CN211170714U - Sugarcane tears machine knife utensil that separates - Google Patents
Sugarcane tears machine knife utensil that separates Download PDFInfo
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- CN211170714U CN211170714U CN201921160338.8U CN201921160338U CN211170714U CN 211170714 U CN211170714 U CN 211170714U CN 201921160338 U CN201921160338 U CN 201921160338U CN 211170714 U CN211170714 U CN 211170714U
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Abstract
The utility model relates to a system sugar industry technical field provides a sugarcane tears machine knife utensil of splitting, and it is the same and tool bit, parent and the forked tail portion of tip parallel and level butt joint including disjunctor thickness, and the side of parent is the rhomboid that the opposite side is roughly equal, and the afterbody of tool bit gradually narrows, the corner afterbody circular arc of keeping away from the parent passes through to become the circular arc terminal surface, in particular: vertically have the fluting in the middle of the afterbody of tool bit, the fluting is embedded to have wear-resisting alloy piece, and the distance of circular arc terminal surface mid point to fluting end is greater than the thickness of tool bit, the thickness and the fluting looks adaptation of alloy piece, the bottom surface of alloy piece just connect face butt respectively in the grooved groove side to grooved tank bottom surface, side, and other faces of alloy piece are for exceeding the broken working face that the tool bit corresponds position surface 0 ~ 10mm, and the optimization scheme is that the tool bit firmly adheres to the wear-resisting alloy-layer that thickness is less than 2mm in the supplementary working face in the fluting outside, the utility model has the characteristics of wearability and shock resistance are good, can prolong the life of tearing machine knife utensil.
Description
Technical Field
The utility model relates to the technical field of sugar industry, in particular to a sugarcane tearing machine cutter used in a cane sugar factory.
Background
The crushing of the sugarcane is an important process of a pressing workshop of a cane sugar factory, the sugarcane ripping machine is important equipment for crushing and preprocessing the sugarcane, and the cutter arranged on the cutter roller is a key working part of the ripping machine. The cutters on the cutter roller are arranged in rows according to single or double helix, and the cutter roller rotates at a high speed to drive the cutters to cut off and crush the sugarcane. In recent years, with the popularization and application of mechanized sugarcane harvesting and the increase of occasions of using mechanized grab machines to load sugarcane, the proportion of sand carried in the sugarcane is increased obviously, thereby increasing the abrasion of the cutter of the sugarcane ripper. The traditional tool for manually surfacing the wear-resistant alloy layer cannot well meet the requirement on production life; although the wear resistance of the existing hard alloy welding tool is improved to a certain extent, the existing hard alloy welding tool is easily cracked and brittle due to the restriction of factors such as the structure of the tool, the processing quality and the like, the overall durability of the existing hard alloy welding tool is not good, and the existing hard alloy welding tool cannot meet the production requirement. Particularly, when a few cutter heads of the cutter roller of the shredder are brittle-broken, the wear of the cutter blank is aggravated immediately, the dynamic balance unbalance of the cutter roller and the phenomenon of sugarcane blockage are caused quickly, the production indexes such as the safety production rate and the extraction rate of sugarcane pressing are seriously influenced, and the frequent shutdown and cutter replacement bring great economic loss to manufacturers. Therefore, the lack of a durable, wear and impact resistant shredder cutter has become one of the technological bottlenecks that restrict the sugar industry.
The utility model discloses a 99258881.2, this patent have provided a cane sugar factory inlays type wear-resisting sugarcane cutter of cutting machine that excels in, and its blade has inlays the groove, will have the carbide strip welding of inlaying the tooth to be regarded as sugarcane cutter blade point on the edge of a knife, and this sugarcane cutter intensity is big, and the wearability is good, and long service life reaches 1 ~ 2 seasons of squeezing, and sugarcane crushing effect is better, squeezes volume and extraction rate and improves.
Utility model patent Z L201820431413.9, this patent provide a but quick replacement tool bit tear open machine blade, and the sugarcane sword divide into activity tool bit and fixed blade holder two parts, and both pass through the screw-up, can wear and tear the new tool bit of ability quick replacement after can't using in the tool bit part like this, improve maintenance efficiency.
Utility model patent Z L201720131748.4, this patent provide a sugar refinery sugarcane tears machine knife utensil, and its main characterized in that adopts plasma welding to melt and covers technology, melts and covers multilayer wear-resisting alloy at the tool bit, reaches reinforcing cutter intensity and wear-resisting life's purpose.
The wear-resistant alloy cutter for the shredder provided by the patents only adopts pure manual sugarcane harvesting and hoisting under the condition of not using mechanized harvesting and mechanical grabbing machine loading, so that impurities such as sand and stone carried in the sugarcane are less, the abrasion to the cutter is small after the sugarcane enters a sugarcane crushing treatment section, and the cutter manufactured in the patents can basically meet the use requirement of a sugar refinery in one season (120 days). However, with the popularization and use of the mechanical harvesting and the loading of the mechanical grabbing machine in the sugar producing area of the sugarcane, the amount of coarse gravel carried in the sugarcane is obviously increased, when the sugarcane enters the tearing and breaking machine to be broken, the abrasion of the cutter is aggravated, and the cutter head is often impacted by the gravel, so that the wear-resistant alloy layer of the cutter head is often cracked and peeled off. Particularly, the cutter using hard alloy has high hardness and large brittleness, and when the cutter head is impacted by sundries such as sand and stone, the cutter point is easy to be brittle and broken, so that the cutter blank loses the protection of the cutter point, and is worn and failed quickly. Therefore, the problems of easy brittle failure, fast wear, short service life and the like of the existing shredder cutters in the market cannot be well solved, and therefore, the development of a durable shredder cutter with high wear resistance and good impact resistance becomes a technology to be urgently broken through in the sugar industry.
SUMMERY OF THE UTILITY MODEL
The utility model provides a sugarcane tears machine knife utensil of separating, its wearability and shock resistance are good, can prolong the life of tearing machine knife utensil of separating.
The utility model adopts the technical proposal that.
The utility model provides a sugarcane tears machine knife utensil of splitting, is including disjunctor tool bit, parent and forked tail portion, and tool bit, parent and forked tail portion are the same and tip parallel and level butt joint's metal plate-shaped structure of thickness, and the side of parent is the rhomboid that inclines roughly equals of opposite side, and the afterbody circular arc transition that the afterbody of tool bit gradually narrows down, keeps away from the parent becomes the circular arc terminal surface, and the afterbody middle vertical fluting that has of tool bit, fluting embedded wear-resisting alloy piece.
The width of the groove is 1/3-5/6 of the thickness of the cutter head, and the distance from the middle point of the arc end face to the groove end is larger than the thickness of the cutter head.
The thickness of the alloy block is matched with the groove, the alloy block is provided with a bottom surface and a side surface connecting surface, the bottom surface of the alloy block is just opposite to the groove bottom surface and the side surface connecting surface of the groove, the bottom surface and the side surface connecting surface of the alloy block are respectively abutted against the side surface of the groove, other surfaces of the alloy block are crushing working surfaces, and the crushing working surfaces are 0-10 mm higher than the end surface of the corresponding position of the tool bit.
The alloy block is a hard alloy block containing elements such as carbon (C), cobalt (Co), tungsten (W) and the like, the hardness range of the alloy block is 55 HRC-75 HRC, and the alloy block is fixedly connected with the side connecting surface of the cutter head through welding, interference fit or strong adhesive bonding.
The optimization scheme is as follows: the side surface of the cutter head is approximate to a fan shape or a triangle, one straight edge of the cutter head is butted with the parent body, and the corner part far away from the butted edge is the tail part.
Further optimizing the scheme: and a wear-resistant alloy layer with the thickness less than 2mm is firmly attached to the auxiliary working surface of the tool bit outside the groove.
Compared with the prior art, the utility model has the following substantive characteristics and progress.
(1) The utility model discloses vertical fluting and embedding platykurtic abrasion-resistant alloy piece in the middle of the tool bit of cutter, the alloy piece is connected the face through the both sides face and is realized the fastening connection with the cutter tool bit simultaneously, and this makes alloy piece both sides face receive the special protection of tool bit material, and its force stability is better, and bonding strength is higher, and difficult emergence collapses, inefficacy such as brittle failure, is favorable to its durable degree to improve.
(2) The utility model discloses an alloy piece is flat shape, and two side connection faces of being connected with the tool bit are all on a parallel with main work load, so when carrying out crushing work, the fastening faying face of alloy piece and parent bears shear stress. Because the area of the joint surface is large and two symmetrical fastening joint surfaces are provided, the fastening joint surface of the alloy block has high shear strength and strong work overload bearing capacity. In addition, because the area of the fastening joint surface of the alloy block is large, the alloy block has more spare shearing strength, some local and fine joint defects in the process of fastening connection cannot cause brittle fracture of the alloy block, the capability of bearing working load of the whole alloy block cannot be influenced, and the structural advantage is favorable for ensuring the whole quality of the cutter and improving the actual durability of the cutter.
(3) The utility model discloses connect the face as the fastening faying face with the cutter tool bit with two sides of wear-resisting alloy piece, let its thickness face of smaller size act as broken working face, this makes the alloy piece have great, even the biggest cross-sectional area in main work load direction, consequently, the alloy piece has very big bending resistance cross-section modulus in work, anti shear section modulus and anti extrusion cross-section modulus, the alloy piece is with the position that self intensity is the highest to the work load, so effectively improved the ability that the cutter shocks resistance, be favorable to improving the durability of cutter.
(4) The utility model discloses well wear-resisting alloy piece's broken working face exceeds the cutter head, can effectively reduce the load that acts on the cutter head face, has reduced the wearing and tearing of cutter head material.
(5) The scheme that the auxiliary working surface of the cutter head part is firmly attached with the wear-resistant material layer with a certain thickness further improves the wear resistance of the parent material of the cutter head area of the cutter.
(6) The section form of the wear-resistant alloy block influences the bending section modulus thereof, which can be deduced from the definition of the bending section modulus: rectangular section mouldThe quantity is proportional to the square of the section height and to the first power of the section width, i.e. WZ＝b1·H12/6, wherein b1 represents width, H1 represents height, WZThe modulus of the rectangular section. Therefore, a reasonable cross-sectional shape should be W with equal cross-sectional areasZMaximum; the utility model discloses take middle fluting to put into alloy piece mode, the size b1 of alloy piece is no less than H1, generally gets H1 during the design and is no less than 1.5b1, and bending resistance section modulus increases more than 3 times when putting vertically than keeping flat, and corresponding impact toughness value also increases.
Therefore, the utility model discloses the unique mounting means of well alloy piece has improved the shock resistance of cutter, has prolonged the wear-resisting life who tears quick-witted alloy cutter greatly.
Drawings
Fig. 1 is a front view of the sugarcane stripper cutter of the present invention, and fig. 1A is a left view of fig. 1.
Fig. 2 is a front view of the cutter head, the parent body and the dovetail part of the sugarcane stripper cutter of the present invention, and fig. 2A is a left view of fig. 2.
Fig. 3 is a front view of the alloy block of the sugarcane stripper cutter of the present invention, and fig. 3A is a left view of fig. 3.
Fig. 4 is a front view of another sugarcane stripper cutter of the present invention, and fig. 4A is a left side view of fig. 4.
Fig. 5 is a schematic view of the structure of the sugarcane stripper tool of fig. 1 mounted on a sugarcane stripper.
Detailed Description
The present invention will be further described with reference to the following specific examples.
Referring to fig. 1 and fig. 1A, fig. 2 and fig. 2A, fig. 3 and fig. 3A and fig. 5, the utility model provides a sugarcane tears machine knife utensil open, including disjunctor tool bit 3, parent 4 and dovetail 5, tool bit 3, parent 4 and dovetail 5 are the same and tip parallel and level butt joint's metal plate-shaped structure of thickness, the side of parent 4 is the rhomboid that the opposite side is roughly the same, the side of tool bit 3 is similar fan-shaped, one of them straight flange docks with parent 4, the bight that parent 4 was kept away from to tool bit 3 is afterbody and circular arc transition become circular arc terminal surface C, vertically have fluting 1 in the middle of the afterbody of tool bit 3, fluting 1 is embedded to have wear-resistant alloy piece 2.
The width B1 of the slot 1 in this example is 1/2 of the thickness B of the cutting head 3, the thickness B of the cutting head in this example is 25mm, the width B1 of the slot 1 is 12.5mm, the slot 1 is embedded in the wear-resistant alloy block 2, and the thickness B2 of the wear-resistant alloy block 2 is 12 mm.
The distances (L1, L2) from the middle point of the arc end surface C to the end of the notch 1 are larger than the thickness B of the cutter head 3, wherein L1 is 40mm, and L2 is 40 mm.
The thickness b2 of the alloy block 2 is matched with the open slot 1, the alloy block 2 is provided with a bottom surface A33 and side surface connecting surfaces (A11 and A22), the bottom surface A33 of the alloy block 2 is right opposite to the slot bottom surface A3 and the side surface connecting surfaces (A11 and A22) of the open slot 1 and respectively abut against the slot side surfaces (A1 and A2) of the open slot 1, the other surfaces of the alloy block 2 are crushing working surfaces (M, N, J), and the crushing working surfaces (M, N, J) are 2mm higher than the end surface of the corresponding position of the cutter head 3.
The tool bit 3 is the main abrasion part of the cutter, when in implementation, the middle longitudinal groove 1 of the tool bit 3 is machined through a milling machine, the groove opening penetrates through the knife edge surface and the knife back surface, the surface of the groove opening is ensured to be smooth as much as possible during machining, and the side surface connecting surfaces (A11 and A22) of the alloy block 2 are fixedly connected with the groove side surfaces (A1 and A2) of the groove 1 in a brazing welding mode.
Preferably, the bottom surface a33 of the alloy piece 2 of this example and the groove bottom surface A3 of the open groove 1 are also welded by brazing.
Referring to fig. 4 and 4A in combination, as a preferable scheme, the surface of the tool bit 3 of the present embodiment is reinforced by overlaying a thin layer of wear-resistant alloy layer on the auxiliary working surface except the grooving 1, the thickness of the overlaying layer of wear-resistant alloy layer 6 is 1.8mm, and the enhanced protection of the auxiliary working surface is beneficial to improving the wear life of the parent material in the tool bit region.
Fig. 5 is a schematic structural view of the sugarcane stripper tool of the present invention installed on the sugarcane stripper tool for use.
Claims (4)
1. The utility model provides a sugarcane tears machine knife utensil of splitting, is including disjunctor tool bit (3), parent (4) and forked tail portion (5), and tool bit (3), parent (4) and forked tail portion (5) are the same and tip parallel and level butt joint's metal plate shape structure of thickness, and the side of parent (4) is the oblique quadrangle that the opposite side is roughly equal, and the afterbody circular arc transition that the afterbody of tool bit (3) narrows gradually, keeps away from parent (4) becomes circular arc terminal surface (C), its characterized in that: the middle of the tail part of the tool bit (3) is longitudinally provided with a groove (1), and a wear-resistant alloy block (2) is embedded in the groove (1);
the width B1 of the groove (1) is 1/3-5/6 of the thickness B of the tool bit (3), namely B1 is 1/3B-5/6B, and the distance (L1 or L2) from the middle point of the arc end face (C) to the end of the groove (1) is larger than the thickness (B) of the tool bit (3);
the thickness (b2) of the alloy block (2) is matched with the slot (1), the alloy block (2) is provided with a bottom surface (A33) and side surface connecting surfaces (A11 and A22), the bottom surface (A33) of the alloy block (2) is opposite to the slot bottom surface (A3) and the side surface connecting surfaces (A11 and A22) of the slot (1) and are respectively abutted against the slot side surfaces (A1 and A2) of the slot (1), the other surfaces of the alloy block (2) are crushing working surfaces (M, N, J), the crushing working surfaces (M, N, J) are 0-10 mm higher than the end surfaces of the corresponding positions of the cutter head (3), and the side surface connecting surfaces (A11 and A22) of the alloy block (2) and the cutter head (3) are fixedly connected through welding, interference fit or strong glue.
2. The sugarcane stripper knife of claim 1, wherein: the side surface of the cutter head (3) is approximate to a fan shape or a triangle, one straight side of the cutter head is butted with the parent body (4), and the corner part far away from the butted side is the tail part.
3. The sugarcane stripper knife of claim 1, wherein: the bottom surface (A33) of the alloy block (2) is connected with the groove bottom surface (A3) of the groove (1) through welding or strong glue adhesion.
4. A cane shredder knife according to claim 1, 2 or 3 wherein: the crushing working surface (M, N, J) of the alloy block (2) is 2-10 mm higher than the end surface of the corresponding position of the cutter head (3), and the auxiliary working surface of the cutter head (3) outside the groove (1) is firmly attached with a wear-resistant alloy layer (6) with the thickness less than 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921160338.8U CN211170714U (en) | 2019-07-23 | 2019-07-23 | Sugarcane tears machine knife utensil that separates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921160338.8U CN211170714U (en) | 2019-07-23 | 2019-07-23 | Sugarcane tears machine knife utensil that separates |
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| Publication Number | Publication Date |
|---|---|
| CN211170714U true CN211170714U (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921160338.8U Active CN211170714U (en) | 2019-07-23 | 2019-07-23 | Sugarcane tears machine knife utensil that separates |
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| Country | Link |
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| CN (1) | CN211170714U (en) |
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- 2019-07-23 CN CN201921160338.8U patent/CN211170714U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.10, shiliugang Road, Haizhu District, Guangzhou City, Guangdong Province 510000 Patentee after: Institute of biological and medical engineering, Guangdong Academy of Sciences Address before: No.10, shiliugang Road, Haizhu District, Guangzhou City, Guangdong Province 510000 Patentee before: Institute of bioengineering, Guangdong Academy of Sciences |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: No.10, shiliugang Road, Haizhu District, Guangzhou City, Guangdong Province 510000 Patentee after: Institute of bioengineering, Guangdong Academy of Sciences Address before: 510316, 10, pomegranate Road, Guangzhou, Guangdong, Haizhuqu District Patentee before: GUANGDONG PROVINCIAL BIOENGINEERING INSTITUTE (GUANGZHOU SUGARCANE INDUSTRY RESEARCH INSTITUTE) |
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| CP03 | Change of name, title or address |