A power distribution differential assembly for a disabled mobility vehicle

Abstract

The present invention discloses a power distribution differential assembly of a disabled mobility vehicle, and relates to the technical field of differentials. Because the disabled vehicle is a special vehicle, its stability and durability need to be maintained. However, when the existing disabled vehicle is in use, it needs to be suitable for roads of different states, which imposes a large load on the differential, thereby causing serious wear of internal mechanical parts. When the internal friction force becomes larger, it will cause the temperature to rise, accompanied by mechanical fatigue. The present invention can convert the internal oil by arranging an absorption tube and a heat absorption tube to avoid damage to parts caused by excessive temperature. In addition, different degrees of wear will occur during the use of the first gear and the circulation frame, and the wear will cause debris of the damaged part to fall inside. The debris falling inside is eliminated by oil circulation, thereby ensuring the internal lubricity and improving the stability of the disabled vehicle during use.

Description

Technical Field

[0001] The invention relates to the technical field of differentials, in particular to a power distribution differential assembly for a disabled mobility vehicle. Background Art

[0002] The function of the differential assembly is to allow the wheels to rotate at different speeds while transmitting power to the axles. The differential assembly ensures the comfort requirements of the vehicle's passengers during driving to reduce the driver's operating burden.

[0003] In this regard, the patent document with publication number CN212389730U discloses an internal lubrication structure of a vehicle differential assembly, including an output flange, a differential housing with a small clearance fit on the flange shaft of the output flange, and a half-axle gears symmetrically mounted in the differential housing and mounted on the flange shaft, and the half-axle gears and the differential housing are axially separated by a flat gasket, characterized in that an oil circuit 1 is formed between the flange shaft and the differential housing, and the oil circuit 1 is evenly spaced on the outer peripheral surface of the flange shaft, and an oil circuit 2 is formed between the half-axle gears and the flat gasket, and the oil circuit 2 and the oil circuit 1 are connected by the gap between the half-axle gears, the differential housing and the flange shaft. On the basis of not affecting the clearance fit between the flange shaft and the inner hole of the differential housing, the wear of the inner hole of the differential housing is reduced, the service life of the differential is extended, the lubrication effect inside the differential is improved, the reliability of the differential is improved, and the lubrication and heat conduction of the entire differential assembly are beneficial.

[0004] In this regard, the patent document with publication number CN220980250U discloses a differential, a powertrain and an electric vehicle. The differential includes a differential housing, planetary gears and a planetary shaft. The differential housing is used to accommodate the planetary shaft and the planetary gears. The differential housing is also used to fix the planetary shaft, and the planetary gears are sleeved on the planetary shaft. The planetary shaft includes a concave surface, which is used to contact the planetary gears. The concave surface along the circumference of the planetary shaft surrounds the outer circumference of the planetary shaft, and the concave surface along the radial direction of the planetary shaft is recessed from the outer circumference of the planetary shaft to the back of the planetary gear. The concave surface is the contact surface on the planetary shaft with the planetary gear. The planetary shaft has a wider contact surface in contact with the planetary gear, which is conducive to alleviating the problem of excessive local contact stress of the planetary shaft and avoiding excessive wear of the planetary shaft, thereby improving the service life of the differential and the structural strength of the powertrain, and improving the safety performance of the vehicle.

[0005] Nowadays, the application scope of differential assemblies is becoming more and more extensive. In order to improve the maneuverability of disabled vehicles, differentials are equipped on them for power distribution. Since disabled vehicles are special vehicles, their stability and durability need to be maintained. However, when existing disabled vehicles are in use, they need to be suitable for different road conditions, which puts a large load on the differential, resulting in more serious wear of internal mechanical parts. When the internal friction becomes larger, it will cause the temperature to rise, accompanied by mechanical fatigue.

[0006] In view of the above problems, a power distribution differential assembly for a disabled mobility vehicle is proposed. Summary of the invention

[0007] The purpose of the present invention is to provide a power distribution differential assembly for a disabled mobility vehicle, which solves the problem of severe internal wear of the differential assembly in the disabled vehicle in the background technology.

[0008] To achieve the above object, the present invention provides the following technical solution: a power distribution differential assembly for a disabled mobility scooter, comprising a mounting seat, a power distribution housing is mounted on one side of the mounting seat, a sealing cover is provided on the front of the power distribution housing, and the sealing cover is used to seal the power distribution housing;

[0009] A fixed rod is connected to the disabled vehicle through a mounting frame, a driving gear is installed on the fixed rod, a driven gear is arranged on one side of the power distribution housing, and the power distribution housing and the driven gear are rotationally connected;

[0010] A differential assembly is embedded in the fixed rod, and the differential assembly includes a central shaft, a first gear is connected to the central shaft, a circulating frame is connected to the driven gear, a second gear is connected to the upper and lower sides of the circulating frame, the second gear is meshed with the first gear, a scraper rod is fixedly connected to the middle position of the central shaft, and one side of the scraper rod is attached to the second gear;

[0011] The top end of the power distribution shell is connected to an elimination component, and the elimination component includes a circulation pipe, and the circulation pipe is embedded in the interior of the power distribution shell, wherein two groups of circulation pipes are provided, the circulation pipe located at the top end of the power distribution shell is used to transport liquid inside the power distribution shell, and the circulation pipe located at the bottom end of the power distribution shell is used to output liquid from the power distribution shell, and a sealing cover is provided on the side of the driven gear away from the power distribution shell, and the sealing cover and the driven gear are movably connected, a partition cover is embedded in the interior of the sealing cover, and a rotating wheel is provided inside the partition cover, and the rotating wheel is sleeved on the central shaft and moves with the central shaft.

[0012] Preferably, the first gear, the circulation frame, the second gear and the scraper rod are embedded in the interior of the power distribution housing, the connection between the power distribution housing and the driven gear is a sealed connection, and the interior of the power distribution housing stores oil for lubrication.

[0013] Preferably, the scraper rod is attached to the second gear, and the portion attached to the second gear is configured to be in an arc shape.

[0014] Preferably, a heat absorption tube is connected to the surface of the driven gear, the heat absorption tube is arranged in a spiral shape, the interior of the heat absorption tube is arranged to be hollow, one end of the heat absorption tube is connected to an inlet tube, and the other end is connected to an outlet tube.

[0015] Preferably, the inlet pipe and the outlet pipe penetrate the interior of the driven gear and extend to the interior of the sealing cover, the inlet pipe is located on the outside of the partition cover, and the outlet pipe is located on the inside of the partition cover.

[0016] Preferably, the surface of the heat absorbing tube is connected with an absorption tube, the absorption tube is wrapped around the outside of the heat absorbing tube, the two are tightly fitted together, and the absorption tube is arranged on the heat absorbing tube in a divergent shape.

[0017] Preferably, the suction tube passes through the interior of the driven gear and is embedded into the interior of the sealing cover, and a magnet is provided on the portion that passes through the driven gear and the sealing cover.

[0018] Preferably, the separation cover is configured as an annular structure, and the separation cover is wrapped around the outer side of the rotating wheel.

[0019] Preferably, the rotating wheel is made of a magnet, and three groups of protrusions are provided on the rotating wheel, and the three groups of protrusions are kept at the same distance from the center of the circle.

[0020] Preferably, the separation cover is provided with holes for the filtered oil to pass through, and the filtered oil is transported to the interior of the power distribution housing through the outlet pipe.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The power distribution differential assembly of a disabled mobility scooter provided by the present invention ensures power distribution by providing a driven gear, a first gear and a scraper rod. In addition, due to the simple relationship between the structures, it will not affect the convenience of the disabled vehicle when equipped on the disabled vehicle. On this basis, the internal oil can be converted by providing an absorption tube and a heat absorption tube. During the conversion, the internal temperature can be reduced to avoid damage to components caused by excessive temperature. In addition, different degrees of wear will occur during the use of the first gear and the circulation frame. The wear will cause debris of the damaged part to fall inside. The debris that falls inside can be eliminated by circulating the oil, thereby ensuring the internal lubrication and improving the stability of the disabled vehicle during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the power distribution housing and the driving gear of the present invention;

[0025] Figure 3It is a schematic diagram of the structure of the first gear and the second gear of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the central shaft rod and the scraper rod of the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the absorption tube and the heat absorption tube of the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the suction tube and the rotating wheel of the present invention;

[0029] Figure 7 It is a schematic structural diagram of the rotating wheel and the sealing cover of the present invention;

[0030] Figure 8 It is a schematic diagram of the structure of the rotating wheel and the separation cover of the present invention;

[0031] Fig. 9 It is a schematic diagram of the structure of the sealing cover and the outlet pipe of the present invention.

[0032] In the figure: 11, mounting seat; 12, power distribution housing; 13, fixing rod; 14, driving gear; 15, cover; 16, driven gear; 2, differential assembly; 21, central shaft; 22, first gear; 23, circulation frame; 24, second gear; 25, scraper rod; 3, elimination assembly; 31, circulation pipe; 32, absorption pipe; 33, heat absorption pipe; 34, partition cover; 35, rotating wheel; 36, sealing cover; 37, inlet pipe; 38, outlet pipe. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0035] Combination Figure 1-Figure 9 A power distribution differential assembly of a disabled mobility vehicle of the present invention comprises a mounting seat 11, a power distribution housing 12 is mounted on one side of the mounting seat 11, a cover 15 is arranged on the front of the power distribution housing 12, and the cover 15 is used to seal the power distribution housing 12;

[0036] A fixed rod 13 is connected to the disabled vehicle through a mounting frame, a driving gear 14 is installed on the fixed rod 13, and a driven gear 16 is provided on one side of the power distribution housing 12, and the power distribution housing 12 and the driven gear 16 are rotatably connected;

[0037] In the power distribution of the disabled vehicle, the driving gear 14 first provides kinetic energy. When the driving gear 14 rotates, the driven gear 16 is driven to rotate. When the driven gear 16 rotates, the first gear 22 and the circulating frame 23 also rotate. When the first gear 22 and the circulating frame 23 rotate, they mesh with the second gear 24, driving the second gear 24 to perform adaptive movement.

[0038] The fixed rod 13 is embedded with a differential assembly 2, which includes a central shaft 21, a first gear 22 is connected to the central shaft 21, a circulating frame 23 is connected to the driven gear 16, and a second gear 24 is connected to the upper and lower sides of the circulating frame 23, and the second gear 24 is meshed with the first gear 22. A scraper rod 25 is fixedly connected to the middle position of the central shaft 21, and one side of the scraper rod 25 is attached to the second gear 24, and the scraper rod 25 is attached to the second gear 24. The part attached to the second gear 24 is set to be an arc shape. The first gear 22, the circulating frame 23, the second gear 24 and the scraper rod 25 are embedded in the power distribution housing 12. The connection between the power distribution housing 12 and the driven gear 16 is a sealed connection, and the power distribution housing 12 stores oil for lubrication.

[0039] In the use of the disabled vehicle, the disabled vehicle needs to be suitable for different road conditions. Therefore, in the transmission of the differential, the wear between the mechanical parts is large. This is because different road surfaces give different feedback to the differential assembly. Therefore, the force between the first gear 22 and the second gear 24 is large, and wear will occur during rotation. Since it is a newly produced and assembled differential, the first gear 22 and the second gear 24 need to be run-in. During this process, debris will be generated. If the debris cannot be cleaned up in time, some of the debris cannot fall off from the first gear 22 or the second gear 24. In the next meshing, the remaining debris will cause the first gear 22 and The friction between the second gear 24 becomes larger, and even excessive extrusion causes deformation. Therefore, it is necessary to set a scraper rod 25 to eliminate residual debris and ensure that the meshing of the first gear 22 and the second gear 24 is not affected by the debris. Since the scraper rod 25 and the central shaft 21 are fixedly connected together, when the driven gear 16 rotates, the first gear 22 is driven to rotate. When the first gear 22 rotates, the central shaft 21 is driven to rotate. At this time, the circulation frame 23 rotates to drive the self-rotation of the second gear 24. During the self-rotation process, it constantly contacts with the scraper rod 25. The contact of the scraper rod 25 eliminates the surface debris and avoids the adhesion of the debris.

[0040] The top of the power distribution housing 12 is connected with an elimination component 3, and the elimination component 3 includes a circulation pipe 31, and the circulation pipe 31 is embedded in the interior of the power distribution housing 12, wherein two groups of circulation pipes 31 are provided, and the circulation pipe 31 located at the top of the power distribution housing 12 is used to transport liquid inside the power distribution housing 12, and the circulation pipe 31 located at the bottom of the power distribution housing 12 is used to output liquid from the power distribution housing 12, and a sealing cover 36 is provided on the side of the driven gear 16 away from the power distribution housing 12, and the sealing cover 36 and the driven gear 16 are movably connected, and a partition cover 34 is embedded in the sealing cover 36, and the partition cover 34 is set as an annular structure, and the partition cover 34 is wrapped around the outside of the rotating wheel 35, and a rotating wheel 35 is provided inside the partition cover 34, and the rotating wheel 35 is made of a magnet, and three groups of protrusions are provided on the rotating wheel 35, and the distances between the three groups of protrusions are consistent, and the rotating wheel 35 is sleeved on the central shaft 21 and moves with the central shaft 21;

[0041] In the circulation of the oil, firstly, the oil in the power distribution housing 12 is output through the circulation pipe 31 at the bottom end of the power distribution housing 12, and is output to the inside of the sealing cover 36. When the central shaft 21 rotates, the impeller 35 is driven to rotate, and the oil in the sealing cover 36 is circulated and pushed forward by the rotation of the impeller 35. After the oil enters the inside of the sealing cover 36, as the impeller 35 rotates, the oil is stirred inside. During the stirring, metal impurities cannot pass through the separation cover 34, and will adhere to the outer wall of the separation cover 34 under the attraction of the magnet of the impeller 35. At this time, part of the metal debris is also processed. After the metal debris is eliminated, the oil can be transported to the inside of the power distribution housing 12 again through the guidance of the circulation pipe 31. The oil tilts down from the circulation pipe 31 at the top of the power distribution housing 12, and the spilled oil is poured onto the second gear 24. The pouring from bottom to top can wash away the impurities on the second gear 24.

[0042] A heat absorption tube 33 is connected to the surface of the driven gear 16. The heat absorption tube 33 is arranged in a spiral shape. The interior of the heat absorption tube 33 is arranged to be hollow. One end of the heat absorption tube 33 is connected to an inlet tube 37, and the other end is connected to an outlet tube 38. The inlet tube 37 and the outlet tube 38 pass through the interior of the driven gear 16 and extend to the interior of the sealing cover 36. The inlet tube 37 is located on the outside of the partition cover 34, and the outlet tube 38 is located on the inside of the partition cover 34. The surface of the heat absorption tube 33 is connected to the suction tube 32. The suction tube 32 is wrapped around the outside of the heat absorption tube 33, and the two are tightly fitted together. The suction tube 32 is arranged on the heat absorption tube 33 in a divergent shape.

[0043] The separation cover 34 is provided with holes for the filtered oil to pass through. The filtered oil is transported to the interior of the power distribution housing 12 through the outlet pipe 38 .

[0044] In addition, during the meshing process between the first gear 22 and the second gear 24, the internal temperature will rise. The temperature rise can be suppressed by circulating the oil inside. In order to further improve this effect, the oil circulates inside through the heat absorption pipe 33, the inlet pipe 37 and the outlet pipe 38. During the circulation, the heat inside the power distribution housing 12 is taken away. Since the suction pipe 32 passes through the interior of the driven gear 16 and is embedded in the interior of the sealing cover 36, a magnet is provided on the part that passes through the driven gear 16 and passes through the sealing cover 36. The metal debris inside the power distribution housing 12 can be transported to the interior of the sealing cover 36 through the suction pipe 32. Since a rotating wheel 35 is provided inside the sealing cover 36, the flow direction of the metal debris can also be guided under the attraction of magnetic force to avoid the random circulation of metal debris inside and cause internal wear.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A power distribution differential assembly for a disabled mobility vehicle, comprising a mounting seat (11), characterized in that: A power distribution housing (12) is installed on one side of the mounting seat (11), and a cover (15) is provided on the front side of the power distribution housing (12), and the cover (15) is used to seal the power distribution housing (12); A fixed rod (13) is connected to the disabled vehicle via a mounting frame, a driving gear (14) is mounted on the fixed rod (13), a driven gear (16) is arranged on one side of the power distribution housing (12), and the power distribution housing (12) and the driven gear (16) are rotationally connected; A differential assembly (2) is embedded in the fixed rod (13), and the differential assembly (2) comprises a central shaft (21), a first gear (22) is connected to the central shaft (21), a circulating frame (23) is connected to the driven gear (16), a second gear (24) is connected to the upper and lower sides of the circulating frame (23), the second gear (24) and the first gear (22) are meshed, and a scraper rod (25) is fixedly connected to the middle position of the central shaft (21), and one side of the scraper rod (25) is attached to the second gear (24); The oil is tilted down from the circulation pipe (31) at the top of the power distribution housing (12), and the poured oil is poured onto the second gear (24), washing away the impurities on the second gear (24); The top end of the power distribution housing (12) is connected to an elimination component (3), and the elimination component (3) includes a circulation pipe (31), and the circulation pipe (31) is embedded in the interior of the power distribution housing (12), wherein two groups of circulation pipes (31) are provided, and the circulation pipe (31) located at the top end of the power distribution housing (12) is used to transport liquid inside the power distribution housing (12), and the circulation pipe (31) located at the bottom end of the power distribution housing (12) is used to output liquid from the power distribution housing (12); a sealing cover (36) is provided on the side of the driven gear (16) away from the power distribution housing (12), and the sealing cover (36) and the driven gear (16) are movably connected, and a partition cover (34) is embedded in the interior of the sealing cover (36), and a rotating wheel (35) is provided in the interior of the partition cover (34), and the rotating wheel (35) is sleeved on the central shaft (21) and moves with the central shaft (21); The interior of the driven gear (16) is embedded in the interior of the sealing cover (36), and a magnet is provided on the portion of the driven gear (16) that passes through the sealing cover (36); The partition cover (34) is configured as an annular structure, the partition cover (34) is wrapped around the outer side of the rotating wheel (35), the rotating wheel (35) is made of a magnet, and three groups of protrusions are provided on the rotating wheel (35), and the distances between the three groups of protrusions and the center of the circle are consistent; the partition cover (34) is provided with holes, and the holes are used for filtered oil to pass through, and the filtered oil is transported to the inside of the power distribution housing (12) through the outlet pipe (38); the central shaft (21) rotates to drive the rotating wheel (35), and the rotation of the rotating wheel (35) circulates and promotes the oil inside the sealing cover (36), and the oil enters the inside of the sealing cover (36), and as the rotating wheel (35) rotates, the oil is stirred inside, and metal impurities in the stirring will not be able to pass through the partition cover (34), and will adhere to the outer wall of the partition cover (34) under the attraction of the magnet of the rotating wheel (35); The metal scraps inside the power distribution housing (12) are transported to the inside of the sealing cover (36) through the suction pipe (32), and the flow direction of the metal scraps is guided under the attraction of magnetic force.

2. The power distribution differential assembly of a disabled mobility vehicle according to claim 1, characterized in that: The first gear (22), the circulation frame (23), the second gear (24) and the scraper rod (25) are embedded in the power distribution housing (12); the connection between the power distribution housing (12) and the driven gear (16) is a sealed connection; and the power distribution housing (12) stores oil for lubrication.

3. The power distribution differential assembly of a disabled mobility vehicle according to claim 1, characterized in that: The scraper rod (25) is attached to the second gear (24), and the portion attached to the second gear (24) is arranged in an arc shape.

4. The power distribution differential assembly of a disabled mobility vehicle according to claim 1, characterized in that: A heat absorption tube (33) is connected to the surface of the driven gear (16); the heat absorption tube (33) is arranged in a spiral shape; the interior of the heat absorption tube (33) is arranged to be hollow; one end of the heat absorption tube (33) is connected to an inlet tube (37) and the other end is connected to an outlet tube (38).

5. The power distribution differential assembly of a disabled mobility vehicle according to claim 4, characterized in that: The inlet pipe (37) and the outlet pipe (38) penetrate the interior of the driven gear (16) and extend to the interior of the sealing cover (36); the inlet pipe (37) is located outside the partition cover (34), while the outlet pipe (38) is located inside the partition cover (34).

6. The power distribution differential assembly of a disabled mobility vehicle according to claim 5, characterized in that: The surface of the heat absorbing tube (33) is connected to an absorption tube (32), and the absorption tube (32) is wrapped around the outside of the heat absorbing tube (33), and the two are tightly fitted together. The absorption tube (32) is arranged on the heat absorbing tube (33) in a divergent shape.

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