Wear-resistant composite gear with high structural strength

Abstract

The utility model discloses a kind of wear-resistant composite gear with high structural strength, including composite gear body, fixed shaft and two connecting shafts, wear-resistant reinforcing layer is equipped on the annular inner wall of axle hole of composite gear body, fixed shaft is penetrated through the axle hole of composite gear body and is clamped with wear-resistant reinforcing layer Fixed, sealing assembly is sleeved on fixed shaft, sealing assembly is clamped with wear-resistant reinforcing layer, and the left and right ends of fixed shaft are equipped with positioning assembly.The utility model is integrally injection molded by wear-resistant reinforcing layer of polyamide composite material and composite gear body, so that composite gear body has high strength and corrosion resistance and improves wear resistance, prolongs service life, by the axle hole of composite gear body that fixed shaft is penetrated, so that arc convex is inserted in arc slot, and composite gear body and fixed shaft are sealed using annular sealing ring and annular convex, without regular maintenance and replacement, convenient to use and reduce cost.

Description

Technical Field

[0001] This utility model relates to the field of composite gear technology, and in particular to a wear-resistant composite gear with high structural strength. Background Technology

[0002] Composite gears are a type of gear whose performance is improved through structural optimization and material combination. They use multi-layer composite materials or different material layers stacked together. The gear body and shaft core adopt a modular design. Composite gears are widely used in heavy machinery, automotive transmissions, wind power generation and other scenarios with high requirements for load-bearing capacity and durability.

[0003] Existing composite gears have low surface hardness, relatively poor corrosion resistance and wear resistance in practical use, and require regular maintenance and replacement, which is not only inconvenient to use, but also increases the cost of use. A wear-resistant composite gear with high structural strength is proposed to solve the above problems. Utility Model Content

[0004] In view of the shortcomings and defects in the existing technology, this utility model proposes a wear-resistant composite gear with high structural strength to solve the technical problem that existing composite gears have low surface hardness, relatively poor corrosion resistance and wear resistance in actual use, and require regular maintenance and replacement, which is not only inconvenient to use, but also increases the cost of use.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A high-strength, wear-resistant composite gear includes a composite gear body, a fixed shaft, and two connecting shafts. The composite gear body has a wear-resistant reinforcing layer on the annular inner wall of the shaft hole. The fixed shaft passes through the shaft hole of the composite gear body and is snapped and fixed with the wear-resistant reinforcing layer. A sealing component is sleeved on the fixed shaft and is snapped and fixed with the wear-resistant reinforcing layer. Positioning components are provided at both ends of the fixed shaft, and both connecting shafts are snapped and fixed with the positioning components.

[0006] Preferably, the wear-resistant reinforcing layer is made of polyamide composite material, and the wear-resistant reinforcing layer is integrally injection molded with the composite gear body.

[0007] Preferably, the fixed shaft has four arc-shaped protrusions on its annular sidewall inside the shaft hole of the composite gear body, and four arc-shaped slots on the annular inner wall of the wear-resistant reinforcing layer. The four arc-shaped protrusions are slidably inserted into the four arc-shaped slots respectively. The four arc-shaped protrusions are integrally cast with the fixed shaft, and the four arc-shaped protrusions and arc-shaped slots are arranged in a cross shape.

[0008] Preferably, the sealing assembly includes two annular sealing rings that are slidably fitted onto the fixed shaft. Each of the two annular sealing rings has an annular protrusion on its opposite sidewall. The wear-resistant reinforcing layer has annular grooves on its left and right end sidewalls. The two annular protrusions are respectively inserted into the two annular grooves. Both annular grooves are connected to four arc-shaped slots.

[0009] Preferably, the annular sealing ring and the annular protrusion are integrally cast, both the annular sealing ring and the annular protrusion are corrosion-resistant rubber products, and the annular sealing ring and the wear-resistant reinforcing layer, as well as the annular protrusion and the annular groove, are filled with sealant.

[0010] Preferably, the positioning component includes circular slots respectively disposed at the left and right ends of the fixed shaft, the two connecting shafts are respectively inserted into the two circular slots, the inner walls of the two circular slots facing the connecting shafts are provided with rectangular protrusions, the side walls of the two connecting shafts facing the rectangular protrusions are provided with rectangular slots, the two rectangular protrusions are respectively inserted into the two rectangular slots, the annular side walls of the two connecting shafts near the fixed shaft are provided with two symmetrically distributed arc-shaped inserts, the inner walls of the two circular slots away from the rectangular protrusions are provided with two symmetrically distributed arc-shaped slots, the two arc-shaped inserts on the same side are respectively inserted into the two arc-shaped slots, the rectangular protrusions are integrally cast with the fixed shaft, and the arc-shaped inserts are integrally cast with the connecting shaft.

[0011] Compared with the prior art, the advantages of this utility model are as follows: 1. By integrally injection molding the wear-resistant reinforcing layer of polyamide composite material with the composite gear body, the composite gear body has both high strength and corrosion resistance, and improved wear resistance, thus extending its service life.

[0012] 2. By passing the fixed shaft through the shaft hole of the compound gear body, the arc-shaped protrusion is inserted into the arc-shaped slot. The compound gear body and the fixed shaft are sealed by the annular sealing ring and the annular protrusion. No regular maintenance or replacement is required, making it convenient to use and reducing costs.

[0013] 3. By inserting the two connecting shafts into the circular slots at both ends of the fixed shaft, the rectangular protrusion is inserted into the rectangular slot, and the arc-shaped insert is inserted into the arc-shaped bayonet, which facilitates quick docking. The structure is simple and practical. Attached Figure Description

[0014] Figure 1 This is a perspective view of a wear-resistant composite gear with high structural strength proposed in this utility model. Figure 2 for Figure 1 A magnified view of a section at point A in the middle; Figure 3This is a schematic diagram of the annular sealing ring and annular protrusion of a wear-resistant composite gear with high structural strength proposed in this utility model. Figure 4 This is a schematic diagram of the fixed shaft of a high-strength, wear-resistant composite gear proposed in this utility model.

[0015] In the figure: 1. Composite gear body, 2. Fixed shaft, 3. Connecting shaft, 4. Wear-resistant reinforcing layer, 5. Arc-shaped protrusion, 6. Arc-shaped slot, 7. Annular sealing ring, 8. Annular protrusion, 9. Annular slot, 10. Circular slot, 11. Rectangular protrusion, 12. Rectangular slot, 13. Arc-shaped insert, 14. Arc-shaped bayonet. Detailed Implementation

[0016] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Reference Figure 1-4 A high-strength, wear-resistant composite gear includes a composite gear body 1, a fixed shaft 2, and two connecting shafts 3. The wear-resistant reinforcing layer 4 is made of polyamide composite material and is integrally injection molded with the composite gear body 1. Integrating the wear-resistant reinforcing layer 4 of polyamide composite material with the composite gear body 1 through injection molding gives the composite gear body 1 both high strength and corrosion resistance, improves wear resistance, and extends service life. The wear-resistant reinforcing layer 4 is provided on the annular inner wall of the shaft hole of the composite gear body 1. The fixed shaft 2 passes through the shaft hole of the composite gear body 1 and is snapped and fixed with the wear-resistant reinforcing layer 4. The fixed shaft 2 has four arc-shaped protrusions 5 on the annular side wall inside the shaft hole of the composite gear body 1. The annular inner wall of the wear-resistant reinforcing layer 4 has four arc-shaped slots 6. The four arc-shaped protrusions 5 are slidably inserted into the four arc-shaped slots 6. All four arc-shaped protrusions 5 are integrally cast with the fixed shaft 2. The four arc-shaped protrusions 5 and the arc-shaped slots 6 are arranged in a cross shape.

[0019] A sealing assembly is fitted onto the fixed shaft 2, and the sealing assembly is snapped and fixed to the wear-resistant reinforcing layer 4. The sealing assembly includes two annular sealing rings 7 that slide onto the fixed shaft 2. Each of the two annular sealing rings 7 has annular protrusions 8 on its opposite sidewalls. Each of the left and right end sidewalls of the wear-resistant reinforcing layer 4 has annular grooves 9. The two annular protrusions 8 are respectively inserted into the two annular grooves 9. Both annular grooves 9 are connected to four arc-shaped slots 6. The annular sealing rings 7 and annular protrusions 8 are integrally cast and are made of corrosion-resistant rubber. In this product, the space between the annular sealing ring 7 and the wear-resistant reinforcing layer 4, as well as the space between the annular protrusion 8 and the annular groove 9, is filled with sealant. The two ends of the fixed shaft 2 are fitted with the annular sealing ring 7, so that the annular protrusion 8 on the two annular sealing rings 7 are respectively inserted into the two annular grooves 9 on the wear-resistant reinforcing layer 4. The sealant is filled between the annular sealing ring 7 and the wear-resistant reinforcing layer 4, as well as between the annular protrusion 8 and the annular groove 9, effectively sealing the composite gear body 1 and the fixed shaft 2. No regular maintenance or replacement is required, making it convenient to use and reducing costs.

[0020] Positioning components are provided at both ends of the fixed shaft 2. Both connecting shafts 3 are engaged and fixed with the positioning components. The positioning components include circular slots 10 respectively located at the left and right ends of the fixed shaft 2. The two connecting shafts 3 are respectively inserted into the two circular slots 10. Rectangular protrusions 11 are provided on the inner walls of the two circular slots 10 facing the connecting shafts 3. Rectangular slots 12 are provided on the side walls of the two connecting shafts 3 facing the rectangular protrusions 11. The two rectangular protrusions 11 are respectively inserted into the two rectangular slots 12. Two symmetrically distributed arc-shaped inserts 13 are provided on the annular side walls of the two connecting shafts 3 near the fixed shaft 2. Two symmetrically distributed arc-shaped latches 14 are provided on the inner walls of the two circular slots 10 away from the rectangular protrusions 11. The two arc-shaped inserts 13 on the same side are respectively Inserted into two arc-shaped slots 14, the connecting shaft 3 and the fixed shaft 2 rotate synchronously. Only when the connecting shaft 3 and the fixed shaft 2 are pulled can the rectangular protrusion 11 be separated from the rectangular slot 12 and the arc-shaped insert 13 be separated from the arc-shaped slot 14. The two connecting shafts 3 are respectively inserted into the circular slots 10 at both ends of the fixed shaft 2, so that the rectangular protrusion 11 in the two circular slots 10 is respectively inserted into the rectangular slots 12 on the two connecting shafts 3, and the two symmetrically distributed arc-shaped inserts 13 on the connecting shaft 3 are respectively inserted into the two symmetrically distributed arc-shaped slots 14 in the circular slots 10. This facilitates quick docking, and the structure is simple and practical. The rectangular protrusion 11 and the fixed shaft 2 are integrally cast, and the arc-shaped insert 13 and the connecting shaft 3 are integrally cast.

[0021] In use, the wear-resistant reinforcing layer 4 of the polyamide composite material is integrally injection molded with the composite gear body 1, giving the composite gear body 1 both high strength and corrosion resistance, improving wear resistance, and extending service life. The fixed shaft 2 passes through the shaft hole of the composite gear body 1, so that the four cross-shaped arc protrusions 5 are respectively inserted into the four cross-shaped arc slots 6. Annular sealing rings 7 are sleeved on both ends of the fixed shaft 2, so that the annular protrusions 8 on the two annular sealing rings 7 are respectively inserted into the two annular grooves 9 on the wear-resistant reinforcing layer 4. Sealing adhesive is then filled into the annular sealing rings 7. Between the wear-resistant reinforcing layer 4 and the annular protrusion 8 and the annular groove 9, the composite gear body 1 and the fixed shaft 2 are effectively sealed, eliminating the need for regular maintenance and replacement. This makes it convenient to use and reduces costs. The two connecting shafts 3 are respectively inserted into the circular slots 10 at both ends of the fixed shaft 2, so that the rectangular protrusions 11 in the two circular slots 10 are respectively inserted into the rectangular grooves 12 on the two connecting shafts 3, and so that the two symmetrically distributed arc-shaped inserts 13 on the connecting shafts 3 are respectively inserted into the two symmetrically distributed arc-shaped bayonets 14 in the circular slots 10, which facilitates quick docking. The structure is simple and practical.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A wear-resistant composite gear with high structural strength, comprising a composite gear body (1), a fixed shaft (2), and two connecting shafts (3), characterized in that, The composite gear body (1) has a wear-resistant reinforcing layer (4) on the annular inner wall of the shaft hole. The fixed shaft (2) passes through the shaft hole of the composite gear body (1) and is snapped and fixed with the wear-resistant reinforcing layer (4). A sealing component is sleeved on the fixed shaft (2). The sealing component is snapped and fixed with the wear-resistant reinforcing layer (4). Positioning components are provided at the left and right ends of the fixed shaft (2). Both connecting shafts (3) are snapped and fixed with the positioning components.

2. The high-strength, wear-resistant composite gear according to claim 1, characterized in that, The wear-resistant reinforcing layer (4) is made of polyamide composite material, and the wear-resistant reinforcing layer (4) is integrally injection molded with the composite gear body (1).

3. The high-strength, wear-resistant composite gear according to claim 1, characterized in that, The fixed shaft (2) has four arc-shaped protrusions (5) on its annular sidewall inside the shaft hole of the composite gear body (1). The wear-resistant reinforcing layer (4) has four arc-shaped slots (6) on its annular inner wall. The four arc-shaped protrusions (5) are slidably inserted into the four arc-shaped slots (6). The four arc-shaped protrusions (5) are integrally cast with the fixed shaft (2). The four arc-shaped protrusions (5) and the arc-shaped slots (6) are arranged in a cross shape.

4. The high-strength, wear-resistant composite gear according to claim 3, characterized in that, The sealing assembly includes two annular sealing rings (7) on the sliding sleeve fixed shaft (2). Annular protrusions (8) are provided on the opposite side walls of the two annular sealing rings (7). Annular grooves (9) are provided on the left and right side walls of the wear-resistant reinforcing layer (4). The two annular protrusions (8) are respectively inserted into the two annular grooves (9). The two annular grooves (9) are connected to four arc-shaped slots (6).

5. A high-strength, wear-resistant composite gear according to claim 4, characterized in that, The annular sealing ring (7) and the annular protrusion (8) are integrally cast. Both the annular sealing ring (7) and the annular protrusion (8) are corrosion-resistant rubber products. The annular sealing ring (7) and the wear-resistant reinforcing layer (4), as well as the annular protrusion (8) and the annular groove (9) are filled with sealant.

6. The high-strength, wear-resistant composite gear according to claim 1, characterized in that, The positioning assembly includes circular slots (10) respectively disposed at the left and right ends of the fixed shaft (2). The two connecting shafts (3) are respectively inserted into the two circular slots (10). Each of the two circular slots (10) has a rectangular protrusion (11) on its inner wall facing the connecting shaft (3). Each of the two connecting shafts (3) has a rectangular slot (12) on its side wall facing the rectangular protrusion (11). The two rectangular protrusions (11) are respectively inserted into the two rectangular slots (12). Two symmetrically distributed arc-shaped inserts (13) are provided on the annular sidewall of the connecting shaft (3) near the fixed shaft (2). Two symmetrically distributed arc-shaped slots (14) are provided on the inner wall of the two circular slots (10) away from the rectangular protrusion (11). The two arc-shaped inserts (13) on the same side are respectively inserted into the two arc-shaped slots (14). The rectangular protrusion (11) and the fixed shaft (2) are integrally cast. The arc-shaped inserts (13) and the connecting shaft (3) are integrally cast.

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