阅读说明：本技术 一种钢制扬克烘缸沟槽的加工方法 (Machining method of steel Yankee drying cylinder groove ) 是由 何维忠 吴匡蓝 于 2020-05-26 设计创作，主要内容包括：本发明属于烘缸加工技术领域,尤其为一种钢制扬克烘缸沟槽的加工方法,包括以下步骤：第一步,将钢制扬克烘缸安装在轴承座上,然后利用驱动装置通过万向轴与钢制扬克烘缸的转动轴连接；第二步,将切削钢制扬克烘缸沟槽的刀架安装在钢制扬克烘缸的侧壁处；第三步,根据所要求的沟槽尺度对刀具进行调节；第四步,将刀具移动至钢制扬克烘缸侧壁的合适位置后；第五步,调节刀具的进给量为0.5mm/每次,调节加工钢制扬克烘缸旋转线速度为200m/min,从而对钢制扬克烘缸进行开沟槽处理。本发明提高了钢制扬克烘缸沟槽的加工速度,且加工速度提升至2到3倍,使得操作工人由原来加工方法的两人减少到一人,节省了劳动力,且保证沟槽的加工可以达到更深。(The invention belongs to the technical field of drying cylinder processing, and particularly relates to a processing method of a steel Yankee drying cylinder groove, which comprises the following steps: firstly, mounting a steel Yankee dryer on a bearing seat, and then connecting a driving device with a rotating shaft of the steel Yankee dryer through a universal shaft; secondly, installing a tool rest for cutting a groove of the steel Yankee dryer at the side wall of the steel Yankee dryer; thirdly, adjusting the cutter according to the required groove dimension; fourthly, moving the cutter to a proper position on the side wall of the steel Yankee dryer; and fifthly, adjusting the feeding amount of the cutter to be 0.5mm per time, and adjusting the rotating linear speed of the processed steel Yankee dryer to be 200m/min, thereby carrying out ditching treatment on the steel Yankee dryer. The invention improves the processing speed of the groove of the steel Yankee dryer, and the processing speed is improved to 2 to 3 times, so that two workers of the original processing method are reduced to one, the labor force is saved, and the deeper processing of the groove can be ensured.)

1. A processing method of a steel Yankee drying cylinder groove is characterized by comprising the following steps:

firstly, mounting a steel Yankee dryer on a bearing seat, and then connecting a driving device with a rotating shaft of the steel Yankee dryer through a universal shaft;

secondly, installing a tool rest for cutting a groove of the steel Yankee dryer at the side wall of the steel Yankee dryer;

thirdly, adjusting the cutter according to the required groove dimension, enabling the cutter to move transversely by rotating the transverse lead screw, and enabling the cutter to move longitudinally by rotating the longitudinal lead screw, so that the positions of the cutter and the side wall of the steel Yankee dryer can be adjusted, and the requirement for cutting the groove of the steel Yankee dryer can be met;

fourthly, after the cutter is moved to a proper position on the side wall of the steel Yankee dryer, the steel Yankee dryer can be driven to rotate through a driving device through a universal shaft;

and fifthly, adjusting the feeding amount of the cutter to be 0.5mm per time, and adjusting the rotating linear speed of the processed steel Yankee dryer to be 200m/min, thereby carrying out ditching treatment on the steel Yankee dryer.

2. A method of manufacturing a steel yankee dryer cylinder groove according to claim 1, characterized in that: the feeding direction of the cutter is vertical to the central axis of the steel Yankee dryer.

3. A method of manufacturing a steel yankee dryer cylinder groove according to claim 1, characterized in that: the depth of the steel Yankee dryer groove is 28mm, and the width of the steel Yankee dryer groove is 13 mm.

4. A method of manufacturing a steel yankee dryer cylinder groove according to claim 1, characterized in that: the tool bit of the cutter is a semicircle with the radius of 3mm, and the radius of the arc-shaped groove at the innermost part of the steel Yankee dryer groove is 6.5 mm.

5. A method of manufacturing a steel yankee dryer cylinder groove according to claim 1, characterized in that: when the cutter cuts a groove on the steel Yankee dryer, cooling liquid needs to be poured at the cutting position of the cutter continuously.

Technical Field

The invention relates to the technical field of drying cylinder processing, in particular to a processing method of a steel Yankee drying cylinder groove.

Background

The dryer is the hollow cylinder who has the lid at both ends that makes with cast iron, comprises the cylinder body and the cylinder cap at both ends, and the external diameter is mostly 1000 ~ 3000mm, and at the operation in-process, the paper that the interior logical steam will carry is dried and is scalded the light. The cast iron drying cylinder for paper machine is a key component for drying paper-class I pressure container. The number of cast iron drying cylinders is about 2/3 of the total number of pressure vessels in the paper industry. The material from which the drying cylinders are made is generally HT200, HT 250. The manufacturing quality requires no penetration and excessive sand holes, and in order to increase the smoothness of the paper surface, the outer surface of the drying cylinder is required to be polished and the inner surface is required to be turned, so that the thickness of the whole wall of the drying cylinder is kept consistent, and the safety, balance and uniform heat transfer of each part of the drying cylinder are ensured. The dryer is used for drying the water in the paper and finishing the paper surface. Saturated steam introduced from the steam joint is condensed in the drying cylinder, and the temperature of the drying cylinder is raised by released heat, so that the paper sheets which run on the surface of the roller shell are heated. Heat is transferred to the paper sheet in contact with the surface of the drying cylinder. The steam releases heat to be condensed to generate a large amount of condensed water, the condensed water is attached to the inner surface of the drying cylinder under the action of centrifugal force due to the rotation of the drying cylinder, a water ring is formed under the condition of high angular velocity, the heat is prevented from being transferred to the surface of the drying cylinder, and therefore a siphon is needed to discharge the condensed water in time. When the speed of the vehicle is low, no water ring is formed, but the condensed water splashes and accumulates in the drying cylinder.

At present, a machining method of a groove of a steel Yankee dryer is shown in figure 2, the size of the groove is shown in figure 1.1, machining steps are shown in figures 1.2, 1.3 and 1.4, the feeding direction of a cutter is shown in figures, the feeding amount is 0.1mm per time, and the rotating linear speed of the steel Yankee dryer is 90 m/min. It can be seen from the figure that the tool feed direction is mainly radial. The processing method has the disadvantages that 1. the feeding direction of the cutter is radial, the roundness of the steel Yankee dryer is affected, and the processing allowance is increased. 2. The processing speed is slow, and the efficiency is low. 3. The scrap iron produced by the processing method is continuous, the scrap removal is difficult, special personnel are required to hook the scrap iron out by using an iron hook, and each lathe needs two persons to operate.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a method for processing a groove of a steel Yankee dryer, which solves the problems that the existing method for processing the groove of the steel Yankee dryer is shown in figure 2, the size of the groove is shown in figure 1.1, the processing steps are shown in figures 1.2, 1.3 and 1.4, the feeding direction of a cutter is shown in the figure, the feeding amount is 0.1mm per time, and the rotating linear speed of the processed steel Yankee dryer is 90 m/min. It can be seen from the figure that the tool feed direction is mainly radial. The processing method has the disadvantages that 1. the feeding direction of the cutter is radial, the roundness of the steel Yankee dryer is affected, and the processing allowance is increased. 2. The processing speed is slow, and the efficiency is low. 3. The scrap iron produced by the processing method is continuous, the scrap removal is difficult, special personnel are required to hook the scrap iron out by using an iron hook, and each lathe needs two persons to operate.

In order to achieve the purpose, the invention provides the following technical scheme: a processing method of a steel Yankee drying cylinder groove comprises the following steps:

firstly, mounting a steel Yankee dryer on a bearing seat, and then connecting a driving device with a rotating shaft of the steel Yankee dryer through a universal shaft;

secondly, installing a tool rest for cutting a groove of the steel Yankee dryer at the side wall of the steel Yankee dryer;

thirdly, adjusting the cutter according to the required groove dimension, enabling the cutter to move transversely by rotating the transverse lead screw, and enabling the cutter to move longitudinally by rotating the longitudinal lead screw, so that the positions of the cutter and the side wall of the steel Yankee dryer can be adjusted, and the requirement for cutting the groove of the steel Yankee dryer can be met;

fourthly, after the cutter is moved to a proper position on the side wall of the steel Yankee dryer, the steel Yankee dryer can be driven to rotate through a driving device through a universal shaft;

and fifthly, adjusting the feeding amount of the cutter to be 0.5mm per time, and adjusting the rotating linear speed of the processed steel Yankee dryer to be 200m/min, thereby carrying out ditching treatment on the steel Yankee dryer.

As a preferable technical scheme of the invention, the feeding direction of the cutter is vertical to the central axis of the steel Yankee dryer.

As a preferable technical scheme of the invention, the depth of the steel Yankee dryer groove is 28mm, and the width of the steel Yankee dryer groove is 13 mm.

As a preferred technical scheme of the invention, the cutter head of the cutter is a semicircle with the radius of 3mm, and the radius of the arc-shaped groove at the innermost part of the steel Yankee dryer groove is 6.5 mm.

As a preferable technical scheme of the invention, when the cutter cuts a groove on the steel Yankee dryer, cooling liquid needs to be continuously poured at the cutting position of the cutter.

Compared with the prior art, the invention provides a processing method of a steel Yankee dryer groove, which has the following beneficial effects:

the processing method of the steel Yankee dryer groove comprises the steps that the feeding amount is set to be 0.5mm per time, the rotating linear speed of the processed steel Yankee dryer is 200m/min, the method is utilized to enable the processing feeding amount to be large, the linear speed is high, micro-lubrication and micro-cooling devices need to be added, friction between a cutter and scrap irons and workpieces is reduced, due to the fact that the feeding direction of the cutter is changed, the scrap irons are extruded continuously, the scrap irons are discontinuous, the scrap discharging effect is good, special workers are not needed to hook and discharge the scrap irons, the processing speed of the steel Yankee dryer groove is improved, the processing speed is increased to 2-3 times, operators are enabled to be reduced to one person by two persons of the original processing method, labor force is saved, and the fact that the processing of the groove can be deeper is guaranteed.

Drawings

FIG. 1 is a schematic view of the groove processing of the present invention;

FIG. 2 is a schematic view of the present invention in comparison to conventional groove processing.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, in this embodiment: a processing method of a steel Yankee drying cylinder groove comprises the following steps:

firstly, mounting a steel Yankee dryer on a bearing seat, and then connecting a driving device with a rotating shaft of the steel Yankee dryer through a universal shaft;

secondly, installing a tool rest for cutting a groove of the steel Yankee dryer at the side wall of the steel Yankee dryer;

thirdly, adjusting the cutter according to the required groove dimension, enabling the cutter to move transversely by rotating the transverse lead screw, and enabling the cutter to move longitudinally by rotating the longitudinal lead screw, so that the positions of the cutter and the side wall of the steel Yankee dryer can be adjusted, and the requirement for cutting the groove of the steel Yankee dryer can be met;

fourthly, after the cutter is moved to a proper position on the side wall of the steel Yankee dryer, the steel Yankee dryer can be driven to rotate through a driving device through a universal shaft;

and fifthly, adjusting the feeding amount of the cutter to be 0.5mm per time, and adjusting the rotating linear speed of the processed steel Yankee dryer to be 200m/min, thereby carrying out ditching treatment on the steel Yankee dryer.

In the embodiment, the feeding direction of the cutter is vertical to the central axis of the steel Yankee dryer; the depth of the steel Yankee dryer groove is 28mm, and the width of the steel Yankee dryer groove is 13 mm; the cutter head of the cutter is a semicircle with the radius of 3mm, and the radius of the arc-shaped groove at the innermost part of the steel Yankee dryer groove is 6.5 mm; when the cutter cuts a groove on the steel Yankee dryer, cooling liquid needs to be poured at the cutting position of the cutter continuously.

The processing method of the steel Yankee dryer groove is shown in figure 1, and the groove size is consistent with that of figure 1.1 shown in figure 2.1. The processing steps are shown in fig. 2.2, 2.3. The feed direction of the tool is shown in the figure, and the feed direction is radial and axial.

The working principle and the using process of the invention are as follows: firstly, a steel Yankee dryer is arranged on a bearing seat, then a driving device is used for being connected with a rotating shaft of the steel Yankee dryer through a universal shaft, then a tool rest for cutting a groove of the steel Yankee dryer is arranged at the side wall of the steel Yankee dryer, a tool is adjusted according to the required groove dimension, the tool can be transversely moved by rotating a transverse screw rod, the tool can be longitudinally moved by rotating a longitudinal screw rod, so that the positions of the tool and the side wall of the steel Yankee dryer can be adjusted, the requirement for cutting the groove of the steel Yankee dryer is met, then the tool is moved to the proper position of the side wall of the steel Yankee dryer, the steel Yankee dryer can be driven to rotate through the universal shaft through the driving device after the tool is moved to the proper position, the feeding amount of the tool is adjusted to be 0.5 mm/each time, the linear speed of the steel Yankee dryer is adjusted and processed to be 200m/min, thereby carrying out ditching treatment on the steel Yankee dryer.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.