Reliable, self-locking drive for ventilation and display screen installations
Ventilation and screening are two of the most important fundamental strategies that growers make use of each day to maintain the perfect climate and achieve maximum crop yields. It is critically important for growers in order to open, close and adjust air vents and weather screens at at any time and with a higher degree of accuracy. Growers rely on these systems to work as they should, and rely on the drive systems that control their displays and air vents.
In order to guarantee the dependability of ventilation and display installations, Ever-Power introduced the EP electric motor gearbox – a compact and highly reliable self-locking drive that is developed particularly for use in horticulture. The Ever-Power EP is now the standard with regards to drive technology for glass greenhouses, and has a well-earned status for reliability, long program life and versatility.
Because your drive units need to work every period you need them
The EP electric motor gearboxes have been created specifically to allow you to control the climate within your greenhouse with a high amount of precision. The EP’s smart and reliable design implies that it guarantees constant control of ventilation and display screen positions, whatever the circumstances, load or greenhouse style.
There is a wide selection of EP motors including many different versions with various speeds, torques, voltages and drive shafts. This means that different projects, applications and systems could be installed with the same universal drive.
The EP is developed, produced and tested completely in-house. This means we can guarantee the quality of all our gearbox motors, that have a hard-earned popularity for reliability and lengthy service life.
Easy to install
RW motors are simple to install and use. Greenhouses builders and installers like to work with our systems because they’re so easy to install and due to the potency of our drive products and control units.
Ridder RW motors enable you to control the position of the vents and display installations extremely precisely. Thus giving you high-precision control over crop production, crop quality and energy usage in your greenhouse, helping you to increase the viability of your procedure.
Ever-Power offer a comprehensive selection of gearboxes to complement their products.
Our oil bath worm and wormwheel gearboxes are available in a variety of sizes from No.1 to No.8 (100kg to 35 tonnes).
Gearbox options include:
Anti-tilt handwheel shaft assembly
Patented friction brake
Naturally, spares can be found from stock, delivered simply by possibly post, carrier, sea or airfreight.
We offer full restoration and refurbishment services such as reload testing.
1. A self-locking non-backdrivable gear program, comprising: a. a major motor input adapted for rotation of a self-lubricating gearbox about the axis of a drive shaft; b. said gearbox comprises: i. an insight ring gear mounted around said driveshaft and situated in meshing engagement with said primary motor insight; ii. a ring plate and seal configuration installed to said ring equipment for sealing parts within said ring equipment to allow the internal self-lubrication of stated gearbox through a level of lubricant; iii. a planet locking equipment rotatably mounted within said ring gear, whereby said planet gear rotates with said ring equipment and in addition rotates about its own mounting axis; iv. an output spur gear rotatably mounted within stated ring gear in a radially inward, concentric relation to said ring gear and additional includes an output shaft adapted for mounting to stated drive shaft, said output spur equipment has N +/−X amount of gear the teeth in meshing engagement with stated planet gear; v. a set spur equipment fixedly mounted around stated result shaft and positioned adjacent to said result spur gear, said fixed spur equipment has N amount of gear the teeth in meshing engagement with stated planet gear; and vi. wherein stated fixed and output spur gears have substantially similar diameters to allow said fixed and result spur gear teeth to substantially align while engaging with stated planet gear, vii. wherein said fixed and result spur gear the teeth comprise a noise-dampening pressure position configuration which angularly compliment said planet gear the teeth, viii. whereby rotation of said primary motor insight causes rotation of stated ring gear which in turn causes rotation of stated planet gear which in turn causes rotation of stated output spur gear which in turn causes rotation of stated drive shaft, and whereby in the lack of rotation of said ring gear a rotational push put on said output spur gear forces the considerably aligned said fixed and result gear the teeth to lock said planet locking gear in place.
2. The gear system of claim 1 further comprising another planet locking equipment rotatably mounted within stated ring gear in 180° off-arranged relation with regards to the first planet locking equipment, about the entire 360° circumference of the ring gear, whereby said first and second planet gears rotate with said ring gear and also rotate about their own respective installation axes while engaging stated fixed and result spur gear tooth, and whereby in the lack of rotation of the band gear a rotational force applied to said output spur gear will force said fixed and result spur gear the teeth to lock said initial and second planet gears in place.
With reference to the application of the inventive gear system discussed herein, the system offers a simple and low-cost self-lubricating gearbox that can be driven in a forward and reverse direction through an input engine shaft, but cannot be back-driven through its output gearing. By virtue of its configuration as a ring gear, the self locking gearbox invention can be effectively built-into any rotating machinery which utilizes a winch/drum. As such, these inventive equipment systems have particular program in the field of overhead lifting machinery, although the invention isn’t so limited. For example, winch machinery that utilizes a cable winding onto a cylindrical or pile-up drum should be able to wind in both a clockwise and counterclockwise direction, however, not drop the load. These inventive gear systems may also be applied to move scenery, create effects, and manipulate overhead light and machinery during theatrical performances.
In the case of machinery that uses chain or screw jack components, a non-back driving, self-locking gearbox would offer benefits more advanced than existing configurations produced up of friction brakes and worm drive gearboxes. The built-in advantages of a planetary type gear train further allow for a concise assembly. The system’s hollow through the guts result spur shaft can pass wiring through to a rotating connection, along with the basic insertion of downstream gear shafts. This might be especially useful for cable drums winding electrified cable, and turntables with electrics/electronic devices up to speed, for example.
The inventive gear system moreover addresses certain disadvantages of similar existing equipment systems, e.g., vibration and noise conditions that are unacceptable using settings (such as during theatrical performances) and burdensome maintenance through the routine lubrication of the system gears.
To address such disadvantages, briefly described, the self-locking, non-backdrivable gear system of the present invention comprises a main motor insight and self-lubricating gear package. The primary motor input is certainly adapted for rotation of the gearbox about the axis of a drive shaft. The gearbox comprises an input ring gear, ring plate and seal configuration, planet locking equipment, fixed spur gear, and output spur gear. The input ring equipment is mounted around the driveshaft and positioned in meshing engagement with the principal motor input. The band plate and seal configuration are mounted to the ring equipment and seal the components within the ring gear so as to permit the inner self-lubrication of the gearbox through a volume of lubricant.
One or more world locking gears is rotatably mounted within the band gear, whereby the earth equipment rotates with the ring gear and in addition rotates about its own mounting axis. The result spur gear is rotatably installed within the ring gear, in a radially inward, concentric regards to the ring equipment, and additional includes an result shaft adapted for installation to the drive shaft. The output spur gear has N+/−X quantity of gear the teeth in meshing engagement with the earth equipment. The fixed spur gear is fixedly mounted around the output shaft and positioned next to the result spur equipment. The fixed spur equipment has N number of gear teeth in meshing engagement with the planet gear tooth. The fixed and result spur gears have considerably similar diameters to permit the fixed and result spur gear tooth to substantially align while engaging with the earth equipment. The fixed and output spur gear tooth each comprise a noise-dampening pressure position configuration to angularly compliment the earth gear teeth.
Functioning, rotation of the primary electric motor input causes rotation of the ring gear which causes rotation of the planet gear which in turn causes rotation of the output spur gear which causes rotation of the drive shaft. Nevertheless, in the lack of rotation of the band gear, any rotational power put on the output spur equipment (electronic.g., via the output shaft) will pressure the considerably aligned fixed and output gear teeth to lock the earth locking gear in place.
Various other aspects of the system are provided herein. For instance, within an embodiment of the machine having two world locking gears, the second planet locking gear could be rotatably installed within the ring gear in a 180° off-set relation with respect to the first planet locking gear, about the full 360° circumference of the ring gear. The initial and second world gears rotate with the ring gear and also rotate about their personal respective installation axes while engaging the fixed and output spur gear teeth. In the lack of rotation of the ring gear, any rotational push put on the output spur gear will drive the fixed and result spur gear the teeth to lock the initial and second world gears in place.
The principal motor input can include a sprocket in meshing engagement with a timing belt. The principal motor input may otherwise add a sprocket in meshing engagement with a timing chain. The primary motor input may or else add a sprocket in meshing engagement with a plurality of timing gears.
Each seal of the band plate and seal configuration could be an O-ring or shaft seal. The gearbox may additional comprise a ball bearing ring positioned on the output shaft to facilitate rotation of the output spur equipment. The pressure angle configuration may be from about 45 degrees to about 25 degrees. The pressure position configuration may more preferably be from about 40 degrees to 30 degrees. The pressure angle configuration may most ideally end up being about 35 degrees. The elements of the gearbox may be made from metal, plastic-type material, composite, ceramic, wood, plywood, metallic powder, or combinations thereof.
Extra objects, advantages and novel top features of today’s invention will be established partly in the description which follows, and will in part become obvious to those in the practice of the invention, when regarded with the attached figures.
Standard Gear Units
Our Standard Gear Systems are especially suitable for simple applications with normal requirements. They have already been designed for make use of with three-phase motors. Their housings are machined on all sides which enable installation in any position desired. The apparatus units are lubricated forever by using a synthetic long-term lubricant
The series Standard Gear Units includes the Standard Worm Gearbox, N-Worm Equipment Unit-light version and the typical Bevel Gear Products in the heavy-duty and light version.
Standard Worm Gear Units
PDF Standard Worm Gear Units
EP Standard Worm Equipment Units have been made for use with three-stage motors and servo motors. Because of the great number of attachment and threaded holes provided it can be directly installed in any desired mounting position without any preparatory work being required. The essential gear with solid insight shaft or with hollow insight shaft could be mounted in 24 different designs, see device mounting likelihood of Standard Worm Gear Units.
6 sizes: 40, 50, 63, 80, 100 and 125
10 ratios: 6,75; 9; 12; 14; 19; 29; 39; 52; 62 und 82:1
Output torque: from 19 to 1100 Nm
ATEX design available
of Worm Gear Units
Units Mounting Possibilities
of Standard Worm Gear
Operation and Maintenance
Self-locking property of Worm Gear Units
A precondition for the self-locking quality of gear units is a small tooth lead angle of the worm and therefore an efficiency of η ≤ 0,5 with worm generating. Consequently self-locking gear products are generally uneconomical when high performances and long operating times are required. A worm equipment unit is considered self-locking at standstill if, with worm wheel driving, starting from standstill is extremely hard. This is the case with ATLANTA wheel units and gear units when the lead position is usually <5°. A worm gear unit is known as self-locking from the working condition if the gear unit involves a standstill whilst being backdriven. That is only possible with high equipment ratios and very low speeds. Shocks and vibrations can neutralize the self-locking capacity! Therefore a self-locking tooth system cannot replace a brake or reverse-stroke locking mechanism. In order to avoid overstressing of the worm equipment drive due to the high kinetic energy included, you should furthermore enable a certain running-down period after stopping the input.
Standard Bevel Gear Units
PDF Standard Bevel Gear Units
Our Standard Bevel Equipment Units are ideal for all sorts of applications for rotating and positioning and can be used in every situation and orientation.
The heavy-duty version with three transmission shafts has centering diameters for precise alignment. This version includes a robust light weight aluminum or cast iron housing, hardened and lapped bevel gears with spiral the teeth.
The light-duty version includes a single-block housing manufactured from aluminum and is machined on all sides. It si given adequate mounting holes for set up in any placement preferred. The hardened and lapped spiral bevel gears guarantee good operation in both directions of rotation.
Heavy-duty and light version
5 ratios: 1; 1,5; 2; 3 and 5:1
Output torque: from 2,3 to 170 Nm
Reliable, self-locking drive for ventilation and display screen installations