Three-section vibration motor eccentric block vibrator

Abstract

The invention discloses a three-section vibration motor eccentric block vibrator, and belongs to a vibration motor. Most of the conventional long-span vibration motors have large mass, cannot meet the requirements of vibrating screens, and cannot meet the production requirement due to difficult or failed adjustment of excitation force by customers. The three-section vibration motor eccentric block vibrator comprises an explosion proof motor, a fixed eccentric block, an adjustable eccentric block, a shell, and bases symmetrically arranged on two sides of the shell, and is characterized in that: two ends of a main shaft of the motor are respectively connected with one end of each of two eccentric shafts provided with the fixed eccentric block and the adjustable eccentric block through soft couplers; the other ends of the two eccentric shafts are connected with the bases through a bearing and a bearing block sleeved outside the bearing; the fixed eccentric block is positioned on the inner side of the bearing block; and the adjustable eccentric block is positioned on the outer side of the bearing block, and is clamped on the eccentric shaft extending out of the bases through a connecting clamp. The vibrator improves the stress of the main shaft of the motor and improves the thrust-mass ratio, and simultaneously, the excitation force is adjusted accurately and conveniently.

Description

【Technical field】 [0001] The invention relates to a vibration motor, especially a large-span vibration motor. 【Background technique】 [0002] The long-span vibrator can improve the separation effect and increase the separation capacity, especially in the oil industry, the long-span vibrator is beneficial to improve the mud processing capacity and the solid-liquid separation effect. [0003] In terms of force: [0004] (1) Exciting motors of the existing international well-known brand - American Martin Engineering Technology Co., Ltd., its structure is as follows figure 1 As shown, it is essentially a combination of a short-shaped vibration-exciting motor 1' and an elongated cylinder 2'. The method adopted is to use a cylinder 2' to extend the support at both ends of the short motor 1', but it still basically maintains the short shape. The original stress state of the motor 1', therefore, basically has little impact on the service life of the short motor 1', but, due to the...

AI Technical Summary

Problems solved by technology

[0007] (1) Existing foreign large-span vibration motors, the structure is as follows figure 1 As shown, the vibrating motor needs to be disassembled to adjust the exciting force, which is time-consuming and laborious, and the requirements for the mounting surface of the base feet on both sides are high: when adjusting, first loosen the mounting screws of the vibrating motor on the equipment, and remove the vibrating motor from the Disassemble the equipment, disassemble the machine base, loosen the adjustable eccentric block and tighten the screws to realize the stepless adjustment of the exciting force, then install the machine base on both sides, and ensure that the feet on both sides are on the same level, and then install the vibration motor on the equipment On the one hand, the adjustment steps are cumbersome, demanding, labor-intensive, and inefficient

Because the large-span vibrating motor is shorter than the vibrating motor, the weight of the vibrating motor is large, and the force generated is large. If there is a deviation in the adjustment on both sides, the motor will be easily damaged. Therefore, high-precision adjustment of the exciting force is required; The fixed surface of the support foot is in point-line contact, so the local force is relatively large, which can easily damage the fasteners such as screws and cause the motor to fall; in summary, it is difficult for customers to complete the adjustment of the excitation force of such a large-span vibration motor

[0008] (2) The existing domestic large-span vibrating motor, the structure is shown as figure 2 As shown, it cannot be adjusted according to the excitation force required by the customer

[0009] Since most of the large-span vibration motors are installed on the screen box through the base of the motor shell or the base of the extended cylinder, the overall mass of the vibration motor is often very large, which is difficult to further reduce, and cannot meet the needs of vibrating screens, especially flat screens. Requirements for Long Vibration Motors of Dynamic Elliptical Inertial Vibrating Screens

On the other hand, because it is difficult or impossible for customers to adjust the excitation force of the large-span vibrating motor, it cannot meet the needs of production, so the use of large-span vibration exciters is limited

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