A hypoid gear having a deep carburized gradient hardened layer

Abstract

The utility model relates to gear technical field discloses a kind of deep carburizing gradient hardening layer's Hailuo gear, including transmission shaft, the outer wall of one end of transmission shaft is provided with oil injection pipe and multiple oiling pipes, the inside of transmission shaft is provided with oil storage chamber one, the inside of transmission shaft is provided with push assembly one and oil level display component, the inner wall slidingly connected of oiling pipe has push assembly two, the outer wall of oiling pipe is provided with oil inlet pipe, the inside of gear is provided with lubricating component, the outer wall of gear is provided with multiple gear slot. In the utility model, through transmission shaft, oil storage chamber one, gear, lubricating component, oil injection pipe, oiling pipe, oil inlet pipe, gear, push assembly one, push assembly two, oil level display component and gear slot, it solves the problem that existing technology exists cavity oil injection needs to pass through oil pipe to resist closed assembly, operation relies on external tool, leading to the problem of inconvenient oil injection.

Description

Technical Field

[0001] This utility model relates to the field of gear technology, and in particular to a Hyva gear with a deep carburized gradient hardening layer. Background Technology

[0002] In the field of mechanical transmission, gears are key components, and their performance directly affects the operating efficiency and lifespan of equipment. Hyva gears are widely used in many industrial scenarios. To meet the increasing demands for high loads and long service lives, they are typically subjected to deep carburizing treatment to form a gradient hardened layer to improve performance.

[0003] A search revealed Chinese Patent Publication No. CN216842973U, which discloses a gear for a gearbox with a lubrication function. The gear includes several sets of equidistantly arranged teeth on its surface; tooth grooves between adjacent teeth; grooves on both sides of the gear's end faces, with oil flow grooves formed in these grooves; a fine hole between two sets of oil flow grooves, located inside the gear; and the grooves on both sides connected via the oil flow grooves and the fine hole. By providing symmetrically arranged cavities inside the gear and injecting oil into these cavities through through holes, the lubricating oil inside the cavities enters the fine hole through a connecting pipe when the gear rotates at high speed. This lubricating oil is then dispersed between the tooth grooves and into the grooves on both sides of the gear through the oil flow grooves, thus achieving lubrication of the gear. Furthermore, because the lubricating oil is located inside the gear, impurities at the bottom of the gearbox will not be carried out due to high-speed rotation, and the gear itself can be adequately lubricated.

[0004] In actual use, the aforementioned gears have the problem that lubrication of the cavity requires the use of an oil pipe to actuate the closing component, and the operation relies on external tools, resulting in inconvenience in lubrication. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a Hyva gear with a deep carburized gradient hardening layer, which aims to solve the problem in the prior art where cavity oil injection requires the use of an oil pipe to push against the closing component, and the operation relies on external tools, resulting in inconvenient oil injection.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a Hyva gear with a deep carburized gradient hardening layer, comprising a drive shaft, an oil injection pipe and multiple oil filling pipes provided on the outer wall of one end of the drive shaft, an oil storage chamber I provided inside the drive shaft, one end of the oil injection pipe and the oil filling pipes communicating with the oil storage chamber I, a push assembly I and an oil level display assembly provided inside the drive shaft, the outer wall of the push assembly I being slidably connected to the inner wall of the oil storage chamber I, a push assembly II being slidably connected to the inner wall of the oil filling pipes, an oil inlet pipe provided on the outer wall of the oil filling pipes, a gear provided on the outer wall of the drive shaft, a lubrication assembly provided inside the gear, one end of the oil inlet pipe being located inside the lubrication assembly, multiple tooth grooves provided on the outer wall of the gear, and one end of the lubrication assembly passing through one side of the tooth grooves.

[0007] The above technical solution involves injecting oil into the oil storage chamber 1 via the oil injection pipe, allowing the lubricating oil to enter the filling pipe, then the oil inlet pipe, and finally the lubrication assembly, thus achieving convenient oil injection for the gears. Furthermore, the cooperation between the first and second pushing components ensures continuous oil replenishment for the gears during rotation, thereby solving the problem in the prior art where cavity oil injection requires pushing the closing component through an oil pipe, and the operation relies on external tools, resulting in inconvenient oil injection.

[0008] Preferably, the pushing component includes a spring, and the outer wall of the other end of the transmission shaft is provided with a vent hole, which communicates with the oil storage chamber. One end of the spring is fixedly connected to the inner wall of the oil storage chamber near the vent hole, and the other end of the spring is fixedly connected to a piston. The outer wall of the piston is slidably connected to the inner wall of the oil storage chamber.

[0009] Preferably, the second pushing component includes a second spring, one end of which is fixedly connected to the inner wall of the refueling pipe on the side away from the drive shaft, and the other end of which is fixedly connected to a second piston. The outer wall of the second piston is slidably connected to the inner wall of the refueling pipe, and the outer wall of the second piston has a through hole. A limit post is provided inside one end of the second spring, and the limit post inside one end of the second spring is fixedly connected to the inner wall of the refueling pipe.

[0010] Preferably, a slider is fixedly connected to the outer wall of the drive shaft, and a groove is provided on one side of the gear to slide in connection with the outer wall of the slider.

[0011] Preferably, the gear has multiple rectangular slots on one side, the oil injection pipe is disposed inside the rectangular slots, and the outer wall of the oil inlet pipe passes through the inner wall of the rectangular slots.

[0012] Preferably, the lubrication assembly includes an oil reservoir chamber two, which is disposed inside the gear. The outer wall of the gear has a fine hole, which is disposed on one side of the tooth groove and communicates with the oil reservoir chamber two. The end of the oil inlet pipe away from the oil filling pipe is disposed inside the oil reservoir chamber two.

[0013] Preferably, the oil level display assembly includes a spring-retracting structure and an oil level rope. One end of the oil level rope is fixedly connected to one side of the piston, and the other end of the oil level rope is fixedly connected to one side of the spring-retracting structure. The outer wall of the oil level rope passes through both sides of the vent hole.

[0014] Preferably, the oil level display assembly includes a spring three and an oil level plate. One end of the spring three is fixedly connected to the inner wall of the oil storage chamber away from the oil injection pipe, and the other end of the spring three is fixedly connected to one side of the oil level plate. The other side of the oil level plate is fixedly connected to the end of the spring one away from the piston one.

[0015] This utility model has the following beneficial effects: 1. In this utility model, the transmission shaft provides support for the first oil storage chamber, the gear provides support for the lubrication assembly, the oil injection pipe communicates with the first oil storage chamber, the oil filling pipe communicates with the first oil storage chamber and the oil inlet pipe, and the oil inlet pipe communicates with the lubrication assembly, thereby realizing the oil injection of the gear. The cooperation of the first and second pushing components realizes the function of continuous oil injection of the gear, the oil level display component realizes the function of reminding to replenish oil, and through the cooperation of the gear groove, the problem of the prior art that the cavity oil injection requires the oil pipe to push the closing component, the operation depends on external tools, and the oil injection is inconvenient.

[0016] 2. In this utility model, the oil storage chamber is moved horizontally by the action of the spring, and the function of continuous oil injection into the gear is achieved through the cooperation of the vent hole.

[0017] 3. In this utility model, the piston moves vertically by the action of the second spring, and the continuous oil injection function of the gear is realized by the cooperation of the through hole and the limiting post.

[0018] 4. In this utility model, the oil level display component is designed to consist of a spring-loaded structure, an oil level rope or spring, and an oil level plate, thereby realizing the function of displaying oil replenishment. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a Hyva gear with a deep carburized gradient hardening layer proposed in this utility model; Figure 2 This is a three-dimensional structural diagram of one side of a Hyva gear with a deep carburized gradient hardening layer proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the internal structure of the drive shaft of a Hyva gear with a deep carburized gradient hardening layer proposed in this utility model. Figure 5 This is a schematic diagram of the structure of the oil level plate of a Hyva gear with a deep carburized gradient hardening layer proposed in this utility model. Figure 6 This is a schematic diagram of the sliding groove structure of a Hyva gear with a deep carburized gradient hardening layer proposed in this utility model. Figure 7 This is a schematic diagram of the cross-sectional structure of a Hyva gear with a deep carburized gradient hardening layer proposed in this utility model.

[0020] Legend: 1. Gear; 2. Tooth groove; 3. Oil injection pipe; 4. Oil filling pipe; 5. Drive shaft; 6. Rectangular groove; 7. Lubrication assembly; 70. Fine hole; 71. Oil reservoir chamber two; 8. Oil level display assembly; 9. Spring retraction structure; 10. Oil level rope; 11. Vent hole; 12. Oil inlet pipe; 13. Slider; 14. Push assembly one; 15. Oil reservoir chamber one; 16. Spring one; 17. Piston one; 18. Push assembly two; 19. Spring two; 20. Piston two; 21. Spring three; 22. Oil level plate; 23. Slide groove. Detailed Implementation

[0021] 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. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Example 1: Reference Figure 1 , Figure 4 and Figure 7This utility model provides an embodiment of a Hyva gear with a deep carburized gradient hardening layer, comprising a drive shaft 5, an oil injection pipe 3 and multiple oil filling pipes 4 provided on the outer wall of one end of the drive shaft 5, an oil storage chamber 15 provided inside the drive shaft 5, one end of the oil injection pipe 3 and the oil filling pipes 4 communicating with the oil storage chamber 15, a push assembly 14 and an oil level display assembly 8 provided inside the drive shaft 5, the outer wall of the push assembly 14 being slidably connected to the inner wall of the oil storage chamber 15, a push assembly 2 18 being slidably connected to the inner wall of the oil filling pipes 4, an oil inlet pipe 12 provided on the outer wall of the oil filling pipes 4, a gear 1 provided on the outer wall of the drive shaft 5, a lubrication assembly 7 provided inside the gear 1, one end of the oil inlet pipe 12 being located inside the lubrication assembly 7, multiple tooth grooves 2 provided on the outer wall of the gear 1, and one end of the lubrication assembly 7 passing through one side of the tooth grooves 2.

[0023] Specifically, the oil filling pipe 3 is an oil filling pipe with a one-way valve, which can be a spring-loaded one-way valve. The oil inlet pipe 12 is equipped with a one-way valve. In the use of gear 1, the rotation of gear 1 is generally driven by the rotation of the drive shaft 5. Before using gear 1, oil is injected through the oil pipe aligned with the oil filling pipe 3, so that the lubricating oil enters the oil storage chamber 15, then enters the oil filling pipe 4, then enters the oil inlet pipe 12, and finally enters the interior of the lubrication assembly 7, realizing convenient oil filling of gear 1.

[0024] When gear 1 rotates, lubricating oil overflows from lubrication component 7 into gear groove 2 for lubrication. It is horizontally slidably connected to oil storage chamber 15 by pushing component 14, and pushing component 14 always exerts force on the lubricating oil in oil storage chamber 15, thereby driving the lubricating oil to flow into filling pipe 4. Under the action of centrifugation, pushing component 2 18 moves towards the end of filling pipe 4 away from drive shaft 5, pushing the lubricating oil in filling pipe 4 to flow into lubrication component 7, thereby further realizing the function of continuous oil injection for gear 1. The remaining amount of lubricating oil in oil storage chamber 15 is detected by oil level display component 8, thus solving the problem in the prior art that cavity oil injection requires pushing the closing component through the oil pipe, and the operation depends on external tools, resulting in inconvenient oil injection.

[0025] Reference Figure 4 The push assembly 14 includes a spring 16. The outer wall of the other end of the drive shaft 5 is provided with a vent hole 11, which communicates with the oil storage chamber 15. One end of the spring 16 is fixedly connected to the inner wall of the oil storage chamber 15 near the vent hole 11. The other end of the spring 16 is fixedly connected to a piston 17, and the outer wall of the piston 17 is slidably connected to the inner wall of the oil storage chamber 15.

[0026] Specifically, the design of the vent 11 allows air to be introduced into the oil reservoir chamber 15 on the side of the spring 16, ensuring that the piston 17 can slide horizontally within the oil reservoir chamber 15. When oil is injected through the oil injection pipe 3, the lubricating oil enters the oil reservoir chamber 15, compressing the piston 17 and causing it to move towards the side of the oil reservoir chamber 15 closer to the vent 11, thus compressing the spring 16. After the oil injection is completed, the rebound of the spring 16 pushes the piston 17 towards the side of the oil reservoir chamber 15 closer to the oil injection pipe 3, compressing the lubricating oil and causing it to enter the filling pipe 4, thereby realizing the function of the pushing component 14 in pushing the lubricating oil.

[0027] Reference Figure 4 The second push assembly 18 includes a second spring 19. One end of the second spring 19 is fixedly connected to the inner wall of the refueling pipe 4 on the side away from the drive shaft 5. The other end of the second spring 19 is fixedly connected to a second piston 20. The outer wall of the second piston 20 is slidably connected to the inner wall of the refueling pipe 4. The outer wall of the second piston 20 has a through hole. A limit post is provided inside one end of the second spring 19. The limit post inside one end of the second spring 19 is fixedly connected to the inner wall of the refueling pipe 4.

[0028] Specifically, the diameter of the through hole on the outer wall of piston 20 is smaller than the inner diameter of oil inlet pipe 12. When oil is injected, lubricating oil enters oil reservoir chamber 15 and also enters oil filling pipe 4. When the speed of lubricating oil entering oil filling pipe 4 is less than the speed through the through hole, the position of piston 20 remains unchanged. When the speed of lubricating oil entering oil filling pipe 4 is greater than the speed through the through hole, the lubricating oil pushes piston 20 to move vertically in oil filling pipe 4, compressing spring 29. The vertical movement distance of piston 20 is limited by the action of the limiting post, while protecting the elasticity of spring 29. The lubricating oil around spring 29 enters lubrication assembly 7 through oil inlet pipe 12, thereby realizing convenient oil injection into lubrication assembly 7.

[0029] When the oil injection is finished, the rebound of spring 19 causes piston 20 to move vertically. When gear 1 rotates, centrifugal force causes piston 20 to compress spring 19, pushing the lubricating oil around spring 19 to flow continuously into lubrication assembly 7. Through the through hole, lubricating oil is provided to spring 19 while limiting the rapid flow of lubricating oil, thus realizing the function of continuously supplying oil to lubrication assembly 7 by pushing assembly 2 18.

[0030] Reference Figure 1 , Figure 4 and Figure 6 A slider 13 is fixedly connected to the outer wall of the drive shaft 5, and a groove 23 is provided on one side of the gear 1 to slide and connect with the outer wall of the slider 13.

[0031] Specifically, the sliding connection between slider 13 and slide groove 23 enables the rapid assembly of drive shaft 5 and gear 1, and enables drive shaft 5 to drive gear 1 to rotate.

[0032] Reference Figure 1 , Figure 4 and Figure 6 A plurality of rectangular grooves 6 are provided on one side of the gear 1, and the oil injection pipe 3 is located inside the rectangular grooves 6. The outer wall of the oil inlet pipe 12 passes through the inner wall of the rectangular grooves 6.

[0033] Specifically, the rectangular groove 6 provides space and protection for the refueling pipe 4, thereby improving the applicability of the gear 1.

[0034] Reference Figure 1 and Figure 7 The lubrication assembly 7 includes an oil reservoir 71, which is located inside the gear 1. The outer wall of the gear 1 has a fine hole 70, which is located on one side of the tooth groove 2 and communicates with the oil reservoir 71. The end of the oil inlet pipe 12 away from the oil filling pipe 4 is located inside the oil reservoir 71.

[0035] Specifically, there are multiple fine holes 70, which are evenly distributed on one side of the tooth groove 2. The lubricating oil enters the oil storage chamber 2 71 through the oil inlet pipe 12 and enters the outer side of the tooth groove 2 through the fine holes 70, thereby realizing the function of lubricating the gear 1.

[0036] Reference Figure 2 , Figure 3 and Figure 4 The oil level display assembly 8 includes a spring retraction structure 9 and an oil level rope 10. One end of the oil level rope 10 is fixedly connected to one side of the piston 17, and the other end of the oil level rope 10 is fixedly connected to one side of the spring retraction structure 9. The outer wall of the oil level rope 10 passes through both sides of the vent hole 11.

[0037] Specifically, the spring retraction structure 9 can use a spring spring structure, and the outer wall of the oil level rope 10 is provided with an oil level replenishment mark. Through the rebound of the spring 16, the piston 17 is driven to move away from the vent hole 11 in the oil storage chamber 15, thereby driving the oil level rope 10 to move. When the piston 17 moves close to the oil injection pipe 3, the lubricating oil in the oil storage chamber 15 needs to be replenished. At this time, the oil level rope 10 has a mark on the outer wall above the vent hole 11 to remind the user to replenish the oil, thus realizing the function of oil level display component 8 to display oil replenishment.

[0038] Example 2: Reference Figure 2 , Figure 3 and Figure 5The present invention also provides an embodiment in which the oil level display component 8 includes a spring 21 and an oil level plate 22. One end of the spring 21 is fixedly connected to the inner wall of the oil storage chamber 15 away from the oil injection pipe 3, and the other end of the spring 21 is fixedly connected to one side of the oil level plate 22. The other side of the oil level plate 22 is fixedly connected to the end of the spring 16 away from the piston 17.

[0039] Specifically, under the rebound of spring 3 21, the oil level plate 22 is pushed to move horizontally, and combined with the rebound of spring 1 16, the piston 17 is driven to move towards the oil injection pipe 3. When the piston 17 moves close to the oil injection pipe 3, spring 3 21 pushes the oil level plate 22 to the vent hole 11. The oil level plate 22 can be seen from the vent hole 11 into the oil storage chamber 15, but the spring cannot be seen, thus achieving the effect of reminding to add oil, thereby realizing the function of oil level display component 8 to display oil replenishment.

[0040] Working principle: When oiling is required, oil is injected through the oil pipe aligned with the oil injection pipe 3. The lubricating oil enters the first oil storage chamber 15, enters the oil inlet pipe 12 through the oil filling pipe 4, and then enters the second oil storage chamber 71, realizing the convenient oiling function of gear 1.

[0041] After the oil filling is completed, the rebound of spring 16 pushes piston 17 to move towards the side of oil reservoir 15 closer to oil filling pipe 3, squeezing the lubricating oil and causing it to enter the filling pipe 4. Under the rebound of spring 29, piston 20 pushes the lubricating oil that has entered the filling pipe 4 in the opposite direction. The position of piston 20 is stabilized by the through hole. At this time, because the pore size of fine hole 70 is small and there is no external force, the flow speed of lubricating oil in filling pipe 4 is slow.

[0042] When gear 1 rotates, under the action of centrifugal force, the lubricating oil in oil storage chamber 2 71 continuously flows out through the fine hole 70 to lubricate gear 1. Piston 2 20 squeezes spring 2 19, causing the lubricating oil in the filling pipe 4 to flow into the oil inlet pipe 12 and into the lubrication assembly 7 to replenish it. Through the action of spring 1 16, piston 1 17 pushes the lubricating oil to continuously enter the filling pipe 4 to replenish it, thereby realizing the function of continuously replenishing oil to oil storage chamber 2 71.

[0043] During the movement of piston 17, if the oil level display component 8 consists of a spring-loaded retraction structure 9 and an oil level rope 10, piston 17 drives the oil level rope 10 to move. When piston 17 moves close to the oil injection pipe 3, the lubricating oil in the oil storage chamber 15 needs to be replenished. At this time, the oil level rope 10 has a leakage mark on the outer wall above the vent hole 11 to remind the user to replenish oil. If the oil level display component 8 consists of spring 3 21 and an oil level plate 22, under the action of spring 3 21 and spring 16, the oil level plate 22 is pushed to cover the vent hole 11 to remind the user to replenish oil. This realizes the function of oil level display component 8 to display oil replenishment, thereby solving the problem in the prior art that cavity oil injection requires the oil pipe to push the closing component, and the operation depends on external tools, resulting in inconvenient oil injection.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A Hyva gear with a deep carburized gradient hardening layer, comprising a drive shaft (5), characterized in that: The transmission shaft (5) has an oil injection pipe (3) and multiple oil filling pipes (4) on its outer wall at one end. The transmission shaft (5) has an oil storage chamber (15) inside. One end of the oil injection pipe (3) and the oil filling pipe (4) are connected to the oil storage chamber (15). The transmission shaft (5) has a push assembly (14) and an oil level display assembly (8) inside. The outer wall of the push assembly (14) is slidably connected to the inner wall of the oil storage chamber (15). The inner wall of the oil filling pipe (4) is slidably connected to the push assembly (2) (18). The outer wall of the oil filling pipe (4) has an oil inlet pipe (12). The transmission shaft (5) has a gear (1) on its outer wall. The gear (1) has a lubrication assembly (7) inside. One end of the oil inlet pipe (12) is located inside the lubrication assembly (7). The outer wall of the gear (1) has multiple tooth grooves (2). One end of the lubrication assembly (7) passes through one side of the tooth grooves (2).

2. The Hyva gear with a deep carburized gradient hardening layer according to claim 1, characterized in that: The first push assembly (14) includes a first spring (16). The outer wall of the other end of the drive shaft (5) is provided with a vent hole (11). The vent hole (11) is connected to the first oil storage chamber (15). One end of the first spring (16) is fixedly connected to the inner wall of the first oil storage chamber (15) near the vent hole (11). The other end of the first spring (16) is fixedly connected to a first piston (17). The outer wall of the first piston (17) is slidably connected to the inner wall of the first oil storage chamber (15).

3. The Hyva gear with a deep carburized gradient hardening layer according to claim 1, characterized in that: The second pushing component (18) includes a second spring (19). One end of the second spring (19) is fixedly connected to the inner wall of the refueling pipe (4) away from the drive shaft (5). The other end of the second spring (19) is fixedly connected to a second piston (20). The outer wall of the second piston (20) is slidably connected to the inner wall of the refueling pipe (4). The outer wall of the second piston (20) has a through hole. A limit post is provided inside one end of the second spring (19). The limit post inside one end of the second spring (19) is fixedly connected to the inner wall of the refueling pipe (4).

4. The Hyva gear with a deep carburized gradient hardening layer according to claim 1, characterized in that: The outer wall of the drive shaft (5) is fixedly connected to a slider (13), and a groove (23) is provided on one side of the gear (1) to slide and connect with the outer wall of the slider (13).

5. The Hyva gear with a deep carburized gradient hardening layer according to claim 1, characterized in that: The gear (1) has multiple rectangular grooves (6) on one side, the oil injection pipe (3) is located inside the rectangular groove (6), and the outer wall of the oil inlet pipe (12) passes through the inner wall of the rectangular groove (6).

6. The Hyva gear with a deep carburized gradient hardening layer according to claim 1, characterized in that: The lubrication assembly (7) includes an oil storage chamber two (71), which is located inside the gear (1). The outer wall of the gear (1) is provided with a fine hole (70), which is located on one side of the tooth groove (2). The fine hole (70) communicates with the oil storage chamber two (71). The end of the oil inlet pipe (12) away from the oil filling pipe (4) is located inside the oil storage chamber two (71).

7. The Hyva gear with a deep carburized gradient hardening layer according to claim 1, characterized in that: The oil level display assembly (8) includes a spring retraction structure (9) and an oil level rope (10). One end of the oil level rope (10) is fixedly connected to one side of the piston (17), and the other end of the oil level rope (10) is fixedly connected to one side of the spring retraction structure (9). The outer wall of the oil level rope (10) passes through both sides of the vent hole (11).

8. The Hyva gear with a deep carburized gradient hardening layer according to claim 1, characterized in that: The oil level display assembly (8) includes a spring three (21) and an oil level plate (22). One end of the spring three (21) is fixedly connected to the inner wall of the oil storage chamber one (15) away from the oil injection pipe (3). The other end of the spring three (21) is fixedly connected to one side of the oil level plate (22). The other side of the oil level plate (22) is fixedly connected to the end of the spring one (16) away from the piston one (17).

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