Screen frame and screen bed separated double-plastid near resonance screen

Abstract

The invention discloses a screen frame and screen bed separated double-plastid near resonance screen which comprises a screen bed (1) and a screen frame (2), wherein main vibration springs (6) are arranged between the screen bed (1) and the screen frame (2); the screen bed (1) is mounted on the ground by isolation springs (8); exciting vibration motors (9) are mounted on the screen frame (2); the screen frame (2) consists of side plates (3) and transverse beams (4); the main vibration springs (6) are arranged between connecting seats (5) of the side plates (3) and the screen bed (1); and the exciting vibration motors (9) are mounted on the transverse beams (4). The double-plastid near resonance screen has the benefits that the screen frame serves as an exciting vibration body, so that the double-plastid near resonance screen has no extra metal consumption, and a purpose that totally consumed steel is reduced greatly under the same design function parameter; the screen frame serves as an exciter, so that the vibration strength is less, and the structural strength is high in reliability; the double-plastid near resonance screen is designed based on a principle of double-plastid near resonance, and is a large-scale rectilinear vibration screen; the power consumption is less; and an impact of equipment on a foundation is smaller.

Description

technical field [0001] The invention relates to the technical field of vibrating screening devices, in particular to a two-mass near-resonant screen in which a screen frame and a screen bed are separated, which is a large linear vibrating screen. Background technique [0002] Large-scale linear vibrating screens are widely used in the screening of various materials, and the effective area of ​​the largest type of sieve bed is up to 3m×7.2m. Large-scale linear vibrating screens have large horizontal spans, heavy equipment, greater power requirements, and high structural strength requirements. Its common structural form is to install the motor on the ground or a fixed support, and transmit the power to the eccentric excitation device installed on the screen box through the transmission device, and the two sets of eccentric devices are synchronized through mechanical connection. [0003] The small and medium-sized linear vibrating screen can directly install two excitation mot...

AI Technical Summary

Problems solved by technology

In the near-resonance screen, the screen box is a plastid in the double-mass structure, and the other plastid is only an additional structure to achieve near-resonance, which increases the cost of the device

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