To maintain the delicate environment inside a greenhouse, climate control systems are a necessity. Numerous mechanical systems can be applied to aaddress this; however, glass vent drive systems tend to be the most popular. With decades of experience in greenhouse applications, Bison Gear and Engineering continually strives to improve on past designs and stay current with the latest technology, and has been providing solutions for this type of application for 20 years.
Regulating Window Motion
When a company requested help with a greenhouse system, Bison came up with a solution that allows the greenhouse to regulate the opening and closing of its windows. The drive system consists of a central gearmotor connected to a 40:1 right angle reducer with dual output shafts. These OP shafts connect to long jack shafts that spread across the roof line of the greenhouse, connecting to multiple rack and pinion mechanisms that open and close large glass window panes in the ceiling for temperature control.
Depending on the size of the application (length of the shafting, quantity and weight of the window panes), Bison offers two gearmotor solutions from a modified version of its 200 series parallel shaft line – 1/5 hp and 1/20 hp. The application is generally intermittent in use; however, the motors are rated continuous since the glass pane windows could potentially be under constant, subtle adjustment throughout the day.
Bison's gearmotor was able to fulfill the criteria without any issues. After implementing the system, the company was very happy with the results, and continues to use Bison gearmotors.
