Seeding transmission system of rotary tillage seeder

Abstract

The utility model discloses a seeding transmission system of a rotary tillage seeding machine. The seeding transmission system comprises a power connecting device, a right-angle transmission device, a gap bridge structure, a second bevel gear speed changing box, a stepless speed changing box, a third bevel gear speed changing box and a fourth bevel gear speed changing box, one end of the power output shaft supporting pipe is fixedly connected to the center of the end of a driving walking wheel of the driving device. The fourth bevel gear speed changing box is fixedly connected to the outer side of the rear side plate; the continuously variable transmission is arranged in front of the fourth bevel gear transmission; the power connecting device is arranged in front of the continuously variable transmission; the second bevel gear transmission is connected to the input end of the continuously variable transmission; the input end of the right-angle transmission device sleeves the end part of the power output shaft; the gap bridge structure is arranged between the right-angle transmission device and the second bevel gear gearbox; and an output shaft of the fourth bevel gear transmission is connected with an input shaft of a seed distributor in the seeding system. The further improvement is that the first transition shaft supporting shaft sleeve can rotate in the horizontal plane through a fourth bearing. According to the utility model, stable transmission of seeding can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a sowing transmission system of a rotary tillage seeder. Background Art

[0002] The installation of a rotary tillage seeder on agricultural machinery can realize the integrated operation of rotary tillage and sowing, and improve the efficiency of farmland operation. The existing rotary tillage seeder is towed forward and backward by a driving device (the walking direction of the rotary tillage seeder is the forward and backward direction) and provides rotary tillage and sowing power, including a rotary tillage system and a sowing and suppression system; the rotary tillage system is arranged behind the driving device, and the sowing and suppression system is arranged behind the rotary tillage system, including a rear support frame, a sowing system, and a suppression system; the sowing system includes a plurality of seeder units; the rear support frame includes a horizontally flat seeder mounting beam and rear side plates respectively fixedly connected to the two sides of the seeder mounting beam, the front and rear longitudinal direction, and the vertical direction; a plurality of seeder units are fixedly connected to the seeder mounting beam at intervals. A sowing transmission system of a rotary tillage seeder is provided, and the existing rotary tillage seeder is provided with a walking wheel behind the sowing and suppression system. The existing sowing transmission system of a rotary tillage seeder is connected to the center of the end of the walking wheel behind the sowing and suppression system through a flexible shaft, and the sowing transmission system of the rotary tillage seeder is driven by the walking wheel behind the sowing and suppression system. The main defect of the sowing transmission system of this rotary tillage seeder is that when in use, the rear running wheel of the sowing suppression system is dragged and often slips, so that when the rotary tillage seeder moves forward, the rear running wheel of the sowing suppression system does not rotate, the sowing transmission system of the rotary tillage seeder has no power input, and the sowing transmission is unstable. Summary of the invention

[0003] Aiming at the deficiencies of the prior art, the utility model provides a sowing transmission system for a rotary tillage seeder which can significantly improve the stability of the sowing transmission.

[0004] The utility model achieves the technical objectives through the following technical solutions.

[0005] A sowing transmission system for a rotary tillage seeder is arranged in the rotary tillage seeder; the rotary tillage seeder is pulled forward and backward by a driving device (the walking direction of the rotary tillage seeder is the forward and backward direction) and provides rotary tillage and sowing power, including a rotary tillage system and a sowing and suppression system; the rotary tillage system is arranged behind the driving device, and the sowing and suppression system is arranged behind the rotary tillage system, including a rear support frame, a sowing system, and a suppression system; the sowing system includes a plurality of seeder units; the rear support frame includes a transversely arranged seeder mounting beam and rear side plates respectively fixedly connected to both sides of the seeder mounting beam, longitudinally and vertically, and longitudinally; the plurality of seeder units are fixedly connected to the seeder mounting beam at intervals; its improvement The progress is that: the sowing transmission system of the rotary tillage seeder includes a power connection device, a right-angle transmission device, a bridge structure, a second bevel gear gearbox, a continuously variable transmission device, a third bevel gear gearbox, and a fourth bevel gear gearbox; the power connection device includes a power output shaft, a power output shaft support tube, and a first bearing; the power output shaft is supported in the power output shaft support tube through the first bearing; one end of the power output shaft support tube is fixedly connected to the center of the end of the active walking wheel of the driving device, and rotates synchronously with the active walking wheel of the driving device; the fourth bevel gear gearbox is fixedly connected to the outer side of the rear side plate; the continuously variable transmission is arranged at the front end of the rear support frame and in front of the fourth bevel gear gearbox , the inner side of the rear side plate; the power connection device is arranged in front of the continuously variable transmission; the second bevel gear transmission is connected to the input end of the continuously variable transmission; the input end of the right-angle transmission device is sleeved on the end of the power output shaft and rotates synchronously with the power output shaft; the bridge structure is arranged between the right-angle transmission device and the second bevel gear transmission, and includes a first transition shaft, a first transition shaft supporting sleeve, and a bridge support seat; the bridge support seat is fixedly connected to the front support frame of the rotary tillage system between the right-angle transmission device and the second bevel gear transmission; the first transition shaft supporting sleeve is arranged on the bridge support seat, and the first transition shaft is longitudinally and rollingly connected to the first transition shaft supporting sleeve in the front and rear directions; The power output shaft, the output shaft of the continuously variable transmission, and the output shaft of the fourth bevel gear transmission are horizontally laid out and parallel to each other; the output end of the right-angle transmission device is connected to the front end of the first transition shaft through a first universal connecting shaft arranged longitudinally in the front and rear directions; the rear end of the first transition shaft is connected to the input end of the second bevel gear transmission through a second universal connecting shaft arranged longitudinally in the front and rear directions; the input end of the third bevel gear transmission is sleeved on the shaft end of the continuously variable transmission output shaft; the output end of the third bevel gear transmission is connected to the input end of the fourth bevel gear transmission through a second transition shaft arranged longitudinally in the front and rear directions; the output shaft of the fourth bevel gear transmission is connected to the input shaft of the seed distributor in the sowing system.

[0006] As a further improvement of the utility model, a separation gearbox is provided between the second bevel gear gearbox and the continuously variable gearbox, and the separation gearbox is provided with a separation electromagnet to realize clutching.

[0007] As a further improvement of the present invention, the first bearing is a one-way bearing.

[0008] As a further improvement of the utility model, the bridge structure also includes a fourth bearing; a third supporting shaft with a vertical central axis is provided at the lower end of the middle part of the first transition shaft supporting sleeve, which is supported on the upper part of the bridge supporting seat through the fourth bearing, and the first transition shaft supporting sleeve can rotate in a horizontal plane through the fourth bearing; two tension springs are respectively arranged at front and rear longitudinal intervals on both sides of the first transition shaft supporting sleeve, which tighten the first transition shaft supporting sleeve from the four corners of the first transition shaft supporting sleeve respectively.

[0009] Compared with the prior art, the utility model has the following positive effects:

[0010] 1. In the utility model, one end of the power output shaft support tube is fixedly connected to the center of the end of the driving wheel of the driving device, and rotates synchronously with the driving wheel of the driving device. When in use, when the rotary seeder moves forward, the active wheel will not slip, which significantly improves the stability of the sowing transmission.

[0011] 2. A separation gearbox is provided between the second bevel gearbox and the continuously variable gearbox. The separation gearbox is engaged and disengaged by a separation electromagnet and can be engaged and disengaged according to sowing needs.

[0012] 3. The first bearing is a one-way bearing. When the driving wheel of the driving device moves forward, the power output shaft rotates to drive the utility model to work and perform sowing operations; when the driving wheel of the driving device moves backward, the power output shaft does not rotate and the sowing operation stops.

[0013] 4. In the bridge structure of the utility model, the first transition shaft supporting sleeve can rotate in the horizontal plane through the fourth bearing; two tension springs are arranged at intervals in the front and rear longitudinal direction on both sides of the first transition shaft supporting sleeve, and the first transition shaft supporting sleeve is tightened from the four corners of the first transition shaft supporting sleeve respectively. In this way, when the rotary seeder turns, the first transition shaft supporting sleeve rotates in the horizontal plane through the fourth bearing, and will not cause distortion at the first transition shaft, thereby protecting the bridge structure and further improving the stability of the sowing transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the power connection device in the utility model viewed from another direction.

[0016] Figure 3 It is an enlarged three-dimensional structural schematic diagram of the bridge structure in the utility model.

[0017] Figure 4 The utility model is a reduced three-dimensional structural schematic diagram of the rotary tillage seeder viewed from the rear to the front.

[0018] Figure 5 The utility model is a reduced three-dimensional structural schematic diagram of the rotary tillage seeder viewed from the front to the back. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0020] Attached Figure 1 The sowing transmission system of the rotary tillage seeder is arranged in the rotary tillage seeder and combined with the attached Figure 2-5 For explanation, the rotary tillage seeder is towed forward and backward (the rotary tillage seeder moves in the forward and backward direction) by a driving device and provides power for rotary tillage and sowing, including a rotary tillage system 1 and a sowing and suppression system 2; the rotary tillage system 1 is arranged behind the driving device, and the sowing and suppression system 2 is arranged behind the rotary tillage system 1, including a rear support frame 40, a sowing system, and a suppression system; the sowing system includes a plurality of seeder units 28.

[0021] The rear support frame 40 includes a horizontally placed seeder mounting beam 41 and rear side plates 42 respectively fixedly connected to both sides of the seeder mounting beam 41 and arranged vertically in the front and rear longitudinal directions; a plurality of seeder units 28 are fixedly connected to the seeder mounting beam 41 at intervals.

[0022] The sowing transmission system of the rotary tillage seeder includes a power connection device 61, a right-angle transmission device 62, a bridge structure 63, a second bevel gear transmission 64, a separation transmission 65, a continuously variable transmission 67, a third bevel gear transmission 68, and a fourth bevel gear transmission 69.

[0023] The power connection device 61 includes a power output shaft 611, a power output shaft support tube 612, and a first bearing 613. In this embodiment, the first bearing 613 is a one-way bearing; the power output shaft 611 is supported in the power output shaft support tube 612 through the first bearing 613; one end of the power output shaft support tube 612 is fixedly connected to the center of the end of the active running wheel of the driving device, and rotates synchronously with the active running wheel of the driving device.

[0024] The fourth bevel gear transmission case 69 is fixedly connected to the outer side of the rear side plate 42 .

[0025] The continuously variable transmission 67 is disposed at the front end of the rear support frame 40 , in front of the fourth bevel gear transmission 69 , and inside the rear side plate 42 .

[0026] The power connection device 61 is arranged in front of the continuously variable transmission 67 .

[0027] The separation gearbox 65 is connected to the input end of the continuously variable transmission 67, the second bevel gear gearbox 64 is connected to the input end of the separation gearbox 65, and the separation gearbox 65 is provided with a separation electromagnet 651 to achieve clutch (in other embodiments, the second bevel gear gearbox 64 is connected to the input end of the continuously variable transmission 67, and the separation gearbox 65 and the separation electromagnet 651 are not provided).

[0028] The input end of the right-angle transmission device 62 is sleeved on the end of the power output shaft 611 and rotates synchronously with the power output shaft 611.

[0029] The bridge structure 63 is arranged between the right-angle transmission device 62 and the second bevel gear transmission gearbox 64, and includes a first transition shaft 633, a first transition shaft support sleeve 632, and a bridge support seat 631; the bridge support seat 631 is fixedly connected to the front support frame of the rotary tillage system 1 between the right-angle transmission device 62 and the second bevel gear transmission gearbox 64; the first transition shaft support sleeve 632 is arranged on the bridge support seat 631, and the first transition shaft 633 is longitudinally and rollingly connected to the first transition shaft support sleeve 632. In this embodiment, A fourth bearing 635 is provided on the upper part of the bridge support seat 631; a third supporting shaft with a vertical central axis is provided at the lower end of the middle part of the first transition shaft supporting sleeve 632, which is supported on the upper part of the bridge support seat 631 through the fourth bearing 635. The first transition shaft supporting sleeve 632 can rotate in a horizontal plane through the fourth bearing 635; two tension springs 634 are provided on both sides of the first transition shaft supporting sleeve 632, which are arranged longitudinally at intervals front and back, and tighten the first transition shaft supporting sleeve 632 from the four corners of the first transition shaft supporting sleeve 632 respectively.

[0030] The power output shaft 611, the output shaft 671 of the continuously variable transmission 67, and the output shaft of the fourth bevel gear transmission 69 are horizontally arranged and parallel to each other.

[0031] The output end of the right-angle transmission device 62 is connected to the front end of the first transition shaft 633 through a first universal joint shaft 621 arranged longitudinally in the front and rear directions; the rear end of the first transition shaft 633 is connected to the input end of the second bevel gear box 64 through a second universal joint shaft 641 arranged longitudinally in the front and rear directions.

[0032] The input end of the third bevel gearbox 68 is sleeved on the shaft end of the output shaft 671 of the continuously variable transmission 67; the output end of the third bevel gearbox 68 is connected to the input end of the fourth bevel gearbox 69 through a second transition shaft 681 arranged longitudinally front and rear.

[0033] The output shaft of the fourth bevel gearbox 69 is connected to the input shaft of the seed distributor in the sowing system.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A sowing transmission system for a rotary tillage seeder, arranged in the rotary tillage seeder; characterized in that: The sowing transmission system of the rotary tillage seeder comprises a power connection device (61), a right-angle transmission device (62), a bridge structure (63), a second bevel gear transmission (64), a continuously variable transmission (67), a third bevel gear transmission (68), and a fourth bevel gear transmission (69); The power connection device (61) comprises a power output shaft (611), a power output shaft support tube (612), and a first bearing (613); the power output shaft (611) is supported in the power output shaft support tube (612) via the first bearing (613); one end of the power output shaft support tube (612) is fixedly connected to the center of the end of the driving wheel of the driving device, and rotates synchronously with the driving wheel of the driving device; The fourth bevel gear transmission (69) is fixedly connected to the outside of the rear side plate (42); The continuously variable transmission (67) is arranged at the front end of the rear support frame (40), in front of the fourth bevel gear transmission (69), and on the inner side of the rear side plate (42); The power connection device (61) is arranged in front of the continuously variable transmission (67); The second bevel gear transmission (64) is connected to the input end of the continuously variable transmission (67); The input end of the right-angle transmission device (62) is sleeved on the end of the power output shaft (611) and rotates synchronously with the power output shaft (611); The bridge structure (63) is arranged between the right-angle transmission device (62) and the second bevel gear transmission (64), and comprises a first transition shaft (633), a first transition shaft support sleeve (632), and a bridge support seat (631); the bridge support seat (631) is fixedly connected to a front support frame of the rotary tillage system (1) between the right-angle transmission device (62) and the second bevel gear transmission (64); the first transition shaft support sleeve (632) is arranged on the bridge support seat (631), and the first transition shaft (633) is longitudinally and rollingly connected to the first transition shaft support sleeve (632) in a front-to-back direction; The power output shaft (611), the output shaft (671) of the continuously variable transmission (67), and the output shaft of the fourth bevel gear transmission (69) are horizontally arranged and parallel to each other; The output end of the right-angle transmission device (62) is connected to the front end of the first transition shaft (633) via a first universal connecting shaft (621) arranged longitudinally in the front and rear directions; the rear end of the first transition shaft (633) is connected to the input end of the second bevel gear transmission box (64) via a second universal connecting shaft (641) arranged longitudinally in the front and rear directions; The input end of the third bevel gear transmission (68) is sleeved on the shaft end of the output shaft (671) of the continuously variable transmission (67); the output end of the third bevel gear transmission (68) is connected to the input end of the fourth bevel gear transmission (69) via a second transition shaft (681) arranged longitudinally in the front and rear directions; The output shaft of the fourth bevel gearbox (69) is connected to the input shaft of the seed distributor in the sowing system.

2. The sowing transmission system of the rotary tillage seeder according to claim 1, characterized in that: A separation gearbox (65) is provided between the second bevel gear gearbox (64) and the continuously variable gearbox (67), and the separation gearbox (65) is provided with a separation electromagnet (651) for achieving clutching.

3. The sowing transmission system of the rotary tillage seeder according to claim 1 or 2, characterized in that: The first bearing (613) is a one-way bearing.

4. The sowing transmission system of the rotary tillage seeder according to claim 3, characterized in that: The bridge structure (63) further includes a fourth bearing (635); a third supporting shaft with a vertical central axis is provided at the middle lower end of the first transition shaft supporting sleeve (632), and is supported on the upper part of the bridge supporting seat (631) through the fourth bearing (635); the first transition shaft supporting sleeve (632) can rotate in a horizontal plane through the fourth bearing (635); two tension springs (634) are respectively provided on both sides of the first transition shaft supporting sleeve (632) and are arranged longitudinally at intervals in the front and rear, and the first transition shaft supporting sleeve (632) is tightened from the four corners of the first transition shaft supporting sleeve (632).

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