Tractor and agricultural machinery

Abstract

The tractor comprises a first hinge body and a second hinge body movably connected with the first hinge body, a steering axle is further arranged at the end, away from the first hinge body, of the second hinge body, and front wheels capable of steering are arranged at the two ends of the steering axle. A telescopic piece is further arranged on one side of the second hinge body, one end of the telescopic piece is connected with the second hinge body, and the other end of the telescopic piece is connected with the steering axle; a first connecting rod and a second connecting rod are further arranged on the other side of the second hinge body, one end of the first connecting rod is connected with the first hinge body, one end of the second connecting rod is connected with the steering axle, and when the telescopic piece stretches out and draws back, the front wheels can be driven to steer. And meanwhile, the second hinge body is driven to rotate around one end of the first hinge body through the first connecting rod and the second connecting rod. The device has the advantages of being small in turning radius, good in trafficability and suitable for small-plot operation.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery, in particular to a tractor and agricultural machinery. Background Art

[0002] In recent years, with the continuous advancement of technology and the continuous development of the economy, various types of agricultural machinery, such as tractors, have made great progress and have been increasingly widely used in agricultural production activities.

[0003] Tractors, including crawler tractors and wheeled tractors, are mainly used for farmland cultivation and transportation. There are many types, large or small, and they are widely used. However, in most areas of Yunnan, Guizhou and other parts of my country, most of the land is not flat and often has a large slope. The area of ​​each plot is relatively small, and there are usually high ridges or ridges between the upper and lower plots. When the existing agricultural machinery is in operation, there are problems such as difficulty in turning the machinery and equipment around, and difficulty in replacing the machinery and equipment between plots. As a result, the level of mechanized farming in these areas is low, and manual labor is still the main method. In recent years, more and more land has been abandoned, which has seriously affected my country's food security.

[0004] In summary, how to provide a tractor with a smaller turning radius, better passability, and suitable for small farmland or mountain operations, and agricultural machinery including this tractor, has become a technical problem that technical personnel in this field urgently need to solve. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a tractor with a smaller turning radius, better passability and suitable for small farmland or mountain operations, and agricultural machinery comprising the tractor.

[0006] The solution of the utility model is achieved as follows: the utility model proposes a tractor, comprising a first articulated body, and a second articulated body movably connected to the first articulated body, the second articulated body is also provided with a steering bridge at one end away from the first articulated body, and the two ends of the steering bridge are provided with steerable front wheels, and a telescopic member is also provided on one side of the second articulated body, one end of the telescopic member is connected to the second articulated body, and the other end of the telescopic member is connected to the steering bridge; the other side of the second articulated body is also provided with a first connecting rod and a second connecting rod, one end of the first connecting rod is connected to the first articulated body, and one end of the second connecting rod is connected to the steering bridge, and when the telescopic member is extended, it can drive the front wheel to turn, and at the same time drive the second articulated body to rotate around one end of the first articulated body through the first connecting rod and the second connecting rod. In the tractor of this structure, when the telescopic member is extended, it drives the front wheel to turn left and right, and when the front wheel turns, the first connecting rod and the second connecting rod can drive the second articulated body to rotate around the first articulated body, that is, the waist turning is realized, so it has the advantages of a small turning radius, good passability, and suitable for operation in smaller farmland.

[0007] Another technical solution of the utility model is that on the basis of the above, the tractor also includes a connecting rod, and the two ends of the steering bridge are respectively provided with a first steering arm and a second steering arm, the first steering arm and the second steering arm are arranged opposite to each other, and the two ends of the connecting rod are respectively movably connected to the first steering arm and the second steering arm.

[0008] Another technical solution of the utility model is that on the basis of the above, a third steering arm and a fourth steering arm are further provided on the steering axle, the third steering arm is arranged on one side of the second steering arm, and the third steering arm can be linked with the second steering arm, and the fourth steering arm is arranged on one side of the first steering arm, and the fourth steering arm can be linked with the first steering arm.

[0009] Another technical solution of the utility model is that on the basis of the above, a transition arm is further provided on one side of the second hinged body, one end of the second connecting rod is movably connected to the third steering arm, and the other end of the second connecting rod is movably connected to the transition arm.

[0010] Another technical solution of the utility model is that on the basis of the above, a connecting seat is further provided on one side of the first hinged body, one end of the first connecting rod is movably connected to one end of the transition arm, and the other end of the first connecting rod is movably connected to the connecting seat.

[0011] Another technical solution of the utility model is that on the basis of the above, a support is further provided on the second hinged body, one end of the transition arm is movably connected to the support, and the connecting part of the second connecting rod and the transition arm is located between the two ends of the transition arm.

[0012] Another technical solution of the utility model is that on the basis of the above, the telescopic part is an oil cylinder, which includes a cylinder barrel and a piston rod telescopically arranged in the cylinder barrel, one end of the piston rod is movably connected to the fourth steering arm, and one end of the cylinder barrel is movably connected to the fixed seat.

[0013] Another technical solution of the utility model is that on the basis of the above, a main gearbox is further provided on the second articulated body, an auxiliary gearbox is further provided on the first articulated body, and a power take-off transmission shaft is provided between the main gearbox and the auxiliary gearbox.

[0014] Another technical solution of the utility model is that on the basis of the above, a rotatable power take-off output shaft is further provided at one end of the auxiliary transmission away from the main transmission, a suspension for connecting is further provided on one side of the auxiliary transmission, and rear wheels are further provided at both ends of the first hinged body.

[0015] On the other hand, another technical solution of the utility model is that on the basis of the above, the utility model also proposes an agricultural machinery, including a tractor, one end of which is also provided with a detachable implement or semi-trailer, and the tractor is the tractor as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0017] Figure 1 The utility model is a structural schematic diagram of a tractor.

[0018] The corresponding relationship of the reference numerals is:

[0019] 1 first hinge 2 second hinge 3 first brake hub

[0020] 4First steering arm 5Connecting rod 6Second steering arm

[0021] 7Third steering arm 8First connecting rod 9Transition arm

[0022] 10 support 11 second connecting rod 12 connecting seat

[0023] 13 socket 14 rear wheel 15 steering axle

[0024] 16 Third steering arm 17 Piston rod 18 Cylinder

[0025] 19 Fixed seat 20 Power take-off output shaft 21 Suspension

[0026] 22 second brake hub 23 main gearbox 24 auxiliary gearbox

[0027] 25 Power take-off drive shaft DETAILED DESCRIPTION

[0028] The present invention is described in detail below in conjunction with the accompanying drawings. The description in this section is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention. In addition, those skilled in the art can make corresponding combinations of the features in the embodiments and in different embodiments of the present invention according to the description of this document.

[0029] The utility model embodiments are as follows, see Figure 1 The tractor shown in the figure specifically comprises a first articulated body 1, and a second articulated body 2 movably connected to the first articulated body 1. The end of the second articulated body 2 facing away from the first articulated body 1, i.e., the left end shown in the figure, is also provided with a steering bridge 15. Both ends of the steering bridge 15 are also provided with steerable front wheels. A telescopic member is also provided on one side of the second articulated body 2, i.e., the left side shown in the figure. One end of the telescopic member, i.e., the right end shown in the figure, is connected to the first articulated body 1, and the other end of the telescopic member, i.e., the left end shown in the figure, is connected to the steering bridge 15. The other side of the second articulated body 2, i.e., the right side shown in the figure, is also provided with a first connecting rod 8 and a second connecting rod 11. One end of the first connecting rod 8 is connected to the first articulated body 1, and one end of the second connecting rod 11 is connected to the steering bridge 15. When the telescopic member is extended and retracted, it can drive the front wheel to turn left and right, and at the same time, the second articulated body 2 is driven to rotate around one end of the first articulated body 1 through the first connecting rod 8 and the second connecting rod 11. For a tractor of this structure, when the telescopic part is extended or retracted, it drives the front wheels to turn left or right. When the front wheels turn, the second articulated body 2 can be driven to rotate around the first articulated body through the first connecting rod 8 and the second connecting rod 11, that is, the waist-bending steering is realized. Therefore, it has the advantages of a small turning radius, good passability, and is suitable for operation in smaller farmlands.

[0030] Based on the above embodiment, in another embodiment of the utility model, as Figure 1 As shown, the tractor further includes a connecting rod 5, and the two ends of the steering bridge 15 are respectively provided with a first steering arm 4 and a second steering arm 6, the first steering arm 4 and the second steering arm 6 are arranged opposite to each other, and the two ends of the connecting rod 5 are respectively movably connected with the first steering arm 4 and the second steering arm 6. The two ends of the steering bridge 15 are also respectively provided with a first brake hub 3 and a second brake hub 22, and the front wheels are respectively arranged on the first brake hub 3 and the second brake hub 22.

[0031] Based on the above embodiment, in another embodiment of the utility model, as Figure 1As shown, the steering bridge 15 is also provided with a third steering arm 7 and a fourth steering arm 16. The third steering arm 7 is arranged at one side of the second steering arm 6, and the third steering arm 7 can be linked with the second steering arm 6. When the second steering arm 6 moves, the third steering arm 7 can be driven to move. The fourth steering arm 16 is arranged at one side of the first steering arm 4, and the fourth steering arm 16 can be linked with the first steering arm 4. When the first steering arm 4 moves, the fourth steering arm 16 can be driven to move.

[0032] Based on the above embodiment, in another embodiment of the utility model, as Figure 1 As shown, a transition arm 9 is also provided on one side of the second articulated body 2, i.e. the right side shown in the figure, one end of the second connecting rod 11, i.e. its left end is movably connected to the third steering arm 7, and the other end of the second connecting rod 11, i.e. its right end is movably connected to the transition arm 9.

[0033] Based on the above embodiment, in another embodiment of the utility model, as Figure 1 As shown, a connecting seat 12 is also provided on one side of the first hinged body 1, that is, the right side shown in the figure, one end of the first connecting rod 8, that is, the left end shown in the figure is movably connected to one end of the transition arm 9, and the other end of the first connecting rod 8, that is, the right end shown in the figure is movably connected to the connecting seat 12.

[0034] Based on the above embodiment, in another embodiment of the utility model, as Figure 1 As shown, a support 10 is also provided on the second hinged body 2, one end of the transition arm 9, namely the lower end shown in the figure, is movably connected to the support 10, and the connecting part between the second connecting rod 11 and the transition arm 9 is located between the two ends of the transition arm 9.

[0035] Based on the above embodiment, in another embodiment of the utility model, as Figure 1 As shown, the telescopic part is preferably an oil cylinder, which includes a cylinder barrel 18 and a piston rod 17 telescopically arranged in the cylinder barrel 18. One end of the piston rod 17, i.e. the left end shown in the figure, is movably connected to the fourth steering arm 16, and one end of the cylinder barrel 18, i.e. the right end shown in the figure, is movably connected to the fixed seat 19.

[0036] Based on the above embodiment, in another embodiment of the utility model, as Figure 1 As shown, a main gearbox 23 is also provided on the second articulated body 2, and an auxiliary gearbox 24 is also provided on the first articulated body 1. A power take-off transmission shaft 25 is provided between the main gearbox 23 and the auxiliary gearbox, that is, the left end of the power take-off transmission shaft 25 is connected to the main gearbox 23, and the right end is connected to the auxiliary gearbox 24. The power of the main gearbox 23 is transmitted to the auxiliary gearbox 24 through the power take-off transmission shaft 25.

[0037] Based on the above embodiment, in another embodiment of the utility model, as Figure 1As shown, the end of the auxiliary gearbox 24 away from the main gearbox 23, that is, the right end shown in the figure, is also provided with a rotatable power take-off output shaft 20, and a suspension 21 for connecting is also provided on one side of the auxiliary gearbox 24, and rear wheels 14 are also provided at both ends of the first articulated body 1. A plug-in can be set in the plug-in 13. When the plug-in is placed in the plug-in 13, the first articulated body 1 and the second articulated body 2 are locked, that is, the second articulated body 2 can no longer rotate around the first articulated body 1, and the tractor no longer has the function of bending and steering.

[0038] During the movement of this structure, when turning is required, taking left turning as an example, the oil cylinder is extended, and the fourth steering arm 16 drives the second brake hub to turn left. At the same time, the fourth steering arm 16 drives the first steering arm 4 to follow, and then drives the second steering arm 6 and the third steering arm 7 through the connecting rod 5, and then drives the second connecting rod 11 and the first connecting rod 8, and finally realizes the second articulated body 2 to rotate counterclockwise around the first articulated body 1, that is, while the front wheels are turning, the waist turning can also be implemented. Therefore, it has the advantages of a small turning radius, good passability, and is suitable for operations in smaller farmlands.

[0039] In addition, the utility model also proposes an agricultural machinery, including a tractor, one end of the tractor, that is, the right end shown in the figure, is also provided with a detachable machine or semi-trailer, more specifically, the right end of the tractor is also provided with a suspension, and the machine or semi-trailer is arranged on the suspension, and the tractor is specifically the tractor as described above. It should be noted that when the semi-trailer is arranged at the right end of the tractor, the first connecting rod 8 needs to be removed. At the same time, the plug-in needs to be placed in the socket 13 to lock the first articulated body 1 and the second articulated body 2 to prevent relative rotation between the two, that is, it no longer has the bending and steering function.

[0040] The agricultural machinery of this structure accordingly has the advantages possessed by the above-mentioned tractor.

[0041] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A tractor, characterized in that: The invention comprises a first hinged body and a second hinged body movably connected to the first hinged body, wherein the end of the second hinged body away from the first hinged body is further provided with a steering bridge, and both ends of the steering bridge are provided with steerable front wheels, and one side of the second hinged body is further provided with a telescopic member, one end of the telescopic member is connected to the second hinged body, and the other end of the telescopic member is connected to the steering bridge; A first connecting rod and a second connecting rod are also provided on the other side of the second hinged body, one end of the first connecting rod is connected to the first hinged body, and one end of the second connecting rod is connected to the steering bridge. When the telescopic member is extended or retracted, it can drive the front wheel to steer, and at the same time, the second hinged body is driven to rotate around one end of the first hinged body through the first connecting rod and the second connecting rod.

2. The tractor according to claim 1, characterized in that: The tractor further comprises a connecting rod, and two ends of the steering bridge are respectively provided with a first steering arm and a second steering arm, the first steering arm and the second steering arm are arranged opposite to each other, and two ends of the connecting rod are respectively movably connected with the first steering arm and the second steering arm.

3. The tractor according to claim 2, characterized in that: The steering bridge is also provided with a third steering arm and a fourth steering arm. The third steering arm is arranged on one side of the second steering arm and can be linked with the second steering arm. The fourth steering arm is arranged on one side of the first steering arm and can be linked with the first steering arm.

4. The tractor according to claim 3, characterized in that: A transition arm is also provided at one side of the second hinged body, one end of the second connecting rod is movably connected to the third steering arm, and the other end of the second connecting rod is movably connected to the transition arm.

5. The tractor according to claim 4, characterized in that: A connecting seat is further provided at one side of the first hinged body, one end of the first connecting rod is movably connected to one end of the transition arm, and the other end of the first connecting rod is movably connected to the connecting seat.

6. The tractor according to claim 5, characterized in that: A support is also provided on the second hinged body, one end of the transition arm is movably connected to the support, and the connecting portion between the second connecting rod and the transition arm is located between the two ends of the transition arm.

7. The tractor according to claim 6, characterized in that: A fixed seat is also provided on the side of the second hinged body close to the telescopic part. The telescopic part is an oil cylinder, which includes a cylinder barrel and a piston rod telescopically arranged in the cylinder barrel. One end of the piston rod is movably connected to the fourth steering arm, and one end of the cylinder barrel is movably connected to the fixed seat.

8. The tractor according to claim 7, characterized in that: The second articulated body is also provided with a main gearbox, the first articulated body is also provided with an auxiliary gearbox, and a power take-off transmission shaft is provided between the main gearbox and the auxiliary gearbox.

9. The tractor according to claim 8, characterized in that: A rotatable power take-off output shaft is also provided at one end of the auxiliary gearbox away from the main gearbox, a suspension for connecting is also provided at one side of the auxiliary gearbox, and rear wheels are also provided at both ends of the first hinged body.

10. An agricultural machine, comprising a tractor, one end of which is provided with a detachable implement or semi-trailer, characterized in that: The tractor is the tractor according to any one of claims 1 to 9.

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