A low entry cane knife mill top cover for a sugar cane mill

Abstract

The utility model discloses a kind of low entry cane knife machine top cover of sugar cane mill, including top cover body, the top cover body is gradually opened line shape, the minimum distance a of the top cover body end portion corresponding to sugar cane entry to cane knife tip is less than or equal to 300mm, the minimum distance a of the top cover body end portion corresponding to sugar cane entry to cane knife tip is greater than the minimum distance b of the top cover body end portion corresponding to sugar cane exit to cane knife tip, the top cover body end portion corresponding to sugar cane entry is fixedly connected with one end of entry arc plate, the other end of entry arc plate is fixedly connected with one end of entry guide plate. The utility model uses low entry design, avoid broken cane material in entry area repeatedly bouncing and staying, prevent cane material in entry area broken excessively, short fiber after processing is few, it is beneficial to subsequent squeezing process to squeeze more sugar in sugar cane, ensure that squeezing process is continuous, uniform feeding, improve squeezing extraction rate;Make cane knife machine work and continuous feeding more smooth, stable, reduce cane knife machine load, prolong cane knife service life.

Description

Technical Field

[0001] This utility model belongs to the field of sugarcane processing technology, specifically relating to a top cover for a low-entry sugarcane cutter in a sugarcane factory. Background Technology

[0002] Sugarcane crushing machines (with a rotation speed of around 760 rpm) used in sugarcane mills consist of multiple rows of sugarcane blades embedded in a rotary drum (with a certain spacing between the blades). Typically, three crushing machines are connected in series (smaller sugar mills may only have two). Sugarcane usually needs to be crushed three times to meet production requirements. The crushing machine operates with two requirements: breaking and tearing the sugarcane. It needs to shred the sugarcane, separating the fibers from the bran-like sugarcane cells while minimizing fiber breakage (long fibers are crucial for feeding the sugarcane into the press). Therefore, blunt blades are used. The load on the crushing machine is very high, typically with each motor ranging from several hundred kilowatts to over 1000 kilowatts.

[0003] Sugarcane, figuratively speaking, consists of two components: long fibers and bran-like sugarcane cells. Sugar content is found within these cells. Sugarcane crushing requires completely breaking down both the long fibers and the bran-like sugarcane cells. In production, the long fibers act as a network, continuously and evenly feeding the crushed sugarcane into the press. They also act as a framework and unblocking agent, allowing the extracted sugar juice to drain quickly, while simultaneously preventing the bran-like material from flowing out with the juice. In other words, if a large amount of long fibers are broken down, it is detrimental to sugarcane crushing.

[0004] In existing sugarcane cutter machines, after the sugarcane enters the inlet cover, the sugarcane at the inlet is lifted at high speed by the sugarcane blade and impacts the top cover. The top cover has a relatively flat section at the inlet, causing the broken sugarcane pieces that impact the top cover to bounce back. This back-and-forth bounce and stagnation results in the sugarcane being repeatedly chopped by the sugarcane blade in a small area at the inlet, leading to a high proportion of short fibers. This stagnation of sugarcane in this section also hinders the progress of subsequent sugarcane, causing uneven and unstable feeding into the sugarcane cutter, poor juice extraction, increased machine load, and rapid blade wear.

[0005] Therefore, it is essential to develop a top cover for a low-entry sugarcane cutter in a sugarcane factory that prevents sugarcane scraps from bouncing back and forth at the inlet. Utility Model Content

[0006] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a top cover for a low-entry sugarcane cutter in a sugarcane factory, which prevents the crushed sugarcane from bouncing back and forth at the inlet, and solves the problems of high load, rapid wear of the sugarcane cutter, unstable feeding, and high short fiber content that exist in sugarcane cutter crushing sugarcane in sugarcane factories.

[0007] The purpose of this utility model is achieved as follows: it includes a top cover body, which is involute in shape. The minimum distance 'a' between the end of the top cover body corresponding to the sugarcane inlet and the tip of the sugarcane knife is less than or equal to 300 mm, and the minimum distance 'a' between the end of the top cover body corresponding to the sugarcane inlet and the tip of the sugarcane knife is greater than the minimum distance 'b' between the end of the top cover body corresponding to the sugarcane outlet and the tip of the sugarcane knife. The end of the top cover body corresponding to the sugarcane inlet is fixedly connected to one end of the inlet arc plate, and the other end of the inlet arc plate is fixedly connected to one end of the inlet guide plate.

[0008] The entrance arc plate can be a quarter circle arc.

[0009] Preferably, the top cover body, the inlet arc plate, and the inlet guide plate are an integrated structure.

[0010] Preferably, the top cover body, the inlet arc plate, and the inlet guide plate are provided with stiffening plates, which serve as shaping and reinforcing plates.

[0011] Preferably, the thickness of the stiffening plate is 12mm to 20mm.

[0012] Preferably, the rib plate is provided with two rows of distance adjustment rods, one row of distance adjustment rods corresponding to the sugarcane inlet and the other row of distance adjustment rods corresponding to the sugarcane outlet; according to the amount and variety of sugarcane to be processed, the minimum distance 'a' from the end of the top cover body corresponding to the sugarcane inlet to the tip of the sugarcane knife is adjusted by the distance adjustment rods, and the minimum distance 'b' from the end of the top cover body corresponding to the sugarcane outlet to the tip of the sugarcane knife is adjusted.

[0013] The distance adjustment rod is a common combination of a nut and a screw. Specifically, the nut can be fixed in a suitable position on the frame of the sugarcane cutter, and the lower end of the screw is hinged to the reinforcing plate through a connector. The screw and the nut are screwed together to achieve distance adjustment.

[0014] Preferably, a number of shredding strips are provided along the width direction of the bottom of the top cover body near the sugarcane outlet; the adjacent shredding strips can be spaced apart; the shredding strips can be made of square steel, forming a downward convex structure, to improve the shredding effect of the sugarcane.

[0015] Preferably, the number of rolling strips is 4 to 6.

[0016] The beneficial effects of this utility model are as follows: This utility model adopts a low-entry design, which avoids repeated bouncing and stagnation of sugarcane in the inlet area, prevents excessive crushing of the sugarcane in the inlet area, and results in very few short fibers after processing. This is beneficial for the subsequent pressing process to extract more sugar from the sugarcane, ensuring continuous and uniform feeding in the pressing process, improving the pressing extraction rate, and reducing the moisture content of the bagasse so that it can be directly used as fuel, papermaking, etc. This utility model makes the sugarcane cutter's working process and continuous feeding smoother and more stable, reduces the load on the sugarcane cutter, and extends the service life of the sugarcane cutter. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; In the diagram: 1-Top cover body, 2-Sugarcane knife, 3-Inlet arc plate, 4-Inlet guide plate, 5-Rib plate, 6-Distance adjustment rod, 7-Strip rolling, 8-Sugarcane knife machine drum. Detailed Implementation

[0018] The present invention will be further described below with reference to the embodiments and accompanying drawings, but this does not limit the present invention in any way. Any changes or substitutions made based on the teachings of the present invention shall fall within the protection scope of the present invention.

[0019] Example 1 As attached Figure 1 As shown, the top cover of the low-entry cane knife machine in the sugarcane factory in this embodiment includes a top cover body 1. The top cover body 1 is made of Q235 steel plate with a thickness of 20mm. The top cover body 1 is involute. The minimum distance a from the end of the top cover body 1 corresponding to the sugarcane inlet to the tip of the cane knife 2 is 250mm. The minimum distance a from the end of the top cover body 1 corresponding to the sugarcane inlet to the tip of the cane knife 2 is greater than the minimum distance b from the end of the top cover body 1 corresponding to the sugarcane outlet to the tip of the cane knife 2. The end of the top cover body 1 corresponding to the sugarcane inlet is fixedly connected to one end of the inlet arc plate 3, and the other end of the inlet arc plate 3 is fixedly connected to one end of the inlet guide plate 4. After replacing the top cover of the sugarcane cutter machine in this embodiment with the old top cover, the load of the sugarcane cutter machine decreased by 30% to 40%, the service life of the sugarcane cutter was extended by 30% to 40%, short fibers were greatly reduced, and the feeding of the sugarcane cutter machine was also better than before.

[0020] Example 2 The top cover of the low-entry cane knife machine in this embodiment is based on Embodiment 1. The difference between Embodiment 1 and Embodiment 1 is that the minimum distance a from the end of the top cover body 1 corresponding to the sugarcane inlet to the tip of the cane knife 2 is 150mm, and the top cover body 1, the inlet arc plate 3, and the inlet guide plate 4 are an integrated structure.

[0021] Example 3 The top cover of the low-entry sugarcane knife machine in this embodiment is based on embodiment 2. The difference between embodiment 2 and embodiment 2 is that the minimum distance a from the end of the top cover body 1 corresponding to the sugarcane inlet to the tip of the sugarcane knife 2 is 300mm. Multiple ribs 5 with a thickness of 20mm are welded on the top cover body 1, the inlet arc plate 3, and the inlet guide plate 4 to serve as shaping and reinforcing plates.

[0022] Example 4 The top cover of the low-entry sugarcane cutter in this embodiment is based on embodiment 3, but differs from embodiment 3 in that: the rib plate 5 is provided with two rows of distance adjustment rods 6, one row of distance adjustment rods 6 corresponds to the sugarcane inlet, and the other row of distance adjustment rods 6 corresponds to the sugarcane outlet; wherein the distance adjustment rods 6 can be installed at the corresponding positions on the frame of the sugarcane cutter.

[0023] Example 5 The top cover of the low-entry sugarcane cutter in this embodiment is based on embodiment 4, but differs from embodiment 4 in that: four rolling strips 7 are provided along the width direction of the bottom of the top cover body 1 near the sugarcane outlet.

[0024] The working principle and process of this utility model: Sugarcane smoothly slides into the sugarcane cutter through the inlet arc plate 3. With the low inlet design of the involute linear top cover, the sugarcane at the inlet is crushed by the sugarcane cutter 2 and directly sent forward. The crushed sugarcane will not bounce and stagnate repeatedly in the inlet area, which not only avoids excessive crushing of the sugarcane in the inlet area, but also makes the working process of the sugarcane cutter and continuous feeding smoother. After passing through the top cover body 1, the sugarcane is discharged from the sugarcane outlet.

Claims

1. A top cover for a low-entry cane cutter in a sugarcane factory, comprising a top cover body (1), characterized in that... The top cover body (1) is involute. The minimum distance a from the end of the top cover body (1) corresponding to the sugarcane inlet to the tip of the sugarcane knife (2) is less than or equal to 300 mm. The minimum distance a from the end of the top cover body (1) corresponding to the sugarcane inlet to the tip of the sugarcane knife (2) is greater than the minimum distance b from the end of the top cover body (1) corresponding to the sugarcane outlet to the tip of the sugarcane knife (2). The end of the top cover body (1) corresponding to the sugarcane inlet is fixedly connected to one end of the inlet arc plate (3), and the other end of the inlet arc plate (3) is fixedly connected to one end of the inlet guide plate (4).

2. The top cover of the low-entry sugarcane cutter in a sugarcane factory according to claim 1, characterized in that... The top cover body (1), the inlet arc plate (3), and the inlet guide plate (4) are an integrated structure.

3. The top cover of the low-entry sugarcane cutter in a sugarcane factory according to claim 1, characterized in that... The top cover body (1), the inlet arc plate (3), and the inlet guide plate (4) are provided with stiffening plates (5).

4. The top cover of the low-entry sugarcane cutter in a sugarcane factory according to claim 3, characterized in that... The thickness of the stiffening plate (5) is 12mm~20mm.

5. The top cover of the low-entry sugarcane cutter in a sugarcane factory according to claim 3, characterized in that... The rib plate (5) is provided with two rows of distance adjustment rods (6), one row of distance adjustment rods (6) corresponds to the sugarcane inlet, and the other row of distance adjustment rods (6) corresponds to the sugarcane outlet.

6. The top cover of the low-entry sugarcane cutter in a sugarcane factory according to claim 1, characterized in that... Along the width direction of the bottom of the top cover body (1) near the sugarcane outlet, there are several strips (7).

7. The top cover of the low-entry sugarcane cutter in a sugarcane factory according to claim 6, characterized in that... The rolling strip (7) mentioned above has 4 to 6 pieces.

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