1) Basic structure and performance

基本構(gòu)造是由1.直線導(dǎo)軌、2.直線運(yùn)動(dòng)滑導(dǎo)塊、3.滾動(dòng)軸承用滾珠構(gòu)成。

The basic structure is composed of 1. Linear guide, 2. Linear motion guide block, 3. Rolling bearing ball.

對(duì)于這種構(gòu)造可根據(jù)使用規(guī)格選擇各種產(chǎn)品。例如采用密封板類零件構(gòu)造可實(shí)現(xiàn)其防塵性和無塵室使用要求，采用滾珠保持器構(gòu)造可提高其滑動(dòng)性能等等。此外，對(duì)于直線滑動(dòng)條件和負(fù)載、為了實(shí)現(xiàn)更高的導(dǎo)向精度，根據(jù)實(shí)際情況可采用2支導(dǎo)軌或和多個(gè)滑塊的構(gòu)造。

For this structure, various products can be selected according to the specifications. For example, the use of sealing plate parts can achieve the requirements of dust-proof and dust-free chamber, and the use of ball retainer can improve its sliding performance. In addition, for linear sliding conditions and loads, in order to achieve higher guidance accuracy, according to the actual situation, the structure of two guide rails or multiple sliders can be adopted.

(2)滾動(dòng)軸承部的構(gòu)造和功能

(2) Structure and function of rolling bearing part

(a)滾動(dòng)軸承單元的構(gòu)造

(a) Structure of rolling bearing unit

直線導(dǎo)軌的性能基本上是由滾動(dòng)軸承單元的構(gòu)造決定的。導(dǎo)軌上滾珠用導(dǎo)向槽的個(gè)數(shù)稱為「列數(shù)」，在滾道內(nèi)滾珠的接觸點(diǎn)數(shù)作為「點(diǎn)接觸數(shù)」、用來表現(xiàn)滾珠軸承單元的構(gòu)造。這種多列滾珠軸承的構(gòu)造，即使在急速加減速時(shí)承受力矩載荷或長(zhǎng)時(shí)間在嚴(yán)苛條件下連續(xù)運(yùn)行等情況下，也可保持其精度。

The performance of linear guide is basically determined by the structure of rolling bearing unit. The number of guide grooves for balls on the guide rail is called "column number". The number of contact points of balls in the raceway is regarded as "point contact number", which is used to represent the structure of ball bearing unit. The structure of the multi row ball bearing can keep its accuracy even under the condition of bearing torque load during rapid acceleration and deceleration or continuous operation under severe conditions for a long time.

此外，也有在預(yù)壓狀態(tài)不同的情況下、軸承單元的接觸狀態(tài)會(huì)發(fā)生變化，用以維持高剛性?高精度的產(chǎn)品構(gòu)造。

In addition, under different preloading conditions, the contact state of the bearing unit will change to maintain high rigidity and high precision product structure.

(b)關(guān)于無噪音、平穩(wěn)運(yùn)行

(b) Noise free and smooth operation

直線導(dǎo)軌采用循環(huán)滾珠型構(gòu)造，摩擦力小、可實(shí)現(xiàn)平穩(wěn)運(yùn)行。另外還有內(nèi)置滾珠保持器，循環(huán)滾珠相互接觸、無摩擦音，可實(shí)現(xiàn)長(zhǎng)久無噪音和平穩(wěn)運(yùn)行的的直線導(dǎo)軌滑塊構(gòu)造。

The linear guide adopts the circular ball structure, which has small friction and can realize smooth operation. In addition, there is a built-in ball holder, which makes the circulating balls contact each other and has no friction sound. It can realize the linear guide slider structure of long-term noiseless and smooth operation.

(3)其它直線導(dǎo)軌

(3) Other linear guides

不需要高剛性的場(chǎng)合，可采用精 密成形的U型不銹鋼鋼板、將軌道部和安裝面 一 體 化的精 密滾珠滑軌構(gòu)造，具有小型?輕量?低的特點(diǎn)。

Where high rigidity is not required, precision formed U-shaped stainless steel plate and precision ball slide structure integrating track part and mounting surface can be adopted, which has the characteristics of small size, light weight and low price.