Core mould vibrating bar for core mould vibrating machine

Abstract

The present invention relates to a mandrel vibrating rod for mandrel vibrating machine, which comprises a pressure head cap, an eccentric block device, a central shaft, a sleeve, a locking shoe, a frame and a motor. At least two eccentric block devices pass through the central shaft and are connected inside of the sleeve, the sleeves are connected with each other by the locking shoes, the pressure head cap is arranged at the upper end of the sleeve, the sleeve is arranged vertically on the frame, the bottom of the frame is provided with at least one motor which is connected with the central shaft. The present invention has the advantages of prolonged service life, reduced accident rate, simple maintenance for motor, reduced maintenance costs, shorter time for exchanging fittings, simple disassembly, and reduced maintenance difficulty.

Description

technical field [0001] The invention relates to a core mold vibrating rod used in a core mold vibrating machine, which can be used for producing reinforced concrete drainage pipes and belongs to the technical field of core mold vibrating machines. Background technique [0002] The mandrel vibrating rod is the heart part of the mandrel vibrating machine. By adjusting the frequency of the motor, it generates vibrations with a controllable frequency, drives the vibration of the external mold, and makes the concrete in the mold dense, meeting the production technical requirements of the product. [0003] As shown in Figure 1, it is a schematic diagram of the structure of the German Zubrin core-mode vibrating core-mode vibrating rod, which consists of a locking block 1, a motor 2, an eccentric block 3, a column 4, and a platform 5. There are six motors 2, a total of 18 motors 2 drive the eccentric block 3 to rotate to generate vibration with a controllable frequency, and then dri...

AI Technical Summary

Problems solved by technology

[0004] 1. Since the mandrel is in the center of the product mold, when the motors are working at full load, the heat generated by the 18 motors cannot be fully dissipated, and the internal temperature is very high, resulting in deterioration of the working conditions of the motors and shortening their service life;

[0005] 2. Since the vibration source is synchronously driven by 18 motors through the coupling device, if one or several motors fail, it will cause the entire core mold vibrating machine to stop working, and the accident rate and maintenance rate are high;

[0006] 3. Every time a motor is damaged, it must be imported from abroad. There is no replaceable product in China. The cost of each motor is about 10,000 yuan. It costs about 500,000 yuan a year for this item alone, and the maintenance cost is high;

[0007] 4. Maintenance takes a long time and is difficult to maintain

Since the parts need to be imported from abroad, the waiting time for the parts is long, which affects the company's normal production arrangement, and the structure of the German mandrel is complicated and the disassembly procedures are cumbersome, which makes maintenance more difficult

And domestic similar products have not yet

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