CN103121377A - High ground clearance self-propelled chassis with adjustable wheel tread and wheel tread adjusting method of tractor - Google Patents

Abstract

The invention relates to a high ground clearance self-propelled chassis with adjustable wheelbase and a tractor wheelbase adjustment method. The chassis includes a vehicle frame, a walking system, an engine, a horizontal frame system and a wheelbase adjustment system. Connect the left horizontal frame and the right horizontal frame with the right traveling wheel; the wheelbase adjustment system includes a left wheel adjustment device and a right wheel adjustment device, and the left wheel adjustment device includes a first connecting rod that is hinged with the frame at one end and hinged with the left horizontal frame at the other end And the first driving member that drives the first connecting rod, the right wheel adjustment device includes a second connecting rod that is hinged with the vehicle frame at one end, and a second connecting rod that is hinged with the right horizontal frame at the other end and a second driving member that drives the second connecting rod. When adjusting the wheelbase of the tractor, the left horizontal frame is moved horizontally to the inside or outside by the expansion and contraction of the first telescopic part to adjust the left traveling wheel; and/or the telescopic movement of the second telescopic part drives the right horizontal frame to move horizontally to the inside or outside. Right travel wheel adjustment.

Description

Self-propelled chassis with adjustable wheelbase and tractor wheelbase adjustment method

technical field

The invention relates to a high ground clearance self-propelled chassis, in particular to a high ground clearance self-propelled chassis with adjustable wheelbase, and also relates to a tractor wheelbase adjustment method.

Background technique

In my country, cotton, corn, soybeans, rapeseed and other crops are in the middle and late stages of growth. The existing tractors have a low ground clearance, and the supporting equipment cannot enter the field for operation. Especially when field operations are performed on crops with different row spacings, different wheelbases are required. To cooperate with the equipment, it is necessary to adjust the wheelbase of the equipment. At present, the commonly used wheelbase adjustment methods of general tractors mainly include the hub cover clamping adjustment method, the rack and pinion adjustment method, the helical rack and pinion adjustment method, the helical shaft adjustment method, the spiral slide rail type adjustment method, and the telescopic shaft adjustment method. method and rim web adjustment method, but these adjustment methods generally have a relatively small adjustment range and the adjustment method is cumbersome. Therefore, an implement chassis with high ground clearance, simple and convenient wheelbase adjustment method, and wide adjustment range is a development direction that needs to be studied urgently.

Contents of the invention

The technical problem to be solved by the present invention is to provide a high ground clearance self-propelled chassis with adjustable wheel base in view of the deficiencies in existing tractor track adjustment methods.

In order to solve the above-mentioned technical problems, the high ground clearance self-propelled chassis with adjustable wheelbase of the present invention includes a vehicle frame, a walking system and an engine driving the walking system, the engine is arranged on the vehicle frame, and the walking system includes Left and right travel wheels, also includes:

A horizontal frame system, the horizontal frame system includes a left horizontal frame and a right horizontal frame, the left horizontal frame is connected with the left traveling wheel, and the right horizontal frame is connected with the right traveling wheel;

A wheelbase adjustment system, the wheelbase adjustment system includes a left wheel adjustment device and a right wheel adjustment device, the left wheel adjustment device includes a first connecting rod with one end hinged to the vehicle frame and the other end hinged to the left horizontal frame and Connected with the first connecting rod to drive the first driving member of the first connecting rod, the right wheel adjusting device includes a second connecting rod whose one end is hinged to the vehicle frame and the other end is hinged to the right horizontal frame. A rod and a second drive member connected to the second link to drive the second link.

The above-mentioned self-propelled chassis with adjustable wheelbase and high ground clearance, wherein, the frame is fixedly connected with a left upper outer ear plate, a left upper inner ear plate, a right upper outer ear plate and a right upper inner ear plate, and the left upper outer ear plate and the left upper inner ear plate are respectively It is symmetrical with the upper right outer ear plate and the upper right inner ear plate.

The aforementioned self-propelled chassis with adjustable wheel base, wherein the horizontal frame system further includes a left lower outer ear plate, a left lower inner ear plate fixedly connected to the left horizontal frame, and a left lower inner ear plate fixedly connected to the right horizontal frame. The upper right lower outer ear plate, right lower inner ear plate.

The above-mentioned self-propelled chassis with adjustable wheelbase, wherein, the first connecting rod includes a left wheelbase adjustment outer support arm and a left wheelbase adjustment inner support arm, and one end of the left wheelbase adjustment outer support arm is connected to the left upper The outer ear plate is hinged, and the other end is hinged with the left lower outer ear plate. One end of the left wheelbase adjustment inner support arm is hinged with the left upper inner ear plate, and the other end is hinged with the left lower inner ear plate.

In the aforementioned self-propelled chassis with adjustable wheelbase and high ground clearance, the left wheelbase adjusting outer arm and the left wheelbase adjusting inner arm form a parallelogram mechanism.

The above-mentioned self-propelled chassis with adjustable wheelbase, wherein, the left wheel adjustment device further includes a left wheelbase adjustment lower ear plate fixedly connected to the left wheelbase adjustment outer arm, and the vehicle frame is fixedly connected to There is a left wheel base adjustment upper ear plate, one end of the first driving member is hinged to the left wheel base adjustment upper ear plate, and the other end is hinged to the left wheel base adjustment lower ear plate.

The above self-propelled chassis with adjustable wheelbase, wherein the second connecting rod includes a right wheelbase adjustment outer arm and a right wheelbase adjustment inner arm, and one end of the right wheelbase adjustment outer arm is connected to The upper right outer ear plate is hinged, and the other end is hinged with the lower right outer ear plate. One end of the right wheelbase adjustment inner support arm is hinged with the upper right inner ear plate, and the other end is hinged with the lower right inner ear plate.

In the above self-propelled chassis with adjustable wheelbase and high ground clearance, the right wheelbase adjusting outer arm and the right wheelbase adjusting inner arm form a parallelogram mechanism.

The above self-propelled chassis with adjustable wheelbase, wherein the right wheel adjustment device further includes a right wheelbase adjustment lower ear plate fixedly connected to the right wheelbase adjustment outer arm, and the vehicle frame The upper part is fixedly connected with the right wheelbase adjustment upper ear plate, one end of the second driving member is hinged with the right wheelbase adjustment upper ear plate, and the other end is hinged with the right wheelbase adjustment lower ear plate.

The present invention further provides a method for adjusting the wheelbase of a tractor, which adopts the above-mentioned self-propelled chassis with high ground clearance for adjustment, including:

The step of adjusting the left traveling wheel by driving the left horizontal frame to move horizontally inwardly or outwardly through the expansion and contraction of the first telescopic member; and/or

The step of adjusting the right traveling wheel by driving the right horizontal frame to move horizontally to the inside or outside through the expansion and contraction of the second telescopic member.

The beneficial effect of the present invention is that the left horizontal frame can be adjusted horizontally to the inside or outside by the expansion and contraction of the first telescopic member, and the horizontal movement of the right horizontal frame to the inside or outside can be carried out by the expansion and contraction of the second telescopic member. The right wheel is adjusted, so that the machine tool can be adjusted in real time according to the planting row spacing of different crops in the process of field operation, and the automatic adjustment technology of the wheel track of high-stalk crops and high-gap pesticide application equipment is realized, which effectively solves the current problem. The disadvantages of complex wheelbase adjustment methods and small adjustment ranges.

At the same time, because the engine is arranged on the main frame, the left and right sides are respectively hinged with the vehicle frame and the left and right horizontal frames through the left and right wheelbase adjustment outer arms, the left horizontal frame is connected with the left traveling wheel, and the right horizontal frame is connected with the right traveling wheel , the whole is a gantry type, which can effectively improve the ground clearance of the machine tools, and effectively solve the problem of difficult field management operations in the middle and late stages of the growth of high-stalk crops in my country.

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

Description of drawings

Fig. 1 is the front view of the high ground clearance self-propelled chassis with adjustable wheel base of the present invention;

Fig. 2 is A-A direction view among Fig. 1;

Fig. 3 is the B-B direction view among Fig. 1;

Fig. 4 is a view from the direction C in Fig. 1 .

Among them, reference signs

10—Main frame

11—Left upper outer ear plate

12—left upper inner ear plate

13—right upper outer ear plate

14—right upper inner ear plate

15-Left wheelbase adjustment upper ear plate

16-Right wheel base adjustment upper ear plate

20-Engine

30—walking system

31—Left travel wheel

311—left front wheel

312—left rear wheel

32—Right travel wheel

321—right front wheel

322—right rear wheel

40—horizontal framing system

41—Left Horizontal Frame

42—right horizontal frame

43—Left lower outer ear plate

44—Left lower inner ear plate

45—right lower outer ear plate

46—right lower inner ear plate

50—Wheelbase adjustment system

51—Left wheel adjustment device

511—Left track adjustment outer arm

512—Left track adjustment inner support arm

513—Left wheelbase adjustment cylinder

514—Left wheelbase adjustment lower ear plate

52—Right wheel adjustment device

521—Right wheelbase adjustment outer arm

522—Right track adjustment inner support arm

523—right wheelbase adjustment cylinder

524—Right wheelbase adjustment lower ear plate

Detailed ways

The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of the present invention, but it is not intended to limit the scope of protection of the appended claims of the present invention.

The invention mainly relates to a self-propelled chassis with adjustable wheel base and high ground clearance, which is used in the middle and later stages of the growth of high-stalk crops. Its main technical feature is that the ground clearance of the chassis is high, and the wheel base can be adjusted in real time according to the operation requirements.

Referring to accompanying drawings 1 to 4, the self-propelled chassis with adjustable wheelbase of the present invention includes a vehicle frame 10, a traveling system 30, an engine 20 driving the traveling system, a horizontal frame system 40 and a wheelbase adjusting system 50. The engine 20 is provided on the vehicle frame 10 . Walking system 30 comprises left traveling wheel 31 and right traveling wheel 32, and left traveling wheel 31 comprises left front wheel 311, left rear wheel 312 again, and right traveling wheel 32 comprises right front wheel 321, right rear wheel 322 again. The horizontal frame system 40 includes a left horizontal frame 41 and a right horizontal frame 42 , the left horizontal frame 41 is connected with the left traveling wheel 31 , and the right horizontal frame 42 is connected with the right traveling wheel 32 . The wheelbase adjusting system 50 comprises a left wheel adjusting device 51 and a right wheel adjusting device 52, the left wheel adjusting device 51 comprises a first connecting rod whose one end is hinged with the vehicle frame 10, the other end is hinged with the left horizontal frame 41 and is connected with the first connecting rod to The first driver 513 that drives the first connecting rod, the right wheel adjustment device 52 includes a second connecting rod that is hinged at one end to the vehicle frame 10, and the other end is hinged to the right horizontal frame 42, and is connected to the second connecting rod to drive the second connecting rod. The second driver 523 of the rod.

Specifically, the frame 10 is fixedly connected with the upper left outer ear plate 11, the upper left inner ear plate 12, the upper right outer ear plate 13 and the upper right inner ear plate 14, the upper left outer ear plate 11, the upper left inner ear plate 12, the upper right outer ear plate 13, and the upper right inner ear plate 14 They are respectively welded on the vehicle frame 10 and arranged symmetrically with respect to the vehicle frame 10 . The vehicle frame 10 is also fixedly connected with a left wheel base adjusting upper ear plate 15 and a right wheel base adjusting upper ear plate 16 . The horizontal frame system 40 also includes a left lower outer ear plate 43 and a left lower inner ear plate 44 fixedly connected to the left horizontal frame 41 , and a right lower outer ear plate 45 and a right lower inner ear plate 46 fixedly connected to the right horizontal frame 42 . The first connecting rod includes a left wheelbase adjustment outer support arm 511 and a left wheelbase adjustment inner support arm 512, one end of the left wheelbase adjustment outer support arm 511 is hinged with the left upper outer ear plate 11, the other end is hinged with the left lower outer ear plate 43, and the left wheelbase adjustment inner support One end of the arm 512 is hinged to the left upper inner ear plate 12, and the other end is hinged to the left lower inner ear plate 44. Preferably, the left wheelbase adjustment outer arm 511 and the left wheelbase adjustment inner arm 512 form a parallelogram mechanism. The left wheel adjustment device 51 also includes a left wheel base adjustment lower ear plate 514 fixedly connected to the left wheel base adjustment outer support arm 511, one end of the first driver 513 is hinged with the left wheel base adjustment upper ear plate 15, and the other end is hinged with the left wheel base adjustment lower ear plate. The plate 514 is hinged, and the first driving member 513 may be a hydraulic cylinder (in this embodiment, the first driving member 513 is an oil cylinder, and since the function of the oil cylinder is to adjust the left wheelbase, it is also called the left wheelbase adjustment oil cylinder 513). The second connecting rod includes a right wheelbase adjustment outer support arm 521 and a right wheelbase adjustment inner support arm 522. One end of the right wheelbase adjustment outer support arm 521 is hinged with the upper right outer ear plate 13, and the other end is hinged with the lower right outer ear plate 45. One end of the wheelbase adjustment inner arm 522 is hinged to the right upper inner ear plate 14, and the other end is hinged to the right lower inner ear plate 46. Preferably, the right wheelbase adjustment outer arm 521 and the right wheelbase adjustment inner arm 522 form a parallelogram mechanism . The right wheel adjusting device 52 also includes the right wheel track adjusting lower ear plate 524 fixedly connected on the right wheel track adjusting outer support arm 521, the second driver 523 one end is hinged with the right wheel track adjusting upper ear plate 16, and the other end is hinged with the right wheel track adjusting ear plate 16. The lower lug plate 524 for wheelbase adjustment is hinged, and the second driving member 523 may be a hydraulic cylinder (in this embodiment, the second driving member 523 is an oil cylinder, since the function of the oil cylinder is to adjust the right wheelbase, it is also called It is the right wheel base adjustment oil cylinder 523).

With the help of the above-mentioned chassis, in the actual field operation process, the wheelbase of the tractor can be adjusted in real time according to the requirements for different crops. When the left wheelbase needs to be adjusted, the left wheelbase adjustment oil cylinder 513 can be controlled by a hydraulic system, and the parallelogram swing formed by the left wheelbase adjustment oil cylinder 513 can be adjusted by the expansion and contraction of the left wheelbase adjustment oil cylinder 513. Since the left wheelbase adjustment oil cylinder 513, One end of the left wheel adjustment inner and outer support arms is hinged with the vehicle frame 10, therefore, the left horizontal frame 41 can be driven to move horizontally inwardly or outwardly along with the expansion and contraction of the left wheelbase adjustment oil cylinder 513; All are fixed on the left horizontal frame 41, therefore, can finish the adjustment of track. The principle of track adjustment on the right is the same as that on the left. Moreover, the present invention can simultaneously adjust the left and right wheelbases or separately adjust the wheelbases on one side according to different needs. Since the present invention uses hydraulic technology to adjust the wheelbase through the first driving part and the second driving part, the adjustment method has the characteristics of simplicity, convenience, and a wide range of wheelbase adjustment, and the adjusted wheelbase can be suitable for field operations of various crops .

In addition, the engine 20 of the present invention is arranged on the vehicle frame 10, and the left and right sides are respectively hinged with the vehicle frame 10 and the left and right horizontal frames through the left and right wheelbase adjustment outer arms, and the left and right traveling wheels are respectively fixed on the left and right horizontal frames. The unique chassis structure can effectively improve the ground clearance of the machine tool, and complete the adjustment of the wheelbase of the vehicle while ensuring the minimum clearance of the machine tool. This chassis structure can adapt to field operations in the middle and late stages of high-stalk operations such as corn and sugarcane, and solves the problem that ordinary machines have low ground clearance and cannot enter the target field for operation.

Certainly, the present invention also can have other multiple embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding Changes and deformations should belong to the scope of protection of the appended claims of the present invention.

Claims (10)

1. high-clearance self-propelled chassis that wheelspan is adjustable comprises the driving engine of vehicle frame, running gear and the described running gear of driving, and described driving engine is arranged on vehicle frame, and described running gear comprises left lateral travelling wheel and right lateral travelling wheel, it is characterized in that, also comprises:

Horizontal frame system, described horizontal frame system comprise left horizontal frame and right horizontal frame, and described left horizontal frame is connected with the left lateral travelling wheel, and described right horizontal frame is connected with the right lateral travelling wheel;

The wheelspan control system, described wheelspan control system comprises revolver control apparatus and the right control apparatus of taking turns, the first connecting rod that described revolver control apparatus comprises that an end is hinged with described vehicle frame, the other end and described left horizontal frame are hinged be connected to drive the first actuator of described first connecting rod with described first connecting rod, the second connecting rod of describedly rightly take turns that control apparatus comprises that an end is hinged with described vehicle frame, the other end and described right horizontal frame are hinged be connected to drive the second actuator of described second connecting rod with described second connecting rod.

2. the adjustable high-clearance self-propelled chassis of wheelspan according to claim 1, it is characterized in that, be fixedly connected with in otic placode outside the upper left, upper left outside otic placode, upper right otic placode in otic placode and upper right on described vehicle frame, outside described upper left in otic placode, upper left otic placode respectively with described upper right outside in otic placode, upper right otic placode symmetrical.

3. the adjustable high-clearance self-propelled chassis of wheelspan according to claim 2, it is characterized in that, described horizontal frame system also comprises outside the lower-left that is fixedly connected on described left horizontal frame otic placode in otic placode, lower-left, and is fixedly connected on outside bottom right on described right horizontal frame otic placode in otic placode, bottom right.

4. the adjustable high-clearance self-propelled chassis of wheelspan according to claim 3, it is characterized in that, described first connecting rod comprises that revolver is apart from regulating outer support arm and revolver apart from regulating interior support arm, described revolver otic placode outside regulating outer support arm one end and described upper left is hinged, otic placode is hinged outside the other end and described lower-left, and described revolver otic placode in interior support arm one end of adjusting and the described upper left is hinged, otic placode is hinged in the other end and described lower-left.

5. the adjustable high-clearance self-propelled chassis of wheelspan according to claim 4, is characterized in that, described revolver is apart from regulating outer support arm and revolver support arm formation parallel-crank mechanism in regulate.

6. according to claim 4 or 5 adjustable high-clearance self-propelled chassis of described wheelspan, it is characterized in that, described revolver control apparatus also comprises and is fixedly connected on the revolver of described revolver on regulating outer support arm apart from the adjusting lower ear plate, be fixedly connected with revolver on described vehicle frame apart from regulating upper ear plate, upper ear plate is hinged apart from regulating for described the first actuator one end and described revolver, the other end and described revolver hinged apart from the adjusting lower ear plate.

7. the adjustable high-clearance self-propelled chassis of wheelspan according to claim 3, it is characterized in that, described second connecting rod comprises that right wheelspan is regulated outer support arm and right wheelspan is regulated interior support arm, described right wheelspan regulates outside outer support arm one end and described upper right that otic placode is hinged, otic placode is hinged outside the other end and described bottom right, in interior support arm one end of described right wheelspan adjusting and described upper right in hinged, the other end of otic placode and described bottom right otic placode hinged.

8. the adjustable high-clearance self-propelled chassis of wheelspan according to claim 7, is characterized in that, described right wheelspan regulates outer support arm and right wheelspan is regulated interior support arm formation parallel-crank mechanism.

9. according to claim 7 or 8 adjustable high-clearance self-propelled chassis of described wheelspan, it is characterized in that, the described right control apparatus of taking turns also comprises the right wheelspan adjusting lower ear plate that is fixedly connected on the outer support arm of described right wheelspan adjusting, be fixedly connected with right wheelspan on described vehicle frame and regulate upper ear plate, described the second actuator one end and described right wheelspan regulate that upper ear plate is hinged, the other end and described right wheelspan adjusting lower ear plate hinged.

10. a trac. wheelspan control method, is characterized in that, in employing claim 1-9, the described high-clearance self-propelled chassis of any one is regulated, and comprising:

The left horizontal frame of flexible drive by the first extensible member to the inside or outside parallel motion carry out the step that the left lateral travelling wheel is regulated; And/or

The right horizontal frame of flexible drive by the second extensible member to the inside or outside parallel motion carry out the step that the right lateral travelling wheel is regulated.

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