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托辊配件以及各托辊配件的作用
托辊是有多种配件组成的，主要包括托辊冲压轴承座、托辊轴承、托辊密封、、托辊支架、、间隔套、挂钩接头、铸钢耙子、圆柱销、托辊轴和卡簧挡圈等。
The idler is composed of various accessories, mainly including the roller stamping bearing seat, idler bearing, idler seal, idler bracket, spacer, hook joint, cast steel rake, cylindrical pin, idler shaft and retaining ring.
1、托辊冲压轴承座：托辊轴承座共分为两种，一种是冲压轴承座，另一种是铸铁（灰铁 ）轴承座。冲压轴承座多数采用与钢管焊接，铸铁轴承座均采用与钢管挤压。冲压轴承座的特 点是密封好，整体承受力强，铸铁轴承座的最大特点就是同心度高，但承受力要比冲压轴承座 低。
1. Roller stamping bearing seat: there are two kinds of roller bearing seat, one is stamping bearing seat, the other is cast iron (gray iron) bearing seat. Most stamping bearing blocks are welded with steel pipes, while cast iron bearing blocks are extruded with steel pipes. Stamping bearing block is characterized by good sealing and strong overall bearing capacity. The biggest feature of cast iron bearing seat is high concentricity, but the bearing capacity is lower than that of stamping bearing seat.
2、托辊轴承：轴承是托辊组成的最重要部分，轴承的好坏直接影响着托辊的使用寿命。 所以选择托辊轴承，要比选择其他托辊配件更为谨慎。
2. Idler bearing: bearing is the most important part of idler, the quality of bearing directly affects the service life of idler. Therefore, the choice of idler bearing, than the choice of other idler accessories more careful.
3、托辊密封：托辊密封材料分为聚乙烯与尼龙。聚乙烯成本低，但耐磨性相对差，相反 ，尼龙材料的密封成本相对高，但耐磨性高（鉴别是否为尼龙材料，可将密封放入水中，下沉 的就是尼龙材料的密封，浮在水面的就是聚乙烯材料的密封）。托辊密封按托辊种类又分为 TD75型、DTII型、TR型、TK型、QD80型、SPJ型等等近十种。
3. Roller sealing: the roller sealing materials are divided into polyethylene and nylon. The cost of polyethylene is low, but the wear resistance is relatively poor. On the contrary, the sealing cost of nylon material is relatively high, but the wear resistance is high (to identify whether it is nylon material, the seal can be put into the water, what sinks is the seal of nylon material, and what floats on the water is the seal of polyethylene material). According to the types of idlers, idler seals can be divided into TD75 type, DTII type, TR type, TK type, QD80 type, SPJ type and so on.
4、托辊轴：托辊轴分为冷拔钢轴与阶梯轴。注：托辊轴的公差一定要保证在加0.002mm- 0.019mm之间。
4. Idler shaft: the idler shaft is divided into cold drawn steel shaft and stepped shaft. Note: the tolerance of idler shaft must be between 0.002mm and 0.019mm.
5、卡簧：托辊选用的卡簧采用弹簧钢制造而成，起到固定托辊串动的作用。劣质的弹簧 弹性差，易变性，在收到外力的冲压下不能良好的防治托辊的串动。
5. Snap ring: the spring steel is used for the selection of the idler, which plays a role in fixing the tandem movement of the idler. Poor quality spring has poor elasticity and changeability, so it can't prevent and control the series movement of idler under the stamping of external force.
6、挡圈：轴上零件的固定分为轴向固定和周向固定。
6. Retaining ring: the fixing of parts on the shaft is divided into axial fixation and circumferential fixation.
The idler is composed of various accessories, mainly including the roller stamping bearing seat, idler bearing, idler seal, idler bracket, spacer, hook joint, cast steel rake, cylindrical pin, idler shaft and retaining ring.
1、托辊冲压轴承座：托辊轴承座共分为两种，一种是冲压轴承座，另一种是铸铁（灰铁 ）轴承座。冲压轴承座多数采用与钢管焊接，铸铁轴承座均采用与钢管挤压。冲压轴承座的特 点是密封好，整体承受力强，铸铁轴承座的最大特点就是同心度高，但承受力要比冲压轴承座 低。
1. Roller stamping bearing seat: there are two kinds of roller bearing seat, one is stamping bearing seat, the other is cast iron (gray iron) bearing seat. Most stamping bearing blocks are welded with steel pipes, while cast iron bearing blocks are extruded with steel pipes. Stamping bearing block is characterized by good sealing and strong overall bearing capacity. The biggest feature of cast iron bearing seat is high concentricity, but the bearing capacity is lower than that of stamping bearing seat.
2、托辊轴承：轴承是托辊组成的最重要部分，轴承的好坏直接影响着托辊的使用寿命。 所以选择托辊轴承，要比选择其他托辊配件更为谨慎。
2. Idler bearing: bearing is the most important part of idler, the quality of bearing directly affects the service life of idler. Therefore, the choice of idler bearing, than the choice of other idler accessories more careful.
3、托辊密封：托辊密封材料分为聚乙烯与尼龙。聚乙烯成本低，但耐磨性相对差，相反 ，尼龙材料的密封成本相对高，但耐磨性高（鉴别是否为尼龙材料，可将密封放入水中，下沉 的就是尼龙材料的密封，浮在水面的就是聚乙烯材料的密封）。托辊密封按托辊种类又分为 TD75型、DTII型、TR型、TK型、QD80型、SPJ型等等近十种。
3. Roller sealing: the roller sealing materials are divided into polyethylene and nylon. The cost of polyethylene is low, but the wear resistance is relatively poor. On the contrary, the sealing cost of nylon material is relatively high, but the wear resistance is high (to identify whether it is nylon material, the seal can be put into the water, what sinks is the seal of nylon material, and what floats on the water is the seal of polyethylene material). According to the types of idlers, idler seals can be divided into TD75 type, DTII type, TR type, TK type, QD80 type, SPJ type and so on.
4、托辊轴：托辊轴分为冷拔钢轴与阶梯轴。注：托辊轴的公差一定要保证在加0.002mm- 0.019mm之间。
4. Idler shaft: the idler shaft is divided into cold drawn steel shaft and stepped shaft. Note: the tolerance of idler shaft must be between 0.002mm and 0.019mm.
5、卡簧：托辊选用的卡簧采用弹簧钢制造而成，起到固定托辊串动的作用。劣质的弹簧 弹性差，易变性，在收到外力的冲压下不能良好的防治托辊的串动。
5. Snap ring: the spring steel is used for the selection of the idler, which plays a role in fixing the tandem movement of the idler. Poor quality spring has poor elasticity and changeability, so it can't prevent and control the series movement of idler under the stamping of external force.
6、挡圈：轴上零件的固定分为轴向固定和周向固定。
6. Retaining ring: the fixing of parts on the shaft is divided into axial fixation and circumferential fixation.
