Joined V-Belt Ribbed Tie Band for Stable Double-Sided Transmission
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Solution Overview
Problem
Existing joined V-belts cannot transmit power through the outer peripheral surface, and hexagonal belts with high manufacturing difficulty are not practical for connecting multiple hexagonal belts in a width direction, leading to a demand for a joined V-belt that is productive and capable of double-sided transmission.
Innovation Solution
A joined V-belt is developed using a tie band with a short fiber-containing rubber layer oriented in the belt width direction, featuring rib portions extending in the belt longitudinal direction, which connects multiple wrapped V-belt portions for efficient double-sided transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If multiple V-belts are wound around pulleys in parallel to transmit large power, then power transmission capacity is improved, but tension differences and unstable power transmission occur
Solution Approach 1:
Multiple separate V-belts are merged into a single joined V-belt by bonding them together with tie bands. This integration ensures that all belt portions move as one unified structure, eliminating relative motion and tension differences between individual belts, thereby achieving stable power transmission while maintaining high power transmission capacity.
2Power
If multiple V-belts are used in parallel for high-load operation, then power transmission capability is improved, but inner peripheral and outer peripheral sides may reverse forming reverse structure
Solution Approach 1:
Multiple V-belt portions are merged into a single joined V-belt structure with fixed relative positions. The tie bands bond the belt portions together, preventing any reversal or instability of the inner and outer peripheral sides, thereby maintaining stable belt structure composition during high-load operation.
Solution Approach 2:
The tie bands are pre-installed to bond multiple V-belt portions together before the joined V-belt is put into service. This preliminary bonding action ensures that the correct orientation and relative positions of inner and outer peripheral sides are fixed in advance, preventing any reversal during operation.
3Reliability
If joined V-belt is used to connect multiple belt portions, then stable power transmission is improved, but outer peripheral surface cannot transmit power
Solution Approach 1:
The joined V-belt is designed with dual functionality: the inner peripheral surface with V-shaped grooves transmits power in one direction, while the outer peripheral surface with flat surfaces transmits power in the opposite direction. This multi-functional design enables the single belt to handle bidirectional power transmission requirements.
Solution Approach 2:
The belt portions are arranged asymmetrically within the joined V-belt structure, with specific orientations of V-shaped grooves and flat surfaces. This asymmetric arrangement allows the inner peripheral surface to engage with V-grooved pulleys for one direction of power transmission, while the outer peripheral surface engages with flat pulleys for the opposite direction.
4Adaptability or versatility
If hexagonal belt is used for double-sided transmission, then transmission performance is improved, but manufacturing difficulty increases
Solution Approach 1:
The complex hexagonal belt structure is segmented into multiple simpler V-belt portions that can be manufactured using conventional processes. These portions are then joined together using tie bands to create the final joined V-belt with double-sided transmission capability, significantly simplifying the manufacturing process.
Solution Approach 2:
Tie bands serve as intermediary bonding elements that connect multiple standard V-belt portions to form the joined V-belt. This intermediary approach allows the use of conventional V-belt manufacturing techniques while achieving the complex double-sided transmission function, avoiding the need for difficult hexagonal belt manufacturing.
Data Source
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AI summary
The present invention relates to a joined V-belt comprising a plurality of wrapped V-belt portions and a tie band. The outer peripheral surfaces of the wrapped V-belt portions are coupled by the tie band. The wrapped V-belt portions each include a belt body and an outer fabric cover covering the outer surface of the belt body. The belt body includes a core body layer, an extension rubber layer, and a compression rubber layer. The tie band includes a short fiber-containing rubber layer, and the short fiber-containing rubber layer has a plurality of rib portions.