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Electro-hydraulic torque power device for aviation engine

An aero-engine and power device technology, applied in the field of mechanical installation and power, can solve problems such as low operating efficiency, low degree of automation, and poor anti-reaction torque effect, so as to improve operating efficiency, improve the level of automated operation, and protect against damage Effect

Pending Publication Date: 2019-12-13
苏州慕天工业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Since the fastening and dismounting of the nuts on the rotors of aero-engines and aeroderivative gas turbines requires a very large torque and high torque accuracy, there is currently no corresponding torque power device in China, and they all rely on imports. There are currently two in the world. The related equipment of different technical routes: one is purely mechanical, with low degree of automation and low operating efficiency; the other is hydraulic, which adopts a single symmetrical straight-toothed ratchet structure, has poor anti-reverse torque effect, and does not have mechanical safety protection. Function

Method used

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  • Electro-hydraulic torque power device for aviation engine
  • Electro-hydraulic torque power device for aviation engine
  • Electro-hydraulic torque power device for aviation engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] An electro-hydraulic torque power device for an aeroengine, comprising a central ratchet 4, a bearing 24, a claw 17, a driving block 6 and a driving device; two driving rings are arranged side by side on the bearing 24; the two driving rings are In the ring structure with the same structure, the inner ring is provided with an opening for installing the pawl, and the outer surface is provided with a chute 1102; the opening is provided with a spring mounting hole 1101; the pawl passes through the spring mounting hole 1101 The spring is connected to the drive ring; the central ratchet 4 is provided with two helical gears, which are respectively connected to the helical pawls in the inner rings of the two drive rings; the pawl meshes with the central ratchet 4 and is driven by the drive ring; The claw 17 is provided with a U-shaped opening, and two sets of connecting through holes are provided on both sides of the U-shaped opening; the driving block 16 is provided with a thr...

Embodiment 2

[0021] An electro-hydraulic torque power device for an aero-engine, the driving device includes an oil cylinder, an oil block 8, a diverter valve 7 and an oil inlet port 23; the oil block 8 is provided with an oil inlet port 23, and the oil block 8 Oil cylinders are respectively arranged at both ends; the oil circuit block 8 is connected to the oil cylinders at both ends through the diverter valve 7; The two drive rings are the first drive ring 11 and the second drive ring 5; the two pawls are the first pawl 12 and the second pawl 15; the two cylinders are the first cylinder 6 and the second cylinder. Two oil cylinders 9; the first oil cylinder 6 drives the jaws 17 to perform horizontal reciprocating motion, so that the first drive ring 11 swings, thereby making the central ratchet 4 rotate clockwise; the second oil cylinder 9 drives the jaws 17 to perform horizontal reciprocation movement, so that the second drive ring 5 swings, so that the central ratchet 4 rotates countercl...

Embodiment 3

[0023] An electro-hydraulic torque power device for an aeroengine, a central transmission gear 22 is arranged between the two drive rings; a first gear 18 and a second gear 20 are respectively arranged on both sides of the central transmission gear 22; A gear 18 is provided with a torque sensor 13; the second gear 20 is connected with a manual wrench input port 3 through a connecting rod 21, and the manual wrench input port 3 is for nut tightening or dismounting, when the required torque is small, the manual wrench input port 3 is used. The wrench is inserted into the manual wrench input port 3 to quickly tighten and disassemble the nut to achieve the purpose of improving work efficiency, and then the driving device of the hydraulic part drives the output torque; the frame 14 is provided with a display screen 1; the oil block 8 is provided with a pressure sensor 10; the angle scale 2 is connected to the side of the central ratchet 4 on the outside by screws; the pressure sensor...

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Abstract

The invention discloses an electro-hydraulic torque power device for an aviation engine. The device comprises center ratchet wheels, a bearing, clamping jaws, drive blocks and a drive device; two drive rings are arranged on the bearing in parallel; openings for installing pawls are formed in inner rings of the drive rings, and sliding grooves are formed in the outer side faces of the drive rings;the pawls are connected with the drive rings through springs arranged in spring installing holes; the two center ratchet wheels are connected with oblique tooth pawls in the inner rings of the two drive rings; the clamping jaws are provided with U-shaped openings, and the two sides of the U-shaped openings are provided with connecting through holes; the drive blocks are arranged in the U-shaped openings; another clamping jaw pin is connected with the sliding grooves in the drive rings; the tail ends of the two clamping jaws are connected with the drive device; under the effect of the drive device, relative horizontal reciprocating motion can be performed. By adopting the dual-pawl wheel-ratchet engagement structure matched with the oblique tooth structure, clockwise and anti-clockwise high-torque output after one-time installation is ensured, counter-acting torque can be avoided, the mechanism does not bounce, and the clamping jaw pin has the overload self-turn-off function.

Description

technical field [0001] The invention relates to the technical field of mechanical installation power, in particular to an electro-hydraulic torque power device for an aero-engine. Background technique [0002] Since the fastening and dismounting of the nuts on the rotors of aero-engines and aeroderivative gas turbines requires a very large torque and high torque accuracy, there is currently no corresponding torque power device in China, and they all rely on imports. There are currently two in the world. The related equipment of different technical routes: one is purely mechanical, with low degree of automation and low operating efficiency; the other is hydraulic, which adopts a single symmetrical straight-toothed ratchet structure, has poor anti-reverse torque effect, and does not have mechanical safety protection. Features. Contents of the invention [0003] In order to overcome the above-mentioned defects in the prior art, the object of the present invention is to provi...

Claims

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Application Information

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IPC IPC(8): B25B21/00B25B23/00B25B23/145
CPCB25B21/00B25B23/00B25B23/145B25B21/002
Inventor 秦加林韩旭刘凯磊康绍鹏
Owner 苏州慕天工业科技有限公司
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