Ball screw device integrating dust prevention and lubrication

A ball screw, dust-proof technology, used in transmissions, transmission parts, belts/chains/gears, etc., can solve problems such as lubrication and service life
CN103511575AActive Publication Date: 2014-01-15HIWIN TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HIWIN TECH
Publication Date
2014-01-15

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Abstract

The invention discloses a ball screw device integrating dust prevention and lubrication. The ball screw device is mainly composed of a screw, a nut, a plurality of balls, a transmission part, a backflow unit and two dust-prevention assemblies. According to the ball screw device, the inside structure of the nut is designed mainly, the transmission part arranged inside the nut is matched, and therefore lubrication of the inside of the ball screw can be achieved. Thus, the axial length of the nut can not be increased, and therefore the displacement route of the nut is kept; meanwhile, the transmission part is only used for transmitting lubricating oil and cannot provide the lubricating oil, and therefore the transmission part does not have the problem of service life. Finally, when the ball screw device is vertically arranged, due to a capillary phenomenon, the transmission part adsorbs the lubricating oil and overcomes earth gravity, the lubricating oil is transmitted from a lower transmission joint portion to an upper transmission joint portion, and the inside of the ball screw is lubricated similarly.
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Description

technical field

[0001] The invention relates to a ball screw, in particular to a ball screw with dustproof and lubricating devices. Background technique

[0002] The current ball screw is designed to prevent dust or oil from entering the ball between the screw and the nut. Therefore, a dust-proof and lubricating device is installed at both ends of the nut. At the same time, the dust-proof and lubricating device can provide lubrication so that the ball can Smooth circulation and stress relief, however, various dust-proof and lubricating devices have different defects due to different designs.

[0003] refer to figure 1 As shown, it shows a diagram of US No. US6247556, which mainly processes a blind hole 111 parallel to the axis 121 of the screw 12 on the nut 11 of the ball screw, and then corresponds to the tooth groove 112 of the nut 11 or the tooth groove of the screw 12 respectively. 122 is processed radially to form a plurality of radial oil holes 113 communicating with...

Claims

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