CN106034556A - Stem cutting movable cutter device - Google Patents

Abstract

The invention relates to a movable knife device for cutting stalks, which can effectively solve the problem that the movable knife device is often entangled by dry plant vines and stems in the world during work, causing the rotating part of the shaft frame to heat up, and sand and soil will also enter the rotating part, resulting in the lubrication of the movable knife shaft. Insufficient, which seriously affects the work efficiency. The technical solution is to weld and fix the drive shaft, knife rest and support shaft together in turn. The two ends of the knife rest are respectively equipped with a first sealing cover and a second sealing cover. 1. Axle sleeves are respectively installed on the support shaft, the shaft sleeve on the drive shaft side is equipped with a first shaft cover, and the shaft sleeve on the support shaft side is equipped with a second shaft cover, between the shaft sleeve and the first shaft cover and the second shaft cover Bearings are installed in the groove of the shaft, and sealing gaskets are provided between the bearings, the shaft cover, and the shaft cover. The structure of the invention is novel and unique, and the design is reasonable, which effectively prevents the cane from winding around the moving knife shaft and the problem of sand entering the rotating bearing. It is an innovation in the stem cutting device.

Description

A stem cutting knife device

technical field

The invention relates to the field of agricultural machinery, in particular to a stem cutting movable knife device.

Background technique

The corn combine harvester is a kind of agricultural machinery with both stems and ears. Due to the characteristics of the machine itself, when it is working, the ear-picking rollers stroke off the ears of corn while conveying and squeezing the stalks downwards. The stalks are installed on the ear-picking rollers The movable knife at the bottom of the device cooperates with the fixed knife to chop the stalks. Since the cutting device is very close to the ground, the moving knife device will often be entangled by dry plant vines and stems in the world during work, causing the rotating part of the shaft frame to heat up, and the lubrication will flow out due to heat. In addition, sand and soil will also enter the rotating part and interact with the lubricating fluid Doping, resulting in insufficient lubrication of the moving knife shaft, or even damage, seriously affecting work efficiency. Therefore, the improvement and innovation of the stalk cutting device is an urgent problem to be solved at present.

Contents of the invention

In view of the above situation, in order to solve the defects of the prior art, the object of the present invention is to provide a stalk cutting moving knife device, which can effectively solve the problem that the moving knife device will often be dried up in the sky and earth during work because the cutting device is very close to the ground. Plant vines and stems are entangled, causing the rotating part of the shaft frame to heat up, and the lubrication will flow out due to heat. In addition, sand and soil will also enter the rotating part and mix with the lubricating fluid, resulting in insufficient lubrication or even damage to the moving knife shaft, which seriously affects the working efficiency.

The technical scheme solved by the present invention is to include a driving wheel, a moving knife shaft and a shaft sleeve, the moving knife shaft is composed of a driving shaft, a knife rest and a supporting shaft, and the driving shaft, the knife rest, and the supporting shaft are welded and fixed together sequentially, and the two knife rests The ends are respectively equipped with a first sealing cover and a second sealing cover, and shaft sleeves are respectively installed on the drive shaft and the support shaft. Bearings are installed in the grooves between the shaft cover, the shaft sleeve and the first shaft cover and the second shaft cover, and sealing gaskets are provided between the bearings, the shaft cover, and the shaft cover, and are fixed together with the shaft sleeve by fixing bolts , the drive wheel is fixed on the end of the drive shaft through a flat key set, and the knife holder is equipped with a blade.

The invention has a novel and unique structure and reasonable design. The bearing is sealed by a sealing gasket, installed in the groove between the shaft sleeve and the shaft cover, and fixed to each other by bolts. The staggered design of the groove layers makes the bearing of the moving knife shaft completely in a sealed state when it rotates, which effectively prevents the cane from wrapping around the moving knife shaft and the problem of sand entering the rotating bearing. It is an innovation in the stem cutting device.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a sectional view of Fig. 1 of the present invention.

Fig. 3 is a sectional view of the shaft sleeve structure of the present invention.

Fig. 4 is a front view of the shaft sleeve structure of the present invention.

Fig. 5 is a schematic diagram of the structure of the first shaft cover of the present invention.

Fig. 6 is a side view of the first shaft cover of the present invention.

Fig. 7 is a front view of the second shaft cover of the present invention.

Fig. 8 is a sectional view of the tool holder of the present invention.

In the figure, 1. driving wheel, 2. moving knife shaft, 3. sealing gasket, 4. shaft sleeve, 5. bearing, 6. driving shaft, 7. first sealing cover, 8. bolt, 9. blade, 10 .Knife holder, 11. Long waist hole, 12. Second sealing cover, 13. Support shaft, 14. Ring groove C`, 15. Ring boss D`, 16. Ring boss A, 17. Ring boss C, 18. Threaded hole, 19. Ring groove D, 20. Ring groove B, 21. Ring boss B`, 22. Fixing bolt, 23. First shaft cover, 24. Sleeve, 25. Second Shaft cover.

detailed description

The specific implementation manners of the present invention will be described in further detail below in conjunction with the accompanying drawings.

Provided by Fig. 1-8, the present invention comprises driving wheel, moving knife shaft and axle sleeve, and moving knife shaft 2 is made of driving shaft 6, knife rest 10 and supporting shaft 13, and driving shaft 6, knife rest 10, supporting shaft 13 Welding and fixing together in turn, the first sealing cover 7 and the second sealing cover 12 are respectively installed at the two ends of the tool holder 10, and the shaft sleeve 4 is respectively installed on the driving shaft 6 and the support shaft 13, and the shaft sleeve 4 on the side of the driving shaft 6 The first shaft cover 23 is housed on it, the second shaft cover 25 is housed on the shaft sleeve 4 on the support shaft 13 side, and the bearing 5 is housed in the groove between the shaft sleeve 4 and the first shaft cover 23 and the second shaft cover 25. 5 and the first shaft cover 23 and the second shaft cover 25 are provided with sealing gaskets 3, and are fixed together with the shaft sleeve 4 through the fixing bolt 22, and the driving wheel 1 is fixed on the end of the driving shaft 6 through a flat key set , blade 9 is housed on the knife rest 10.

In order to ensure the use effect, the drive shaft 6 and the support shaft 13 are both made of solid round steel.

The tool holder 10 is a hollow hexagonal prism made of steel plate, and threaded holes 18 are evenly distributed on three spaced facets.

The blades 9 are distributed in 3 pieces/surface on the 3 spaced facets of the tool holder 10, and the 3 blades on each surface are seamlessly connected, and each blade is provided with 3 groups of long waists distributed at equal intervals. Hole 11, every group has 3, and long waist hole 11 corresponds to threaded hole 18 one by one, and blade 9 is fixed on the knife rest 10 through the bolt 8 that passes threaded hole 18, long waist hole 11.

The first sealing cover 7 and the second sealing cover 12 have the same size and shape, and are provided with ring boss A16, ring groove B20, ring boss C17 and ring groove D19, and the shaft sleeve 4 is provided with There are ring boss B`21, ring groove C`14 and ring boss D`15, ring groove B20 matches ring boss B`21, ring boss C17 matches ring groove C`14, The ring groove D19 matches the ring boss D'15.

There is a sleeve 24 in the center of the first shaft cover 23, the diameter of the sleeve 24 is larger than that of the drive shaft 6, and the second shaft cover 25 is a fully sealed structure.

The applicant should point out that the above description is only a preferred embodiment, and is not intended to limit the scope of protection of the application, and any equivalent or equivalent replacement means are essentially the same as the technical solutions of the application. All technical solutions belong to the scope of protection of this application.

The use of the present invention is that when working, the driving wheel of the movable knife device obtains power through belt transmission, drives the knife rest to rotate, and through the relative movement between the movable knife shaft and the fixed knife shaft, the chopping is carried out downward by the ear picking roller. The conveyed corn stalks have long waist holes on the blades, and the length of the stalks can be adjusted by adjusting the protruding length of the blades. During the working process, the bearing is sealed by a sealing gasket, installed in the groove between the shaft sleeve and the shaft cover, and fixed to each other by bolts. In addition, the sealing covers at both ends of the tool holder are interlaced with the special grooves of the shaft sleeve. The design makes the bearing in a sealed state when it rotates, which effectively prevents the cane from wrapping around the moving knife shaft and the problem of sand entering the rotating bearing.

The invention has a novel and unique structure and reasonable design. The bearing is sealed by a sealing gasket, installed in the groove between the shaft sleeve and the shaft cover, and fixed to each other by bolts. The staggered design of the groove layers makes the bearing of the moving knife shaft completely in a sealed state when it rotates, which effectively prevents the cane from wrapping around the moving knife shaft and the problem of sand entering the rotating bearing. It is an innovation in the stem cutting device and has good economical and social benefits.

Claims (6)

1. a stem cutting moving blade device, including driving wheel, movable arbor and axle sleeve, it is characterised in that movable arbor (2) is by driving Axle (6), knife rest (10) and support shaft (13) are constituted, and drive shaft (6), knife rest (10), support shaft (13) are weldingly fixed on one successively Rising, knife rest (10) two ends are respectively provided with the first sealing lid (7), the second sealing lid (12), in drive shaft (6), support shaft (13) It is separately installed with axle sleeve (4), equipped with the first shaft-cup (23) on the axle sleeve (4) of drive shaft (6) side, the axle sleeve of support shaft (13) side (4) equipped with the second shaft-cup (25) on, the groove between axle sleeve (4) and the first shaft-cup (23), the second shaft-cup (25) is built with bearing (5), gasket seal (3) between bearing (5) and the first shaft-cup (23), the second shaft-cup (25), it is equipped with, and through fixing bolt (22) Being fixed together with axle sleeve (4), driving wheel (1) is fixed on drive shaft (6) end, equipped with blade on knife rest (10) through flat key suit (9)。

Stem cutting moving blade device the most according to claim 1, it is characterised in that described drive shaft (6) and support shaft (13) it is filled circles steel to make.

Stem cutting moving blade device the most according to claim 1, it is characterised in that described knife rest (10) is that steel plate is made Hollow hexagonal prism, 3 faceted pebbles separately are evenly equipped with screwed hole (18).

Stem cutting moving blade device the most according to claim 3, it is characterised in that described blade (9) is in knife rest (10) In 3/EDS maps on 3 faceted pebbles separately, seamless between the blade of 3, every face connect, between every blade being provided with etc. Away from 3 groups of long lumbar holes (11) of distribution, often group has 3, and long lumbar hole (11) and screwed hole (18) one_to_one corresponding, blade (9) is through passing Screwed hole (18), the bolt (8) of long lumbar hole (11) are fixed on knife rest (10).

Stem cutting moving blade device the most according to claim 1, it is characterised in that described first sealing lid (7), second Sealing lid (12) size, shape are consistent, it are equipped with ring boss A (16), ring groove B (20), ring boss C (17) and ring recessed Groove D (19), axle sleeve (4) is provided with ring boss B` (21), ring groove C` (14) and ring boss D` (15), ring groove B (20) and ring Boss B` (21) matches, and ring boss C (17) matches with ring groove C` (14), ring groove D (19) and ring boss D` (15) phase Joining should.

Stem cutting moving blade device the most according to claim 1, it is characterised in that described the first shaft-cup (23) center has Sleeve (24), sleeve (24) diameter is more than drive shaft (6) diameter, and the second shaft-cup (25) is all-sealed structure.