Multifunctional time-sharing four-wheel-drive agricultural equipment

Abstract

Compared with the prior art, the multifunctional time-sharing four-wheel-drive agricultural equipment is characterized in that a rear power output device and a transfer case are installed at the two ends of a farad gearbox respectively, and combination of a gear ring and a gear in the rear power output device is controlled through a front pneumatic separating valve; the rear pneumatic separating valve is used for controlling meshing between gears in the transfer case, so that whether a rotary cultivator or a field returning machine connected with the rear power output device works or not is controlled when the agricultural equipment is in different working states, and switching between four-wheel-drive running and two-wheel-drive running is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, and in particular to a multifunctional time-sharing four-wheel drive agricultural equipment. Background Art

[0002] The current agricultural equipment has a single function when working in the farmland, and because it requires a large torque in the working state, it generally travels slowly and has low work efficiency, which makes it difficult to meet the actual needs of the surge in workload during the busy farming season. In addition, in realizing the conversion between four-wheel drive and two-wheel drive, the common practice in the prior art is to place the transfer case in the middle of the vehicle beam, specifically by installing a drive shaft between the Fast gearbox and the transfer case to transmit power, which will reduce the efficiency of power transmission, and the horizontal axis of the drive shaft is difficult to determine, causing the vibration of the drive shaft during operation, causing serious wear of the cross-section of the drive shaft, and easily causing the associated fastening bolts to loosen, poor stability, and short life. In addition, the central installation space is limited, the size of the transfer case is limited, the models of various components are limited, and the load-bearing capacity of the transfer case is also affected. In addition, the transfer case installed on the Fast transmission is provided with an idler gear between the gear of the rear axle output shaft and the gear of the front axle output shaft, which increases the size of the transfer case, easily causing the power transmission process to be unstable and the power loss to be large, and the transmission efficiency is low. Utility Model Content

[0003] In order to solve the deficiencies of the above-mentioned prior art, the utility model provides a multifunctional time-sharing four-wheel drive agricultural equipment, in which a rear power output device and a transfer case are respectively arranged on the front and rear sides of the Fast gearbox, and the rear power output device and the transfer case are respectively connected integrally with the Fast gearbox, thereby reducing the use of a transmission shaft, ensuring the unification of the horizontal axis of the rotating shaft, reducing vibration, reducing wear, and extending the service life.

[0004] The technical solution adopted by the utility model to solve the above technical problems is to respectively install a rear power output device and a transfer case at the front and rear ends of the Fast gearbox, the engine transmits power to the power input shaft, the power input shaft transmits power to the rear power output device and the Fast gearbox at the same time, the rear power output device transmits power to a rotary tiller or a field return machine connected to the rear of the multifunctional time-sharing four-wheel drive agricultural equipment, the Fast gearbox transmits power to the transfer case, and the front axle power input shaft and the rear axle power input shaft in the transfer case transmit power to the wheels of the multifunctional time-sharing four-wheel drive agricultural equipment.

[0005] The rear power output device includes a cover plate on a side away from the Fast gearbox and a cover plate on a side close to the Fast gearbox. The two cover plates are connected by bolts, and the cover plate on the side close to the Fast gearbox is also connected to the Fast gearbox by bolts.

[0006] The rear power output device includes a power input shaft, a middle shaft and a power output shaft from bottom to top. The power input shaft is provided with a power gear, and the power input shaft and the power gear are connected by a spline. The middle shaft is provided with a first-stage reduction gear, and the first-stage reduction gear is provided with a needle bearing sleeved on the middle shaft. The power output shaft is provided with a second-stage reduction gear and a ring gear, and the second-stage reduction gear is provided with a deep groove ball bearing sleeved on the power output shaft, and the ring gear is connected to the power output shaft by a spline. A front pneumatic separation valve for controlling the combination or separation of the ring gear and the second-stage reduction gear is also provided on the rear power output device cover plate close to the Fast gearbox, and a shift fork is also provided between the front pneumatic separation valve and the ring gear.

[0007] The interior of the transfer case includes the front axle power input shaft and the rear axle power input shaft from bottom to top. The rear axle power input shaft is provided with a driving gear, and the front axle power input shaft is provided with a driven gear. The side of the transfer case close to the Fast gearbox is also provided with a rear pneumatic separation valve, and a shift fork is also provided between the rear pneumatic separation valve and the driven gear.

[0008] In the specific working process, when the multifunctional time-sharing four-wheel drive agricultural equipment is working in the farmland, the engine outputs power to the Fast gearbox and the rear power output device through the power input shaft, the power input shaft drives the power gear to rotate, the power gear is engaged with the first-stage reduction gear to drive the first-stage reduction gear to rotate, the first-stage reduction gear is engaged with the second-stage reduction gear to drive the second-stage reduction gear to rotate, at this time, the shift fork is pushed through the front pneumatic separation valve to make the gear ring and the second-stage reduction gear combine, thereby transmitting the power to the power output shaft, and the power output shaft then transmits the power to the rear rotary tiller or field return machine, and the power output of the engine is simultaneously transmitted to the rear axle power input shaft in the transfer case through the Fast gearbox, and the rear axle drive The driving gear on the force input shaft rotates, and at this time, the shift fork is pushed by the rear pneumatic separation valve to make the driven gear mesh with the driving gear, thereby transmitting power to the front axle power input shaft, thereby realizing four-wheel drive driving. When the multifunctional time-sharing four-wheel drive agricultural equipment is transferred to an ordinary road, the front pneumatic separation valve is controlled to disconnect the ring gear and the secondary reduction gear, further stopping the rotary tiller or field return machine behind the agricultural equipment, and at the same time controlling the rear pneumatic separation valve to disconnect the driving gear and the driven gear, thereby converting the four-wheel drive driving into two-wheel drive driving, thereby achieving the technical effect of being able to adapt to different working scenes, providing the greater traction required for work, and maintaining a faster travel speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is an overall schematic diagram of the utility model;

[0010] Figure 2 This is a schematic diagram of the cover plate of the rear output power device of the utility model close to the Fast gearbox side;

[0011] Figure 3 This is a schematic diagram of the cover plate of the rear power output device of the utility model away from the side of the Fast gearbox;

[0012] Figure 4 It is a schematic diagram of a transfer case cover plate of the utility model. DETAILED DESCRIPTION

[0013] Figure 1 It is an overall schematic diagram of the utility model, such as Figure 1As shown, the front and rear ends of the Fast gearbox 1 are respectively connected to the rear power output device 2 and the transfer case 3. The transfer case 3 includes a rear axle power input shaft 5 and a front axle power input shaft 6. The rear axle power input shaft is also the power output shaft of the Fast gearbox. The rear axle power output shaft 5 and the front axle power output shaft 6 are respectively provided with a driving gear 18 and a driven gear 19. The parameters of the driving gear 18 and the driven gear 19 are obtained according to the sizes of the front and rear wheels. Whether the driving gear 18 and the driven gear 19 are engaged is controlled by the rear pneumatic separation valve 27. When the driving gear 18 is engaged with the driven gear 19, the multifunctional time-sharing four-wheel drive agricultural equipment four-wheel drive When the driving gear 18 is not meshed with the driven gear 19, the multifunctional time-sharing four-wheel drive agricultural equipment drives in two-wheel drive; the rear power output device 2 includes a power input shaft 4, a power output shaft 22, a front pneumatic separation valve 20, a shift fork 21, a gear ring 29 and a power gear 12, a primary reduction gear 13, and a secondary reduction gear 14. The power input shaft 4 and the power gear 12 are connected by a spline. The primary reduction gear is provided with a needle bearing sleeved on the middle shaft, and the power output shaft is provided with a secondary reduction gear and a gear ring. The secondary reduction gear is provided with a deep groove ball bearing sleeved on the power output shaft. The power of the engine is transmitted to the power input shaft 4 through the power input shaft 4. The power gear 12 is transmitted to the power output shaft 22 after being decelerated by the primary reduction gear 13 and the secondary reduction gear 14. The front pneumatic separation valve 20 controls the engagement or separation between the ring gear 29 and the secondary reduction gear 14 through the fork 21. When the ring gear 29 and the secondary reduction gear 14 are engaged, the power output shaft 22 can transmit power to the rotary tiller or field return machine behind the multi-functional time-sharing four-wheel drive agricultural equipment, thereby realizing the function of rotary tillage or field return of the agricultural equipment. When the ring gear 29 and the secondary reduction gear 14 are in a separated state, the rear power output device does not output power, and the ring gear 29 and the secondary reduction gear 14 are in a separated state. The combination or separation is determined by the working scene. When the multifunctional time-sharing four-wheel drive agricultural equipment needs to drive in two-wheel drive when changing the working site, the rotary tiller or field return machine behind the agricultural equipment is not needed to work. At this time, the ring gear 29 and the secondary reduction gear 14 are in a separated state, and the driving gear 18 and the driven gear 19 in the transfer case 3 are in a disconnected state. When the multifunctional time-sharing four-wheel drive agricultural equipment works in the farmland, that is, it is necessary to provide power to the rotary tiller or field return machine and requires four-wheel drive, the ring gear 29 and the secondary reduction gear 14 are in a combined state, and the driving gear 18 and the driven gear 19 in the transfer case 3 are in a meshing state.

[0014] Figure 2 FIG. 1 is a schematic diagram of a cover plate of the rear output power device 2 of the utility model close to the side of the Fast gearbox 1, as shown in FIG. Figure 2 As shown, the Fast gearbox 1 and the rear power output device cover plate are bolted together through the bolt holes 10 , and the front pneumatic separation valve 20 is connected to the rear power output device cover plate through the front pneumatic separation valve hole 11 .

[0015] Figure 3 Schematic diagram of the cover plate of the rear power output device 2 of the utility model away from the side of the Fast gearbox 1, as shown in Figure 3 As shown, the two cover plates of the rear power output device are bolted together through bolt holes 25, the power input shaft 4 provides power to the rear power output device through the shaft hole 9, the middle shaft 30 is connected to the cover plate through the bearing seat hole 8, and the power output shaft 22 is connected to the cover plate through the bearing seat hole 7.

[0016] Figure 4 Schematic diagram of the cover plate of the transfer case 3 of the utility model, as shown Figure 4 As shown, the rear axle power input shaft 5 passes through the power input shaft hole 16 to provide power to the rear wheels and transmit power, and the front axle power input shaft 6 passes through the power output shaft hole 17 to provide power to the front wheels.

Claims

1. A multifunctional time-sharing four-wheel drive agricultural equipment, characterized in that A rear power output device and a transfer case are respectively arranged at the front and rear ends of the Fast gearbox, and the rear power output device and the transfer case are respectively fixedly connected with the Fast gearbox. A power input shaft, a middle shaft and a power output shaft are sequentially arranged inside the rear power output device from bottom to top. A power gear is arranged on the power input shaft, and a gear ring and a secondary reduction gear are arranged on the power output shaft. The gear ring is located on the side of the secondary reduction gear close to the Fast gearbox, and a primary reduction gear meshed with the power gear and the secondary reduction gear is arranged on the middle shaft. A front pneumatic separation valve is arranged on the outer wall of the side of the rear power output device close to the Fast gearbox, and a shift fork is arranged between the front pneumatic separation valve and the gear ring. A rear axle power input shaft and a front axle power input shaft are respectively arranged on the upper and lower parts of the transfer case, a driving gear is arranged on the rear axle power input shaft, and a driven gear meshed with the driving gear is arranged on the front axle power input shaft. A rear pneumatic separation valve is arranged on the outer wall of the side of the transfer case close to the Fast gearbox, and a shift fork is arranged between the rear pneumatic valve separation valve and the driven gear.

2. The multifunctional time-sharing four-wheel drive agricultural equipment according to claim 1, characterized in that The power gear is connected to the power input shaft via a spline, a needle bearing sleeved on the middle shaft is arranged inside the first-stage reduction gear, a deep groove ball bearing sleeved on the power output shaft is arranged inside the second-stage reduction gear, and the gear ring is connected to the power output shaft via a spline.

3. The multifunctional time-sharing four-wheel drive agricultural equipment according to claim 2, characterized in that The power output shaft is connected to the rotary tiller.

4. The multifunctional time-sharing four-wheel drive agricultural equipment according to claim 2, characterized in that The power output shaft is connected to the field returning machine.

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