CN201216162Y - Sugarbeet top cutting apparatus with adjustable cutting thickness - Google Patents

Abstract

The utility model discloses a beet topping device with adjustable cutting thickness, which comprises a transmission mechanism, a cutting mechanism, a cutting thickness regulating mechanism and a contour wheel. A driving chain wheel which is fixedly connected to a frame via a hinge is linked to a driven chain wheel via a chain. The contour wheel in contact with the ground is coaxially mounted relative to the driven chain wheel. The contour wheel, the driven chain wheel and the driving chain wheel are connected as a whole via a rotary arm and can swing around the hinge axis along with the fluctuation of the individual beet. A beet cutting blade is fixed to the linking rod fixing plate of a parallelogram linkage mechanism below the contour wheel. The two rockers of the parallelogram linkage mechanism are hinged to the frame. Either of the two rockers is hinged to the rotary arm via linking rods and the rotary arm is arranged in parallel to the rocker, thereby forming two groups of parallelogram linkage mechanisms. Since the distances between the linking rods where the contour wheel and the cutting blade are located and the rotation centers of the contour wheel and the cutting blade respectively are different, when the rockers and the rotary arm swing at the same angles, the displacements of the contour wheel and the cutting blade in the vertical direction are different, thereby achieving the effect of regulating the cutting thickness.

Description

The beet topping device that a kind of cutting thickness is adjustable

Technical field

The utility model relates to agricultural machinery, especially relates to the adjustable beet topping device of a kind of cutting thickness.

Background technology

Beet is one of the raw material of mainly refining sugar, at China's northern territory establishing in large scale.Beet adds man-hour in sugar refinery, and the leaf tassel and the Lao Pi of its head of necessary first place to go are called and cut head or cut the top.At present, the mode of cutting the top mainly contains two kinds: a kind of is after by manpower beet being extracted from the field, concentrates by the top work of cutting of manually finishing every strain beet with kitchen knife again, and the shortcoming of this operating type is that labour intensity is big, inefficiency; Another kind is the sugar beet combine of integrating of external import cutting the top, excavating, case, it is cut the top mode and cuts for flat, but because the cutter height and position is fixed, its cutting level is constant, cause thus that the beet plant is big, to expose the outer many cutting outputs of soil more, little for the beet plant, expose the situation that the outer few cutting output of soil is less even can't cut.

Summary of the invention

The purpose of this utility model provides the adjustable beet topping device of a kind of cutting thickness, this device can according to beet plant size, spill soil outer what regulate what of excision beet cauline leafs automatically, suitably cut the top to guarantee large and small beet, avoid the situation of cutting more or not cutting, simple in structure, reliable operation.

In order to achieve the above object, the technical solution adopted in the utility model is:

Drive sprocket is connected with frame by first hinge, driving the contour wheel of installing with passive sprocket coaxiality by chain rotates, two ends are contained in the first hinge rotating shaft of drive sprocket respectively and are combined into a planet carrier with being connected with contour wheel with drive sprocket, by movable sprocket by the swing arm in the rotating shaft of movable sprocket, and planet carrier can be around the first hinge shaft swing; The blade that in horizontal plane, tilts with the contour wheel axis place contour wheel below, blade is fixed on the cutter bar fixing plate by " L " type knife bar and knife bar fixed strip; Cutter bar fixing plate is fixed on the first connecting rod of the parallelogram lindage BEFG that is made up of two first, second rocking bars parallel with swing arm, and first, second rocking bar that length is identical is connected with frame by second hinge, the 3rd hinge respectively; The two ends of second connecting rod are contained in respectively on the 4th hinge and the 5th hinge on the swing arm on first rocking bar; Be connected to form two the parallelogram lindage BEFG and the ABCD of two shared first rocking bars by second connecting rod.

Described contour wheel is fixed on the rotating shaft H of rocking bar AD extended line of parallelogram lindage ABCD.

By hinge-coupled be fixed on drive sprocket on the frame by chain gear transmission by movable sprocket, contour wheel that contacts with beet and passive sprocket coaxiality are installed, contour wheel, connected as one by cursor, can rise and fall with the height of beet around the hinge axis swing of drive sprocket by movable sprocket and drive sprocket; The beet cutting blade is fixed on the connecting rod fixed head of a parallelogram lindage below the contour wheel, two rocking bars of parallelogram lindage are hinged on the frame, a rocking bar passes through the cursor of rod hinge connection installation in parallel, form two groups of parallelogram lindages, because contour wheel and blade place connecting rod position are different apart from the distance of center of rotation separately, when the same angle of rocking bar and cursor swing, contour wheel is different in the distance that vertical direction moves past with blade, reaches the purpose of regulating cutting thickness thus.The contour wheel rim speed is about 1.1: 1 with the linear velocity ratio that advances.Blade places the core wheel below, and blade and contour wheel axis are angled in horizontal plane, beet root is formed sliding cutting, and make dead leaf, weeds slippage.

The beneficial effect that the utlity model has is:

Contour wheel is formed one with its chain wheel driving mechanism by swing arm can be around the planet carrier of drive sprocket swing, place the cutting tip of contour wheel bottom, ground to be fixed on by " L " type knife bar on the cutter bar fixing plate on the connecting rod EF of the rocking bar parallelogram lindage BEFG parallel with swing arm, when beet plant size, when height changes, contour wheel rotates on one side around its main shaft on one side and swings around drive sprocket axle with swing arm, drives blade by the parallelogram lindage BEFG that is attached thereto and fluctuates to adjust thickness of cutting.

Description of drawings

Fig. 1 is a side-looking theory structure schematic diagram of the present utility model.

Fig. 2 is that the K of contour wheel among Fig. 1, blade section is to view.

Fig. 3 is the I-I sectional drawing of knife bar standing part among Fig. 1.

Fig. 4 is parallelogram lindage BEFG and ABCD profiling and regulates the mechanical motion principle figure of thickness of cutting.

Among the figure: 1, drive sprocket, 2, chain, 3, swing arm, 4, by movable sprocket, 5, contour wheel, 6, blade, 7, " L " type knife bar, 8, the knife bar fixed strip, 9, cutter bar fixing plate, 10, connecting rod, 11, connecting rod, 12, rocking bar, 13, rocking bar, 14, frame, 15, beet root, 16, screw.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

As shown in Figure 1, drive sprocket 1 of the present utility model is connected with frame 14 by the first hinge A, drive and rotated by chain 2 by movable sprocket 4 coaxial mounted contour wheels 5, two ends are contained in the first hinge A rotating shaft of drive sprocket 1 respectively and are combined into a planet carrier with being connected with contour wheel 5 with drive sprocket 1, by movable sprocket 4 by the swing arm 3 on the rotating shaft H of movable sprocket 4, planet carrier can rise and fall with the height of beet individuality around the hinge axis swing of drive sprocket 1 around the first hinge A shaft swing; Shown in Fig. 2,3, the blade 6 that in horizontal plane, tilts with contour wheel 5 axis place contour wheel 5 below, blade 6 is fixed on the cutter bar fixing plate 9 by " L " type knife bar 7 and knife bar fixed strip 8 usefulness screws 16; Cutter bar fixing plate 9 is fixed on the first connecting rod 10 of the parallelogram lindage BEFG that is made up of two first, second rocking bars 13,12 parallel with swing arm 3, and first, second rocking bar 13,12 that length is identical is connected with frame 14 by the second hinge B, the 3rd hinge G respectively; The two ends of second connecting rod 11 are contained in respectively on the 4th hinge C and the 5th hinge D on the swing arm 3 on first rocking bar 13; Be connected to form two the parallelogram lindage BEFG and the ABCD of two shared first rocking bars 13 by second connecting rod 11.

Described contour wheel 5 is fixed on the rotating shaft H of rocking bar AD extended line of parallelogram lindage ABCD.

Profiling of the present utility model and thickness of cutting Principles of Regulation during operation, are lifted after contour wheel 5 is run into beet root 15 as shown in Figure 4, drive cutting tip 6 and lift, because BEFG is a parallelogram lindage, cutting tip 6 is in state parallel to the ground all the time.Again because ABCD also is a parallelogram lindage, when contour wheel 5 is run into big beet, the axle center H point of contour wheel 5 moves to H ', knife bar fixing point E point moves to E ', obviously, the H point is bigger to the distance of E ' than the E point to the distance of H ', i.e. Δ H＞Δ E, so the vertical that H point and E are ordered apart from becoming big, make blade to the beet top thickness of cutting Hh increase; Otherwise when running into little beet, the vertical distance that H point and E are ordered diminishes, and blade is reduced the thickness of cutting Hh at beet top.Suitably cut thereby reached big beet, little beet is suitably cut but the purpose of avoiding not cutting less more.

In addition, blade 6 blades and contour wheel axis tilt to install in horizontal plane, beet root is formed sliding cutting, and easily make dead leaf, weeds slippage.

Claims (2)

1. beet topping device that cutting thickness is adjustable, it is characterized in that: drive sprocket (1) is connected with frame (14) by first hinge (A), drive and rotated by chain (2) by the coaxial mounted contour wheel of movable sprocket (4) (5), two ends are contained in first hinge (A) rotating shaft of drive sprocket (1) respectively and are combined into a planet carrier with being connected with contour wheel (5) with drive sprocket (1), by movable sprocket (4) by the swing arm (3) in the rotating shaft of movable sprocket (4) (H), and planet carrier can be around first hinge (A) shaft swing; The blade (6) that tilts with contour wheel (5) axis in horizontal plane places the below of contour wheel (5), and blade (6) is fixed on the cutter bar fixing plate (9) by " L " type knife bar (7) and knife bar fixed strip (8); Cutter bar fixing plate (9) is fixed on the first connecting rod (10) of the parallelogram lindage BEFG that is made up of two first, second rocking bars parallel with swing arm (3) (13,12), and first, second rocking bar that length is identical (13,12) is connected with frame (14) by second hinge (B), the 3rd hinge (G) respectively; The two ends of second connecting rod (11) are contained in respectively on the 4th hinge (C) and the 5th hinge (D) on the swing arm (3) on first rocking bar (13); Be connected to form two the parallelogram lindage BEFG and the ABCD of two shared first rocking bars (13) by second connecting rod (11).

2. the adjustable beet topping device of a kind of cutting thickness according to claim 1 is characterized in that: described contour wheel (5) is fixed in the rotating shaft (H) of rocking bar AD extended line of parallelogram lindage ABCD.

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