A homokinetic differential wheel

CN224742845UActive Publication Date: 2026-09-11LESHAN AIERTE AGRI MASCH TECH CO LTD
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Patent Information

Application Number
CN202522252270.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-24
Publication Date
2026-09-11
Estimated Expiration
2035-10-24

AI Technical Summary

Technical Problem

其中,离合器组件式结构需配备液压或电磁控制元件,不仅增加了设备的体积和制造成本,还存在密封要求高、易受环境干扰导致切换失效的问题;齿轮换挡机构则存在传动噪音大、磨损严重、维护周期短的缺陷,且对安装精度要求较高;双动力输出装置虽能实现独立驱动,但需额外配置动力源,违背了单一动力源的设计初衷,同时造成了能源浪费和设备结构冗余

Benefits of technology

第一,结构精简紧凑,降低实现成本:本同向异动转换轮仅通过皮带轮 A、皮带轮B、拨盘、轴套及轴承等基础部件的合理组合,即可实现单一动力源对两个皮带轮的选择性驱动,无需配备液压、电磁控制元件或复杂齿轮组,大幅简化了传动切换结构,减少了零部件数量,不仅降低了制造成本,还缩小了设备整体体积,适配中小型机械设备的安装空间需求。

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Abstract

The utility model discloses a same direction different motion conversion wheel, including pulley A, pulley B, dial, shaft sleeve and bearing, and pulley A and pulley B are connected in the both ends of shaft sleeve through bearing, and dial is located between pulley A and pulley B, and dial can slide left and right on the shaft sleeve, pulley B has the convex end A for abutting on this side close to dial, abutting hole and belt groove are seted up on pulley A, dial has the manual dialing end of extruding out, and the both sides of the ring body of dial have the convex driving end, when dial slides to pulley A, the driving end of dial slides into abutting hole, and at this moment can drive pulley A to rotate, when dial slides to pulley B, the driving end of dial corresponds with the convex end A of pulley B, and at this moment can drive pulley B to rotate. The outside of shaft sleeve is seted up keyway, and dial sliding is convenient. Dial can slide on the shaft sleeve through dial, and the purpose that one power drives two pulleys to rotate respectively is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of mechanical transmission, specifically to a co-directional, non-co-directional conversion wheel. Background Technology

[0002] In the field of mechanical transmission, belt pulley drives are widely used in various mechanical equipment, such as machine tools, conveying equipment, and agricultural machinery, due to their advantages of simple structure, low cost, and convenient maintenance. In practical applications, there is often a need for a single power source to selectively drive two different working parts. That is, using the same power input device, two different pulleys are switched according to the working conditions to achieve different transmission functions.

[0003] Existing technologies offer solutions to these needs, primarily including clutch assemblies, gear shifting mechanisms, or dual power output devices. Clutch assemblies require hydraulic or electromagnetic control components, increasing equipment size and manufacturing costs, and also presenting challenges such as high sealing requirements and susceptibility to environmental interference leading to switching failures. Gear shifting mechanisms suffer from high transmission noise, severe wear, and short maintenance cycles, and require high installation precision. While dual power output devices can achieve independent drive, they necessitate an additional power source, contradicting the design intent of a single power source and resulting in energy waste and structural redundancy.

[0004] Furthermore, some simple switching structures achieve pulley switching by manually inserting and removing pins or adjusting the position of the tensioner, but this operation is cumbersome and prone to jamming during switching, resulting in poor transmission stability and failing to meet the requirements of high-precision and high-efficiency transmission, while also posing safety hazards. Therefore, there is an urgent need for a compact, easy-to-operate, reliable, and low-cost co-directional non-directional switching pulley structure to solve the problems of complex structure, high cost, and inconvenient switching in existing technologies that selectively drive dual pulleys with a single power source, adapting to the transmission needs of various small and medium-sized mechanical equipment and improving the flexibility and practicality of the transmission system. Utility Model Content

[0005] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides a same-direction, different-direction conversion wheel.

[0006] This utility model is implemented by constructing a same-direction, opposite-direction conversion wheel, characterized in that: It includes pulley A, pulley B, dial, bushing and bearing; pulley A and pulley B are connected to the two ends of the bushing by bearing, the dial is located between pulley A and pulley B, and the dial can slide left and right on the bushing; The pulley B has a protruding end A for abutment on the side near the dial. The pulley A has a contact hole and a belt groove. The dial has an outwardly protruding manual actuating end, and the dial has protruding driving ends on both sides of its circular body. When the dial slides toward pulley A, the driving end of the dial slides into the contact hole, which can drive pulley A to rotate. When the dial slides toward pulley B, the driving end of the dial corresponds to the protruding end A of pulley B, which can drive pulley B to rotate.

[0007] According to the present invention, a co-directional and non-co-directional conversion wheel is characterized in that a keyway is provided on the outer side of the bushing to facilitate the sliding of the dial.

[0008] According to the present invention, a co-directional and non-co-directional conversion wheel is characterized in that: it can slide on the bushing through the dial; thus achieving the purpose of one power driving two pulleys to rotate separately.

[0009] According to the present invention, a co-directional and non-directional conversion wheel is characterized in that the part of the outer side of the bushing and the inner side of the dial that slide against each other can be made into a regular hexagonal, regular quadrilateral, or regular triangular shape.

[0010] This utility model has the following advantages: First, the structure is simplified and compact, reducing implementation costs: This same-direction, different-direction conversion wheel can achieve selective drive of two pulleys by a single power source through a reasonable combination of basic components such as pulley A, pulley B, dial, bushing and bearing. It does not require hydraulic or electromagnetic control components or complex gear sets, which greatly simplifies the transmission switching structure, reduces the number of parts, reduces manufacturing costs, and shrinks the overall size of the equipment, making it suitable for the installation space requirements of small and medium-sized mechanical equipment.

[0011] Secondly, it is convenient and efficient to operate, and has strong switching stability: the manual dial can be used to directly control the dial to slide left and right, realizing the rapid switching between pulley A and pulley B. The operation process is simple and intuitive. Compared with the traditional methods of inserting and removing pins and adjusting tension wheels, the switching efficiency is significantly improved, and the risk of jamming is avoided. At the same time, the keyway structure on the outside of the bushing further guides the dial to slide precisely, ensuring that the dial driving end and the pulley's contact hole and protruding end A form a stable fit, ensuring the continuity and reliability of power transmission.

[0012] Third, it has wide transmission adaptability and improves equipment flexibility: This structure can stably meet the core requirement of "a single power source driving two pulleys", and can be flexibly adapted to various scenarios such as machine tools, conveying equipment, and agricultural machinery that require multi-condition transmission switching. There is no need to add an extra power source, which reduces energy waste and reduces equipment structural redundancy, effectively improving the multifunctionality and application flexibility of the transmission system.

[0013] Fourth, low maintenance cost and long service life: The overall structure has no complex precision parts, the wear of parts is low, and the force distribution of each mating part (such as the drive end and the contact hole, the protruding end A6) is uniform, which can reduce mechanical loss during transmission; at the same time, the simple structural design facilitates daily maintenance and parts replacement, reduces the maintenance difficulty and long-term use cost of the equipment, and extends the overall service life of the transmission system.

[0014] Low operating noise and improved working environment: Compared with traditional switching structures such as gear shifting mechanisms, this solution achieves power switching through the mechanical cooperation of belt drive and dial, resulting in lower noise during operation. This effectively improves the working noise environment of mechanical equipment and enhances the operating experience. Attached Figure Description

[0015] Figures 1-3 This is a schematic diagram of the overall implementation of the conversion wheel in this application; Figure 4 This is a schematic diagram of pulley A and pulley B in this application; Figure 5 This is a schematic diagram of pulley A in this application; Figure 6 This is a schematic diagram of pulley B in this application; Figures 7-9 This is a schematic diagram of one embodiment of the bushing in this application; Figure 10 This is a side view of the dial in this application; Figure 11 This is a schematic diagram of another embodiment of the bushing in this application. Detailed Implementation

[0016] The following will be combined with the appendix Figures 1-11 This utility model will be described in detail, and the technical solutions in the embodiments of this utility model will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0017] This utility model provides a same-direction, opposite-direction conversion wheel, such as... Figures 1-9 As shown, it can be implemented in the following manner; including pulley A1, pulley B2, dial 3, bushing 4, and bearing; Belt pulleys A1 and B2 are connected to the two ends of bushing 4 via bearings 5. Dial 3 is located between belt pulleys A1 and B2 and can slide left and right on bushing 4. Belt pulley B2 has a protruding end A6 for contact with the dial 3. Belt pulley A1 has a contact hole 7 and a belt groove. Dial 3 has an outwardly extending manual actuating end 8. Both sides of the circular body of dial 3 have protruding driving ends 9. When dial 3 slides towards belt pulley A1, the driving end 9 of dial 3 slides into the contact hole 7, which drives belt pulley A1 to rotate. When dial 3 slides towards belt pulley B2, the driving end 9 of dial 3 corresponds to the protruding end A6 of belt pulley B2, which drives belt pulley B2 to rotate.

[0018] In the embodiments of this application, a keyway is provided on the outer side of the bushing 4 to facilitate the sliding of the dial 3.

[0019] In the embodiments of this application, the dial 3 can slide on the bushing, so as to achieve the purpose of one power driving two pulleys to rotate respectively.

[0020] In the embodiments of this application, the portion where the outer surface of the bushing 4 and the inner surface of the dial 3 slide relative to each other can be made into a regular hexagonal, regular square, or regular triangular shape. For example, Figure 11 As shown.

[0021] The social benefits and use value of this application are described below; I. Social Benefits: Facilitating technological upgrades for SMEs and lowering industry entry barriers: This simple, low-cost, and non-contrary conversion wheel eliminates the need for complex and precise control components, effectively reducing the investment costs for SMEs in multi-condition transmission systems. For SMEs with limited funds and relatively weak technical capabilities, this technology can be quickly adopted to upgrade equipment functions, enhance their market competitiveness, and thus promote the widespread adoption of technology across the entire mechanical transmission sub-sector, narrowing the technological gap between companies of different sizes.

[0022] Promoting energy conservation and emission reduction, and aligning with the concept of green development: This device achieves selective drive of dual pulleys through a single power source, avoiding the energy waste problem of traditional dual-power output devices and reducing energy consumption during equipment operation. At the same time, the streamlined structural design reduces material consumption and processing energy consumption during component production, conforming to national energy conservation and emission reduction industrial policies and helping the machinery manufacturing industry transform towards a green and low-carbon direction.

[0023] Improving production safety and the working environment: Compared to traditional switching methods involving inserting and removing pins and adjusting tension wheels, which are cumbersome and prone to jamming, this device allows for smooth switching via a manual dial, significantly reducing safety hazards during operation and decreasing the probability of production accidents. Furthermore, its operating noise is lower than that of gear shifting mechanisms, effectively improving the noise environment of workshops and other work areas and protecting the occupational health of operators.

[0024] Drive the coordinated development of related industries and create employment opportunities: The promotion and application of this patented technology will directly boost market demand for basic mechanical parts such as pulleys, bearings, and bushings, and promote the development of upstream parts manufacturing industries; at the same time, the production, installation, and maintenance processes during the technology implementation will also create more jobs, helping the upstream and downstream of the industrial chain to grow in synergy.

[0025] II. Use Value: Adaptable to multiple scenarios with precise transmission, solving pain points in practical applications: It can be widely used in various equipment requiring multiple operating condition switching, such as machine tools, agricultural machinery, conveying equipment, and small processing machinery. For example, in agricultural machinery, the alternating operation of the sowing and fertilizing mechanisms can be achieved by switching pulleys; in small machine tools, the power output of different cutting parts can be switched to precisely match different processing needs, effectively solving the problems of complex transmission switching and poor adaptability of traditional equipment.

[0026] Reducing the total lifecycle cost of equipment and improving user economic benefits: On the one hand, the streamlined structural design reduces initial investment during the equipment procurement phase; on the other hand, less wear and tear on parts and simpler maintenance processes reduce the cost of daily inspections and component replacements, while also reducing equipment downtime for maintenance and improving production efficiency. In the long term, this can significantly reduce users' equipment operating costs and increase return on investment.

[0027] Flexible and convenient operation enhances the user experience: The manual dial design allows operators to quickly switch pulleys without requiring professional skills training, lowering the operational threshold; the keyway guides the dial to slide precisely, ensuring the stability of power transmission, avoiding production interruptions caused by switching jams, and improving the smoothness and reliability of equipment use.

[0028] Adaptable to complex environments, expanding the application boundaries of equipment: Requiring no auxiliary control components such as hydraulics or electromagnetics, transmission switching is achieved solely through mechanical structures, resulting in greater adaptability to the operating environment. It can operate stably under harsh conditions such as insufficient power, high humidity, and high dust levels. It is particularly suitable for agricultural machinery and outdoor work equipment in remote areas, further expanding the application scope of mechanical equipment.

[0029] The above description of the disclosed embodiments enables those 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, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not 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

1. A reversible wheel with the same direction but different movement, characterized in that: Includes pulley A (1), pulley B (2), dial (3), bushing (4), and bearing (5); Pulley A (1) and pulley B (2) are connected to both ends of bushing (4) through bearing (5). Dial (3) is located between pulley A (1) and pulley B (2), and dial (3) can slide left and right on bushing (4). The pulley B (2) has a protruding end A (6) for abutment on the side near the dial (3). The pulley A (1) has a contact hole (7) and a belt groove. The dial (3) has an outwardly protruding manual actuation end (8), and the dial (3) has protruding driving ends (9) on both sides of its circular body. When the dial (3) slides toward the pulley A (1), the driving end (9) of the dial (3) slides into the contact hole (7), which can drive the pulley A (1) to rotate. When the dial (3) slides toward the pulley B (2), the driving end (9) of the dial (3) corresponds to the protruding end A (6) of the pulley B (2), which can drive the pulley B (2) to rotate.

2. The homokinetic rotary wheel according to claim 1, characterized in that: A keyway is provided on the outer side of the bushing (4) to facilitate the sliding of the dial (3).

3. The same-direction, opposite-direction conversion wheel according to claim 1, characterized in that: The dial (3) can slide on the bushing, thus achieving the purpose of one power driving two pulleys to rotate separately.

4. The homokinetic rotary wheel according to claim 1, characterized in that: The part where the outer surface of the bushing (4) and the inner surface of the dial (3) slide against each other is made into a regular hexagonal, regular quadrilateral or regular triangular shape.