Internal mixer discharging door magnetorheological damping device

Abstract

The invention discloses an internal mixer discharging door magnetorheological damping device, which comprises a magnetorheological damper, a discharging door, a rotating shaft, a gear and a rack, wherein the magnetorheological damper is connected with the rack; the discharging door is connected with the rotating shaft through a key; the gear is connected with the discharging door; the gear and the rack are engaged. The internal mixer discharging door magnetorheological damping device has the advantages that the structure is simple; the cost is low; the energy is saved; zero emission is realized; the impact resistant force is great; the impact resistance is adjustable; meanwhile, the operation site is clean and neat; the repair cost after the sales can be simplified and reduced; the use and maintenance cost of a customer can also be greatly reduced; the economic benefits are improved; the service life of an internal mixer door axle and the service life of an internal mixer are prolonged to the maximum degree.

Description

technical field [0001] The invention relates to a magnetorheological damping device for a discharge door of an internal mixer. Background technique [0002] The internal mixer is one of the rubber mixing equipment commonly used by rubber product enterprises. The traditional internal mixer mainly includes: feeding device, pressing device, locking device, discharging (unloading) device, hydraulic system, control system, etc. In terms of improving production efficiency, the discharge (unloading) device is a key component of the internal mixer. Its main function is to quickly close the discharge door before the rubber mixing, and quickly open the discharge door after the rubber mixing; To make the discharge (unloading) of the internal mixer smooth and easy to clean. Generally, for medium and large internal mixers, the discharge door mostly adopts a rotary opening and closing structure, and the discharge door is mostly set at the bottom of the internal mixing chamber. Therefore,...

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Problems solved by technology

[0002] The internal mixer is one of the rubber mixing equipment commonly used by rubber product enterprises. The traditional internal mixer mainly includes: feeding device, pressing device, locking device, discharging (unloading) device, hydraulic system, control system, etc. In terms of improving production efficiency, the discharge (unloading) device is a key component of the internal mixer. Its main function is to quickly close the discharge door before the rubber mixing, and quickly open the discharge door after the rubber mixing; To make the discharge (unloading) of the internal mixer smooth and easy to clean. Generally, for medium and large internal mixers, the discharge door mostly adopts a rotary opening and closing structure, and the discharge door is mostly set at the bottom of the internal mixing chamber. Therefore, when the discharge door is opened, due to a series of influencing factors such as the pressure of the rubber in the mixing chamber, the self-weight of the rubber and the discharge door (their mass is often large), and the potential energy generated by the original position of the discharge door, The initial acceleration of the discharge door is very large, which will cause great shock and vibration to the door shaft and even the entire equipment. If it cannot be well controlled, it will directly affect the service life of the door shaft and the internal mixer. So far, the general The medium and large rotary door-opening and unloading internal mixers all use hydraulic devices to output resistance torque to control the rotation speed of the door shaft and play a role in protecting the internal mixer; compared with pneumatic control, hydraulic devices have high control pressure and low response. Fast speed is one of the reasons for its wide application, so the general medium and large internal mixers adopt hydraulic control, but equipped with hydraulic stations and corresponding control systems, the structure of the equipment is cumbersome, the control is complicated, the cost increases, and the reliability However, it is often reduced due to the instability of the hydraulic system. In addition, the equipment structure increases, the area of ​​the work site increases, and the subsequent operation and maintenance costs are also high. According to past experience, the general life of hydraulic components is about 5 years. It must be replaced, the leakage of the hydraulic station and the replacement and discharge of hydraulic oil will also cause continuous operating space and environmental pollution and other ills

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