A composite differential assembly with facilitated internal lubrication

Abstract

The application discloses a composite differential assembly convenient for internal lubrication, which comprises a shell, a sliding mechanism and a sponge, a base is arranged on the outer side of the shell, a cover is arranged on the outer side of the base, the base is connected with one end of a shunt pipeline, the sliding mechanism comprises an exhaust pipeline, a one-way valve, a one-way air inlet valve and an air bag, and the exhaust pipeline is arranged in correspondence with the shunt pipeline, and the exhaust pipeline is connected with the air bag. The composite differential assembly convenient for internal lubrication, the buffer spring is deformed, stretched and contracted along with the vibration impact generated during the working of the device, the buffer spring drives the top plate and the connecting rod at the bottom of the top plate to move downward during the deformation and contraction process, and the connecting rod pushes and extrudes the pressing plate when sliding in the interior of the cover, so that the lubricating oil absorbed in the interior of the sponge can be extruded, the extruded lubricating oil flows to the interior of the base, and is shunted to the interior of the shell through the shunt pipeline on the base, so that the assembly is prevented from being broken due to poor lubrication and heat dissipation.

Description

Technical Field

[0001] This invention relates to the field of differential technology, specifically to a composite differential assembly that facilitates internal lubrication. Background Technology

[0002] A differential assembly is composed of several parts that perform a specific function, but it is also part of the overall system (the entire machine). This assembled (system) of parts is the assembly. "Differential" is simply a description of the function of one such assembly; it's the name of the component, but the word "assembly" is often omitted in colloquial speech. The automotive differential is one type of differential assembly, primarily composed of planetary gears, planetary gear carriers (differential housing), and half-shaft gears. A search revealed that a typical differential assembly in existing technology is disclosed in CN210240475U, which describes a differential assembly including a differential housing and a gear ring fixedly connected to the outside of the differential housing. The differential housing contains a planetary gear train and a half-shaft gear train, and the cavities of the planetary gear train and the half-shaft gear train are connected by meshing power. The differential housing contains a planetary gear system and a half-shaft gear system. The cavities of the planetary gear system and the half-shaft gear system are connected by meshing power. This application provides eccentric annular lubricating oil grooves on the relative rotating surfaces of the planetary gears, half-shaft gears and differential housing, thereby providing effective lubrication for the planetary gears and differential housing, and the half-shaft gears and differential housing. Moreover, the circular lubricating oil channels are easy to process, have low manufacturing costs, and are easy to control in terms of processing accuracy. This reduces wear between the gaskets and the differential housing or gears, and improves service life. Its main feature is that the planetary gears can not only transmit different speeds, but also transmit different torques, generating high differential torque transmission. This can, to a certain extent, prevent the phenomenon of one wheel slipping during driving, and improve the driving stability of the vehicle.

[0003] In summary, existing differential assemblies are prone to problems such as poor lubrication and heat dissipation due to insufficient lubrication oil supply during use, which can lead to component breakage. To address these issues, improvements to the existing equipment are necessary. Summary of the Invention

[0004] The purpose of this invention is to provide a composite differential assembly that facilitates internal lubrication, thereby solving the problems mentioned in the background art, such as poor lubrication and heat dissipation caused by insufficient lubricating oil supply in existing differential assemblies, which in turn lead to component breakage.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a composite differential assembly that facilitates internal lubrication, comprising a housing, a sliding mechanism, and a sponge.

[0006] A base is provided on the outside of the housing, and a cover is provided on the outside of the base. The base is connected to one end of the diversion pipe, and the other end of the diversion pipe is disposed inside the housing. The sliding mechanism includes an exhaust pipe, a one-way valve, a one-way intake valve, and an airbag. The exhaust pipe is correspondingly provided with the diversion pipe, and the exhaust pipe is connected to the airbag.

[0007] The sponge is placed inside the base, and a pressure plate is placed above the sponge. The pressure plate is connected to the top plate through a connecting rod. Buffer springs are symmetrically arranged on the outside of the connecting rod, and the two ends of the buffer springs are fixedly connected to the top plate and the cover, respectively. The opposite sides of the cover are connected to a first shaft and a second shaft, and both the first shaft and the second shaft are connected to the buffer through a universal coupling. An active bevel gear is arranged on the first shaft, and the active bevel gear is located on one side of the cover.

[0008] Preferably, the base and the cover are provided with extension plates opposite to each other, and the extension plates are connected through each other by a connector.

[0009] Preferably, the diversion pipes are symmetrically arranged on the shell, and the diversion pipes are arranged on both sides of the sponge.

[0010] Preferably, the exhaust pipe is provided with a one-way valve, and the end of the exhaust pipe away from the airbag is located above the diversion pipe. The airbag is equipped with a one-way intake valve, and the airbags are symmetrically arranged on the outside of the buffer spring.

[0011] Preferably, a guide block is connected to the pressure plate, and the guide block is slidably connected inside the groove.

[0012] Preferably, the groove is formed on the inner wall of the base and the cover, and the base and the cover are engaged and connected.

[0013] Preferably, two sets of connecting rods are symmetrically arranged, and the connecting rods are slidably connected inside the housing.

[0014] Preferably, a sun gear is connected to the first shaft, and the sun gear is meshed with the first planet gear and the second planet gear. The first planet gear and the second planet gear are meshed with the external gear, and the external gear is fixedly connected to the second shaft. The sun gear, the external gear, the first planet gear and the second planet gear are all located inside the housing, and the first planet gear and the second planet gear are correspondingly arranged with the diversion pipe. At the same time, the second planet gear is connected to the diversion pipe through a driven rotation mechanism.

[0015] Preferably, the driven rotating mechanism includes a driving gear disk, a first driven gear disk, a second driven gear disk, a collar, and a funnel. The driving gear disk is meshed with the first driven gear disk and the second driven gear disk, respectively. The first driven gear disk and the second driven gear disk are both connected to the diversion pipes on both sides through the collar, and the bottom of the diversion pipe is rotatably connected to the funnel.

[0016] Preferably, a method of using a composite differential assembly that facilitates internal lubrication includes the following steps:

[0017] S1: First, install the device in the corresponding position. At the same time, the device will generate vibration when it is working. The buffer spring will deform and buffer the vibration impact. During the deformation and contraction process, the buffer spring will pull the top plate and the connecting rod at the bottom to push the pressure plate down. During the downward movement of the pressure plate, it will squeeze the extrusion sponge below it.

[0018] S2: After being compressed, the lubricating oil inside the sponge will be discharged into the base. The lubricating oil flowing into the base will be discharged into the housing under the guidance of the diversion pipe, and will lubricate the transmission components inside. At the same time, the diversion pipe will rotate with the second planetary gear under the linkage of the first driven gear plate, the second driven gear plate and the driving gear plate, thereby promoting the discharge of lubricating oil and preventing lubricating oil from clogging or adhering to the inside of the diversion pipe.

[0019] S3: The airbag will be compressed during the downward movement of the top plate. After being compressed by the top plate, the airflow stored inside the airbag will be discharged through the exhaust pipe and blown into the diversion pipe below to clear it, thereby preventing the diversion pipe from being blocked by contaminants or impurities. The one-way valve is set to prevent lubricating oil from entering the airbag through the exhaust pipe and causing contamination.

[0020] S4: When the buffer spring drives the top plate to move up and reset, the airbag is no longer compressed and stretches accordingly. During the stretching process, the external airflow will enter the airbag autonomously through the one-way air intake valve to provide airflow for its next expiratory operation.

[0021] Compared with the prior art, the beneficial effects of the present invention are: the composite differential assembly that facilitates internal lubrication,

[0022] (1) The present invention can effectively solve the problem of poor lubrication and poor heat dissipation caused by insufficient lubricating oil supply in the existing differential assembly during use by using a buffer spring, connecting rod, top plate and pressure plate in combination, which leads to component breakage. The buffer spring deforms and expands and contracts with the vibration and impact generated during the operation of the device. During the deformation and contraction process, the buffer spring will drive the top plate and the connecting rod at its bottom to move down. At the same time, when the connecting rod slides inside the cover, it will push the pressure plate to squeeze the sponge, thereby squeezing out the lubricating oil absorbed inside the sponge. The squeezed lubricating oil will flow into the interior of the base and be distributed to the second planetary gear inside the housing through the distribution pipe on the base. During the rotation and meshing process, the second planetary gear will transfer the lubricating oil to the sun gear and the external gear. During the rotation process, the sun gear and the external gear will transfer the lubricating oil to the first planetary gear, thereby optimizing the structure of the device and avoiding component breakage due to poor lubrication and heat dissipation. Compared with the traditional method of injecting lubricating oil by centrifugation, it is more continuous and uniform.

[0023] (2) The present invention can effectively solve the problem that existing differential assemblies mostly inject lubricating oil through injection holes or pipes. However, after long-term use, injection holes and pipes are easily blocked by dust or sediment in the oil, which affects the normal injection of lubricating oil. When the airbag moves down with the buffer spring, it will be squeezed by the top plate. After being squeezed, the airbag stored in the airbag will be discharged through the exhaust pipe to blow air through the split pipe below it, thereby preventing the split pipe from being blocked by contaminants or impurities. This facilitates the lubricating oil inside the base to be discharged to the transmission parts inside the housing through the split pipe, thereby optimizing the structure of the device and ensuring the normal injection of lubricating oil. The one-way valve prevents lubricating oil from entering the airbag through the exhaust pipe, thereby preventing lubricating oil waste and preventing the airbag from being contaminated by lubricating oil. On the other hand, when the buffer spring moves the top plate up and resets, the airbag is no longer compressed and stretches accordingly. The external airflow will enter the airbag through the one-way intake valve to prepare for its next exhaust.

[0024] (3) The present invention can effectively solve the problem that the oil storage structure of the existing differential assembly is easily contaminated by high temperature and dust, which affects the quality of the lubricating oil and thus the lubrication work. When the interior of the base and the cover needs to be cleaned, the workers can separate the base and the cover by disassembling the connecting piece, so that the inner wall of the base and the cover can be cleaned. At the same time, the sponge inside the base and the cover can also be replaced. The disassembly process is relatively simple and convenient. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the main cross-sectional structure of the present invention;

[0026] Figure 2 This is a front view structural diagram illustrating the connection relationship between the housing, base, and cover of the present invention;

[0027] Figure 3 This is a schematic diagram of the overall structure of the connection relationship between the connecting rod, top plate, sliding mechanism and pressure plate of the present invention;

[0028] Figure 4 For the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0029] Figure 5 This is a side view schematic diagram of the connection relationship between the base, cover, extension plate and connector of the present invention;

[0030] Figure 6 For the present invention Figure 1 Enlarged structural diagram at point B.

[0031] In the diagram: 1. Shell; 2. Base; 3. Cover; 4. Extension plate; 5. Connector; 6. Diverter pipe; 7. Sliding mechanism; 701. Exhaust pipe; 702. One-way valve; 703. One-way intake valve; 704. Airbag; 8. Sponge; 9. Pressure plate; 10. Slide groove; 11. Guide block; 12. Connecting rod; 13. Top plate; 14. Buffer spring; 15. First shaft; 16. Second shaft; 17. Universal coupling; 18. Buffer; 19. Sun gear; 20. External gear; 21. First planetary gear; 22. Second planetary gear; 23. Driving bevel gear; 24. Driven rotating mechanism; 2401. Driving gear disc; 2402. First driven gear disc; 2403. Second driven gear disc; 2404. Collar; 2405. Funnel. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figure 1-6 This invention provides a technical solution: a composite differential assembly that facilitates internal lubrication.

[0034] Example 1

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, a base 2 is provided on the outside of the housing 1, and a cover 3 is provided on the outside of the base 2. The base 2 is connected to one end of the diversion pipe 6, and the other end of the diversion pipe 6 is provided through the interior of the housing 1. The sliding mechanism 7 includes an exhaust pipe 701, a one-way valve 702, a one-way intake valve 703, and an airbag 704. The exhaust pipe 701 is correspondingly provided with the diversion pipe 6, and the exhaust pipe 701 is connected to the airbag 704.

[0036] In a further embodiment, an extension plate 4 is provided opposite to the base 2 and the cover 3, and the extension plates 4 are connected through the connector 5. The operator can disassemble the base 2 and the cover 3 by removing the connector 5, thereby optimizing the structure of the device and facilitating the cleaning of the inside of the base 2 and the cover 3.

[0037] In a further embodiment, the diversion pipes 6 are symmetrically arranged on the housing 1, and the diversion pipes 6 are arranged on both sides of the sponge 8, and the diversion pipes 6 are rotatably connected to the housing 1.

[0038] In a further embodiment, a one-way valve 702 is provided on the exhaust pipe 701, and the end of the exhaust pipe 701 away from the airbag 704 is located above the diversion pipe 6. At the same time, the exhaust pipe 701 is a flexible hose, which facilitates the subsequent maintenance and cleaning of the base 2 and the cover 3.

[0039] In a further embodiment, a one-way air intake valve 703 is installed on the airbag 704, and the airbag 704 is symmetrically arranged on the outside of the buffer spring 14.

[0040] The driven rotating mechanism 24 includes a driving gear disk 2401, a first driven gear disk 2402, a second driven gear disk 2403, a collar 2404, and a funnel 2405. The driving gear disk 2401 is meshed with the first driven gear disk 2402 and the second driven gear disk 2403. The first driven gear disk 2402 and the second driven gear disk 2403 are both connected to the diversion pipes 6 on both sides through the collar 2404. The bottom of the diversion pipe 6 is rotatably connected to the funnel 2405. While discharging lubricating oil, the flow pipe 6 will rotate along with the rotation of the driving gear 2401, i.e. the second planetary gear 22, driven by the first driven gear 2402 and the second driven gear 2403. This rotation delivers the lubricating oil into the interior of the housing 1, thereby further preventing lubricating oil from clogging or adhering to the interior of the flow pipe 6. The funnel 2405 restricts the discharge position of the lubricating oil, preventing the lubricating oil from being splashed onto the side wall of the housing 1 due to the centrifugal force generated by the rotation of the flow pipe 6.

[0041] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the sponge 8 is placed inside the base 2, and a pressure plate 9 is placed above the sponge 8. The pressure plate 9 is connected to the top plate 13 through a connecting rod 12. Buffer springs 14 are symmetrically arranged on the outer side of the connecting rod 12, and the two ends of the buffer springs 14 are fixedly connected to the top plate 13 and the cover 3, respectively. The first shaft 15 and the second shaft 16 are connected to opposite sides of the housing 1, and the first shaft 15 and the second shaft 16 are both connected to the buffer 18 through a universal coupling 17. An active bevel gear 23 is provided on the first shaft 15, and the active bevel gear 23 is located on one side of the housing 1.

[0042] In a further embodiment, a guide block 11 is connected to the pressure plate 9, and the guide block 11 is slidably connected inside the slide groove 10. The guide block 11 serves to guide and restrict the position and movement of the pressure plate 9 and the connecting rod 12, thereby preventing the pressure plate 9 and the connecting rod 12 from shifting position during the up-and-down reciprocating movement, and thus improving the rationality of the device structure.

[0043] In a further embodiment, the groove 10 is formed on the inner wall of the base 2 and the cover 3, and the base 2 and the cover 3 are engaged and connected.

[0044] In a further embodiment, two sets of connecting rods 12 are symmetrically arranged, and the connecting rods 12 are slidably connected inside the cover 3.

[0045] Specifically, in the actual working process, the device is first installed in the corresponding position. At the same time, the device will generate vibration when it is working. The buffer spring 14 will deform and buffer the vibration impact. During the deformation and contraction process, the buffer spring 14 will pull the top plate 13 and the connecting rod 12 at the bottom to push the pressure plate 9 down. During the downward movement of the pressure plate 9, it will squeeze the compression sponge 8 below it. After being compressed, the lubricating oil inside the sponge 8 will be discharged into the interior of the base 2. The lubricating oil flowing into the base 2 will be discharged into the housing 1 under the guidance of the diversion pipe 6 and lubricate the transmission components inside it.

[0046] On the other hand, the airbag 704 will be compressed during the downward movement of the top plate 13. After being compressed by the top plate 13, the airflow stored inside the airbag 704 will be discharged through the exhaust pipe 701 and blown into the diversion pipe 6 below it to clear the blockage. This prevents the diversion pipe 6 from being blocked by contaminants or impurities, and facilitates the lubricating oil inside the base 2 to be discharged through the diversion pipe 6 to the transmission parts inside the housing 1. The one-way valve 702 prevents the lubricating oil from entering the airbag 704 through the exhaust pipe 701 and causing contamination. When the buffer spring 14 drives the top plate 13 to move upward and reset, the airbag 704 is no longer compressed and stretches accordingly. During the stretching process, the external airflow will enter the airbag 704 through the one-way air intake valve 703.

[0047] Example 2

[0048] This embodiment is a further description of the above embodiments. It should be understood that this embodiment includes all the aforementioned technical features and is further described in detail.

[0049] like Figure 1 and Figure 2 As shown, in a further embodiment, a sun gear 19 is connected to the first shaft 15, and the sun gear 19 is meshed with the first planet gear 21 and the second planet gear 22. The first planet gear 21 and the second planet gear 22 are meshed with the external gear 20, and the external gear 20 is fixedly connected to the second shaft 16.

[0050] In a further embodiment, the sun gear 19, the external gear 20, the first planetary gear 21 and the second planetary gear 22 are all disposed inside the housing 1, and the first planetary gear 21 and the second planetary gear 22 are correspondingly disposed with the diversion pipe 6. Meanwhile, the second planetary gear 22 is connected to the diversion pipe 6 through the driven rotation mechanism 24.

[0051] Specifically, the sun gear 19, external gear 20, first planetary gear 21 and second planetary gear 22 all play a role in transmission, and they are basic conventional components of the differential assembly. Since they are existing structures, their specific structures, functions and roles will not be described in detail here.

[0052] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A composite differential assembly for easy internal lubrication, comprising a housing (1), a sliding mechanism (7), and a sponge (8), characterized in that: A base (2) is provided on the outside of the housing (1), and a cover (3) is provided on the outside of the base (2). The base (2) is connected to one end of the diversion pipe (6), and the other end of the diversion pipe (6) is provided through the inside of the housing (1). The sliding mechanism (7) includes an exhaust pipe (701), a one-way valve (702), a one-way intake valve (703), and an airbag (704). The exhaust pipe (701) is provided correspondingly to the diversion pipe (6), and the exhaust pipe (701) is connected to the airbag (704). The sponge (8) is placed inside the base (2), and a pressure plate (9) is placed above the sponge (8). The pressure plate (9) is connected to the top plate (13) through a connecting rod (12). Buffer springs (14) are symmetrically arranged on the outside of the connecting rod (12), and the two ends of the buffer springs (14) are fixedly connected to the top plate (13) and the cover (3) respectively. The two opposite sides of the housing (1) are connected to a first shaft (15) and a second shaft (16), and both the first shaft (15) and the second shaft (16) are connected to the buffer (18) through a universal coupling (17). An active bevel gear (23) is provided on the first shaft (15), and the active bevel gear... Gear (23) is set on one side of housing (1). One-way valve (702) is set on exhaust pipe (701). The end of exhaust pipe (701) away from airbag (704) is set above diversion pipe (6). One-way intake valve (703) is installed on airbag (704). Airbag (704) is symmetrically set on the outside of buffer spring (14). Guide block (11) is connected to pressure plate (9). Guide block (11) is slidably connected to the inside of slide groove (10). Slide groove (10) is opened on the inner wall of base (2) and cover (3). Base (2) and cover (3) are engaged. Connecting rod (12) is symmetrically set on Two sets are provided, and the connecting rod (12) is slidably connected inside the casing (3). The first shaft (15) is connected to the sun gear (19), and the sun gear (19) is meshed with the first planet gear (21) and the second planet gear (22). The first planet gear (21) and the second planet gear (22) are meshed with the external gear (20), and the external gear (20) is fixedly connected to the second shaft (16). The sun gear (19), the external gear (20), the first planet gear (21) and the second planet gear (22) are all located inside the casing (1), and the first planet gear (21) and the second planet gear (22) are correspondingly arranged with the diversion pipe (6). The second planetary gear (22) is connected to the diversion pipe (6) through the driven rotation mechanism (24). The driven rotation mechanism (24) includes a driving gear (2401), a first driven gear (2402), a second driven gear (2403), a collar (2404), and a funnel (2405). The driving gear (2401) is meshed with the first driven gear (2402) and the second driven gear (2403) respectively. The first driven gear (2402) and the second driven gear (2403) are both connected to the diversion pipes (6) on both sides through the collar (2404). The bottom of the diversion pipe (6) is rotatably connected to the funnel (2405).

2. The composite differential assembly for easy internal lubrication according to claim 1, characterized in that: The base (2) and the cover (3) are provided with extension plates (4) opposite to each other, and the extension plates (4) are connected through each other by a connector (5).

3. The composite differential assembly for easy internal lubrication according to claim 1, characterized in that: The diversion pipes (6) are symmetrically arranged on the shell (1) and are arranged on both sides of the sponge (8).

4. A composite differential assembly with convenient internal lubrication according to any one of claims 1-3, characterized in that: Its usage includes the following steps: S1: First, install the device in the corresponding position. At the same time, the device will vibrate when it is working. The buffer spring (14) will deform and buffer the vibration impact. During the deformation and contraction process, the buffer spring (14) will pull the top plate (13) and the connecting rod (12) at the bottom to push the pressure plate (9) down. During the downward movement of the pressure plate (9), it will squeeze the squeezing sponge (8) below it. S2: After being compressed, the lubricating oil inside the sponge (8) will be discharged into the base (2). The lubricating oil flowing into the base (2) will be discharged into the housing (1) under the guidance of the diversion pipe (6) and lubricate the transmission components inside. At the same time, the diversion pipe (6) will rotate with the second planetary gear (22) under the linkage of the first driven gear plate (2402), the second driven gear plate (2403), and the driving gear plate (2401), thereby promoting the discharge of lubricating oil and preventing lubricating oil from clogging or adhering to the inside of the diversion pipe (6). S3: The airbag (704) will be squeezed during the downward movement of the top plate (13). After being squeezed by the top plate (13), the airflow stored inside the airbag (704) will be discharged through the exhaust pipe (701) and blow air to clear the diversion pipe (6) below it, thereby preventing the diversion pipe (6) from being blocked by pollutants or impurities. The one-way valve (702) is set to prevent lubricating oil from entering the interior of the airbag (704) through the exhaust pipe (701) and causing contamination. S4: When the buffer spring (14) drives the top plate (13) to move upward and reset, the airbag (704) is compressed and stretches accordingly. During the longitudinal stretching process, the external airflow will enter the airbag (704) autonomously through the one-way air inlet valve (703) to provide airflow for its next induced expulsion operation.

Images