Damping technology | Shock absorbers, vibration dampers, rotation dampers
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Dämpfungstechnik for industrial applications is used to control vibrations, shocks and unwanted movements. shock absorber, Rotary damper and vibration are special machine elements that ensure optimal performance and longevity of machines. The article highlights the latest developments and shows how these technologies improve industrial processes.
Content
- Rotary dampers that are maintenance-free and ready for installation
- Components for rubber metal buffers for vibration protection
- Vibration damper for light and heavy loads
- Miniature shock absorbers and structural dampers in two linear module applications
- High-performance damper for machines with low installation height
- Viscoelastic shock absorbers for emergency stop
- Pneumatic + electric pallet stoppers for transfer technology
- Miniature shock absorbers optimize production of PET bottles
Rotary dampers that are maintenance-free and ready for installation
15.01.2021 | At Norelem is there now Rotary damper (picture above), which can be used to slow down and dampen linear or rotary movements in a controlled manner. The maintenance-free and ready-to-install rotary dampers are used, for example, in smaller hoods, compartments and drawers.
The rotary dampers increase the component value and reduce the wear of the component. They are suitable for machine and plant engineering where they are used in Linear slide, Pneumaticscylinders and in the conveyor system do their job. Rotary dampers are also suitable for the furniture industry.
The outer body of the damper consists of galvanized steel. The take-up shaft is off Plastic manufactured. The standard parts are available in two forms: Form A has a round mounting shaft. Here the user can choose between clockwise or counterclockwise damping.
Standard-compliant ESD control panels made of special plastics
Shape B has a rectangular one Receiving shaft. The rotary damper then brakes the movement in both directions. If two rotary dampers are to be used with one-sided damping, one version must rotate to the left and one to the right. If two versions rotating in the same direction are installed, the construction is dampened on both sides.
The shock absorbers come in two sizes torque 1 Nm to 8 Nm. The maximum speed is 50 min-1, the maximum cycle rate is 12 / min. Here, a cycle rate corresponds to a 360 ° rotation to the left and right.
Components for rubber metal buffers for vibration protection
15.10.2020 | Wherever drives are installed and technical components are in motion, designers must vibration build into your construction. Helmut Rübsamen produces high-precision mountings and bearing shells for well-known manufacturers in the industry Rubber metal buffer. They are used in mechanical engineering, Automotive industry, Rail technology, shipbuilding and energy technology.
Rubber metal buffers ensure in larger kinematic constructions such as engines or compressorsen for Operational safety and value retention. They can be found in conveyor and transport systems, chassis from Construction or rail vehicles, drive trains from Wind Turbines or for the storage of heavy machinery and marine diesel. Rubber-metal buffers dampen vibrations that occur there, absorb shock loads, ensure smooth running and reduce the wear and tear on sensitive functional components.
For this purpose, Rübsamen produces high-precision mountings as well as housings and bearing shells for them vibration. They consist of heavy-duty steel and stainless steel sheets with a wall thickness of 1 to 6 mm. In terms of dimensions, they cover a wide range. Ring-shaped rubber-metal elements with diameters from 40 to 1000 can thus be realized.
Rubber metal buffers with pretension
The components for the rubber metal buffers are delivered directly to the rubber coating specialists or the vibration damper manufacturers. After being there with long lasting Quality rubber linings have been equipped, they receive the required preload with Rübsamen.
The sheet metal forming specialist produces massive pieces in its main plant in Bad Marienberg Abutment made of steel, which are used in onshore and offshore wind turbines after the rubber elements have been embedded. These molded parts are made of high-strength steel, are 240 x 190 mm in size with a wall thickness of 7,5 mm. They have a mounting plate with holes and a conical cone into which the rubber element will later be fitted.
Such and similar molded parts are in Metal spinning process mostly made entirely from one piece. This cold forming technology, also known as extrusion, is extremely resource-saving and does not require an expensive moldtools out. It is therefore particularly energy-efficient and economical when producing small or medium-sized quantities.
For recordings, bearing shells and housings with rotationally symmetrical geometry the metal spinning process is also suitable. Because such components can be made completely seamless and have the best strength values. This is because the material structure of the steel is not exposed to any significant thermal stress during shaping.
If vibration dampers up to a lot size of 100.000 are required, Rübsamen can use deep drawing in accordance with DIN 8584 and is well equipped here. With a pressing force of up to 600 tons, the company produces housings on its deep-drawing machines, Warehouse and holders for rubber-metal buffers with wall thicknesses from 0,5 to 15 mm and diameters from 20 to 2000 mm or edge lengths of 2000 x 1500 mm.
Vibration damper for light and heavy loads
20.04.2020 | Ruland has a wide selection vibration and rubber buffers in the portfolio for vibration damping, reduction of shock loads and noise and to increase the service life of machines. These cylindrical parts are suitable for applications in the Foodprocessing, packaging industry, materials handling and other industries.
A central one Metalpart, a rubber coating and threaded parts in vibration dampers or rubber buffers allow a connection with various systems and flat surfaces. There is a threaded bolt or a threaded hole on the two smooth sides. They can be used to connect two machine elements. The rubber buffers have a threaded bolt or a threaded hole on one side and a rubber coating on the other. So you can as Attack or Mounting foot .
The rubber coverings with a Shore A hardness of 55 offer a balance between strength and shock absorption. The metal parts are made of stainless steel 1.4301 (AISI 304) and are very corrosion-resistant. Applications that are subjected to regular cleaning can easily withstand them. The galvanized steel cores have high strength and are suitable for general purposes.
Vibration damper between two parts
Both product forms are considered rubber buffers or Sandwich buffer referred to because they are between two components or surfaces as impact or vibration act. They often take the impact of closing machine protection doors, which are fastened between the motors and the mounting frame, and dampen the vibrations here. As Machine feet they prevent slipping, reduce the impact load on the floor, protect the systems and make the working area safer and quieter.
All versions are available with metric thread sizes from M3 to M16 and imperial thread sizes from 8-32 to 3 / 8-16 in outer diameters from 8 to 100 mm. The smaller sizes are mostly used in light load applications Machine protection doors used. The large versions are suitable for more demanding applications such as conveyor systems. Here, for example, they can be installed between the frame and the system legs and ensure high rigidity and reduced noise.
Miniature shock absorbers and structural dampers in two linear module applications
16.09.2019 | When driving fast, good braking is necessary. Users of Linear drives There is a wide range of components and system solutions available today: Hydraulic damping elements such as Miniature Shock Absorbers are suitable for more sophisticated solutions, while cheaper products such as damper perform simpler tasks.
High-performance damper for machines with low installation height
19.09.2019 | With isotope DMSN brings getzner a new vibration protection with a very low installation height: a steel spring only 57 mm high with an integrated high-performance damper. Thanks to the integrated "Sylodamp" core, a highly damping Polyurethane, the steel spring is suitable for machines with many start and stop cycles.
Like all products in this series, Isotope DMSN It has a high level of corrosion protection thanks to the KTL coating and a secure connection between the spring plate and spring thanks to a special bonding and an M8 internal thread. The open design also enables easy load control.
Viscoelastic shock absorbers for emergency stop
25.06.2019 | ACE Shock is adding viscoelastic shock absorbers to its portfolio for the first time and expanding the range of safety products. These offer long-lasting solutions for a wide range of emergency stop applications in heavy industry, for example in crane construction and steelworks, in rail transport, at locks or wind turbines.
With 0,1 KJ/stroke to 1.000 KJ/stroke, the viscoelastic Shock absorbers have an extremely wide range of energy absorption and have clear advantages over other emergency stop solutions, especially in the upper range. Despite these enormous energies, they manage with comparatively small strokes of 12 to 1300 mm.
The new products work according to the principle of hydrostatic compression of elastomers. This means they combine the functions of a shock absorber with those of a return spring. The compact dampers offer very reliable damping properties over many years as well as high damping coefficients and resistance to temperature fluctuations.
The machine elements are available in Steel and stainless steel, so they are also suitable for use in harsh environmental conditions or salt water, or when they have to meet special requirements for the body. After the comparatively simple integration - even in existing structures - they provide peace and perfect protection.
Pneumatic + electric pallet stoppers for transfer technology
09.10.2016 | ACE Shock is expanding the product range in damping technology. A total of 32 different pallet stoppers will be used in the future to meet the most diverse requirements in transfer technology. The new product family provides reliable, efficient and inexpensive helpers for separating pallets weighing 1 to 1200 kg from one another and transporting them individually.
The compact, highly integratedThe machine elements work pneumatically or electrically. With the pneumatic variants, you can choose between single-acting or double-acting separators, which work either without or with inductive or electronic sensing. These models are also available with or without an integrated miniature shock absorber.
Are the Separator Equipped with shock absorbers, it is possible to brake masses up to four times heavier than those that operate purely pneumatically or electrically, even with the same size. An optional air connection guarantees that the stop is retracted even at lower loads.
If no compressed air is available or required, the electric pallet stoppers are available on transfer systems of production and assembly lines. Mounted on the separation or loading unit or directly on the workpiece, they stop, separate and dampen one or more accumulating workpiece carriers on the stop plate defined for them in an extremely reliable manner. In this case, there are additional advantages in terms of noise reduction and the careful use of resources.
Presentation at Motek
Andor Raffael, Product Manager for Pallet Stoppers, ACE Stoßdämpfer GmbH, introduces the pneumatic and electric pallet stopper, which separates pallets weighing up to 1200 kg. Pneumatic and electric pallet stoppers are used in a wide variety of areas, such as the food and packaging industry, the automotive and supplier industry, and medical technology. There is also a large number of accessories.
Miniature shock absorbers optimize production of PET bottles
19.01.2016 | ACE Shock has developed a completely new generation of miniature shock absorbers for the production of PET bottles. The introduction of the "Maximace" family opens up new possibilities in the production of PET containers. Specially designed for use in stretch blow molding machines from Sidel and Krones and compared with previous solutions, Maximace enables existing pneumatically driven designs to cycle faster than before and increase production quantities without causing additional wear.
The damper types score points in the manufacturing process PET27EUM in various hardnesses (1 - 4) both in the dampening of the stretch piston and in the braking of kinetic energy when closing the mold: New outer bodies made of aluminum enable better heat dissipation compared to previous solutions.
Optimized seals
They are also equipped with optimized seals and designed for temperatures of up to approx. 107 °C. Thanks to the combination of chrome-plated piston rods, hardened pressure sleeves with throttle holes and special diaphragm accumulators, the new dampers offer a service life of over 20 million strokes when operating standard but also tuned stretch blow molding machines.
With a total weight of 0,2 kg, the Damper pistons, supported by a robust spring, in just 0,1 s. The associated faster cycle times are also achieved by the diaphragm accumulator, which also promotes the longer service life of the dampers. The combination of new materials and superior internals of the shock absorbers ensures that they absorb comparatively more energy. Reduced recoil forces and an increased service life lead to less stress on machines and therefore less downtime. The new products are very suitable as a replacement solution because service technicians can immediately see which damper is to be integrated into stretching stations and which into blowing stations, among other things due to the color coding of the outer bodies.
Source: This article is based on information from the following companies: ACE, Getzner, Norelem, Rübsamen, Ruland.
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Angela Struck is editor-in-chief of the development scout and freelance journalist as well as managing director of Presse Service Büro GbR in Ried.
