Planetary gearbox

Abstract

The invention relates to the technical field of gearboxes, and particularly discloses a planetary gearbox which comprises an input spline shaft and an output spline shaft. The five-gear input device comprises a five-gear gear, a plurality of fifth thrust balls, a single spiral gear, a fifth planet carrier and a five-gear right planet carrier, the five-gear gear is installed on the outer surface of the input spline shaft, the plurality of fifth thrust balls are installed on the outer walls of the two sides of the five-gear gear respectively, and the single spiral gear is installed on the single spiral gear. The number of the single spiral gears is two. The six-gear input devices are closely arranged on the input spline shaft, and the six-gear output devices are closely arranged on the output spline shaft, so that the structure of the gear speed changing box is more compact successfully, the occupied space of the gear speed changing box is remarkably reduced, the weight of a vehicle is reduced, and the service life of the vehicle is prolonged. And the average transmission efficiency of the direct-driven vehicle is greatly improved, so that the overall performance of the direct-driven vehicle is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of gearboxes, and in particular relates to a planetary gearbox. Background Art

[0002] A gearbox is a device that changes the speed ratio and direction of movement. It is used in automobiles, tractors, ships, machine tools and various machines to change the torque, speed and direction of movement transmitted from the driving shaft to the driven shaft according to different working conditions. Since the output speed of the engine is very high, the maximum power and maximum torque appear in a certain speed range. In order to maximize the performance of the engine, there must be a set of speed change devices to coordinate the engine speed and the actual driving speed of the wheels. The transmission can produce different speed ratios between the engine and the wheels during vehicle driving, and the engine can work at its best power performance state by shifting gears.

[0003] At present, the traditional dual-axis transmission increases the weight and space occupied by the vehicle due to its insufficiently compact structure. At the same time, the average transmission efficiency of direct-drive vehicles is low, which limits its performance. More significantly, the shifting process of the traditional transmission is prone to a sense of frustration, which not only reduces driving comfort, but also aggravates the wear of the internal gears of the gearbox, which can easily lead to gear damage in the long run, thereby increasing maintenance costs. In addition, the impact generated when downshifting is particularly obvious, which not only brings additional burden to the vehicle's power system, but may also cause mechanical safety failures, posing a potential threat to driving safety. Summary of the invention

[0004] The object of the present invention is to provide a planetary gear transmission to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A planetary gearbox, comprising:

[0007] Input spline shaft and output spline shaft;

[0008] A five-speed input device, the five-speed input device comprising a five-speed gear, a fifth thrust ball, a single helical gear, a fifth planet carrier and a five-speed right planet carrier, the five-speed gear being mounted on the outer surface of the input spline shaft, a plurality of fifth thrust balls being provided, and the plurality of fifth thrust balls being respectively installed on the outer walls on both sides of the five-speed gear, two single helical gears being provided, and the two single helical gears being installed on the upper outer surface of the five-speed gear, the fifth planet carrier being installed on one outer wall of the five-speed gear, and the five-speed right planet carrier being installed on the other outer wall of the five-speed gear;

[0009] A reverse gear input device, the reverse gear input device comprises a reverse gear outer ring gear, a reverse gear thrust ball, a reverse gear middle ring gear, a reverse gear sun gear, a reverse gear planetary gear and a reverse gear left planet carrier, the reverse gear thrust ball and the reverse gear planetary gear are both provided in plurality, and the plurality of reverse gear thrust balls are respectively mounted on the outer walls on both sides of the reverse gear outer ring gear, the reverse gear middle ring gear is mounted inside the reverse gear outer ring gear, the reverse gear sun gear is mounted inside the reverse gear middle ring gear, and the reverse gear sun gear is mounted on the outer surface of the input spline shaft, the plurality of reverse gear planetary gears are respectively mounted between the reverse gear outer ring gear and the reverse gear middle ring gear and between the reverse gear middle ring gear and the reverse gear sun gear, and the reverse gear left planet carrier is mounted on the outer wall on one side of the reverse gear outer ring gear;

[0010] A five-speed output device is installed on the outer surface of the output spline shaft, and the five-speed output device receives power from the five-speed input device and is responsible for outputting it to the wheels.

[0011] Preferably, a fourth-gear input device is installed at one end of the fifth-gear input device, a third-gear input device is installed at the other end of the fourth-gear input device, a second-gear input device is installed at the other end of the third-gear input device, and a first-gear input device is installed at the other end of the second-gear input device; a fourth-gear output device is installed at one end of the fifth-gear output device, a third-gear output device is installed at the other end of the fourth-gear output device, a second-gear output device is installed at the other end of the third-gear output device, and a first-gear output device is installed at the other end of the second-gear output device; a reverse-gear output device is installed at the other end of the first-gear output device, a first deep groove ball bearing is installed on the outer wall of the reverse-gear output device, and a second deep groove ball bearing is installed on the outer wall of the fifth-gear input device and the outer wall of the reverse-gear input device.

[0012] Preferably, the fourth gear input device includes a fourth gear ring gear, a fourth thrust ball, a fourth gear sun gear, a fourth gear planetary gear and a fourth planet carrier, a plurality of fourth thrust balls are provided, and the plurality of fourth thrust balls are respectively mounted on the outer walls on both sides of the fourth gear ring gear, the fourth gear sun gear is mounted inside the fourth gear ring gear, and the fourth gear sun gear is mounted on the outer surface of the input spline shaft, the fourth gear planetary gear is mounted between the fourth gear ring gear and the fourth gear sun gear, and the fourth planet carrier is mounted on the outer wall on one side of the fourth gear ring gear.

[0013] Preferably, the third gear input device includes a third gear ring gear, a third thrust ball, a third gear sun gear, a third gear planetary gear and a third planet carrier, a plurality of third thrust balls are provided, and the plurality of third thrust balls are respectively mounted on the outer walls on both sides of the third gear ring gear, the third gear sun gear is mounted inside the third gear ring gear, and the third gear sun gear is mounted on the outer surface of the input spline shaft, the third gear planetary gear is mounted between the third gear ring gear and the third gear sun gear, and the third planet carrier is mounted on the outer wall on one side of the third gear ring gear.

[0014] Preferably, the second gear input device includes a second gear ring gear, a second thrust ball, a second gear sun gear, a second gear planetary gear and a second planet carrier, a plurality of second thrust balls are provided, and the plurality of second thrust balls are respectively mounted on the outer walls on both sides of the second gear ring gear, the second gear sun gear is mounted inside the second gear ring gear, and the second gear sun gear is mounted on the outer surface of the input spline shaft, the second gear planetary gear is mounted between the second gear ring gear and the second gear sun gear, and the second planet carrier is mounted on the outer wall on one side of the second gear ring gear.

[0015] Preferably, the first gear input device includes a first gear ring gear, a first thrust ball, a first gear sun gear, a first gear planetary gear and a first planet carrier, a plurality of first thrust balls are provided, and the plurality of first thrust balls are respectively mounted on the outer walls on both sides of the first gear ring gear, the first gear sun gear is mounted inside the first gear ring gear, and the first gear sun gear is mounted on the outer surface of the input spline shaft, the first gear planetary gear is mounted between the first gear ring gear and the first gear sun gear, and the first planet carrier is mounted on the outer wall on one side of the first gear ring gear.

[0016] Preferably, annular sliding grooves are provided on both side outer walls of the first planet carrier, on both side outer walls of the second planet carrier, on both side outer walls of the third planet carrier, on both side outer walls of the fourth planet carrier, on both side outer walls of the fifth planet carrier, on the inner wall of the fifth gear right planet carrier and on the inner wall of the reverse gear left planet carrier.

[0017] Preferably, the five-speed output device includes an inner spline sleeve, a friction plate, a sliding sleeve, an output gear, a gear pressure plate and a pressure plate sleeve, the inner spline sleeve is installed on the outer surface of the output spline shaft, the friction plate is installed on the inner side of the inner spline sleeve, the sliding sleeve is installed on the outer surface of the inner spline sleeve, the output gear is installed on the outer surface of the sliding sleeve, the gear pressure plate is installed on the inner side of the output gear, and the pressure plate sleeve is installed on the inner side of the gear pressure plate.

[0018] Preferably, a groove is provided on the inner side of the inner spline sleeve, the outer surface of the output gear meshes with the outer surface of the corresponding fifth-speed gear, the side of the gear pressure plate close to the output gear is set as a concave structure, and a plurality of heat dissipation openings are provided on the gear pressure plate.

[0019] Preferably, the overall structure of the five-speed output gear is consistent with the overall structure of the fourth-speed output gear, the overall structure of the third-speed output gear, the overall structure of the second-speed output gear, the overall structure of the first-speed output gear and the overall structure of the reverse-speed output gear.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) The present invention successfully makes the structure of the gear transmission more compact by providing an input spline shaft and an output spline shaft, by closely arranging the input devices of the six gears on the input spline shaft, and by closely arranging the output devices of the six gears on the output spline shaft. This design not only significantly reduces the space occupied by the gear transmission and reduces the weight of the vehicle, but also greatly improves the average transmission efficiency of the direct-drive vehicle, thereby improving its overall performance.

[0022] (2) The present invention sets a plurality of input devices on the outer surface of the input spline shaft, and realizes the closed transmission design of the planetary gear through the precise meshing transmission between the planetary gear and the sun gear and the ring gear. This design not only significantly improves the meshing effect of the gears, but also greatly reduces the phenomenon of gear rattling in the gear box during driving, thereby ensuring driving safety, thereby improving the smoothness of the transmission shifting process, and enhancing driving comfort.

[0023] (3) The present invention arranges a plurality of output devices on the outer surface of the output spline shaft. By designing the six output devices as a clutch structure with independent gear positions, the problem of gear damage caused by non-smooth gear shifting in traditional transmissions can be effectively solved, thereby significantly reducing maintenance costs. In addition, in the face of emergency or special driving situations, this design can quickly respond to the driver's immediate needs for skip-gear shifting or forced gear shifting, greatly improving the vehicle's flexibility and ability to cope with complex road conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A perspective view of the present invention;

[0025] Figure 2 It is a left side view of the present invention;

[0026] Figure 3 A top view of the present invention;

[0027] Figure 4 An exploded view of the present invention;

[0028] Figure 5 is a front cross-sectional view of the present invention;

[0029] Figure 6 1 is a cross-sectional view and a plan view of the first planet carrier of the present invention;

[0030] Figure 7 It is a cross-sectional view and a plan view of the internal spline sleeve of the present invention;

[0031] Figure 8 It is a cross-sectional view and a plan view of the gear pressure plate of the present invention;

[0032] In the figure: 1, input spline shaft; 2, output spline shaft; 3, fifth gear input device; 4, fourth gear input device; 5, third gear input device; 6, second gear input device; 7, first gear input device; 8, reverse gear input device; 9, fifth gear output device; 10, fourth gear output device; 11, third gear output device; 12, second gear output device; 13, first gear output device; 14, reverse gear output device; 15, first deep groove ball bearing; 16, second deep groove ball bearing;

[0033] 31. Fifth gear; 32. Fifth thrust ball; 33. Single helical gear; 34. Fifth planet carrier; 35. Fifth gear right planet carrier;

[0034] 41. 4th gear ring gear; 42. 4th thrust ball; 43. 4th gear sun gear; 44. 4th gear planetary gear; 45. 4th planet carrier;

[0035] 51. 3rd gear ring gear; 52. 3rd thrust ball; 53. 3rd gear sun gear; 54. 3rd gear planetary gear; 55. 3rd planet carrier;

[0036] 61. Second gear ring gear; 62. Second thrust ball; 63. Second gear sun gear; 64. Second gear planetary gear; 65. Second planet carrier;

[0037] 71. 1st gear ring gear; 72. 1st thrust ball; 73. 1st gear sun gear; 74. 1st gear planetary gear; 75. 1st planet carrier;

[0038] 81. Reverse gear outer ring gear; 82. Reverse gear thrust ball; 83. Reverse gear middle ring gear; 84. Reverse gear sun gear; 85. Reverse gear planetary gear; 86. Reverse gear left planetary carrier;

[0039] 91. Internal spline bushing; 92. Friction plate; 93. Sliding bushing; 94. Output gear; 95. Gear pressure plate; 96. Pressure plate sleeve. DETAILED DESCRIPTION

[0040] 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.

[0041] Embodiment 1:

[0042] See also Figures 1 to 8 As shown, a planetary gearbox comprises:

[0043] Input spline shaft 1 and output spline shaft 2;

[0044] A fifth-gear input device 3, the fifth-gear input device 3 comprises a fifth-gear gear 31, a fifth thrust ball 32, a single helical gear 33, a fifth planet carrier 34 and a fifth-gear right planet carrier 35, the fifth-gear gear 31 is mounted on the outer surface of the input spline shaft 1, a plurality of fifth thrust balls 32 are provided, and the plurality of fifth thrust balls 32 are respectively mounted on the outer walls on both sides of the fifth-gear gear 31, two single helical gears 33 are provided, and the two single helical gears 33 are both mounted on the upper outer surface of the fifth-gear gear 31, the fifth planet carrier 34 is mounted on one outer wall of the fifth-gear gear 31, and the fifth-gear right planet carrier 35 is mounted on the other outer wall of the fifth-gear gear 31;

[0045] A reverse gear input device 8, which includes a reverse gear outer ring gear 81, a reverse gear thrust ball 82, a reverse gear middle ring gear 83, a reverse gear sun gear 84, a reverse gear planetary gear 85 and a reverse gear left planet carrier 86. A plurality of reverse gear thrust balls 82 and a plurality of reverse gear planetary gears 85 are provided, and a plurality of reverse gear thrust balls 82 are respectively mounted on the outer walls of both sides of the reverse gear outer ring gear 81, the reverse gear middle ring gear 83 is mounted inside the reverse gear outer ring gear 81, the reverse gear sun gear 84 is mounted inside the reverse gear middle ring gear 83, and the reverse gear sun gear 84 is mounted on the outer surface of the input spline shaft 1, a plurality of reverse gear planetary gears 85 are respectively mounted between the reverse gear outer ring gear 81 and the reverse gear middle ring gear 83 and between the reverse gear middle ring gear 83 and the reverse gear sun gear 84, and the reverse gear left planet carrier 86 is mounted on the outer wall of one side of the reverse gear outer ring gear 81;

[0046] The fifth-gear output device 9 is installed on the outer surface of the output spline shaft 2, and the fifth-gear output device 9 receives power from the fifth-gear input device 3 and is responsible for outputting it to the wheels.

[0047] Depend on Figures 1 to 3 It can be seen that a fourth-gear input device 4 is installed at one end of the fifth-gear input device 3, a third-gear input device 5 is installed at the other end of the fourth-gear input device 4, a second-gear input device 6 is installed at the other end of the third-gear input device 5, a first-gear input device 7 is installed at the other end of the second-gear input device 6, a fourth-gear output device 10 is installed at one end of the fifth-gear output device 9, a third-gear output device 11 is installed at the other end of the fourth-gear output device 10, a second-gear output device 12 is installed at the other end of the third-gear output device 11, a first-gear output device 13 is installed at the other end of the second-gear output device 12, a reverse-gear output device 14 is installed at the other end of the first-gear output device 13, a first deep groove ball bearing 15 is installed at the outer wall of the reverse-gear output device 14, and a second deep groove ball bearing 16 is installed at the outer wall of the fifth-gear input device 3 and the outer wall of the reverse-gear input device 8.

[0048] As can be seen from the above, by closely arranging and installing the fifth gear input device 3, the fourth gear input device 4, the third gear input device 5, the second gear input device 6, the first gear input device 7 and the reverse gear input device 8 on the input spline shaft 1, and at the same time, closely arranging and installing the fifth gear output device 9, the fourth gear output device 10, the third gear output device 11, the second gear output device 12, the first gear output device 13 and the reverse gear output device 14 on the output spline shaft 2, this design successfully makes the structure of the gear transmission more compact. This innovation not only significantly reduces the space occupied by the gear transmission and effectively reduces the weight of the vehicle, but also greatly improves the average transmission efficiency of the direct-drive vehicle through the efficient transmission between the six gear input devices and the six gear output devices, thereby comprehensively enhancing its overall performance.

[0049] Embodiment 2:

[0050] refer to Figures 4 to 6 As shown, the fourth gear input device 4 includes a fourth gear ring gear 41, a fourth thrust ball 42, a fourth gear sun gear 43, a fourth gear planetary gear 44 and a fourth planet carrier 45. A plurality of fourth thrust balls 42 are provided, and the plurality of fourth thrust balls 42 are respectively mounted on the outer walls on both sides of the fourth gear ring gear 41. The fourth gear sun gear 43 is mounted inside the fourth gear ring gear 41, and the fourth gear sun gear 43 is mounted on the outer surface of the input spline shaft 1. The fourth gear planetary gear 44 is mounted between the fourth gear ring gear 41 and the fourth gear sun gear 43. The fourth planet carrier 45 is mounted on the outer wall on one side of the fourth gear ring gear 41.

[0051] The third gear input device 5 includes a third gear ring gear 51, a third thrust ball 52, a third gear sun gear 53, a third gear planetary gear 54 and a third planet carrier 55. A plurality of third thrust balls 52 are provided, and the plurality of third thrust balls 52 are respectively mounted on the outer walls of both sides of the third gear ring gear 51. The third gear sun gear 53 is mounted inside the third gear ring gear 51, and the third gear sun gear 53 is mounted on the outer surface of the input spline shaft 1. The third gear planetary gear 54 is mounted between the third gear ring gear 51 and the third gear sun gear 53. The third planet carrier 55 is mounted on the outer wall of one side of the third gear ring gear 51.

[0052] The second gear input device 6 comprises a second gear ring gear 61, a second thrust ball 62, a second gear sun gear 63, a second gear planetary gear 64 and a second planet carrier 65. A plurality of second thrust balls 62 are provided, and the plurality of second thrust balls 62 are respectively mounted on the outer walls on both sides of the second gear ring gear 61. The second gear sun gear 63 is mounted inside the second gear ring gear 61, and the second gear sun gear 63 is mounted on the outer surface of the input spline shaft 1. The second gear planetary gear 64 is mounted between the second gear ring gear 61 and the second gear sun gear 63. The second planet carrier 65 is mounted on the outer wall on one side of the second gear ring gear 61.

[0053] The first gear input device 7 includes a first gear ring gear 71, a first thrust ball 72, a first gear sun gear 73, a first gear planetary gear 74 and a first planet carrier 75. A plurality of first thrust balls 72 are provided, and the plurality of first thrust balls 72 are respectively mounted on the outer walls on both sides of the first gear ring gear 71. The first gear sun gear 73 is mounted inside the first gear ring gear 71, and the first gear sun gear 73 is mounted on the outer surface of the input spline shaft 1. The first gear planetary gear 74 is mounted between the first gear ring gear 71 and the first gear sun gear 73. The first planet carrier 75 is mounted on the outer wall on one side of the first gear ring gear 71.

[0054] As can be seen from the above, the closed transmission design of the planetary gears is realized through the precise meshing transmission between the fourth gear planetary gear 44 and the fourth gear sun gear 43 and the fourth gear ring gear 41, between the third gear planetary gear 54 and the third gear sun gear 53 and the third gear ring gear 51, between the second gear planetary gear 64 and the second gear sun gear 63 and the second gear ring gear 61, and between the first gear planetary gear 74 and the first gear sun gear 73 and the first gear ring gear 71. This design not only significantly improves the meshing effect of the gears, but also greatly reduces the phenomenon of gear rattling in the gear box during driving of the vehicle. The application of planetary gears makes power transmission more efficient. The gear shifting response is faster. At the same time, through the rolling of several fifth thrust balls 32, fourth thrust balls 42, third thrust balls 52, second thrust balls 62, first thrust balls 72 and reverse thrust balls 82, these thrust balls effectively support and transmit the axial thrust load applied to the shaft, thereby maintaining the stable operation of the gearbox, reducing transmission errors and vibrations, avoiding unnecessary additional burdens on the vehicle power system, and preventing the occurrence of mechanical safety failures. This series of improvements not only improves the driving safety of the entire vehicle, but also significantly enhances the smoothness of the transmission shifting process, further improving driving comfort.

[0055] Preferably, reference Figures 4 to 6 As shown, annular grooves are provided on both side outer walls of the first planet carrier 75, on both side outer walls of the second planet carrier 65, on both side outer walls of the third planet carrier 55, on both side outer walls of the fourth planet carrier 45, on both side outer walls of the fifth planet carrier 34, on the inner wall of the fifth gear right planet carrier 35 and on the inner wall of the reverse gear left planet carrier 86.

[0056] As can be seen from the above, the annular groove can limit the thrust balls, facilitate the rolling of the thrust balls therein, effectively bear and transmit the axial load, withstand the force from the axial direction, support and fix the mechanical parts, and the diameter length of the single helical gear 33, the diameter length of the fourth gear sun gear 43, the diameter length of the third gear sun gear 53, the diameter length of the second gear sun gear 63, the diameter length of the first gear sun gear 73 and the diameter length of the reverse gear sun gear 84 are successively reduced to achieve gear adjustment.

[0057] Embodiment three:

[0058] refer to Figure 4 , Figure 7 and Figure 8 As shown, the five-speed output device 9 includes an inner spline sleeve 91, a friction plate 92, a sliding sleeve 93, an output gear 94, a gear pressure plate 95 and a pressure plate sleeve 96. The inner spline sleeve 91 is installed on the outer surface of the output spline shaft 2, the friction plate 92 is installed on the inner side of the inner spline sleeve 91, the sliding sleeve 93 is installed on the outer surface of the inner spline sleeve 91, the output gear 94 is installed on the outer surface of the sliding sleeve 93, the gear pressure plate 95 is installed on the inner side of the output gear 94, and the pressure plate sleeve 96 is installed on the inner side of the gear pressure plate 95.

[0059] As can be seen from the above, the stability of power transmission is ensured by the firm connection between the inner spline sleeve 91 and the output spline shaft 2, and the friction plate 92 is cleverly used for clutch connection between the output spline shaft 2 and the output gear 94. This design enables the clutch function of the friction plate 92 to accurately control the engagement and separation of each output gear 94 with each gear ring on the input spline shaft 1. Therefore, the five-speed output device 9, the fourth-speed output device 10, the third-speed output device 11, the second-speed output device 12, the first-speed output device 13 and the reverse gear output device 14 are all designed as gear-independent clutch structures. This design effectively solves the problem of gear damage that is easily caused by unsmooth gear shifting in traditional transmissions, thereby significantly reducing maintenance costs. In addition, in the face of emergency or special driving situations, the design can quickly respond to the driver's immediate needs for skipping or forced shifting, greatly improving the vehicle's flexibility and ability to cope with complex road conditions, and providing the driver with a safer and more reliable driving experience.

[0060] Preferably, reference Figure 4 , Figure 7 and Figure 8 As shown, a groove is provided on the inner side of the inner spline sleeve 91, the outer surface of the output gear 94 meshes with the outer surface of the corresponding fifth-speed gear 31, the side of the gear pressure plate 95 close to the output gear 94 is set to a concave structure, and a plurality of heat dissipation holes are provided on the gear pressure plate 95, and the overall structure of the fifth-speed output device 9 is consistent with the overall structure of the fourth-speed output device 10, the overall structure of the third-speed output device 11, the overall structure of the second-speed output device 12, the overall structure of the first-speed output device 13 and the overall structure of the reverse gear output device 14.

[0061] As can be seen from the above, it is convenient to install the friction plate 92 in the groove of the inner spline sleeve 91, so as to realize the transmission between the input spline shaft 1 and the output spline shaft 2, which is beneficial to the firm installation and heat dissipation of the output gear 94 by the gear pressure plate 95, so that multiple output devices can realize independent clutch function.

[0062] Application examples:

[0063] This design is particularly suitable for scenarios with high requirements for vehicle performance, space utilization, weight control and ease of operation, such as high-performance racing cars, heavy engineering machinery and military vehicles; this design significantly reduces the space occupied by the gear transmission and effectively reduces the weight of the vehicle through the closely arranged six input devices and six output devices. At the same time, through the precise meshing transmission between the six input devices and the six output devices, efficient power transmission and fast gear shift response are achieved, thereby improving the vehicle's acceleration performance and gear shifting smoothness, and effectively reducing the performance loss and mechanical failure risk caused by unsmooth gear shifting. In addition, the six output devices are designed as a clutch structure with independent gear positions. This design can reduce operation delays caused by poor gear shifting or power interruption, reduce mechanical wear, and thus reduce maintenance costs, extend the service life of equipment, and improve the average transmission efficiency of the vehicle.

[0064] 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 that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A planetary gearbox, characterized in that: include: An input spline shaft (1) and an output spline shaft (2); A five-speed input device (3), the five-speed input device (3) comprising a five-speed gear (31), a fifth thrust ball (32), a single helical gear (33), a fifth planet carrier (34) and a five-speed right planet carrier (35), the five-speed gear (31) being mounted on the outer surface of the input spline shaft (1), a plurality of the fifth thrust balls (32) being provided, and the plurality of fifth thrust balls (32) being respectively mounted on the outer walls on both sides of the five-speed gear (31), two single helical gears (33) being provided, and the two single helical gears (33) being both mounted on the upper portion of the outer surface of the five-speed gear (31), the fifth planet carrier (34) being mounted on the outer wall on one side of the five-speed gear (31), and the five-speed right planet carrier (35) being mounted on the outer wall on the other side of the five-speed gear (31); A reverse gear input device (8), the reverse gear input device (8) comprising a reverse gear outer gear ring (81), a reverse gear thrust ball (82), a reverse gear middle gear ring (83), a reverse gear sun gear (84), a reverse gear planetary gear (85) and a reverse gear left planetary carrier (86), the reverse gear thrust ball (82) and the reverse gear planetary gear (85) are both provided in plurality, and the plurality of reverse gear thrust balls (82) are respectively mounted on the outer walls of both sides of the reverse gear outer gear ring (81), the reverse gear middle gear ring (83) is mounted on the The reverse gear sun gear (84) is installed inside the reverse gear middle gear ring (83) and the reverse gear sun gear (84) is installed on the outer surface of the input spline shaft (1). A plurality of reverse gear planetary gears (85) are installed between the reverse gear outer gear ring (81) and the reverse gear middle gear ring (83) and between the reverse gear middle gear ring (83) and the reverse gear sun gear (84). The reverse gear left planet carrier (86) is installed on one side outer wall of the reverse gear outer gear ring (81). A five-speed output device (9) is installed on the outer surface of the output spline shaft (2), and the five-speed output device (9) receives power from the five-speed input device (3) and is responsible for outputting it to the wheels.

2. A planetary gearbox according to claim 1, characterized in that: A fourth gear input device (4) is mounted on one end of the fifth gear input device (3), a third gear input device (5) is mounted on the other end of the fourth gear input device (4), a second gear input device (6) is mounted on the other end of the third gear input device (5), a first gear input device (7) is mounted on the other end of the second gear input device (6), a fourth gear output device (10) is mounted on one end of the fifth gear output device (9), a third gear output device (11) is mounted on the other end of the fourth gear output device (10), a second gear output device (12) is mounted on the other end of the third gear output device (11), a first gear output device (13) is mounted on the other end of the second gear output device (12), a reverse gear output device (14) is mounted on the other end of the first gear output device (13), a first deep groove ball bearing (15) is mounted on the outer wall of the reverse gear output device (14), and a second deep groove ball bearing (16) is mounted on the outer wall of the fifth gear input device (3) and the outer wall of the reverse gear input device (8).

3. A planetary gearbox according to claim 2, characterized in that: The fourth gear input device (4) comprises a fourth gear ring gear (41), a fourth thrust ball (42), a fourth gear sun gear (43), a fourth gear planetary gear (44) and a fourth planet carrier (45); a plurality of fourth thrust balls (42) are provided, and the plurality of fourth thrust balls (42) are respectively mounted on the outer walls of both sides of the fourth gear ring gear (41); the fourth gear sun gear (43) is mounted inside the fourth gear ring gear (41), and the fourth gear sun gear (43) is mounted on the outer surface of the input spline shaft (1); the fourth gear planetary gear (44) is mounted between the fourth gear ring gear (41) and the fourth gear sun gear (43); and the fourth planet carrier (45) is mounted on the outer wall of one side of the fourth gear ring gear (41).

4. A planetary gearbox according to claim 3, characterized in that: The third gear input device (5) comprises a third gear ring gear (51), a third thrust ball (52), a third gear sun gear (53), a third gear planetary gear (54) and a third planet carrier (55). The third thrust ball (52) is provided with a plurality of third thrust balls (52), and the plurality of third thrust balls (52) are respectively mounted on the outer walls of both sides of the third gear ring gear (51). The third gear sun gear (53) is mounted inside the third gear ring gear (51), and the third gear sun gear (53) is mounted on the outer surface of the input spline shaft (1). The third gear planetary gear (54) is mounted between the third gear ring gear (51) and the third gear sun gear (53). The third planet carrier (55) is mounted on the outer wall of one side of the third gear ring gear (51).

5. A planetary gearbox according to claim 4, characterized in that: The second gear input device (6) comprises a second gear ring gear (61), a second thrust ball (62), a second gear sun gear (63), a second gear planetary gear (64) and a second planet carrier (65), wherein a plurality of second thrust balls (62) are provided, and the plurality of second thrust balls (62) are respectively mounted on the outer walls on both sides of the second gear ring gear (61), the second gear sun gear (63) is mounted inside the second gear ring gear (61), and the second gear sun gear (63) is mounted on the outer surface of the input spline shaft (1), the second gear planetary gear (64) is mounted between the second gear ring gear (61) and the second gear sun gear (63), and the second planet carrier (65) is mounted on the outer wall on one side of the second gear ring gear (61).

6. A planetary gearbox according to claim 5, characterized in that: The first gear input device (7) comprises a first gear ring (71), a first thrust ball (72), a first gear sun gear (73), a first gear planetary gear (74) and a first planet carrier (75); a plurality of first thrust balls (72) are provided, and the plurality of first thrust balls (72) are respectively mounted on the outer walls on both sides of the first gear ring (71); the first gear sun gear (73) is mounted inside the first gear ring (71), and the first gear sun gear (73) is mounted on the outer surface of the input spline shaft (1); the first gear planetary gear (74) is mounted between the first gear ring (71) and the first gear sun gear (73); and the first planet carrier (75) is mounted on the outer wall on one side of the first gear ring (71).

7. A planetary gearbox according to claim 6, characterized in that: Annular sliding grooves are provided on both side outer walls of the first planet carrier (75), on both side outer walls of the second planet carrier (65), on both side outer walls of the third planet carrier (55), on both side outer walls of the fourth planet carrier (45), on both side outer walls of the fifth planet carrier (34), on the inner wall of the fifth gear right planet carrier (35) and on the inner wall of the reverse gear left planet carrier (86).

8. The planetary gearbox according to claim 1, characterized in that: The five-speed output device (9) comprises an inner spline shaft sleeve (91), a friction plate (92), a sliding shaft sleeve (93), an output gear (94), a gear pressure plate (95) and a pressure plate sleeve (96); the inner spline shaft sleeve (91) is mounted on the outer surface of the output spline shaft (2); the friction plate (92) is mounted on the inner side of the inner spline shaft sleeve (91); the sliding shaft sleeve (93) is mounted on the outer surface of the inner spline shaft sleeve (91); the output gear (94) is mounted on the outer surface of the sliding shaft sleeve (93); the gear pressure plate (95) is mounted on the inner side of the output gear (94); and the pressure plate sleeve (96) is mounted on the inner side of the gear pressure plate (95).

9. A planetary gearbox according to claim 8, characterized in that: A groove is provided on the inner side of the inner spline shaft sleeve (91); the outer surface of the output gear (94) meshes with the outer surface of the corresponding fifth gear (31); a side of the gear pressure plate (95) close to the output gear (94) is arranged as a concave structure; and a plurality of heat dissipation openings are provided on the gear pressure plate (95).

10. The planetary gearbox according to claim 8, characterized in that: The overall structure of the five-gear output device (9) is consistent with the overall structure of the fourth-gear output device (10), the overall structure of the third-gear output device (11), the overall structure of the second-gear output device (12), the overall structure of the first-gear output device (13) and the overall structure of the reverse-gear output device (14).

Images