A high-precision tensile-resistant tapered tooth synchronous belt and its enhanced structure

By adopting the vertical and horizontal dense array bevel tooth structure and the design of reinforced mesh, holding ribs and flexible bottom plates, the transmission accuracy and life of the synchronous belt under high precision and heavy loads is solved, and the transmission effect of high precision, strong force, uniform load and long life is achieved.

CN120312801BActive Publication Date: 2025-08-29SHANGHAI JIUNENG ENERGY SCI & TECH DEV
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Patent Information

Application Number
CN202510812101.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-06-18
Publication Date
2025-08-29
Estimated Expiration
2045-06-18

AI Technical Summary

Technical Problem

In high-precision, heavy load and long-life transmission occasions, existing synchronization belts have problems such as concentrated tooth root stress, uneven wear of tooth surface, insufficient tensile strength, and cumulative error of tooth pitch. The lack of effective longitudinal tensile and lateral positioning mechanisms, resulting in a decrease in transmission accuracy and shortening of service life.

Method used

The bevel tooth structure with a dense vertical and horizontal array is adopted, combined with the design of the reinforced mesh, holding ribs and flexible bottom plate, the bevel teeth automatically correct the position deviation, enhance the wear resistance of the tooth surface and the tensile strength of the belt body. By strengthening the mesh, the bevel tooth teeth provide elasticity ratio, disperse the stress of the tooth root, and improve transmission accuracy and reliability.

Benefits of technology

It significantly improves the transmission accuracy and load-bearing capacity of the synchronization belt, extends the service life, ensures the synchronization and transmission stability of multi-point meshing, enhances the wear resistance and tensile strength of the tooth surface, and solves the transmission problem of traditional synchronization belts under high precision and heavy loads.

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Abstract

The present invention discloses a high-precision tensile-resistant bevel tooth synchronous belt and its reinforced structure, which belongs to the technical field of synchronous belts. The structure consists of bevel teeth, a reinforcing net, holding ribs and a base plate, and significantly improves the transmission performance of the synchronous belt by optimizing the internal structure. The bevel teeth are arranged in a dense vertical and horizontal manner, and are composed of teeth, gear rods and gear seats. The gear seats are fixed on the flexible base plate and combined with the upper pressure pad to ensure positioning and give elasticity. The holding ribs run through the bevel teeth longitudinally to enhance the tensile strength; the reinforcing net limits the displacement of the bevel teeth and enhances lateral stability. The teeth are made of solid metal, and their conical cylindrical structure is adapted to the concave conical barrel gear to achieve multi-point meshing and automatic correction. Through the unique bevel tooth meshing structure and internal reinforcement system, the problems of stress concentration and uneven force on the tooth roots of traditional synchronous belts are solved, which makes the present invention have significant advantages in special transmission fields such as high precision, strong force, uniform load and long life.
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Description

Technical Field

[0001] The present invention belongs to the technical field of synchronous belts, and in particular relates to a high-precision tensile-resistant tapered tooth synchronous belt and a reinforced structure thereof. Background Art

[0002] In traditional synchronous belt transmission systems, conventional trapezoidal or circular-arc tooth synchronous belts, while capable of meeting general transmission requirements, still exhibit significant limitations in specialized operating conditions such as high precision, heavy loads, and long life. Existing synchronous belts generally utilize a composite structure of a rubber matrix and fiber reinforcement, with the teeth often molded from a single material. This can lead to problems such as stress concentration at the tooth root, uneven wear on the tooth surface, and insufficient tensile strength. Especially in transmission applications requiring multiple points of engagement and high synchronization accuracy, conventional synchronous belts often suffer from tooth deformation and belt stretching, leading to reduced transmission accuracy and shortened service life.

[0003] Furthermore, existing synchronous belt structures lack effective longitudinal tensile strength and transverse positioning mechanisms, making them susceptible to cumulative pitch errors under long-term alternating loads, impacting transmission stability. While some improved synchronous belts have attempted to improve performance by adding reinforcing fibers or modifying tooth profiles, these have failed to fundamentally address core issues such as uneven stress distribution within the belt and insufficient tooth positioning accuracy.

[0004] Therefore, there is an urgent need to develop a new synchronous belt architecture with optimized internal structure and enhanced mechanical properties to meet the needs of modern industry for high-precision, high-strength and long-life transmission belts. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a high-precision tensile-resistant tapered tooth synchronous belt and its enhanced structure.

[0006] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions:

[0007] A high-precision tensile-resistant tapered tooth synchronous belt and its enhanced structure, comprising:

[0008] Conical teeth, the conical teeth are arranged in a dense array in the vertical and horizontal directions, and the array distance is greater than the horizontal spacing. The conical teeth are composed of teeth, gear rods and gear seats. The gear seats are solid cones with their bottoms fixedly connected to the base plate.

[0009] A reinforcing net is horizontally arranged on the upper part of the conical teeth and is a rectangular lattice net structure with eyelets at its intersections, and the eyelets are sleeved on the gear rods;

[0010] A holding rib is longitudinally arranged along the middle of the bevel gear and is connected to or inserted through the gear rod;

[0011] The bottom plate is a flexible metal plate, and a plurality of line array marking points are provided on its upper surface. The gear seat fixes the array according to the marking points.

[0012] Preferably, the teeth are solid metal conical cylindrical structures with no tip on the top, an enlarged middle and lower cylindrical body, and a flange seat at the bottom, which is exposed outside the traditional belt body.

[0013] Preferably, a pressure pad is provided on the upper conical portion of the gear seat, and the pressure pad is a horizontal sleeve pad for limiting the parallel displacement and elastic floating ratio of the gear rod.

[0014] Preferably, the retaining bar is a fiber cluster or steel wire compilation material, and its diameter is 1 / 3 of the gear rod.

[0015] Preferably, the base plate and the gear seat are fixedly connected by welding.

[0016] Preferably, the reinforcing net, holding ribs, bottom plate, gear rod, gear seat and pressure pad are all hidden components, which are wrapped and covered by the rubber or colloid structure of the traditional belt body.

[0017] Preferably, the teeth are adapted to and mesh with an inwardly concave conical cylinder or porous hollow gear.

[0018] Preferably, the dense array of bevel teeth and the limiting effect of the reinforcing net enable the synchronous belt to have multi-point engagement, automatic correction and uniform transmission capabilities.

[0019] Preferably, a synchronous belt comprises the above-mentioned high-precision tensile-resistant tapered tooth synchronous belt and its reinforced structure.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention provides a high-precision tensile-resistant bevel tooth synchronous belt and its reinforced structure, which significantly improves the transmission accuracy and load-bearing capacity of the synchronous belt by adopting a densely arranged bevel tooth structure in both the vertical and horizontal directions, combined with the synergistic effect of a reinforcing net, holding ribs and a flexible bottom plate. The conical meshing design of the bevel teeth can automatically correct position deviations, ensure the synchronization of multi-point meshing, and at the same time enhance the wear resistance of the tooth surface and extend the service life. The longitudinal arrangement of the holding ribs greatly improves the tensile strength of the belt body, while the reinforcing net effectively limits the horizontal displacement of the bevel teeth and enhances the lateral stability. The combination of the flexible bottom plate and the pressure pad structure gives the belt body a reasonable elasticity ratio, giving it a certain degree of bending adaptability. In addition, the solid metal material and optimized structural design of the bevel teeth effectively disperse the tooth root stress, avoid the stress concentration problem of traditional synchronous belts, and further improve the transmission reliability and durability. The innovation of the overall structure gives the present invention significant advantages in special transmission fields such as high precision, strong force, uniform load and long life. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings and examples.

[0023] Figure 1 It is a partial cross-sectional schematic diagram of the present invention.

[0024] Figure 2 Schematic diagram of the main component array of the present invention.

[0025] Figure 3 It is a schematic diagram showing a partial structure of the present invention.

[0026] Description of reference numerals:

[0027] Conical gear 1, reinforcing mesh 2, holding rib 3, bottom plate 4, tooth 11, gear rod 12, gear seat 13, pressure pad 131. DETAILED DESCRIPTION

[0028] The exemplary embodiments will be described in detail herein, and examples thereof are shown in the accompanying drawings, which are merely illustrative and do not represent an exhaustive presentation of the present invention. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The terms "up, down, left, right, inside, outside, front, and back" that appear in the description are only used to illustrate the understanding of the present invention with reference to the drawings. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application; rather, they are merely examples of devices or methods consistent with certain aspects of the present application as detailed in the appended claims.

[0029] The present invention provides a high-precision tensile-resistant tapered tooth synchronous belt and its reinforced structure, which is suitable for upgrading the structure of special supporting V-belts, flat belts or conveyor belts or replacing transmission belts for special purposes. The special purposes generally refer to those requiring high precision, strong force, uniform load and long life.

[0030] like Figure 3 As shown, the present invention mainly consists of four key parts: a bevel tooth 1, a reinforcing mesh 2, a holding rib 3 and a base plate 4; wherein, the bevel tooth 1 is arranged on the base plate 4, the holding rib 3 is arranged in the middle of the bevel tooth 1, and the reinforcing mesh 2 is arranged in the upper part of the bevel tooth 1.

[0031] Specifically, the bevel gear 1 is a plurality of densely packed vertically and horizontally arrays, and is one of the important components of the present invention; the bevel gear 1 is mainly composed of teeth 11, a gear rod 12, and a gear seat 13, which can be seen in FIG. Figure 2As shown; the gear rod 12 is a solid cylindrical high-strength drill rod, and the tooth seat 13 is provided at the lower part of the gear rod 12. The tooth seat 13 is a solid cone in the shape of a right cone, and a pressure pad 131 is provided on the upper cone part of the cone. The pressure pad 131 is a horizontal sleeve pad, the purpose of which is to limit the parallel displacement of the gear rod 12 and the upward elastic floating ratio. The number of the pressure pads 131 is the same as the number of the bevel teeth 1; at the bottom of the gear seat 13 is the base plate 4, the base plate 4 is a flexible metal plate, and a plurality of line array marking points are provided on the upper surface of the base plate 4. The gear seat 13 is arranged according to the line array marking point array, and the base plate 4 and the gear seat 13 are fixedly connected, and the connection method is preferably welding.

[0032] Furthermore, the holding ribs 3 are longitudinal tension ribs, the purpose of which is to enhance the longitudinal tensile strength of the belt body; there are multiple holding ribs 3, each of which is arranged along the longitudinal direction of the bevel tooth 1, and the material of the holding ribs 3 is a fiber cluster or a steel wire compilation, and the holding ribs 3 and the tooth rod 12 are connected by a hoop or an interlaced connection; the diameter of the holding ribs 3 is 1 / 3 of the tooth rod 12.

[0033] Furthermore, the reinforcing mesh 2 is horizontally arranged above the holding rib 3. The reinforcing mesh 2 is an integrally formed rectangular lattice mesh. Hole rings are provided at the intersection of the lattice lines of the reinforcing mesh 2. The hole rings are mounted on the rod diameter of the gear rod 12. The reinforcing mesh 2 is arranged along the longitudinal and transverse directions of the bevel gear 1, further accurately limiting the horizontal displacement of the bevel gear while enhancing the longitudinal and transverse tension values.

[0034] Combined with attachment Figure 1-3 It can be understood that the reinforcing net 2, the holding ribs 3, the base plate 4, the gear rod 12, the gear seat 13, the pressure pad 131 and the base plate 4 in the present invention are all hidden components, which are arranged or replaced inside the traditional belt body and are wrapped or covered by an externally visible rubber or colloid structure.

[0035] Furthermore, the teeth 11 are made of solid metal wear-resistant material and are exposed on the outside of the traditional belt body, that is, the toothed part of the traditional belt body; the teeth 11 are arranged in a plurality of longitudinal and transverse arrays in the same manner as the bevel teeth 1, and the array distance is longitudinal>transverse; the teeth 11 are fixedly connected to the top of the tooth rod 12 inside the belt body; the teeth 11 are solid right conical cylinders, with no tip at the top, a significantly enlarged middle and lower cylinder, and a circular flange seat at the bottom, the flange of which is arranged inside the traditional belt body; the teeth 11 are adapted to be concave cone barrels or porous The hollow gear is meshed with it; the flexible bottom plate, reinforced mesh structure and pressure pad structure not only ensure the position accuracy but also give it a certain elasticity ratio, so that the finished product after being combined with the rubber or colloid of the traditional belt body can have a certain flexibility and slight bending; the invention can have multiple teeth and multiple points of meshing, the conical tooth meshing structure can automatically correct the position and ensure accuracy, the multi-tooth array can synchronously improve the uniform transmission capacity, and the multiple reinforcing ribs arranged longitudinally can improve the tensile strength. Through the combination of the above components or structures, the service life of the finished belt body can be extended.

[0036] In another embodiment, the reinforced structure of the present invention is combined with rubber or colloid technology to form a high-precision tensile tapered tooth synchronous belt. The partial cross-section effect after actual application is shown in Figure 1 shown.

[0037] While the specific embodiments of the present invention have been described in detail above, these are intended to be exemplary only, and the present invention is not limited thereto. For those skilled in the art, any equivalent modifications and substitutions to the present invention are also within the scope of the present invention. Therefore, any equivalent changes and modifications made without departing from the spirit and scope of the present invention are intended to be encompassed within the scope of the present invention.

Claims

1. A high-precision tensile-resistant tapered tooth synchronous belt and its enhanced structure, characterized in that: include: Conical teeth (1), the conical teeth (1) are in a dense array in both vertical and horizontal directions, the array distance is such that the longitudinal spacing is greater than the transverse spacing, the conical teeth (1) are composed of teeth (11), a gear rod (12) and a gear seat (13), the gear seat (13) is a solid cone with a bottom fixedly connected to the bottom plate (4); A reinforcing net (2) is horizontally arranged on the upper part of the conical teeth (1) and is a rectangular lattice net structure, with eyelets provided at its intersections, and the eyelets are sleeved on the gear rods (12); A holding rib (3) is longitudinally arranged along the middle portion of the conical tooth (1) and is connected to or interlaced with the tooth rod (12); The bottom plate (4) is a flexible metal plate, and a plurality of line array marking points are provided on its upper surface, and the tooth seat (13) fixes the array according to the marking points.

2. The high-precision tensile-resistant tapered tooth synchronous belt and its reinforced structure according to claim 1, characterized in that: The teeth (11) are solid metal conical cylindrical structures, with no tip on the top, an enlarged cylinder in the middle and lower parts, and a flange seat at the bottom, which is exposed outside the traditional belt body.

3. The high-precision tensile-resistant tapered tooth synchronous belt and its reinforced structure according to claim 1, characterized in that: The upper conical portion of the tooth seat (13) is provided with a pressure pad (131), and the pressure pad (131) is a horizontal sleeve pad used to limit the parallel displacement and elastic floating ratio of the gear rod (12).

4. The high-precision tensile-resistant tapered tooth synchronous belt and its reinforced structure according to claim 1, characterized in that: The retaining bar (3) is a fiber cluster or steel wire assembly material, and its diameter is 1 / 3 of the toothed rod (12).

5. The high-precision tensile-resistant tapered tooth synchronous belt and its reinforced structure according to claim 1, characterized in that: The base plate (4) and the gear seat (13) are fixedly connected by welding.

6. The high-precision tensile-resistant tapered tooth synchronous belt and its reinforced structure according to claim 1 or 3, characterized in that: The reinforcing net (2), the holding ribs (3), the bottom plate (4), the gear rod (12), the gear seat (13) and the pressure pad (131) are all concealed components and are wrapped and covered by the rubber or colloid structure of the traditional belt body.

7. The high-precision tensile-resistant tapered tooth synchronous belt and its reinforced structure according to claim 1, characterized in that: The teeth (11) are adapted to and mesh with the concave conical cylinder type or porous hollow type gear.

8. The high-precision tensile-resistant tapered tooth synchronous belt and its reinforced structure according to claim 1, characterized in that: The dense array of bevel teeth (1) and the limiting effect of the reinforcing net (2) enable the synchronous belt to have multi-point engagement, automatic correction and uniform transmission capabilities.

9. A synchronous belt, characterized in that: The invention comprises the high-precision tensile-resistant tapered tooth synchronous belt and its reinforced structure as described in any one of claims 1 to 8.

Citation Information

Patent Citations

  • Self-tracking drive arrangement with positive engagement

    EP0957289A1

  • Positive geared tracking pulley and belt for a reversible conveyor belt system

    US5630500A