A hoist for a shutoff valve

Abstract

The utility model provides a kind of winch for cut-off valve, including motor, electro-hydraulic brake, speed reducer, reel, base, air cannon bracket, air cannon, universal coupling, motor is connected with the main shaft of speed reducer, electro-hydraulic brake is installed between motor and speed reducer, air cannon is connected with the manual input shaft of speed reducer by universal coupling joint, air cannon bracket is equipped on base, the output shaft of speed reducer is cooperated with reel by a group of gear set. Under the condition of power-off, air cannon drives the rotation of speed reducer manual input shaft, the quick cut-off of cut-off valve can be realized.

Description

Technical Field

[0001] This utility model relates to a winch for a shut-off valve. Background Technology

[0002] The shut-off valve of a blast furnace gravity dust collector is a key piece of equipment in the blast furnace gas gravity dust collection system. It is primarily used to control the flow of blast furnace gas and ensure the safe operation of the system. The shut-off valve relies on a winch and pulley system to open and close. During normal blast furnace operation, the shut-off valve is normally open. In case of blast furnace shutdown or emergency, the valve needs to close quickly. Currently, the shut-off valve winch relies on a manual crank to drive the reducer during power outages. Due to the high speed of the reducer, manual operation can require thousands of rotations to fully open and close the valve, which cannot meet the requirement for rapid valve closure. Utility Model Content

[0003] To address the problems mentioned in the background art, this utility model provides a winch for a shut-off valve, comprising a motor, an electro-hydraulic brake, a reducer, a drum, a base, an air gun bracket, an air gun, and a universal coupling. The motor is connected to the main shaft of the reducer, the electro-hydraulic brake is installed between the motor and the reducer, the air gun is connected to the manual input shaft of the reducer via a universal coupling, the base is provided with an air gun bracket, and the output shaft of the reducer is connected to the drum via a set of gears.

[0004] Furthermore, a counter is provided on the manual input shaft of the reducer to display the number of revolutions of the manual input shaft. Beneficial effects

[0005] In the power-off state, the shut-off valve can be quickly shut off by manually rotating the reducer shaft through the pneumatic wrench. Attached Figure Description

[0006] Figure 1 This is a side view of the structure of this utility model;

[0007] Figure 2 This is a front view of the structure of this utility model.

[0008] In the diagram: 1. Motor; 2. Electro-hydraulic brake; 3. Reducer; 4. Handwheel; 5. Universal coupling; 6. Pneumatic wrench; 7. Pneumatic wrench bracket; 8. Drum; 9. Gear set; 10. Base. Detailed Implementation

[0009] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0010] See Figure 1-2 A winch for a shut-off valve includes a motor, an electro-hydraulic brake, a reducer, a drum, a base, an air gun bracket, an air gun, a universal coupling, and a gear set. The motor is connected to the main shaft of the reducer. The electro-hydraulic brake is installed between the motor and the reducer for braking when the winch is stopped. The air gun is connected to the manual input shaft of the reducer via a universal coupling. An air gun bracket is provided on the base for easy operation of the air gun. The air gun can be removed when the winch is running normally; in the event of a power outage, the air gun can be directly connected to the manual input shaft of the reducer. The output shaft of the reducer is connected to the drum via a gear set. A counter is installed on the manual input shaft of the reducer to display the number of rotations of the manual input shaft.

[0011] In case of power failure or when the winch cannot be operated electrically, place the pneumatic wrench on its bracket, connecting it to the winch via a universal coupling. Manually release the winch's electro-hydraulic brake, start the pneumatic wrench, and quickly close the valve. Based on the counter reading, switch to handwheel operation to avoid closing the valve too quickly, which could damage it.

[0012] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A winch for a shut-off valve, comprising a motor, an electro-hydraulic brake, a reducer, a drum, a base, an air jet bracket, an air jet, and a universal coupling, characterized in that... The motor is connected to the main shaft of the reducer, the electro-hydraulic brake is installed between the motor and the reducer, the air gun is connected to the manual input shaft of the reducer through a universal coupling, the base is provided with an air gun bracket, and the output shaft of the reducer is connected to the drum through a set of gears.

2. The winch for a shut-off valve according to claim 1, characterized in that... The reducer has a counter on its manual input shaft that displays the number of rotations of the manual input shaft.

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