Synchronous belt bilateral balance mechanism

By setting a counterweight assembly, support, and unpowered roller assembly on the non-working surface of the synchronous belt drive system to form a double-sided symmetrical balance, the vibration and wear problems caused by uneven mass in traditional synchronous belt drive systems are solved, thus achieving stable operation and extended service life of the equipment.

CN224225923UActive Publication Date: 2026-05-12GUANGZHOU HORIZON PRINTING CO LTD
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Patent Information

Application Number
CN202520857705.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-30
Publication Date
2026-05-12
Estimated Expiration
2035-04-30

AI Technical Summary

Technical Problem

Traditional synchronous belt drive systems suffer from vibration, noise, and equipment wear due to uneven mass distribution or dynamic imbalance, which affects equipment stability and service life.

Method used

A synchronous belt double-sided balancing mechanism is designed. By setting a counterweight component, a support, and a non-powered roller assembly on the non-working surface of the synchronous belt to form a mass-symmetrical structure, double-sided symmetrical balance is achieved, eliminating vibration and sway caused by unilateral load.

Benefits of technology

It effectively reduces vibration and impact in synchronous belt drive systems, reduces wear on equipment parts, extends equipment service life, and achieves precise dynamic balance adjustment through modular design.

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Abstract

The utility model belongs to the technical field of mechanical transmission, and discloses a synchronous belt double-side balance mechanism which comprises a power roller provided with driving equipment; the synchronous belt forms a closed transmission loop and is arranged around the power roller and the second unpowered roller; the bracket is connected with the synchronous belt; the plurality of first unpowered rollers are arranged on the bracket; the counterweight assembly is arranged on the synchronous belt; wherein the balance weight assembly, the support and a combined body of the first unpowered roller form a mass symmetric structure, and equivalent movement in opposite directions is generated when the balance weight assembly is driven by the power roller; according to the utility model, the bracket and the first unpowered roller are arranged on the working surface of the synchronous belt, and the counterweight assembly is arranged on the non-working surface of the synchronous belt, so that a bilateral symmetrical balance layout is formed. Through the arrangement, vibration and swing caused by a single-side load are effectively eliminated, and the stability of equipment operation is remarkably improved.
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Description

Technical Field

[0001] This utility model relates to the field of mechanical transmission technology, and in particular to a synchronous belt double-sided balancing mechanism. Background Technology

[0002] Synchronous belt drive systems are widely used in material handling and power transmission in fields such as industrial automation, logistics, and precision machining. However, traditional synchronous belt drive systems often suffer from vibration, noise, and equipment wear due to uneven mass distribution or dynamic imbalance during operation, which seriously affects the stability and service life of the equipment.

[0003] In synchronous belt drive systems, components such as supports and unpowered rollers are typically mounted on one side of the working surface of the synchronous belt, while the other side lacks a corresponding balancing structure. This unilateral load causes the synchronous belt to vibrate and oscillate at high speeds, affecting transmission accuracy. Due to the prominent dynamic imbalance problem in traditional systems, excessive wear is prone to occur during equipment operation, increasing maintenance frequency and costs. Utility Model Content

[0004] The main purpose of this utility model is to provide a dual-sided balancing mechanism for synchronous belts, which aims to solve the technical problems of vibration, noise and equipment wear caused by uneven mass distribution or dynamic imbalance in synchronous belt drive systems during operation.

[0005] To achieve the aforementioned objectives, the first aspect of this utility model provides a synchronous belt double-sided balancing mechanism, comprising:

[0006] The power roller is equipped with a drive device;

[0007] A synchronous belt, which forms a closed transmission loop, is arranged around the powered roller and the second unpowered roller;

[0008] The bracket is connected to the timing belt;

[0009] Several first unpowered rollers are mounted on the support;

[0010] The counterweight assembly is mounted on the timing belt;

[0011] The counterweight assembly, together with the support and the first unpowered roller, forms a mass-symmetrical structure, and generates equal motions in opposite directions when driven by the powered roller.

[0012] Furthermore, the bracket and the first unpowered roller are disposed on one side of the working surface of the synchronous belt, and the counterweight assembly is disposed on the other side of the non-working surface of the synchronous belt, forming a symmetrical balanced layout on both sides.

[0013] Furthermore, the total mass of the counterweight assembly is equal to the total mass of the support and the first unpowered roller assembly.

[0014] Furthermore, the counterweight component is made of a high-density metal block.

[0015] Furthermore, the counterweight assembly includes a first counterweight block and a plurality of second counterweight blocks connected to the first counterweight block.

[0016] Furthermore, each of the first counterweight and several second counterweights has an installation groove on one side, and each of the several second counterweights has a fixedly connected installation hook that matches and engages with the installation groove on one side.

[0017] Furthermore, the first counterweight is fixedly mounted on the timing belt by bolts.

[0018] Furthermore, the drive device connected to the power roller is a motor, and the motor is connected to the power roller for transmission via belt drive.

[0019] Furthermore, the distance between two adjacent first unpowered rollers is 0.2-0.5 times the width of the material.

[0020] Furthermore, the support structure adopts a truss-type aluminum alloy structure.

[0021] Beneficial effects:

[0022] 1. This utility model uses a bracket and a first unpowered roller positioned on the working surface of the synchronous belt, while the counterweight assembly is positioned on the non-working surface, forming a symmetrical balanced layout on both sides. This arrangement effectively eliminates vibration and sway caused by unilateral load, canceling out the impact generated by high-speed movement on both sides, resulting in the smoothest machine operation. The optimized dynamic balance significantly reduces vibration and impact in the synchronous belt drive system, lowers the wear of equipment components, and thus extends the service life of the equipment.

[0023] 2. This utility model utilizes a modular design for the counterweight assembly, allowing for flexible adjustment of the number and position of the counterweights to ensure precise dynamic balance. The counterweight assembly is made of high-density metal material, achieving a large mass within a limited volume, saving space and improving the system's compactness. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a synchronous belt double-sided balancing mechanism according to an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the counterweight assembly of a synchronous belt double-sided balancing mechanism according to an embodiment of the present invention;

[0026] Figure 3This is a synchronous belt double-sided balancing mechanism according to an embodiment of the present invention. Figure 2 Enlarged diagram of point A in the middle.

[0027] in:

[0028] 1-Second unpowered roller; 2-Synchronous belt; 3-Counterweight assembly; 31-First counterweight block; 32-Second counterweight block; 33-Mounting groove; 34-Mounting hook; 4-Powered roller; 5-Material; 6-First unpowered roller; 7-Bracket.

[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0031] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly and specifically defined.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] Reference Figures 1-3 An embodiment of this utility model provides a synchronous belt double-sided balancing mechanism, comprising:

[0035] The power roller 4 is equipped with a drive device;

[0036] Synchronous belt 2, which forms a closed transmission loop, is arranged around the powered roller 4 and the second unpowered roller 1;

[0037] The bracket 7 is connected to the timing belt 2;

[0038] Several first unpowered rollers 6 are disposed on the support 7;

[0039] Counterweight component 3 is disposed on the timing belt 2;

[0040] The counterweight assembly 3, together with the support 7 and the first unpowered roller 6, forms a mass-symmetrical structure, and generates equal motions in opposite directions when driven by the power roller 4.

[0041] The bracket 7 and the first unpowered roller 6 are disposed on one side of the working surface of the synchronous belt 2, and the counterweight assembly 3 is disposed on the other side of the non-working surface of the synchronous belt 2, forming a symmetrical balanced layout on both sides.

[0042] In this embodiment

[0043] The driven roller 4 is rotated by a drive device such as a motor. The motor is connected to the driven roller 4 via a belt drive, providing stable power output. The synchronous belt 2 forms a closed transmission loop, surrounding the driven roller 4 and the second undriven roller 1. The synchronous belt 2 can be made of high-strength rubber or polyurethane material 5, which has good wear resistance and tensile strength. The bracket 7 is fixed on one side of the working surface of the synchronous belt 2 to support other components. Several first undriven rollers 6 are arranged on the bracket 7 to support the synchronous belt 2 and reduce friction. The counterweight assembly 3 is arranged on the other side of the non-working surface of the synchronous belt 2, forming a mass-symmetrical structure with the bracket 7 and the first undriven rollers 6. When the driven roller 4 is driven, the counterweight assembly 3, the bracket 7, and the first undriven rollers 6 assembly produce equal movements in opposite directions, thereby achieving dynamic balance.

[0044] The counterweight assembly 3 is set on the non-working surface of the synchronous belt 2, while the bracket 7 and the first unpowered roller 6 are set on the working surface of the synchronous belt 2, forming a symmetrical arrangement on both sides.

[0045] Optionally, the total mass of the counterweight assembly 3 is equal to the total mass of the bracket 7 and the first unpowered roller 6 assembly, and the mass deviation is controlled within ±5%.

[0046] It should be noted that the total mass of the counterweight assembly 3 is equal to the total mass of the assembly of the support 7 and the first unpowered roller 6, and the mass deviation is controlled within ±5%. For example, if the total mass of the assembly of the support 7 and the first unpowered roller 6 is 10 kg, then the mass of the counterweight assembly 3 should be between 9.5 kg and 10.5 kg.

[0047] The counterweight assembly 3 is made of five blocks of high-density metal with a density of not less than 7.8 g / cm³. The counterweight assembly 3 includes a first counterweight block 31 and several second counterweight blocks 32 connected to the first counterweight block 31. Each of the first counterweight block 31 and the several second counterweight blocks 32 has a mounting groove 33 on one side, and each of the several second counterweight blocks 32 has a mounting hook 34 fixedly connected to one side, which matches and engages with the mounting groove 33. The first counterweight block 31 is fixedly mounted on the timing belt 2 with bolts.

[0048] It should be noted that the counterweight component 3 is made of 5 blocks of high-density metal material with a density value of not less than 7.8 g / cm³, such as lead or tungsten alloy, in order to achieve a large mass within a limited volume.

[0049] The counterweight assembly 3 consists of a first counterweight block 31 and several second counterweight blocks 32. The first counterweight block 31 is fixedly mounted on the timing belt 2 by bolts, which facilitates disassembly and adjustment.

[0050] Each of the first counterweight 31 and the second counterweight 32 has a mounting groove 33 on one side, and several second counterweights 32 are fixedly connected to one side with mounting hooks 34 that match and engage with the mounting grooves 33. This design allows for flexible adjustment of the number and position of the counterweights to precisely match the mass of the bracket 7 and the first unpowered roller 6 assembly.

[0051] The drive device connected to the power roller 4 is a motor, and the motor is connected to the power roller 4 for transmission via belt drive.

[0052] The power roller 4 is driven by an electric motor. The motor is connected to the power roller 4 via a belt drive to ensure smooth and reliable power transmission. The selection of the motor should be determined according to the actual load requirements; for example, the power range can be 1kW to 5kW, and the speed range can be 1000rpm to 3000rpm.

[0053] The distance between two adjacent first unpowered rollers 6 is 0.2-0.5 times the width of the material 5. This spacing ensures smooth operation.

[0054] The support frame 7 adopts a truss-type aluminum alloy structure. The truss-type aluminum alloy structure of the support frame 7 ensures that it is lightweight while having sufficient strength.

[0055] Instructions: Fix the power roller 4 to the equipment frame and connect the motor to the power roller 4 via belt drive. Ensure that the output shaft of the motor is aligned with the rotation axis of the power roller 4 to guarantee smooth power transmission.

[0056] The synchronous belt 2 is wrapped around the powered roller 4 and the second unpowered roller 1 to form a closed transmission loop. The tension of the synchronous belt 2 is adjusted to ensure it is neither too loose nor too tight, preventing slippage or overload during operation. A counterweight assembly 3 is installed on the non-working surface of the other side of the synchronous belt 2. Based on the mass of the bracket 7 and the first unpowered roller 6 assembly, the total mass of the counterweight is accurately calculated, and the mass deviation is controlled within ±5%.

[0057] After ensuring all components are installed, start the motor and drive the power roller 4 to rotate via belt drive, thereby driving the synchronous belt 2 to run.

[0058] During operation, observe whether the counterweight assembly 3, the support 7, and the first unpowered roller 6 form equal movements in opposite directions. If vibration or imbalance is detected, adjust the mass or position of the counterweight appropriately until the optimal balance is achieved.

[0059] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A synchronous belt double-sided balancing mechanism, characterized in that, include: The power roller (4) is equipped with a drive device; Synchronous belt (2), which forms a closed transmission loop, is arranged around the power roller (4) and the second unpowered roller (1); The bracket (7) is connected to the timing belt (2); Several first unpowered rollers (6) are mounted on the support (7); A counterweight assembly (3) is disposed on the timing belt (2); The counterweight assembly (3), together with the support (7) and the first unpowered roller (6), forms a mass-symmetrical structure, and generates equal motions in opposite directions when driven by the power roller (4).

2. The synchronous belt double-sided balancing mechanism according to claim 1, characterized in that, The bracket (7) and the first unpowered roller (6) are disposed on one side of the working surface of the synchronous belt (2), and the counterweight assembly (3) is disposed on the other side of the non-working surface of the synchronous belt (2), forming a symmetrical balanced layout on both sides.

3. The synchronous belt double-sided balancing mechanism according to claim 1, characterized in that, The total mass of the counterweight assembly (3) is equal to the total mass of the bracket (7) and the first unpowered roller (6) assembly.

4. The synchronous belt double-sided balancing mechanism according to claim 1, characterized in that, The counterweight component (3) is made of a high-density metal block.

5. A synchronous belt double-sided balancing mechanism according to claim 4, characterized in that, The counterweight assembly (3) includes a first counterweight block (31) and a plurality of second counterweight blocks (32) connected to the first counterweight block (31).

6. A synchronous belt double-sided balancing mechanism according to claim 5, characterized in that, The first counterweight (31) and several second counterweights (32) are provided with mounting grooves (33) on one side, and the several second counterweights (32) are fixedly connected with mounting hooks (34) that match and engage with the mounting grooves (33) on one side.

7. A synchronous belt double-sided balancing mechanism according to claim 5, characterized in that, The first counterweight (31) is fixedly mounted on the timing belt (2) by bolts.

8. A synchronous belt double-sided balancing mechanism according to claim 1, characterized in that, The drive device connected to the power roller (4) is a motor, and the motor is connected to the power roller (4) for transmission via belt drive.

9. A synchronous belt double-sided balancing mechanism according to claim 1, characterized in that, The distance between two adjacent first unpowered rollers (6) is 0.2-0.5 times the width of the material (5).

10. A synchronous belt double-sided balancing mechanism according to claim 1, characterized in that, The support (7) adopts a truss-type aluminum alloy structure.