CNA - The Clamp Connection of Belt Conveyor - Google Patents

The clamp connection of the belt conveyor

Information

Publication number

CNA

Authority

CN

China

Prior art keywords

screw

belt

spring

drip molding

cavity

Prior art date

-12-13

Legal status

Granted

Application Number

CNA

Other languages

Chinese (zh)

Other Versions

CNC (en)

Inventor

H·''''

Current Assignee

Aumund Fordererbau GmbH and Co KG Maschinenfabrik

Original Assignee

Aumund Fordererbau GmbH and Co KG Maschinenfabrik

Priority date

-12-13

Filing date

-12-13

Publication date

-07-29

Links

• Espacenet
• Global Dossier
• Discuss

Images

Classifications

• F'MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16'ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16G'BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
  • F16G3/00'Belt fastenings, e.g. for conveyor belts
  • F16G3/06'Belt fastenings, e.g. for conveyor belts with outwardly-bent, mutually-connected belt ends

Abstract

This invention relates to a mechanical grip for attaching the ends of conveyor belts, enabling the creation of an endless belt. It is specifically adapted to belt elevators where the ends of the belt curve out from the plane of the conveyor belt and are clamped by frictional forces between profiled members. These profiled members are secured by at least one screw, which maintains pretension and passes through the profiled members positioned at both sides of the belt. This arrangement enhances resistance to slippage of the belt ends. The invention employs a preload spring to improve performance, positioned between the screw member (screw head 18 and nut 19) and the drip moldings (15, 16).

Description

The clamp connection of the belt conveyor is designed to attach the ends of the conveyor belt, making it into a continuous loop. This system is particularly well-suited for belt elevators in which the ends of the belts extend outward from the conveyor's movement plane and are frictionally clamped by at least two drip moldings that secure the belt conveyor. These drip moldings connect via at least one screw, ensuring a secure fit, with the screw passing through the drip molding positioned on either side of the conveyor belt.

Previously described clamping mechanisms highlight a common issue where rubber or plastic deformation occurs between the drip moldings, leading to reduced securing power and potential slippage if not monitored. Therefore, an earlier publication proposed a tensioning monitoring device that uses a trigger signal switch when tension force drops. However, this device is often bulky, challenging to install and lacks operational reliability.

The objective of the present invention is to provide a tightening mechanism that allows for the easy detection of reduced securing power and simplifies the tightening process of the securing components.

The core of the invention features a spring positioned between the screw head and/or nut and the drip molding. This spring prevents weakening of tightening power and maintains a strong holding state.

The clamping connection includes two side-by-side screw elements on the conveyor belt ends bending direction, with options to install an additional spring. According to the embodiment, only a screw connection equipped with a compression spring at each end is necessary.

These compression springs are preferably cup springs or suitable spiral springs, housed in cavities located in the drip moldings to protect from potential debris.

Additionally, the design allows for a distance sleeve between screws and drip moldings, creating an auxiliary cavity for spring housing. To further enhance design, a packing ring, larger in diameter than the spring cavity, can support the compression spring and ensure that the screw elements do not enter the cavity.

Utilizing the packing ring enables initial tightening without requiring special torque devices, allowing for immediate securing power. The design also prevents the introduction of dirt or debris due to a shoulder projection that seals the cavity from external environments.

Examples of the Invention

The following examples outline the operational effectiveness of the clamp connection in various applications. Conveyor belt ends protruding from the movement plane are held firmly together using mid-section members to facilitate the engagement of the conveyor belt ends. The provided drip moldings ensure that the bending edges of the conveyor belts transition smoothly into a straight line, working harmoniously within the operational plane of the conveyor.

Types of Conveyor Belt Joins

To discover more, please visit our website SINODA. Conveyor belts are widely utilized in diverse industries for transporting goods, materials, and products. The process of joining or repairing conveyor belts includes techniques such as cold splicing, hot splicing, or using mechanical belt fasteners.

Hot Splicing:

This method employs heat to bond conveyor belt ends with a special rubber material. Such a splice typically yields a robust join that is almost unbreakable, facilitating quick usage after completion. Hot splicing can pose challenges on mobile equipment, but methods have been developed to adapt this process effectively for various applications.

Advantages:

Hot splicing provides the strongest and most durable connection between belt ends, minimizing downtime.

Disadvantages:

Achieving a flawless hot splice often necessitates experienced personnel, which some teams may lack.

Cold Splicing:

This method does not require heat, relying instead on a cold adhesive to bond belt ends. It can create a very strong join; however, it typically involves downtime for the adhesive to cure properly.

Advantages:

Cold splicing is convenient and manageable by many teams.

Disadvantages:

It necessitates more downtime for safe completion compared to hot splicing.

Clips or Mechanical Fasteners:

This method involves mechanically fastening clips to the ends of the conveyor belts. It allows for quick installations, manageable by minimally trained crews.

Advantages:

Mechanical fasteners are quick to install and don't require special tools.

Disadvantages:

There can be significant variability in cost and ease of installation.

The choice of joining method should consider the application specifics, conveyor belt type, and material to be transported. For more tailored recommendations, consult our 24/7 service team. We provide a wide range of belts and can perform all methods of belt joining.

If you want to learn more, please visit Customized conveyor line solutions.