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YOTch Fully Sliding Bearing Supported Type

Product classification：

YOTC speed regulating type hydraulic coupling

keyword：

YOTC speed regulating type hydraulic coupling

regulation

hydraulic

speed-regulating

motor

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Product Details

Introduction to Speed-Regulating Hydraulic Couplings

1. The working principle of speed-regulating hydraulic couplings
Our company has developed and manufactured the YOTc speed-regulating hydraulic coupling, which is an export-type speed-regulating hydraulic coupling. Its structure primarily consists of five main components:
①. Rotating Components: Primarily include the driving components (pump impeller, housing, input shaft) and the driven components (turbine, output shaft).
②. Fuel Inlet and Drain System
③. Fuel tank
④. Cooling System
5. Instruments and Control Systems
The working cavity of the YOTc series speed-regulating hydraulic couplings is filled with a specific amount of working fluid (typically No. 32 turbine oil). The rotating component, which serves as the driving element, is connected to the electric motor. The pump impeller receives mechanical energy from the motor and, through its blades, induces both relative and convective motion in the working fluid, thereby converting it into liquid energy. This energy then drives the turbine to rotate, transmitting the liquid energy via the output shaft to the driven machine. In this way, the system effectively converts liquid energy into mechanical energy, enabling efficient power transmission from the prime mover to the working machine.
The speed-regulating coupling enables stepless speed control of the driven machine by adjusting the opening size of the oil discharge system's guide tubes, thereby altering the amount of fluid filling the working chamber. Under constant motor speed conditions, this mechanism achieves continuous speed variation of the driven machine, ultimately modifying the magnitude of the output power. During the speed regulation process, a slip difference occurs (with the maximum relative efficiency loss occurring at a transmission ratio of i = 0.66, where efficiency drops to η = 97%). Additionally, the working fluid generates heat during operation, necessitating the installation of a cooler to maintain optimal fluid temperature. After cooling, the fluid is returned to the working chamber via the oil supply system. The coupling can be controlled automatically—either manually on-site or remotely—through various instrumentation devices such as electric actuators, servo amplifiers, automatic speed-measuring units, speed sensors, and pressure sensors.

2. Advantages of Speed-Regulating Hydraulic Couplings
◆ To enhance the starting capability of squirrel-cage induction motors, the motor's peak torque can be utilized as the starting torque, thereby avoiding the inefficient mismatch phenomenon of "using a large motor for a small load."
◆ Prevent power overload and protect the motor and working machinery from damage caused by excessive load.
◆ Reduce vibration and impact during the startup process.
◆ In multi-machine drive systems, power balancing and sequential starting can be achieved, reducing the inrush current on the power grid.
◆ The startup time of the working machine can be fully adjusted according to the operational requirements of the equipment.
◆ The working machine features stepless speed regulation, delivering remarkably significant energy-saving effects with a power reduction rate of 20% to 40%.
◆ The work machine supports remote control and automated operation, making it highly convenient to use.
◆ Simple in structure and highly reliable, it offers a lower price compared to variable-frequency speed control and CST speed regulators, resulting in reduced operating costs. Additionally, it features no mechanical wear and can operate effectively under harsh environmental conditions, requiring minimal maintenance and delivering an exceptionally long service life.

3. Scope of Application
In equipment operating within the mechanical industry, some are equipped with speed control systems designed for energy conservation, while others incorporate such systems due to specific process requirements. Therefore, speed-controlled couplings have an extremely wide range of applications.
◆ Pump Types: Boiler feed pumps, ash and slag pumps, transfer pumps, condensate pumps, water supply pumps, and more.
◆ Fan types: blowers, induced draft fans, Roots blowers, and more.
◆ Others: Crushers, centrifuges, sewage treatment odor eliminators, belt conveyors, grab dredgers for sand excavation, sintering mixers, and more.

4. Power Transmission Characteristic Diagram of YOTc Series Speed-Regulating Hydraulic Couplings

5. Original characteristic curve λB—f(i) of the YOTc series speed-regulating hydraulic couplings and their combined operating curves when matched with various working machines

Customer Notice: Items related to accessories and instruments that must be confirmed when the customer places an order.

Note:

1. The items marked with ● above must be provided and confirmed by the customer at the time of contract signing.
2. The direction of rotation is determined by observing the rotational direction of the coupling input end from the rear end of the motor.
3. If the user has no specific requirements, the electric actuator will be installed on the right side of the coupling output end (when standing behind the motor and looking toward the coupling).

6. Supporting Components Supply Project

Main foundry business scope and capacity:

To cast 104-based aluminum alloy parts, HT150-250 cast iron parts, 45# steel-based various types of carbon steel castings. The production capacity of aluminum castings is 100 tons/month, and the production capacity of cast iron and steel parts is 100 tons/month. The company can provide customers with one-stop service of rough casting and processing. Mass production using die casting, small batch parts using sand casting.

Among them, cast steel (alloy steel) is the optimization and reorganization of the company's casting division and the original branch (Yunan Zhongxing Wear-resistant Materials Co., Ltd.) in 2023, fully combining the advantages of both parties, that is, the combination of technological innovation and mature management, aiming at common customer terminals, reducing marketing costs, and also allowing customers to obtain the convenience of one-stop after-sales service. The main products are related to electric power, mining, cement, ports, waterway dredging metal wear-resistant parts, product materials are metal matrix ceramic composite materials, high chromium, high manganese, alloy steel and so on.

YOTcp1250 Central Split-Type Design

YOTCF Split-Type / YOTCL Vertical Type