CN110741784A

CN110741784A - Transmission device for rape seeder

Info

Publication number: CN110741784A
Application number: CN201911182457.8A
Authority: CN
Inventors: 吴明亮; 代振维; 唐叶; 肖瑶; 全伟
Original assignee: Hunan Agricultural University
Current assignee: Hunan Agricultural University
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-02-04
Anticipated expiration: 2039-11-27
Also published as: CN110741784B

Abstract

The invention discloses a transmission device for a rape seeder, wherein a power input shaft and a clutch connecting shaft are pivoted on a rack, the power input shaft is in transmission connection with a first clutch clamping sleeve fixedly sleeved on the clutch connecting shaft, a second clutch clamping sleeve is rotatably sleeved on the clutch connecting shaft, a clutch deflector rod is pivoted with the rack between two ends of the clutch deflector rod, one end of the clutch deflector rod is connected with a pull wire, the other end of the clutch deflector rod is connected with the second clutch clamping sleeve to drive the first clutch clamping sleeve and the second clutch clamping sleeve to be clamped and separated, and the clutch connecting shaft is in transmission connection with a seeding box shaft. On one hand, the invention can interrupt the power input of the sowing box shaft in the process of operating the sowing machine (such as turning and ridge changing) so as to stop the sowing action; meanwhile, on the other hand, the sowing speed can be controlled by adjusting the sowing box shaft through gear shifting, and then the distance between the rapes is adjusted, so that the rape sowing machine can work more flexibly.

Description

Transmission device for rape seeder

Technical Field

The invention belongs to the technical field of agricultural machinery, and particularly relates to a transmission device for a rape seeder.

Background

Rape is a main economic crop in China and is planted in many places in China. The rapeseeds can be used for oil pressing after the rape is mature, and the economic benefit is higher. Rape planting is also needed in mountainous and hilly areas in south China, but the planting area is not concentrated and tends to be planted in blocks, the planting area is large or small, and the planting ridge width and the row spacing are difficult to guarantee.

At present, there are some mechanized automatic rape seeding devices on the market, in which a seeding box loaded with rape seeds is provided on the seeding device, wherein the seeding box drives a seeding wheel inside the seeding box through a through seeding box rotating shaft (one of the seeding principles can refer to the "precision seeding robot" disclosed in chinese patent CN 201811021357.2). However, in the process of sowing operation, the rotation of the rotating shaft of the sowing box cannot be effectively controlled to stop, namely, the input of power is interrupted, the sowing box stops sowing, and meanwhile, the sowing speed cannot be effectively adjusted.

Disclosure of Invention

The invention aims to provide a transmission device for a rape seeder, thereby solving the problems.

In order to achieve the purpose, the invention discloses a transmission device for a rape seeder, which comprises a frame, a power input shaft, a pull wire, a first clutch sleeve, a second clutch sleeve, a clutch shift lever, a clutch connecting shaft and a seeding box shaft penetrating into a seeding box of the rape seeder, wherein the power input shaft and the clutch connecting shaft are pivoted on the frame, the power input shaft is in transmission connection with a first clutch sleeve rotatably sleeved on a clutch connecting shaft, the second clutch sleeve is slidably sleeved on the clutch connecting shaft, the clutch deflector rod is pivoted with the machine frame between the two ends of the clutch deflector rod, one end of the clutch shifting rod is connected with the pull wire, the other end of the clutch shifting rod is connected with the second clutch clamping sleeve to drive the first clutch clamping sleeve and the second clutch clamping sleeve to be clamped and separated, and the clutch connecting shaft is in transmission connection with the seeding box shaft.

Furthermore, a boss is arranged on the first clutch clamping sleeve, a groove used for clamping the boss is arranged on the second clutch clamping sleeve, a clamping sleeve chain wheel is arranged on the first clutch clamping sleeve, and the clamping sleeve chain wheel is in chain transmission connection with a power input chain wheel arranged on the power input shaft.

Furthermore, an annular groove is formed in the second clutch clamping sleeve, a shifting fork is clamped on the annular groove, and the shifting fork is hinged to the other end of the clutch shifting rod.

Furthermore, a reset spring and a separation blade are sleeved on the clutch connecting shaft, one end of the reset spring is in contact with the second clutch clamping sleeve, the other end of the reset spring is in contact with the separation blade, and the separation blade is limited through a bolt arranged at the end part of the clutch connecting shaft.

Furthermore, a driving chain wheel group is arranged on the clutch connecting shaft, a driven chain wheel group which can be in chain transmission with the driving chain wheel group is arranged on the sowing box shaft, and a chain gear shifting adjusting rod is further arranged on the rack.

Furthermore, a ratchet mechanism for controlling the drive sprocket group to rotate in one direction is further installed on the clutch connecting shaft.

Furthermore, the ratchet mechanism comprises a ratchet wheel and a pawl, the driving chain wheel group is fixedly connected with the pawl, and the ratchet wheel is fixedly connected with the clutch connecting shaft.

Furthermore, folding connecting frames are detachably hinged to two sides of the rack, driven sowing box shafts are mounted on the folding connecting frames, clamping grooves are formed in the sowing box shafts, and flanges which are clamped or separated along with the rotation of the folding connecting frames are arranged on the driven sowing box shafts; or a flange is arranged on the sowing box shaft, and a clamping groove which is clamped or separated along with the rotation of the folding connecting frame is arranged on the driven sowing box shaft.

Compared with the prior art, the invention has the advantages that:

according to the invention, the clutch device and the gear shifting device are arranged between the power input shaft and the sowing box shaft on the rape sowing machine, so that on one hand, the power input of the sowing box shaft can be interrupted in the process of operating the sowing machine (such as turning and ridge changing), and then the sowing action is stopped; meanwhile, on the other hand, the sowing speed can be controlled by adjusting the sowing box shaft through gear shifting, and then the distance between the rapes is adjusted, so that the rape sowing machine can work more flexibly. The clutch device and the gear shifting mode are simple and convenient, and the gear shifting device is very suitable for single operation in southern mountain and hilly areas.

The present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of a transmission device for a rape seeder, which is disclosed in a preferred embodiment of the present invention;

FIG. 2 is a schematic front view showing that a transmission for a rape seed sowing machine is installed on the rape seed sowing machine according to the preferred embodiment of the present invention;

fig. 3 is a schematic right view of fig. 2.

Illustration of the drawings:

1. a frame; 2. a power input shaft; 3. a pull wire; 4. a first clutch sleeve; 5. a second clutch sleeve; 6. a clutch deflector rod; 7. a clutch connecting shaft; 8. a seeding box; 9. a sowing box shaft; 10. a boss; 11. a groove; 12. a cutting ferrule sprocket; 13. a power input sprocket; 14. a ring groove; 15. a shifting fork; 16. a return spring; 17. a baffle plate; 18. a bolt; 19. a drive sprocket set; 20. a driven sprocket set; 21. a chain gear shifting adjusting rod; 22. a ratchet mechanism; 23. a ratchet wheel; 24. a pawl; 25. a folding connecting frame; 26. a driven sowing box shaft; 27. a card slot; 28. a flange; 29. a speed-regulating handle; 30. a bearing seat; 31. an engine; 32. a speed reducer; 33. a handrail; 34. a drive wheel; 35. a press wheel.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in figures 1-3, the invention discloses a transmission device for a rape seeder, which comprises a frame 1, a power input shaft 2, a pull wire 3, a first clutch sleeve 4, a second clutch sleeve 5, a clutch deflector rod 6, a clutch connecting shaft 7 and a seeding box shaft 9 (a handrail 33, a speed regulating handle 29, a driving wheel 34 and a press wheel 35 are also arranged on the frame 1) which is arranged on the frame 1, the power input shaft 2 is an output shaft of a speed reducer 32, the speed reducer 32 is in belt transmission with a gasoline engine 31, the power input shaft 2 and the clutch connecting shaft 7 are pivoted on the same side of the frame 1 through a bearing seat 30, the power input shaft 2 is in transmission connection with the first clutch sleeve 4 which is rotationally sleeved on the clutch connecting shaft 7, the second clutch sleeve 5 is slidably sleeved on the clutch connecting shaft 7 (the second clutch sleeve 5 and the clutch connecting shaft 7 are matched through a key and a key slot), that is, the second clutch collar 5 can only move axially along the clutch coupling shaft 7 and cannot rotate circumferentially relative to the clutch coupling shaft 7. The clutch deflector rod 6 is similar to a lever and is pivoted with the frame 1 between two ends of the lever, one end of the clutch deflector rod 6 is connected with the pull wire 3, the other end of the clutch deflector rod is connected with the second clutch clamping sleeve 5 to drive the first clutch clamping sleeve 4 and the second clutch clamping sleeve 5 to be clamped and separated, so that the power input of the seeding box shaft 9 can be interrupted in the process of operating the seeder (such as turning and ridge changing), the seeding action is stopped, and the clutch connecting shaft 7 is in transmission connection with the seeding box shaft 9. Specifically, the main bodies of the first clutch cutting ferrule 4 and the second clutch cutting ferrule 5 are sleeve mechanisms, a boss 10 is arranged on the first clutch cutting ferrule 4, a groove 11 used for clamping the boss 10 is arranged on the second clutch cutting ferrule 5, a cutting ferrule chain wheel 12 is arranged on the first clutch cutting ferrule 4, the cutting ferrule chain wheel 12 is in chain transmission connection with a power input chain wheel 13 arranged on the power input shaft 2, when the boss 10 and the groove 11 are not clamped, the cutting ferrule chain wheel 12 drives the first clutch cutting ferrule 4 to idle, after the pull wire 3 controls the boss 10 and the groove 11 to be clamped, the torque of the cutting ferrule chain wheel 12 can be transmitted to the clutch connecting shaft 7 through the second clutch cutting ferrule 5, and then the seeding box shaft 9 is driven to rotate for seeding.

In this embodiment, the second clutch cutting ferrule 5 is provided with the annular groove 14, the annular groove 14 is provided with a shifting fork 15 in a clamping manner, and the shifting fork 15 is hinged to the other end of the clutch shifting rod 6, so that when the second clutch cutting ferrule 5 rotates, the shifting fork 15 can be stably clamped in the annular groove 14 without affecting the operation of the second clutch cutting ferrule 5. In order to enable the second clutch sleeve 5 to be capable of automatically resetting, the clutch connecting shaft 7 is sleeved with a reset spring 16 and a baffle plate 17, the reset spring 16 keeps a compressed state, one end of the reset spring 16 is in contact with the second clutch sleeve 5, the other end of the reset spring is in contact with the baffle plate 17, the baffle plate 17 is limited through a bolt 18 installed at the end part of the clutch connecting shaft 7, and after tension in the stay wire 3 is released, the first clutch sleeve 4 and the second clutch sleeve 5 can keep a clamping state under the action of the reset spring 16.

In this embodiment, in order to realize the speed-adjusting kinetic energy of sowing, the clutch connecting shaft 7 is provided with a driving sprocket group 19, the sowing box shaft 9 is provided with a driven sprocket group 20 which can be driven by the driving sprocket group 19, and the frame 1 is further provided with a chain gear-shifting adjusting rod 21 only, so as to adjust the spacing between rapes, thereby enabling the rape sowing machine to work more flexibly.

Considering that the rape seeding machine needs to linearly retreat in the actual operation process, and the seeding box is not needed for seeding, in the embodiment, the clutch connecting shaft 7 is also provided with a ratchet mechanism 22 for controlling the drive sprocket group 19 to rotate in one direction. Specifically, the ratchet mechanism 22 comprises a ratchet wheel 23 and a pawl 24, the driving sprocket group 19 is fixedly connected with the pawl 24, and the ratchet wheel 23 is fixedly connected with the clutch connecting shaft 7.

In this embodiment, the two sides of the frame 1 are detachably hinged with folding connecting frames 25, so that row seeding transformation of 2, 4, 6 and the like can be realized according to the terrain and the needs of farmers, the seeding row spacing can be changed according to the needs, a single person can lift into hills after disassembly, two bolt hinge points are realized during specific work, a driven seeding box shaft 26 is installed on the folding connecting frames 25, a clamping groove 27 is arranged on the seeding box shaft 9, and a flange 28 which is clamped or separated along with the rotation of the folding connecting frames 25 is arranged on the driven seeding box shaft 26; after the folding connecting frame 25 is folded upwards, the flange 28 is automatically separated along with the rotation, and after the folding connecting frame 25 is laid flat, the flange 28 is automatically clamped into the clamping groove 27, so that the operation is very convenient. Alternatively, the sowing box shaft 9 is provided with a flange 28, and the driven sowing box shaft 26 is provided with a clamping groove 27 which is clamped or separated along with the rotation of the folding connecting frame 25.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A transmission device for a rape seeder is characterized by comprising a rack (1), a power input shaft (2), a pull wire (3), a first clutch clamping sleeve (4), a second clutch clamping sleeve (5), a clutch deflector rod (6), a clutch connecting shaft (7) and a seeding box shaft (9) penetrating into a seeding box (8) of the rape seeder, wherein the power input shaft (2) and the clutch connecting shaft (7) are pivoted on the rack (1), the power input shaft (2) is in transmission connection with the first clutch clamping sleeve (4) which is slidably sleeved on the clutch connecting shaft (7), the second clutch clamping sleeve (5) is slidably sleeved on the clutch connecting shaft (7), the clutch deflector rod (6) is pivoted with the rack (1) between the two ends of the clutch deflector rod, and one end of the clutch deflector rod (6) is connected with the pull wire (3), the other end with second clutch cutting ferrule (5) are connected in order to drive the joint and the separation of first clutch cutting ferrule (4) and second clutch cutting ferrule (5), separation and reunion connecting axle (7) with seeding case axle (9) transmission is connected.

2. The transmission device for the rape seed planter as claimed in claim 1, characterized in that the first clutch sleeve (4) is provided with a boss (10), the second clutch sleeve (5) is provided with a groove (11) for clamping the boss (10), the first clutch sleeve (4) is provided with a sleeve chain wheel (12), and the sleeve chain wheel (12) is chain-driven connected with a power input chain wheel (13) arranged on the power input shaft (2).

3. The transmission device for the rape seeder as claimed in claim 2, wherein the second clutch sleeve (5) is provided with an annular groove (14), a shifting fork (15) is clamped on the annular groove (14), and the shifting fork (15) is hinged with the other end of the clutch shifting rod (6).

4. The transmission device for the rape seed sowing machine as claimed in claim 3, characterized in that a return spring (16) and a baffle plate (17) are sleeved on the clutch connecting shaft (7), one end of the return spring (16) is in contact with the second clutch sleeve (5), the other end of the return spring is in contact with the baffle plate (17), and the baffle plate (17) is limited by a bolt (18) arranged at the end part of the clutch connecting shaft (7).

5. The transmission device for the rape seed sowing machine according to any one of the claims 1 to 4, wherein a driving chain wheel set (19) is arranged on the clutch connecting shaft (7), a driven chain wheel set (20) which can be in chain transmission with the driving chain wheel set (19) is arranged on the sowing box shaft (9), and a chain gear shifting adjusting rod (21) is further arranged on the machine frame (1).

6. The transmission device for the rape seed planter as claimed in claim 5, characterized in that the clutch connecting shaft (7) is further provided with a ratchet mechanism (22) for controlling the drive sprocket set (19) to rotate in one direction.

7. Transmission for rape seed planter according to claim 6, wherein the ratchet mechanism (22) comprises a ratchet wheel (23) and a pawl (24), the drive sprocket set (19) being fixedly connected to the pawl (24), the ratchet wheel (23) being fixedly connected to the clutch connection shaft (7).

8. The transmission device for the rape seeder according to any one of claims 1 to 4, wherein the frame (1) is detachably hinged at both sides with folding connecting frames (25), driven seeding box shafts (26) are mounted on the folding connecting frames (25), clamping grooves (27) are arranged on the seeding box shafts (9), and flanges (28) which are clamped or separated along with the rotation of the folding connecting frames (25) are arranged on the driven seeding box shafts (26); or a flange (28) is arranged on the sowing box shaft (9), and a clamping groove (27) which is clamped or separated along with the rotation of the folding connecting frame (25) is arranged on the driven sowing box shaft (26).