A self-cleaning rubber track
By designing a raised structure on the rubber track, it prevents the entry of mud and sand and scrape and discharge, the problems of track wear and power consumption are solved, and the self-cleaning function is realized and the service life is extended.
Patent Information
- Application Number
- CN202011104132.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-10-15
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2040-10-15
AI Technical Summary
Rubber track walking systems are prone to accumulation of silt and other substances in harsh environments, resulting in increased wear, increased power consumption and reduced service life.
A self-cleaning rubber track is designed. There are raised structures distributed on the inner and outer surfaces of the track. The raised structure at the edge prevents the entry of silt and sand. The raised structure is used for driving and guiding, and scraping and ejecting deposits through ridge-like areas.
It effectively reduces the accumulation of silt and sand in the track, reduces wear and power consumption, extends service life, and realizes self-cleaning function in harsh terrain.
Smart Images
Figure CN112061259B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the field of crawler-type walking systems, and in particular relates to a self-cleaning rubber crawler. Background Art
[0002] Rubber track systems are often used in harsh environments such as mud. It is inevitable that mud and sand will be drawn into the system and accumulate. These accumulated mud or sand will affect the mutual movement of the components in the rubber track system, and reduce the service life of the system by increasing wear. For example, small hard debris such as sand and stone will cause wear of the meshing part of the rubber track drive teeth and the drive wheel, and larger debris may even induce tooth skipping; debris accumulates on the inner surface of the track body, and is more difficult to detach after being repeatedly crushed by the road wheels, which will increase the tension of the track; debris adheres to the surface of the road wheels or other components, and rubs against the rubber track-related structures, which will accelerate the wear of these components and tracks. In addition, the accumulation of mud or sand increases the weight of the rubber track system and increases the power consumption of the vehicle, which is in urgent need of improvement. Summary of the invention
[0003] In view of this, the invention aims to overcome the defects in the prior art and proposes a self-cleaning rubber crawler with a protrusion structure distributed on the inner edge. When the rubber crawler walking system is running, the edge protrusion structure can prevent mud and sand in the terrain from entering the walking system, and at the same time, the deposits on the components such as the road wheels can be scraped off and thrown out. By continuously running, the mud and debris entering the rubber crawler walking system can be continuously reduced, realizing the self-cleaning function.
[0004] To achieve the above object, the technical solution created by the present invention is implemented as follows:
[0005] A self-cleaning rubber crawler, comprising a crawler body, etc., wherein the outer surface of the crawler body has pattern protrusions, etc.:
[0006] A single row or several rows of protrusion structures are provided on the inner surface of the crawler body near the edge of the crawler body, the bottom of the edge protrusion structure is fixedly connected to the crawler body, and the ends extending in all directions along the inner surface of the crawler body form side surfaces, and the side surfaces are all inclined inwardly, so that the shape of the edge protrusion structure gradually shrinks from the bottom to the top, that is, except for the top and the bottom, the rest of the surface is inclined inwardly;
[0007] Furthermore, the inclination angle of the side surface of the edge protrusion structure relative to the normal vector of the inner surface of the track body is preferably 0° to 20°, and the normal vector of the inner surface of the track body points from the outer surface of the track body to the inner surface.
[0008] Furthermore, the side surface of the edge protrusion structure near the middle of the track body has a plane structure, which is roughly parallel to the length direction of the track and is used to guide the track, and is called a guide surface.
[0009] Furthermore, the edge protrusion structure has a planar structure on the surfaces of both ends or one end in the length direction of the track, which is called a mud-shedding surface.
[0010] Furthermore, the angle between the desludging surface and the guide surface is less than or equal to 90°, and the measurement plane of the angle is perpendicular to the straight line where the desludging surface and the guide surface intersect.
[0011] Furthermore, the inner surface of the rubber track has a single row or several rows of raised structures away from the edge of the track body. The bottom of the inner raised structure is fixedly connected to the track body, and the length from the bottom to the top gradually decreases along the width direction of the track, and the length from the bottom to the top gradually decreases along the length direction of the track, so that the shape of the inner raised structure gradually shrinks from the bottom to the top.
[0012] Furthermore, the end surface of the inner protrusion structure extending along the length direction of the track is a driving surface, which is a continuous and smooth curved surface. The driving surface is divided by a normal plane in the width direction of the track. The cross-section of the driving surface presents a smooth and continuous curve, and its bottom smoothly transitions to the surface of the track body through an arc. The driving surface is used to engage with the driving wheel of the rubber track walking system to transmit power.
[0013] Furthermore, the end of the inner protrusion structure extending in the width direction of the crawler has a plane structure, which is roughly parallel to the length direction of the crawler and is used to guide the crawler, and is called a guide surface. The guide surface is divided by a normal plane in the length direction of the crawler, and the cross-sectional profile of the guide surface is mainly composed of straight lines, and the bottom of the straight line smoothly transitions with the inner surface of the crawler body.
[0014] Furthermore, the edge protrusion structures and the inner protrusion structures are arranged at the same intervals in the length direction of the track.
[0015] Furthermore, each surface of the edge protrusion structure and each surface of the inner protrusion structure and the inner surface of the track body are smoothly transitioned with rounded corners or arcs.
[0016] Compared with the prior art, the present invention has the following advantages:
[0017] (1) The guide surface and mud-shedding surface of the edge protrusion structure form a ridge-like portion with an acute angle. During driving, the crawler scrapes off the mud accumulated on the road wheels and other components through this portion. At the same time, the inclined mud-shedding surface facilitates the discharge of mud to the outside, thereby reducing the accumulation of mud inside the travel system. When the travel system slips, the edge protrusion structure can throw out mud and sand under the action of the crawler sliding, preventing mud and sand from entering the travel system.
[0018] (2) The continuous and smooth curved surface of the driving surface of the inner protrusion structure can make the inner protrusion structure have appropriate height and strength, while ensuring that during the meshing process between the driving wheel and the track, the driving pin on the driving wheel can directly support the bottom of the inner protrusion structure, that is, the arc transition between the driving surface and the inner surface of the track body, thereby entering the meshing state, rather than contacting the driving surface and sliding a certain distance before supporting the bottom of the inner protrusion structure, and directly leaving from the bottom of the inner protrusion structure when disengaging. This reduces the wear and heat caused by the sliding between the driving wheel and the track during the meshing process, increases the service life of related components, and reduces the power consumption of the rubber track walking system;
[0019] In addition, when the walking system is moving, the ridges formed by the guide surface and the driving surface of the inner raised structure can further scrape off the accumulated mud and debris that have entered the walking system on the components such as the road wheels, and the scraped mud and debris will enter the gap along the length direction of the inner raised structure. The mud and debris in the gap will be squeezed out and fall off when the crawler track is engaged with the driving wheel, and some of the mud and debris can fall within the range of action of the edge raised structure and be discharged.
[0020] Through the above-mentioned effects, it is ensured that mud and debris are prevented from entering the traveling system when passing through harsh terrain, and the internal mud and debris are gradually discharged during driving after leaving the harsh terrain, thereby achieving self-cleaning. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:
[0022] Figure 1 A schematic diagram of the present invention applied to a rubber crawler walking system;
[0023] Figure 2 A schematic diagram of the invention creating engagement with the drive wheel;
[0024] Figure 3 A schematic diagram of the relationship between the present invention and the position of the road wheels;
[0025] Figure 4 Create a structural schematic diagram for the present invention;
[0026] Figure 5 Schematic diagram of the cord layer and the reinforcing element portion in the invention.
[0027] Description of reference numerals:
[0028] 1- rubber track; 2- road wheel; 3- driving wheel; 4- track body; 5- edge protrusion structure; 6- inner protrusion structure; 7- normal vector of track body inner surface; 8- guide surface of edge protrusion structure; 9- mud removal surface of edge protrusion structure; 10- rear wall of edge protrusion structure; 11- ridge part of edge protrusion structure; 12- driving surface of inner protrusion structure; 13- guide surface of inner protrusion structure; 14- ridge part of inner protrusion structure; 15- driving pin; 16- cord layer; 17- reinforcing element; 18- pattern protrusion; 19- inner surface of track body. DETAILED DESCRIPTION
[0029] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.
[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.
[0031] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.
[0032] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.
[0033] A self-cleaning rubber track, such as Figure 4 As shown, the walking system using the rubber track is as follows Figure 1 The rubber crawler walking system also has components such as drive wheels and road wheels. The meshing process of the rubber crawler and the drive wheel is shown in Figure 1 and Figure 2 As shown in Figure 1, the relationship between the rubber track and the road wheel is as follows: Figure 3 shown.
[0034] like Figures 1 to 5 As shown, the rubber crawler includes a crawler body 4, in which a cord layer 16 and a reinforcing element 17 are arranged, and on the outer surface of the crawler body there are pattern protrusions 18, etc.; the width direction of the crawler is X, the length direction is Y, and the normal vector 7 of the crawler body surface points from the outer surface of the crawler body to the inner surface 19. The specific parts in the structure of the attached figure are the guide surface 8 of the edge protrusion structure, the desludging surface 9 of the edge protrusion structure, the rear wall 10 of the edge protrusion structure, and the ridge-shaped part 11 of the edge protrusion structure. The inner protrusion structure driving surface 12, the inner protrusion structure guide surface 13, and the inner protrusion structure ridge-shaped part 14.
[0035] There is a row of edge protrusion structures 5 on the inner surface 19 of the track body and on both sides of the track body 4, and there are three rows of inner protrusion structures 6 in the middle of the track body and between the two rows of edge protrusion structures on the inner surface of the track body, and the shape of each row of inner protrusion structures 6 is the same. The spacing between the above-mentioned two rows of edge protrusion structures and three rows of inner protrusion structures on the inner surface of the track along the width direction of the track is roughly the same. The positions of the edge protrusion structures and each inner protrusion structure correspond one to one in the length direction of the track. The two corresponding edge protrusion structures on both sides of the track (the positions are consistent in the length direction of the track) and the three inner protrusion structures between them are arranged in a row. In this way, multiple rows are arranged at equal intervals in the length direction of the track, and the interval is the pitch of the track.
[0036] After the rubber track 1 is assembled, the road wheel 2 is located in the gap between each row of raised structures in the track width direction and rolls over the inner surface 19 of the track body. When the driving wheel 3 is engaged with the track 1, the driving pin 15 involved in the engagement is located in the gap between the inner raised structures 6 in the track length direction and close to the bottom of the inner raised structures 6.
[0037] The bottom of the edge raised structure 5 is fixedly connected to the track body 4, and its top is a plane. The side surface is mainly composed of 4 planes, including 1 guide surface, 2 demud surfaces and 1 rear wall. The side surface of the edge raised structure and the bottom plane, between the side surfaces, and the side surface and the inner surface of the track are all smoothly connected by chamfers or arcs. The guide surface 8 is close to the middle of the track, the rear wall 19 is close to the edge of the track, and the two demud surfaces 9 are located on both sides. Each surface is inclined inward and has an angle of 0° to 20° with the normal vector 7 of the inner surface of the track body. The guide surface 8 is parallel to the length direction Y of the track, and the demud surface 9 has an angle of 30° to 90° with the guide surface 8, so that the demud surface 9 and the guide surface 8 have a smooth transition to form a ridge-like portion 11.
[0038] When the rubber track is running, the ridged portion 11 of the edge protrusion structure can continuously scrape off the mud and debris accumulated on the components such as the road wheels, and the inclined mud removal surface facilitates the discharge of mud and debris, thereby reducing the accumulation of mud and debris inside the walking system. When the walking system slips, the edge protrusion structure can throw out mud and sand under the action of the sliding of the track, preventing mud and sand from entering the walking system.
[0039] The edge protrusion structure 5 can be called a guide tooth because of its guiding function.
[0040] The bottom of the inner protrusion structure 6 is fixedly connected to the crawler body 4, and the top thereof is a plane. The two sides in the crawler width direction X are guide surfaces 13, and the two sides in the crawler length direction Y are driving surfaces 12, wherein the two guide surfaces 13 are inclined inwards, and form an angle of 0 to 10° with the normal vector 7 of the inner surface of the crawler body. The driving surface 12 is mainly an arc-shaped surface, and the bottom thereof smoothly transitions with the inner surface of the crawler body through an arc, and the radius of the arc matches the radius of the driving pin 15 of the driving wheel 3. The shape of the driving surface allows the driving pin 15 to directly support the bottom of the inner protrusion structure 6, i.e., the arc transition between the driving surface 12 and the inner surface 19 of the crawler body, to drive the crawler 1 when the crawler 1 is engaged with the driving wheel 3 without friction with the driving surface 12, and directly press against the bottom of the inner protrusion structure 6, i.e., the arc transition between the driving surface 12 and the inner surface 19 of the crawler body, to drive the crawler 1; when the driving pin 15 is disengaged, it also directly disengages from this place.
[0041] In addition to the smooth transition between the driving surface and the inner surface of the crawler body by means of an arc, the driving surface 12, the guide surface 13 and the top plane also have smooth transitions by means of rounded corners or arcs, and the guide surface 13 and the inner surface 19 of the crawler body also have smooth transitions by means of rounded corners or arcs. The smooth transition between the guide surface 13 and the driving surface 12 forms a ridge-like portion 14 of an inner convex structure.
[0042] When the walking system is moving, the ridged part 14 of the inner protrusion structure can further scrape off the accumulated mud and debris that has entered the walking system on the components such as the road wheel 2, and the scraped mud and debris will enter the gap along the length direction of the inner protrusion structure. The mud and debris in the gap will be squeezed out and fall off when the crawler 1 is engaged with the driving wheel 3, and some of the mud and debris can fall into the action range of the edge protrusion structure 5, and thus be discharged.
[0043] The inner protrusion structure 6 has driving and guiding functions and can be called a driving tooth or a guiding tooth.
[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims
1. A self-cleaning rubber crawler, comprising a crawler body, the outer surface of which has a pattern protrusion, characterized in that: A single row or several rows of raised structures are provided on the inner surface of the track body near the edge of the track body, the bottom of the edge raised structure is fixedly connected to the track body, and the ends extending in all directions along the inner surface of the track body form side surfaces, and the side surfaces are inclined inward at various places, so that the shape of the edge raised structure gradually shrinks from bottom to top; the side surface of the edge raised structure near the middle of the track body has a plane structure, and the plane is roughly parallel to the length direction of the track, which is used to guide the track and is called a guide surface; the edge raised structure has a plane structure on the surface of both ends or one end in the length direction of the track, which is called a demud surface; the guide surface is close to the middle of the track, and the rear wall is close to the edge of the track, and the two demud surfaces are located on both sides, each of which is inclined inward and has an angle of 0° to 20° with the normal vector of the inner surface of the track body; the guide surface is parallel to the length direction of the track, and the demud surface and the guide surface have an angle of 30° to 90°, so that a ridge is formed between the demud surface and the guide surface.
2. A self-cleaning rubber track according to claim 1, characterized in that: A single row or several rows of raised structures are also provided on the inner surface of the rubber track away from the edge of the track body. The bottom of the inner raised structure is fixedly connected to the track body. The length from the bottom to the top gradually decreases along the width direction of the track, and the length from the bottom to the top gradually decreases along the length direction of the track, so that the shape of the inner raised structure gradually shrinks from the bottom to the top.
3. A self-cleaning rubber track according to claim 2, characterized in that: The inner protrusion structure extends along the length direction of the crawler track to form a driving surface, and the driving surface is a continuous and smooth curved surface.
4. A self-cleaning rubber track according to claim 2, characterized in that: The end of the inner protrusion structure extending along the width direction of the track has a plane structure, which is roughly parallel to the length direction of the track and is used to guide the track, and is called a guide surface.
5. A self-cleaning rubber crawler according to claim 1 or 2, characterized in that: The edge protrusion structures and the inner protrusion structures are arranged at the same intervals in the length direction of the crawler track.
6. A self-cleaning rubber track according to claim 1 or 2, characterized in that: The surfaces of the edge protrusion structure and the inner protrusion structure and the inner surface of the crawler body are all smoothly transitioned with rounded corners or arcs.