Swing screw hoist double suspension point steel gate

Swing screw hoist double suspension point steel gate

The QDA series screw opening and closing machine is an electromechanical integrated fully sealed structure, suitable for outdoor work, and adopts worm gear transmission. Equipped with travel limit and torque protection devices, the travel limit device consists of a set of counting gears and hard contact limit switches. When the gate is opened or closed in place, the counting gear drives the travel limit rod, causing the hard contact limit switch to work and automatically stop the gate opening and closing action. When the torque increases due to some reason, the torque protection switch will act to protect the opening and closing device from accidental damage. A pointer type opening indicator and heating resistor are separately designed on the electric device. The pointer type opening indicator is connected to the counting gear, which can intuitively reflect the opening position of the gate. The heating resistor is automatically connected during the operation of the opening and closing machine to remove moisture from the electric device, ensure internal dryness, and ensure the reliable operation of various electrical components. The opening and closing nut and the output end of the electric device use a tooth embedded connector. The claw of the tooth embedded connector has a gap, which creates a hammering effect at the moment when the gate is opened, achieving the purpose of hammering start and increasing the pre lifting force when the gate is opened and closed. The cast iron support is a closed structure used to withstand the gravity or reaction force when opening and closing the gate, and is equipped with load-bearing bearings inside. It can be done both on-site and remotely. Manual and electric automatic switching.

Handlight dual-purpose hoist is a multifunctional hoist widely used in water conservancy and hydropower projects, river treatment projects, various water supply and drainage projects, and urban sewage treatment projects for the lifting and adjustment of gates, barriers, and other structures. The structure of the dual-purpose flashlight opening and closing machine consists of a casing, cover, bracket, nut, screw, pressure bearing, screw, worm gear, worm gear handle, motor, electrical appliances, etc. The flashlight dual-purpose opening and closing machine adopts a worm gear, and the worm gear variable speed nut rotates to make the screw move up and down. The flashlight dual-purpose opening and closing machine has dual protection measures of torque protection and stroke limit; There are multiple forms of control, including single control and centralized control; The flashlight dual-purpose opening and closing machine has an opening degree indicator and an opening and closing light signal indicator; There are various forms such as ordinary, outdoor, explosion-proof, etc., which can adapt to the needs of different environments.

In hydraulic engineering, sliding steel gates play a crucial role in regulating water level and controlling water flow, and their quality directly affects the safety and stability of the project. And careful selection of materials is the beginning of creating high-quality sliding steel gates. The selection of steel as the main component material of sliding steel gates is crucial. We will prioritize the use of steel with high strength and good toughness. This type of steel undergoes strict processing and has excellent tensile, compressive, and bending properties. It can withstand large water pressure and impact forces, ensuring that the gate does not deform or damage during long-term operation. At the same time, its good resilience can effectively absorb energy, reduce the risk of rupture, and ensure engineering safety when the gate encounters sudden situations such as earthquakes and floods. In addition to the main steel material, the selection of sealing materials cannot be ignored. High quality rubber sealing strips are the key to ensuring the sealing performance of the gate. We use rubber materials that are resistant to aging, wear, and have good elasticity. They can maintain good sealing effects under different environmental temperatures and water quality conditions, prevent water leakage, and improve the efficiency of water resource utilization. Moreover, this rubber sealing strip also has good flexibility, which can adapt to small deformations of the gate and ensure the reliability of the seal. For the connectors and fasteners of the gate, we use high-strength alloy steel materials. These connectors and fasteners need to withstand significant tensile and shear forces, and high-strength alloy steel can meet their mechanical performance requirements, ensuring the firmness and stability of the connection. At the same time, we also perform special anti-corrosion treatments on its surface, such as galvanizing, spraying, etc., to improve its corrosion resistance and extend its service life. In the manufacturing process of sliding steel gates, careful selection of materials is the foundation for creating high-quality gates. We always adhere to strict quality standards, control material quality from the source, provide safe, reliable, corrosion-resistant and durable sliding steel gates for water conservancy projects, and contribute to the development of the water conservancy industry.

Steel gates and hoisting machines are important equipment in hydraulic engineering, and their operating status directly affects the safety and efficiency of the project. The following provides a detailed introduction to common faults and their solutions from the perspectives of steel gates and hoisting machines:1、 Common faults and solutions of steel gates

1. Gate leakage

Fault manifestation: There is still leakage after the gate is closed, which affects the water storage capacity of the reservoir or channel.

Processing method:

Check the waterproof rubber: Aging, damage, or improper installation of the waterproof rubber can cause water leakage, and it needs to be replaced or adjusted in a timely manner.

Check the deformation of the door body: The door body is deformed due to uneven stress or corrosion, and needs to be corrected or reinforced.

Check the door slot: There are debris or rust inside the door slot, which needs to be cleaned and maintained.

2. Gate blockage

Fault manifestation: The gate experiences jamming or cannot be opened or closed normally during the opening and closing process.

Processing method:

Cleaning the door slot: Any accumulated mud, debris, etc. inside the door slot should be cleaned up in a timely manner.

Check the roller or slider: The roller or slider is worn, corroded, or stuck and needs to be replaced or lubricated.

Adjust the position of the door: The installation position of the door is offset and needs to be readjusted.

3. Corrosion of the gate

Fault manifestation: Corrosion appears on the surface of the gate, affecting the structural strength and service life.

treatment method

Corrosion treatment: Regularly maintain or replace the anti-corrosion coating on the gate.

4. Gate vibration

Fault manifestation: The gate experiences abnormal vibration during operation.

Processing method:

Check the water flow conditions: Unstable water flow may cause vibration, and it is necessary to adjust the gate opening or optimize the water flow conditions.

Reinforcement of door structure: The stiffness of the door structure is insufficient and needs to be reinforced.

2、 Common faults and solutions of winch hoist

1. The hoist cannot be started

Fault manifestation: After pressing the start button, the on-off machine has no response.

Processing method:

Check power supply: Confirm if the power supply is functioning properly.

Check the control circuit: If the control circuit is faulty (such as damaged contactors or relays), it needs to be replaced or repaired.

Check motor: Motor malfunction requires maintenance or replacement.

2. Abnormal operation of the hoist

Fault manifestation: Abnormal noise, vibration, or high temperature occur during the operation of the opening and closing machine.

Processing method:

Check transmission components: gears, bearings, and other transmission components are worn or loose and need to be replaced or tightened.

Check the lubrication condition: If the lubrication is insufficient or the lubricating oil has deteriorated, it is necessary to supplement or replace the lubricating oil.

Check motor load: When the motor is overloaded, check whether the load is too large or whether there is any jamming in the mechanical parts.

3. Steel wire rope malfunction

Fault manifestation: The steel wire rope is broken, worn, or loose.

Processing method:

Replace the steel wire rope: If the steel wire rope is worn or broken, it should be replaced in a timely manner.

Adjust the tension of the steel wire rope: If the steel wire rope is loose, adjust the tension to ensure normal operation.

Check the pulley system: The pulley system is worn or stuck and needs to be replaced or lubricated.

4. Brake failure

Fault manifestation: The brake cannot brake normally, resulting in the gate being unable to stop at the designated position.

Processing method:

Check the brake clearance: If the brake clearance is too large or too small, it needs to be adjusted to the specified value.

Check the brake friction plate: The friction plate is worn or oil contaminated and needs to be replaced or cleaned.

Check the hydraulic system of the brake: If there is a malfunction in the hydraulic system, repair or replace the hydraulic components.

5. Limit switch malfunction

Fault manifestation: After the gate is fully opened and closed, the limit switch does not operate, resulting in equipment damage.

Processing method:

Check the limit switch: The limit switch is damaged or displaced and needs to be replaced or adjusted.

Check the travel control: The travel control circuit is faulty and requires maintenance or replacement of related components.

3、 Daily maintenance suggestions

Regular inspection: Regularly inspect steel gates and hoisting machines to promptly identify and address potential faults.

Lubrication and maintenance: Regularly lubricate transmission components, rollers, sliders, etc. to reduce wear and tear.

Anti corrosion treatment: Regularly maintain the anti-corrosion coating on the steel gate to extend its service life.

Record maintenance: Establish equipment maintenance records to document each maintenance and overhaul, facilitating subsequent management.

Swing screw hoist double suspension point steel gate