Nanpi County Jude Transmission Equipment Manufacturing Co., Ltd. |
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Introduction Of Snake Spring For Grid Coupling
The snake spring is also called the
coupler spring. It belongs to a special type spring. It is made of
a snake shaped steel strip with constant elasticity, and the
surface is all sprayed with rust prevention treatment. Serpentine
spring for the transfer of torque and buffer in the mechanical
drive system, it has been widely used in metallurgy, lifting,
transportation, mining, petroleum engineering, shipbuilding, coal,
rubber, shipbuilding and port machinery lifting equipment.
The snake spring has the following characteristics:
1. Allow for greater installation deviation
Due to the contact between the spring plate and
the tooth arc surface, the coupling can get large flexibility. It
can be installed at the same time with radial, angular, and axial
deviations.
2. Bearing large range of variable load and safe starting
The tooth surface and 2.5 leaf coupling contact
is curved, when the transfer torque increases, spring will arc
along the tooth deformation, the coupling effect in 2.5 on the
spring near the point. The change of the moment of contact between
the reed and the tooth surface, that is, changes with the size of
the torque, and its transmission characteristics are variable
stiffness. Therefore, it can bear greater load change than the
general elastic coupling.
The cushioning effect of the transmission force
on the reed when it is deformed along the tooth arc, especially
when the machine starts or has strong impact load, has a certain
degree of protection for the safety of the matching parts.
3. Good vibration damping and long service life
The coupling to serpentine spring axial
embedded in half more than 36%.
Serpentine spring trapezoidal section with high-quality spring
steel, heat treated strictly, and special processing, has good
mechanical properties, so that the service life of the coupling is
far better than the metal flexible coupling (such as elastic sleeve
pin, nylon pin coupling) for growth.
4. High transmission efficiency and reliable operation
The transmission efficiency of the coupling is
99.47%, and its short-time overloading capacity is two times of the
rated torque, and its operation is safe and reliable.
5. Simple structure and convenient assembly and dismantling
The whole machine has fewer parts, smaller
volume and lighter weight. The design of trapezoidal cross section
spring film is more convenient and close than that of trapezoidal
tooth groove, so that assembly and disassembly and maintenance are
simpler than general coupling.
Because some have the above characteristics,
serpentine spring is widely used in metallurgy, lifting,
transportation, mining, petroleum engineering, shipbuilding, coal,
rubber, shipbuilding and port machinery lifting equipment.
6. Low noise and good lubrication
The aluminum alloy housing is protected by
springs to avoid running outward, and the shell is filled with
butter. It not only makes lubrication well, but also eliminates the
noise of the reed mesh when it is absorbed by the butter.
The heat treatment process of the snake type spring:
1, the first quenching, tempering: the first
tempering and tempering of the snake type spring is to adjust the
structure of the steel plate. The ssert spring blank is 145.5mm x
14.5mm x 3mm plate. Each batch has 3% samples. The blank and sample
are loaded into the sling. It is heated in the salt bath furnace
and the oil is cold.
The tempering parts should be cleaned, skimmed, sandblasting, and
coated with protective coatings on the surface of the parts and
samples. The tempering temperature is 720 C 10 C, the heat
preservation is 60min, the air is cold, and the hardness is HRC26.
2, intermediate annealing: the serpentine
spring is first annealed for intermediate annealing. Before the
intermediate annealing, the protective coating should be applied
before coating. After annealing, the residual iron coating can be
removed by slight sand blasting, and then the final shape will be
formed.
3,the second quenching and tempering: the
purpose of second quenching and tempering of snake spring is to
shape the final performance of the parts. After the final forming,
the steel wire is bound up and heated and then cooled through the
fully deoxidized salt bath. Water cleaning with 60~80 degrees of
oil quenching, then 425 - 10 Deg. C tempering, tempering the
specimen surface abrasion test hardness more than 0.2mm should be
HRC49~51.
4, the last tempering: after testing the snake
spring hardness is qualified, the parts are processed by
sandblasting, and then pre treated. The pressure is measured to
55mm + 1mm at the actual measurement position, 30~40h is
maintained, and then the final tempering is carried out.
Nanpi county Jude transmission equipment manufacturing co., LTD. is a enterprises that specialized in research and production coupling. Also we can develop new products and bulk-production. With rich experience, professional R&D team and various equipment in coupling, it has superior conditions to satisfied your different requirements.
Company main products are: all kinds of couplings for machinery industry all over the word , such as radial elastic coupling, tyred coupling, universal coupling, drum gear coupling, plum flower form elastic coupling, rigid coupling oldham coupling, roller chain coupling, diaphragm coupling, coupling column elastic sleeve pin couplings, elastic dowel pin, elastic dowel pin coupling, pump shaft coupling, etc..
The concepts of our company is live on quality and develop on honor. The coupling has the advantage of high quality, low price, complete product models.Our company will be your best choice, and we look forward to cooperate with you.
Q1: Are you trading company or manufacturer ?
A: We are factory.
Q2:Do you provide samples ? is it free or extra ?
A: : Yes, we could offer the sample but not for free.Actually we have a very good price principle, when you make the bulk order then cost of sample will be return to you.
Q3: How long is your delivery time?
A: Generally it is 10-15 days if the goods are in stock. or it is 7-25 days if the goods are not in stock, it is according to quantity.
Q4: How long is your warranty?
A: Our Warranty is 12 month.
Q5 :Do you have inspection procedures for coupling ?
A:100% self-inspection before packing
Q6. What’s your payment?
A:1) 100% T/T. 2) 30% in advance, others before shipment. 3) L/C Q7:Can I have a visit to your factory before the order? A: Sure,welcome to visit our factory.