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Anti-blowing out device for reusable anti-blowing plug

An early warning device and anti-blowout technology, which is applied in the direction of transmission device, fluid transmission device, heating/cooling contact switch, etc., can solve the problems that the anti-blowout plug affects the operation of the equipment, has no early warning function, and cannot be reused.

Inactive Publication Date: 2008-09-17
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems that the fusible alloy in the blowout plug of the existing hydraulic coupler cannot be reused after being sprayed out, the replacement of a new blowout plug affects the operation of the equipment, and there is no early warning function, the invention provides a blowout plug for repeated use. Blowout prevention warning device

Method used

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  • Anti-blowing out device for reusable anti-blowing plug
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  • Anti-blowing out device for reusable anti-blowing plug

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Embodiment Construction

[0007] In conjunction with the embodiment, it is specifically described as follows: as shown in the accompanying drawings figure 1 As shown, the blowout prevention warning device for repeated use of the blowout prevention plug is composed of a secondary protection fusible plug 1, a blowout prevention plug 2, a special swing switch 3, and an electric controller 4. The fusible alloy melting point of the secondary protection fusible plug 1 is 130°C ± 5°C, and the early warning protection control temperature of the blowout preventer 2 is 110°C ± 5°C, which are respectively installed in the torque-limiting hydraulic coupling 17 driven by the pump wheel There are two places on the same circumference of the pump wheel or the end face of the casing. When the blowout plug 2 fails due to an accident, the pump wheel drives the torque-limiting hydraulic coupling 17 to continue to heat up until it reaches the rated temperature of the secondary protection fusible plug 1. The fusible alloy m...

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PUM

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Abstract

There is disclosed a blow-out preventing early warning device with a reusable blow-out preventing plug for pump impeller driven range-limiting hydraulic couplings. The reusable blow-out preventing plug is mounted on the pump impeller or the casing. When the working machine overloads, the turbine of the hydraulic coupling and the working machine stop running. When the idling temperature of the motor, the pump impeller and the casing goes up to a rated value, the feeler lever of the blow-out preventing plug springs and the toggles a special swinging switch to change the switching state, so that an electric controller can make the early warning red light shine, the buzzer alarm and the motor interrupt.

Description

technical field [0001] The invention relates to a blowout prevention and early warning device for repeated use of a blowout prevention plug of a pump wheel driven torque-limiting type hydraulic coupler. Background technique [0002] The torque-limiting hydraulic coupling driven by the pump wheel is widely used in the flexible connection between the power machine and the working machine. The working fluid (oil or water) is used as the medium to transmit the torque under the action of the pump wheel and the turbine, and the working machine can be slow and stable. Acceleration, when the working machine is overloaded or jammed, the input shaft of the hydraulic coupling and the pump wheel rotate, the turbine and the working machine do not rotate, the temperature of the working fluid rises, and the fusible plug of the torque-limiting hydraulic coupling driven by the pump wheel melts. The working fluid is sprayed out, and the power machine drives the pump wheel to run idly, thereby...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H41/24F16D33/18H01H37/76
Inventor 王大明
Owner HARBIN INST OF TECH
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