CN210371731U

CN210371731U - Planetary gear transmission structure of agricultural machinery

Info

Publication number: CN210371731U
Application number: CN201921337785.6U
Authority: CN
Inventors: 郑春玲; 张文; 周运成
Original assignee: Zhejiang Liulin Agricultural Machinery Co ltd
Current assignee: Zhejiang Liulin Agricultural Machinery Co ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-04-21
Anticipated expiration: 2029-08-16

Abstract

The utility model belongs to the technical field of agricultural machine, in particular to agricultural machine's planetary gear transmission structure, include by the rotatory annular drive gear of agricultural machine power device drive, drive gear's outer peripheral face is provided with a plurality of teeth of a cogwheel, radially is provided with the cross in the drive gear, and the cover is equipped with four bevel pinion on the cross, and the left and right sides of cross is provided with big bevel gear and drive shaft respectively, big bevel gear all with four bevel pinion meshing, big bevel pinion tight fit is in the drive shaft, and the outer end of drive shaft is provided with the brake disc. The utility model provides an agricultural machine's planetary gear transmission structure can make things convenient for more accurate realization speed reduction, turn to and stop operations such as braking.

Description

Planetary gear transmission structure of agricultural machinery

Technical Field

The utility model belongs to the technical field of agricultural machine, in particular to planetary gear transmission structure of agricultural machine.

Background

In order to improve the efficiency of agricultural production, agricultural machinery is widely used in the whole process of sowing and harvesting crops such as wheat and rice. The power device of the traditional agricultural machinery uses a gasoline engine, a diesel engine or an electric motor and the like, the power device often needs to be subjected to operations such as speed reduction, steering and braking when the traditional agricultural machinery is driven to walk, and the control mode of the traditional agricultural machinery is to use a clutch, a shifting fork and other devices in a matching mode. The traditional control mode has the defects that the power source needs to be cut off when the operation is carried out, and then a plurality of operations are carried out, so that the operation is complicated and inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an agricultural machine's planetary gear drive structure, operations such as realization speed reduction, turn to and the brake stop that can facilitate more accurately.

The purpose of the utility model is realized like this: the utility model provides an agricultural machine's planetary gear transmission structure, includes by the rotatory annular drive gear of agricultural machine power device drive, the outer peripheral face of drive gear is provided with a plurality of teeth of a cogwheel, radially is provided with the cross in the drive gear, and the cover is equipped with four little bevel gears on the cross, and the left and right sides of cross is provided with big bevel gear and drive shaft respectively, big bevel gear all with four little bevel gear meshing, big bevel gear tight fit is in the drive shaft, and the outer end of drive shaft is provided with the brake disc.

The agricultural machine is mechanical equipment for agricultural production, such as a bundling machine, a weeding machine, a spraying machine, a cultivator, a harvester, a seeder and the like.

The left driving box and the right driving box are fixedly mounted on two sides of the driving gear, first bearings are assembled in the left driving box and the right driving box, inner rings of the first bearings are tightly matched with gear rods of the bevel pinions, and the bevel pinions are covered and arranged in the left driving box and the right driving box.

The left driving box and the right driving box are different in outer diameter, the left driving box and the right driving box are connected through bolts in a fastening mode, and the driving box with the large outer diameter is connected with the driving gear through bolts in a fastening mode.

The outer sides of the left driving box and the right driving box are provided with driving seats, second bearings are assembled between the inner ends of the driving seats and the outer ends of the left driving box and the right driving box, the outer rings of the second bearings are matched with the inner ends of the driving seats, the inner rings are matched with the outer ends of the left driving box and the right driving box, third bearings sleeved on driving shafts are assembled in the driving seats, the outer rings of the third bearings are matched with the driving seats, and the inner rings are matched with the driving shafts.

An oil seal sleeved on the driving shaft is arranged in the driving seat, and the oil seal is positioned on the outer side of the third bearing.

The brake disc is connected with the driving shaft through a flat key.

Compared with the prior art, the utility model, following beneficial effect has:

the utility model improves the transmission structure of the agricultural machinery, and when the agricultural machinery needs to decelerate, the input power of the power device is reduced to complete the deceleration operation through the transmission of a group of planetary gears; when the agricultural machinery needs to turn, the brake disc on one side is tightly braked to finish the turning operation; when the agricultural machinery needs to be braked and stopped, the power input of the power device is stopped, and the brake discs on two sides are tightly braked to complete the brake and stop operation. Therefore, the power source does not need to be cut off, and the operations of speed reduction, steering, braking and the like can be conveniently and accurately realized.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a cross-sectional view of the present invention.

1, a driving gear; 2. a cross shaft; 3. a bevel pinion gear; 4. a large bevel gear; 5. a drive shaft; 6. a brake disc; 7. a left drive case; 8. a right drive case; 9. a first bearing; 10. a driving seat; 11. A second bearing; 12. a third bearing; 13. and (7) oil sealing.

Detailed Description

The invention will be further described in the following with reference to specific embodiments thereof, with reference to the accompanying drawings, in which figures 1 to 3:

the utility model provides an agricultural machine's planetary gear transmission structure, includes by the rotatory annular drive gear 1 of agricultural machine power device drive, the outer peripheral face of drive gear 1 is provided with a plurality of teeth of a cogwheel, and drive gear 1 internal diameter is provided with cross 2, and the cover is equipped with four small bevel gears 3 on the cross 2, and the left and right sides of cross 2 is provided with big bevel gear 4 and drive shaft 5 respectively, big bevel gear 4 all meshes with four small bevel gears 3, and big bevel gear 4 tight fit is on drive shaft 5, and the outer end of drive shaft 5 is provided with brake disc 6.

The utility model discloses a working method is: when the agricultural machinery moves forwards in a straight line, the power device of the agricultural machinery drives the annular driving gear 1 to rotate, the driving gear 1 drives the small bevel gear 3 assembled in the driving gear 1 to rotate along with the annular driving gear, the small bevel gear 3 drives the large bevel gear 4 to rotate, the large bevel gear 4 drives the driving shaft 5 to rotate, and the driving shaft 5 finally drives the machine wheel to rotate. When the speed needs to be reduced, the input power of the power device is reduced, the rotating speed of the driving gear 1 is reduced along with the input power, and finally the rotating speed of the wheel is reduced, so that the speed reduction operation is realized. When the agricultural machinery needs to turn, the brake disc 6 on one side is braked, the wheel on the side is blocked in advancing, resistance difference is generated between the large bevel gear 4 on the left side and the large bevel gear 4 on the right side, and the small bevel gear 3 rotates to absorb the resistance difference, so that the wheels on the two sides can rotate at different speeds, and the agricultural machinery can turn. When the brake is needed, the power input of the power device is stopped, and the brake disc 6 on two sides is tightly braked to complete the brake operation.

The utility model can be widely used in the mechanical equipment of agricultural production, such as bundling machine, weeding machine, spraying machine, cultivator, harvester, seeder, etc.

The both sides fastening of above-mentioned drive gear 1 install left drive case 7 and right drive case 8, are equipped with first bearing 9 in left drive case 7 and the right drive case 8, and the inner circle of first bearing 9 and the gear pole tight fit of big bevel gear 4, and little bevel gear 3 and big bevel gear 4 cover are established in left drive case 7 and right drive case 8.

The left driving box 7 and the right driving box 8 are tightly fixed with the driving gear 1 in the following mode: left drive case 7 and right drive case 8 have different external diameters, and left drive case 7 and right drive case 8 pass through bolt-up connection, and the big drive case of external diameter passes through bolt and drive gear 1 fastening connection, and through the aforesaid, left drive case 7, right drive case 8 and drive gear 1 obtain more firm installation.

The outside of above-mentioned left side drive box 7 and right drive box 8 is provided with drive seat 10, the inner and left drive box 7 of drive seat 10, be equipped with second bearing 11 between the outer end of right drive box 8, the outer lane of second bearing 11 cooperates with the inner of drive seat 10, inner circle and left drive box 7, the outer end cooperation of right drive box 8, it establishes third bearing 12 on drive shaft 5 to be equipped with the cover in the drive seat 10, the outer lane of third bearing 12 cooperates with drive seat 10, the inner circle cooperates with drive shaft 5, the outside of third bearing 12 inner circle is supported and is leaned on the shaft shoulder, the inboard is passed through retaining ring axial fixity.

An oil seal 13 is arranged in the driving seat 10 and sleeved on the driving shaft 5, and the oil seal 13 is arranged outside the third bearing 12 to enhance the sealing performance of the transmission structure.

The brake disc 6 is connected with the driving shaft 5 through a flat key.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a planetary gear transmission structure of agricultural machinery, its characterized in that includes by rotatory annular drive gear (1) of agricultural machinery power device drive, drive gear (1) internal diameter is provided with cross axle (2), and the cover is equipped with four small bevel gear (3) on cross axle (2), and the left and right sides of cross axle (2) is provided with big bevel gear (4) and drive shaft (5) respectively, big bevel gear (4) all with four small bevel gear (3) meshing, big bevel gear (4) tight fit is on drive shaft (5), and the outer end of drive shaft (5) is provided with brake disc (6).

2. A planetary gear transmission structure of agricultural machinery according to claim 1, characterized in that the left driving box (7) and the right driving box (8) are tightly installed at both sides of the driving gear (1), the first bearing (9) is installed in the left driving box (7) and the right driving box (8), and the inner ring of the first bearing (9) is tightly matched with the gear rod of the large bevel gear (4).

3. A planetary gear transmission structure of an agricultural machine according to claim 2, wherein the left drive box (7) and the right drive box (8) have different outer diameters, the left drive box (7) and the right drive box (8) are fastened and connected by bolts, and the drive box with the larger outer diameter is fastened and connected with the drive gear (1) by bolts.

4. A planetary gear transmission structure of agricultural machinery according to claim 2, wherein the outer sides of the left driving box (7) and the right driving box (8) are provided with driving seats (10), second bearings (11) are arranged between the inner ends of the driving seats (10) and the outer ends of the left driving box (7) and the right driving box (8), and third bearings (12) sleeved on the driving shaft (5) are arranged in the driving seats (10).

5. A planetary gear transmission structure of agricultural machinery according to claim 4, wherein an oil seal (13) sleeved on the driving shaft (5) is arranged in the driving seat (10), and the oil seal (13) is located on the outer side of the third bearing (12).

6. A planetary gearing structure for agricultural machines according to claim 1, characterized in that the brake disc (6) is connected with the driving shaft (5) by a flat key.