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A hollow drive shaft embedded fluid circuit rotary joint and hollow drive shaft connecting piece

A technology of rotary joints and transmission shafts, applied in the direction of pipes/pipe joints/pipes, shafts and bearings, adjustable connections, etc., can solve the problems of limiting the shape of the main transmission shaft and increasing the difficulty of processing the internal space of the main transmission shaft, etc. Avoid radial offset and angular offset, quick and easy installation, and easy operability

Inactive Publication Date: 2020-11-17
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the rotor port of the hydraulic rotary joint is directly connected to the main transmission shaft, it will inevitably limit the internal shape of the main transmission shaft and increase the difficulty of processing the internal space of the main transmission shaft

Method used

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  • A hollow drive shaft embedded fluid circuit rotary joint and hollow drive shaft connecting piece
  • A hollow drive shaft embedded fluid circuit rotary joint and hollow drive shaft connecting piece
  • A hollow drive shaft embedded fluid circuit rotary joint and hollow drive shaft connecting piece

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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited to the content described.

[0022] A connection piece between a hollow transmission shaft embedded liquid path rotary joint and a hollow transmission shaft. The connection piece is formed by coaxially connecting a cylindrical sleeve 1 at the front end and a flange portion 2 at the rear end. The cylindrical sleeve 1 The outer diameter is smaller than the outer diameter of the flange part 2;

[0023] The flange part 2 is provided with a hexagonal through hole 3, the shape and size of the through hole are the same as the hexagonal prism part in the liquid path rotary joint rotor, and it is interference fit with the liquid path rotary joint rotor during operation to realize The connecting piece is synchronized with the movement of the liquid path rotary joint; the outer diamet...

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Abstract

The invention discloses a hollow transmission shaft embedded liquid path rotary joint and a hollow transmission shaft connecting piece. The connecting piece is formed by coaxially connecting a cylindrical sleeve at the front end and a flange part at the rear end, a hexagonal through hole is arranged in the flange part, the shape and the size of the through hole are the same as those of a hexagonalprism part in the liquid path rotary joint rotor, and the outer diameter of the flange part is larger than that of a hollow transmission shaft; and a circular through hole is arranged in the cylindrical sleeve, the circular through hole communicates with the hexagonal through hole of the flange part, the outer diameter of the cylindrical sleeve is the same as the inner diameter of the hollow transmission shaft, four grooves with the same width are arranged in the circumferential direction of the cylindrical sleeve, and the width of each groove is the same as the diameter of a screw reserved hole in the hollow transmission shaft. The connecting piece is simple in structure, low in cost and good in clamping effect, and effectively solves the technical problem of transmission connection between the interior of the hollow transmission shaft and a rotor port of the liquid path rotary joint.

Description

technical field [0001] The invention belongs to the technical field of fluid mechanical transmission design, and in particular relates to a shaft coupling. Background technique [0002] In fluid mechanical transmission, in order to connect the driving shaft and the driven hydraulic circuit, it is usually necessary to set a hydraulic rotary joint at the connection, and in order to connect the hydraulic rotary joint with the driving shaft, it is necessary to use a coupling with Functional connectors to achieve efficient transmission between the two. At the same time, the setting of the connecting piece can effectively avoid the occurrence of factors unfavorable to transmission such as axial offset, radial offset, and angular offset during transmission. [0003] On the other hand, for the purpose of protecting the hydraulic circuit, the driving shaft sometimes needs to be made into a hollow transmission shaft to hide the hydraulic system in the driving shaft to protect it from...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C3/02F16L27/08
CPCF16C3/02F16L27/08
Inventor 杨肖李双何源
Owner BEIHANG UNIV