Large amusement facilities slewing bearing installation method
Large amusement facilities slewing bearing installation method
Slewing bearing is a kind of large bearing commonly used in modern machinery and equipment, which can withstand large axial, radial coincidence and overturning moment at the same time. At the same time, it is also an important part in the gyration system of large amusement facilities, bearing various loads during the operation of the equipment. In addition to calculation and selection, attention must be paid to its correct installation and use. Installation error and improper use of the harm to the amusement facilities can not be ignored. So how to install the slewing support of amusement facilities?
The motion forms of amusement facilities mainly include rotation motion, linear motion and the compound motion of rotation and linear motion. Among them, rotating motion is the main form of amusement equipment, such as turning horse, automatic control aircraft and high altitude flying, and the main component to achieve rotating motion is the slewing bearing.
First, the installation form of slewing support of amusement facilities
In the field of amusement equipment, slewing bearing installation has the following two forms: horizontal installation and vertical installation.
The flying tower and automatic - controlled aircraft amusement facilities are characterized by rotation around the central axis. Flying tower amusement facilities have high altitude flying, shaking head flying chair, automatic control aircraft amusement facilities have automatic control aircraft, big octopus and so on. Slewing supports in this type of equipment are mounted horizontally.
The ride is characterized by rotation or swing around a horizontal axis. The amusement facilities of the viewing car include roar, big pendulum, etc., and the installation form of the slewing support of this kind of equipment is vertical installation.
Second, the installation of slewing bearing
1. Before installing the slewing bearing, check the mating surface and clean the two mounting surfaces to avoid any solvent contact with the sealing belt or into the raceway. Do not paint the sealing belt.
2, slewing bearing installation seat components should have enough stiffness, bearing contact surface must be cleaned up, should be lubricating oil and must be kept dry, with the surface should be machined to ensure that the two mating surfaces and the two end faces of the slewing bearing in complete contact on the whole circumference, to meet the relevant standards of flatness and inclination.
3. The bolts selected for the slewing bearing are high-strength bolts, and the length of the mounting bolts shall not be less than 5d(d is the diameter of the thread).
4, the amusement facilities slewing bearing connection, the use of 8.8 grade above high strength bolts, can not use full-threaded bolts, the anti-loosening method is double nut method, the two nuts should be the same, with flat pad to increase the support area, can prevent the installation surface hardness is not high caused by extrusion plastic deformation, is conducive to maintain the reliability of pre-tightening. Because the spring washer will destroy the centrality of the bolt force, reduce the pressure area and rigidity of the nut on the connecting parts when passing, and reduce the connection strength of the bolt. In any case, the spring washer shall not be used.
5, installation should be the slewing support radial positioning, and then cross tighten the installation bolt, that is, the use of star installation, in the direction of 180° symmetric continuous, after a double screw again, to ensure that the circumference of the bolt has the same pre-tightening force, and check the rotary table slewing support. In order to increase the reliability of the connection, the prestress of the bolt should be 70% of the yield strength of the bolt material.
6, in order to ensure that the rotary rotary bearing rotates smoothly, the gear should be checked before the installation bolt is not completely tightened, the small value of the clearance of the tooth side is generally 0.03 ~ 0.04 X m(modulus), in the final fastening slewing support, the pinion gear clearance on the whole circumference to be re-checked.
The above is about the large amusement facilities slewing bearing installation method, Luoyang constant crown bearing is a set of design, research and development, production, sales and service in one of the slewing bearing/turntable bearing comprehensive entity enterprises. Products are widely used in new energy, medical, entertainment, automation, lifting, construction, mining, metallurgy, port, textile, shipbuilding, environmental protection, aerospace, wind power and other fields. In addition, the implementation of personalized optimization design and customized flexible production for different customers to meet the needs of customers. Welcome to have the need of friends to call for detailed consultation.
