Gearbox mechanism with lubrication structure

Abstract

This utility model relates to the field of gearbox technology, specifically to a gearbox mechanism with a lubrication structure. The gearbox housing is provided with an oil passage hole I and an oil passage bolt. Oil enters the oil passage bolt through the oil passage hole I, then flows through the channel on the oil passage plug into the input shaft assembly. The gearbox housing is also provided with an oil passage hole II, a small oil passage hole III, and a small oil passage hole IV. Oil enters the gearbox housing through oil passage hole II, then flows through the small oil passage holes III and IV into the intermediate shaft assembly. An oil collection groove and a lubrication hole are provided on the intermediate shaft assembly. The oil collection groove is connected to the lubrication hole, and some oil flows into the oil collection groove and then into the right / left bearing of the input shaft assembly through the lubrication hole. An oil return hole is provided on the intermediate shaft assembly and is connected to the oil circuit of the travel motor. By optimizing the gearbox structure and adding a forced lubrication mechanism, forced lubrication is achieved. An electronic oil pump actively draws oil, forming a pressurized lubricating oil flow that is delivered to the gearbox, ensuring that the gearbox receives sufficient lubrication.

Description

Technical Field

[0001] This utility model relates to the field of gearbox technology, and specifically to a gearbox mechanism with a lubrication structure. Background Technology

[0002] The gearbox is a core component of a mechanical transmission system. Its internal parts require proper lubrication to reduce friction, minimize wear, aid in heat dissipation, and ensure transmission efficiency. For example, the electric loader gearbox assembly disclosed in Chinese Patent Publication No. CN213655621U, while innovative, still has shortcomings. Currently, traditional gearboxes mostly use splash lubrication, where oil is splashed to various lubrication points by the rotation of gears. However, this lubrication method has significant drawbacks, resulting in uneven lubrication. For parts far from the splash area or those moving at low speeds, sufficient lubrication is often difficult to achieve. Over time, this accelerates wear on components, affecting the overall performance and lifespan of the gearbox. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a gearbox mechanism with a lubrication structure.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A gearbox mechanism with a lubrication structure includes a housing, and an input shaft assembly and an intermediate shaft assembly located within the housing, wherein:

[0006] The housing has an oil passage hole I and an oil passage bolt. Oil enters the oil passage bolt through the oil passage hole I, and then enters the input shaft assembly through the channel on the oil passage plug. It also has an oil passage hole II, a small oil passage hole III, and a small oil passage hole IV. Oil enters the housing through the oil passage hole II, and then enters the intermediate shaft assembly through the small oil passage holes III and IV. An oil collection groove and a lubrication hole are also provided. The oil collection groove is connected to the lubrication hole, and some oil flows into the oil collection groove and then enters the right / left bearing of the input shaft assembly through the lubrication hole. Finally, an oil return hole is provided, connected to the oil sump.

[0007] This technical solution optimizes the gearbox structure and adds a forced lubrication mechanism to achieve forced lubrication. An electronic oil pump actively draws oil, creating a pressurized lubricating oil flow that is delivered into the gearbox. Simultaneously, the working status of the forced lubrication mechanism is monitored, and the oil outlet pipe ensures the gearbox receives sufficient lubricating oil, effectively reducing friction and wear and ensuring normal gearbox operation. Specifically, oil enters the oil vent bolt through oil vent I, and then through the channel on the oil vent plug, allowing sufficient oil to enter the input shaft assembly. Based on changes in parameters such as the input shaft assembly speed and load, the electronic oil pump adjusts its output power to meet different lubrication requirements. By rationally designing various oil vents, oil collection grooves, lubrication holes, and return oil holes on the gearbox housing, a high degree of integration between the lubrication system and the main gearbox structure is achieved, resulting in a compact gearbox structure with a small footprint.

[0008] In addition, the gearbox mechanism with a lubrication structure proposed above according to this utility model may also have the following additional technical features:

[0009] According to one embodiment of the present invention, an electronic oil pump is provided on the housing, and the electronic oil pump draws oil from the oil pool at the bottom of the housing through an oil suction pipe; one end of the oil suction pipe is connected to the electronic oil pump, and the other end is connected to the housing through an oil suction flange.

[0010] This technical solution, by actively extracting oil, ensures that the oil is delivered to the parts that require lubrication and cooling with sufficient pressure and flow, thus meeting the needs of the transmission under different operating conditions.

[0011] According to one embodiment of the present invention, the oil suction pipe is provided with an oil suction filter, and its two ends are connected to the oil suction pipe through transition joint I and transition joint II.

[0012] In this technical solution, because impurities and wear particles will gradually settle to the bottom of the oil sump during use, an oil suction filter is required for filtration.

[0013] According to one embodiment of the present invention, the housing is provided with an oil pressure sensor for monitoring the working status of the electronic oil pump.

[0014] According to one embodiment of the present invention, the electronic oil pump is also connected to an oil outlet pipe, the other end of which is connected to the input shaft assembly and the intermediate shaft assembly.

[0015] In this technical solution, the filtered oil is delivered to the input shaft assembly and intermediate shaft assembly through the oil outlet pipe; the oil outlet pipe adopts a branch structure to ensure that the lubricating oil is evenly distributed to each lubrication point; after the oil arrives, it fully lubricates the bearings, gears and other key parts of the input shaft assembly and intermediate shaft assembly, reduces friction and wear, and ensures the normal operation of the gearbox; the lubricated oil flows back to the oil sump at the bottom of the gearbox to form a circulation.

[0016] According to one embodiment of the present invention, the input shaft assembly is provided with a meshing sleeve shifting mechanism, and there is a needle roller bearing and a needle roller bearing sleeve assembly between the mechanism and the input shaft assembly; a lip seal ring is provided on the input shaft assembly.

[0017] In this technical solution, the lip seal ring prevents oil leakage and ensures that the right / left bearing of the input shaft assembly receives continuous and stable lubrication.

[0018] Compared with the prior art, this utility model has the following advantages:

[0019] By optimizing the transmission structure and adding a forced lubrication mechanism, forced lubrication is achieved. The electronic oil pump actively draws oil and forms a pressurized lubricating oil flow to deliver it into the transmission. At the same time, the working status of the forced lubrication mechanism is monitored, and the oil outlet pipe ensures that the transmission receives sufficient lubricating oil, effectively reducing friction and wear and ensuring the normal operation of the transmission. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of the present invention.

[0021] Figure 2 This is the AA view of this utility model.

[0022] Figure 3 This is the left view of this utility model.

[0023] In the diagram: 1. Sealing gasket; 2. Cover; 3. Electronic oil pump; 4. Oil passage hole I; 5. Oil passage bolt; 6. Oil pressure sensor; 7. Oil passage plug; 8. Lubricating oil hole I; 9. Oil passage hole II; 10. Lubricating oil hole II; 11. Input shaft assembly; 12. Oil passage hole III; 13. Oil passage hole IV; 14. Intermediate shaft assembly; 15. Suction pipe; 16. Bolt I; 17. Oil outlet pipe; 18. Transition joint I; 19. Suction filter; 20. Transition joint II; 21. Housing; 22. Suction flange; 23. Adjustable joint; 24. Bolt II; 25. Bearing; 26. Lip seal; 27. Oil collection groove; 28. Lubrication hole; 29. ​​Oil return hole. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] like Figures 1 to 3As shown, this embodiment provides a gearbox mechanism with a lubrication structure, including a housing 21, and an input shaft assembly 11 and an intermediate shaft assembly 14 located within the housing 21, wherein:

[0027] The housing 21 is equipped with an oil passage hole I4 and an oil passage bolt 5. Oil enters the oil passage bolt 5 through the oil passage hole I4, and then enters the input shaft assembly 11 through the channel on the oil passage plug 7. The housing 21 is equipped with an oil passage hole II9, an oil passage hole III12, and an oil passage hole IV13. Oil enters the housing 21 through the oil passage hole II9, and then enters the intermediate shaft assembly 14 through the oil passage hole III12 and the oil passage hole IV13. The intermediate shaft assembly 14 is equipped with an oil collection groove 27 and a lubrication hole 28. The oil collection groove 27 is connected to the lubrication hole 28. Some oil flows into the oil collection groove 27 and enters the right / left bearing 25 of the input shaft assembly 11 through the lubrication hole 28. The intermediate shaft assembly 14 is equipped with an oil return hole 29, which is connected to the oil sump.

[0028] like Figures 1 to 3 As shown, this technical solution optimizes the gearbox structure and adds a forced lubrication mechanism to achieve forced lubrication. An electronic oil pump 3 actively draws oil, forming a pressurized lubricating oil flow that is delivered into the gearbox. Simultaneously, the working status of the forced lubrication mechanism is monitored, and the oil outlet pipe 17 ensures the gearbox receives sufficient lubricating oil, effectively reducing friction and wear and ensuring normal gearbox operation. Specifically, oil enters the oil passage bolt 5 through the oil passage hole I4, and then through the channel on the oil passage plug 7, allowing sufficient oil to enter the input shaft assembly 11. Based on changes in parameters such as the speed and load of the input shaft assembly 11, the electronic oil pump 3 adjusts its output power to meet different lubrication requirements. By rationally setting various oil passage holes, oil collection grooves 27, lubrication holes 28, and return oil holes 29 on the housing 21, a high degree of integration between the lubrication system and the main gearbox structure is achieved, making the entire gearbox mechanism compact and space-saving.

[0029] In addition, the gearbox mechanism with a lubrication structure proposed above according to this utility model may also have the following additional technical features:

[0030] According to one embodiment of the present invention, an electronic oil pump 3 is provided on the housing 21. The electronic oil pump 3 draws oil from the oil pool at the bottom of the housing 21 through an oil suction pipe 15. One end of the oil suction pipe 15 is connected to the electronic oil pump 3, and the other end is connected to the housing 21 through an oil suction flange 22.

[0031] This technical solution, by actively extracting oil, ensures that the oil is delivered to the parts that require lubrication and cooling with sufficient pressure and flow, thus meeting the needs of the transmission under different operating conditions.

[0032] According to one embodiment of the present invention, an oil suction filter 19 is provided on the oil suction pipe 15, and its two ends are connected to the oil suction pipe 15 through transition joint I 18 and transition joint II 20.

[0033] In this technical solution, because impurities and wear particles will gradually settle to the bottom of the oil sump during use, an oil suction filter 19 is required for filtration.

[0034] According to one embodiment of the present invention, an oil pressure sensor 6 for monitoring the working status of the electronic oil pump 3 is provided on the housing 21.

[0035] According to one embodiment of the present invention, the electronic oil pump is also connected to an oil outlet pipe, and the other end of the oil outlet pipe 17 is connected to the input shaft assembly 11 and the intermediate shaft assembly 14.

[0036] In this technical solution, the filtered oil is delivered to the input shaft assembly 11 and the intermediate shaft assembly 14 through the oil outlet pipe 17; the oil outlet pipe 17 adopts a branch structure to ensure that the lubricating oil is evenly distributed to each lubrication point; after the oil arrives, it fully lubricates the bearings 25, gears and other key parts of the input shaft assembly 11 and the intermediate shaft assembly 14, reduces friction and wear, and ensures the normal operation of the gearbox; the lubricated oil flows back to the oil sump at the bottom of the housing 21 to form a circulation.

[0037] According to one embodiment of the present invention, the input shaft assembly 11 is provided with a meshing sleeve shifting mechanism, and there is a needle roller bearing 25 and a needle roller bearing 25 sleeve assembly between the input shaft assembly 11 and the needle roller bearing 25; a lip seal ring 26 is provided on the input shaft assembly 11.

[0038] In this technical solution, the lip seal 26 prevents oil leakage and ensures that the right / left bearing 25 of the input shaft assembly 11 receives continuous and stable lubrication.

[0039] The usage process of the above embodiments is as follows: Figures 1 to 3As shown, the electronic oil pump 3 starts and draws oil from the oil sump at the bottom of the housing 21 through the oil suction pipe 15. The oil suction filter 19 on the oil suction pipe 15 filters the oil to remove impurities and wear particles. The filtered oil is then transported through the oil outlet pipe 17, which branches to ensure even distribution of the oil. The oil enters the oil vent bolt 5 through the oil vent hole I4, and then enters the input shaft assembly 11 through the oil vent plug 7. The electronic oil pump 3 adjusts its output power according to parameters such as the speed and load of the input shaft assembly 11. Some of the oil flows into the oil collection tank 27 and then through the lubrication hole 28 to the input shaft. The right / left bearing 25 of the assembly 11 is lubricated; simultaneously, oil enters the housing 21 through oil passage II9, and then enters the intermediate shaft assembly 14 through oil passages III12 and IV to lubricate relevant parts; after the oil fully lubricates the bearings 25, gears, and other key parts of the input shaft assembly 11 and intermediate shaft assembly 14, friction and wear are reduced; the lubricated oil flows back to the oil sump at the bottom of the housing 21 through the oil return hole 29, forming a circulation; in addition, the oil pressure sensor 6 on the housing 21 monitors the working status of the electronic oil pump 3 in real time, and can provide timely warnings in case of abnormality. The lip seal 26 of the input shaft assembly 11 prevents oil leakage and ensures that the bearing 25 receives continuous and stable lubrication.

[0040] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, it is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the present invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the scope of the claims.

Claims

1. A gearbox mechanism with a lubrication structure, characterized in that, Includes a housing (21), and an input shaft assembly (11) and an intermediate shaft assembly (14) located within the housing (21), wherein: The housing (21) is provided with an oil passage hole I (4) and an oil passage bolt (5). Oil enters the oil passage bolt (5) through the oil passage hole I (4) and then enters the input shaft assembly (11) through the channel on the oil passage plug (7). The housing is provided with an oil passage hole II (9), an oil passage hole III (12) and an oil passage hole IV (13). Oil enters the housing (21) through the oil passage hole II (9) and then enters the intermediate shaft assembly (14) through the oil passage hole III (12) and the oil passage hole IV (13). The housing is provided with an oil collection groove (27) and a lubrication hole (28). The oil collection groove (27) is connected to the lubrication hole (28). Some oil flows into the oil collection groove (27) and enters the bearing (25) on the right / left side of the input shaft assembly (11) through the lubrication hole (28). The housing is provided with an oil return hole (29) and is connected to the oil sump.

2. The gear box mechanism with lubrication structure according to claim 1, wherein, An electronic oil pump (3) is installed on the housing (21). The electronic oil pump (3) draws oil from the oil pool at the bottom of the housing (21) through the oil suction pipe (15). One end of the oil suction pipe (15) is connected to the electronic oil pump (3), and the other end is connected to the housing (21) through the oil suction flange (22).

3. The gear box mechanism with lubrication structure according to claim 2, wherein, The oil suction pipe (15) is equipped with an oil suction filter (19), and its two ends are connected to the oil suction pipe (15) through transition joint I (18) and transition joint II (20).

4. The gear box mechanism with lubrication structure according to claim 2, wherein, The housing (21) is equipped with an oil pressure sensor (6) to monitor the working status of the electronic oil pump (3).

5. The gear mechanism with lubrication structure according to claim 2, wherein The electronic oil pump (3) is also connected to an oil outlet pipe (17), the other end of which is connected to the input shaft assembly (11) and the intermediate shaft assembly (14).

6. The gear mechanism with lubrication structure according to claim 1, wherein The input shaft assembly (11) is provided with a meshing sleeve shifting mechanism, and there is a needle roller bearing and a needle roller bearing sleeve assembly between it and the input shaft assembly (11); a lip seal (26) is provided on the input shaft assembly (11).

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