CC-Y improved socket spanner special for engine metal filing annunciator
By designing a special sleeve wrench for metal chip signaling device of дCC-Y improved engine, using a twelve corner sleeve and tongue and groove structure, the problems of low disassembly and assembly efficiency and waste of lubricants in the existing technology are solved, and a fast and economical signal disassembly and assembly are achieved.
Patent Information
- Application Number
- CN202422030201.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-21
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-08-21
AI Technical Summary
The prior art cannot efficiently disassemble and install the metal chip signaler of дCC-Y engine, resulting in problems such as waste of lubricant, seal failure and low working efficiency.
A special sleeve wrench for metal chip signaling device of дCC-Y improved engine was designed, adopting a twelve corner sleeve structure, combining octagonal tongue and twelve corner tongue and groove, and combining a universal quadrangle tenon connection rod to achieve rapid disassembly and assembly of the signal.
It improves the disassembly and assembly efficiency, avoids waste of lubricant and seal damage, reduces working time, and enhances the convenience of operation in small spaces.
Smart Images
Figure CN223172855U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of socket wrenches, and specifically relates to a special socket wrench for the metal chip signaler of the дCC-Y improved engine. Background Art
[0002] The original 171E engine model was VK-2500-03, and the improved engine model is VK-2500PS-03. The engine control principles vary greatly. According to their respective "Maintenance Regulations", both types of engines need to disassemble, inspect and clean the metal chip signaler during the 100-hour regular inspection. The original engine metal chip signal model was CC-78. A single signaler was installed on the lower side of the helicopter oil cooler, located in the main reduction gearbox compartment. A general 10×12 or 36×41 open-end wrench can be used for disassembly and assembly, and a mechanic can complete this work in 30 minutes.
[0003] Both of the two signalers of the improved engine are of the дCC-Y model, and their shapes and structures are completely different from those of CC-78. They are respectively installed on the left side and the bottom of the lower oil accessory of the engine. Among them, the No. 2 signaler is located at the bottom, with the lower oil accessory above it, the floor and the oil duct below it, and the air pressure and temperature sensor of the engine air intake duct is installed on the front side. The compressor and the combustion chamber housing extend backward, and the compressor housing is installed on the right side. This component can only be observed from the lower left side, and its assembly space is narrow. It is more difficult to disassemble and assemble the right engine due to the obstruction of the left engine. The process of this regular inspection work is completely different for the two types of engines.
[0004] After this aircraft model was put into service, due to the interference between the size design of the general six-sided No. 27 socket wrench and the signaler wire plug, it could not be inserted into the signaler, and there was no special tooling available. Only the 46 open-end wrench could be used to remove the oil duct on the floor first, and then the 24×27 and 30×32 open-end wrenches could be used to disassemble and assemble the signaler. This process has the following problems:
[0005] First, after the oil duct is removed, not only will the oil in the engine be emptied, resulting in serious waste (the oil volume of a single engine is 10 liters, and the price is 1000 yuan), but also the oil needs to be added again later, and the engine compartment needs to be cleaned, increasing the workload;
[0006] Second, frequent disassembly of this oil duct may cause the seal of the duct flare to fail and leak oil after wear;
[0007] Third, the general 27×30 open-end wrench is likely to scratch the air pressure and temperature sensor, and at the same time damage the seal ring of the metal chip signaler, and the rotatable angle is only about 10 degrees;
[0008] Fourth, the efficiency is extremely low. A quick-release or ratchet wrench cannot be used, and a mechanic needs to work continuously for more than 2 hours to complete this work. Content of the Utility Model
[0009] The technical problem to be solved by the present utility model is to provide a special socket wrench for the metal chip signaler of the дCC-Y improved engine in view of the above deficiencies.
[0010] To solve the above technical problems, the present utility model adopts the following technical solutions:
[0011] A special socket wrench for the metal chip signaler of the дCC-Y improved engine, including a twelve-sided socket. The twelve-sided socket is hollow and has a stepped setting with a narrower upper part and a wider lower part. The internal cavity is composed of two cylindrical shapes with different diameters from top to bottom. The upper end of the twelve-sided socket is a connection end, and the lower end is an insertion end. The connection end is used for clamping with an external connecting rod, and the insertion end is used for clamping with the metal chip signaler. An octagonal mortise groove is provided on the inner side of the upper end of the connection end, and the octagonal mortise groove is used for docking with an external universal four-sided mortise head connecting rod. A twelve-sided mortise groove is provided on the inner side of the lower end of the insertion end.
[0012] Further, the inner diameter of the insertion end is 31 mm.
[0013] Further, the inner diameter of the connection end is 22 mm.
[0014] After adopting the above technical solutions, the present utility model has the following advantages compared with the prior art:
[0015] The present utility model is convenient and fast to use. Only by matching with the existing extension rod and quick-release wrench or separately matching a transfer rod can the disassembly and assembly of the signaler be completed. Especially, the advantages are more obvious in the disassembly and assembly of the right engine signaler; it greatly improves the fixed inspection efficiency, has strong economic performance, avoids the waste of lubricating oil and the influence of irrelevant work; and the octagonal mortise groove provided at the connection end, in cooperation with the front twelve-sided socket, reduces the allowable rotation angle, and can effectively use this special tool in a small space range.
[0016] The present utility model will be described in detail below with reference to the drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a three-dimensional structural diagram of the present utility model;
[0018] Figure 2 is a bottom view of the present utility model;
[0019] Figure 3 is a cross-sectional view of the internal structure of the present utility model.
[0020] In the drawings, the list of components represented by each reference numeral is as follows:
[0021] 1. Twelve-sided socket; 101. Connection end; 102. Insertion end; 2. Octagonal mortise groove; 3. Twelve-sided mortise groove. Detailed implementation mode
[0022] The principles and features of the present utility model will be described below in conjunction with the accompanying drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.
[0023] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.
[0024] As shown in Figures 1 - 3 , a special socket wrench for the metal chip signaler of the дCC-Y improved engine includes a twelve-sided socket 1. The twelve-sided socket 1 is hollow and has a stepped setting with a narrower upper part and a wider lower part. The internal cavity is composed of two cylindrical shapes with different diameters from top to bottom. The upper end of the twelve-sided socket 1 is a connection end 101, and the lower end of the twelve-sided socket 1 is an insertion end 102. The connection end 101 is used for clamping with an external connecting rod, and the insertion end 102 is used for clamping with the metal chip signaler. An octagonal mortise groove 2 is provided on the inner side of the upper end of the connection end 101, and the octagonal mortise groove 2 is used for docking with an external universal four-sided tenon connecting rod. A twelve-sided mortise groove 3 is provided on the inner side of the lower end of the insertion end 102.
[0025] As an implementation mode, the inner diameter of the insertion end 102 is 31 mm.
[0026] As an implementation mode, the inner diameter of the connection end 101 is 22 mm.
[0027] The working process of the present utility model: First, the insertion end 102 is sleeved on the top of the metal chip signaler, and then the external four-sided tenon connecting rod is inserted into the octagonal mortise groove 2 of the connection end 101, and then rotated. When encountering an obstacle, the four-sided tenon connecting rod is pulled out and inserted into the octagonal mortise groove 2 at a different angle, and then rotated again. After repeating the above actions multiple times, the metal chip signaler can be removed.
[0028] The above is an example of the best implementation mode of the present utility model. The parts not described in detail are all common knowledge of those of ordinary skill in the art. The protection scope of the present utility model shall be subject to the content of the claims. Any equivalent transformation based on the technical inspiration of the present utility model is also within the protection scope of the present utility model.
Claims
1. A special socket wrench for the metal chip signaler of the дCC-Y improved engine, characterized in that, It includes a dodecagonal sleeve (1). The dodecagonal sleeve (1) is hollow and has a stepped structure with a narrower upper part and a wider lower part. The internal cavity is composed of two cylindrical parts with different diameters from top to bottom. The upper end of the dodecagonal sleeve (1) is a connection end (101), and the lower end of the dodecagonal sleeve (1) is an insertion end (102). The connection end (101) is used for clamping with an external connecting rod, and the insertion end (102) is used for clamping with a metal chip signaler. An octagonal mortise groove (2) is provided on the inner side of the upper end of the connection end (101), and the octagonal mortise groove (2) is used for docking with an external universal four-corner tenon connecting rod. A dodecagonal mortise groove (3) is provided on the inner side of the lower end of the insertion end (102).
2. The special socket wrench for the metal chip signaler of the дCC-Y improved engine according to claim 1, wherein The inner diameter of the insertion end (102) is 31 mm.
3. A special socket wrench for the metal chip signaler of the дCC-Y improved engine according to claim 1, characterized in that, The inner diameter of the connection end (101) is 22 mm.