CN104674591A

CN104674591A - Papermaking machine guide roller

Info

Publication number: CN104674591A
Application number: CN201310619107.XA
Authority: CN
Inventors: 叶斌
Original assignee: Jiaxing City Keyes Communication Equipment Co Ltd
Current assignee: Jiaxing City Keyes Communication Equipment Co Ltd
Priority date: 2013-11-28
Filing date: 2013-11-28
Publication date: 2015-06-03

Abstract

The invention provides a papermaking machine guide roller, and belongs to the technical field of papermaking machinery. The papermaking machine guide roller solves the problem that a shaft head in an existing papermaking machine guide roller easily fractures. The papermaking machine guide roller comprises a cylindrical roller body and a shaft head penetrating the roller body. The roller body is made of thick-walled seamless steel pipes, bulkheads are embedded into two ends of the roller body, the shaft head is made of stainless steel materials, the bulkheads are in interference fit with the shaft head through oil pressure, the shaft head comprises a main roller, two ends of the main roller axially extend outwards to sequentially form a first neck, a second neck, an auxiliary roller and a mounting portion, bearings are mounted at the second neck and the mounting portion respectively, the external diameter of the roller body is 216mm, the internal diameter of the roller body is 195mm, the length of the roller body is 3000mm, the external diameter of the second neck is 60mm, and the external diameter of the first neck is 65mm. The papermaking machine guide roller has the advantages of simple structure, fine bending resistance and long service life.

Description

Paper machine deflector roll

Technical field

The invention belongs to papermaking equipment technical field, relate to a kind of deflector roll, particularly a kind of paper machine deflector roll.

Background technology

Deflector roll is a most typical rollers on paper machine, and purposes is divided into and leads blanket (net) roller and dancing roll two kinds, wherein dancing roll is made up of roll body and spindle nose.In actual applications, when the intensity of dancing roll roll body and spindle nose all meets the demands, but still can there is fracture accident in spindle nose, and reason here mainly stress is concentrated or sudden applied load causes.Because dancing roll adopts electronic tensioning mode; Tensity size can only lean on the experience of operator to infer; in adjustment process; often cause both sides tension force unstable, very likely cause tension force to exceed design load, be easy to like this to cause spindle nose to rupture; and dancing roll is operationally rotate; and be subject to tension force effect, so its stress be subject to is the alternate stress of symmetrical cycle, therefore dancing roll in use often there will be the phenomenon such as off-axis and roll breakage.

Summary of the invention

The object of the invention is to there are the problems referred to above for existing technology, propose that a kind of structure is simple, bending strength is large, the paper machine deflector roll of long service life.

Object of the present invention realizes by following technical proposal: a kind of paper machine deflector roll, comprise roll body cylindrically and the spindle nose running through roll body, it is characterized in that, described roll body adopts thick-walled seamless steel pipes make and be all inlaid with silently at roll body two ends, described spindle nose adopts stainless steel material to make and described silently being connected by oil pressure interference fit with spindle nose, described spindle nose is made up of home roll portion, and two ends, home roll portion stretch out all vertically and have the first neck successively, second neck, secondary roller portion and installation portion, bearing is separately installed with at the second neck and installation portion place, described outside diameter of barrel is 216mm, roll body internal diameter is 195mm, barrel length is 3000mm, second neck external diameter is 60mm, first neck external diameter is 65mm.

In above-mentioned paper machine deflector roll, roll body inwall has annular convex shoulder, roll body both ends of the surface are all provided with end cap and described end cap lateral wall flushes with roll body lateral wall, described silently one end is resisted against on annular convex shoulder, and the other end is connected by screw and end cap.

In above-mentioned paper machine deflector roll, described silently on offer balance pipe, and in balance pipe, be inserted with the haltere that diameter and balance pipe aperture match.

In above-mentioned paper machine deflector roll, described silently on offer correction hole, the axial line of described correction hole axial line, the axial line of balance pipe and spindle nose is in the same plane, and described correction hole aperture is greater than the aperture of balance pipe, and the length of correction hole is less than the length of balance pipe.

In above-mentioned paper machine deflector roll, described silently goes up the passage also offering and communicate with balance pipe, and described passage and balance pipe concentric are arranged and the aperture of passage is greater than the aperture of balance pipe.

In above-mentioned paper machine deflector roll, the port of balance pipe is opened in silently in end face outside, and the port of passage is opened in and silently inner side end is formed with an internal diameter and is greater than passage aperture and in trumpet-shaped expansion mouth in the port of passage.

Compared with prior art, the present invention is by adopting thick-walled seamless steel pipes to make roll body and adopting stainless steel material to make spindle nose, under the prerequisite ensureing roll body and spindle nose intensity, increase the external diameter at spindle nose second neck place, the second neck external diameter is made to reach 60mm, the external diameter reduced between the first neck and the second neck is poor, thus improves the bending strength of spindle nose, extends the service life of deflector roll; Make silently only need offer a balance pipe by correction hole simultaneously, the position of correction hole, aperture and length according to fabrication design reasonable during dynamic balance calibration, can avoid and silently going up the problem that when once property is offered two balance pipes and causes at actual dynamic balance calibration, calibration accuracy is low.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

In figure, 1, roll body; 11, annular convex shoulder; 2, spindle nose; 21, home roll portion; 22, the first neck; 23, the second neck; 24, secondary roller portion; 25, installation portion; 3, silently; 31, balance pipe; 32, correction hole; 33, passage; 33a, expansion mouth; 4, bearing; 5, end cap; 6, haltere.

Detailed description of the invention

Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.

As shown in Figure 1, this paper machine deflector roll comprises roll body 1 cylindrically and runs through the spindle nose 2 of roll body 1, and wherein roll body 1 adopts thick-walled seamless steel pipes to make, spindle nose 2 adopts stainless steel material to make, roll body 1 external diameter is 216mm, and roll body 1 internal diameter is 195mm, and roll body 1 length is 3000mm.

Spindle nose 2 is made up of home roll portion 21, and two ends, home roll portion 21 stretch out all vertically and have the first neck 22 successively, second neck 23, secondary roller portion 24 and installation portion 25, bearing 4 is separately installed with at the second neck 23 and installation portion 25 place, second neck 23 external diameter is 60mm, first neck 22 external diameter is 65mm, because bearing 4 is arranged on the second neck 23 and installation portion 25 place, operationally, second neck 23 is fixed by bearing 4, when deflector roll rotation work, the gravity of roll body 1 self and suffered tension force are all evenly distributed on roll body 1, also be applied to main shaft part and first neck 22 place of spindle nose 2 simultaneously, the stress suffered by junction now between the first neck 22 and the second neck 23 is larger, by increasing the external diameter at spindle nose 2 second neck 23 place, the external diameter reduced between the first neck 22 and the second neck 23 is poor, thus improve the bending strength of spindle nose 2, extend the service life of deflector roll.

All be inlaid with silently 3 at roll body 1 two ends, silently 3 are connected by oil pressure interference fit with spindle nose 2.Roll body 1 inwall has annular convex shoulder 11, roll body 1 both ends of the surface are all provided with end cap 5 and end cap 5 lateral wall flushes with roll body 1 lateral wall, silently 3 one end are resisted against on annular convex shoulder 11, the other end is connected by screw and end cap 5, make silently 3 to be axially limited in roll body 1 by annular convex shoulder 11 and end cap 5, prevent from silently 3 detaching roll body 1 at work.

Further, silently offer balance pipe 31 on 3, and in balance pipe 31, be inserted with the haltere 6 that diameter and balance pipe 31 aperture match.Haltere 6 is inserted in test the dynamic balancing of deflector roll in balance pipe 31, ensures deflector roll stability in use.

Further, silently offer correction hole 32 on 3, the axial line of correction hole 32 axial line, balance pipe 31 and the axial line of spindle nose 2 in the same plane, and correction hole 32 aperture is greater than the aperture of balance pipe 31, and the length of correction hole 32 is less than the length of balance pipe 31.When carrying out dynamic balance calibration to deflector roll, first haltere 6 is beated in in balance pipe 31, correction hole 32 is formed again in duplicate removal of silently holing on 3, ensure deflector roll stability operationally, silently 3 need are made to offer a balance pipe 31 by correction hole 32, the position of correction hole 32, aperture and length can according to fabrication designs reasonable during dynamic balance calibration, avoid the problem that calibration accuracy is low when silently once property is offered two balance pipes 31 and causes at actual dynamic balance calibration on 3.The axial line of correction hole 32 axial line, balance pipe 31 and the axial line of spindle nose 2 are designed in the same plane simultaneously, ensure the accuracy when dynamic balance calibration.

Further, silently also offer the passage 33 communicated with balance pipe 31 on 3, described passage 33 is arranged with balance pipe 31 concentric and the aperture of passage 33 is greater than the aperture of balance pipe 31.Deflector roll can produce heat in the course of the work, this thermal release can be gone out by passage 33.

Further, the port of balance pipe 31 is opened in silently in 3 end face outside, and the port of passage 33 is opened in and silently 3 inner side ends is formed with an internal diameter and is greater than passage 33 aperture and in trumpet-shaped expansion mouth 33a in the port of passage 33.The radiating effect of passage 33 can be accelerated by expansion mouth 33a, the heat that deflector roll is produced in the course of the work you can discharge fast.

Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.

Claims

1. a paper machine deflector roll, comprise roll body cylindrically and the spindle nose running through roll body, it is characterized in that, described roll body adopts thick-walled seamless steel pipes make and be all inlaid with silently at roll body two ends, described spindle nose adopts stainless steel material to make and described silently being connected by oil pressure interference fit with spindle nose, described spindle nose is made up of home roll portion, and two ends, home roll portion stretch out all vertically and have the first neck successively, second neck, secondary roller portion and installation portion, bearing is separately installed with at the second neck and installation portion place, described outside diameter of barrel is 216mm, roll body internal diameter is 195mm, barrel length is 3000mm, second neck external diameter is 60mm, first neck external diameter is 65mm.

2. paper machine deflector roll according to claim 1, it is characterized in that, roll body inwall has annular convex shoulder, roll body both ends of the surface are all provided with end cap and described end cap lateral wall flushes with roll body lateral wall, described silently one end is resisted against on annular convex shoulder, and the other end is connected by screw and end cap.

3. paper machine deflector roll according to claim 1 and 2, is characterized in that, described silently on offer balance pipe, and in balance pipe, be inserted with the haltere that diameter and balance pipe aperture match.

4. paper machine deflector roll according to claim 3, it is characterized in that, described silently on offer correction hole, the axial line of described correction hole axial line, the axial line of balance pipe and spindle nose is in the same plane, and described correction hole aperture is greater than the aperture of balance pipe, the length of correction hole is less than the length of balance pipe.

5. paper machine deflector roll according to claim 3, is characterized in that, described silently goes up the passage also offering and communicate with balance pipe, and described passage and balance pipe concentric are arranged and the aperture of passage is greater than the aperture of balance pipe.

6. paper machine deflector roll according to claim 5, it is characterized in that, the port of balance pipe is opened in silently in end face outside, and the port of passage is opened in and silently inner side end is formed with an internal diameter and is greater than passage aperture and in trumpet-shaped expansion mouth in the port of passage.