CN209572448U - Double knife cutterbar - Google Patents

Abstract

The utility model discloses a kind of double knife cutterbars, including wobble ring driving mechanism, cutting mechanism and bindiny mechanism；Wobble ring driving mechanism includes horizontally disposed transmission shaft, wobble ring component and swinging axle, and wobble ring component is fixed on transmission shaft one end, swinging axle upper end and wobble ring member hinges, and swinging axle lower end and bindiny mechanism are connected；Cutting mechanism includes upper moving knife component, lower moving knife component sum number to pressuring blade device；Bindiny mechanism includes revolving bed, two attachment bases, two adjusting rods and multiple oscillating bearings, revolving bed is fixed on swinging axle lower end, two attachment bases are separately fixed at up and down on moving knife bar one end, two adjusting rod both ends by oscillating bearing respectively with revolving bed upper and lower sides and to be correspondingly connected with seat hinged.The utility model cutting speed is big, and cutting efficiency is high, can reduce the vibration of ceding of Taiwan body, enhance the reliability of machine, prolong its service life, and double acting knife shares a set of wobble ring driving mechanism, simple and compact for structure, at low cost.

Description

Double knife cutterbar

Technical field

The utility model relates to a kind of harvester cutting, especially a kind of harvester cutting with small vibration, stability is good Device belongs to agricultural machinery technological field.

Background technique

Current most of combine harvesters are all made of single knife reciprocating cutter, i.e., it is fixed to install on cutter crossbeam Knife drives one group of moving knife reciprocating to realize cutting function by eccentric block mechanism.In above structure, single action knife is reciprocal The reciprocating impact generated in motion process is big, easily causes ceding of Taiwan body to shake, simultaneously because being driven using eccentric block structure It is dynamic, larger vibration can be also generated, the service life of machine is seriously affected.Further, since cutting blade moves, ledger-plate is fixed, and is put down Equal cutting speed is low, leads to cutter integral cutting low efficiency, to reduce overall operation efficiency.

Utility model content

The purpose of the utility model is to provide a kind of structures, and double acting knife simple, with small vibration, that cutting efficiency is high is reciprocating cuts Cutter.

The utility model is achieved by the following technical programs:

A kind of double knife cutterbar, including wobble ring driving mechanism, cutting mechanism and bindiny mechanism；Wobble ring driving machine Structure includes that horizontally disposed transmission shaft, wobble ring component and swinging axle, both ends of the drive shaft are respectively supported on bearing block, wobble ring component It is fixed on transmission shaft one end, swinging axle upper end and wobble ring member hinges, swinging axle lower end and bindiny mechanism are connected；Cutting mechanism Including upper moving knife component, lower moving knife component sum number to pressuring blade device, upper moving knife component includes upper moving knife bar and is fixed on moving knife bar On multiple upper cutters, lower moving knife component includes lower moving knife bar and multiple lower cutting blades for being fixed on lower moving knife bar, multiple Upper cutter and multiple lower cutting blades constitute multiple cutting pairs, and several pairs of pressuring blade device intervals are fixed on crossbeam, and upper moving knife bar is under Moving knife bar is slidably supported on respectively in several pairs of pressuring blade device cavitys；Bindiny mechanism includes revolving bed, two attachment bases, two adjusting rods With multiple oscillating bearings, revolving bed is fixed on swinging axle lower end, and two attachment bases are separately fixed at moving knife bar one end under On moving knife bar one end, two adjusting rod one end are hinged with revolving bed upper and lower sides respectively by oscillating bearing, and two adjusting rods are another End is by oscillating bearing and to be correspondingly connected with seat hinged.

The purpose of this utility model can also be further realized by following technical measures.

Double knife cutterbar above-mentioned, wherein the wobble ring component includes eccentric shaft and swing seat, eccentric shaft It is fixed on transmission shaft one end, swing seat is supported on eccentric shaft by several pairs of bearings, and swing seat two sides are by bearing and swing The swinging fork two sides of axis upper end are hinged.

Double knife cutterbar above-mentioned, wherein the eccentric angle between the eccentric shaft axis and drive shaft axis α is 15 °~25 °.

Double knife cutterbar above-mentioned, wherein each pair of pressuring blade device cavity forms knife bar sliding rail.

Double knife cutterbar above-mentioned, wherein the revolving bed includes pedestal, pedestal and swinging axle lower end are solid Even, pedestal upper and lower sides, which are respectively perpendicular, extends upper journal and down journal, two adjusting rod one end respectively with upper journal and down journal Hingedly.

The cutter of the utility model uses double acting knife structure, upper cutter and lower cutting blade operating speed phase when work Together, stroke is equal, and the direction of motion carries out reciprocal mirror movements cutting crop on the contrary, therefore its cutting speed is the two of single action knife Times, cutting speed is big, and cutting efficiency is high, and is offset each other impact by the two groups of moving knife of mirror image back and forth, can reduce ceding of Taiwan body Vibration, enhance the reliability of machine, prolong its service life.Double acting knife compares single action knife, knife while stroke is shorter simultaneously The shape of piece is smaller, and quality is lighter, these all further reduced the vibration of ceding of Taiwan body, has been greatly reduced manufacturing cost. In addition, the utility model driving mechanism replaces original eccentric block structure using wobble ring structure, mechanical oscillation are small, and double acting knife is total Realize that double acting knife moves back and forth with a set of wobble ring driving mechanism, and by revolving bed, it is simple and compact for structure, it is at low cost.Two tune The gap between upper cutter and lower cutting blade can be adjusted in pole, guarantee cutting effect, upper journal on revolving bed and Down journal can guarantee that upper moving knife component and lower moving knife component synchronous backward move back and forth.

The advantages of the utility model and feature will carry out diagram reconciliation by the non-limitative illustration of preferred embodiment below It releases, these embodiments, is only provided as an example referring to attached drawing.

Detailed description of the invention

Fig. 1 is the schematic perspective view of the utility model；

Fig. 2 is the structural schematic diagram of the utility model wobble ring component；

Fig. 3 is the assembling structure schematic diagram of pressuring blade device Yu upper and lower moving knife bar.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawings and examples.

As shown in Figure 1, the utility model includes wobble ring driving mechanism 1, cutting mechanism 2 and bindiny mechanism 3.Wobble ring driving machine Structure 1 includes horizontally disposed transmission shaft 11, wobble ring component 12 and swinging axle 13, and 11 both ends of transmission shaft are respectively supported at bearing block 14 On, wobble ring component 12 is fixed on 11 right end of transmission shaft, as shown in Fig. 2, wobble ring component 12 includes eccentric shaft 121 and swing seat 122, eccentric shaft 121 is fixed on 11 right end of transmission shaft, and swing seat 122 is supported on eccentric shaft 121 by two pairs of bearings 123, 122 two sides of swing seat are hinged by bearing 124 and 131 two sides of swinging fork of 13 upper end of swinging axle.Wherein 121 axis of eccentric shaft with Eccentric angle α between 11 axis of transmission shaft is 15 °~25 °, and α is 20 ° in the present embodiment, it is ensured that eccentric shaft 121 preferably passes Torque delivery.13 lower end of swinging axle and bindiny mechanism 3 are connected.

As shown in Figure 1, cutting mechanism 2 includes upper moving knife component 21, lower moving knife component 22 and two pairs of pressuring blade devices 23, it is upper dynamic Knife assembly 21 includes the upper multiple upper cutters 212 moving knife bar 211 and be fixed on moving knife bar 211, and lower moving knife component 22 wraps Include the lower multiple lower cutting blades 222 moving knife bar 221 and be fixed on lower moving knife bar 221, multiple upper cutters 212 and multiple lower dynamic Blade 222 constitutes multiple cutting pairs, and two pairs of intervals of pressuring blade device 23 are fixed on crossbeam 24, and each pair of 23 cavity of pressuring blade device forms knife bar Sliding rail 231, upper moving knife bar 211 and lower moving knife bar 221 are slidably supported on respectively in two pairs of 23 cavitys of pressuring blade device, such as Fig. 3 institute Show.

As shown in Figure 1, bindiny mechanism 3 includes the adjusting rod 33 of attachment base 32, two of revolving bed 31, two and four joint shafts 34 are held, revolving bed 31 includes pedestal 311, and pedestal 311 is connected by fastener and 13 lower end of swinging axle, 311 upper and lower sides of pedestal point Upper journal 312 and down journal 313 are not vertically extended, and two attachment bases 32 are separately fixed at upper moving knife bar 211 by fastener On right end and lower 221 right end of moving knife bar, two 33 right ends of adjusting rod are hinged with upper journal 312 and down journal 313 respectively, left end Respectively with to be correspondingly connected with seat 32 hinged.

Transmission shaft 11 drives eccentric shaft 121 to do eccentric rotational motion around 11 axis of transmission shaft when work, and eccentric shaft 121 drives Swing seat 122 back and forth deflects, and swing seat 122 drives swinging axle 13 around its axis by the swinging fork 131 of 13 upper end of swinging axle again The direction reciprocating rotating shown in arrow along Fig. 1, also reciprocating rotation, last revolving bed 31 pass through two adjusting rods to revolving bed 31 therewith Moving knife component moves back and forth in opposite directions up and down for 33 drives, completes cutting task.

In addition to the implementation, the utility model can also have other embodiments, all to use equivalent replacement or equivalent change The technical solution to be formed is changed, is all fallen in the protection scope of the requires of the utility model.

Claims (5)

1. a kind of double knife cutterbar, it is characterised in that: including wobble ring driving mechanism, cutting mechanism and bindiny mechanism； Wobble ring driving mechanism includes that horizontally disposed transmission shaft, wobble ring component and swinging axle, both ends of the drive shaft are respectively supported at bearing block On, wobble ring component is fixed on transmission shaft one end, swinging axle upper end and wobble ring member hinges, and swinging axle lower end and bindiny mechanism are solid Even；Cutting mechanism includes upper moving knife component, lower moving knife component sum number to pressuring blade device, and upper moving knife component includes upper moving knife bar and consolidates The multiple upper cutters being scheduled on moving knife bar, lower moving knife component include lower moving knife bar and are fixed under multiple on lower moving knife bar Cutting blade, multiple upper cutters and multiple lower cutting blades constitute multiple cutting pairs, and several pairs of pressuring blade device intervals are fixed on crossbeam, on Moving knife bar and lower moving knife bar are slidably supported on respectively in several pairs of pressuring blade device cavitys；Bindiny mechanism include revolving bed, two attachment bases, Two adjusting rods and multiple oscillating bearings, revolving bed are fixed on swinging axle lower end, and two attachment bases are separately fixed at moving knife On bar one end and lower moving knife bar one end, two adjusting rod one end are hinged with revolving bed upper and lower sides respectively by oscillating bearing, and two The adjusting rod other end is by oscillating bearing and to be correspondingly connected with seat hinged.

2. double knife cutterbar as described in claim 1, it is characterised in that: the wobble ring component include eccentric shaft and Swing seat, eccentric shaft are fixed on transmission shaft one end, and swing seat is supported on eccentric shaft by several pairs of bearings, and swing seat two sides are logical It crosses bearing and the swinging fork two sides of swinging axle upper end is hinged.

3. double knife cutterbar as claimed in claim 2, it is characterised in that: eccentric shaft axis and drive shaft axis it Between eccentric angle α be 15 °~25 °.

4. double knife cutterbar as described in claim 1, it is characterised in that: it is sliding that each pair of pressuring blade device cavity forms knife bar Dynamic rail road.

5. double knife cutterbar as described in claim 1, it is characterised in that: the revolving bed includes pedestal, pedestal With swinging axle lower end be connected, pedestal upper and lower sides, which are respectively perpendicular, extends upper journal and down journal, two adjusting rod one end respectively with Upper journal and down journal are hinged.