Corn stalk crushing and packing machine

By installing a pressure lever device in the straw crushing and baling machine, the problem of uneven straw crushing caused by changes in straw moisture content is solved, achieving a stable and efficient straw baling effect, ensuring the uniformity of feed bales and the normal operation of the equipment.

CN224473744UActive Publication Date: 2026-07-10JILIN NAHAI AGRI EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JILIN NAHAI AGRI EQUIP CO LTD
Filing Date
2025-06-27
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing corn stalk crushing and baling machines suffer from uneven feed bale volume and weight due to varying moisture content of the stalks under different seasons and ambient temperatures, affecting product quality and potentially causing blockages and malfunctions.

Method used

A pressure lever device is installed at the junction of the collection box and the pressing box at the end of the straw crushing conveyor. The pressure lever is driven by the crankshaft to move horizontally forward and backward and swing vertically to adjust the straw density and uniformity, so as to ensure the same quality of straw crushing effect.

Benefits of technology

This technology enables the preparation of straw feed bales of equal weight and volume under different conditions, avoiding blockages and improving the operational stability and product quality of the baler.

✦ Generated by Eureka AI based on patent content.

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Abstract

A corn straw crushing and baling machine comprises a frame, wheels, a pickup device, a straw crusher, a straw crushed material conveying device, a straw crushed material briquetting and baling device, a hydraulic system and an electric control system. The improvement is that a straw crushed material pressing and pushing device is additionally arranged at the inlet of the briquetting box. The pressing and pushing device comprises pressing and pushing rods arranged in a row corresponding to the inlet of the briquetting box, a crankshaft for driving the pressing and pushing rods to horizontally advance and retreat and vertically swing at the joint of the collecting box and the briquetting box, a box body assembled with the pressing and pushing rods and the crankshaft, a pressing and pushing rod advancing and retreating slide seat at the front end of the box body and a crankshaft driving mechanism. The positive effect of the utility model is that the pressing and pushing rods in the pressing and pushing device press downward and push backward the straw crushed material falling into the briquetting box, so as to reduce the gap between the crushed materials and improve the uniformity of the materials. When the briquetting box is started to press and push the straw crushed material due to the large humidity and other factors, the same baling machine can be used to produce straw feed packages with equal weight and volume by using straw of different materials.
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Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery, specifically relating to a field crushing and baling machine for converting corn stalks into feed after they mature. Background Technology

[0002] Existing corn stalk baling machines, including frames, wheels, pickups, straw crushers, straw conveying devices, straw briquetting and bundling devices, hydraulic systems, and electrical control systems, are already in widespread use. Although these baling machines are constantly being improved, there are still shortcomings that need to be overcome as users' requirements for work efficiency and bale quality increase. Currently, the most prominent problems reported by users are: due to differences in the season (autumn, spring), ambient temperature, rain, snow, and the dryness and moisture of the work site, the volume and weight of feed bales produced by the same baler vary significantly. This affects the commercial quality of the feed bales. The reason for this is that different straw moisture contents (dryness and wetness) result in different degrees of straw crushing by the same crushing device. Straw fragments with higher moisture content are relatively larger. This causes larger gaps and lower density in the straw fragments conveying channel and the pressing box of the pressure baling device, resulting in feed bales that do not meet the required volume and weight after pressure baling. Larger straw fragments may cause blockages at the connection between the crushing and conveying device and the pressing box, affecting the normal operation of the baler. Utility Model Content

[0003] The purpose of this invention is to provide a corn stalk crushing and baling machine for crushing and baling corn stalks in the field, overcoming the aforementioned shortcomings of existing baling machines.

[0004] The baling machine of this utility model includes a frame, wheels, a pickup, a straw crusher, a straw crushing conveyor, a straw crushing and baling device, a hydraulic system, and an electrical control system.

[0005] The improvement involves installing a pressing and pulling device at the connection point between the end collection box of the straw crushing conveyor and the pressing box in the pressure baling device to press and pull the straw crushing material entering the pressing box. The pressing and pulling device includes: a set of pressing and pulling rods arranged in a row corresponding to the inlet of the pressing box; a crankshaft that drives the pressing and pulling rods to move horizontally forward and backward and vertically at the connection point between the collection box and the pressing box; a housing assembling the pressing and pulling rods and the crankshaft; a crankshaft rotation drive mechanism installed on the baling machine; and a pressing and pulling rod advance and retracting slide mounted on the housing wall at the extension position of the pressing and pulling rods. One end of the pressing and pulling rod is mounted on the crankshaft with bearings inside the housing, and the other end extends out of the housing supported by the slide. The slide has a sliding hole through which the pressing and pulling rods pass.

[0006] The crankshaft rotation drive mechanism includes: a power input gear or pulley fixed to the end of the crankshaft; a hydraulic motor or electric motor mounted on the baler or a drive shaft derived from the output power of the traction tractor; and a power output gear or pulley mounted on the hydraulic motor or electric motor or the drive shaft derived from the traction tractor.

[0007] In this invention, the drive mechanism for the horizontal forward and backward movement and vertical swing of the lever is preferably equipped with a power input gear mounted on the crankshaft end and a hydraulic motor mounted on the housing, wherein the power output gear on the hydraulic motor meshes with the power input gear on the crankshaft.

[0008] The positive effects of this invention are as follows: the added straw crushing and pushing device uses a pressing and pushing rod to press down and push the straw crushed material falling into the pressing box, reducing the gaps between the crushed material and improving the uniformity of the material distribution. When the straw is broken into larger pieces due to factors such as high moisture content, the pressing device is activated, and the corresponding crankshaft speed is adjusted. Through the downward pressing and backward pushing of the pressing and pushing rod, the density and uniformity of the straw entering the pressing box are assisted in adjusting, enabling the same baler to produce straw feed bales of approximately equal weight and volume from straw of different materials. Attached Figure Description

[0009] Figure 1 This is an overall drawing of the packaging machine of this utility model.

[0010] Figure 2 This is an exploded view of the straw crushing and pressing device of this utility model.

[0011] Figure 3 This is a diagram showing the position of the crankshaft's push rod when the crankshaft shaft is in its highest position.

[0012] Figure 4 This is a diagram showing the position of the crankshaft shaft when it is in its final position (farthest from the crankshaft slide).

[0013] Figure 5 This is a diagram showing the position of the crankshaft shaft when it is at its lowest position.

[0014] Figure 6 This is a diagram showing the position of the lever when the crankshaft shaft is in its forward position. Detailed Implementation

[0015] See Figure 1 , Figure 2 The baling machine of this utility model includes a frame 1, wheels 4, a picker 2, a straw crusher 3, a straw crushing conveyor 5, a straw crushing briquetting and straw bale bundling device 6, a hydraulic system, and an electrical control system.

[0016] A straw crushing and pushing device 7 is added at the connection position between the collection box at the end of the straw crushing conveying device 5 and the pressing box in the pressing and bundling device 6. The pressing and pushing device 7 includes: pressing and pushing rods 7-1 arranged in a row corresponding to the inlet of the pressing box; a crankshaft 7-2 that drives the pressing and pushing rods to move horizontally forward and backward and vertically swing relative to the inlet of the pressing box; a housing 7-3 that assembles the crankshaft 7-2 and the pressing and pushing rods 7-1; a pressing and pushing rod forward and backward sliding seat 7-6 installed on the front end of the pressing and pushing rods on the housing 7-3; and a rotation drive mechanism for the crankshaft 7-2 composed of a gear 7-4 installed on the shaft end of the crankshaft extending out of the housing and a hydraulic motor 7-5 installed on the housing.

[0017] The front end of the box body 7-3 extending from the pressure lever 7-1 is connected to the hole opened at the connection position between the collection box and the pressure box via a flange on the box body.

[0018] The pressure lever 7-1 is mounted on the crankshaft 7-2 at one end within the housing 7-3 using bearings arranged at intervals, while the other end extends out of the housing 7-3 supported by a slide block 7-6. The slide block 7-6 has a sliding hole through which the pressure lever 7-1 passes, and is preferably made of engineering plastic (nylon). The two ends of the slide block located on both sides of the pressure lever 7-1 form a cylindrical shape, and are fitted onto the housing 7-3 by bushings that are fixed to the housing 7-3 and mate with the cylinders at both ends of the slide block 7-6.

Claims

1. A corn stalk crushing and baling machine, comprising a frame, wheels, a pickup, a stalk crusher, a stalk fragment conveying device, a stalk fragment briquetting and stalk block bundling device, a hydraulic system, and an electrical control system. Its characteristics are: At the connection point between the end collection box of the straw crushing conveying device and the pressing box in the pressure baling device, a pressing and pushing device for the straw crushing entering the pressing box is provided. The pressing and pushing device includes: a set of pressing and pushing rods arranged in a row corresponding to the inlet of the pressing box; a crankshaft that drives the pressing and pushing rods to move horizontally forward and backward and vertically swing at the connection between the collection box and the pressing box; a housing for assembling the pressing and pushing rods and the crankshaft; a crankshaft rotation drive mechanism installed on the baling machine; and a pressing and pushing rod advance and retreat slide mounted on the housing wall at the extension position of the pressing and pushing rods. One end of the pressing and pushing rod is mounted on the crankshaft with bearings inside the housing, and the other end extends out of the housing through the slide. The slide has a sliding hole through which the pressing and pushing rods pass.

2. The corn stalk crushing and baling machine according to claim 1, characterized in that: The crankshaft rotation drive mechanism that drives the lever to move horizontally forward and backward and to swing vertically includes: a power input gear mounted on the crankshaft end outside the housing, a hydraulic motor mounted on the housing, and a power output gear on the hydraulic motor meshing with the power input gear on the crankshaft.