Mechanical soft starting auxiliary driving device

A technology of auxiliary drive and soft start, which is applied in the direction of fluid pressure actuation devices, mechanical equipment, fluid pressure actuation system components, etc., can solve the problems of increasing fault points, reducing reliability, and high price, so as to improve braking deceleration performance, elimination of shock and vibration, and reduced fatigue

Active Publication Date: 2016-02-03
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using the above-mentioned driving device, although the soft start and soft stop of the working mechanism can be realized, there are still many problems in the actual operation: the AC variable frequency speed regulation drive system is technically difficult, and the use of frequency converters to drive the motor at the rated frequency cannot save energy. , will reduce the efficiency of the system due to the loss of the frequency converter itself, increase the number of fault points, and reduce the reliability. ;Liquid viscous friction soft start system

Method used

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  • Mechanical soft starting auxiliary driving device
  • Mechanical soft starting auxiliary driving device
  • Mechanical soft starting auxiliary driving device

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Such as figure 1 As shown, the mechanical soft start auxiliary driving device in this embodiment includes a prime mover 1, a mechanical soft start device 2, a transmission device 3, a working mechanism 4, a gate control system 5, a clutch 6, a second driving motor 15, a hydraulic pump 16. The second safety valve 17, the three-position four-way control valve 18 and the controller, the mechanical soft start device is connected with the prime mover and the speed change device, the speed change device is connected with the working mechanism, and the start and stop of the working mechanism are passed by the mechanical soft start device The speed change device is controlled, and the gate control system is installed on the working mechanism; the second drive motor is connected to the hydraulic pump, and the hydraulic pump is connected to the mechanical soft start device through the three-position four-way control valve, and the controller realizes the control of the entire syst...

Embodiment 2

[0035] Such as figure 2 As shown, the working mechanism in the mechanical soft start auxiliary drive device in this embodiment is a belt conveyor, the prime mover 1 is replaced by a drive motor 19, the mechanical soft start device 2 is a speed-regulating type hydraulic coupling, and the speed change device 3 is reducer.

[0036] The speed-regulating hydraulic coupler 2 is connected with the driving motor 19 and the reducer 3, and the reducer 3 is connected with the belt conveyor 4, and the start and stop of the belt conveyor 4 are passed by the speed-regulating hydraulic coupler 2 through the reducer 3 control, the gate control system 5 is installed on the belt conveyor 4; the second drive motor 15 is connected to the hydraulic pump 16, and the hydraulic pump 16 is connected to the speed-regulating hydraulic coupler 2 through the three-position four-way control valve 18, and the controller To realize the control of the whole system, it also includes the power unit 7, combine...

Embodiment 3

[0041] Such as image 3 As shown, the working mechanism of the mechanical soft start auxiliary drive device in this embodiment is a scraper conveyor, the prime mover 1 is replaced by a drive motor 19, the mechanical soft start device 2 is a viscous clutch, and the speed change device 3 is a reducer. The difference from the mechanical soft start auxiliary driving device in Embodiment 1 is that the second safety valve 17 and the three-position four-way control valve 18 are removed.

[0042] Since the fluid-viscous clutch transmission is based on Newton's law of internal friction, the normal work does not need to be controlled by filling and discharging fluid, so the second safety valve and three-position four-way control valve are removed.

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Abstract

The invention discloses a mechanical soft starting auxiliary driving device. The mechanical soft starting auxiliary driving device comprises a prime motor, a mechanical soft starting device, a speed changing device, a working mechanism, a gate control system, a clutch, a second driving motor, a hydraulic pump, a second safe valve, a three-position four-way control valve, a controller, a power device, a combined reversing valve, an energy accumulator, a pressure sensor, a two-position two-way control valve and a first safe valve. When the working mechanism starts, the power device is in the hydraulic motor working condition to assist in starting of the working mechanism, and when the working mechanism brakes, the power device is in the pump working condition to assist in braking. By means of the mechanical soft starting auxiliary driving device, the effects of soft starting and soft stopping of common driving devices can be achieved, moreover, auxiliary braking and braking energy recycling can be achieved through an energy recycling device, the energy consumption of the working mechanism in the starting and stopping process is reduced, and the problem that the common existing driving devices cannot achieve energy saving effect basically is solved.

Description

technical field [0001] The invention relates to a mechanical driving device, in particular to a mechanical soft start auxiliary driving device. Background technique [0002] Belt conveyors / scraper conveyors / loaders / shield cutterheads / crushers and other equipment are widely used in the production process of modern industrial enterprises and are an indispensable part of the production process of modern industrial enterprises. The basic equipment in the production mechanization system. Its performance determines the efficiency and level of transportation mechanization and production mechanization. How to correctly select a reliable and controllable driving device, reasonably control the start-up process to avoid excessive stress and oscillation, and improve the overall economy of equipment are key issues in the design of transportation machinery and production machinery. [0003] At present, the commonly used driving devices include AC variable frequency speed regulation driv...

Claims

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Application Information

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IPC IPC(8): F15B21/00F15B21/14
CPCF15B2201/00
Inventor 权龙刘辉郝惠敏黄家海汪成文
Owner TAIYUAN UNIV OF TECH
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