CN212436467U

CN212436467U - Smashing device of agricultural straw smashing machine

Info

Publication number: CN212436467U
Application number: CN202020855183.6U
Authority: CN
Inventors: 蔡占军; 蔡娟
Original assignee: Ordos Mengkangyuan Biotechnology Research Co ltd
Current assignee: Ordos Mengkangyuan Biotechnology Research Co ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2021-02-02
Anticipated expiration: 2030-05-21

Abstract

The utility model discloses a crushing device of an agricultural straw crusher, which comprises a driving rotating shaft, a driven rotating shaft, a fixed cutter, a movable cutter and a spiral stirring paddle; the driving rotating shaft and the driven rotating shaft are sleeved and mounted and are fixed through a sealing bearing, fixed cutters are arranged on the side wall of the driving rotating shaft at equal intervals and are distributed in a staggered mode along the axial direction of the driving rotating shaft, a cylindrical rod is arranged between the fixed cutters on the same plane, and moving cutters are arranged on the cylindrical rod; the side wall of the driven rotating shaft is provided with a spiral stirring paddle; crushing by arranging a fixed cutter and a movable cutter; by arranging the spiral stirring paddle, the straw which is not completely crushed is thrown to the fixed knife and is crushed again, so that the uniform particle size of the crushed straw is ensured; each part is detachably mounted, so that the parts are convenient to replace and maintain; this application reasonable in design, compact structure smashes effectually, and the particle diameter is even after smashing, easily promotes and uses.

Description

Smashing device of agricultural straw smashing machine

Technical Field

The utility model relates to a rubbing crusher technical field, in particular to agricultural straw rubbing crusher's reducing mechanism.

Background

With the rapid development of agricultural mechanization, domestic agricultural product harvesting is basically mechanized, and most of crops are harvested in a combined mode. The straw crushing equipment is arranged on part of the large-scale combine harvester, the straws of the crops can be crushed by the straw crushing equipment in the harvesting process and are uniformly thrown in the farmland, so that the farmland fertility is increased, the straw combustion phenomenon is avoided, and the environment protection is facilitated.

However, because of the previous agricultural mode in China, the holding capacity of small harvesters is very large, and the small harvesters are not provided with straw smashing equipment, so that harvested straws can be left in farmlands, farmers often adopt a straw burning mode to return the straws to the field, and the environment protection is not facilitated. The straw crushing equipment on the existing large-scale combine harvester is usually complex in structure, the original structure is difficult to be kept, the design is reduced, and the manufacturing cost is high. In addition, the existing straw crushing equipment is originally designed in a large scale, the cutting of the existing straw crushing equipment mainly depends on the inertia of the blade to crush the straw, when the equipment is large, the inertia of the blade is large, the crushing force can completely meet the crushing requirement, if the straw crushing equipment is reduced in equal proportion, the inertia of the blade becomes small, the requirement for crushing the straw is difficult to meet, the crushing effect is poor, the existing sealed crusher is well known in the market, the structure of the crusher is complex, the cleaning, the maintenance and the maintenance are inconvenient, the particle size of the crushed straw is not uniform, the service life and the service state of the crusher are influenced, and the requirement for the modern mechanical development is not met.

Therefore, the applicant has developed a straw shredder suitable for a small-sized harvester, in which a straw shredding system is a very important component which directly determines the performance of the device, and a shredding device is a main component of the straw shredding system, and the structure thereof needs to be designed reasonably.

Disclosure of Invention

The utility model aims to provide a crushing device of an agricultural straw crusher, which is used for crushing by arranging a fixed knife and a movable knife; by arranging the spiral stirring paddle, the straw which is not completely crushed is thrown to the fixed knife and is crushed again, so that the uniform particle size of the crushed straw is ensured; each part is detachably mounted, so that the parts are convenient to replace and maintain; the problems proposed in the background art are effectively solved.

The utility model adopts the technical scheme as follows: a crushing device of an agricultural straw crusher comprises a driving rotating shaft, a driven rotating shaft, a fixed cutter, a movable cutter and a spiral stirring paddle; the device is characterized in that the driving rotating shaft and the driven rotating shaft are sleeved and mounted and are fixed through a sealing bearing, fixed cutters are arranged on the side wall of the driving rotating shaft at equal intervals and are distributed in a staggered mode along the axial direction of the driving rotating shaft, a cylindrical rod is arranged between the fixed cutters on the same plane, and moving cutters are arranged on the cylindrical rod; and a spiral stirring paddle is arranged on the side wall of the driven rotating shaft.

Preferably, the length of the driving rotating shaft is 2 times of the length of the driven rotating shaft.

Preferably, the left end of the driving rotating shaft is provided with a sealing bearing, and the right end of the driven rotating shaft is provided with a sealing bearing.

Preferably, the right end of the driving rotating shaft is provided with a driving gear, the outer side of the sealing bearing of the driven rotating shaft is provided with a driven gear, and the diameter of the reference circle of the driving gear is larger than that of the reference circle of the driven gear.

Preferably, the fixed knife is fixed with the driving rotating shaft through a fastening bolt, the fixed knife is of an arc-shaped structure, and the inner arc surface of the fixed knife is sharp.

Preferably, the cylinder pole is equipped with 1 at least and moves the sword, move the length that the length of sword is less than 1/2 stationary knife, move the sword and be vertical structure, and move the both sides of sword and be sharp.

Preferably, the spiral stirring rake passes through fastening bolt and is fixed with the driven spindle, the spiral stirring rake is half page or leaf, and the spiral stirring rake distributes along driven spindle axial equidistance, the rotation of spiral stirring rake is to rotating to opposite with the stationary knife.

The beneficial effects of the utility model reside in that: the crushing effect is improved by arranging the fixed cutter and the movable cutter to crush; by arranging the spiral stirring paddle, the straw which is not completely crushed is thrown to the fixed knife and is crushed again, so that the uniform particle size of the crushed straw is ensured; each part is detachably mounted, so that the parts are convenient to replace and maintain; this application reasonable in design, compact structure smashes effectually, and the particle diameter is even after smashing, easily promotes and uses.

Drawings

Fig. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic side view of the present invention.

Fig. 3 is a schematic perspective view of the present invention.

Fig. 4 is a schematic cross-sectional structure diagram of the driving shaft and the driven shaft.

Fig. 5 is a schematic perspective view of the stationary knife and the movable knife.

Fig. 6 is a schematic perspective view of a helical paddle.

In the figure: the device comprises a driving rotating shaft 1, a driven rotating shaft 2, a fixed cutter 3, a movable cutter 4, a spiral stirring paddle 5, a sealing bearing 6, a cylindrical rod 7, a driving gear 8, a driven gear 9 and a fastening bolt 10.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings, which are only used for illustrating the technical solutions of the present invention and are not limited.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a crushing device of an agricultural straw crusher comprises a driving rotating shaft 1, a driven rotating shaft 2, a fixed cutter 3, a movable cutter 4 and a spiral stirring paddle 5; the device is characterized in that the driving rotating shaft 1 and the driven rotating shaft 2 are sleeved and mounted, and the length of the driving rotating shaft 1 is 2 times of that of the driven rotating shaft 2 and is fixed through a sealing bearing 6; the left end of the driving rotating shaft 1 is provided with a sealing bearing 6, and the right end of the driven rotating shaft 2 is provided with the sealing bearing 6, so that on one hand, the sealing bearing 6 can prevent straw crushed materials from entering the bearing assembly, and the smooth operation of the bearing assembly is ensured; on the other hand, the sealing bearing 6 can be fixedly connected with the shell of the straw crusher, so that the driving rotating shaft 1 and the driven rotating shaft 2 are more stably installed; the fixed knives 3 are fixed on the side wall of the driving rotating shaft 1 at equal intervals through fastening bolts 10, and the fixed knives 3 are distributed in a staggered mode along the axial direction of the driving rotating shaft 1, so that straws can be uniformly crushed, straw powder is promoted to move rightwards, and blockage is avoided; the fixed knives 3 are of arc-shaped structures, the inner arc surfaces of the fixed knives 3 are sharp, cylindrical rods 7 are welded between the fixed knives 3 on the same plane, moving knives 4 are mounted on the cylindrical rods 7, the moving knives 4 are further crushed by centrifugal force generated by rotation, the number of the moving knives 4 is 1, the length of the moving knives 4 is smaller than that of the 1/2 fixed knives 3, interference between the structures is avoided, the moving knives 4 are of vertical structures, and both sides of the moving knives 4 are sharp; the lateral wall of driven spindle 2 is fixed with spiral stirring rake 5 through fastening bolt 10, spiral stirring rake 5 is half page or leaf, avoids blockking up, and spiral stirring rake 5 distributes along 2 axial equidistance in driven spindle, spiral stirring rake 5 revolve to with stationary knife 3 revolve to opposite, will not totally kibbling straw, from the right side to left jettisonings to stationary knife 3 department and smashes once more, guarantees that the straw is smashed the back particle diameter evenly.

In the utility model, the right end of the driving rotating shaft 1 is provided with the driving gear 8, the outer side of the sealing bearing 6 of the driven rotating shaft 2 is provided with the driven gear 9, the gear transmission is more accurate, the efficiency is high, the structure is compact, the work is reliable, and the service life is long; the reference circle diameter of the driving gear 8 is larger than that of the driven gear 9, so that differential rotation of the driving rotating shaft 1 and the driven rotating shaft 2 can be realized.

The working process of the device is as follows: a professional fixes the shaft end of the crusher and a shell of the straw crusher, straws enter from the left end and are crushed, straw powder moves from left to right, the straw powder meeting requirements is discharged through a sieve plate, the straws which are not completely crushed are thrown to the fixed knife 3 from right to left by the spiral stirring paddle 5 and are crushed again until the particle size meets the requirements; this application reasonable in design, compact structure smashes effectually, and the particle diameter is even after smashing, easily promotes and uses.

Although the present invention has been described in detail with reference to the foregoing examples, it will be apparent to those skilled in the art that various changes and modifications can be made in the embodiments described above, or equivalent changes and modifications can be made to some of the technical features of the embodiments described above, and any changes, equivalents, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A crushing device of an agricultural straw crusher comprises a driving rotating shaft, a driven rotating shaft, a fixed cutter, a movable cutter and a spiral stirring paddle; the device is characterized in that the driving rotating shaft and the driven rotating shaft are sleeved and mounted and are fixed through a sealing bearing, fixed cutters are arranged on the side wall of the driving rotating shaft at equal intervals and are distributed in a staggered mode along the axial direction of the driving rotating shaft, a cylindrical rod is arranged between the fixed cutters on the same plane, and moving cutters are arranged on the cylindrical rod; and a spiral stirring paddle is arranged on the side wall of the driven rotating shaft.

2. The crushing device of an agricultural straw crusher according to claim 1, wherein the length of the driving rotating shaft is 2 times the length of the driven rotating shaft.

3. The crushing device of an agricultural straw crusher according to claim 1, wherein the left end of the driving rotating shaft is provided with a sealing bearing, and the right end of the driven rotating shaft is provided with a sealing bearing.

4. The crushing device of an agricultural straw crusher according to claim 1, wherein a driving gear is provided at the right end of the driving rotating shaft, a driven gear is provided at the outer side of the sealed bearing of the driven rotating shaft, and the reference circle diameter of the driving gear is larger than that of the driven gear.

5. The crushing device of an agricultural straw crusher according to claim 1, wherein the fixed blade is fixed with the driving rotating shaft through a fastening bolt, the fixed blade is of an arc-shaped structure, and the inner arc surface of the fixed blade is sharp.

6. The smashing device of the agricultural straw smashing machine according to claim 1, wherein at least 1 movable knife is arranged on the cylindrical rod, the length of the movable knife is smaller than that of the 1/2 fixed knife, the movable knife is of a vertical structure, and two sides of the movable knife are sharp.

7. The crushing device of an agricultural straw crusher according to claim 1, wherein the spiral stirring paddle is fixed with the driven rotating shaft through a fastening bolt, the spiral stirring paddle is half-page, the spiral stirring paddle is distributed along the driven rotating shaft at equal intervals in the axial direction, and the rotating direction of the spiral stirring paddle is opposite to that of the fixed cutter.