Rolling guide rail pair
A technology of rolling guide rails and guide rails, applied in the direction of linear motion bearings, bearings, shafts and bearings, etc., can solve problems such as reducing the flexibility and stability of rolling guide rail pairs, affecting the service life of rolling guide rail pairs, and complex bearing body structure, etc. Achieve the effect of low production cost, light weight and simple manufacturing process
Active Publication Date: 2011-05-04
安徽省威远精密工业科技有限公司
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Problems solved by technology
Although this technical solution simplifies the production process of the guide rail and reduces some manufacturing costs, the radius of curvature of the steel ball as the rolling body and the outer surface of the cylindrical guide rail as the raceway is very small, forming point contact with each other , the contact stress is very large, and the bearing capacity is poor, which seriously affects the service life of the rolling guide pair
Moreover, the structure of the main body of the bearing as a part of the slider is still complicated, and it is difficult to manufacture, so it is difficult to greatly reduce the production cost
In addition, the bearing capacity of the rolling guide pair with four rows of balls is greatly improved compared with the rolling guide pair of two rows of balls, but at the same time it also increases the movement resistance and reduces the compliance and stability of the rolling guide pair.
Method used
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[0023] In Figure 1 to Figure 4 The shown embodiment 1 of the rolling guide rail pair of the present invention includes a guide rail and a slider 17 that can slide on the guide rail. The guide rail is made up of a guide rail body 14 of aluminum alloy and two grooved steel rails 15 and 16 inlaid on the guide rail body 14 . The slider is composed of an aluminum alloy slider body 1, 2 rolling grooves 7 and 10 embedded in the slider body, 2 end caps and 3 rows of balls. 3 rows of balls are arranged in single row 13 on one side of the guide rail, and double row 12 on the other side. The raceways of grooved steel rails 15,16 and rolling grooves 7,10 are arc-shaped grooves that cooperate with the balls. Each row of raceways is arranged on the single-row side groove-shaped rail 15 and the rolling groove 13, and the groove-shaped steel rail 15 and the rolling groove 13 are V-shaped. Two rows of raceways are respectively arranged on the double-row side grooved rails 16 and the rollin...
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The present invention discloses a rolling guideway pair. It includes guideway and slide block, the described guideway includes guideway self-body and steel track inlaid on the guideway self-body, the described slide block includes slide block self-body, two end covers and ball train loaded between the guideway and slide block. The invented rolling guideway pair has two steel tracks, three ball trains and two rolling channels. Said invention also provides the working principle of said rolling guideway pair and its concrete operation and application method.
Description
[technical field] [0001] The invention relates to the technical field of precision machinery, in particular to a rolling guide rail pair in which a hard raceway is inlaid on a base material of the guide rail. [Background technique] [0002] A pair of guide rails in which some balls are placed between the guide part and the moving part so that the matching two guide rail surfaces are not in direct contact is called a rolling guide pair. The characteristics of the rolling guide pair are small frictional resistance, light and flexible movement; small wear and long-term accuracy; the difference between dynamic and static friction coefficients is small, and the phenomenon of "crawling" is not easy to occur at low speeds, so the movement is uniform and stable. Therefore, the rolling guide pair is increasingly widely used in equipment that requires micro-movement and precise positioning. [0003] Publication number CN 1369651A Chinese Invention Patent Application Publication "Line...
Claims
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IPC IPC(8): F16C29/06
Inventor 李敬宇李一前
Owner 安徽省威远精密工业科技有限公司