A six drive splitter

Abstract

A six drive divider includes a divider housing, an input shaft, first and second output shafts, the input shaft and the first output shaft are supported on the housing, the input shaft and the first output shaft are located on the same axis, the input shaft and the first output shaft are slidingly fitted at the opposite ends, the other end of the input shaft is connected to a power source, the other end of the first output shaft is connected to a first rear axle, the second and first output shafts are parallel, the second output shaft is externally connected to a second rear axle at one end and to a front axle at the other end, the input shaft is externally connected to a speed reduction driving gear, the first output shaft is fixed to a first output gear, a first combination gear sleeve is located between the driving speed reduction gear and the first output gear, and is spline-fitted on the input shaft, the intermediate shaft is fixed to a speed reduction driven gear and a speed reduction output gear, the speed reduction driven gear is engaged with the speed reduction driving gear, the speed reduction output gear is engaged with the first output gear, the first output gear is connected to the second output gear through a gear, and the second output shaft is spline-fitted with a second combination gear sleeve.

Description

Technical Field

[0001] This utility model relates to the field of transfer cases, specifically to a six-drive transfer case. Background Technology

[0002] Traditional six-wheeled dual rear-wheel drive off-road vehicles or agricultural vehicles typically connect two rear-wheel drive units together to drive the vehicle. This structure increases fuel consumption and reduces economy when the vehicle is unloaded or under excellent road conditions.

[0003] The utility model patent CN220974394U, entitled "A Chassis and Vehicle with Mechanical Transmission Three-Axle Six-Wheel Six-Wheel Drive," proposes a structure that adds a rear transfer case. This structure uses the front-wheel-drive transfer case and the rear transfer case to jointly achieve power distribution in a three-axle six-wheel six-wheel drive vehicle. However, this structure has several problems:

[0004] 1. It requires coordinated control of the front-wheel drive transfer case and the rear transfer case, which involves complex control logic and many steps. There may be a coordination delay between the two devices, which may lead to missed opportunities to get out of trouble in extreme road conditions. At the same time, the presence of dual transfer cases increases the number of potential failure points.

[0005] 2. The power needs to pass through two devices: the front-wheel drive transfer case and the rear transfer case, resulting in multiple transmission links and significant losses. Summary of the Invention

[0006] To address the aforementioned problems, this utility model provides a six-wheel drive transfer case that integrates three-axle power control, simplifies control, and improves fuel economy.

[0007] The technical solution of this utility model is: a six-wheel drive transfer case, including a transfer case housing, an input shaft, a first output shaft, and a second output shaft. The input shaft, the first output shaft, and the second output shaft are respectively supported on the transfer case housing. The input shaft and the first output shaft are located on the same axis, and their opposing ends are slidably fitted by bearings. The other end of the input shaft extends outward for connecting to a power source. The other end of the first output shaft extends outward for connecting to a first rear axle. The second output shaft is parallel to the first output shaft, and both ends of the second output shaft extend outward, one end for connecting to a second rear axle and the other end for connecting to a front axle. A [missing information - likely a type of axle] is loosely fitted on the input shaft. A reduction drive gear is included. A first output gear is fixedly mounted on the first output shaft. A first engaging gear sleeve is located between the drive reduction gear and the first output gear and is axially movable, splinedly fitted on the input shaft for engaging with either the reduction drive gear or the first output gear. A reduction driven gear and a reduction output gear are circumferentially fixed on an intermediate shaft. The reduction driven gear meshes with the reduction drive gear, and the reduction output gear meshes with the first output gear. The first output gear is connected to a second output gear, which is loosely fitted on the second output shaft, via a transition wheel on a bridge shaft. A second engaging gear sleeve is splinedly fitted on the second output shaft for engaging or disengaging with the second output gear.

[0008] Preferably, an input shaft flange is provided at one end of the input shaft extending out of the transfer case housing, and the input shaft is connected to the power source through the input shaft flange.

[0009] Preferably, a first output flange is provided at one end of the first output shaft extending out of the transfer case housing, and the first output shaft is connected to the first rear axle through the first output flange.

[0010] Preferably, a second output flange and a front axle output flange are respectively provided at both ends of the second output shaft. The second output shaft is connected to the second rear axle through the second output flange and to the front axle through the front axle output flange.

[0011] Preferably, the input shaft, the first output shaft, the second output shaft, the intermediate shaft, and the bridge shaft are all supported in the transfer case housing by bearings.

[0012] Preferably, the first engaging tooth sleeve is provided with a first annular groove, and a first shift fork is provided in the first annular groove. The first engaging tooth sleeve is engaged with the reduction drive gear or the first output gear by shifting the first shift fork. The second engaging tooth sleeve is provided with a second annular groove, and a second shift fork is provided in the second annular groove. The second engaging tooth sleeve is engaged with or disengaged from the second output gear by shifting the second shift fork.

[0013] Preferably, the reduction drive gear, the first output gear, and the second output gear are all double-toothed.

[0014] Preferably, both the driven gear and the output gear are splined and fixed on the intermediate shaft.

[0015] The advantages of this utility model are as follows: By setting a six-wheel drive transfer case, this utility model integrates the power control of the front axle and the two rear axles into a single system. This system is simple to control, has low transmission loss, and integrates an independent deceleration mechanism within the six-wheel drive transfer case, resulting in faster response and better passability in complex road conditions. It also enables control of the vehicle's power when it is loaded or unloaded, saving fuel consumption and improving fuel economy. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of this utility model installed inside the chassis;

[0018] Figure 3 This is a schematic diagram of the structure of this utility model, which is directly driven by the first rear axle;

[0019] Figure 4 This utility model is a schematic diagram of a structure that is directly driven by the first rear axle after force is applied.

[0020] Figure 5 This utility model is a structural diagram showing the joint drive of a front axle, a first rear axle, and a second rear axle.

[0021] Figure 6 This utility model is a structural diagram showing the joint drive of the front axle, the first rear axle, and the second rear axle after force is applied. Detailed Implementation

[0022] See Figures 1 to 6A six-wheel drive transfer case includes a transfer case housing 11, an input shaft 2, a first output shaft 3, and a second output shaft 4. The input shaft 2, first output shaft 3, and second output shaft 4 are supported on the transfer case housing 11 by bearings. The input shaft 2 and the first output shaft 3 are located on the same axis, and their opposing ends are slidably fitted by bearings. One end of the input shaft 2 extends outward for connecting to a power source. The other end of the first output shaft 3 extends outward for connecting to a first rear axle 102. The second output shaft 4 is parallel to the first output shaft 3, with both ends extending outward; one end connects to a second rear axle 103, and the other end connects to a front axle 101. A reduction drive gear 21 is loosely fitted on the input shaft 2. A first output gear 31 is fixedly mounted on the first output shaft 3, and a first engagement sleeve 8 is located at... The active reduction gear 21 and the first output gear 31 are axially movable and splined together on the input shaft 2. The first engagement sleeve 8 is provided with a first annular groove, and a first shift fork is provided in the first annular groove. The first engagement sleeve 8 is engaged with the reduction active gear 21 or the first output gear 31 by shifting the first shift fork. A reduction driven gear 51 and a reduction output gear 52 are fixed on an intermediate shaft 5 by splines. The reduction driven gear 51 meshes with the reduction active gear 21, and the reduction output gear 52 meshes with the first output gear 31. The first output gear 31 is connected to the second output gear 41, which is loosely fitted on the second output shaft 4, through a transition wheel 61 on the transition shaft 6. The second output shaft 4 is splined together with a second engagement sleeve 7. The second engagement sleeve 7 is provided with a second annular groove, and a second shift fork is provided in the second annular groove. The second engagement sleeve 7 is engaged with or disengaged from the second output gear 41 by shifting the second shift fork. The reduction drive gear 21, the first output gear 31, and the second output gear 41 are all double-toothed, ensuring that the first engagement sleeve 8 can engage with the reduction drive gear 21 or the first output gear 31, and the second engagement sleeve 7 can engage with the second output gear 41.

[0023] See Figure 2The input shaft 2 of the six-wheel drive transfer case 1 of this utility model extends out of the transfer case housing 11 at one end and is provided with an input shaft flange 22. The input shaft flange 22 is connected to the power source output shaft flange, so that the power of the power source can be transmitted to the input shaft 2. The first output shaft 3 of the six-wheel drive transfer case 1 extends out of the transfer case housing 11 at one end and is provided with a first output flange 32. The first output flange 32 is connected to the first rear axle drive shaft flange, so that the six-wheel drive transfer case 1 can output power to the first rear axle 102. The two ends of the second output shaft 4 of the six-wheel drive transfer case 1 extend out of the transfer case housing 11 respectively. One end is provided with a second output flange 42, which is connected to the second rear axle drive shaft flange, so that the six-wheel drive transfer case 1 can output power to the second rear axle 103. The other end of the second output shaft 4 is provided with a front axle output flange 43, which is connected to the front axle drive shaft flange, so that the six-wheel drive transfer case 1 can output power to the front axle 101.

[0024] This utility model includes the following four driving methods:

[0025] ① First rear axle direct drive

[0026] See Figure 3 The first engagement sleeve 8 is engaged with the first output gear 31 by the first shift fork, and the second engagement sleeve 7 is disengaged from the second output gear 41. The power source is transmitted to the input shaft 2 of the six-drive transfer case 1. The input shaft 2 transmits the power to the first output gear 31 and the first output shaft 3 through the first engagement sleeve 8. The power is then transmitted to the first rear axle 102 through the first output shaft 3, forming a direct drive for the first rear axle.

[0027] ② First rear axle afterburner drive

[0028] See Figure 4 The first engagement sleeve 8 is engaged with the active reduction gear 21 by the first shift fork, and the second engagement sleeve 7 is disengaged from the second output gear 41. The power source is transmitted to the input shaft 2 of the six-drive transfer case 1. The input shaft 2 transmits the power to the reduction driven gear 51 and the intermediate shaft 5 through the first engagement sleeve 8. The reduction output gear 52 fixed on the intermediate shaft 5 transmits the power to the first output gear 31 and the first output shaft 3. The power is transmitted to the first rear axle 102 through the first output shaft 3, forming the first rear axle power-assisted drive.

[0029] ③ Three-bridge direct drive

[0030] See Figure 5The first engagement sleeve 8 is engaged with the first output gear 31 by the first shift fork, and the second engagement sleeve 7 is engaged with the second output gear 41 by the second shift fork. The power source is transmitted to the input shaft 2 of the six-drive transfer case 1. The input shaft 2 transmits the power to the first output gear 31 and the first output shaft 3 through the first engagement sleeve 8. The first output shaft 3 transmits the power to the first rear axle 102. The first output gear 31 transmits the power to the second output gear 41 and the second output shaft 4 through the pulley 61. The second output shaft 4 transmits the power to the front axle 101 and the second rear axle 103, forming a three-axle direct drive.

[0031] ④ Three-axle afterburner drive

[0032] See Figure 6 The first engagement sleeve 8 is engaged with the active reduction gear 21 by the first shift fork, and the second engagement sleeve 7 is engaged with the second output gear 41 by the second shift fork. The power source is transmitted to the input shaft 2 of the six-wheel drive transfer case 1. The input shaft 2 transmits the power to the reduction driven gear 51 and the intermediate shaft 5 through the first engagement sleeve 8. The reduction output gear 52, which is fixed on the intermediate shaft 5 by splines, transmits the power to the first output gear 31 and the first output shaft 3. The first output shaft 3 transmits the power to the first rear axle 102. The first output gear 31 transmits the power to the second output gear 41 and the second output shaft 4 through the intermediate gear 61. The second output shaft 4 transmits the power to the front axle 101 and the second rear axle 103, forming a three-axle power-assisted drive.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications made to the present utility model by those skilled in the art without departing from the spirit of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A six-drive transfer case, characterized in that: The transfer case includes a transfer case housing (11), an input shaft (2), a first output shaft (3), and a second output shaft (4). The input shaft (2), the first output shaft (3), and the second output shaft (4) are respectively supported on the transfer case housing (11). The input shaft (2) and the first output shaft (3) are located on the same axis. The opposite ends of the input shaft (2) and the first output shaft (3) are slidably connected by bearings. The other end of the input shaft (2) extends outward to connect to the power source. The other end of the first output shaft (3) extends outward to connect to the first rear axle (102). The second output shaft (4) is parallel to the first output shaft (3). Both ends of the second output shaft (4) extend outward, one end for connecting to the second rear axle (103) and the other end for connecting to the front axle (101). A reduction drive gear (21) is loosely fitted on the input shaft (2). The first output shaft ( 3) A first output gear (31) is fixedly installed on the upper part. A first engagement sleeve (8) is located between the reduction drive gear (21) and the first output gear (31) and is axially movable on the input shaft (2) for engaging with the reduction drive gear (21) or the first output gear (31). A middle shaft (5) is circumferentially fixed with a reduction driven gear (51) and a reduction output gear (52). The reduction driven gear (51) meshes with the reduction drive gear (21), and the reduction output gear (52) meshes with the first output gear (31). The first output gear (31) is connected to the second output gear (41) on the second output shaft (4) through the transition wheel (61) on the bridge shaft (6). The second output shaft (4) is splined with the second engagement sleeve (7) for engaging or disengaging with the second output gear (41).

2. A six-drive transfer case according to claim 1, characterized in that: The input shaft (2) extends out of the transfer case housing (11) and is provided with an input shaft flange (22). The input shaft (2) is connected to the power source through the input shaft flange (22).

3. A six-drive transfer case according to claim 1, characterized in that: The first output shaft (3) extends out of the transfer case housing (11) and is provided with a first output flange (32). The first output shaft (3) is connected to the first rear axle (102) through the first output flange (32).

4. A six-drive transfer case according to claim 1, characterized in that: The second output shaft (4) is provided with a second output flange (42) and a front axle output flange (43) at both ends. The second output shaft (4) is connected to the second rear axle (103) through the second output flange (42) and to the front axle (101) through the front axle output flange (43).

5. A six-drive transfer case according to claim 1, characterized in that: The input shaft (2), the first output shaft (3), the second output shaft (4), the intermediate shaft (5), and the bridge shaft (6) are all supported in the transfer case housing (11) by bearings.

6. A six-drive transfer case according to claim 1, characterized in that: The first engagement sleeve (8) is provided with a first annular groove, and a first shift fork is provided in the first annular groove. The first engagement sleeve (8) is engaged with the reduction drive gear (21) or the first output gear (31) by shifting the first shift fork. The second engagement sleeve (7) is provided with a second annular groove, and a second shift fork is provided in the second annular groove. The second engagement sleeve (7) is engaged with or disengaged from the second output gear (41) by shifting the second shift fork.

7. A six-drive transfer case according to claim 1, characterized in that: The reduction drive gear (21), the first output gear (31), and the second output gear (41) are all double-tooth gears.

8. A six-drive transfer case according to claim 1, characterized in that: The driven gear (51) and the output gear (52) are both splined and fixed on the intermediate shaft (5).

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