Wear resistant gear

Abstract

The utility model discloses a kind of wear-resistant gears, belong to transmission member technical field, solve the problem that gear cannot be achieved artificial frequently adds lubricating oil in transmission process, also therefore lead to gear under long time and continuous use condition, extremely easy to appear damage condition problem. Including inner connecting ring, the middle connecting ring of being sleeved to its outside, and two half gears of being sleeved to the outside of middle connecting ring and being wrapped in the outside of inner connecting ring, the inner connecting ring exists oil storage cavity. The utility model works, centrifugal force generated by gear rotation makes lubricating oil in oil storage cavity in turn through first flow channel, second flow channel, main flow channel and branch flow channel, flow to tooth root, realize lubrication, reduce abrasion. The clearance between protruding block and interval groove controls lubricating oil flow, avoids throwing, ensure long time lubrication. After lubricating oil is exhausted, release nut and screw rod connection, separate half gear, exit sealing bolt, pour in lubricating oil, reassemble can restore self-lubrication.

Description

Technical Field

[0001] This utility model relates to the field of transmission components technology, and in particular to a wear-resistant gear. Background Technology

[0002] Gears are essential mechanical transmission components used to transmit power and change the speed and direction of motion. They achieve efficient power transmission through the meshing of teeth and are widely used in the automotive, machinery manufacturing, and aerospace industries. Gears are typically made of steel, cast iron, or plastic, and their design and manufacturing precision directly affect transmission efficiency and service life. High-quality gears provide efficient power transmission, low noise, and long lifespan, making them indispensable key components in modern mechanical transmission systems.

[0003] However, gears often require lubrication during transmission. Without lubrication, the teeth on the gear surface will wear due to friction during transmission. However, it is not possible to manually add lubricating oil to gears frequently during transmission, which makes them extremely prone to damage under long-term and continuous use.

[0004] Therefore, a wear-resistant gear is proposed to solve or alleviate the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a wear-resistant gear.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A wear-resistant gear includes an inner connecting ring, a middle connecting ring sleeved on its outer side, and two half gears sleeved on the outer side of the middle connecting ring and wrapped around the outer side of the inner connecting ring. The inner connecting ring has an oil storage cavity. The outer ring of the inner connecting ring has a first flow channel communicating with the oil storage cavity. The inner ring of the middle connecting ring has a plurality of second flow channels penetrating to its outer ring. The first flow channels and the second flow channels are staggered. The inner ring of each half gear has a main flow channel. One end of the main flow channel facing the outer ring of the half gear is connected to two sets of branch flow channels. Each set of branch flow channels penetrates the tooth root of the half gear and forms an open groove. The second flow channels are staggered with the main flow channel.

[0008] Preferably, the outer ring of the inner connecting ring is fixedly connected with a plurality of evenly spaced first outer protrusions, and a first outer spacer groove is formed between adjacent first outer protrusions. The inner ring of the middle connecting ring is fixedly connected with a plurality of evenly spaced first inner protrusions, and a first inner spacer groove is formed between adjacent first inner protrusions. When the inner connecting ring is embedded in the middle connecting ring, the first outer protrusions are embedded in the first inner spacer grooves, and the first inner protrusions are embedded in the first outer spacer grooves.

[0009] Preferably, the outer ring of the middle connecting ring is fixedly connected with a plurality of evenly spaced second outer protrusions, and a second outer spacer groove is formed between adjacent second outer protrusions. The inner ring of the half gear is provided with a mounting groove that can accommodate the inner connecting ring and the outer connecting ring. The inner ring of the mounting groove is fixedly connected with a plurality of evenly spaced second inner protrusions, and a second inner spacer groove is formed between adjacent second inner protrusions. When the middle connecting ring is embedded in the mounting groove, the second inner protrusions are embedded in the second outer spacer groove, and the second outer protrusions are embedded in the second inner spacer groove.

[0010] Preferably, there are gaps between the outer side of the first outer protrusion and the inner wall of the first inner spacer groove, between the inner side of the first inner protrusion and the inner wall of the first outer spacer groove, between the outer side of the second outer protrusion and the inner wall of the second inner spacer groove, and between the inner side of the second inner protrusion and the inner wall of the second outer spacer groove.

[0011] Preferably, the end face of the inner connecting ring is provided with an inner groove, the bottom of the inner groove is provided with an inner inlet hole communicating with the oil storage chamber, the inner ring of the inner inlet hole is provided with an internal thread, and a sealing bolt is threadedly connected to the inner inlet hole through the internal thread, the head of the sealing bolt being submerged in the inner groove.

[0012] Preferably, the half gear has an outer recessed groove on the side away from the mounting groove, and an outer through hole is formed at the bottom of the outer recessed groove. The end face of the inner connecting ring has an inner through hole that communicates with the outer through hole. A screw rod can pass through the inner through hole and the outer through hole, and nuts that are submerged in the outer recessed groove can be threaded to both ends of the screw rod.

[0013] Preferably, the length of the screw is greater than the sum of the groove depths of the inner through hole and the two outer through holes, and the length of the screw is less than or equal to the sum of the groove depths of the inner through hole, the two outer through holes, and the two outer countersunk grooves.

[0014] This utility model has the following beneficial effects:

[0015] During operation, the centrifugal force generated by the gear rotation causes the lubricating oil in the oil reservoir to flow sequentially through the first flow channel, the second flow channel, the main flow channel, and the branch flow channel towards the tooth root, achieving lubrication and reducing wear. The gap between the protrusion and the spacer groove controls the lubricating oil flow rate, preventing it from being thrown out and ensuring long-term lubrication. After the lubricating oil is exhausted, the connection between the nut and the screw is released, the half gear is separated, the sealing bolt is removed, lubricating oil is poured in, and reassembly restores self-lubrication. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is an exploded view of the present invention;

[0019] Figure 3 This is a cross-sectional view of the present invention.

[0020] 1. Half gear; 2. Outer countersunk groove; 3. Outer through hole; 4. Mounting groove; 5. Second inner protrusion; 6. Second inner spacer groove; 7. Main flow channel; 8. Branch flow channel; 9. Opening groove; 10. Inner connecting ring; 11. Inner through hole; 12. Oil storage chamber; 13. First flow channel; 14. Inner countersunk groove; 15. Inner inlet hole; 16. Sealing bolt; 17. First outer protrusion; 18. First outer spacer groove; 19. Middle connecting ring; 20. First inner protrusion; 21. First inner spacer groove; 22. Second flow channel; 23. Second outer protrusion; 24. Second outer spacer groove. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component 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.

[0025] Furthermore, the terms "first," "second," and "third" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] A type of wear-resistant gear, such as Figures 1 to 3As shown, it includes an inner connecting ring 10, a middle connecting ring 19 sleeved on its outer side, and two half gears 1 sleeved on the outer side of the middle connecting ring 19 and wrapped around the outer side of the inner connecting ring 10. The inner connecting ring 10 has an oil storage cavity 12. The outer ring of the inner connecting ring 10 has a first flow channel 13 communicating with the oil storage cavity 12. The inner ring of the middle connecting ring 19 has several second flow channels 22 penetrating to its outer ring. The first flow channel 13 and the second flow channel 22 are staggered. The inner ring of the half gear 1 has a main flow channel 7. The end of the main flow channel 7 facing the outer ring of the half gear 1 is connected to two sets of branch flow channels 8. Each set of branch flow channels 8 penetrates the tooth root position of the half gear 1 and forms an opening groove 9. The second flow channel 22 is staggered with the main flow channel 7.

[0028] The outer ring of the inner connecting ring 10 is fixedly connected with a plurality of evenly spaced first outer protrusions 17, and a first outer spacer groove 18 is formed between adjacent first outer protrusions 17. The inner ring of the middle connecting ring 19 is fixedly connected with a plurality of evenly spaced first inner protrusions 20, and a first inner spacer groove 21 is formed between adjacent first inner protrusions 20. When the inner connecting ring 10 is embedded in the middle connecting ring 19, the first outer protrusions 17 are embedded in the first inner spacer groove 21, and the first inner protrusions 20 are embedded in the first outer spacer groove 18. The outer ring of the middle connecting ring 19 is fixedly connected with a plurality of evenly spaced second outer protrusions 23, and a second outer spacer groove 24 is formed between adjacent second outer protrusions 23. The inner ring of the half gear 1 has an opening... The mounting groove 4 can accommodate the inner connecting ring 10 and the outer connecting ring. The inner ring of the mounting groove 4 is fixedly connected with a number of evenly spaced second inner protrusions 5. A second inner spacer groove 6 is formed between adjacent second inner protrusions 5. When the connecting ring 19 is embedded in the mounting groove 4, the second inner protrusions 5 are embedded in the second outer spacer groove 24, and the second outer protrusions 23 are embedded in the second inner spacer groove 6. There are gaps between the outer side of the first outer protrusion 17 and the inner wall of the first inner spacer groove 21, between the inner side of the first inner protrusion 20 and the inner wall of the first outer spacer groove 18, between the outer side of the second outer protrusion 23 and the inner wall of the second inner spacer groove 6, and between the inner side of the second inner protrusion 5 and the inner wall of the second outer spacer groove 24.

[0029] The inner connecting ring 10 has an inner groove 14 on its end face. The bottom of the inner groove 14 has an inner inlet hole 15 that communicates with the oil storage chamber 12. The inner ring of the inner inlet hole 15 has an internal thread. The inner inlet hole 15 is connected to a sealing bolt 16 through the internal thread. The head of the sealing bolt 16 is submerged in the inner groove 14. The half gear 1 has an outer groove 2 on the side away from the mounting groove 4. The bottom of the outer groove 2 has an outer through hole 3. The end face of the inner connecting ring 10 has an inner through hole 11 that communicates with the outer through hole 3. A screw can pass through the inner through hole 11 and the outer through hole 3. Nuts that are submerged in the outer groove 2 can be threaded to both ends of the screw. The length of the screw is greater than the sum of the groove depths of the inner through hole 11 and the two outer through holes 3. The length of the screw is less than or equal to the sum of the groove depths of the inner through hole 11, the two outer through holes 3, and the two outer grooves 2.

[0030] In actual operation, the lubricating oil in the oil storage cavity 12 within the inner connecting ring 10, under the centrifugal force generated by the gear rotation, flows outward through the first flow channel 13. Subsequently, the lubricating oil flows through the second flow channel 22, the main flow channel 7, and the branch flow channel 8 in sequence, from the opening groove 9 to the root of the half gear 1, thus achieving a good lubrication effect and reducing wear during gear transmission. Simultaneously, due to the arrangement of the first inner protrusion 20, the first outer protrusion 17, the second inner protrusion 5, and the second outer protrusion 23, ... This creates gaps between the outer side of the first outer protrusion 17 and the inner wall of the first inner spacer 21, between the inner side of the first inner protrusion 20 and the inner wall of the first outer spacer 18, between the outer side of the second outer protrusion 23 and the inner wall of the second inner spacer 6, and between the inner side of the second inner protrusion 5 and the inner wall of the second outer spacer 24. Lubricating oil can flow into the next flow channel through each gap, thereby reducing the amount of lubricating oil that diffuses outward and preventing a large amount of lubricating oil from being thrown out during gear rotation, thus ensuring that the gear can perform lubrication operations for a long time.

[0031] If the lubricating oil in the gear is exhausted, the operator only needs to disconnect the threaded connection between the nut and the screw, then separate the half gear 1, and then remove the inner connecting ring 10. The sealing bolt 16 in the inner inlet hole 15 and inner groove 14 of the inner connecting ring 10 is then removed. The operator pours lubricating oil into the oil reservoir 12, and then reverses the above operation to make the gear self-lubricated again.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A wear-resistant gear, characterized in that, The device includes an inner connecting ring (10), a middle connecting ring (19) sleeved on its outer side, and two half gears (1) sleeved on the outer side of the middle connecting ring (19) and wrapped around the outer side of the inner connecting ring (10). The inner connecting ring (10) has an oil storage cavity (12). The outer ring of the inner connecting ring (10) has a first flow channel (13) communicating with the oil storage cavity (12). The inner ring of the middle connecting ring (19) has several second flow channels (22) penetrating to its outer ring. The first flow channel (13) and the second flow channel (22) are staggered. The inner ring of the half gear (1) has a main flow channel (7). The end of the main flow channel (7) facing the outer ring of the half gear (1) is connected to two sets of branch channels (8). Each set of branch channels (8) penetrates the tooth root position of the half gear (1) and forms an opening groove (9). The second flow channel (22) is staggered with the main flow channel (7).

2. The wear-resistant gear according to claim 1, characterized in that, The outer ring of the inner connecting ring (10) is fixedly connected with a plurality of evenly spaced first outer protrusions (17), and a first outer spacer groove (18) is formed between adjacent first outer protrusions (17). The inner ring of the middle connecting ring (19) is fixedly connected with a plurality of evenly spaced first inner protrusions (20), and a first inner spacer groove (21) is formed between adjacent first inner protrusions (20). When the inner connecting ring (10) is embedded in the middle connecting ring (19), the first outer protrusions (17) are embedded in the first inner spacer groove (21), and the first inner protrusions (20) are embedded in the first outer spacer groove (18).

3. The wear-resistant gear according to claim 2, characterized in that, The outer ring of the middle connecting ring (19) is fixedly connected with a number of evenly spaced second outer protrusions (23), and a second outer spacer groove (24) is formed between adjacent second outer protrusions (23). The inner ring of the half gear (1) is provided with an installation groove (4) that can accommodate the inner connecting ring (10) and the outer connecting ring. The inner ring of the installation groove (4) is fixedly connected with a number of evenly spaced second inner protrusions (5), and a second inner spacer groove (6) is formed between adjacent second inner protrusions (5). When the middle connecting ring (19) is embedded in the installation groove (4), the second inner protrusions (5) are embedded in the second outer spacer groove (24), and the second outer protrusions (23) are embedded in the second inner spacer groove (6).

4. A wear-resistant gear according to claim 3, characterized in that, There are gaps between the outer side of the first outer protrusion (17) and the inner wall of the first inner spacer (21), between the inner side of the first inner protrusion (20) and the inner wall of the first outer spacer (18), between the outer side of the second outer protrusion (23) and the inner wall of the second inner spacer (6), and between the inner side of the second inner protrusion (5) and the inner wall of the second outer spacer (24).

5. A wear-resistant gear according to claim 1, characterized in that, The inner connecting ring (10) has an inner groove (14) on its end face. The bottom of the inner groove (14) has an inner inlet hole (15) that communicates with the oil storage chamber (12). The inner ring of the inner inlet hole (15) has an internal thread. The inner inlet hole (15) is connected to a sealing bolt (16) through the internal thread. The head of the sealing bolt (16) is submerged in the inner groove (14).

6. A wear-resistant gear according to claim 1, characterized in that, The half gear (1) has an outer recess (2) on the side away from the mounting groove (4). The bottom of the outer recess (2) has an outer through hole (3). The end face of the inner connecting ring (10) has an inner through hole (11) that communicates with the outer through hole (3). A screw can pass through the inner through hole (11) and the outer through hole (3). The two ends of the screw can be threaded with nuts that are submerged in the outer recess (2).

7. A wear-resistant gear according to claim 6, characterized in that, The length of the screw is greater than the sum of the groove depths of the inner through hole (11) and the two outer through holes (3), and the length of the screw is less than or equal to the sum of the groove depths of the inner through hole (11), the two outer through holes (3), and the two outer countersunk grooves (2).

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