The manufacturer's service attitude is good and the design plan is more reasonable.
WhatsApp +
Extremely reliable coarse crushing equipment
Reliable quality and long service life
Mobile crusher is a more complete, systematic and flexible modular solution that we offer to our customers.
A new generation of high-efficiency coarse and medium-fine crushers: CI5X series impact crushers
·When the centre of gravity of a rotating object is not exactly in the centre line it causes machine unbalance resulting in vibration When a machine is unbalanced it can cause damage to the machine itself the foundation pipes etc There are three types of unbalance static unbalance coupled unbalance and dynamic unbalance Static unbalance
·As with other machine tools grinding machine vibration are usually classified into two types [1] forced vibration and self excited chatter vibration Forced vibrations are caused by periodic disturbance external to the grinding process Such external sources of disturbances may be caused by factors affecting the spindle system such as out
·Grinding spindle vibrations are detrimental not only for surface integrity of ground workpieces as indicated by Ref [57] but also to tool life time Grinding machines show a high share of idle constant power which is utilized for driving the coolant system and the thermal stabilization and for seal air for the protection of linear
·The machine industry has undergone several developments in the past years and reducing the cost and time required for machine designing is important In this study the vibration characteristics of a precision grinding machine were obtained through experimental modal analysis and finite element analysis The experimental modal analysis employed single
·This article presents an overview of current simulation methods describing the interaction of grinding process and grinding machine structure vibrations deflections or thermal deformations Innovative process models which describe the effects of the grinding wheel workpiece interaction inside the contact zone are shown in detail Furthermore
Unwanted vibration in machine tools like milling lathe grinding machine is one of the main problem as it affects the quality of the machined parts tool life and noise during machining operation Hence these unwanted vibrations are needed to be suppressed or damped out while machining Therefore the present work concentrates and aims on study of different
·Many energy field assisted methods have been applied to improve the grinding performance of titanium alloys such as laser electrical discharge plasma and ultrasonic vibration [17] Liu et al found that laser assisted grinding can lower the grinding force by reducing titanium alloy s yield strength through the thermal effect of laser irradiation [18]
·Results demonstrated reduced vibration and energy use versus manual control Validation confirmed improved accuracy in predicting mill responses Lin X Liang J Modeling based on the extreme learning machine for raw cement mill grinding process In Deng Z Li H eds Proceedings of the 2015 Chinese Intelligent Automation Conference
·Fig 1 shows a schematic view of the centerless grinding machine under study Chatter vibrations are dominated by a main mode shape that is excited at frequencies close to 59 Hz characterized by an out of phase movement of the two wheels in the longitudinal Z direction This movement produces an important relative displacement between the lower slide and the
·Using conventional grinding wheels self excited vibrations are one of the most limiting factors in terms of productivity and process stability in cylindrical plunge grinding
·This paper deals with various minute vibrations in surface grinding which produce various undesirable chatter marks on the ground surfaces From the frequency analysis of the minute vibrations during grinding it has been found that the vibration due to the unbalance of the grinding wheel spindle the tuning fork mode vibration of the machine excited by the
·The superposition of a vibration in one axis was chosen to keep the interpretation of the manufactured wheel topography as simple as possible A targeted vibration in the grinding process was achieved by excitation with an electrodynamic shaker Relevant mode shapes and eigenfrequencies were determined by an experimental modal analysis
·The purpose of the paper is to propose a force control based vibration suppression method for robotic grinding of large thin wall parts Large thin wall parts such as wind turbine blades [1] engine blisks [2] and aircraft skins [3] [4] [5] are widely applied in aerospace and energy production industries The final surface finishes of these parts must meet the
·Fig 1 a shows a pictorial view of a typical belt grinding procss of a workpiece golf club head held by two hands on a belt grinding machine observed at a workplace Chen et al 2017 The possible vibration sources and their hypothesized transmission pathways are illustrated in Fig 1 b The basic model of the entire machine workpiece hand arm system
·Ultrasonic vibration assisted grinding UVAG shows excellent performance in the machining of difficult to cut materials Grinding force is one of the key factors affecting the quality of the machined surface which has been investigated both experimentally and theoretically However the research on the modeling of the grinding force of the separated
·One type of machines that are often used in production lines are grinding machines Grinding is the process of removing material with the help of a grinding tool In grinding machines the tool is a wheel made of hard material grains which are attached by a binding material on a basic body Chen and Rowe 1996 The wheel in turn is attached to
·The vibration behavior of the grinding machine spindle system is further determined by both the vibration characteristics of the spindle assembly and the grinding forces Alfares and Elsharkawy
·Modern rotating machines which are represented by high end grinding machines have developed toward high precision intelligence and high durability in recent years As the core components of grinding machine spindles grinding wheels greatly affect the vibration level during operation The unbalance vibration self recovery regulation UVSRR system is
·In the process of worm gear grinding chatter is a kind of unsteady vibration that directly affects the stability of worm gear grinding It will not only leave vibration marks on the surface of the gear reduce its surface integrity and performance but also cause certain damage to the machine tool thus reducing the processing quality and processing efficiency Therefore
The vibration transmitted from the tools or materials to the hands and arms could damage sensory nerves muscles and joints which is called hand arm vibration syndrome HAVS Vibration white finger This is a condition caused by damage to the circulatory system in the hands and fingers as a result of contact with vibrating tools
·Axial ultrasonic vibration assisted grinding has been widely proved to be effective on the ground quality as well as efficiency for hard and brittle materials However the deference of two typical modes axial ultrasonic vibration assisted peripheral grinding AUPG vibration directions are parallel to the ground surface and axial ultrasonic vibration assisted
·Wheel sided chatter vibration is a limiting factor in terms of productivity and surface finish regarding the application of conventional grinding wheels Due to the formation of waviness on the grinding wheel during the process many expensive trueing cycles are necessary Therefore a system for chatter detection and elimination for external cylindrical grinding
The purpose of the article is a theoretical analysis of the occurrence of noise and vibrations of belt grinding machines and the construction of appropriate mathematical models The influence of various noise sources in the machines under consideration was analyzed electric motors belt drives grinding belts axes of cutting units and
