Oil-free direct-driven vibrating screen

Abstract

The invention belongs to the technical field of screening, particularly relates to an oil-free direct-driven vibrating screen and a mounting method thereof, and solves the technical problems of unreasonable design and the like in the prior art. The oil-free direct-driven vibrating screen comprises a vibrating screen frame which is fixed on an elastic supporting mechanism and is obliquely arranged, at least one vibrating motor is mounted above the two sides of the vibrating screen frame, a vibrating motor arranged above one side of the vibrating screen frame and a vibrating motor arranged above the other side of the vibrating screen frame are oppositely arranged, an output shaft of each vibrating motor is provided with an eccentric block and a universal coupling, with the two ends correspondingly connected to the output shafts of two vibrating motors which are oppositely arranged, which is transversely arranged above the vibrating screen frame in the width direction. The vibrating screen has the advantages of being simple in operation and maintenance and more compact in structure.

Description

technical field [0001] The invention belongs to the technical field of screening, and in particular relates to an oil-free direct-drive vibrating screen and an installation method thereof. Background technique [0002] The traditional vibrating screen is mainly driven by several driving motors, usually 1-2, which are driven by a belt with a pulley installed at one end of the bearing seat to reduce speed. The other end of the bearing seat is connected to the screen frame of the vibrating screen through an elastic coupling. The eccentric vibration components on the side are connected, and the eccentric vibration components are rigidly connected with the eccentric components installed on the other side of the screen frame through the main shaft of the screen body. When the driving motor rotates, it drives the two sets of eccentric vibration components to rotate at the same time to obtain an eccentric driving force. Since the entire screen body is supported by four support sprin...

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Problems solved by technology

[0004] 1. Since the eccentric component needs to pass through the coupling, then pass through the pulley on the bearing seat, and then connect to the drive motor, the overall vibrating screen has large dimensions and heavy weight, which not only increases the manufacturing cost, increases the packaging and transportation cost, but also affects the production workshop. Installation space is limited

[0005] 2. The drive motor, pulley and bearing group can be referred to as the drive unit for short. Since the drive unit is connected to the eccentric component through an elastic coupling, the eccentric component is rigidly connected to the screen body, and the screen body performs an eccentric reciprocating motion, so the drive unit does not It moves together with the screen body, but needs to be rigidly connected to the ground, so additional cement foundation and supporting steel platform are required, which also increases the manufacturing and installation cost of the equipment

[0008] 5. The grease lubrication of the bearing group also needs regular inspection and refueling

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