Abs gear box

Abstract

The utility model provides a kind of ABS gear box, including motor, outer sleeve, inner gear ring, output frame, planetary gear and driving wheel, motor and inner gear ring are all set in outer sleeve, output frame is set in inner gear ring, driving wheel is set on the output shaft of motor, planetary gear is connected with output frame, planetary gear is respectively connected with the inner tooth part transmission of driving wheel and inner gear ring, to drive output frame rotation in turn, output frame includes integrally-formed main body, connecting shaft and power output part, power output part and connecting shaft are respectively set in the opposite sides of main body, planetary gear is connected in the outer side of connecting shaft;The utility model has the advantages of stable structure, convenient assembly and low cost.

Description

Technical Field

[0001] This utility model relates to the field of gearboxes, specifically to an ABS gearbox. Background Technology

[0002] With the increasing safety requirements in the global two-wheeled vehicle market (such as electric bicycles and motorcycles), the adoption rate of ABS (Anti-lock Braking System), as an important safety feature, continues to rise, directly driving the growth in demand for ABS gearboxes. The ABS gearbox is one of the core components of an ABS system.

[0003] Currently, the output carrier and planetary gear connecting shaft in existing ABS gearboxes are typically designed as separate units, fixed by welding or riveting. This structure not only complicates the production and assembly process but also easily leads to the accumulation of assembly errors, causing a decrease in the positioning accuracy of the connecting shaft. Under the high-frequency power transmission and impact conditions of ABS gearboxes, this can easily cause problems such as misalignment, increased transmission noise, uneven transmission, or even jamming. Furthermore, existing ABS gearboxes generally have both a planetary carrier and an output carrier, with the planetary carrier driving the output carrier's rotation. This results in a large number of components, which is not conducive to simplifying assembly processes and reducing production costs. Utility Model Content

[0004] The purpose of this invention is to provide an ABS gearbox that is structurally stable, easy to assemble, and low in cost.

[0005] To achieve the above objectives, this utility model provides an ABS gearbox, comprising a motor, an outer casing, an internal gear ring, an output frame, planetary gears, and a drive gear. The motor and the internal gear ring are both housed within the outer casing, the output frame is housed within the internal gear ring, and the drive gear is mounted on the output shaft of the motor. The planetary gears are connected to the output frame and are respectively connected to the drive gear and the internal gear portion of the internal gear ring, thereby driving the output frame to rotate. The output frame comprises an integrally formed main body, a connecting shaft, and a power output portion. The power output portion and the connecting shaft are respectively located on opposite sides of the main body, and the planetary gears are connected to the outside of the connecting shaft.

[0006] As can be seen from the above scheme, by setting the planetary gears to be directly connected to the output frame, the planetary carrier is eliminated compared with the existing technology, thereby simplifying the assembly process and reducing production costs. The output frame adopts an integrated molding design, which not only enhances its structural strength and integrity, but also eliminates the separate processing and assembly of the connecting shaft, reducing process and labor costs. At the same time, this design is conducive to controlling assembly errors, improving production efficiency, and is more suitable for mass production. A further option is to use powder metallurgy to integrally form the output frame.

[0007] As can be seen from the above scheme, the densification of metal powder is achieved by high-temperature sintering, which forms a strong metallurgical bond between the pin and the main body. Compared with traditional assembly methods such as welding and riveting, this method effectively avoids the problem of stress concentration at the connection point, improves the overall structural strength, and can better withstand the high-frequency power transmission and impact loads of the ABS system.

[0008] A further option is that the outer jacket includes a sheet body connected end to end, with a locking platform and a locking groove respectively provided at each end of the sheet body, and the locking platform and the locking groove engaging with each other; the shape of the locking platform and the locking groove can be set to one of the following: dovetail shape, mushroom shape, or I-shaped.

[0009] As can be seen from the above solution, by connecting the two ends of the sheet to form a sleeve structure with both ends connected, this utility model can significantly reduce manufacturing costs compared with the traditional stretch-formed jacket. At the same time, by using the concave and convex fit of the clamping platform and the clamping groove, the two ends can be quickly positioned and connected, improving assembly efficiency. This utility model focuses more on achieving high strength and precision fixation through mechanical locking, meeting the requirements of ABS system for stability and signal accuracy, while the stretch-formed jacket is relatively limited in terms of strength and adaptability to working conditions.

[0010] A further embodiment is that the internal gear ring includes a cover body and an enclosure body. The cover body has a mounting hole in the middle, and the power output part is located in the mounting hole. The enclosure body is located on the bottom wall of the cover body and is located inside the outer sleeve. The edge of the cover body protrudes beyond the outer sleeve, and a limiting groove is provided on the edge of the cover body. One end of the outer sleeve is provided with an ear, which is located in the limiting groove and can be bent and deformed into the limiting groove.

[0011] As can be seen from the above scheme, by setting an ear that can be bent and deformed into the limiting groove, the internal gear ring can be effectively fixed. This structure can not only prevent the internal gear ring from rotating, but also prevent the outer sleeve from separating from the internal gear ring, thus improving the overall stability and reliability.

[0012] A further option is to provide multiple protrusions on the outer peripheral wall of the enclosure, with the protrusions arranged circumferentially along the enclosure and abutting against the inner wall of the outer jacket.

[0013] As can be seen from the above scheme, the contact between the convex part and the inner wall of the outer sleeve facilitates the smooth insertion of the inner gear ring into the outer sleeve. To ensure that the surface of the convex part always remains in contact with the inner wall of the outer sleeve, the convex part can be slightly pushed outwards from the outer sleeve, thereby enhancing the installation stability between the inner gear ring and the outer sleeve and effectively preventing relative rotation and sliding between the two.

[0014] A further embodiment is that the ABS gearbox also includes a base, a first washer, and a second washer. The base is mounted on the motor and positioned below the planetary gears. The first washer is positioned between the planetary gears and the base, and the second washer is positioned between the planetary gears and the main body.

[0015] As can be seen from the above scheme, by setting the first washer and the second washer, vibration can be effectively absorbed and operating noise can be significantly reduced.

[0016] A further embodiment is that the base is provided with a first central hole, a first boss and a stepped groove from the inside to the outside; the lower part of the internal gear ring is supported in the stepped groove, and the first boss is embedded in the inner side of the internal gear ring; the motor is provided with a second boss, which is located in the first central hole.

[0017] As can be seen from the above scheme, by embedding the first boss into the inner side of the internal gear ring, the internal gear ring can be accurately positioned and reliably fixed, effectively preventing it from rotating.

[0018] A further option is to provide a protrusion on the outer periphery of the first washer, which is embedded between two adjacent teeth of the inner tooth portion.

[0019] As can be seen from the above scheme, the protrusion can play a positioning role and prevent the first washer from rotating.

[0020] A further option is to have a through hole in the second washer, through which the connecting shaft passes.

[0021] As can be seen from the above scheme, the perforation can play a positioning role and prevent the second washer from rotating.

[0022] A further option is to set multiple connecting shafts, which are arranged circumferentially on the bottom wall of the main body; the number of planetary gears matches the number of connecting shafts, with each planetary gear corresponding to a connecting shaft, and multiple planetary gears simultaneously connected to the drive gear transmission. Attached Figure Description

[0023] Figure 1 This is a structural diagram of an embodiment of the present utility model.

[0024] Figure 2 This is a cross-sectional view of an embodiment of the present utility model.

[0025] Figure 3 This is an exploded view of an embodiment of the present invention.

[0026] Figure 4 This is a structural diagram of the output frame in an embodiment of this utility model.

[0027] Figure 5 This is a structural diagram of the outer casing in an embodiment of this utility model.

[0028] Figure 6 This is a structural diagram of the internal gear ring in an embodiment of this utility model.

[0029] Figure 7 This is a structural diagram of the first washer in an embodiment of this utility model.

[0030] Figure 8 This is a structural diagram of the base in an embodiment of this utility model.

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0032] See Figures 1 to 4 The ABS gearbox provided in this embodiment includes a motor 1, a drive wheel 2, a base 3, a first washer 4, a second washer 5, an internal gear ring 6, an output frame 7, an outer sleeve 8, and three planetary gears 9.

[0033] The motor 1, base 3, and internal gear ring 6 are all housed within the outer casing 8. The base 3 is mounted on the motor 1, and the internal gear ring 6 is mounted on the base 3. From the inside out, the base 3 has a first central hole 31, a first boss 32, and a stepped groove 33. The lower part of the internal gear ring 6 is supported within the stepped groove 33, and the first boss 32 is embedded inside the internal gear ring 6. The motor 1 has a second boss 11, which is located within the first central hole 31.

[0034] The output frame 7 is housed within the internal gear ring 6. The output frame 7 comprises an integrally formed main body 71, a power output section 72, and three connecting shafts 73. The output frame 7 is integrally formed using powder metallurgy. The power output section 72 protrudes from the top wall of the main body 71, and the connecting shafts 73 protrude from the bottom wall of the main body 71. The multiple connecting shafts 73 are arranged evenly at circumferential intervals. Planetary gears 9 are correspondingly positioned to the connecting shafts 73, connected to the outside of the connecting shafts 73, and positioned above the base 3.

[0035] The first washer 4 is disposed between the planetary gear 9 and the base 3, and the second washer 5 is disposed between the planetary gear and the main body 71 of the output frame 7.

[0036] The driving gear 2 is mounted on the output shaft 12 of the motor 1, and the planetary gears 9 are respectively connected to the driving gear 2 and the internal gear portion 622 of the internal gear ring 6. When the motor 1 drives the driving gear 2 to rotate, the driving gear 2 simultaneously drives the three planetary gears 9 to rotate. Since the planetary gears 9 are also connected to the internal gear ring 6 and the internal gear ring 6 is fixed, the planetary gears 9 can drive the output frame 7 to rotate together under the cooperation of the internal gear ring 6.

[0037] The ABS gearbox in this embodiment also includes a drive shaft 10 and a bearing 11. One end of the drive shaft 10 is connected to the power output unit 72, and the other end of the drive shaft 10 protrudes upward. The bearing 11 is sleeved in the middle of the drive shaft 10.

[0038] See Figure 5The outer casing 8 includes a sheet body, the two ends of which are connected to form a cylindrical structure extending through both ends. The first end of the sheet body has several locking platforms 81, and the second end has several locking slots 82. The locking platforms 81 and the locking slots 82 correspond one-to-one and fit together. The shapes of the locking platforms 81 and the locking slots 82 can all be one of the following: dovetail shape, mushroom shape, and I-shape; in this embodiment, the dovetail shape is preferred.

[0039] The outer jacket 8 has three ears 83 at one end.

[0040] See Figure 6 and combined Figure 1 The internal gear ring 6 includes a cover portion 61 and an enclosing portion 62. A mounting hole 611 is formed in the center of the cover portion 61, and a power output portion 72 is disposed within the mounting hole 611. The enclosing portion 62 is disposed on the bottom wall of the cover portion 61, and is coaxially arranged with the mounting hole 611. An internal gear portion 622 is disposed on the inner wall of the enclosing portion 62. The enclosing portion 62 is disposed inside the outer sleeve 8, and the edge of the cover portion 61 protrudes beyond the outer sleeve 8. Three limiting grooves 612 are formed on the edge of the cover portion 61, and inclined surfaces 613 are provided within the limiting grooves 612.

[0041] The ear part 83 is disposed in the limiting groove 612 and can be bent and deformed into the limiting groove 612, so that the ear part 83 contacts or is adjacent to the inclined surface 613.

[0042] The outer peripheral wall of the enclosure 62 is provided with a plurality of protrusions 621, which are arranged circumferentially along the enclosure 62 and are located on the same circle, the diameter of which is slightly larger than the inner diameter of the outer sleeve 8. When the enclosure 62 is inserted into the outer sleeve 8, the protrusions 621 abut against the inner wall of the outer sleeve 8. The plurality of protrusions 621 can push the outer sleeve 8 outward, and the inward elastic force of the outer sleeve 8 is used to lock the inner gear ring 6, preventing the inner gear ring 6 from disengaging and rotating.

[0043] See Figure 7 and combined Figure 2 The first washer 4 and the second washer 5 are both sleeved on the outside of the output shaft 12 of the motor 1. The outer periphery of the first washer 4 is provided with a plurality of protrusions 41. The protrusions 41 protrude from the outer periphery of the first washer 4. The protrusions 41 can be embedded between two adjacent teeth of the inner tooth portion 622 of the inner tooth ring 6 to restrict the rotation of the first washer 4.

[0044] The second washer 5 has three through holes, which correspond one-to-one with the connecting shaft 73, and the connecting shaft 73 can pass through the corresponding through holes.

[0045] See Figure 8 and combined Figure 2The bottom wall of the base 3 is provided with several arc-shaped grooves 34. The arc-shaped grooves 34 are located below the first protrusion 32. This can reduce the weight of the base 3 and the amount of material used in the base 3 while ensuring the structural strength of the base 3 itself, thus saving costs.

[0046] In summary, by setting the planetary gear 9 to be directly connected to the output frame 7, this utility model eliminates the need for the planetary carrier compared to the prior art, thereby simplifying the assembly process and reducing production costs. The output frame 7 adopts an integrated molding design, which not only enhances its structural strength and integrity, but also eliminates the separate processing and assembly of the connecting shaft 73, reducing process and labor costs. At the same time, this design is conducive to controlling assembly errors, improving production efficiency, and is more suitable for large-scale mass production.

[0047] Finally, it should be emphasized that the above are only preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. 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. An ABS gearbox, comprising a motor, an outer casing, an internal gear ring, an output frame, planetary gears, and a drive gear, wherein the motor and the internal gear ring are both disposed within the outer casing, the output frame is disposed within the internal gear ring, the drive gear is disposed on the output shaft of the motor, the planetary gears are connected to the output frame, and the planetary gears are respectively connected to the drive gear and the internal gear portion of the internal gear ring for transmission, thereby driving the output frame to rotate, characterized in that: The output frame includes an integrally formed main body, a connecting shaft, and a power output part. The power output part and the connecting shaft are respectively disposed on opposite sides of the main body, and the planetary gear is connected to the outside of the connecting shaft.

2. The ABS gearbox according to claim 1, characterized in that: The output frame is integrally formed using powder metallurgy.

3. The ABS gearbox according to claim 1, characterized in that: The outer jacket includes a sheet body with both ends connected end to end. Each end of the sheet body is provided with a locking platform and a locking slot, and the locking platform and the locking slot are in a concave-convex fit. The shape of both the card holder and the card slot can be set to one of the following: swallowtail shape, mushroom shape, or I-shaped.

4. The ABS gearbox according to claim 1, characterized in that: The internal gear ring includes a cover portion and an enclosure portion. The cover portion has a mounting hole in the middle and the power output portion is disposed in the mounting hole. The enclosure portion is disposed on the bottom wall of the cover portion and is disposed on the inner side of the outer sleeve. The edge of the cover portion protrudes beyond the outer sleeve and a limiting groove is provided on the edge of the cover portion. One end of the outer jacket is provided with an ear, which is located in the limiting groove and can be bent and deformed into the limiting groove.

5. The ABS gearbox according to claim 4, characterized in that: The outer peripheral wall of the enclosure is provided with a plurality of protruding parts, which are arranged circumferentially along the enclosure and abut against the inner wall of the outer jacket.

6. The ABS gearbox according to claim 1, characterized in that: The ABS gearbox also includes a base, a first washer, and a second washer. The base is disposed on the motor and below the planetary gears. The first washer is disposed between the planetary gears and the base. The second washer is disposed between the planetary gears and the main body.

7. The ABS gearbox according to claim 6, characterized in that: The base is provided with a first central hole, a first boss and a stepped groove from the inside to the outside; the lower part of the internal gear ring is supported in the stepped groove and the first boss is embedded in the inner side of the internal gear ring. The motor is provided with a second boss portion, which is disposed inside the first central hole.

8. The ABS gearbox according to claim 6, characterized in that: The outer periphery of the first washer is provided with a protrusion, which is embedded between two adjacent teeth of the inner tooth portion.

9. The ABS gearbox according to claim 6, characterized in that: The second washer has a through hole, and the connecting shaft passes through the through hole.

10. The ABS gearbox according to any one of claims 1 to 9, characterized in that: The number of connecting shafts is set to multiple, and the multiple connecting shafts are arranged circumferentially on the bottom wall of the main body; The number of planetary gears matches the number of connecting shafts, and each planetary gear is arranged in a one-to-one correspondence with a connecting shaft. Multiple planetary gears are simultaneously connected to the drive wheel for transmission.

Images