Front wheel driving system of agricultural three-wheel land preparation machine

Abstract

A front wheel driving system of an agricultural three-wheel land preparation machine is provided with a fixed turning angle mechanism, a transmission shaft, a follow-up turning angle mechanism and a chain speed change mechanism on the basis of a steering system of the agricultural three-wheel land preparation machine, the upper end of the transmission shaft is arranged in a power output gear center hole of the fixed turning angle mechanism and is connected with the power output gear center hole through an inner spline and an outer spline which are matched with the transmission shaft; the lower end of the transmission shaft is arranged in a center hole of a power input gear of the follow-up corner mechanism and is connected with the center hole through an inner spline and an outer spline which are matched with the center hole, and a power output shaft of the follow-up corner mechanism is in power connection with a front wheel shaft through a chain speed change mechanism; a machine body of the fixed corner mechanism is supported by one end of the steering outer fixing sleeve and fixedly connected with the steering outer fixing sleeve, the transmission shaft is rotationally connected into the steering hollow shaft, the follow-up corner mechanism is fixed below a front fork beam, and the chain speed change mechanism is installed in a fork body on one side of a front fork. The front wheel driving system can solve the technical problem that an agricultural three-wheel land preparation machine is insufficient in power.

Description

Technical Field

[0001] The utility model relates to a front wheel drive system of an agricultural three-wheeled land preparation machine, belonging to the field of agricultural machinery. Background Art

[0002] Traditional agricultural three-wheeled multi-purpose land preparation machines have only steering functions on their front wheels, can only travel passively, have a large turning radius, and lack power for land preparation operations. Summary of the invention

[0003] The utility model aims to provide a front wheel drive system for an agricultural three-wheeled land preparation machine, which enables the front wheel to have a dual function of front drive and steering, and can solve the technical problem of insufficient power of the agricultural three-wheeled land preparation machine.

[0004] The technical scheme of the utility model is: a front wheel drive system of an agricultural three-wheeled land leveling machine, including a steering outer fixed sleeve, a steering hollow shaft, a front fork assembly, and a front wheel shaft. The steering hollow shaft is sleeved in the steering outer fixed sleeve, and the steering hollow shaft and the steering outer fixed sleeve are connected by two sets of tapered roller bearings distributed upper and lower. The lower end of the steering hollow shaft is fixedly connected to the front fork assembly. The system also includes a fixed angle mechanism, a transmission shaft, a follower angle mechanism, and a chain speed change mechanism. The upper end of the transmission shaft is installed in the center hole of the power output gear of the fixed angle mechanism, and through its matching inner , and external splines, the lower end of the transmission shaft is installed in the center hole of the power input gear of the follow-up turning angle mechanism, and is connected through the matching internal and external splines, the power output shaft of the follow-up turning angle mechanism is connected to the front wheel axle power through a chain speed change mechanism; the body of the fixed turning angle mechanism is supported by and fixedly connected to one end of the steering outer fixed sleeve, the transmission shaft is rotatably connected in the steering hollow shaft, the upper part of the front fork assembly is connected to the telescopic end of the steering hydraulic cylinder, the follow-up turning angle mechanism is fixed under the front fork crossbeam, and the chain speed change mechanism is installed in the fork body on one side of the front fork.

[0005] The transmission shaft and the steering hollow shaft are coaxial.

[0006] When in use, the steering outer fixing sleeve body is fixed on the frame, and the power input end of the fixed turning angle mechanism is connected to the output end of the rear axle power transmission system.

[0007] The beneficial effect of the utility model is that, on the basis of the original front steering mechanism of the agricultural three-wheeled land leveling machine, the power of the fixed angle mechanism is transmitted to the follow-up angle mechanism through the transmission shaft in the steering hollow shaft, and under the condition that the steering outer fixed sleeve, the steering hollow shaft and the transmission shaft are the same axis, the steering outer fixed sleeve bearing, the steering hollow shaft steering and the transmission shaft power transmission are realized at the same time, so that the front wheel of the agricultural three-wheeled land leveling machine has the dual functions of driving and steering. This technology realizes the maximization of traction, the reduction of the steering radius and the increase of the turning sensitivity by driving the front and rear wheels synchronously. The implementation proves that the performance of various indicators is stable, thereby improving the power of the land leveling machine and the scope of application of the land leveling machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 The utility model is a structural schematic diagram of a front wheel drive system of an agricultural three-wheeled land preparation machine.

[0009] In the figure: 1 fixed turning mechanism, 2 bolts, 3 round nuts, 4 tapered roller bearings, 5 steering outer fixed sleeves, 6 steering hydraulic cylinders, 7 follow-up turning mechanism, 8 front wheels, 9 wheel hub assembly,

[0010] 10 front wheel axle, 11 chain speed change mechanism, 12 front fork assembly, 13 bolts, 14 steering hollow shaft, 15 transmission shaft. DETAILED DESCRIPTION

[0011] The utility model relates to a front wheel drive system of an agricultural three-wheeled land preparation machine, which belongs to the field of agricultural machinery. The steering system of the technical solution comprises: a steering outer fixed sleeve 5, a steering hollow shaft 14, a front fork assembly 12, a front wheel shaft 10, and a front wheel 8. The steering outer fixed sleeve 5 is fixedly connected to a frame, the steering hollow shaft 14 is sleeved in the steering outer fixed sleeve 5, two sets of tapered roller bearings 4 are arranged between the steering hollow shaft 14 and the steering outer fixed sleeve 5, and the two sets are arranged in an upper and lower manner. The lower end of the steering hollow shaft 14 is fixedly connected to the front fork assembly 12, the upper part of the front fork assembly 12 is connected to the telescopic end of the steering hydraulic cylinder 6, and the lower end of the front fork assembly 12 is connected to the front wheel shaft 10, so that the wheel hub assembly 9 and the front wheel 8 on the front wheel shaft 10 follow, thereby realizing the steering of the front wheel 8. The front wheel drive system of the present technology includes: a fixed angle mechanism 1, a transmission shaft 15, a follower angle mechanism 7, and a chain speed change mechanism 11. The transmission shaft 15 is installed in a steering hollow shaft 14, and the transmission shaft 15 is coaxial with the steering hollow shaft 14. The power input end of the fixed angle mechanism 1 is connected to the output end of the rear axle power transmission system of the land leveling machine. The power output end of the fixed angle mechanism 1 includes a power output gear, which has a center hole, and an internal spline is arranged in the center hole. The upper end of the transmission shaft 15 is provided with an external spline matching the internal spline. The upper end of the transmission shaft 15 is installed at the power output of the fixed angle mechanism 1. The power input end of the follow-up angular mechanism 7 includes a power input gear, which has a center hole, and an internal spline is arranged in the center hole. The lower end of the transmission shaft 15 is provided with an external spline matching the internal spline. The lower end of the transmission shaft 15 is installed in the center hole of the power input gear of the follow-up angular mechanism 7 and is connected by the internal and external splines. The power output shaft of the follow-up angular mechanism 7 is connected to the front wheel shaft 10 through the chain speed change mechanism 11, so that the wheel hub assembly 9 and the front wheel 8 on the front wheel shaft 10 follow, thereby providing driving force for the rotation of the front wheel 8. The body of the fixed angular mechanism 1 is supported and fixedly connected by one end of the steering outer fixed sleeve 5. The follow-up angular mechanism 7 is placed below the front fork crossbeam, and the chain speed change mechanism 11 is installed in the fork body on one side of the front fork.

[0012] The steering process is that the telescopic end of the steering hydraulic cylinder 6 pushes the front fork assembly 12 to rotate, so that the steering hollow shaft 14 fixedly connected to the upper end of the front fork rotates in the steering outer fixed sleeve 5. The steering outer fixed sleeve 5 plays a role in positioning the front fork rotation through the steering hollow shaft 14, and the lower end of the front fork carries the front wheel shaft 10, the wheel hub assembly 9, and the front wheel 8 for steering.

[0013] The front wheel driving process is that the power input end of the fixed turning angle mechanism 1 receives power from the rear axle power transmission system of the land leveling machine, so that the power output gear, transmission shaft 15, follow-up turning angle mechanism 7, chain speed change mechanism 11, front wheel axle 10, and hub assembly 9 of the fixed turning angle mechanism 1 sequentially transmit power to rotate the front wheel 8.

[0014] The present technology is an improvement on the steering mechanism of an existing agricultural three-wheeled land leveling machine. A fixed angle mechanism 1 is fixedly installed on an existing steering outer fixed sleeve, a follower angle mechanism 7 is installed under an existing front fork assembly, and a transmission shaft 15 is installed in an existing steering hollow shaft. The transmission shaft 15 connects the fixed angle mechanism 1 and the follower angle mechanism 7 together up and down to transmit power, and then provides driving force for the front wheel 8 through a chain speed change mechanism 11. The steering outer fixed sleeve 5 bears the load, the steering hollow shaft 14 steers, and the transmission shaft 15 transmits power, thereby completing steering and power output at the same time. The present technology drives the front wheel 8 and the rear wheel synchronously, so that the traction of the agricultural three-wheeled land leveling machine is doubled, and the performance of various indicators is stable, thereby improving the operating range of the land leveling machine.

Claims

1. A front wheel drive system for an agricultural three-wheeled land leveling machine, comprising a steering outer fixing sleeve (5), a steering hollow shaft (14), a front fork assembly (12), and a front wheel shaft (10), wherein the steering hollow shaft (14) is sleeved in the steering outer fixing sleeve (5), the steering hollow shaft and the steering outer fixing sleeve are connected via upper and lower tapered roller bearings (4), and the lower end of the steering hollow shaft (14) is fixedly connected to the front fork assembly (12), characterized in that: It also includes a fixed turning angle mechanism (1), a transmission shaft (15), a follower turning angle mechanism (7), and a chain speed change mechanism (11). The upper end of the transmission shaft (15) is mounted in the center hole of the power output gear of the fixed turning angle mechanism (1) and is connected through its matching internal and external splines. The lower end of the transmission shaft (15) is mounted in the center hole of the power input gear of the follower turning angle mechanism (7) and is connected through its matching internal and external splines. The power output shaft of the follower turning angle mechanism (7) is connected to the front wheel shaft (10) through the chain speed change mechanism (11). The body of the fixed turning angle mechanism (1) is supported by one end of the steering outer fixed sleeve (5) and is fixedly connected thereto. The transmission shaft (15) is rotatably connected in the steering hollow shaft (14). The upper part of the front fork assembly (12) is connected to the telescopic end of the steering hydraulic cylinder (6). The follower turning angle mechanism (7) is placed below the front fork crossbeam. The chain speed change mechanism (11) is mounted in the fork body on one side of the front fork.

2. The front wheel drive system of a three-wheeled agricultural land preparation machine according to claim 1, characterized in that: The transmission shaft (15) and the steering hollow shaft (14) are coaxial.

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