Business

News release：2013-08-23

Dalian limit torque couplings Manufacturing Co., Ltd., is specialized in constant filling, variable speed fluid coupling manufacturers, is the development, production, sales and maintenance of an integrated enterprise, the company main products are hydraulic couplings, variable speed fluid couplings, brake wheel hydraulic coupling, pulley-type fluid coupling, friction type coupling and coupling various accessories and hardware accessories. To meet customer needs, we also undertake other coupling manufacturing and various couplings repair.


Our company has developed various types of couplings years of professional history and experience, with research and development of high-tech production of refined products and favorable conditions and strong advantages, to meet the various needs of users. In the digestion and absorption of the German VOITH technology, based on the company, has formed a multi-standard, multi-series products are widely used in steel, power, coal, cement, petroleum, chemical, mining, metallurgy, municipal, food, transportation, construction , textile and other industries. The production of a variety of products by the State Economic and Trade Commission as National Key New Product, while the companys products are Shenyang City Quality Management Association as Customer Satisfaction. Corporate credit rating itself is Dalian Municipal Committee rated AAA Grade Enterprise and heavy contract, keep promise unit.


The company has passed the ISO9001: 2000 international quality system certification, the company achieved a CAD computer-aided design and information management, set research and manufacturing as a whole, there is a wealth of manufacturing experience and strong technical force, the detection means perfect, complete specifications, stable and reliable quality. Since its inception, product sales throughout the country, new and old customers the Green Mi, the spirit of good faith, with a number of customers to establish long-term cooperative relationship, and now my company is to further strengthen staff training to improve the technical level, the high-tech injection products, for products with better quality, more affordable.
Our tenet is science and technology development, quality of survival, customer benefits, and strive to advanced production management and strict quality requirements to provide users with high-quality products and satisfactory service.
Welcome customers to visit our company and negotiate business!
Constant filling fluid coupling is a type hydraulic power transmission components, due to its high efficiency, simple structure and can drive the load smooth start to reduce the impact of the grid current, improved boot performance, improved starting ability; role with overload protection , can isolate torsional vibration and shock, in more than one motor drive train load balancing motors; therefore mining machinery, chemical industry, metallurgical industry, construction, transportation and other sectors has been widely used.
Constant filling fluid coupling models: YOX, YOX Ⅱ, TVA, YOXSQ, YOXS, YOXS Ⅱ, TVAS, YOXE, TVAE, YOXEZL, ZYOXE, ZTVAE, ZYOXEZ, ZTVAEZ, YOXZL, YOX Ⅱ Z, TVAZL, YOX Ⅱ Z *** A, YOXY, YOXYZ, YOXYEZ, YOXYS, YOXYSZ *** A, YOXYSZ, YOXL, TVAL, YOXB, YOXF, YOXD, YOXFZ so on.
Structural features:
YOX, YOX Ⅱ type are mainly active part and passive components. After the main part includes auxiliary chamber, the first half couplings, the latter half of the connecting shaft, elastic block, pump impellers and housings. The driven shaft and the turbine section includes. Connection with the main part of the prime mover, the passive part of the work machine connection.
TVA-type basic structure and YOX, YOX Ⅱ type the same, but TVA is the introduction of the German-based products, and YOX, YOX Ⅱ is the localization of products.
Working principle: the torque of the prime mover coupling in the work by the fluid transfer, the prime mover drives the pump wheel of the mechanical energy into the original motivation for the function of the working fluid, the working end impact turbine, then the kinetic energy of the working fluid into mechanical energy. Move through the output load. No mechanical pump and turbine wheel contact.
Constant filling fluid coupling can be fitted with temperature alarm safety supervision, and when the temperature reaches the critical need to protect the value, the immediate sound and flash alarm, and cut off the power, to achieve security, user, if required, must be in the product when ordering proposed.
Installation and removal:
1, the installation
(A) between the motor and the working machine to allow sufficient space for mounting coupling position
(2) respectively, into the key shaft of the motor and the working machine and the keyway in the shaft lubricated
(3) to the shaft by means of coupling with the corresponding threaded holes tools calmly coupling the input shaft and the motor shaft coupling
(4) the motor and coupling half coupling shaft coupling, ensuring axial clearance is 2 ~ 4mm
(5) working machine motor shaft and shaft concentricity, radial error ≤ 0.3mm, angular error of ≥ 40 , can be used to adjust shims or elastic plate
(6) After installation is complete, the motor and the working machine foot bolts tightened should also check with Square concentric motor and the working machine error is within tolerance. Concentricity error can be bullet coupling half maximum diameter of the lower side, too. If you require precise, can dial gauge measurements. Such as tolerance, and must be adjusted to the tolerance range.
(7) on the working machine speed shaft taper 1:10, installation, use with couplings equipped with special seals, bitter small fixing nut to prevent oil spills.
 Note: When installing, does not allow plate, hammer beating and will not allow hot charging to avoid damage to components and seals. TVA type can be threaded through holes in the coupling with the work and the input shaft into the stable area. YOX, YOX Ⅱ type may also be involved in this method, after the auxiliary chamber, plugs, O-rings apart and apply the appropriate tool to install.
2, demolition
(1) Loosen the motor plate screws after removing the motor from the coupling
(2) the coupling is detached from the working machine, do not allow metal tools when removing beat, apply the appropriate removal tool. Can take advantage of coupling shaft threaded holes, use the appropriate tool to install.
Working oil
1, the oil is a fluid coupling torque transmission medium, and how much on oil-filled fluid coupling torque transmission have a greater impact. Oil-filled volume using different, can be a coupling with the corresponding different motor matched to meet the requirements of different working machines.
2, the working oil performance
Working oil performance, a direct impact on the ability of the torque transmission coupling, requires the working fluid has a low viscosity, high flash point, a large poisoning, corrosive and anti-aging.
3, oil-filled and the minimum amount of oil-filled
(1) maximum and minimum amount of oil-filled
Working oil must go through 80-100 mesh / C ㎡ strainer filter before filling fluid coupling.
Correct oil level for the safe operation of hydraulic coupling is very important, so we recommend checking the oil level regularly.
Maximum coupling of two working chambers filled with 80% of full capacity, not filled excessive, not full, otherwise, it will cause the temperature rise in operation, resulting in damage to the coupling pressure to a minimum volume of the working oil-filled Cavity 40% of full capacity, otherwise, would not be adequate lubrication of the bearing is shortened life.
(2) filled inspection
   The amount should be checked regularly filled to ensure that the amount required to make the oil-filled fluid coupling working properly.
Use Precautions:
(A) the transmission direction
Fluid coupling can be rotated in forward and reverse direction, when the installation is complete, the first test, you must check whether it meets the requirements coupling direction of rotation.
(2) mounted on the coupling shield mesh.
(3) When the motor reaches the rated speed, the motivation must begin to operate from, from the motive does not move, you must immediately stop and check whether the load is too large to generate braking apparent.
(4) operation, do not allow coupling leaks.
(5) continuous operation, the working oil temperature does not exceed 90 ℃
(6) after 3000 hours of operation, the aging of the working oil to check if they have been aging, oil is required.
(7) regular inspection of elastic coupling plate wear, the motor shaft and the working machine axis position accuracy
(8) not be demolished coupling, so as not to damage the sealing and assembly accuracy.
(9) fusible plug in fusible alloy melting point of 120 ℃, if the working temperature rise due to a failure to make fusible financialization, the working oil to spray, you should troubleshoot, re-filled. Note that without using metal plugs replace fusible plugs.
(10) shall not be hilarious start working oil to prevent overheating.
(11) should be well ventilated to prevent direct sunlight.