CN216415134U

CN216415134U - Secondary cutting knife device of wheat combine harvester

Info

Publication number: CN216415134U
Application number: CN202121295914.7U
Authority: CN
Inventors: 陈保胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2022-05-03
Anticipated expiration: 2031-06-10

Abstract

The utility model discloses a secondary cutter device of a wheat combine harvester, which comprises a tensioning mechanism, a lifting component, a driving frame, T-shaped steel, a swinging box, a driving component, square steel, a cutter assembly, a cutter protector and a cutter. The utility model belongs to the field of agricultural machinery, and particularly relates to a high-efficiency and environment-friendly secondary cutter device of a combine harvester, which can cut harvested wheat stubble, can adjust the height according to requirements, effectively avoids a feeding system from being blocked, and is high in efficiency and environment-friendly.

Description

Secondary cutting knife device of wheat combine harvester

Technical Field

The utility model belongs to the field of agricultural machinery, and particularly relates to a secondary cutter device of a wheat combine harvester.

Background

At present, wheat straws are prohibited from being burnt in China, so that the pollution to the environment is avoided. The field returning of the straws is vigorously advocated, which is beneficial to soil fertility and crop growth, so that the field returning of the straws becomes a development trend of agricultural cultivation in the future, and the field returning machines with different types and structures are produced at the same time. At present, the height of wheat stubble is limited by 10-12cm in China, so that the length of wheat straw in a harvester bin is 60cm, namely the length of the wheat straw with the effective size of 60cm, firstly, a pulverizer is added, so that the load is increased, the fuel quantity is increased, the oil is wasted, the harvesting speed is slow, secondly, the mechanical abrasion is serious, the service life of a machine is seriously influenced, thirdly, the harvesting table is too much fed, a feeding system is blocked, a vehicle is jammed, the time is wasted in cleaning and maintaining, and the harvesting progress is influenced when the machine is mistakenly worked.

At present, a self-propelled wheat combine harvester only has one cutter, and comprises the steps of harvesting, conveying, threshing, selecting, walking and the like, wheat ears and wheat straws enter during harvesting, and if the wheat straws enter too long, the load of a conveying groove is too large, the threshing effect is poor, and the walking speed is slow. If the wheat straws are too short and the wheat stubbles are too high, the illumination of crops is affected, and the bad phenomenon of the combine harvester can occur at the moment.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides the secondary cutter device of the combine harvester, which is used for cutting the harvested wheat stubble, can adjust the height according to the requirement, effectively avoids the blockage of a feeding system and is efficient and environment-friendly.

In order to realize the functions, the technical scheme adopted by the utility model is as follows: a secondary cutter device of a wheat combine harvester comprises a tensioning mechanism, a lifting component, a driving frame, T-shaped steel, a swinging box, a driving component, square steel, a cutter assembly, a cutter protector and a cutter, wherein the swinging box is fixedly connected with the square steel, the driving component is fixedly connected with the swinging box, the cutter assembly is fixedly connected with the square steel, the cutter protector is fixedly connected with the cutter assembly, the cutter is hinged with the cutter assembly, two ends of the driving frame are respectively fixedly connected with the swinging box and the cutter, the T-shaped steel is fixedly connected with the end part of the square steel, the T-shaped steel is arranged in a T-shaped structure, two groups of the T-shaped steel are symmetrically arranged along the square steel, the lifting component is fixedly arranged at the top of the square steel, the tensioning mechanism is slidably connected with the driving component, the utility model is arranged at the rear part of the harvester, and the swinging box is driven to work by the driving component after a blade is selected for harvesting, utilize the drive frame to drive the cutting knife and shake from top to bottom, reap once more to the wheat stubble after reaping, the wheat straw that cuts off does not advance the storehouse and directly spills to ground, utilizes lifting unit to adjust the height of cutting knife, makes the wheat stubble highly accord with the application demand, and tight mechanism that rises acts on drive assembly, influences the transmission of drive action to rocking the case after avoiding the altitude mixture control.

Further, the drive assembly comprises a transmission shaft at the rear of the harvesting machine platform, two belt stirring wheels of the drive wheel, a transmission wheel and a transmission chain, the transmission shaft at the rear of the harvesting machine platform is fixedly connected with the two belt stirring wheels of the drive wheel, the transmission wheel is fixedly connected with the swinging box, the transmission chain is wound on the outer sides of the two belt stirring wheels of the drive wheel and the transmission wheel, the transmission shaft at the rear of the harvesting machine platform drives the transmission chain to rotate, and the swinging box is driven to work through the transmission wheel.

Further, lifting unit includes drive assembly, threaded rod and thread bush, the thread bush sleeve links to each other with the square steel is fixed, the thread bush is upper end open-ended cavity structure setting, threaded rod bottom slidable runs through the thread bush setting, be equipped with on the inside wall of thread bush with threaded rod matched with internal thread, drive assembly links to each other with the threaded rod is fixed, drives the threaded rod rotation through drive assembly, utilizes threaded rod and thread bush to adjust the cutting knife height.

Furthermore, the tensioning mechanism comprises a balancing weight, a first connecting rod, a second connecting rod, a rotating seat and a tensioning wheel, the tensioning wheel is fixedly connected with the first connecting rod, the balancing weight is fixedly connected with the second connecting rod, the first connecting rod and the second connecting rod are fixedly connected with the rotating seat, the transmission chain is wound on the outer side of the tensioning wheel, the gravity of the balancing weight acts on the transmission chain through the tensioning wheel, the transmission chain keeps tensioning, and the transmission chain is prevented from being loosened due to height adjustment of the cutting knife.

Further, the fixed stopper that is equipped with in threaded sleeve top, the threaded sleeve outside cup joints and is equipped with the spring, the spring is located between stopper and the square steel, and the spring plays the cushioning effect.

Furthermore, a through sliding groove is formed in the T-shaped steel, an installation block is arranged in the sliding groove in a sliding clamping mode, the T-shaped steel is installed and fixed through the installation block, and the angle of the cutter protector after the lifting assembly is adjusted is kept unchanged.

The utility model adopts the structure to obtain the following beneficial effects: the utility model provides a secondary cutting knife device of a wheat combine harvester, which is arranged at the rear part of a header of the harvester, after an original blade is harvested, a driving assembly is utilized to drive a swinging box to work, a driving frame is utilized to drive a cutting knife to vibrate up and down, the harvested wheat stubble is harvested again, the cut wheat straw is not put into a bin and directly falls onto the ground, a lifting assembly is utilized to adjust the height of the cutting knife, so that the height of the wheat stubble meets the application requirement, a tensioning mechanism acts on the driving assembly, the driving effect is prevented from being influenced after the height is adjusted, the transmission of the swinging box is avoided, and the problems of poor wheat stubble control, short service life and large energy consumption of the traditional single harvesting are solved.

Drawings

FIG. 1 is a front view of a secondary cutting knife device of a wheat combine harvester of the utility model;

fig. 2 is a bottom view of the secondary cutting knife device of the wheat combine harvester of the utility model.

The device comprises a tensioning mechanism 1, a lifting assembly 2, a driving frame 3, a T-shaped steel 4, a swinging box 5, a driving assembly 6, a driving assembly 7, square steel 8, a cutting knife assembly 9, a knife protector 10, a cutting knife 11, a transmission shaft behind a harvester table 13, a driving wheel two-belt stirring belt pulley 14, a transmission wheel 15, a transmission chain 16, a driving assembly 18, a threaded rod 19, a threaded sleeve 20, a balancing weight 21, a connecting rod I, a connecting rod II, a connecting rod 23, a rotating seat 24, a tensioning wheel 25, a limiting block 26, a spring 27, a sliding groove 28 and an installation block.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The present invention will be described in further detail with reference to the accompanying drawings.

As shown in figures 1-2, the utility model relates to a secondary cutter device of a wheat combine harvester, which comprises a tensioning mechanism 1, a lifting component 2, a driving frame 3, T-shaped steel 4, a swinging box 5, a driving component 6, square steel 7, a cutter assembly 8, a cutter protector 9 and a cutter 10, the swing box 5 is fixedly connected with the square steel 7, the driving component 6 is fixedly connected with the swing box 5, the cutting knife assembly 8 is fixedly connected with the square steel 7, the knife protector 9 is fixedly connected with the cutting knife assembly 8, the cutting knife 10 is hinged with the cutting knife assembly 8, two ends of the driving frame 3 are respectively fixedly connected with the swinging box 5 and the cutting knife 10, the T-shaped steel 4 is fixedly connected with the end part of the square steel 7, the T-shaped steel 4 is arranged in a T-shaped structure, the T-shaped steel 4 is symmetrically provided with two groups along the square steel 7, the lifting assembly 2 is fixedly arranged at the top of the square steel 7, and the tensioning mechanism 1 is slidably connected with the driving assembly 6.

The driving assembly 6 comprises a reaping machine table rear transmission shaft 11, two belt stirring wheels 13 of a driving wheel, a transmission wheel 14 and a transmission chain 15, the reaping machine table rear transmission shaft 11 is fixedly connected with the two belt stirring wheels 13 of the driving wheel, the transmission wheel 14 is fixedly connected with the swinging box 5, and the transmission chain 15 is wound on the outer sides of the two belt stirring wheels 13 of the driving wheel and the transmission wheel 14.

Lifting unit 2 includes drive assembly 16, threaded rod 18 and threaded sleeve 19, the threaded sleeve is fixed continuous with square steel 7, threaded sleeve 19 sets up for upper end open-ended cavity structures, threaded rod 18 bottom slidable runs through threaded sleeve 19 and sets up, be equipped with on the inside wall of threaded sleeve 19 with threaded rod 18 matched with internal thread, drive assembly 16 links to each other with threaded rod 18 is fixed.

The tensioning mechanism 1 comprises a balancing weight 20, a first connecting rod 21, a second connecting rod 22, a rotating base 23 and a tensioning wheel 24, the tensioning wheel 24 is fixedly connected with the first connecting rod 21, the balancing weight 20 is fixedly connected with the second connecting rod 22, the first connecting rod 21 and the second connecting rod 22 are fixedly connected with the rotating base 23, and the transmission chain 15 is wound on the outer side of the tensioning wheel 24.

The fixed stopper 25 that is equipped with in screw sleeve 19 top, the screw sleeve 19 outside cup joints and is equipped with spring 26, spring 26 is located between stopper 25 and the square steel 7.

The T-shaped steel 4 is provided with a through sliding groove 27, and a mounting block 28 is arranged in the sliding groove 27 in a sliding clamping manner.

When the harvester is used specifically, the harvester is arranged at the rear part of a header of the harvester, after an original blade is harvested, a transmission shaft 11 at the rear part of a harvester platform drives a transmission chain 15 to rotate, a swinging box 5 is driven to work through a transmission wheel 14, a spring 26 plays a role in damping, a driving frame 3 is utilized to drive a cutting knife 10 to vibrate up and down, harvested wheat stubbles are harvested again, and the cut wheat straws are directly scattered to the ground without entering a bin; drive the threaded rod 18 through drive assembly 16 and rotate, utilize threaded rod 18 and threaded sleeve 19 to adjust cutting knife 10 height, make the wheat stubble highly accord with the application demand, utilize the gravity of balancing weight 20 to act on drive chain 15 through tight pulley 24 that rises, make drive chain 15 keep rising tightly, avoid leading to drive chain 15 to relax because of the altitude mixture control of cutting knife 10, it is fixed to utilize installation piece 28 to install T shaped steel 4, make the knife protector 9 angle after lifting unit 2 adjusts remain unchanged.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. A secondary cutting knife device of a wheat combine harvester is characterized in that: including tight mechanism, lifting unit, drive frame, T shaped steel, the case that sways, drive assembly, square steel, cutting knife assembly, knife protector and cutting knife that rises, it is fixed continuous with the square steel to sway the case, drive assembly with sway the case fixed continuous, the cutting knife assembly links to each other with the square steel is fixed, knife protector and cutting knife assembly are fixed continuous, the cutting knife is articulated with the cutting knife assembly, the drive frame both ends respectively with sway the case and the fixed continuous of cutting knife, the end fixing of T shaped steel and square steel links to each other, T shaped steel is T type structure setting, T shaped steel is equipped with two sets ofly along the square steel symmetry, lifting unit fixes locating the square steel top, but tight mechanism and drive assembly sliding connection rise.

2. The secondary cutting knife device of the wheat combine harvester according to claim 1, characterized in that: the driving assembly comprises a transmission shaft at the rear of the harvesting machine table, two belt stirring wheels of a driving wheel, a transmission wheel and a transmission chain, the transmission shaft at the rear of the harvesting machine table is fixedly connected with the two belt stirring wheels of the driving wheel, the transmission wheel is fixedly connected with the swinging box, and the transmission chain is wound on the outer sides of the two belt stirring wheels of the driving wheel and the transmission wheel.

3. The secondary cutting knife device of the wheat combine harvester according to claim 2, characterized in that: the lifting assembly comprises a driving assembly, a threaded rod and a threaded sleeve, the threaded sleeve is fixedly connected with square steel, the threaded sleeve is a hollow cavity structure with an upper end opening, the threaded rod is slidably arranged on the bottom of the threaded sleeve in a penetrating mode, an inner thread matched with the threaded rod is arranged on the inner side wall of the threaded sleeve, and the driving assembly is fixedly connected with the threaded rod.

4. The secondary cutting knife device of the wheat combine harvester according to claim 3, characterized in that: the tensioning mechanism comprises a balancing weight, a first connecting rod, a second connecting rod, a rotating seat and a tensioning wheel, the tensioning wheel is fixedly connected with the first connecting rod, the balancing weight is fixedly connected with the second connecting rod, the first connecting rod and the second connecting rod are fixedly connected with the rotating seat, and the transmission chain is wound on the outer side of the tensioning wheel.

5. The secondary cutting knife device of the wheat combine harvester according to claim 4, characterized in that: the fixed stopper that is equipped with in screw sleeve top, the screw sleeve outside cup joints and is equipped with the spring, the spring is located between stopper and the square steel.

6. The secondary cutting knife device of the wheat combine harvester according to claim 5, characterized in that: the T-shaped steel is provided with a through sliding groove, and an installation block is arranged in the sliding groove in a sliding clamping connection mode.