Design method of synchronous counterweight cover type explosion-proof door

A design method and technology for explosion-proof doors, which are applied in computing, mining equipment, earth-moving drilling, etc., to achieve the effect of reducing the amount of calculation, avoiding blindness, and simplifying the calculation.

Active Publication Date: 2019-09-27
HEFEI UNIV OF TECH
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  • Abstract
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  • Claims
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for designing a synchronous counterweight cover type explosion-proof door to solve the problem of the prior art synchronous counterweight cover type explosion-proof door only relying on experience to blindly select design parameters

Method used

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  • Design method of synchronous counterweight cover type explosion-proof door
  • Design method of synchronous counterweight cover type explosion-proof door
  • Design method of synchronous counterweight cover type explosion-proof door

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Embodiment

[0103] This embodiment is a synchronous counterweight cover type explosion-proof door, and its specific parameters are: the large end diameter of the explosion-proof door D=7500mm, the total negative pressure of the return air shaft P=5200Pa, and the half cone angle of the explosion-proof cover cone α=75°, Explosion-proof cover surface area S=44.18m 2 , The equivalent number of friction surfaces i=2, and the friction coefficient between the steel wire rope and the steering pulley f=0.1.

[0104] Combine figure 1 , The main steps include:

[0105] Step 1: Simplify the synchronous counterweight cover explosion-proof door to a pressure vessel model, determine the effective thickness of the synchronous counterweight cover explosion-proof door according to the pressure vessel strength theory, and determine the synchronous counterweight cover according to the negative deviation of the thickness of the material and the corrosion allowance The additional thickness of the explosion-proof do...

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Abstract

The invention discloses a design method of a synchronous counterweight cover type explosion-proof door, and belongs to the field of mine ventilation system design. The method for calculating the thickness of the steel plate for the explosion-proof cover plate is given according to the strength theory in the design of the pressure container. The concept of the weight ratio and the stroke ratio is introduced for the first time, a method for calculating the weight ratio and the stroke ratio range is given to reasonably determine the weight, the stroke of the explosion-proof cover and the stroke of the balancing weight of the balancing weight system, and the height of the redirection wheel frame and the height of the balancing weight frame can be further determined through the stroke of the explosion-proof cover and the stroke of the balancing weight. The design and calculation method for the synchronous counterweight cover type explosion-proof door is simple in calculation, the calculation amount during design is reduced, concepts of the counterweight ratio and the stroke ratio are creatively provided, blindness of design of the synchronous counterweight cover type explosion-proof door can be avoided, and the design and calculation method has high engineering practice feasibility and effectiveness.

Description

Technical field [0001] The invention relates to the field of design methods for explosion-proof doors of mine ventilation systems, in particular to a design method for synchronous counterweight cover type explosion-proof doors. Background technique [0002] The mine explosion-proof door is a special sealing device installed in parallel with the main fan of the return air shaft, and it is one of the most important safety components in the mine ventilation system. The explosion-proof door is mainly composed of explosion-proof cover, reversing wheel frame, counterweight and other components, such as figure 1 Shown is the specific structure of the mine explosion-proof door, figure 1 Middle: 1. Explosion-proof door foundation, 2. Oil seal groove, 3. Explosion-proof cover, 4. Reversing wheel frame, 5, Steel wire rope, 6, Rope adjustment device, 7, Reversing wheel, 8, Counterweight frame, 9, Guide rail , 10. Counterweight mechanism, 11. Counterweight mechanism, counterweight block. Com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50E21F1/16E05F1/02
CPCE21F1/16E05F1/025G06F30/20
Inventor 董玉革苏东秦强丁曙光贺良国王虎
Owner HEFEI UNIV OF TECH
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