self locking gearbox

Reliable, self-locking drive for ventilation and display installations
Ventilation and screening are two of the most crucial basic strategies that growers make use of each day to maintain the perfect climate and achieve maximum crop yields. It is critically very important to growers in order to open up, close and change air vents and climate screens at any moment and with a high 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 screen installations, Ever-Power introduced the EP engine gearbox – a compact and highly reliable self-locking drive that has been developed particularly for use in horticulture. The Ever-Power EP is now the standard with regards to drive technology for cup greenhouses, and has a well-earned reputation for reliability, long services life and versatility.
Because your drive units need to work every time you need them
The EP engine gearboxes have been created specifically to enable you to control the climate within your greenhouse with a high amount of precision. The EP’s smart and reliable style implies that it guarantees constant control of ventilation and display screen positions, regardless of the circumstances, load or greenhouse design.
Versatile
There is a wide variety of EP motors including many different versions with various speeds, torques, voltages and drive shafts. This means that different projects, applications and systems can be fitted with the same universal drive.
Reliable
The EP is developed, produced and tested entirely in-home. This means we are able to guarantee the standard of all our gearbox motors, that have a hard-earned popularity for reliability and lengthy service life.
Easy to install
RW motors are easy to install and use. Greenhouses builders and installers prefer to use our systems because they’re so simple to install and because of the potency of our drive systems and control units.
Precision growing
Ridder RW motors allow you to control the positioning of the vents and screen installations extremely precisely. This gives you high-precision control over crop creation, crop quality and energy usage in your greenhouse, enabling you to increase the viability of your operation.
Ever-Power provide a comprehensive range of gearboxes to complement their products.
Our oil bath worm and wormwheel gearboxes can be found in a range of sizes from No.1 to No.8 (100kg to 35 tonnes).
Gearbox options include:
Anti-tilt handwheel shaft assembly
Patented friction brake
Motorised (electric)
Motorised (pneumatic)
Naturally, spares are available from stock, delivered by possibly post, carrier, sea or airfreight.
We offer full repair and refurbishment services such as reload testing.
1. A self-locking non-backdrivable gear system, comprising: a. a primary motor insight adapted for rotation of a self-lubricating gearbox about the axis of a drive shaft; b. stated gearbox comprises: i. an input ring equipment mounted around stated driveshaft and positioned in meshing engagement with stated primary motor insight; ii. a band plate and seal configuration installed to said ring gear for sealing components within said ring equipment to allow the internal self-lubrication of said gearbox through a level of lubricant; iii. a planet locking equipment rotatably mounted within said ring gear, whereby said planet equipment rotates with said band equipment and also rotates about its installation axis; iv. an output spur gear rotatably mounted within stated ring gear in a radially inward, concentric relation to said ring gear and further includes an output shaft adapted for installation to said drive shaft, said output spur gear has N +/−X quantity of gear tooth in meshing engagement with stated planet gear; v. a fixed spur equipment fixedly mounted around stated output shaft and positioned adjacent to said output spur equipment, said fixed spur equipment has N amount of gear the teeth in meshing engagement with stated planet equipment; and vi. wherein said fixed and result spur gears have substantially similar diameters to allow said fixed and output spur gear the teeth to considerably align while engaging with stated planet equipment, vii. wherein said fixed and output spur gear teeth comprise a noise-dampening pressure angle configuration which angularly compliment stated planet gear the teeth, viii. whereby rotation of said primary motor insight causes rotation of stated ring gear which causes rotation of said planet gear which in turn causes rotation of stated result spur gear which causes rotation of stated drive shaft, and whereby in the absence of rotation of said band gear a rotational push put on said output spur equipment forces the considerably aligned said fixed and result gear the teeth to lock said world locking gear in place.
2. The gear system of claim 1 further comprising a second planet locking equipment rotatably mounted within said ring gear in 180° off-set relation with respect to the first world locking equipment, about the full 360° circumference of the ring gear, whereby said first and second world gears rotate with stated ring gear and also rotate about their own respective installation axes while engaging said fixed and output spur gear tooth, and whereby in the absence of rotation of the band gear a rotational force applied to said output spur gear will pressure said fixed and result spur gear the teeth to lock said initial and second world gears in place.
With reference to the use of the inventive gear system discussed herein, the machine provides a simple and low-cost self-lubricating gearbox that can be driven in a forward and reverse direction through an input engine shaft, but can’t be back-driven through its output gearing. By virtue of its configuration as a band gear, the invention can be effectively built-into any rotating machinery which utilizes a winch/drum. As such, these inventive gear systems have particular app in the field of overhead lifting machinery, although the invention is not 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 strain. These inventive gear systems may also be put on 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 compact assembly. The system’s hollow through the center result spur shaft can pass wiring through to a rotating connection, along with the simple insertion of downstream devices shafts. This might be particularly useful for cable drums winding electrified cable, and turntables with electrics/consumer electronics on board, for example.
The inventive gear program moreover addresses certain drawbacks 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 program lubrication of the machine gears.
To address such disadvantages, briefly described, the self-locking, non-backdrivable gear program of the present invention comprises a primary motor input and self-lubricating gear box. 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 gear is mounted around the driveshaft and positioned in meshing engagement with the primary motor input. The band plate and seal configuration are mounted to the ring equipment and seal the parts within the ring gear so as to allow the internal self-lubrication of the gearbox through a volume of lubricant.
One or more planet locking gears is rotatably mounted within the ring gear, whereby the earth gear rotates with the ring gear and in addition rotates about its own mounting axis. The result spur equipment is rotatably installed within the ring gear, in a radially inward, concentric regards to the ring gear, and additional includes an output shaft adapted for mounting to the drive shaft. The output spur gear has N+/−X number of gear teeth in meshing engagement with the planet gear. The fixed spur equipment is fixedly installed around the result shaft and positioned next to the result spur equipment. The fixed spur gear has N number of gear the teeth in meshing engagement with the earth gear the teeth. The fixed and output spur gears have substantially similar diameters to permit the fixed and result spur gear tooth to considerably align while engaging with the planet gear. The fixed and result spur gear tooth each comprise a noise-dampening pressure angle configuration to angularly compliment the earth gear teeth.
In operation, rotation of the principal motor input causes rotation of the ring gear which causes rotation of the earth gear which causes rotation of the output spur gear which causes rotation of the drive shaft. However, in the absence of rotation of the band gear, any rotational pressure put on the output spur gear (e.g., via the result shaft) will power the substantially aligned fixed and result gear tooth to lock the planet locking gear set up.
Various other aspects of the machine are provided herein. For instance, in an embodiment of the system having two world locking gears, the second planet locking gear may be rotatably installed within the ring gear in a 180° off-founded relation with respect to the first planet locking equipment, about the entire 360° circumference of the ring gear. The 1st and second planet gears rotate with the band gear and in addition rotate about their own respective installation axes while engaging the fixed and output spur gear teeth. In the absence of rotation of the ring gear, any rotational power applied to the output spur gear will pressure the fixed and output spur gear tooth to lock the initial and second planet gears in place.
The principal motor input can include a sprocket in meshing engagement with a timing belt. The primary motor input may otherwise include a sprocket in meshing engagement with a timing chain. The principal 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-band or shaft seal. The gearbox may further comprise a ball bearing band positioned on the output shaft to facilitate rotation of the output spur gear. The pressure self locking gearbox position configuration could be from about 45 degrees to about 25 degrees. The pressure position configuration may more ideally be from about 40 degrees to 30 degrees. The pressure angle configuration may most preferably be about 35 degrees. The components of the gearbox could be made from metal, plastic-type, composite, ceramic, wood, plywood, metallic powder, or combinations thereof.
Extra objects, advantages and novel features of the present invention will be established partly in the description which follows, and can in part become apparent to those in the practice of the invention, when regarded with the attached figures.
Standard Gear Units
Our Standard Gear Models are especially suitable for basic applications with normal requirements. They have been designed for make use of with three-stage motors. Their housings are machined on all sides which enable installation in any position desired. The apparatus units are lubricated forever by utilizing a synthetic long-term lubricant
The series Standard Gear Units includes the Standard Worm Gearbox, N-Worm Gear Unit-light version and the typical Bevel Gear Models in the heavy-duty and light version.
Standard Worm Gear Units
PDF Standard Worm Gear Units
EP Standard Worm Gear Units have been created for make use of with three-stage motors and servo motors. Due to the great number of attachment and threaded holes provided it could be directly installed in virtually any desired mounting position without any preparatory work being required. The essential gear with solid input shaft or with hollow input shaft could be mounted in 24 different designs, see unit mounting likelihood of Standard Worm Gear Units.
Technical Datas:
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
Self-locking property
of Worm Gear Units
Units Mounting Possibilities
of Standard Worm Gear
Operation and Maintenance
Instruction
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 systems are usually uneconomical when high performances and lengthy operating times are necessary. A worm gear unit is considered self-locking at standstill if, with worm wheel driving, starting from standstill is not possible. This is actually the case with ATLANTA wheel models and gear models when the lead position is <5°. A worm gear unit is considered self-locking from the working condition if the gear unit comes to a standstill whilst being backdriven. That is only possible with high equipment ratios and incredibly low speeds. Shocks and vibrations can neutralize the self-locking capacity! Therefore a self-locking tooth system cannot replace a brake or reverse-stroke fasten. In order to avoid overstressing of the worm equipment drive due to the high kinetic energy included, you should furthermore allow for a certain running-down period after stopping the input.
Standard Bevel Gear Units
PDF Standard Bevel Gear Units
Our Standard Bevel Gear Units are suitable 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 aluminium or cast iron casing, hardened and lapped bevel gears with spiral the teeth.
The light-duty version has a single-block housing made of aluminum and is machined on all sides. It si provided with sufficient mounting holes for installation in any placement preferred. The hardened and lapped spiral bevel gears guarantee good operation in both directions of rotation.
Technical Datas:
Heavy-duty and light version
5 ratios: 1; 1,5; 2; 3 and 5:1
Output torque: from 2,3 to 170 Nm

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