A catheter fixing device with adjustable spatial position

Abstract

The invention provides a catheter fixing device with adjustable spatial position, which includes a bracket I and a clip; the clip is composed of upper and lower halves, and one end of the clip is provided with a small mouth end of the clip with a clip groove. The other end is connected with a long handle of the clamp; one side of the small mouth end of the clamp is provided with a small mouth end cylinder of the clamp with a retaining ring at the small mouth end of the clamp, and the other side is provided with a chamfer at the small mouth end of the clamp, A collar is sleeved on the cylinder at the small mouth end of the clamp. The present invention can be adjusted in the direction of two degrees of freedom in space, adapting to a variety of assembly positions; in view of the inconsistency between the physical tube shape and the designed tube shape of the catheter, it can avoid the tube shape correction of the catheter and install it directly, saving installation time and avoiding the The risk of damage caused by the shape correction; the assembly stress of the catheter to the bracket is reduced, the stress level of the bracket is reduced, and the service life is prolonged; a variety of components have good interchangeability and maintainability.

Description

technical field [0001] The invention relates to a duct fixing device with adjustable spatial position, belonging to the technical field of aero-engine pipeline fixing. Background technique [0002] Aero-engine and gas turbine ducts are important connecting parts that connect accessories and engine chambers to realize the normal functioning of the engine in order to meet the realization of specific functions such as air cooling, supercharging, bearing lubrication, combustion chamber oil supply and main pump control. [0003] The machining of the conduit has a large machining tolerance, so the actual tube type of the conduit is quite different from the design tube type. When the conduit is assembled on the engine, it is often impossible to easily install it according to the design drawings, and there is a large assembly stress. Therefore, it is necessary to The conduit is cast corrected, but the corrected conduit also has a certain level of assembly stress. [0004] At presen...

AI Technical Summary

Problems solved by technology

[0003] The processing of the duct has a large processing tolerance, so the physical tube shape of the duct is quite different from the designed tube shape. When the tube is assembled on the engine, it is often impossible to install it easily according to the design drawing, and there is a large assembly stress. Therefore, it is necessary to Tube type correction is applied to the conduit, but there is also a certain level of assembly stress in the corrected conduit

[0004] At present, the conduit is fixed on the section or accessories of the engine casing through clamps and brackets. Adjusting the span of the conduit through the clamps and brackets is a conventional method for adjusting and optimizing the dynamic frequency and stress of the conduit. The existing conduit fixing clamps cannot Spatial adjustment according to conduit tube type to meet stress-free or small-stress assembly

Images