锥形托辊

Conical roller

定义：

Definition：

锥形托辊分为锥形上调心托辊,锥形下调心托辊组，锥形托辊具有耐磨损，使用寿命长。重量轻，旋转惯性小。结构合理，密封可靠。防腐性能优越。

The conical roller is divided into a conical upward supporting roller, a conical downward supporting roller group, and a conical roller with abrasion resistance and long service life. Light weight, small rotation inertia. The structure is reasonable and the seal is reliable. The anticorrosion performance is superior.

特点：

Characteristic：

1、锥形托辊具有极高的耐磨性能，极低的摩擦系数，不易磨损皮带；

1. Tapered roller has extremely high wear resistance, very low friction coefficient, and is not easy to wear belt.

2、优越的自润滑性，不用注油，在恶劣条件下使用不易卡死；

2, excellent self lubrication, without oil injection, under harsh conditions, it is not easy to die.

3、具有抗静电、抗助燃、耐老化、耐酸、碱和有机溶剂的腐蚀；

3. It has antistatic, anti combustion, aging resistance, acid, alkali and organic solvent corrosion.

4、能承受反复冲击、振动；使用环境温度范围：-40℃-90℃；

4, can withstand repeated impact and vibration; use ambient temperature range: -40 C -90 C;

5、机械性能优异，重量轻，安装方便，不用维修；

5, excellent mechanical performance, light weight, easy installation, no maintenance.

6、运转平稳，寿命长等特点。

6, smooth operation, long life and so on.

应用范围：

Application scope:

锥形托辊广泛用于钢厂、电厂、码头、煤矿等各种运输行业，它具有耐磨、抗冲击、抗老化、无噪音、抗静电，自润滑不撕裂输送带，减轻阻力适于长距输送降低能耗。

Taper roller is widely used in all kinds of transportation industries, such as steel plant, power plant, wharf, coal mine, etc. it has wear resistance, impact resistance, anti aging, noise free, antistatic, self lubrication and no tear conveyor belt, reducing resistance for long distance transportation and reducing energy consumption.

加工生产工艺：

Processing technology:

一、轴承座为铸铁材料生产，在托辊钢管两端加工出台阶孔，然后将轴承座压装配合。

First, the bearing seat is made of cast iron material, and the step hole is machined at the two ends of the idler tube, and then the bearing seat is pressed and fitted together.

它的主要缺陷为：

Its main defects are:

1、迷宫式结构不合理，密封性能差；

1. The labyrinth structure is not reasonable, and the sealing performance is poor.

2、制造精度差，托辊钢管两端的内台阶孔经过加工后圆度达到了要求，可钢管本来存在的不圆度则无法消除；   3、托辊旋转部分重量大，致使托辊的转动惯量增大；

2, the manufacturing precision is poor, the inner step hole of the two ends of the roller has reached the requirement after processing, but the original circular degree of the steel pipe can not be eliminated; 3, the rotary part of the roller has large weight, resulting in the increase of the inertia of the roller.

4、劳动生产强度高。

4, the intensity of labor production is high.

二、轴承座用钢板材料冲压成型，然后利用二氧化碳气体保护焊工艺焊接到钢管的两端。

Two. The bearing seat is stamped with steel sheet material and then welded to the ends of the steel pipe by the carbon dioxide gas shielded arc welding process.

它的主要缺陷为：

Its main defects are:

1、密封性能也无法达到最理想的效果；

1, sealing performance can not achieve the most ideal results.

2、焊接时的无规则变形会影响两端轴承的同轴度。

2. Irregular deformation during welding will affect the coaxality of bearings at both ends.

为了解决上述传统托辊存在的弊端，利用托辊新型轴承座塑性好的特点，以托辊专用高频电焊钢管的直线精度好（6米长钢管的弯曲度不超过3毫米），和圆周壁厚一致性的特点为基础，以其内径为基准，将“尼龙合金”轴承座和支撑环直接与托辊钢管过盈压装，实现了托辊钢管内径不需要机械加工、也不再焊接的新型托辊生产工艺。   该方法的主要优点是：

In order to solve the disadvantages of the traditional roller, a new type of bearing seat with a new type of bearing roller is used to make the special high frequency welded pipe of the roller with a good linear precision (the bending degree of the 6 meter long steel pipe is not more than 3 mm), and the consistency of the circle wall thickness. The support ring is directly loaded with the idler steel pipe, and the new roller production process is realized, which does not require mechanical processing and no longer welding. The main advantages of this method are:

1、保证了托辊两端轴承位置的同轴度，误差≤0.05mm；

1. The coaxality of bearing position at both ends of the idler is guaranteed, and the error is less than 0.05mm.

2、轴承座和支撑环的过盈压装能够将钢管存在的不圆度消除60%左右，外圆径向圆跳动≤0.3mm；

2, the loading and unloading of bearing block and supporting ring can eliminate the roundness of the steel pipe by about 60%, and the radial circle beating of the outer circle is less than 0.3mm;

3、旋转阻力≤1N；

3, the rotation resistance is less than 1N;

4、噪音（1000r/min情况下）≤30dB；

4, noise (1000r/min) is less than 30dB;

5、有效保证了托辊的制造精度，装配合格率达到100%；

5. It effectively ensures the precision of the idler and the qualified rate of the assembly reaches 100%.

6、旋转部分的质量减轻了1/3，大幅度降低了转动惯量；

6, the quality of the rotating part is reduced by 1/3, which greatly reduces the moment of inertia.

7、简化了生产工艺，减轻了劳动强度，提高了工作效率；

7, simplify the production process, reduce labor intensity and improve work efficiency;

8、改变了传统的密封结构，在各种恶劣环境中实现了零污染长期正常运行。

8, change the traditional sealing structure, and achieve zero pollution long-term operation in all kinds of harsh environments.