The H-series right angle gearbox for vertical turbine pumps is a 90 ° steering power transmission device specially designed for vertical pump equipment. Its core advantage is to achieve efficient vertical output of horizontal prime mover power and can directly withstand large axial thrust. The H-series right angle gearbox for vertical turbine pumps is the core transmission supporting component for vertical long shaft submersible turbine pumps, deep well turbine pumps, fire turbine pumps and other vertical pumps equipment.
🔧  Core structural characteristics
90 ° right angle power steering: By using internal spiral bevel gears or helical gear structures, the horizontal rotational power of horizontal motors, diesel engines, and steam turbines is efficiently converted into vertical rotational power of vertical pump shafts, perfectly adapting to the working requirements of horizontal prime movers driving vertical pumps.
Large axial thrust bearing design: Equipped with a dedicated high-strength thrust bearing system, it can directly withstand the huge axial force generated during pump operation (such as underwater gravity and fluid reaction force of deep well pumps), avoiding direct transmission of load to the motor and greatly simplifying the shaft structure of vertical pumps.
High rigidity box design: Made of gray cast iron or high-strength welded structure, the box is sturdy and has excellent sound absorption and shock absorption performance. Combined with a large surface area heat dissipation design, it effectively reduces operating temperature rise and noise.
High protection sealing system: equipped with radial shaft seals with dust shields, using a dual lip skeleton oil seal and dust cover multiple sealing structure, with a protection level of up to IP54/IP55, effectively preventing water droplets and dust from entering the interior of the box and extending the service life of lubricating oil.
Modular combination design: supports multiple installation methods (base type, torsion arm type), input and output connection forms (flange, key connection, expansion sleeve), can adapt to different brands of motors and pump bodies, and has strong flexibility in system integration.
High wear resistant gear technology: The gear is made of high-quality alloy steel 20CrMnTi through carburizing and quenching+grinding process. The tooth surface hardness can reach HRC58-62, the contact strength is increased by 20% -30%, and it can withstand 1.5-2 times short-term overload, perfectly adapting to impact load conditions.
📊  Typical performance parameters
parameter item
Industry wide scope
Input speed of 245~3460rpm, conventional compatible with 1450r/min standard quadrupole motor
Output speed 490~3460rpm
Transmission ratio range: Down ratio 4:1~11:10, Speed ratio 1:1~1:2
The maximum input power ranges from 0 to 1520HP (approximately 0 to 1138kW), covering all scenarios from small and medium power to large industrial pumps
Maximum axial thrust 125000N
Transmission efficiency of 95%~98%, smooth meshing with minimal vibration
Suitable for medium temperature: Conventional models range from -20~80 ℃, while customized models can cover temperatures up to -10~120 ℃
The transmission series supports single stage, second stage, third stage, and fourth stage. The more series, the greater the reduction ratio, making it suitable for low-speed and high torque scenarios
Output shaft forms include solid shaft, hollow shaft, and hollow shaft with locking disc. The hollow shaft can be directly fitted onto the pump shaft for a more compact installation
🏭  Main application scenarios
Vertical long shaft submersible pump transmission: used in deep wells, sewage treatment, chemical storage tanks and other scenarios. The horizontal motor is arranged on the ground, and the pump body is vertically installed underground or in the pool, greatly improving electrical safety and adapting to various deep water level water intake scenarios.
Axial flow pump/diagonal flow pump system: In large-scale drainage pump stations and circulating water systems of thermal power plants, high flow and low head conveying are achieved. By adjusting the transmission ratio to match the optimal operating speed of the pump, the system's operating efficiency is greatly improved.
Vertical long axis fire pump set: matched with diesel engine or horizontal motor, providing high torque output, meeting the requirements of emergency start-up and high reliability in fire scenarios, compact design for quick deployment, and suitable for the fire protection needs of high-rise buildings or underground spaces.
Irrigation and Water Conservancy Engineering in Farmland: Drive high flow vertical long shaft pumps to convert diesel engine power into vertical output, achieving large-scale farmland irrigation and cross regional water transfer, economically efficient and space saving, significantly reducing system infrastructure costs.
Municipal and industrial water supply: In deep well pumps for urban water supply and high head drainage systems for metallurgical mines, multi-stage transmission is used to match motor speed and pump head, ensuring stable water supply, high reliability, significantly reducing maintenance frequency, and ensuring continuous production water safety.
✨  Core operational advantages
Flexible spatial layout: The motor can be horizontally arranged on the ground platform, and the pump body can be vertically installed underground or in the pool, greatly saving the floor space of the pump room. Daily inspection and maintenance do not require going underground, making operation convenient and safe.
Strong compatibility: Supports connection with various prime movers such as IEC standard horizontal motors and diesel engines through elastic couplings, with large installation tolerance to effectively reduce vibration transmission and adapt to various mainstream industrial pump brands.
Stable operation and long service life: The high-precision gear grinding process ensures smooth gear meshing, low noise, and minimal vibration. The mean time between failures (MTBF) can exceed 20000 hours, and stable performance can be maintained even after 24 hours of continuous operation.
Strong adaptability to complex working conditions: The high protection level design is suitable for harsh environments such as outdoor, humid, and dusty environments. Low temperature or high temperature special lubricants can be selected according to the working conditions to meet long-term stable operation under extreme weather conditions.
Easy maintenance: The lubrication system is independent, equipped with an oil level window and oil change hole. Large heavy-duty models can upgrade the thin oil circulation lubrication system for remote monitoring and maintenance. The oil can be changed after the first 300 hours of operation, and the lubricating oil can be changed every 5000 hours or every year thereafter.
Key installation taboos: When installing horizontally, it is necessary to ensure that the coaxiality between the gearbox, prime mover, and water pump is ≤ 0.1mm to avoid excessive vibration; Vertical installation requires a dedicated oil guide groove to ensure even distribution of lubricating oil and prevent local bearing dry wear failure; H60 and above large-sized models must be equipped with a cooler, which cools the lubricating oil through circulating water to prevent high temperature from causing wear and failure of the tooth surface.