Archive for category: news

The rotation direction of the dual motors of the vibrating screen is usually opposite. This rotation in opposite directions can form an up and down reciprocating motion, which helps to effectively separate and screen the materials during the screening process, and at the same time ensures that the vibrating screen can form an effective screening effect. The following is a detailed explanation of the rotation direction of the dual motors of the vibrating screen:

Vibrating screen dual motor rotation direction

1. The importance of the rotation direction of the dual motors of the vibrating screen

In the vibrating screen, the exciting force generated by the reverse rotation of the two vibrating motors offsets the lateral vibration, and the remaining vibration in the forward direction forms a jumping linear motion. This mode of movement allows the material to move forward in a straight line on the screen surface, thereby achieving the screening of the material.

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For more detailed information about the rotation direction of the dual motors of the vibrating screen, please click here: https://www.hsd-industry.com/news/vibrating-screen-dual-motor-rotation-direction/

Adjusting the vibration force of a vibrating feeder is crucial to ensure it operates efficiently and effectively. The vibration force can be modified by adjusting the eccentric weights or the amplitude and frequency of the vibrating motors.

The steps to adjust the vibration force of a vibrating feeder

1. Understand the Equipment

Refer to Manual: Before making any adjustments, consult the manufacturer’s manual for specific instructions and safety guidelines related to your vibrating feeder model.

Identify Components: Familiarize yourself with the key components, such as the vibrating motors, eccentric weights, and control settings.

2. Safety Precautions

Power Off: Ensure the feeder is turned off and disconnected from the power supply before making any adjustments.

Safety Gear: Wear appropriate personal protective equipment (PPE), such as gloves and safety glasses.

3. Adjusting Eccentric Weights

Locate the Eccentric Weights: The eccentric weights are usually mounted on the vibrating motors. Each motor typically has two weights: one fixed and one adjustable.

Adjust the Angle of Weights:

Loosen the bolts securing the adjustable weights.

Rotate the adjustable weights to the desired angle to increase or decrease the vibration force.

Align the weights on both motors to ensure balanced vibration.

Tighten the bolts securely after making adjustments.

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For more detailed information on the vibration force adjustment method of the vibrating feeder, please click to visit: https://www.hsd-industry.com/news/vibrating-feeder-vibration-force/

Installing angular contact bearings correctly is crucial for ensuring their performance and longevity. There are several methods for installing these bearings, each suitable for different applications and configurations.

Angular contact bearings installation

1. Single Bearing Installation

Mounting Position: Angular contact bearings must be mounted in the correct orientation, with the marked side facing the correct direction to handle axial loads.

Press Fit: The bearing is press-fitted onto the shaft or into the housing. This method often uses a press tool to ensure the bearing is seated properly without applying undue force to the rolling elements.

Thermal Fit: The bearing or housing is heated (thermal expansion) to allow easier fitting. Once cooled, the bearing contracts to form a tight fit.

2. Paired Bearing Installation

Back-to-Back (DB) Arrangement: Bearings are mounted with their back faces together. This configuration can handle axial loads in both directions and provides high rigidity.

Face-to-Face (DF) Arrangement: Bearings are mounted with their front faces together. This setup also handles axial loads in both directions but allows for some misalignment.

Tandem (DT) Arrangement: Bearings are mounted in the same direction. This arrangement is used to handle high axial loads in one direction.

3. Preloading Bearings

Preloading: Preloading is applying a predetermined axial load to the bearing to remove internal clearance. This is essential for high precision and rigidity.

Fixed Preload: Using spacers or shims to set the preload during installation.

Spring Preload: Using springs to maintain a constant preload regardless of temperature changes or other conditions.

4. Assembly Techniques

Pressing Method: Bearings are pressed onto the shaft or into the housing using specialized tools to ensure even pressure and avoid damaging the bearing.

Hydraulic Method: A hydraulic press or a hydraulic nut can be used to install bearings, providing controlled and uniform pressure.

Induction Heating: Induction heaters can expand the bearing seat, allowing the bearing to be slipped onto the shaft or into the housing easily. Once cooled, it creates a tight fit.

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For more detailed information on angular contact ball bearing installation methods, please click here: https://www.lkwebearing.com/news-center/angular-contact-bearing-installation.html

A rotary table bearing, often used in applications requiring precision rotation, such as machine tools and rotary tables, has a specialized structure to support and facilitate smooth rotational movement. Here is an overview of the key components and structure of a rotary table bearing.

1. Bearing Type

Rotary table bearings are typically cross-roller bearings or YRT (Yaw and Roll Table) bearings, designed to handle axial, radial, and moment loads simultaneously.

2. Components and Structure

Inner and Outer Rings:

Inner Ring: Mounted on the stationary part of the rotary table, providing the raceway for the rolling elements.

Outer Ring: Attached to the rotating part of the table, also serving as a raceway for the rolling elements.

Rolling Elements:

Cross-Roller Bearings: Use cylindrical rollers arranged perpendicular to each other in a cross pattern, which allows them to handle high axial and radial loads as well as tilting moments.

YRT Bearings: Comprise an axial needle roller and cage assembly, a radial cylindrical roller, and two axial cylindrical roller and cage assemblies, ensuring high rigidity and precision.

Cage:

Holds and guides the rolling elements, ensuring they remain evenly spaced and reducing friction.

Seals:

Installed on both sides of the bearing to prevent contamination and retain lubrication, enhancing the bearing’s lifespan and performance.

Preload Adjustment:

Many rotary table bearings come with a mechanism to adjust preload, ensuring optimal stiffness and minimizing deflection during operation.

3. Design Features

High Precision: Designed to maintain accurate positioning with minimal deflection, crucial for precision applications like CNC machines and indexing tables.

High Load Capacity: Capable of supporting heavy axial, radial, and moment loads due to the robust design and high number of rolling elements.

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For more detailed information about the rotary table bearing structure, please click here: https://www.boyingbearing.com/en/a/news/rotary-table-bearing-structure.html

The welding process for wind tower construction is critical for ensuring the structural integrity and longevity of the towers. Here is an overview of the main steps involved in the wind tower welding process.

Wind tower welding process

Material Preparation

Cutting: The steel plates used for wind towers are cut to size using methods like plasma cutting, laser cutting, or oxy-fuel cutting.

Edge Preparation: The edges of the steel plates are beveled to prepare them for welding. This helps ensure strong and consistent welds.

Plate Rolling

Rolling: The cut and prepared steel plates are rolled into cylindrical or conical sections. Rolling is done using plate rolling machines to achieve the desired curvature and diameter.

Tack Welding

Alignment: The rolled plates are aligned and held in place using fixtures.

Tack Welding: Small welds are made at intervals to hold the sections together temporarily before the final welding. Tack welds ensure that the plates remain properly aligned.

Root Pass Welding

Root Pass: The first pass, or root pass, is performed to join the plates from the inside. This pass is crucial as it forms the foundation of the weld. It is usually done using a welding process like Gas Tungsten Arc Welding (GTAW) or Shielded Metal Arc Welding (SMAW).

Fill and Cap Pass Welding

Filling: Subsequent passes are made to fill the groove created by the beveled edges. Multiple passes are required to fill the joint completely.

Capping: The final pass, known as the cap pass, is done to create a smooth and even surface on the weld. This pass also enhances the weld’s appearance and ensures it meets quality standards.

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For more detailed information about wind tower welding process, please click here: https://www.bota-weld.com/en/a/news/wind-tower-welding-process.html