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Inner bore spanner

An inner hole and wrench technology, applied in the directions of wrenches, manufacturing tools, wrenches, etc., can solve the problems of lack of focus and inner hole damage, and achieve the effect of simple and convenient use.

Inactive Publication Date: 2014-06-11
XIAN AERO ENGINE CONTROLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] see figure 1 , Bushing parts with small radial holes are more common in mechanical products. Such parts are threaded on the outside and only a few small radial process holes inside. The structure is rather special. When screwing it into its components, there is no The focus is that ordinary wrenches cannot complete the assembly of this type of parts
The method of tightening the inner hole and using the friction force may not be able to meet the torque requirements. When the required torque is large, the friction force cannot meet the requirements, and it is easy to cause damage to the inner hole with higher smoothness requirements.

Method used

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Embodiment Construction

[0021] see figure 2 , the present invention provides an inner hole wrench used on bushing parts with small radial holes, the inner hole wrench includes a positioning shaft 1 and a protrusion arranged on the positioning shaft 1 along the radial direction of the positioning shaft 1 Or active bayonet unit.

[0022] When the radial direction of the positioning shaft 1 on the inner hole wrench is provided with a movable latch unit, the positioning shaft 1 is provided with a radial groove that allows the movable latch unit to move radially; the inner hole wrench also includes a A toggle unit that toggles the movable bayonet unit. The inner hole wrench also includes a through hole arranged along the radial direction of the positioning shaft 1, and the toggle unit is arranged in the through hole of the positioning shaft 1 and is connected with the movable latch unit. The inner hole wrench also includes a sleeve 4 sleeved on the positioning shaft 1; the toggle unit extends into the ...

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Abstract

The invention relates to an inner bore spanner which is provided with a small radial hole and is used on the parts such as a bush, the inner bore spanner comprises a locating shaft, and a protrusion or a movable clamp toothed unit which is arranged on the locating shaft along the radial direction of the locating shaft. The invention provides the inner bore spanner which is convenient to used, is safe and reliable, and can be suitable for on-site batch production.

Description

technical field [0001] The invention belongs to the field of mechanical assembly and relates to an assembly tool, in particular to an inner hole wrench used on bushing parts with small radial holes. technical background [0002] see figure 1 , Bushing parts with small radial holes are more common in mechanical products. Such parts are threaded on the outside and only a few small radial process holes inside. The structure is relatively special. When screwing it into its components, there is no The focus is that ordinary wrenches cannot complete the assembly of this type of parts. The method of tightening the inner hole and using the friction force may not necessarily meet the torque requirement. When the required torque is large, the friction force cannot meet the requirement, and doing so will easily cause damage to the inner hole with higher smoothness requirements. Contents of the invention [0003] In order to solve the above-mentioned technical problems in the backgr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25B13/48
Inventor 贾双良李雪英杨顺兴
Owner XIAN AERO ENGINE CONTROLS