CN204305671U - A kind of vertical banana straw millstone - Google Patents

Abstract

The utility model discloses a vertical banana straw crushing device, which comprises a knife shaft, a flywheel, a knife seat, an L-shaped shredding knife and a sheet-shaped cutting knife. A flywheel is arranged on the knife shaft, and several knives are arranged at the lower part of the knife shaft. The knife shaft is connected with the L-shaped smashing knife through the knife seat; the bottom side of the vertical knife surface of the L-shaped smashing knife is an arc-shaped structure, which can reduce the resistance generated after the knife tip contacts the ground during use , to reduce the loss of the blade; several bolt holes are evenly arranged on the vertical blade surface of the L-shaped shredding knife from top to bottom; . The utility model is simple in structure and low in production cost. Aiming at the characteristics of thick banana stalks and high brittleness of banana stems and leaves, the utility model adopts a combination of an L-shaped crushing knife and a sheet-shaped cutting knife, which can effectively solve the problem of uneven crushing of banana stalks. , has the characteristics of good crushing effect and low loss.

Description

A vertical banana straw crushing device

technical field

The utility model belongs to the technical field of agricultural machinery, in particular to a vertical banana straw crushing device.

Background technique

Banana is a monocotyledonous herbaceous plant of Musaceae Musa. It is a famous tropical and subtropical fruit. It is also known as the four major fruits in the world together with apples, grapes and citrus. my country is an important banana producing country, and the production areas are mainly distributed in Guangdong, Guangxi, Hainan, Fujian, Yunnan, Taiwan and other regions. With the continuous development of the banana industry, the main by-product banana straw is also increasing day by day.

Due to ^the relatively tall banana plants, a large number of bananas are produced every year, and agricultural waste such as banana stalks is produced in almost the same amount; The annual biomass of the stem reaches 27 million t. It can be seen that the pseudostem of banana is a kind of bulk agricultural waste in the tropics of China. The utilization of banana straw mainly includes fiber extraction, crushing as livestock feed, and crushing and returning to the field as fertilizer. However, the above three utilization methods account for a very small proportion of the annual banana straw production. In order to make full use of resources and increase the return of green manure to the field for natural rotting or direct incineration. Due to the high content of cellulose, hemicellulose and lignin and high water content of banana straw, it leads to problems such as long decay period and incomplete burning of straw. The remaining straw not only takes up a lot of space for a long time, but also affects agricultural production. Therefore, the straw crushing and returning machine came into being, which can effectively crush the discarded banana straw and increase the utilization rate of banana straw returning to the field.

Straw crushing and returning machines mainly include horizontal machines and vertical machines. Due to reasons such as thick banana straws and a large amount of straw, the crushing quality is poor. Self-purification ability, the consequences are likely to cause a certain degree of soil pollution, which will bring certain negative effects to future operations and production links. At present, the vertical flails commonly used for crushing banana straws mainly include: L-type flails, Y-type flails, and E-type flails. Among them, the Y-type flail and E-type flails are affected by the cutting area, and the impact on the straw The crushing effect is not ideal, and the power consumption of the L-shaped flail is too large, and these flails generally have to be in contact with hard objects such as straw and soil for a long time, causing serious wear on the blade, which in turn affects the crushing effect and reduces the use. life expectancy etc.

Utility model content

The purpose of this utility model is to provide a vertical banana stalk crushing device for the deficiencies in the prior art. Aiming at the characteristics of thick banana stalks, high brittleness of banana stems and leaves, etc., the combination of L-shaped smashing knife and sheet-shaped cutting knife is adopted. The combined body, after two processes of fragmentation and beating, effectively improves the crushing effect of banana straw and increases the utilization rate of returning to the field; and adopts a vertical operation method, which not only reduces the winding of straw fibers on the knife shaft, but also reduces the In the process of work, the damage to the blade body and other problems can effectively increase the work efficiency and reduce the use cost; it has the characteristics of simple structure, low production cost and long service life.

The technical scheme adopted in the utility model:

A vertical banana straw crushing device, including a knife shaft, a flywheel, a knife seat, an L-shaped crushing knife and a sheet-shaped cutting knife. A flywheel is set on the knife shaft, and several knife seats are set at the lower part of the knife shaft. The knife shaft passes through the The knife seat is connected with the L-shape smashing knife, and several sheet-like cutting knives are arranged on the vertical knife surface of the L-shape smashing knife;

The cutter shaft is composed of a rotating shaft and a roller, and a roller is arranged under the rotating shaft, and a flywheel is arranged at the junction of the rotating shaft and the roller by welding, which can increase the rotational inertia of the crushing device; Set several tool holders evenly at the angle;

The knife seat is designed as a hollow structure, and the top and the bottom are respectively provided with bolt holes, and the horizontal knife surface of the L-shaped smashing knife is inserted into the knife seat and connected by bolts;

The bottom side of the vertical knife surface of the L-shaped smashing knife is an arc structure, which can reduce the resistance generated after the tip of the knife contacts the ground during use, and reduce the loss of the blade; Several bolt holes are uniformly arranged on the blade surface from top to bottom;

The vertical blade surface of the sheet-shaped cutting knife and the L-shape smashing knife is connected by bolts.

The utility model is simple in structure and low in production cost. Aiming at the characteristics of thick banana stalks and high brittleness of banana stems and leaves, the utility model adopts a combination of an L-shaped crushing knife and a sheet-shaped cutting knife, which can effectively solve the problem of uneven crushing of banana stalks. , has the characteristics of good crushing effect and low loss.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Among the figure: 1, rotating shaft, 2, flywheel, 3, L-shaped smashing knife, 4, flake cutting knife, 5, knife seat, 6, roller.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and examples, but not as a limitation of the utility model.

In the structure shown in Fig. 1, a kind of vertical banana stalk crushing device provided by the utility model includes a knife shaft, a flywheel, a knife seat, an L-shaped smashing knife and a sheet-shaped cutting knife, and the knife shaft is composed of a rotating shaft 1 and a roller 6, the roller 6 is set under the rotating shaft 1, and the flywheel 2 is arranged by welding at the connection between the rotating shaft 1 and the roller 6, which can increase the rotational inertia of the crushing device; on the roller 6, the roller 6 Several knife seats 5 are evenly arranged at equal angles in the circumferential direction; the knife seats 5 are designed as hollow structures, and bolt holes are respectively provided on the top and the bottom, and the horizontal knife surface of the L-shaped shredding knife 3 is inserted into the knife seats 5 and carried out by bolts. connection; the bottom side of the vertical knife surface of the L-shaped shredding knife 3 is an arc-shaped structure, which can reduce the resistance generated after the tip of the knife contacts the ground during use, and reduce the loss of the blade; the L-shape shredding knife The vertical knife surface of 3 is evenly provided with several bolt holes from top to bottom; The vertical knife surface of described sheet-shaped cutting knife 4 and L-shape smashing knife 3 is connected by bolts.

During installation, the vertical knife face of flake cutting knife 4 and L-shaped smashing knife 3 is connected by bolt; Then the horizontal knife face of L-shaped smashing knife 3 is inserted into knife seat 5 and it is connected with bolts and Fix it, and then connect the rotating shaft 1 on the top of the cutter shaft with the gearbox for use.

The above is only the preferred embodiment of the utility model, and it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the utility model, some improvements and modifications can also be made. And retouching should also be regarded as the protection scope of the present utility model.

Claims (1)

1. A vertical banana stalk crushing device, characterized in that: it comprises a cutter shaft, a flywheel, a knife seat, an L-type smashing knife and a sheet-shaped cutting knife, and the cutter shaft is made of a rotating shaft and a roller, and is placed under the rotating shaft. The roller is installed, and the flywheel is installed by welding at the connection between the rotating shaft and the roller; several knife seats are evenly arranged on the roller at equal angles in the direction of the roller circumference; the knife seats are designed as hollow structures, and the top and bottom are respectively equipped with Bolt hole, insert the horizontal knife surface of the L-shaped smashing knife into the knife seat and connect it through bolts; the bottom side of the vertical knife surface of the L-shaped smashing knife is an arc-shaped structure; Several bolt holes are evenly arranged on the vertical knife surface from top to bottom; the vertical knife surface of the sheet-shaped cutting knife and the L-shaped smashing knife is connected by bolts.