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worm gearbox:DGAB series torque from four hundred-48000N.m,
D sequence torque from 2000-180000 N.m
item design principles
Dagong shall at least adopt the shell made of ductile iron, which can bear the extreme load in the earthquake spot, with IP67 sealing grade, and the exposed parts shall be corrosion-resistant or the surface shall be protected with gray epoxy resin. Available in carbon steel, stainless steel, corrosion-resistant alloy and high and low temperature
environment materials, including deep sea worm gear.
wear-resistant nodular cast iron worm gear is matched with alloy steel worm equipment, manufactured with improved
process data after multiple process evaluation,
and equipped with substantial-grade grease or lubricating oil which makes the worm gear wear- resistant continuously, prolongs the service life of the product future improves the switching torque characteristic and transmission efficiency applicable to the valve, and reduces the input torque. The large reduction ratio makes each pair of worm gears suitable for the self-locking capacity required by the valve to control the valve. Bronze worm gear and alloy steel worm gear are available.
three.mechanical limit and seal:
The travel limit screw with an angle of -90°( ±5°)can be modified to meet up with the specifications of the valve switch.the modifying screw seal is recognized by the invention patent of the university of the engineering,which can ensure numerous environmental seals ,these kinds of as substantial temperature ,minimal temperature,deep sea,large and minimal force,consistent strain and strong corrosion setting.in the higher security level,the protection cap can be utilized to attain double sealing.
the style of the equipment strives to make the root pressure of the two wheels equivalent,to fulfill the instantaneous torque attributes when the valve is opened and shut,and to prolong the dress in period of the pinion.the primary reduction gear utilizes the large module cylindrical gear,and the planetary gear is utilised to minimize the huge specification and high torque to achieve the needed enter torque.they can be utilised for handwheel procedure,sprocket operation and electric drive gearbox.the gearbox layout have a specific space to meet the simultaneous deciphering time of the electrical installation when picking distinct transmission ratios.
The design and style normal of the output flange related with the valve shall be in accordance with ISO 5211.every specification offers multiple flange choices to satisfy the connection specifications of the valve.
six.output shaft gap:
According to ISO 5211 regular ,the output drive hole can be immediately tailored in distinct measurements without additional machining to meet the assembly demands of the valve stem.Give various relationship approaches,these kinds of as multi essential connection,diagonal sq. head,parallel sq. head,flat head,spline link,and so forth.
7.enter shaft for handwheel operation:
for the input shaft of the gearbox operated by the hand wheel ,anti-corrosion security treatment shall be carried out or the stainless steel substance shall be utilised immediately .the lock device and 2-inch handwheel block driving components can be specified .In accordance to the valve torque,the wheel specification can be selected,so as to fulfill the requirements that the functioning drive of the driving valve is not greater than that specified by the valve.
eight.all goods are geared up with loc ept device:
It can be locked at any time when the website demands to meet up with the specifications of the wor ept situations
Be aware:we are fully commited to steady improvement of our products and manufacturing procedures.Samples are matter to adjust without having prior observe.
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The use of unique tools manufacturer’s (OEM) part figures or trademarks , e.g. CASE® and John Deere® are for reference reasons only and for indicating merchandise use and compatibility. Our firm and the listed replacement elements contained herein are not sponsored, approved, or produced by the OEM.