraper body 1, made of ultra-high molecular weight polyethylene, features strong wear resistance, low friction coefficient, good self-lubricating performance, high impact resistance, low operating noise, and can effectively protect the chain and trough. It also has advantages such as corrosion resistance and moisture resistance, significantly reducing equipment operating resistance and maintenance costs, and improving the service life and conveying stability of the scraper conveyor. Furthermore, arc-shaped grooves are provided on both sides of the scraper body 1, namely, arc-shaped pusher grooves 2 and arc-shaped mounting grooves 3 are respectively provided on both sides. This optimizes the force distribution, reduces stress concentration, thereby improving the overall strength and impact resistance of the scraper and reducing the probability of scraper bending and breakage. After the scraper body 1 is installed on the scraper conveyor, the screw head is hidden in the concealed mounting groove 5, and then the concealed cover 6 is placed on top. Because the concealed cover 6 and the concealed mounting groove 5 are closely integrated, the scraper body 1 effectively protects the chain and trough, effectively protecting the chain and trough. It also has advantages such as corrosion resistance and moisture resistance, significantly reducing equipment operating resistance and maintenance costs, and improving the service life and conveying stability of the scraper conveyor. Then, arc-shaped pusher grooves 2 and arc-shaped mounting grooves 3 are provided on both sides of the scraper body 1. This optimizes the force distribution, reduces stress concentration, and thus improves the overall strength and impact resistance of the scraper, reducing the probability of scraper bending and breakage. After the scraper body 1 is installed on the scraper conveyor, the screw head is hidden in the concealed mounting groove 5, and then the concealed cover 6 is placed on top. The shape of the mounting groove 5 is matched, and the cross-sectional shape of the side of the invisible cover 6 away from the mounting hole 4 is set to arc. The arc of the surface of the invisible cover 6 away from the mounting hole 4 is the same as the arc of the inner wall of the pusher groove 2. Therefore, after the invisible cover 6 is put on, the surface of the pusher groove 2 can be restored to a flat surface, preventing the pushed material from entering the invisible mounting groove 5. At the same time, it can ensure the structural integrity of the pusher groove 2, thus ensuring the integrity of the scraper body 1. Then, the C-shaped reinforcing frame 8 is fixed at both ends of the scraper body 1, which can enhance the rigidity of the scraper body 1 ends, distribute the force and reduce deformation, thereby significantly improving the overall strength and impact resistance of the scraper body 1. This makes the strength of the invention high, avoiding bending and breakage when the scraper conveyor conveys some high-density materials. This makes the actual use effect of the invention better, significantly expands the scope of application, and is conducive to its promotion and use.
[0031] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other. In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A high-strength, bending-resistant polymer scraper for a scraper conveyor, comprising a scraper body (1), characterized in that: The scraper body (1) is provided with a push groove (2) and an installation groove (3) on both sides respectively. There are two pairs of installation holes (4) between the push groove (2) and the installation groove (3). The two pairs of installation holes (4) are symmetrically arranged at both ends of the scraper body (1). The installation holes (4) are provided through the scraper body (1). Each pair of installation holes (4) is provided with a hidden installation groove (5) on the outer side of the end near the push groove (2). A hidden cover (6) is provided inside the hidden installation groove (5). The curvature of the side surface of the hidden cover (6) away from the installation hole (4) is the same as the curvature of the inner wall of the push groove (2). Reinforcing components are provided at both ends of the scraper body (1). The reinforcement component includes a reinforcement frame (8), with a pair of screw holes (9) through each end of the reinforcement frame (8), and mounting screws (10) through each screw hole (9). The scraper body (1) has four screw holes (7) at each end.
2. The polymer scraper for a high-strength, bending-resistant scraper conveyor according to claim 1, characterized in that: The scraper body (1) is made of ultra-high molecular weight polyethylene material, and the invisible cover (6) is made of ultra-high molecular weight polyethylene material.
3. The polymer scraper for a high-strength, bending-resistant scraper conveyor according to claim 1, characterized in that: The cross-sectional shape of the reinforcing frame (8) is set to C-shape, and the reinforcing frame (8) is made of aluminum alloy material.
4. The polymer scraper for a high-strength, bending-resistant scraper conveyor according to claim 1, characterized in that: The cross-sectional shape of the pusher groove (2) is set to arc shape, and the cross-sectional shape of the mounting groove (3) is set to arc shape.
5. The polymer scraper for a high-strength, bending-resistant scraper conveyor according to claim 1, characterized in that: The shape of the concealed cover (6) matches the shape of the concealed mounting groove (5), and the cross-sectional shape of the side of the concealed cover (6) away from the mounting hole (4) is set to be arc-shaped.
6. The polymer scraper for a high-strength, bending-resistant scraper conveyor according to claim 1, characterized in that: Two pairs of screw holes (9) are symmetrically arranged on the reinforcing frame (8), and the reinforcing frame (8) is close to the outer wall of the end of the scraper body (1).
7. A high-strength, bending-resistant polymer scraper for a scraper conveyor according to claim 1, characterized in that: The four screw holes (7) on the same side are arranged in pairs, and the two sets of screw holes (7) on the same side are symmetrically arranged at the end of the scraper body (1).
8. The polymer scraper for a high-strength, bending-resistant scraper conveyor according to claim 1, characterized in that: The screw hole (7) is collinear with the corresponding screw through hole (9), and the mounting screw (10) is threadedly connected to the corresponding screw hole (7).