輥?zhàn)右话悴捎脽o(wú)縫鋼管制成，也有用鑄鐵管或其他材料制造的，輥?zhàn)虞S固定在支架中。輥?zhàn)优c軸之閥裝有滾動(dòng)軸零。鑄造車間常用的輥?zhàn)佑腥N：輕型（Φ73）、中型（Φ105）和重型（Φ155）。其中前兩種用的較多。

The roller is usually made of seamless steel tube, also made of cast iron pipe or other material, and the roller shaft is fixed in the bracket. The rollers and shaft valves are equipped with rolling axis zero. There are three kinds of rolls used in the foundry workshop: light (73), medium (105) and heavy (155). The first two are more used.

空轉(zhuǎn)輥道——通常借助軋件重力來(lái)推動(dòng)，所以輥道之平面多做成與水平面之間有斜度，以利用重力作用，因此又稱為重力輥道。一般小型軋機(jī)的輥道，特別是升降臺(tái)上的輥道，盡可采用重力輥道而不必采用轉(zhuǎn)動(dòng)輥道。有些工作輥道的延長(zhǎng)部分也有采用重力輥道的。

The idle roller table is usually driven by the gravity of the rolled piece, so the plane of the roller table is made of a gradient between the horizontal plane and the horizontal plane, so as to make use of the gravity effect, so it is also called the gravity roller table. The rolling mill of a small mill, especially the roller table on the lift table, can use the gravity roller without using the rotating roller table. Some of the lengthening parts of the working rollers also use the gravitational roller.

皮帶輸送機(jī)的結(jié)構(gòu)參數(shù)的優(yōu)化方法皮帶輸送機(jī)的結(jié)構(gòu)雖然受到了種種工況的限制，而輸送機(jī)的工作狀態(tài)是處于滿載正常運(yùn)行的狀態(tài)，在常規(guī)設(shè)計(jì)計(jì)算方法完成后，可以進(jìn)行采用離散變量?jī)?yōu)化的網(wǎng)絡(luò)法，對(duì)帶式輸送機(jī)參數(shù)進(jìn)行優(yōu)化設(shè)計(jì) 。

Optimization of the structural parameters of belt conveyer, the structure of belt conveyer is restricted by various working conditi, and the working state of the conveyor is in a state of full load. After the completion of the conventional design calculation method, the network method of discrete variable optimization can be used to optimize the parameters of the belt conveyor. Chemical design.