CN201450886U - Mechanical square baler knotter - Google Patents

Abstract

The utility model patent discloses a mechanical square grass baler knotter device applied to a square bale baler, which belongs to the field of mechanical technology. The device drives the tooth plate to rotate counterclockwise through the drive shaft, and the rope clamping primary gear transmission mechanism III moves, and transmits the power to the rope clamping mechanism V to realize the rope and rope clamping; after the primary gear transmission mechanism moves, the tooth plate drives the eagle The mouth gear transmission mechanism II makes the olecranon beak circle around, open mouth, close, and knot; then the cam mechanism I moves, and the rope release lever swings. The rope blade cuts the bundled rope, and the rope release lever will take off the tied knot from the olecranon structure. A variety of mechanical transmission methods are used to realize automatic knotting, and the transmission is precise; each mechanism is installed in the corresponding hole of the frame, the structure is compact, the space of the baler is reduced, and the knotting speed is fast; it can adapt to the fast operation of the baler to meet the needs of the baler. Requirements for harvesting during farming season. The density is high after bundling, which is convenient for long-distance transportation and reuse of straw.

Description

Mechanical square baler knotter

technical field

The utility model relates to a mechanical soft rope knotter applied to a square grass baler, which belongs to the technical field of agricultural machinery.

technical background

Straw is a clean fuel with sulfur content and extremely low carbon content, and it is one of the green renewable energy sources with the greatest potential for development and utilization in new energy sources. In addition to directly returning the straw to the field for use as fertilizer, other uses basically need to be bundled and transported away. The straw bales produced by the domestic round baler baler have irregular shape, unstable size and high loose bale rate, which makes the straw baler poor working stability and low productivity. Because round bales are easy to loosen during transportation, especially in long-distance transportation, take up a lot of space and have high cost, square balers are mostly used at home and abroad. The knotter is the core component of the baler, which is mainly used for baling the picked and compressed straw.

Mechanical soft rope knotters are mainly used at home and abroad, and the soft rope knotters formed abroad mainly include Deering (D type) knotters and Cormic (C type) knotters. In 1967, U.S. 3,416,824 patent EdwinB.Nolt invented a fast knotting device, and the knotting time was no more than one second at a time. The MeCormict company of the United States has improved and designed the C-type knotter on the basis of this knotter. In 1978, U.S. 4,157,063 patent Minke et al. studied a kind of method and device for knotting a new type of binding rope, and Deering Company developed a D-type knotter on this basis. At present, domestic mechanical soft rope knotters are mostly semi-automatic, and full-automatic knotting has not yet been realized. The price of foreign products is relatively high, but their strength is low, and the straight tooth transmission is easy to break.

Contents of the invention

The purpose of the utility model is to provide a mechanical square baler knotter, which can reduce the cost of the baler and increase the service life of the baler. The structure of the knotter includes a cam mechanism I, an olecranon gear transmission mechanism II, a rope clamping primary gear transmission mechanism III, a secondary worm gear transmission mechanism IV, and a rope clamping mechanism V. It is characterized in that the driving chainring 18 passes through The drive plate expansion pin 19 is equipped with a drive extension plate 35, which is installed on the same drive shaft 33 with the frame 20; there is a rolling bearing between the frame 20 and the drive shaft 33, and the frame 20 is relatively fixed on the baler by a pin connection; the cam In the mechanism I, the rope-off lever roller 17 is installed on the rope-off lever 4, and the rope-off lever 4 is installed in the corresponding hole of the frame 20, wherein the rope-cutting blade 3 is installed on the rope-off lever 4; , the knotting nozzle shaft 6 is installed on the frame 20, the first bevel gear 11 and the movable knotting nozzle 5 are installed on the knotting nozzle shaft 6, the small head roller 8 is installed on the movable knotting nozzle 5; the upper jaw 41 is installed on the On the frame 20 outside the small head roller 8; in the primary gear transmission mechanism III of the clamp rope, the tapered shaft 23 is installed on the shaft hole of the frame 20, and the second bevel gear 21 is installed on the tapered shaft 23; the secondary worm gear In the transmission mechanism IV, the worm 29 is installed on the tapered shaft 23; the helical gear 30 is installed on the rope clamp shaft 37; in the rope clamp mechanism V, the rope clamp main board 1 is installed on the rope clamp shaft 37 through the reel sleeve 38 Clamping rope pressing plate 40 is installed on the frame 20, the top is controlled by clamping rope bending pressing plate 24, and clamping rope sheet 27 is fixed in the frame 20 grooves.

The drive toothed disc 18 is made up of outer straight bevel teeth, inner oblique bevel teeth, and a cam structure. Between the hub and the spokes of the drive toothed disc 18, material is removed through the spokes, and the hub adds material to form a cam track.

The frame 20 is a mounting bracket for each transmission mechanism, and its central shaft hole is on the same center line as the driving tooth disc 18 shaft holes, and a small cam mechanism is provided at the installation movable knotting nozzle 5.

Two rope-clamp grooves are evenly distributed in the axial direction of the said clamp main board 1, and four clamp-clip buckles are evenly distributed in the radial direction.

The upper jaw 41 is provided with a concave curved surface.

The beneficial effects of the utility model are:

1) The processing cost is low, the strength is relatively high, and the service life of the knotter is relatively long;

2) Realize automatic knotting;

3) The knotting process is realized by gear transmission, and the transmission is precise;

4) The device has a compact structure, which greatly reduces the space of the baler;

5) The knotting speed is fast, and one knotting can be completed within 1 second.

Description of drawings

Fig. 1 is the mechanism diagram of the knotter of the mechanical square baler of the utility model;

Fig. 2 is the front view of the knotter of the mechanical square baler of the utility model;

Fig. 3 is the left view of the knotter of the mechanical square baler of the utility model;

Fig. 4 is the top view of the knotter of the mechanical square baler of the utility model;

Fig. 5 is the diagram of driving the tooth plate of the knotter of the present invention;

Fig. 6 is the rack diagram of the utility model knotter.

1-clamp main board; 2-hexagonal bolt; 3-cutting blade; 4-rope release lever; 5-movable knotting nozzle; - small gasket of olecranon; 10- first bevel gear expansion pin; 11- first bevel gear; 12- retaining ring; 13- small washer; Circlip with circlip; 17-rope-off rod roller; 18-drive toothed plate; 19-drive tooth plate expansion pin; 20-frame; 21-second bevel gear; 22-olecranon small gasket; 23-cone Shaft; 24-clamp rope bending plate; 25-bent plate hexagonal bolt; 26-hex nut; 27-clamping piece; 28-helical gear expansion pin; Hex nut; 33-drive shaft; 34-shaft barrel; 35-drive extension plate; 36-second bevel gear expansion pin; 37-clamp shaft; 38-rope winding wheel sleeve; Upper jaw; 42-upper jaw compression spring; 43-clip nut; 45-stop washer; 46-lag bolt.

specific implementation plan

The utility model provides a mechanical square baler knotter. The utility model will be further described below in conjunction with the accompanying drawings and specific implementation methods.

Figures 1 to 4 are the mechanism diagram, front view, left view and top view of the knotter of the mechanical square baler of the utility model, respectively. The driving chainring 18 is composed of outer straight bevel teeth, inner bevel bevel teeth and cam structure. The material between the hub and the spokes of the driving chainring 18 is removed through the spokes, and the material is added to the hub to form a cam track. Frame 20 is the mounting bracket of each transmission mechanism, and its central axis hole is on the same center line as the drive chainring 18 axis holes. The drive sprocket 18 is equipped with a drive extension plate 35 through the drive plate expansion pin 19, and is installed on the same drive shaft 33 with the frame 20, and the power is obtained from the drive shaft 33 through a key connection, and it rotates counterclockwise, and is successively transmitted to the primary side of the clamping rope. The gear transmission mechanism III, the olecranon gear transmission mechanism II and the cam mechanism I have rolling bearings between the frame 20 and the drive shaft 33, and the frame 20 is relatively fixed on the baler by pin connection.

Cam mechanism I includes a cam structure for driving toothed disc 18, a rope-off lever roller 17, a small washer 13, and a circlip 16 for the shaft; , the first bevel gear expansion pin 10, the olecranon opening and closing cam mechanism, the upper jaw 41, the upper jaw pressure spring 42; the rope primary gear transmission mechanism III includes the inner tooth profile of the drive toothed disc 18, the second bevel gear 21, the second cone Gear up sales 36.

In the cam mechanism 1, the rope-off lever roller 17 is installed on the rope-off lever 4 through the small washer 13 and the shaft circlip 16, and the rope-off lever 4 passes through the retaining ring 12, the small washer 13, the rope-off lever nut 14, the rope-off lever Rod shaft 15 is installed in the corresponding hole of frame 20, and rope cutting blade 3 is installed on wherein on the rope-breaking lever 4, when roller moved to the cam rear segment, the rope-breaking lever hem, rope cutting knife cuts off the bundled rope after knotting.

In the olecranon gear transmission mechanism II, the olecranon opening and closing mechanism is made up of knotting beak shaft 6, movable knotting mouth 5, olecranon pin 7, small head roller 8, and olecranon small gasket 9. The knotting mouth shaft 6 is installed on the frame 20, the first bevel gear 11 is installed on the knotting mouth shaft 6 through the first bevel gear expansion pin 10, and the movable knotting mouth 5 is installed on the knotting mouth shaft through the olecranon pin 7 6, the small-head roller 8 is installed on the movable knotting nozzle 5 through the olecranon small gasket 9, when the gear is driven, the knotting nozzle shaft 6 rotates, and the small-head roller 8 realizes knotting along the cam curve of the frame 20 The opening and closing of the mouth, thereby completing the knotting of the bundled rope. The upper jaw 41 is installed on the frame 20 outside the small head roller 8 through the upper jaw compression spring 42, the upper jaw nut 43, the stop washer 45, and the lag bolt 46. The upper jaw 41 is provided with a concave surface, and the olecranon small head roller 8 leaves After the small cam mechanism of the frame 20, it moves along the concave curved surface, and the olecranon is closed to bite the rope tightly; when the small head roller 8 rolls along the cam curve of the frame 20, the outer side is controlled by the upper jaw 41 to prevent the rope from being pulled. Small end roller 8 is away from frame 20 cam curves.

In the clamping rope primary gear transmission mechanism III, the tapered shaft 23 is installed on the shaft hole of the frame 20, and the second bevel gear 21 is installed on the tapered shaft 23 through the expansion pin 36 of the second bevel gear.

In the secondary worm and worm gear transmission mechanism IV, the worm 29 is installed on the tapered shaft 23 through the helical gear expansion pin 28, the spring washer 31, and the hexagon nut 32, thereby obtaining power from the clamping rope primary gear transmission mechanism III; the helical gear 30 passes through the helical gear The gear expansion pin 28 is installed on the clamping rope shaft 37, so that the power transmission is given to the clamping rope mechanism V.

In the rope clamping mechanism V, the rope clamping main board 1 is installed on the rope clamping shaft 37 through the reel sleeve 38, the rope clamping main board 1 is evenly distributed with two rope clamping grooves in the axial direction, and four rope clamping buckles are evenly distributed in the radial direction. Every 1/4 turn, can clamp the rope sent by the binding needle; the rope clamping plate 40 is installed on the frame 20, the top is controlled by the clamping rope bending plate 24, and the rope clamping piece 27 is fixed on the frame 20 groove Inside, wherein the clamping rope bending plate 24 is installed on the frame 20 by bending plate hexagonal bolts 25 and hexagonal nuts 26.

During operation, the device transmits power to the drive toothed disc 18 through the drive shaft 33, and the driven toothed disc 18 rotates counterclockwise, the rope clamping primary gear transmission mechanism III moves, and the power is transmitted to the rope clamping mechanism V; at the same time, the baler The rope feeding mechanism sends the bundled rope to the knotter. In the rope clamping mechanism V, the rope bending pressing plate 24 takes the rope, the rope clamping main board 1, the rope clamping sheet 27, and the rope clamping platen 40 clamp the rope. After the primary gear transmission mechanism III moves, the driving chainring 18 transmits power to the olecranon gear transmission mechanism II, so that the olecranon beak can realize ring-wrapping, mouth-opening, closing and knotting actions. After driving tooth plate 18 to transmit power to the olecranon gear transmission mechanism II, the cam mechanism I moves, and the rope release lever 4 swings. When the rope release lever 4 swings down, the rope release lever 4 tightens the bundled rope, and the rope cutting blade 3 at the end cuts it off. Tie up the rope, and then the rope-off bar 4 will take off the knot after being made from the olecranon structure. That is to say, the whole knotting process mainly includes: ① Take the rope - ② Clamp the rope - ③ Wrap around the loop - ④ Open the mouth - ⑤ Close - ⑥ Tension - ⑦ Cut the rope - ⑧ Release.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modification or equivalent replacement of the technical solutions without departing from the spirit and scope of the technical solutions of the present utility model, all of which shall be covered by the scope of the claims of the present utility model.

Claims (5)

1. Mechanical square grass baler knotter, including cam mechanism (I), olecranon gear transmission mechanism (II), rope clamping primary gear transmission mechanism (III), secondary worm gear transmission mechanism (IV), clip The rope mechanism (V) is characterized in that a drive extension plate (35) is installed on the drive toothed plate (18) through a drive plate expansion pin (19), and is installed on the same drive shaft (33) as the frame (20); There is a rolling bearing between the frame (20) and the drive shaft (33), and the frame (20) is relatively fixed on the baler by a pin connection; (4), the rope-off lever (4) is installed in the corresponding hole of the frame (20), wherein the rope-cutting blade (3) is installed on the rope-off lever (4); The knotting shaft (6) is installed on the frame (20), the first bevel gear (11), the movable knotting mouth (5) are installed on the knotting mouth shaft (6), and the small head roller (8) is installed on the movable On the knotting mouth (5); the upper jaw (41) is installed on the frame (20) outside the small head roller (8); in the rope clamp primary gear transmission mechanism (III), the tapered shaft (23) is installed on the frame (20) On the shaft hole, the second bevel gear (21) is installed on the tapered shaft (23); in the secondary worm gear (IV), the worm (29) is installed on the tapered shaft (23); The gear (30) is installed on the rope clamp shaft (37); in the rope clamp mechanism (V), the rope clamp main board (1) is installed on the rope clamp shaft (37) through the reel sleeve (38); the rope clamp pressure plate (40) is installed on the frame (20), and the top is controlled by the clamping rope bending plate (24), and the clamping rope sheet (27) is fixed in the frame (20) groove. 2. The knotter for a mechanical square grass baler according to claim 1, characterized in that, the drive toothed disc (18) is composed of outer straight bevel teeth, inner inclined bevel teeth, and a cam structure, and the drive toothed disc (18) between the hub and the spokes remove material by the spokes, and the hub increases the material to form the cam track. 3. The knotter of the mechanical square grass baler according to claim 1, characterized in that, the frame (20) is a mounting bracket for each transmission mechanism, and its central axis hole is connected with the drive toothed disc (18) The shaft holes are on the same center line, and a small cam structure is arranged at the movable knotting mouth (5) place. 4. The knotter for a mechanical square grass baler according to claim 1, characterized in that, two rope-clamp grooves are evenly distributed in the axial direction of the said clamp-rope main board (1), and four clamps are evenly distributed in the radial direction. cord buckle. 5. The mechanical knotter for a grass baler according to claim 1, characterized in that the upper jaw (41) is provided with a concave curved surface.

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