A device for implementing a full-time four-wheel drive vehicle to match a disconnecting axle power take-off

Abstract

The utility model relates to a device for realizing all-wheel drive vehicle matching broken axle power takeoff, solves the problem that all-wheel drive vehicle cannot match broken axle power takeoff due to the limitation of transmission system arrangement. Including transfer case and broken axle power takeoff, broken axle power takeoff is integrated on the top of rear output shaft of transfer case, broken axle power takeoff clutch is connected with the end of transfer input shaft, forms the output end of broken axle power takeoff, the gear shifting fork of transfer case switches gear and is matched with the on-off control of power takeoff clutch, realizes the switching of broken axle power taking and vehicle driving function. The gear shifting fork of transfer case is in the neutral position, and the broken axle power takeoff clutch is combined, the gear shifting fork of transfer case is combined with the torque increasing gear set or the speed increasing gear set, and the broken axle power takeoff clutch is disconnected. The utility model integrates broken axle power takeoff on the basis of original transfer case, effectively saves the layout space of frame and transmission system, does not affect vehicle driving control, and is simple to install.

Description

Technical Field

[0001] This utility model relates to a device for matching a broken axle power take-off to an all-wheel drive vehicle, belonging to the field of all-wheel drive chassis. Background Technology

[0002] All-wheel drive chassis provide power output to the superstructure, typically through engine take-off, rear-mounted power take-off from the transmission, or transfer case power take-off, supplying engine power to the superstructure's operating equipment. However, there are instances where the chassis engine needs to be disconnected from the driving system, with all power provided to the superstructure equipment; this is where a disconnected axle power take-off (PTO) is used to power the superstructure.

[0003] All-wheel drive vehicles are equipped with a transfer case for power distribution between the front and rear axles. The power transmission route is complex, with multiple driveshafts. Due to the limitations of the transmission system layout, all-wheel drive vehicles lack sufficient space to accommodate a power take-off (PTO) device that can be used, preventing the superstructure from utilizing the full power of the vehicle's engine. To address this issue of the inability to accommodate a PTO in all-wheel drive vehicles due to transmission system limitations, a device for accommodating a PTO in all-wheel drive vehicles has been developed. Utility Model Content

[0004] The purpose of this invention is to introduce a device for matching all-wheel drive vehicles with a broken axle power take-off, thereby expanding the scope of application for all-wheel drive vehicle modification.

[0005] This utility model is achieved through the following technical solution: A device for matching a broken axle power take-off to an all-wheel drive vehicle includes a transfer case and a broken axle power take-off. The broken axle power take-off is integrated above the rear output shaft of the transfer case. The clutch of the broken axle power take-off is connected to the end of the input shaft of the transfer case to form the output end of the broken axle power take-off.

[0006] The transfer case shift fork, in conjunction with the on / off control of the power take-off clutch, enables the switching between power take-off from the broken shaft and vehicle driving functions.

[0007] Specifically, when the transfer case shift fork is in neutral, the broken shaft PTO clutch is engaged; when the transfer case shift fork is engaged with the torque-increasing gear set or speed-increasing gear set, the broken shaft PTO clutch is disengaged.

[0008] This utility model integrates a broken axle power take-off unit on the basis of the original transfer case, which effectively saves space for the chassis and transmission system layout, does not affect the vehicle's driving and handling, and is easy to install. Attached Figure Description

[0009] Figure 1 Structural diagram of a power take-off device for all-wheel drive vehicles with a broken axle; Figure 2Schematic diagram of a power take-off device for all-wheel drive vehicles with broken axle configuration. Detailed Implementation

[0010] This utility model employs a device for matching a broken axle power take-off to all-wheel drive vehicles, integrating the power take-off with the transfer case to achieve matching of a broken axle power take-off to all-wheel drive vehicles.

[0011] See the structural diagram of the device for matching a broken axle power take-off to an all-wheel drive vehicle. Figure 1 .

[0012] The broken axle power take-off is integrated above the rear output shaft of the transfer case. The vehicle driving transmission and clutch device of the broken axle power take-off is replaced by the transfer case shifting mechanism. The power take-off clutch device is connected to the end of the transfer case input shaft to form the output end of the broken axle power take-off. The original transfer case input, front output and rear output functions and positions remain unchanged.

[0013] The working principle of the device for matching a broken axle power take-off to an all-wheel drive vehicle is as follows: Figure 2 . The all-wheel drive vehicle's power take-off (PTO) device combines the transfer case shift fork gear switching with the PTO clutch on / off control to achieve switching between power take-off and vehicle driving functions. Figure 2 The specific functionality is implemented as follows: 1. Vehicle power is transmitted through the input end 1 of the transfer case. When the shift fork 3 is adjusted to the neutral position, the torque-increasing gear set 2 and the speed-increasing gear set 4 are disengaged from the power of the input end 1, and the vehicle differential gear set 8 loses power. That is, the front axle output end 9 and the rear axle output end 7 no longer drive the vehicle's driving system. When the power take-off clutch 5 is engaged, the power transmission between the input end 1 and the power take-off output end 6 is connected, and the power take-off output end 6 outputs power, realizing the power take-off from the broken axle.

[0014] 2. When the power take-off clutch 5 is disengaged, the power take-off output end 6 stops outputting power; the shift fork 3 of the transfer case engages with the torque-increasing gear set 2 (off-road gear) or the speed-increasing gear set 4 (highway gear), the differential gear set 8 is connected to the input end 1, the front axle output end 9 and the rear axle output end 7 receive power output, and the vehicle enters the driving state.

[0015] This utility model has the following advantages: 1. Integrating the power take-off (PTO) with the transfer case reduces the number of transmission system components, lowers material costs, and improves power transmission efficiency; it also saves the space required for separately matching a broken axle PTO, and the assembly process is the same as that of general-purpose all-wheel drive models, resulting in good assembly processability.

[0016] 2. The control system is based on the transfer case control system, and a universal power take-off on / off control system is added to realize the control of power take-off when the shaft breaks. It has low development cost and high degree of universality.

Claims

1. A device for matching a broken axle power take-off (PTO) to an all-wheel drive vehicle, comprising a transfer case and a broken axle PTO, characterized in that: the broken axle... The axle take-off is integrated above the rear output shaft of the transfer case. The axle breakage take-off clutch is connected to the end of the transfer case input shaft to form the output end of the axle breakage take-off. The gear shifting fork of the transfer case works in conjunction with the on / off control of the take-off clutch to achieve the switching between axle breakage take-off and vehicle driving functions.

2. The device for matching a broken axle power take-off to an all-wheel drive vehicle according to claim 1, characterized in that: When the transfer case shift fork is in neutral, the broken shaft PTO clutch is engaged; when the transfer case shift fork is engaged with the torque-increasing gear set or speed-increasing gear set, the broken shaft PTO clutch is disengaged.

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