CN203289883U - Universal chassis for seeder matched with mini tiller - Google Patents

Abstract

The utility model discloses a general chassis of a seeder matched with a tiller, which comprises a draw bar (2), a frame adjustment fixing bar (3), a frame (4) and a profiling column (29); the draw bar ( 2) Adjust the fixed rod (3) for the rack in the middle; The third crossbar (25) in the middle of the frame (4) is connected; the profiling column (29) is connected with the frame (4) through the second pin (10), and the profiling column (29) and the frame (4) are two They can swing relative to each other, and the left and right swing angle is 0-13°. The general chassis of the seeder of the utility model is designed with a simple profiling mechanism to solve the problem that other seeder chassis have no profiling mechanism or have a four-link profiling mechanism but are complex in structure and difficult to adjust.

Description

A universal chassis of seeder matched with micro tillage machine

technical field

The utility model relates to an agricultural machine tool, in particular to a sowing machinery structure in the field of agricultural machinery, which is a general chassis structure of the sowing machinery matched with a tiller and a walking tractor. the

Background technique

Existing seeders matched with tillage machines and walk-behind tractors generally consist of hitch devices, racks, transmission devices, ground wheels, seeding devices (or fertilization devices), ditch openers, soil covering devices, and suppression devices. . The hitch, frame, transmission, ground wheel and their arrangement form the basic structure of the seeder, which is called the seeder chassis. Various other seeding devices, fertilizing devices, ditch openers, soil covering devices, and suppression devices are connected on the chassis to form a seeder for sowing different crops. The type and structural characteristics of micro tillage machines and walking tractors determine that the matching seeders need to be simplified in structure, compact in size and light in weight. Generally, there is no power lifting device similar to four-wheel tractors. The existing matching seeder structure scheme does not fully consider the functions and structural characteristics of the tiller and walking tractor, resulting in an unreasonable structure. The main components of the chassis for sowing different crops are not universal, and the economy is poor; the sowing chassis structure scheme is poor in versatility, has few functions, and the arrangement of parts is difficult. There is no special plant spacing conversion device, and it is difficult to change the sowing plant spacing; even without the chassis profiling mechanism, the sowing performance is poor , the seeding depth cannot be controlled, and it is inconvenient to use and adjust. the

Utility model content

The technical problem to be solved by the utility model is to provide a universal seeder chassis matched with a micro tiller aiming at the deficiencies of the prior art. the

The utility model adopts the following technical solutions:

A general-purpose chassis for a seeder matched with a tiller, including a draw bar (2), a frame adjustment fixing bar (3), a frame (4) and a profiling column (29); the middle arrangement of the draw bar (2) Frame adjustment fixing rod (3); the rear part of the drawbar (2) is connected with the profiling column (29) through the first pin (9), and the profiling column (29) is connected with the frame (4) through the second pin (10) The third crossbar (25) in the middle is connected; the profiling column (29) is connected with the frame (4) through the second pin (10), and the profiling column (29) and the frame (4) can be relatively Swing, left and right swing angle 0 ~ 13 °. the

The universal chassis of the seeder, the middle part of the frame (4) is fixed with a trapezoidal frame (28), on which is connected the plant-to-plant distance changing device (6), and the sowing plant-to-plant distance is realized through the plant-to-plant distance changing joystick (21); the frame ( 4) There is a sowing device connection plate (8) at the rear to fix the sowing device. the

In the universal chassis of the seeder, a first cross bar (23) and a second cross bar (24) are arranged between the seeding device connecting plates (8). the

The general chassis of the seeder, the toothed ground wheel (11) is fixed on the frame (4) with U-shaped bolts (19). the

The general chassis of the seeder, the frame adjustment fixed rod (3) has a ball head at one end, which is connected to the ball head holder (14) through the spring (16), and the ball head is on the ball head holder (14) There is room for activities. the

The universal chassis of the seeder of the utility model is designed with a simple profiling mechanism to solve the problem that other seeder chassis have no profiling mechanism or have a four-link profiling mechanism but are complex in structure and difficult to adjust; the upper part of the chassis is designed with a special The plant-to-plant distance changing device solves the difficulty of changing the plant-to-plant distance for sowing. By designing the plant-to-plant distance changing device as the intermediate stage of the transmission scheme, it solves the problem that the center distance of the chain transmission between the ground wheel of the other sowing chassis and the sowing device is too large, such as chain bite in the non-sprocket tensioning device. , the problem of chain drop; the chassis scheme designed by the utility model is light, simple and compact, leaving sufficient space for the seeding device and other devices, and can be easily adjusted to match a variety of seeders to sow a variety of crops, which solves the problem of micro The main parts of the sowing chassis supporting the cultivator are not universal, the economy is poor, the functions are few, and the parts are difficult to arrange. the

Description of drawings

Fig. 1 is the side view of the universal chassis of the utility model planter;

Fig. 2 is the top view of the universal chassis of the utility model seeder;

Fig. 3 is the rear view of the universal chassis of the utility model seeder;

Fig. 4 is the partially enlarged view of the universal chassis of the utility model seeder;

1. Hitching frame, 2. Draw bar, 3. Rack adjustment and fixing rod, 4. Frame, 5. The first transmission chain, 6. Plant spacing conversion device, 7. The second transmission chain, 8. Seeding device connecting plate, 9. The first pin, 10. The first pin Second pin, 11 toothed ground wheel, 12 bearing fixed plate, 13 bearing, 14 ball head fixed seat, 15 hitch pin, 16 spring, 17 third pin, 18 sprocket, 19 U-shaped bolt, 20 input sprocket, 21 Plant distance conversion joystick, 22 output sprocket, 23 first crossbar, 24 second crossbar, 25 third crossbar, 26 fourth crossbar, 27 ground wheel axle, 28 trapezoidal frame, 29 profiling column, 30 profiling Adjustment bolt. the

Detailed ways

Below in conjunction with specific embodiment, the utility model is described in detail. the

Referring to Fig. 1 to Fig. 4, the universal chassis of the seeder supporting the micro tillage machine provided by the utility model, the chassis includes a hitch frame 1, a draw bar 2, a frame adjustment fixing rod 3, a frame 4, a ground wheel shaft 27, a chain Wheel 18, first drive chain 5, input sprocket 20, distance between plants 6, output sprocket 22, second drive chain 7, sowing device connecting plate 8, trapezoidal frame 28, profiling column 29, toothed ground wheel 11 , bearing fixing plate 12, bearing 13, ball head holder 14, articulated pin 15, spring 16, the third pin 17, the first pin 9, the second pin 10. the

The hitch frame 1 and the drawbar 2 are welded together, and the frame adjustment fixed rod 3 is arranged in the middle of the drawbar 2, which is connected by the third pin 17; The column 29 is connected with the third crossbar 25 in the middle of the frame 4 through the second pin 10, providing the required traction force for the advance of the seeder chassis;

The profiling column 29 is connected with the frame 4 through the second pin 10. The profiling column 29 and the frame 4 can swing relative to each other, and the left and right swing angle can reach 0-13°. The swing angle is limited, and the lateral profiling angle of the seeder chassis can be easily adjusted to meet the working conditions of the precision seeder with a lateral inclination of 0-11°. the

The middle part of the frame 4 is fixed with a trapezoidal frame 28, which is connected to the plant-to-plant distance changing device 6, and the plant-to-plant distance can be changed quickly through the plant-to-plant distance changing joystick 21. There are a series of gear sets with variable speed ratios inside the plant-to-plant distance changing device 6, and a neutral gear is provided. , can reliably cut off the sowing power; there is a sowing device connecting plate 8 at the rear of the frame 4, on which the sowing device can be fixed by bolts; between the sowing device connecting plates 8, there are a first cross bar 23 and a second cross bar 24, which The top can be fixed with ditch opener, earth covering device, supporting wheel, and pressing wheel; the sprocket 18, the first transmission chain 5 and the input sprocket 20 constitute the first-stage chain drive, and the output sprocket 22 is matched with the second chain 7 and the back of the chassis The sprocket wheel of the seeder constitutes the second-stage chain transmission; the two-stage transmission is connected by the plant-to-plant distance conversion device 6 . the

The toothed ground wheel 11 in the middle and lower part of the frame 4 is fixed on the frame 4 through the bearing 13, the bearing seat fixing plate 12, and the U-shaped bolt 19, so that the relative position of the ground wheel shaft 27 and the plant-to-plant distance conversion device 6 is fixed, and the transmission center distance is shortened. , to prevent chain biting and chain dropping;

Ball head holder 14 is connected with the 4th cross bar 26 with bolt, and frame adjustment fixed rod 3 one ends have ball head, pass spring 16 and be connected on the ball head holder 14, and ball head has in ball head holder 14 li. Activity space, this structure can effectively reduce the impact of ground bumps on the chassis, and provide a certain amount of longitudinal profiling for the sowing chassis;

The sprocket wheel 18 on the ground wheel shaft 27 is connected with the input sprocket wheel 20 on the plant-to-plant distance conversion device 6 through the first transmission chain 5, and the output sprocket wheel 22 on the plant-to-plant distance conversion device 6 is connected with the sowing device. The center distance makes the transmission mechanism compact and does not need to be equipped with a chain tensioner;

There is sufficient space at the rear of frame 4, which can match various seeding devices and other devices;

The whole chassis is connected on the tiller through the hitch frame 1 and the hitch pin 15;

Adjust the frame and adjust the fixed rod 3 to achieve balance according to the matching seeding device (or combined with a fertilization device), ditch opener, soil covering device, and suppression device behind the chassis, and adjust the plant-to-plant distance conversion on the plant-to-plant distance conversion device 6 according to the agronomic requirements. The joystick 21 reaches the corresponding requirements, and the chassis transmits power to the plant-to-plant distance conversion device 6 through the toothed ground wheel 11, the ground wheel shaft 27, the sprocket 18, the first transmission chain, and the input sprocket 20, and then through the output sprocket 22, the second transmission Chain 7 transmits the power and the speed ratio that seed sorting needs. The whole chassis has compact structure, simple transmission, convenient coupling and quick adjustment. the

It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should belong to the protection scope of the appended claims of the present utility model. the

Claims (5)

1. One kind with the supporting sower universal chassis of mini-size tillage machine, it is characterized in that, comprise that draw bar (2), frame adjust dead lever (3), frame (4) and profiling column (29); Draw bar (2) intermediate arrangement frame is adjusted dead lever (3); Draw bar (2) rear portion is connected with profiling column (29) by the first pin (9), and profiling column (29) is connected with the 3rd cross bar (25) at frame (4) middle part by the second pin (10); Profiling column (29) connects with frame (4) by the second pin (10), and profiling column (29) can swing between the two relatively with frame (4), 0～13 ° of the angle that swings.
2. 2. sower universal chassis according to claim 1, is characterized in that, described frame (4) middle part is fixed with ladder frame (28), connects spacing in the rows shifter (6) on it, by spacing in the rows conversion control stick (21), realizes conversion sowing spacing in the rows; There are seeding apparatus connecting plate (8), fixedly seeding apparatus in frame (4) rear portion.
3. 3. sower universal chassis according to claim 2, is characterized in that, the first cross bar (23), the second cross bar (24) are set between described seeding apparatus connecting plate (8).
4. 4. sower universal chassis according to claim 1, is characterized in that, band tooth land wheel (11) is fixed on frame (4) with U bolt (19).
5. 5. sower universal chassis according to claim 1, is characterized in that, described frame is adjusted dead lever (3) one ends bulb, passes spring (16) and is connected on bulb holder (14), and bulb has activity space in bulb holder (14).

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