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Hydrostatic nut pair

A nut pair and nut technology, which is applied to transmission parts, belts/chains/gears, mechanical equipment, etc., can solve the problems of high oil film pressure, too small oil film pressure, etc., and achieve reduced friction and strong resistance Vibration and stability, and the effect of improving bearing capacity

Inactive Publication Date: 2014-09-03
陈耀龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, the pressure of the oil film cannot be known during the working process of the hydrostatic nut pair. The pressure of the oil film may be too large or too small, so that the hydrostatic nut pair cannot be in the best working state and cannot exert the best effect

Method used

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Embodiment Construction

[0028] The core of the present invention is to provide a static pressure nut pair, which can be in the best working state, has a high bearing capacity, and has strong stability and vibration resistance.

[0029] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] Please refer to figure 1 and figure 2 , figure 1 It is a structural schematic diagram of a specific embodiment of the static pressure nut pair provided by the present invention, figure 2 for figure 1 The schematic diagram of the external structure of the hydrostatic nut pair shown. in, figure 1 The part of the middle nut located on the upper side of the lead screw and the part located on the lower side of the lead screw have different cross-sections.

[0031] In a specific embodiment, the present invention provides a...

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Abstract

The invention discloses a hydrostatic nut pair. The hydrostatic nut pair comprises a lead screw and nuts, wherein the lead screw and the nuts are matched. The inner tooth surfaces of the nuts are provided with oil cavities. The nuts are provided with oil through holes communicated with the oil cavities. Due to the distributed oil cavities, lubricating oil forms oil films between the lead screw and the tooth side surfaces of the nuts. The nuts are further provided with pressure taps communicated with the oil cavities. The pressure taps are provided with pressure joints. The oil through holes are provided with pressure regulating components. When the hydrostatic nut pair works, high-pressure lubricating oil is injected into the oil through holes of the nuts, enters the oil cavities through the pressure regulating components and can from the oil films between the lead screw and the tooth side surfaces of the nuts; in this way, the pressure of the oil films can be detected through the pressure joints of the pressure taps, the pressure regulating components are regulated according to the pressure of the oil films, the pressure regulating components can change the pressure of the oil films, and therefore the hydrostatic nut pair can be in an optimal working condition.

Description

technical field [0001] The invention relates to the technical field of thread transmission, in particular to a static pressure nut pair. Background technique [0002] Screw drive is a thread pair composed of a screw and a nut for transmission. It is mainly used to convert rotary motion into linear motion and transmit motion and power at the same time. [0003] The hydrostatic nut pair utilizes the principle of hydrostatic lubrication, uses pressure to send fluid between the two friction surfaces, forms a flowing fluid film between the friction surfaces, and uses hydrostatic pressure to balance the external load, which not only improves the bearing capacity, It also reduces the frictional force, improves the transmission efficiency and enhances the vibration resistance of the screw transmission. [0004] The hydrostatic nut pair includes a matching screw and a nut. The internal thread tooth surface of the nut is provided with an oil cavity, and the nut is also provided with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H25/24F16H57/04
CPCF16H25/24F16H57/043F16H57/0497
Inventor 陈耀龙刘亮亮
Owner 陈耀龙
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