Film disc coupler with overload protection function

An overload protection and coupling technology, which is applied in the direction of couplings, elastic couplings, mechanical equipment, etc., can solve the problem of not being able to provide large axis offset compensation at the same time, so as to avoid overload damage of the diaphragm and high torque Effects of transmission, high power and torque transmission

Active Publication Date: 2018-07-03
AECC SICHUAN GAS TURBINE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above two patents are relatively simple in structure and cannot provide large axis offset compensation at the same time. The diaphragm and spacer shaft are radially supported to withstand axial force and perform long-distance, high-speed, high-torque and high-power transmission.

Method used

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  • Film disc coupler with overload protection function
  • Film disc coupler with overload protection function
  • Film disc coupler with overload protection function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0021] Please refer to the attached figure 1 , the present invention includes a symmetrically distributed coupling shaft 1, an integrated joint bearing (2), a flange (3), a diaphragm group (4), an adapter section (5), a coupling bolt (6), and a spacer shaft (7 ), adjusting pad (8), inner shaft (9), compression nut (10), lock plate (11), protective cover (12), support ring (13), clamp group (14), self-locking nut ( 15), outer mounting shaft (16), connecting screw (17) and locking plate (18).

[0022] Please refer to the attached figure 1 , the diaphragm group (4) formed by welding 4 single diaphragm discs, one end face is connected with the flange plate (3) through welding, and the other end face is connected with the transfer section (5) through welding, and the inner shaft (9 ) into the inner hole of the flange (3), install the adjusting pad (8) and the integrated joint bearing (2) on the inner shaft 11 in sequence, and compress the axial direction with the compression nut ...

Embodiment approach 2

[0026] Please refer to the attached image 3 , in the present invention, the integrated joint bearing (2) can adopt a self-lubricating joint bearing, the outer installation shaft (16) is fitted with the integrated joint bearing (2), and the inner shaft (9) and the spacer shaft (7 ) Welded as one structure, can realize the same function. The spacer shaft (7) is made of carbon fiber composite material, and then bonded to the inner shaft (9), and other components are made of light titanium alloy (except for joint bearings), which can further reduce the critical speed of the rotor and can take into account the long distance power transfer requirements.

Embodiment approach 3

[0028] Please refer to the attached Figure 4, in the present invention, the integrated spherical plain bearing (2) is changed to a split structure of spherical plain bearing plus mounting seat, and the axial positioning is carried out through the spacer sleeve (17) and the collar 18, while realizing the same function, Reduce the manufacturing cost of spherical plain bearings.

[0029] The above-mentioned embodiments disclose three preferred embodiments of a diaphragm coupling with overload protection of the present invention, but the present invention is not limited to the above-mentioned embodiments, and further improvements can be made on the basis of the disclosures in the above-mentioned embodiments and optimization. Attached if possible figure 1 The flange (3) and the inner shaft (9) in the middle are made into an integrated structure, which makes the structure simpler. will attach image 3 , attached Figure 4 The connection mode of the composite spacer shaft and t...

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PUM

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Abstract

The invention relates to a film disc coupler with an overload protection function. The film disc coupler can be applied to power transmission devices in aero-engines and marine engines. The film disccoupler comprises symmetrically-distributed connecting shafts (1), an integrated knuckle bearing (2), a flange plate (3), a switching section (5), a connecting bolt (6), an interval shaft (7), an adjusting mat (8), an inner shaft (9), a gland nut (10), a locking sheet (11), a protection outer cover (12), a bearing ring (13), a clamp set (14), a self-locking nut (15), an outer installing shaft (16), a connecting screw (17) and a locking sheet (18). On the basis that the common working condition of the film disc coupler is met, a bearing supporting structure is designed, a certain axial force load can be borne, a protection structure is designed for torque overload and deflection angle compensation overload conditions during work of the film disc coupler, the overload protection function isachieved, and the film disc overload damage can be effectively avoided.

Description

technical field [0001] The invention relates to a membrane disk coupling with overload protection function, which can be applied to power transmission devices in aircraft engines and ship engines. Background technique [0002] The diaphragm coupling is a flexible coupling that transmits power and torque through an extremely thin variable-thickness curved diaphragm surface, and compensates the axial and radial offsets between the main and driven axial lines. In foreign countries, the diaphragm coupling products in the civilian field have formed a series of standards, but most of them are limited to conventional structures that transmit torque and provide shaft center offset compensation, or limit the deflection angle by adding diaphragm guards on this basis To compensate, this structure increases the weight of the diaphragm rotor, which limits the high-speed application of the coupling. In the military field, the aero-engine power transmission shaft (including a diaphragm co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D3/56
CPCF16D3/56
Inventor 陈华清李晓云张露军夏静贵潘代锋李贵林
Owner AECC SICHUAN GAS TURBINE RES INST
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