CN116176718A - High-performance large-size rubber crawler belt - Google Patents
High-performance large-size rubber crawler belt Download PDFInfo
- Publication number
- CN116176718A CN116176718A CN202310486531.5A CN202310486531A CN116176718A CN 116176718 A CN116176718 A CN 116176718A CN 202310486531 A CN202310486531 A CN 202310486531A CN 116176718 A CN116176718 A CN 116176718A
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- Prior art keywords
- strength fiber
- iron
- curtain cloth
- line
- tooth
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 144
- 229910052742 iron Inorganic materials 0.000 claims abstract description 72
- 239000000835 fiber Substances 0.000 claims abstract description 52
- 239000004744 fabric Substances 0.000 claims abstract description 46
- 230000008719 thickening Effects 0.000 claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 239000004677 Nylon Substances 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 229920006231 aramid fiber Polymers 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/18—Tracks
- B62D55/24—Tracks of continuously flexible type, e.g. rubber belts
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Woven Fabrics (AREA)
Abstract
The invention relates to the field of rubber tracks, in particular to a high-performance large-size rubber track. The rubber track comprises a track body, iron teeth and steel wire cords; iron teeth are arranged on the inner side of the crawler body at intervals along the length direction, steel wire cords are arranged below the iron teeth, thickening protrusions for increasing the bonding area between the end parts of the iron teeth and rubber are respectively arranged above the two end parts of the iron teeth, high-strength fiber cord fabrics are arranged between the lower parts of the thickening protrusions and the steel wire cords, the inner sides of the high-strength fiber cord fabrics are inserted between the steel wire cords and the iron teeth, the end parts of the high-strength fiber cord fabrics exceed the inner side ends of the thickening protrusions, and the grade difference between the end parts of the high-strength fiber cord fabrics and the thickening protrusions is 25-40mm; the outer side of the high-strength fiber curtain cloth exceeds the end part of the iron tooth, and the exceeding part is positioned in the crawler body and is tilted towards the direction of the iron tooth, and the level difference between the outer side of the high-strength fiber curtain cloth and the end part of the iron tooth is 30-45mm. The rubber crawler belt improves the bending strength of the crawler belt edges, avoids the falling of rubber at the end parts of the iron teeth, and improves the rigidity of the belt edges.
Description
Technical Field
The invention relates to the field of rubber tracks, in particular to a high-performance large-size rubber track.
Background
Modern agricultural production is not free from the application of various efficient transportation machines, and in order to better adapt to the transportation demands of various special terrains in agricultural environments, the crawler-type transportation vehicle is undoubtedly a more ideal carrier vehicle. As a novel product for replacing the traditional manual carrying and wheel type transport vehicle, the crawler type transport vehicle provides an efficient solution for the mechanized transformation and upgrading of agriculture.
The carrier vehicle replaces the traditional wheel type walking mode by the rubber crawler belt, and has the following advantages: the rubber crawler belt has the advantages of high bearing capacity, high ground grabbing force and low noise, and meanwhile, the crawler belt running device increases the unit ground contact area of the machine and the ground, does not harm farmlands and asphalt pavement, and has good running and passing performances. Along with the wider and wider application range of the rubber track, the quality of the rubber track directly influences the use of a complete machine by a user, and the improvement of the service life of the rubber track has become an important subject of track structural design. The failure mode of the rubber crawler mainly comprises iron tooth falling, iron tooth breakage, belt body breakage and the like, and once the phenomena of breakage, tooth falling and the like occur, the whole crawler is often required to be replaced, and the replacement cost is high.
Disclosure of Invention
In order to prolong the service life of the rubber crawler, solve the problem that the iron teeth and the belt edges of the large-size rubber crawler (the width of the crawler is 700mm, 750mm and above) are stripped and fallen, the invention aims to provide the high-performance large-size rubber crawler, which has the advantages of improving the bending strength of the belt edges of the crawler, avoiding the rubber falling at the end parts of the iron teeth and improving the rigidity of the belt edges.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a high performance large-sized rubber track comprising a track body, iron teeth, and steel cords; iron teeth are arranged on the inner side of the crawler body at intervals along the length direction, steel wire cords are arranged below the iron teeth, thickening protrusions for increasing the bonding area between the ends of the iron teeth and rubber are respectively arranged above the two ends of the iron teeth, high-strength fiber cords are arranged between the lower parts of the thickening protrusions and the steel wire cords, the inner sides of the high-strength fiber cords are inserted between the steel wire cords and the iron teeth, the superposition length of the high-strength fiber cords and the steel wire cords is more than or equal to 40mm, and the superposition length of the high-strength fiber cords and the steel wire cords is more than or equal to 70mm; the end part of the high-strength fiber curtain exceeds the inner side end of the thickening protrusion, and the level difference between the end part and the thickening protrusion is 25-40mm; the outer side of the high-strength fiber curtain cloth exceeds the end part of the iron tooth, the exceeding part is positioned in the crawler body and is tilted towards the direction of the iron tooth, the level difference between the high-strength fiber curtain cloth and the end part of the iron tooth is 30-45mm, and the distance between the end part of the high-strength fiber curtain cloth and the belt edge is less than or equal to 20mm.
Preferably, the thickening protrusion comprises a first convex edge arranged along the edge of the end part of the iron tooth and two second convex edges arranged along the two side edges of the iron tooth, and the first convex edge and the two second convex edges form a U-shaped structure.
Preferably, the height of the thickening protrusion is 9.5-13.8mm, and the width of the first convex edge is 6.5-7.5mm.
Preferably, the first convex edge and the second convex edge are both rounded with a radius R1, and the radius R1 of the rounded corner is 1.5-2.5mm.
Preferably, the first convex edge and the two second convex edges are transited by adopting an arc R3 and an arc R4, and the radiuses of the arc R3 and the arc R4 are 13-15mm.
Preferably, the width of the second convex edge is 7-8mm, and the head of the second convex edge is made into a quarter outer circular arc R5 which faces the center line of the long shaft of the iron tooth, and the radius of the circular arc R5 is 20-22mm.
Preferably, the upper curve of the second convex edge is formed by four mutually connected lines, the first line L1 is formed by a horizontal straight line with the width of 6.5-7.5mm, and the height H1 from the bottom surface is 12.8-13.8mm; the second line L2 is a downward inclined line, the width is 7.5-8.5mm, and the height H2 from the lowest point to the bottom surface is 12-13mm; the third line L3 and the fourth line L4 are respectively an upward oblique line and a downward oblique line, the widths are 14.5-15.5mm and 9.5-10.5mm, the height H3 of the highest point from the bottom surface is 12.5-13.5mm, and the third line and the fourth line are connected through an outer arc R2 with the radius of 7.5-8.5 mm.
Preferably, the high-strength fiber curtain cloth is made of one or more of nylon, high-strength polyethylene, glass fiber and aramid fiber.
Preferably, the high-strength fiber curtain cloth is formed by overlapping three high-strength fiber curtain cloth with the same size and shape; the thickness of each high-strength fiber curtain cloth is 0.4-0.6mm.
Preferably, the height of the excess part of the high-strength fiber curtain cloth, which is tilted towards the direction of the iron teeth, is 12-18mm.
By adopting the technical scheme, the invention can increase the bonding area of the end part of the iron tooth and the rubber and improve the bending strength of the belt edge of the crawler belt; and can be effectual connect indisputable tooth and steel cord through high strength fiber cord fabric, promote the whole rigidity of rubber track area limit, high strength fiber plays the parcel effect to indisputable tooth tip simultaneously, can protect the rubber of indisputable tooth tip bonding, avoid indisputable tooth tip department rubber to drop, promote the area limit rigidity.
Drawings
Fig. 1 is a schematic view of a crawler belt structure.
Fig. 2 is a front view of the iron tooth structure.
Fig. 3 is a partial enlarged view of a.
Fig. 4 is a top view of the iron tooth structure.
Fig. 5 is a simulated computing cloud of finite elements of the original scheme.
Fig. 6 is a finite element simulation calculation cloud chart of the scheme of the invention.
Detailed Description
The following describes the embodiments of the present invention in detail with reference to the drawings.
A high performance large-sized (track width is 700 mm) rubber track as shown in fig. 1, which includes a track body 1, iron teeth 2, and a steel cord 3; the inner side of the crawler body is provided with iron teeth 2 along the length direction at intervals, steel cord 3 is arranged below the iron teeth 2, thickening protrusions 5 for increasing the bonding area between the end parts of the iron teeth 2 and rubber are respectively arranged above two end parts of the iron teeth 2, high-strength fiber cord fabrics 4 are arranged between the lower parts of the thickening protrusions 5 and the steel cord 3, nylon 6 is selected as a material of the high-strength fiber cord fabrics 4, the high-strength fiber cord fabrics 4 are formed by overlapping three high-strength fiber cord fabrics 4 with the same size and shape, the effect is like that of a thickened high-strength fiber cord fabric, and the thickness of each high-strength fiber cord fabric 4 is 0.5mm. The inner side of the high-strength fiber cord fabric 4 is inserted between the steel cord 3 and the iron teeth 2, the end part of the high-strength fiber cord fabric exceeds the inner side end of the thickening protrusion 5, and the level difference between the high-strength fiber cord fabric and the thickening protrusion 5 is 30mm; the outer side of the high-strength fiber curtain cloth 4 exceeds the end part of the iron tooth 2, the exceeding part is positioned in the crawler body 1 and is tilted towards the direction of the iron tooth 2, the level difference between the high-strength fiber curtain cloth 4 and the end part of the iron tooth 2 is 40mm, and the tilting height of the exceeding part of the high-strength fiber curtain cloth 4 towards the direction of the iron tooth 2 is 16mm.
In the invention, 3 pieces of high-strength fiber curtain cloth are added between the steel wires and the iron teeth, the thickness of the curtain cloth is 0.5mm, and the interval between every two curtain cloth is 0.5mm. The overlapping length of the fiber curtain cloth and the steel wires is more than or equal to 40mm, the overlapping length of the fiber curtain cloth and the iron teeth is more than or equal to 70mm, and the distance between the end part of the fiber curtain cloth and the belt edge is less than or equal to 20mm. Because main framework material in the rubber track is iron tooth and wire cord 3, and the distance of jumbo size rubber track iron tooth tip distance area limit is great, and high strength fiber curtain cloth can effectually connect iron tooth and wire cord 3, promotes the whole rigidity on rubber track area limit, and high strength fiber plays the parcel effect to iron tooth tip simultaneously, can protect the rubber of iron tooth tip bonding, avoids iron tooth tip department rubber to drop, promotes the area limit rigidity.
Further, as shown in fig. 2, 3 and 4, the thickening protrusion 5 includes a first flange 7 disposed along the edge of the end portion of the iron tooth 2 and two second flanges 8 disposed along two sides of the iron tooth 2, and the first flange 7 and the two second flanges 8 form a "U" structure. Because the most frequent part of the rubber track body and the iron teeth are the meshing position of the iron tooth end part and the rubber track, the traditional iron tooth end part is designed to be a plane with the thickness of 5-7mm, the bonding area with rubber is small, and the stress is concentrated at the iron tooth end part after the rubber track belt edge is stressed; according to the invention, the thickening protrusions 5 are added above the original iron tooth ends, the design of the U-shaped groove can increase the bonding area of the iron tooth ends and rubber, and the bending strength of the belt edges of the crawler belt is improved. The height of the thickening protrusion 5 is 13.3mm, and the width of the first convex edge 7 is 7.0mm. The first convex edge 7 and the second convex edge 8 are both rounded with a radius R1, and the radius of the radius R1 is 2.0mm. The first convex edge 7 and the two second convex edges 8 are in transition by adopting an arc R3 and an arc R4, and the radiuses of the arc R3 and the arc R4 are 14mm. The width of the second convex edge 8 is 7.5mm, and the head of the second convex edge 8 is made into a quarter outer circular arc R5 which faces the long axis center line of the iron tooth 2, and the radius of the circular arc R5 is 20.8mm. The upper curve of the second convex edge 8 is formed by four mutually connected lines, the first line L1 is formed by a horizontal straight line with the width of 7.0mm, and the height H1 from the bottom surface is 12.5mm; the second line L2 is a downward inclined line, the width is 8.0mm, and the height H2 from the lowest point to the bottom surface is 12.5mm; the third line L3 and the fourth line L4 are respectively an upward oblique line and a downward oblique line, the widths are 15.0mm and 10.0mm, the height H3 of the highest point from the bottom surface is 13.0mm, and the third line and the fourth line are connected through an outer arc R2 with the radius of 8.0 mm.
The scheme and the original scheme of the embodiment are subjected to band edge rigidity calculation and finite element simulation; the original proposal does not have thickening protrusions and high-strength fiber curtain cloth.
According to the table and the finite element simulation of fig. 4 and 5, it can be seen that the rigidity of the belt edge of the original model is 71.72N/mm, the rigidity of the belt edge of the invention is 94.07N/mm, the rigidity of the belt edge of the crawler belt is greatly improved, the problem that the track iron teeth 4 and the belt edge are peeled off can be effectively relieved, and the service life of the large-size rubber crawler belt is prolonged.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art. The generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A high-performance large-size rubber track, which comprises a track body (1), iron teeth (2) and steel wires (3); the inboard of track body is provided with iron tooth (2) along length direction interval, and iron tooth (2) below sets up steel cord (3), its characterized in that: a thickening protrusion (5) for increasing the bonding area between the end part of the iron tooth (2) and rubber is arranged above the two end parts of the iron tooth (2), a high-strength fiber curtain cloth (4) is arranged between the lower part of the thickening protrusion (5) and the steel cord (3), the inner side of the high-strength fiber curtain cloth (4) is inserted between the steel cord (3) and the iron tooth (2), the superposition length of the high-strength fiber curtain cloth (4) and the steel cord (3) is more than or equal to 40mm, and the superposition length of the high-strength fiber curtain cloth (4) and the iron tooth (2) is more than or equal to 70mm; the end part of the high-strength fiber curtain cloth (4) exceeds the inner side end of the thickening protrusion (5), and the level difference between the end part and the thickening protrusion (5) is 25-40mm; the outer side of the high-strength fiber curtain cloth (4) exceeds the end part of the iron tooth (2), the excess part is positioned in the crawler body (1) and is tilted towards the direction of the iron tooth (2), the level difference between the excess part and the end part of the iron tooth (2) is 30-45mm, and the distance between the end part of the high-strength fiber curtain cloth (4) and the belt edge is less than or equal to 20mm.
2. A high performance large-size rubber track according to claim 1, characterized in that the thickening protrusion (5) comprises a first flange (7) arranged along the end edge of the iron tooth (2) and two second flanges (8) arranged along both sides of the iron tooth (2), the first flange (7) and the two second flanges (8) forming a "U" shaped structure.
3. A high performance large size rubber track according to claim 2, characterized in that the height of the thickening protrusion (5) is 9.5-13.8mm and the width of the first flange (7) is 6.5-7.5mm.
4. A high performance large size rubber track according to claim 2, characterized in that the first flange (7) and the second flange (8) are rounded R1, the radius of the rounded R1 being 1.5-2.5mm.
5. The high-performance large-size rubber crawler according to claim 2, wherein the first convex edge (7) and the two second convex edges (8) are transited by adopting an arc R3 and an arc R4, and the radius of the arc R3 and the arc R4 is 13-15mm.
6. A high performance large size rubber track according to claim 2, wherein: the width of the second convex edge (8) is 7-8mm, and the head of the second convex edge (8) is made into a quarter outer circular arc R5 which faces the long axis center line of the iron tooth (2), and the radius of the circular arc R5 is 20-22mm.
7. A high performance large size rubber track according to claim 2 or 6, wherein: the upper curve of the second convex edge (8) is formed by four mutually connected lines, the first line L1 is formed by a horizontal straight line with the width of 6.5-7.5mm, and the height H1 from the bottom surface is 12.8-13.8mm; the second line L2 is a downward inclined line, the width is 7.5-8.5mm, and the height H2 from the lowest point to the bottom surface is 12-13mm; the third line L3 and the fourth line L4 are respectively an upward oblique line and a downward oblique line, the widths are 14.5-15.5mm and 9.5-10.5mm, the height H3 of the highest point from the bottom surface is 12.5-13.5mm, and the third line and the fourth line are connected through an outer arc R2 with the radius of 7.5-8.5 mm.
8. The high-performance large-size rubber crawler according to claim 1, wherein the high-strength fiber curtain cloth (4) is made of one or more of nylon, high-strength polyethylene, glass fiber and aramid fiber.
9. The high-performance large-size rubber crawler according to claim 1, wherein the high-strength fiber curtain cloth (4) is formed by overlapping three high-strength fiber curtain cloth (4) with the same size and shape; the thickness of each high-strength fiber curtain cloth (4) is 0.4-0.6mm.
10. A high performance large size rubber track according to claim 1, characterized in that the height of the excess of the high strength fibre curtain (4) is 12-18mm in the direction of the iron teeth (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310486531.5A CN116176718B (en) | 2023-05-04 | 2023-05-04 | High-performance large-size rubber crawler belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310486531.5A CN116176718B (en) | 2023-05-04 | 2023-05-04 | High-performance large-size rubber crawler belt |
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| Publication Number | Publication Date |
|---|---|
| CN116176718A true CN116176718A (en) | 2023-05-30 |
| CN116176718B CN116176718B (en) | 2024-03-26 |
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| CN202310486531.5A Active CN116176718B (en) | 2023-05-04 | 2023-05-04 | High-performance large-size rubber crawler belt |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0562396U (en) * | 1992-05-18 | 1993-08-20 | 福山ゴム工業株式会社 | Rubber crawler |
| JPH06115466A (en) * | 1992-10-02 | 1994-04-26 | Ohtsu Tire & Rubber Co Ltd :The | Elastic crawler |
| JPH0661672U (en) * | 1993-02-05 | 1994-08-30 | 油谷重工株式会社 | Rubber crawler structure |
| JP2004345578A (en) * | 2003-05-26 | 2004-12-09 | Bridgestone Corp | Structure of core for rubber crawler |
| JP2005271874A (en) * | 2004-03-26 | 2005-10-06 | Sumitomo Rubber Ind Ltd | Elastic crawler |
| KR200417307Y1 (en) * | 2006-02-28 | 2006-05-26 | 대륙화학공업 주식회사 | Rolling region blowout protected type Steel core of crawler |
| JP2009029205A (en) * | 2007-07-25 | 2009-02-12 | Sumitomo Rubber Ind Ltd | Elastic crawler, and manufacturing method for elastic crawler |
| RU2403165C1 (en) * | 2009-05-25 | 2010-11-10 | Федеральное государственное образовательное учреждение высшего профессионального образования Дальневосточный государственный аграрный университет | Hingeless rubber-reinforced track for harvester |
| CN105899426A (en) * | 2014-01-10 | 2016-08-24 | 住友橡胶工业株式会社 | Elastic track |
| US20170151987A1 (en) * | 2015-11-27 | 2017-06-01 | Bridgestone Corporation | Elastic crawler |
| CN208760755U (en) * | 2018-09-05 | 2019-04-19 | 上海华向橡胶履带有限公司 | Compound cord structure rubber crawler belt |
| CN218198573U (en) * | 2022-08-29 | 2023-01-03 | 中策橡胶集团股份有限公司 | High-wear-resistance agricultural crawler and walking device of agricultural crawler harvester |
| CN220332817U (en) * | 2023-05-04 | 2024-01-12 | 中策橡胶集团股份有限公司 | Rubber crawler belt for improving rigidity of belt edge |
-
2023
- 2023-05-04 CN CN202310486531.5A patent/CN116176718B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0562396U (en) * | 1992-05-18 | 1993-08-20 | 福山ゴム工業株式会社 | Rubber crawler |
| JPH06115466A (en) * | 1992-10-02 | 1994-04-26 | Ohtsu Tire & Rubber Co Ltd :The | Elastic crawler |
| JPH0661672U (en) * | 1993-02-05 | 1994-08-30 | 油谷重工株式会社 | Rubber crawler structure |
| JP2004345578A (en) * | 2003-05-26 | 2004-12-09 | Bridgestone Corp | Structure of core for rubber crawler |
| JP2005271874A (en) * | 2004-03-26 | 2005-10-06 | Sumitomo Rubber Ind Ltd | Elastic crawler |
| KR200417307Y1 (en) * | 2006-02-28 | 2006-05-26 | 대륙화학공업 주식회사 | Rolling region blowout protected type Steel core of crawler |
| JP2009029205A (en) * | 2007-07-25 | 2009-02-12 | Sumitomo Rubber Ind Ltd | Elastic crawler, and manufacturing method for elastic crawler |
| RU2403165C1 (en) * | 2009-05-25 | 2010-11-10 | Федеральное государственное образовательное учреждение высшего профессионального образования Дальневосточный государственный аграрный университет | Hingeless rubber-reinforced track for harvester |
| CN105899426A (en) * | 2014-01-10 | 2016-08-24 | 住友橡胶工业株式会社 | Elastic track |
| US20170151987A1 (en) * | 2015-11-27 | 2017-06-01 | Bridgestone Corporation | Elastic crawler |
| CN208760755U (en) * | 2018-09-05 | 2019-04-19 | 上海华向橡胶履带有限公司 | Compound cord structure rubber crawler belt |
| CN218198573U (en) * | 2022-08-29 | 2023-01-03 | 中策橡胶集团股份有限公司 | High-wear-resistance agricultural crawler and walking device of agricultural crawler harvester |
| CN220332817U (en) * | 2023-05-04 | 2024-01-12 | 中策橡胶集团股份有限公司 | Rubber crawler belt for improving rigidity of belt edge |
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| Publication number | Publication date |
|---|---|
| CN116176718B (en) | 2024-03-26 |
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