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Double-inlet and double-outlet steel ball coal mill screw propeller support rod loading device

A steel ball coal mill and screw propeller technology, applied in the field of coal mill accessories, can solve the problems of double-inlet and double-outlet steel ball coal mill support rod breakage, etc., to avoid shear force, avoid breakage, and compensate for manufacturing and installation effect of error

Active Publication Date: 2017-02-01
上海电气上重碾磨特装设备有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is to provide a double-inlet and double-outlet steel ball coal mill screw propeller support rod loading device, which can solve the problem of double-inlet and double-outlet steel ball coal mill support rod breakage

Method used

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  • Double-inlet and double-outlet steel ball coal mill screw propeller support rod loading device
  • Double-inlet and double-outlet steel ball coal mill screw propeller support rod loading device
  • Double-inlet and double-outlet steel ball coal mill screw propeller support rod loading device

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Embodiment Construction

[0043] Such as figure 2 As shown, the double-inlet and double-outlet steel ball mill screw propeller support rod loading device of the present invention includes a support rod 1, and the support rod 1 is in the shape of a ladder; The seat cover 8 forms a cavity; the upper end of the support rod 1 (the left end in the figure) is fixedly connected to the lining plate 23, the outside of the spring seat 5 is fixedly connected to the central tube 26, and the lower end of the support rod 1 extends into the central tube 26;

[0044] The spring 6 is sleeved on the support rod 1, and the spring 6, the spring upper pressure sleeve 4, and the spring lower pressure sleeve 7 are located in the cavity formed by the spring seat 5;

[0045] The upper end of the spring seat 5 is connected to the large end of the support rod 1 through the copper sleeve 3 on the double arc surface; the outer side of the spring seat 5 is provided with a sealing cover 2, and the sealing cover 2 is fixedly connect...

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Abstract

The invention discloses a loading device for a supporting rod of a spiral propeller of a double-in and double-out steel-ball coal mill. The loading device comprises a supporting rod, wherein a spring seat is movably arranged on the supporting rod in a sheathed manner, and the spring seat and a spring seat cover form a cavity body; a spring, a spring upper-pressing sleeve and a spring lower-pressing sleeve are positioned in the cavity body; the fixing between the spring lower-pressing sleeve and the supporting rod is realized by a locking nut; and a thread hole is formed in the lower end surface of the supporting rod and is used for connecting a loading screw rod of a hydraulic pre-loading device. The loading device disclosed by the invention has the advantages that the supporting rod can move axially by extension or compression of the spring so as to compensate the displacement of a substrate and maintain jacking force; and simultaneously, the supporting rod can deflect by a certain angle so as to compensate manufacture and installation errors. The invention also discloses a hydraulic pre-loading device.

Description

technical field [0001] The invention relates to an accessory of a coal mill, in particular to a loading device for a support rod of a screw propeller of a double-inlet and double-outlet steel ball mill coal mill. The invention also relates to a hydraulic preloading device used for the supporting rod loading device of the screw propeller of the double-inlet and double-outlet steel ball coal mill. Background technique [0002] The double-inlet and double-outlet steel ball coal mill is used in the direct-blowing coal-fired pulverization system of thermal power plants. It has been widely used in recent years because of its characteristics of wide adaptability to coal types, high degree of automation, stable output and fineness, and easy maintenance and operation. use. [0003] The working principle of the double-inlet and double-outlet steel ball coal mill is as follows: the main motor drives the cylinder to rotate at a speed of 15-20r / min through the reducer and the open gear ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B02C17/18
CPCB02C17/18
Inventor 佟成功
Owner 上海电气上重碾磨特装设备有限公司
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