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Balance shaft with taper sleeve and for balance fan impeller

A technology of fan impeller and balance shaft, applied in the field of balance shaft, can solve problems such as tolerance matching, and achieve the effect of satisfying the convenience of disassembly and assembly, improving balance quality, and solving the problem of tolerance matching.

Inactive Publication Date: 2013-09-25
JIANGYIN JINGYA FAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the above disadvantages, to provide a balance shaft that reduces the unbalance margin, solves the problem of tolerance matching when the balance shaft and the inner hole of the fan impeller are assembled, and is easy to disassemble.

Method used

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  • Balance shaft with taper sleeve and for balance fan impeller
  • Balance shaft with taper sleeve and for balance fan impeller
  • Balance shaft with taper sleeve and for balance fan impeller

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Embodiment Construction

[0022] see Figure 1-3 , the present invention relates to a balancing shaft with a taper sleeve for balancing fan impellers, which includes a main shaft 1, on which a taper sleeve 3 is set, and the taper sleeve 3 is provided with an axial groove 3.1 (see image 3 ), the main shaft 1 is also provided with a locking disk 2, the locking disk 2 is offset against the tail of the taper sleeve 3, and the impeller is installed on the taper sleeve 3.

[0023] Working principle: The taper sleeve 3 and the main shaft 1 have an appropriate amount of interference fit to meet the convenience of installation and reduce the unbalance margin caused by the fit tolerance zone during balance. The taper sleeve 3 has a 2-3mm axial groove 3.1 to ensure The taper sleeve 3 can expand and contract in an appropriate amount, so as to achieve a certain radial adjustment range for the balance shaft, and the tapered self-adaptation after the locking disc 2 is compressed to meet the tolerance of the taper sl...

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Abstract

The invention relates to a balance shaft with a taper sleeve and for a balance fan impeller. The balance shaft comprises a spindle (1). The taper sleeve (3) is sleeved on the spindle (1), an axial groove (3.1) is formed in the taper sleeve (3), a locking disc (2) is further arranged on the spindle (1), and the locking disc (2) butts against the tail portion of the taper sleeve (3). The taper sleeve is in taper fit with the shaft, and under the effect of locking force, the problem of tolerance matching during assembling of the balance shaft and the fan impeller inner hole is solved effectively, unbalance margin is reduced, balance quality is greatly improved, a requirement for assembling and disassembling convenience is met, and the balance shaft is suitable for fan impellers produced in a batch mode and conducts balancing with high requirements.

Description

technical field [0001] The invention relates to a balance shaft, which is suitable for fan impeller balance and double-sided dynamic balance on a hard bearing balance machine, and belongs to the technical field of mechanical equipment. Background technique [0002] The unbalance margin of the fan impeller directly affects whether the fan machine runs stably and whether the vibration exceeds the standard, and the most critical factors affecting the impeller unbalance margin are the coordination between the balance shaft and the inner hole of the impeller; the matching clearance between the balance shaft and the inner hole of the impeller The smaller the value, the smaller the unbalance margin and the higher the balance quality. [0003] For this reason, the matching clearance between the balance shaft and the inner hole of the impeller is required to be small, and it must be easy to disassemble. The tolerance zone and the tolerance of the balance shaft fit, it is difficult t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/053F04D29/66
Inventor 赵晓春昌泽舟张余洁刘宏伟李智勇张建跃
Owner JIANGYIN JINGYA FAN
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