Rubber group narrow v belt with high tensile strength
Patent Information
- Application Number
- CN202522506308.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-26
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-11-26
AI Technical Summary
传统橡胶联组窄V带多依赖单一的纤维绳作为抗拉构件，且纤维绳与橡胶基体的结合强度较低，在承受高负载（如重型机械启动瞬间的冲击负载、长时间满负荷运行的持续拉力）时，易出现纤维绳断裂、橡胶基体撕裂等问题；尤其在物流输送、矿山机械等重载场景中，V带断裂不仅会导致设备停机，还可能因突然停机引发生产事故，增加企业的维修成本与生产损失；因此，需要对上述问题进行改进
[0010]与现有技术相比，本实用新型的有益效果是：本实用新型通过主连接绳与第一连接绳、第二连接绳的多向配合，形成多维度抗拉网络，不再依赖单一纤维绳承载拉力，提高了V带整体的抗拉强度，进而能够实现高负载下的稳定应力分散功能；再通过橡胶带主体与底座的胶粘固接配合，强化橡胶基体与各抗拉构件的连接稳定性，避免纤维绳与橡胶基体脱离，提高了结构结合强度，进而能够实现长期满负荷运行时的部件防脱落功能；最终解决了传统橡胶联组窄V带依赖单一纤维绳抗拉、结合强度低，高负载下易断裂导致设备停机、引发事故及增加成本的问题，提高了V带的负载承载能力与运行可靠性，降低了企业的维修成本与生产损失。
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Figure CN224786282U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of banded narrow V-belt technology, and in particular to a rubber banded narrow V-belt with high tensile strength. Background Technology
[0002] In industrial production, agricultural machinery, logistics transportation, automobile manufacturing and other fields, rubber banded narrow V-belts are used as key power transmission components. With their compact structure and high transmission efficiency, they are widely used in power connection scenarios of equipment such as motors, water pumps, compressors and conveyor belts. Traditional rubber-coated narrow V-belts rely heavily on single fiber ropes as tensile components, and the bond strength between the fiber rope and the rubber matrix is relatively low. When subjected to high loads (such as the impact load at the moment of starting heavy machinery or the continuous tension during long-term full-load operation), problems such as fiber rope breakage and rubber matrix tearing are prone to occur. Especially in heavy-duty scenarios such as logistics transportation and mining machinery, V-belt breakage can not only lead to equipment downtime, but may also cause production accidents due to sudden shutdown, increasing the company's maintenance costs and production losses. Therefore, improvements are needed to address these issues. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rubber-coated narrow V-belt with high tensile strength.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a rubber-coated narrow V-belt with high tensile strength, comprising a rubber belt body, the top surface of the rubber belt body being a working surface, a heat-insulating layer being wrapped around the center of each trapezoidal strip formed by the working surface, multiple tensile strips being equidistantly arranged on both sides of the rubber belt body, a main connecting rope being threaded through the center of the trapezoidal strip formed by the working surface, a base being glued and fixed between the rubber belt body and the working surface, a first connecting rope being threaded through the inside of the trapezoidal strip near the four corners, and a second connecting rope being threaded through the four corners of the heat-insulating layer.
[0005] Preferably, the base and the working surface are a group of narrow V-belts bonded together by adhesive or heat fusion, and the main body of the tape, the base and the working surface are made of neoprene rubber and flexible polyester-cotton fabric.
[0006] Preferably, the rubber belt body has an installation groove inside and a corrugated plate is provided laterally, with both ends of the corrugated plate being fixedly connected to the inner walls of both sides of the rubber belt body.
[0007] Preferably, multiple fixing posts are symmetrically inserted on both sides of the corrugated plate, and the two ends of the fixing posts are fixedly connected to the inner walls of both ends of the rubber belt body. A connecting plate arranged along the axial direction of the fixing posts is fixedly connected to the rubber belt body at the lower end of the corrugated plate.
[0008] Preferably, the base is equipped with multiple tension springs extending along the working surface, and the two ends of the multiple tension springs are connected in parallel.
[0009] Preferably, the main connecting rope, the first connecting rope, and the second connecting rope are made of polyester soft rope.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model forms a multi-dimensional tensile network through the multi-directional cooperation of the main connecting rope, the first connecting rope, and the second connecting rope, no longer relying on a single fiber rope to bear the tensile force, thus improving the overall tensile strength of the V-belt and enabling stable stress dispersion under high loads; furthermore, the adhesive bonding between the rubber belt body and the base strengthens the connection stability between the rubber matrix and each tensile component, preventing the fiber rope from detaching from the rubber matrix, improving the structural bonding strength, and thus enabling the component anti-detachment function during long-term full-load operation; ultimately, it solves the problems of traditional rubber-linked narrow V-belts relying on a single fiber rope for tensile strength, low bonding strength, and easy breakage under high loads, leading to equipment downtime, accidents, and increased costs, thereby improving the load-bearing capacity and operational reliability of the V-belt and reducing the maintenance costs and production losses of enterprises. Attached Figure Description
[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a first-view schematic diagram of the overall structure proposed in this utility model; Figure 2 This is an enlarged schematic diagram of the main structure of the working surface proposed in this utility model; Figure 3 This is a first-view schematic diagram of the overall cross-sectional structure proposed in this utility model; Figure 4 This is a second-view schematic diagram of the overall cross-sectional structure proposed in this utility model.
[0012] The numbers in the diagram are: 1. Rubber belt body; 2. Working surface; 3. Main connecting rope; 4. Tension strip; 5. Corrugated plate; 6. Connecting plate; 7. Tension strip spring; 8. First connecting rope; 9. Heat insulation layer; 10. Base; 11. Second connecting rope; 12. Fixing column. Detailed Implementation
[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0014] Example: See Figures 1 to 4 This utility model discloses a high-tensile-strength rubber-coated narrow V-belt, comprising a rubber belt body 1, a working surface 2 on the top surface of the rubber belt body 1, a heat-insulating layer 9 wrapped around the center of each trapezoidal strip formed by the working surface 2, multiple tensile strips 4 evenly spaced on both sides of the rubber belt body 1, a main connecting rope 3 threaded through the center of the trapezoidal strip formed by the working surface 2, a base 10 glued and fixed between the rubber belt body 1 and the working surface 2, first connecting ropes 8 threaded through the four corners of the trapezoidal strip, and second connecting ropes 11 threaded through the four corners of the heat-insulating layer 9. The rubber belt body 1 serves as the core load-bearing structure, providing a stable installation foundation for all components. The heat-insulating layer 9 blocks the heat generated by friction on the working surface 2, protecting the internal components. The tensile strip 4 enhances the tensile strength on both sides of the rubber belt body 1. The main connecting rope 3, the first connecting rope 8, and the second connecting rope 11 form a multi-dimensional tensile network, dispersing longitudinal and transverse stresses. The base 10 strengthens the connection stability between the rubber belt body 1 and the working surface 2. These components constitute the basic framework of the device, laying the structural foundation for subsequent improvements to the overall performance of the V-belt. The seat 10 and the working surface 2 are composed of multiple narrow V-belts bonded together by adhesive or heat fusion. The belt body 1, the seat 10, and the working surface 2 are made of neoprene rubber and flexible polyester-cotton fabric. The design of multiple narrow V-belts connected together increases the contact area between the V-belts and the pulleys, improving power transmission efficiency. The adhesive or heat fusion connection method ensures a firm connection between the narrow V-belts, preventing separation during operation. Neoprene rubber has excellent high strength, flexural resistance, and aging resistance, while the flexible polyester-cotton fabric enhances the material's toughness. The combination of the two makes the belt body 1, The base 10 and the working surface 2 are not prone to cracking or deformation during long-term use; the rubber belt body 1 has an installation groove inside and a corrugated plate 5 is provided laterally. The two ends of the corrugated plate 5 are fixed to the inner walls on both sides of the rubber belt body 1; the corrugated plate 5 is arranged laterally inside the rubber belt body 1. Its corrugated structure can absorb bending stress through its own deformation when the V-belt bends and passes around the pulley, reducing material fatigue damage; the fixed connection with the inner wall of the rubber belt body 1 ensures that the corrugated plate 5 does not shift when under force, stably plays its anti-bending role, and extends the service life of the V-belt.
[0015] In this invention, multiple fixing posts 12 are symmetrically inserted through both sides of the corrugated plate 5. The two ends of each fixing post 12 are fixedly connected to the inner walls of both ends of the rubber belt body 1. A connecting plate 6, arranged axially along the fixing posts 12, is fixedly connected to the lower end of the rubber belt body 1 at the lower end of the corrugated plate 5. The fixing posts 12 penetrate the corrugated plate 5 and are fixedly connected to the inner walls of the rubber belt body 1, connecting the corrugated plate 5 and the rubber belt body 1 into a whole, thus improving structural rigidity. The connecting plate 6, arranged axially along the fixing posts 12, further strengthens the connection between the fixing posts 12, forming a stable internal support frame that effectively resists shear and impact forces during V-belt operation, preventing component loosening. Multiple tension springs 7 extending along the working surface 2 are installed inside the base 10, with both ends of the multiple tension springs 7 connected in parallel. The tension springs 7, extending along the working surface 2, can withstand tension on the V-belt. Synchronous expansion and contraction help disperse tensile stress; the parallel design at both ends ensures that multiple springs are evenly stressed, and even if one spring fails, the others can still work normally, improving the reliability of the device; at the same time, the elastic properties of the springs can absorb vibrations during operation, reduce noise, and improve the smoothness of V-belt operation; the main connecting rope 3, the first connecting rope 8, and the second connecting rope 11 are made of polyester soft rope; polyester soft rope has the characteristics of high strength, high elastic modulus, and low shrinkage rate. As the skeleton material of the rubber-linked narrow V-belt, it can effectively improve the overall tensile strength of the V-belt and prevent the V-belt from becoming too long or breaking due to excessive stretching during operation; in addition, polyester soft rope is wear-resistant and aging-resistant, and can maintain stable performance under long-term stress and high temperature environment, ensuring the service life of the V-belt.
[0016] Working Principle: When the V-belt is installed on the pulley, the working surface 2 is in close contact with the trapezoidal groove of the pulley, and the power is transmitted by friction. At this time, the main connecting rope 3 located at the center of the trapezoidal strip formed by the working surface 2 acts as the main tensile component and bears most of the longitudinal tensile stress. At the same time, the first connecting rope 8 near the four corners of the trapezoidal strip and the second connecting rope 11 at the four corners of the heat-insulating layer 9 form an auxiliary stress-bearing network, which disperses the stress to the four corners of the trapezoidal strip and avoids local tearing. Inside the rubber belt body 1, the transversely arranged corrugated plate 5 can adapt to deformation when the V-belt bends to reduce fatigue aging. Multiple fixing columns 12 running through both sides fix it to the inner wall of the rubber belt body 1 to form a solid internal frame, which improves the overall structural strength and impact resistance. The connecting plate 6 located at the lower end of the corrugated plate 5 further connects the fixing columns 12 into a whole to share the stress in multiple directions. The base 10 extends along the working surface 2 and has both ends connected. The multiple tension springs 7 connected in series can absorb energy through expansion and contraction when the V-belt vibrates due to load fluctuations or non-coplanarity of the pulleys, acting as a damping buffer, improving operational stability and reducing impact damage to components. The parallel design also ensures overall reliability in the event of a single spring failure. Meanwhile, the heat generated by the friction between the working surface 2 and the pulley during high-speed operation of the V-belt is blocked by the heat-insulating layer 9 wrapped in the center of the trapezoidal strip, preventing the core components from softening or aging due to high temperatures. Furthermore, the combination of neoprene rubber and flexible polyester-cotton fabric used in the rubber belt body 1, base 10, and working surface 2, as well as the polyester soft rope used in the main connecting rope 3, first connecting rope 8, and second connecting rope 11, provide support in terms of elasticity, wear resistance, heat resistance, high strength, and low elongation from the material level. Ultimately, through the synergistic effect of various structures and materials, the tensile strength, fatigue resistance, and service life of the V-belt are improved in multiple dimensions, ensuring its reliable operation in demanding power transmission scenarios. Thus, the device is completed.
[0017] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A rubber-coated narrow V-belt with high tensile strength, comprising a rubber belt body (1), characterized in that: The top surface of the rubber belt body (1) is the working surface (2). A heat-insulating layer (9) is wrapped around the center of the trapezoidal strip formed by the working surface (2). Multiple tensile strips (4) are equidistantly arranged on both sides of the rubber belt body (1). A main connecting rope (3) is threaded through the center of the trapezoidal strip formed by the working surface (2). A base (10) is glued and fixed between the rubber belt body (1) and the working surface (2). A first connecting rope (8) is threaded through the inside of the trapezoidal strip near the four corners. A second connecting rope (11) is threaded through the four corners of the heat-insulating layer (9).
2. The high tensile strength rubber-coated narrow V-belt according to claim 1, characterized in that: The base (10) and the working surface (2) are a group of narrow V-belts that are bonded together by adhesive or heat-melting. The tape body (1), the base (10) and the working surface (2) are made of neoprene rubber and flexible polyester-cotton fabric.
3. The high tensile strength rubber-coated narrow V-belt according to claim 2, characterized in that: The rubber belt body (1) has an installation groove inside and a corrugated plate (5) is provided laterally. The two ends of the corrugated plate (5) are respectively fixed to the inner walls of the two sides of the rubber belt body (1).
4. The high tensile strength rubber-coated narrow V-belt according to claim 3, characterized in that: Multiple fixing posts (12) are symmetrically inserted on both sides of the wave plate (5). The two ends of the fixing posts (12) are fixed to the inner walls of the two ends of the rubber belt body (1). The rubber belt body (1) is fixed to a connecting plate (6) arranged along the axial direction of the fixing posts (12) at the lower end of the wave plate (5).
5. The high tensile strength rubber-coated narrow V-belt according to claim 4, characterized in that: The base (10) is equipped with multiple tension springs (7) extending along the working surface (2), and the two ends of the multiple tension springs (7) are connected together in parallel.
6. The high tensile strength rubber-coated narrow V-belt according to claim 5, characterized in that: The main connecting rope (3), the first connecting rope (8) and the second connecting rope (11) are made of polyester soft rope.