CN102328181A

CN102328181A - Damping roller frame for welding boiler barrel

Info

Publication number: CN102328181A
Application number: CN201110060605A
Authority: CN
Inventors: 顾芳伟
Original assignee: Wuxi Huaguang Boiler Co Ltd
Current assignee: Wuxi Huaguang Boiler Co Ltd
Priority date: 2011-03-14
Filing date: 2011-03-14
Publication date: 2012-01-25

Abstract

The invention provides a damping roller frame for a welding boiler barrel, wherein the damping roller frame can be used for effectively regulating a gap between a worm gear and a worm after the worm gear and worm move for a period of time, so as to reduce the oscillations of a barrel shell and guarantee the qualified condition of a welding seam. The damping roller frame comprises a driving roller frame and a driven roller frame and is characterized in that two sides of an outer shell of a ring-surface enveloping worm and worm gear reducer casing are provided with bearing blocks, casing oblong holes are formed at the two sides of the outer shell of the ring-surface enveloping worm and worm gear reducer casing, a worm penetrates through the casing oblong holes, vertical oblong holes are formed on the side parts of the bearing blocks, a fastening bolt penetrates through the oblong holes and is fastened and connected with the bearing blocks and the ring-surface enveloping worm and worm gear reducer casing, two ends of he worm are sleeved in bearings and then respectively supported in the bearing blocks, bottom plates at two sides of the outer shell of the ring-surface enveloping worm and worm gear reducer casing are provided with adjusting screws capable of being adjusted up and down, and the tops of the adjusting screws are arranged at the bottom of the bearing blocks in an ejection manner.

Description

Be used to weld the damping turning rolls of drum

Technical field

The present invention relates to the worker packing technique field of boiler drum, be specially the damping turning rolls that is used to weld drum.

Background technology

In the boiler drum manufacture process, drum is formed by more piece barrel shell assembly unit girth weld.The single-unit barrel shell be with steel plate after rolling on the large-scale veneer reeling machine, fill the welding of remaining vertical masonry joint and accomplish again.The conventional method of drum splicing is to weld welding on turning rolls inside and outside circumferential weld in back to two joint barrel shell alignment, point, and this welding method is fairly simple, and is easy to operate.

Existing turning rolls adopts the worm reduction box structure, must have big gap between the operation rear worm wheel worm screw through a period of time, when two joint barrel shell splicings; Because barrel shell has had straight weld and weld seam evagination in the outer round surface of barrel shell; In the process that barrel shell rotates on turning rolls, the straight weld of evagination can make the stressed generation of turning rolls change suddenly, because bigger gap between worm and gear; Worm and gear meeting reverse rotation has caused the vibrations and the pause of barrel shell; The welding job of this moment since barrel shell unstability cause the defective of weld seam easily, in order to reduce or avoid the vibrations of barrel shell as far as possible, improving welding tooling is present active demand.

Summary of the invention

To the problems referred to above, the invention provides the damping turning rolls that is used to weld drum, it is the gap between adjustment movement a period of time rear worm wheel worm screw effectively, thereby reduces the vibrations of barrel shell, guarantees the qualified of weld seam.

Be used to weld the damping turning rolls of drum; Its technical scheme is such: it comprises active roller frame, return idler frame; Said active roller frame comprises base, and the both sides of said base are fastened with roller mount respectively, and active roller is installed on respectively in the corresponding said roller mount; Said active roller is set with in the exposed junction of the worm screw of the ring surface enveloped worm gear of correspondence; The output shaft of frequency control motor connects the worm gear of corresponding said ring surface enveloped worm gear, and it is characterized in that: the shell both sides of said ring surface enveloped worm gear are equipped with bearing block, and the shell both sides of said ring surface enveloped worm gear have the casing slotted hole; Said worm screw is run through said casing slotted hole; Said bearing block sidepiece have vertically to slotted hole, fastening bolt passes said slotted hole and is fastenedly connected bearing block, ring surface enveloped worm gear, is supported on said bearing block respectively behind the bearing set of said worm screw two ends; But the both sides base plate of the shell of said ring surface enveloped worm gear is equipped with the adjustment screw of up-down adjustment, and the top of said adjustment screw is mounted on said bearing block bottom.

After adopting structure of the present invention, there is certain interval between operation rear worm wheel worm screw, unclamps fastening bolt through a period of time; Regulate the adjustment screw, make that the gap between worm and gear is very little, tighten fastening bolt then; In the process that barrel shell rotates on turning rolls, the straight weld of evagination can make the stressed generation of turning rolls change suddenly, because the gap between worm and gear is very little; Pretightning force makes that worm and gear can reverse rotation, thereby reduces the vibrations of barrel shell, guarantees the qualified of weld seam.

Description of drawings

Fig. 1 is a front view structural representation of the present invention;

Fig. 2 is the right view structural representation of Fig. 1;

Fig. 3 is the structural representation of ring surface enveloped worm gear of the present invention;

Fig. 4 is the left view structural representation of Fig. 3.

The specific embodiment

See Fig. 1, Fig. 2, Fig. 3, Fig. 4; It comprises active roller frame 1, return idler frame 2; Active roller frame 1 comprises base 3, and the both sides of base 3 are fastened with roller mount 4 respectively, and active roller 5 is installed on respectively in the corresponding roller mount 4; Active roller 5 is set with in the exposed junction of the worm screw 7 of the ring surface enveloped worm gear 6 of correspondence; The output shaft of frequency control motor 8 connects the worm gear 9 of corresponding ring surface enveloped worm gear 6, and the shell both sides of ring surface enveloped worm gear 6 are equipped with bearing block 10, and the shell both sides of ring surface enveloped worm gear 6 have casing slotted hole 16; Worm screw 7 is run through casing slotted hole 16; Bearing block 10 sidepieces have vertically to slotted hole 11, fastening bolt 12 passes slotted hole 11 and is fastenedly connected bearing block 10, ring surface enveloped worm gear 6, is supported on bearing block 10 respectively behind the worm screw 7 two ends bearing sets 12; But the both sides base plate of the shell of ring surface enveloped worm gear 6 is equipped with the adjustment screw 13 of up-down adjustment, and the top of adjustment screw 13 is mounted on bearing block 10 bottoms.14 is that barrel shell circumferential weld, 15 is barrel shell surface straight weld among the figure.

Claims

1. be used to weld the damping turning rolls of drum; It comprises active roller frame, return idler frame; Said active roller frame comprises base, and the both sides of said base are fastened with roller mount respectively, and active roller is installed on respectively in the corresponding said roller mount; Said active roller is set with in the exposed junction of the worm screw of the ring surface enveloped worm gear of correspondence; The output shaft of frequency control motor connects the worm gear of corresponding said ring surface enveloped worm gear, and it is characterized in that: the shell both sides of said ring surface enveloped worm gear are equipped with bearing block, and the shell both sides of said ring surface enveloped worm gear have the casing slotted hole; Said worm screw is run through said casing slotted hole; Said bearing block sidepiece have vertically to slotted hole, fastening bolt passes said slotted hole and is fastenedly connected bearing block, ring surface enveloped worm gear, is supported on said bearing block respectively behind the bearing set of said worm screw two ends; But the both sides base plate of the shell of said ring surface enveloped worm gear is equipped with the adjustment screw of up-down adjustment, and the top of said adjustment screw is mounted on said bearing block bottom.