CN203602960U

CN203602960U - Paper machine guide roller

Info

Publication number: CN203602960U
Application number: CN201320766819.XU
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: 2014-05-21
Anticipated expiration: 2023-11-28

Abstract

The utility model provides a paper machine guide roller, and belongs to the technical field of paper machines. The paper machine guide roller solves the problem that shaft heads of an existing paper machine guide roller are prone to breakage. The paper machine guide roller comprises a cylindrical roller body and shaft heads penetrating through the roller body, the roller body is made of a thick-wall seamless steel tube, choke plugs are inlaid at the two ends of the roller body, the shaft heads are made of stainless steel materials, the choke plugs are connected with the shaft heads in an oil pressure interference fit mode, the shaft heads are composed of main roller parts, the two ends of the main roller parts outwards extend in the axial direction to sequentially form first neck portions, second neck portions, auxiliary roller portions and installation portions, bearings are installed at the second neck portions and the installation portions respectively, the outer diameter of the roller body is 216 mm, the inner diameter of the roller body is 195 mm, the length of the roller body is 3000 mm, the outer diameters of the second neck portions are 60 mm, and the outer diameters of the first neck portions are 65 mm. The paper machine guide roller has the advantages of being simple in structure, good in bending resistance and long in service life.

Description

Paper machine deflector roll

Technical field

The utility model belongs to papermaking equipment technical field, relates 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, is divided into and leads two kinds of blanket (net) roller and dancing rolls in purposes, and wherein dancing roll is made up of roll body and spindle nose.In actual applications, in the case of 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 the reason is here mainly that stress is concentrated or sudden applied load causes.Because dancing roll is to adopt electronic tensioning mode; Tensity size can only lean on operator's experience to infer; in adjustment process; tend to cause both sides tension force unstable, very likely cause tension force to exceed design load, be easy to like this to cause spindle nose fracture; and dancing roll rotates in the time of operation; and be subject to tension force effect, so the alternate stress that its stress being subject to is 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 purpose of this utility model is to have the problems referred to above for existing technology, has proposed that a kind of simple in structure, bending strength is large, the paper machine deflector roll of long service life.

The purpose of this utility model can realize by following technical proposal: a kind of paper machine deflector roll, comprise the spindle nose that is roll body cylindraceous and run through roll body, it is characterized in that, described roll body adopts thick-walled seamless steel pipes to make and be all inlaid with silently at roll body two ends, described spindle nose adopts stainless steel material to make and described silently connecting by oil pressure interference fit with spindle nose, described spindle nose is made up of home roll portion, and home roll portion two ends all stretch out vertically the first neck successively, the second neck, secondary roller portion and installation portion, be separately installed with bearing 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, the second neck external diameter is 60mm, the first neck external diameter is 65mm.

In above-mentioned paper machine deflector roll, roll body inwall has annular convex shoulder, end cap is all installed in roll body both ends of the surface 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 offer balance pipe on silently, and in balance pipe, be inserted with the haltere that diameter and balance pipe aperture match.

In above-mentioned paper machine deflector roll, described offer correction hole on silently, described correction hole axial line, the axial line of balance pipe and the axial line of spindle nose are 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 going up also offers the passage communicating with balance pipe, and the aperture of described passage and the setting of balance pipe concentric and 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 on the end face of outside, and the port of passage is opened in silently on inner side end and is formed with an internal diameter in the port of passage and is greater than passage aperture and is trumpet-shaped expansion mouth.

Compared with prior art, the utility model is by adopting thick-walled seamless steel pipes to make roll body and adopting stainless steel material to make spindle nose, guaranteeing under the prerequisite of roll body and spindle nose intensity, increase the external diameter at spindle nose the second neck place, make the second neck external diameter reach 60mm, dwindle external diameter between the first neck and the second neck poor, thereby improve the bending strength of spindle nose, extend the service life of deflector roll; Make silently only need offer a balance pipe by correction hole simultaneously, reasonable fabrication design when position, aperture and the length of correction hole can be according to dynamic balance calibration, has avoided the low problem of calibration accuracy in the time silently going up once property and offer two balance pipes and cause at actual dynamic balance calibration.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

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.

The specific embodiment

Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.

As shown in Figure 1, this paper machine deflector roll comprises the spindle nose 2 that is roll body 1 cylindraceous and runs through 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 home roll portion 21 two ends all stretch out vertically the first neck 22 successively, the second neck 23, secondary roller portion 24 and installation portion 25, be separately installed with bearing 4 at the second neck 23 and installation portion 25 places, the second neck 23 external diameters are 60mm, the first neck 22 external diameters are 65mm, because bearing 4 is arranged on the second neck 23 and installation portion 25 places, in the time of work, the second neck 23 is fixed by bearing 4, in the time of deflector roll rotation work, gravity and the suffered tension force of roll body 1 self are all evenly distributed on roll body 1, also be applied to main shaft part and first neck 22 places of spindle nose 2 simultaneously, now the suffered stress in the junction between the first neck 22 and the second neck 23 is larger, by increasing the external diameter at spindle nose 2 second neck 23 places, dwindle external diameter between the first neck 22 and the second neck 23 poor, thereby 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 connect by oil pressure interference fit with spindle nose 2.On roll body 1 inwall, there is annular convex shoulder 11, end cap 5 and end cap 5 lateral walls are all installed in roll body 1 both ends of the surface to be flushed 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 at work roll body 1.

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 apertures match.Haltere 6 is inserted in balance pipe 31 so that the dynamic balancing of test deflector roll guarantees deflector roll stability in use.

Further, silently offer correction hole 32 on 3, the axial line of correction hole 32 axial lines, balance pipe 31 and the axial line of spindle nose 2 are in the same plane, and correction hole 32 apertures are greater than the aperture of balance pipe 31, and the length of correction hole 32 is less than the length of balance pipe 31.In the time that deflector roll is carried out to dynamic balance calibration, first haltere 6 is beated in to balance pipe 31, form correction hole 32 in the duplicate removal of silently holing on 3 again, guarantee the stability of deflector roll in the time of operation, make silently 3 need offer a balance pipe 31 by correction hole 32, reasonable fabrication design when position, aperture and the length of correction hole 32 can be according to dynamic balance calibration, has avoided the low problem of calibration accuracy in the time that silently once property is offered two balance pipes 31 and causes at actual dynamic balance calibration on 3.The axial line of the axial line of correction hole 32 axial lines, balance pipe 31 and spindle nose 2 is designed in the same planely simultaneously, guarantees in accuracy when dynamic balance calibration.

Further, silently also offer the passage 33 communicating with balance pipe 31 on 3, described passage 33 and the aperture of balance pipe 31 concentric settings and passage 33 are 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 on 3 outside end faces, and the port of passage 33 is opened in silently on 3 inner side ends and is formed with an internal diameter in the port of passage 33 and is greater than passage 33 apertures and is trumpet-shaped expansion mouth 33a.Can accelerate the radiating effect of passage 33 by expansion mouth 33a, you can discharge fast to make heat that deflector roll produces in the course of the work.

Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.

Claims

1. a paper machine deflector roll, comprise the spindle nose that is roll body cylindraceous and run through roll body, it is characterized in that, described roll body adopts thick-walled seamless steel pipes to make and be all inlaid with silently at roll body two ends, described spindle nose adopts stainless steel material to make and described silently connecting by oil pressure interference fit with spindle nose, described spindle nose is made up of home roll portion, and home roll portion two ends all stretch out vertically the first neck successively, the second neck, secondary roller portion and installation portion, be separately installed with bearing 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, the second neck external diameter is 60mm, the 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, end cap is all installed in roll body both ends of the surface 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 offers balance pipe on silently, and in balance pipe, is 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 offer correction hole on silently, described correction hole axial line, the axial line of balance pipe and the axial line of spindle nose are 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 going up also offers the passage communicating with balance pipe, and the aperture of described passage and the setting of balance pipe concentric and 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 on the end face of outside, and the port of passage is opened in silently on inner side end and is formed with an internal diameter in the port of passage and is greater than passage aperture and is trumpet-shaped expansion mouth.