CN103672925A

CN103672925A - Hearth soot blower

Info

Publication number: CN103672925A
Application number: CN201210331920.2A
Authority: CN
Inventors: 徐贤辉; 王军; 张发
Original assignee: HUBEI HUAXIN MACHINERY DEVELOPMENT Co Ltd
Current assignee: HUBEI HUAXIN MACHINERY DEVELOPMENT Co Ltd
Priority date: 2012-09-10
Filing date: 2012-09-10
Publication date: 2014-03-26

Abstract

A hearth soot blower is composed of a rack (1), a motor (2), an output shaft A (3), a gear A (4), a gear B (5), a threaded pipe (6), a cam (7), a guide rod (8), a starting arm (9), an output shaft B (10), a lifting valve (11), a sprayer (12) and a limiting switch (13). The hearth soot blower has the advantages that a gooseneck valve of the hearth soot blower is replaced with the long telescopic lifting valve, a valve opening mechanism is improved, the hearth soot blower is controlled to retreat in place through the contact of the limiting switch and the cam, and it is guaranteed that the hearth soot blower operates normally and safely.

Description

A kind of soot blower for boiler hearth

Technical field

The present invention relates to boiler sootblower field, be specifically related to a kind of soot blower for boiler hearth.

Background technology

At present, the gooseneck valve of soot blower for boiler hearth more complicated in its manufacture craft, difficulty is large; Between the output shaft of soot blower for boiler hearth and motor shaft, with resilient key, be connected and fixed, after soot blower for boiler hearth motor operating overload, resilient key is cut off, and control system still shows, soot blower for boiler hearth normal operation in fact gun barrel does not retreat and puts in place, its gooseneck valve is appointed in opening valve state, nozzle purges continuously in any in boiler, until a whole set of soot blower system operation is complete, can cause heating surface impaired or occur booster situation.

Summary of the invention

Object of the present invention is exactly the gooseneck valve more complicated in its manufacture craft for current soot blower for boiler hearth, and difficulty is large; Between the output shaft of soot blower for boiler hearth and motor shaft, with resilient key, be connected and fixed, after soot blower for boiler hearth motor operating overload, resilient key is cut off, and control system still shows, soot blower for boiler hearth normal operation in fact gun barrel does not retreat and puts in place, its gooseneck valve is appointed in opening valve state, and nozzle purges continuously in any in boiler, until the operation of a whole set of soot blower system is complete, can cause heating surface impaired or occur the deficiency of booster situation, and a kind of soot blower for boiler hearth is provided.

The present invention is by frame, motor, A output shaft, A gear, B gear, screwed pipe, cam, guide post, start arm, B output shaft, lift valve, shower nozzle and limit switch form, motor is arranged in frame, the power output shaft of motor is connected with one end transmission of A output shaft, on A gear, have A output shaft installing hole, A gear set is at the A output shaft other end, on B gear, have screwed pipe installing hole, B gear set is in screwed pipe one end, A gear is connected by gear drive with B gear, screwed pipe two ends are movably arranged on respectively in frame, on cam, have internal thread hole, and match with the external screw thread screw thread on screwed pipe, cam is sleeved on screwed pipe, on cam, have groove, guide post is arranged on frame, and be positioned at the groove of cam, B output shaft is arranged in frame, be positioned at screwed pipe top, start arm one end is connected with B output shaft, the start arm other end and guide post lay respectively at the both sides of frame, lift valve is arranged in frame, B output shaft one end is connected with lift valve transmission by briquetting, the port of export of lift valve communicates with screwed pipe one end by inner tube, shower nozzle one end communicates with the screwed pipe other end, limit switch is arranged in frame, and the signal output part of limit switch is electrically connected to the power supply of motor.

Advantage of the present invention is: the gooseneck valve of soot blower for boiler hearth is changed to long Expansible carrying lift valve, improve valve-opening mechanism, realize with limit switch, contacting to control soot blower for boiler hearth with cam and retreat to put in place and guarantee that soot blower for boiler hearth safety normally moves.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Fig. 2 is Fig. 1 plan structure schematic diagram.

The specific embodiment

As shown in Figure 1, the present invention is by frame 1, motor 2, A output shaft 3, A gear 4, B gear 5, screwed pipe 6, cam 7, guide post 8, start arm 9, B output shaft 10, lift valve 11, shower nozzle 12 and limit switch 13 form, motor 2 is arranged in frame 1, the power output shaft of motor 2 is connected with the 3 one end transmissions of A output shaft, on A gear 4, have A output shaft 3 installing holes, A gear 4 is sleeved on A output shaft 3 other ends, on B gear 5, have screwed pipe 6 installing holes, B gear 5 is sleeved on screwed pipe 6 one end, A gear 4 is connected by gear drive with B gear 5, screwed pipe 6 two ends are movably arranged on respectively in frame 1, on cam 7, have internal thread hole, and match with the external screw thread screw thread on screwed pipe 6, cam 7 is sleeved on screwed pipe 6, on cam 7, have groove, guide post 8 is arranged on frame 1, and be positioned at the groove of cam 7, B output shaft 10 is arranged in frame 1, be positioned at screwed pipe 6 tops, start arm 9 one end are connected with B output shaft 10, start arm 9 other ends and guide post 8 lay respectively at the both sides of frame 1, lift valve 11 is arranged in frame 1, B output shaft 10 one end are connected with lift valve 11 transmissions by briquetting, the port of export of lift valve 11 communicates with screwed pipe 6 one end by inner tube, shower nozzle 12 one end communicate with screwed pipe 6 other ends, limit switch 13 is arranged in frame 1, and the signal output part of limit switch 13 is electrically connected to the power supply of motor 2.

Working method: starter motor 2, drive A output shaft 3 to rotate, by A gear 4, drive B gear 5 to rotate, drive screwed pipe 6 to rotate, cam 7 is moved forward on screwed pipe 6 along guide post 8 directions, when the groove of cam 7 and guide post 8 depart from, cam 7 rotates with screwed pipe 6, and stir start arm 9, drive B output shaft 10 to rotate, the briquetting of B output shaft 10 one end is pressed on the valve rod of lift valve 11, open valve, soot blower starts to purge, otherwise when cam 7 moves on screwed pipe 6 backward along guide post 8 directions, after bumping with eye bit switch 13 when cam 7 rear ends, limit switch 13 will be controlled motor 2 power supplys, powered-down, motor 2 is quit work.

Claims

1. a soot blower for boiler hearth, it is characterized in that it is by frame (1), motor (2), A output shaft (3), A gear (4), B gear (5), screwed pipe 6, cam (7), guide post (8), start arm (9), B output shaft (10), lift valve (11), shower nozzle (12) and limit switch (13) form, motor (2) is arranged in frame (1), the power output shaft of motor (2) is connected with A output shaft (3) one end transmission, on A gear (4), have A output shaft (3) installing hole, A gear (4) is sleeved on A output shaft (3) other end, on B gear (5), have screwed pipe (6) installing hole, B gear (5) is sleeved on screwed pipe (6) one end, A gear (4) is connected by gear drive with B gear 5, screwed pipe (6) two ends are movably arranged on respectively in frame (1), cam has internal thread hole on (7), and match with the external screw thread screw thread on screwed pipe (6), cam (7) is sleeved on screwed pipe (6), cam has groove on (7), guide post (8) is arranged on frame (1), and be positioned at the groove of cam (7), B output shaft (10) is arranged in frame (1), be positioned at screwed pipe (6) top, start arm (9) one end is connected with B output shaft (10), start arm (9) other end and guide post (8) lay respectively at the both sides of frame (1), lift valve (11) is arranged in frame (1), B output shaft (10) one end is connected with lift valve (11) transmission by briquetting, the port of export of lift valve (11) communicates with screwed pipe (6) one end by inner tube, shower nozzle (12) one end communicates with screwed pipe (6) other end, limit switch (13) is arranged in frame (1), and the signal output part of limit switch (13) is electrically connected to the power supply of motor (2).