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Automatic tightening device of belt conveyor

A technology of automatic tensioning device and belt conveyor, which is applied in the direction of conveyor, transportation and packaging, can solve the problems of small adjustment range, decreased belt tension, system leakage, etc., and achieves stable and adjustable tensioning speed, The effect of precise tension control and guaranteed response speed

Inactive Publication Date: 2005-03-23
TAIYUAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

But there are still many deficiencies: the hydraulic cylinder cannot have a large tensioning stroke due to structural limitations, so the adjustment range of this hydraulic cylinder tensioning device is small, and it is only suitable for short-distance belt conveyors; In a high-pressure state, the seal and hydraulic parts are damaged, the system leaks, and the belt tension drops sharply, slipping, wear and other accidents that affect safety in production; the hydraulic cylinder tensioning device cannot adjust the speed of tensioning the belt; if the electronic control If the device fails, the entire tensioning device will not work properly

Method used

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  • Automatic tightening device of belt conveyor

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Embodiment Construction

[0015] Force-measuring cylinder 11 is refitted from an ordinary single-acting piston cylinder. The oil inlet of the rodless chamber is blocked, and an air release valve is installed above the rodless chamber, while a pressure gauge joint is installed above the rod chamber. Release valve.

[0016] The shut-off valve 5 is connected with the oil inlet of the rod chamber of the dynamometer cylinder 11 through the pressure sensor 6, and the pressure gauge 13 is connected with the air release port of the rod chamber of the dynamometer cylinder. During belt tensioning and constant tension operation of the conveyor, the tension monitoring device provides real-time and accurate belt tension values, which are fed back to the electronic control device, and the control program controls the hydraulic device and hydraulic winch to achieve belt tensioning Precise adjustment of force.

[0017] The oil outlet of the hydraulic pump 2 is connected to the tension monitoring device, the rod cavit...

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Abstract

An automatic tensioning device for belt conveyor is suitable for long-range covneyor or a rubber belt conveyer, of which belt has a large extension rate. It achieves a large regulative range, an accurate control of tension force, and stable adjustment. The system consists of a tension monitor, a hydraulic device and a hydraulic hoist. The tension monitor comprises a detecting cylinder, a pressure sensor, a shutoff valve and a pressure meter. The hydraulic device comprises a pump, a reversing solenoid valve, a overflow valve, a manual valve, a hydraulic one-way valve, a proportional reversing valve, a one-way throttle valve, a one-way valve, a throttle valve, a tank, and oil-way. The outlet of the pump is respectively connected with the tension monitor, the cylinder and the driving circuit of the hydraulic hoist via the one-way valve.

Description

technical field [0001] The invention relates to an automatic tensioning device for a belt conveyor, in particular to an automatic tensioning device which adopts a hydraulic winch to tension the belt. Background technique [0002] The belt tension control device is the main component of the belt conveyor. Its function is to ensure that the belt has sufficient tension when the conveyor is working, and to ensure that there is a gap between the belt and the drive roller during starting, braking and normal operation. The required friction without slipping, and at the same time limit the sag of the tape between the supporting rollers to prevent the tape from spilling. At present, most of the belt conveyor tensioning devices used in China use hydraulic cylinders as tensioning elements. Although this hydraulic cylinder tensioning device can adjust the tension of the belt, it can meet the tension required by the belt during starting, braking and normal working conditions. Different ...

Claims

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Application Information

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IPC IPC(8): B65G23/44
Inventor 寇子明马秦真高贵军李元元卫进吕海军郝俊青
Owner TAIYUAN UNIV OF TECH
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