CN213354638U

CN213354638U - Tractor

Info

Publication number: CN213354638U
Application number: CN202021965653.0U
Authority: CN
Inventors: 陈震霖; 周志; 陆小芳
Original assignee: Changsha Sanglaite Agricultural Mechanical Equipment Co Ltd
Current assignee: Changsha Sanglaite Agricultural Mechanical Equipment Co Ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-06-04
Anticipated expiration: 2030-09-09

Abstract

The utility model provides a tractor, which comprises a machine head, a traction seat and a trailer, wherein the machine head is connected with the trailer through the traction seat; a connecting body is arranged on the machine head, and a spline shaft is arranged at one end of the connecting body, which is far away from the machine head; a bearing seat is arranged on the trailer, a transmission shaft is arranged at one end, close to the machine head, of the bearing seat, and one end of the spline shaft is connected with one end of the transmission shaft; the connecting body, the spline shaft, the transmission shaft and the center line of the bearing seat are overlapped. Compared with the tractor with the existing structure, the tractor with the structure has the advantages that the central lines of the connecting body, the spline shaft, the transmission shaft and the bearing seat are overlapped, so that the spline shaft is in the telescopic amount in the transmission shaft is small even when the vehicle turns, the spline shaft can be well protected, the damage of the spline shaft is prevented, and the failure rate of the tractor is reduced. Simultaneously, the whole noise of tractor is also littleer, and the travelling comfort of driving is effectively improved.

Description

Tractor

Technical Field

The utility model relates to the field of agricultural machinery, in particular to tractor.

Background

With the continuous development of economy and science and technology, various agricultural machines such as tractors and the like are more and more commonly used in vast rural areas.

At present, the structure of tractor mainly includes aircraft nose and trailer, and power sets up on the aircraft nose, and aircraft nose and trailer pass through the traction seat and connect, set up the connector that is used for output power on the aircraft nose, and the connector passes through the transmission shaft and transmits power transmission to the rear-guard gearbox, and the rethread rear-guard shaft transmits to the rear axle, transmits to the rear wheel at last, accomplishes power transmission. Because the connecting body is arranged on the machine head in a biased mode, a transmission shaft, a bearing seat, a rear-drive gearbox and the like which are connected with the connecting body are also arranged in a biased mode, namely, the transmission of power is not on the same straight line, when a vehicle turns, the telescopic quantity of a spline arranged at the end portion of the transmission shaft is large, so that the spline bearing torque is short in some times, and at the moment, the spline is easy to damage. In addition, when the universal joint change angle of the transmission shaft is increased in the driving process, the noise is increased greatly, and the driving comfort is deteriorated.

In summary, how to provide a tractor with less failure, less noise and good comfort becomes a technical problem that needs to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the tractor has the advantages of less faults, low noise and good comfort.

The utility model discloses a solution is realized like this: the utility model provides a tractor, which comprises a machine head, a traction seat and a trailer, wherein the machine head is connected with the trailer through the traction seat; a connecting body is arranged on the machine head, and a spline shaft is arranged at one end of the connecting body, which is far away from the machine head; a bearing seat is arranged on the trailer, a transmission shaft is arranged at one end, close to the machine head, of the bearing seat, and one end of the spline shaft is connected with one end of the transmission shaft; the connecting body, the spline shaft, the transmission shaft and the center line of the bearing seat are overlapped. Compared with the tractor with the existing structure, the tractor with the structure has the advantages that the central lines of the connecting body, the spline shaft, the transmission shaft and the bearing seat are overlapped, so that the spline shaft is in the telescopic amount in the transmission shaft is small even when a vehicle turns, the spline shaft can be well protected, the damage of the spline shaft is prevented, and the failure rate of equipment is reduced. Simultaneously, the whole noise of tractor is also littleer, and the travelling comfort of driving is effectively improved.

The utility model discloses a another technical scheme lies in on above-mentioned basis, still be equipped with the rear-guard gearbox on the trailer, the one end of rear-guard gearbox with the bearing frame deviates from the one end of transmission shaft is connected, just the central line of rear-guard gearbox with the coincidence of the central line of transmission shaft.

Another technical scheme of the utility model lies in on above-mentioned basis, the integral key shaft is close to the one end of connector still is equipped with the universal joint, the integral key shaft with the connector passes through the universal joint links together.

The utility model discloses an another technical scheme lies in on above-mentioned basis, be equipped with the spline groove on the inner wall of transmission shaft, the one end of integral key shaft set up in the spline groove, just the integral key shaft can stretch out and draw back in the transmission shaft.

Another technical scheme of the utility model lies in on above-mentioned basis, the connector set up in on the central line of aircraft nose, the connector with the output shaft of aircraft nose, or formula structure as an organic whole.

Another technical scheme of the utility model lies in on above-mentioned basis, the tractor still includes the telescopic rocking arm, the rocking arm set up in one side of pulling the seat, its one end with the aircraft nose is connected, the other end with the trailer is connected, when the rocking arm is flexible, drive the aircraft nose turns to.

The utility model discloses an another technical scheme lies in on above-mentioned basis, still be equipped with the back-drive axle on the trailer, the one end of back-drive axle with the back-drive gearbox deviates from the one end of bearing frame is connected.

The utility model discloses an another technical scheme lies in on above-mentioned basis, still be equipped with the rear axle on the trailer, the one end of rear axle with the back-drive axle deviates from the one end of back-drive gearbox is connected.

Another technical scheme of the utility model lies in on above-mentioned basis, the tractor still includes the rear axle shaft, the one end of rear axle shaft with the rear axle connects, and the other end is equipped with the wheel.

The utility model discloses an another technical scheme lies in on above-mentioned basis, still be equipped with the driver's cabin on the aircraft nose, still be equipped with the steering wheel in the driver's cabin, the both sides of aircraft nose still are equipped with the front wheel.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation.

Fig. 1 is a schematic structural view of the tractor of the present invention.

The corresponding relation of the reference signs is as follows:

1 nose 2 trailer 3 front wheel

Spline shaft 6 rocker arm 4 steering wheel 5

7 universal joint 8 rear half shaft of frame 9

10 rear wheel 11 connector 12 transmission shaft

13 traction seat

21 bearing seat 22 rear-drive gearbox 23 rear-drive shaft

24 rear axle

Detailed Description

The present invention will be described in detail with reference to the drawings, which are provided for illustrative and explanatory purposes only and should not be construed as limiting the scope of the present invention in any way. Furthermore, features from embodiments in this document and from different embodiments may be combined accordingly by a person skilled in the art from the description in this document.

The embodiment of the utility model provides a following, please refer to the tractor that fig. 1 shows, including aircraft nose 1, traction seat 13 and trailer 2, aircraft nose 1 links together with trailer 2 through traction seat 13, more specifically, is equipped with connector 11 on aircraft nose 1, and connector 11 deviates from the one end of aircraft nose 1, and the right-hand member shown in the picture is equipped with integral key shaft 6 promptly, and even interval sets up a plurality of splines on integral key shaft 6. The trailer 2 comprises a frame 8, a bearing seat 21 is arranged on the frame 8, a transmission shaft 12 is arranged at one end, namely the left end shown in the figure, of the bearing seat 21 close to the machine head 1, and one end, namely the right end shown in the figure, of the spline shaft 6 is connected with the left end of the transmission shaft 12. Meanwhile, the center lines of the connecting body 11, the spline shaft 6, the transmission shaft 12, and the bearing seat 21 coincide, i.e., the center lines thereof are on a straight line. Compared with the tractor with the prior structure, the tractor with the structure has the advantages that the central lines of the connecting body 11, the spline shaft 6, the transmission shaft 12 and the bearing seat 21 are overlapped, so that the telescopic amount of the spline shaft 6 in the transmission shaft 12 is small even when a vehicle turns, the spline shaft 6 can be well protected, the damage of the spline shaft is prevented, and the failure rate of the tractor is reduced. Simultaneously, the whole noise of tractor is also littleer, and the travelling comfort of driving is effectively improved.

On the basis of the above embodiment, in another embodiment of the utility model, as shown in fig. 1, the rear-drive gearbox 22 is arranged on the frame 8, and the one end of the rear-drive gearbox 22, the left end shown in the figure promptly deviates from the one end of transmission shaft 12 with bearing frame 21, and the right-hand member shown in the figure promptly is connected, and the central line of the rear-drive gearbox 22 coincides with the central line of transmission shaft 12, and the central line of connecting body 11, integral key shaft 6, transmission shaft 12, bearing frame 21 and rear-drive gearbox 22 all is on a straight line promptly.

On the basis of the above-mentioned embodiment, the utility model discloses in another embodiment, as shown in fig. 1, integral key shaft 6 is close to the one end of connector 11, and the left end shown in the picture still is equipped with the universal joint 7 that is used for being connected with connector 11 promptly, and integral key shaft 6 links together through universal joint 7 with connector 11, and when connector 11 was rotatory, drive universal joint 7 and rotate, and when universal joint 7 rotated, it was rotatory to drive transmission shaft 12, and then realized power transmission.

On the basis of the above embodiment, the utility model discloses in another embodiment, as shown in fig. 1, transmission shaft 12 still is equipped with the spline groove on being close to the inner wall of the one end of connector 11, and the one end of integral key shaft 6 sets up in the spline groove, and when the tractor is traveling or turns to, integral key shaft 6 can make a round trip to stretch out and draw back in the spline groove.

On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 1, the connecting body 11 is disposed in the center of the machine head 1, and the connecting body 11 coincides with the center line of the machine head 1, that is, the center lines of the machine head 1, the connecting body 11, the spline shaft 6, the transmission shaft 12, the bearing seat 21, and the rear-drive gearbox 22 are all on the same straight line. An output shaft is arranged at one end, close to the connecting body 11, of the machine head 1, and the connecting body 11 is connected with the output shaft together, or the connecting body 11 and the output shaft are of an integrated structure.

On the basis of the above embodiment, in another embodiment of the utility model, as shown in fig. 1, the tractor still includes telescopic rocking arm 5, and rocking arm 5 specifically sets up in one side of traction seat 13, and more specifically, the one end and the aircraft nose 1 of rocking arm 5 are connected, and the other end is connected with trailer 2, is equipped with the extensible member on rocking arm 5, and when rocking arm 5 stretches out and draws back, can drive aircraft nose 1 and turn to.

On the basis of the above-mentioned embodiment, the utility model discloses in another embodiment, as shown in fig. 1, still be equipped with the back drive axle 23 on the trailer 2, the one end of back drive axle 23, the left end that shows in the figure promptly deviates from the one end of bearing frame 21 with back drive gearbox 22, and the right-hand member shown in the figure is connected, and the power of back drive gearbox 22 comes from transmission shaft 12, after back drive gearbox 22 changes the speed, transmits to back drive axle 23.

On the basis of the above embodiment, in another embodiment of the utility model, as shown in fig. 1, still be equipped with rear axle 24 on the trailer 2, rear axle 24's one end, the left end that is shown in the figure promptly deviates from the one end of rear-guard gearbox 22 with rear-guard shaft 23, and the right-hand member that is shown in the figure promptly is connected, and power transmits to rear-guard shaft 23 from rear-guard gearbox 22, passes to rear axle 24 again.

On the basis of the above embodiment, in another embodiment of the utility model, as shown in fig. 1, the tractor still includes two rear half axles 9, and two rear half axles 9 set up relatively, and its one end is connected with rear axle 24 respectively, and the other end sets up rear wheel 10 respectively, and when rear axle 24 rotated, drive two rear half axles 9 and rotate, and when rear half axle 9 was rotatory, it was rotatory to drive two rear wheels 10, realized advancing, retreating or turning to from the page or leaf.

On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 1, a driving cab is further disposed on the machine head 1, a steering wheel 4 is further disposed in the driving cab, and front wheels 3 are further disposed on two sides of the machine head 1 respectively.

According to the tractor with the structure, as mentioned above, the central lines of the machine head 1, the connecting body 11, the spline shaft 6, the transmission shaft 12, the bearing seat 21 and the rear-drive gearbox 22 are all on the same straight line, and even when a vehicle turns, the telescopic amount of the spline shaft 6 in the transmission shaft 12 is small, so that the spline shaft 6 can be well protected, the damage of the spline shaft is prevented, and the failure rate of the tractor is reduced. Simultaneously, the whole noise of tractor is also littleer, and the travelling comfort of driving is effectively improved.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The tractor is characterized by comprising a machine head, a traction seat and a trailer, wherein the machine head is connected with the trailer through the traction seat;

a connecting body is arranged on the machine head, and a spline shaft is arranged at one end of the connecting body, which is far away from the machine head;

a bearing seat is arranged on the trailer, a transmission shaft is arranged at one end, close to the machine head, of the bearing seat, and one end of the spline shaft is connected with one end of the transmission shaft;

the connecting body, the spline shaft, the transmission shaft and the center line of the bearing seat are overlapped.

2. The tractor according to claim 1, wherein a rear drive gearbox is further arranged on the trailer, one end of the rear drive gearbox is connected with one end of the bearing seat, which is far away from the transmission shaft, and the center line of the rear drive gearbox is coincident with the center line of the transmission shaft.

3. The tractor as defined by claim 2, wherein a universal joint is further provided at one end of the spline shaft near the connecting body, and the spline shaft and the connecting body are connected together through the universal joint.

4. The tractor according to claim 3, wherein a spline groove is provided on an inner wall of the drive shaft, one end of the spline shaft is disposed in the spline groove, and the spline shaft is retractable in the drive shaft.

5. The tractor according to claim 4, wherein the connecting body is disposed on a center line of the machine head, and the connecting body is connected to an output shaft of the machine head, or is of an integrated structure.

6. The tractor according to claim 5, further comprising a retractable rocker arm disposed on one side of the traction base, one end of the rocker arm being connected to the head and the other end being connected to the trailer, the rocker arm, when retracted, driving the head to turn.

7. The tractor according to claim 6, wherein a rear drive shaft is further provided on the trailer, and one end of the rear drive shaft is connected with one end of the rear drive gearbox, which is away from the bearing seat.

8. The tractor according to claim 7, wherein a rear axle is further provided on the trailer, one end of the rear axle being connected to an end of the rear drive shaft facing away from the rear drive gearbox.

9. The tractor according to claim 8, further comprising a rear axle shaft having one end connected to the rear axle and the other end provided with wheels.

10. The tractor according to claim 9, wherein a cab is further provided on the machine head, a steering wheel is further provided in the cab, and front wheels are further provided on both sides of the machine head.