Measuring and checking tool for zero-order blade and rocker arm matching hole of turboshaft engine

Abstract

The utility model discloses a measuring and checking tool for a zero-order blade and a rocker arm matching hole of a turboshaft engine. The measuring and checking tool comprises a plug gauge comprising a holding section and a detection section; a conical transition section is arranged between the holding section and the detection section; the detection section is configured to be cylindrical, and the diameter of the detection section is matched with the aperture of a matching hole of the zero-order blade and the rocker arm; the roughness of the detection section is configured to be 1.6 [mu] m. The utility model provides a turboshaft engine zero-order blade and rocker arm matching hole measuring and checking tool, which can be directly inserted into a matching hole for detection by arranging a plug gauge as the measuring and checking tool, and can directly judge the abrasion condition through whether the plug gauge can be inserted or not, thereby effectively improving the maintenance efficiency, reducing the working requirements on maintenance personnel, and reducing the labor intensity of the maintenance personnel. The size and the roughness of the plug gauge are designed according to the aperture and the material of the matching hole, the precision requirement of measurement is met, abrasion is reduced, meanwhile, impurities are prevented from being adsorbed on the surface, judgment is more accurate, misjudgment is avoided, and the influence of operation of maintenance personnel is small.

Description

TECHNICAL FIELD

[0001] The utility model relates to turbo shaft engine detection technical field, more specifically, the utility model relates to a kind of measurement and inspection tooling of turbo shaft engine zero stage blade and rocker arm cooperation hole. BACKGROUND

[0002] The cooperation hole of turbo shaft engine zero stage blade and rocker arm is a key connecting part in engine, and its design and manufacturing precision is crucial to the performance and reliability of engine.The precision of cooperation hole directly affects the connection strength and stability between blade and rocker arm.During use, it is necessary to regularly check turbo shaft engine, especially the cooperation hole between zero stage blade and rocker arm, to ensure its normal work and prolong service life.

[0003] After a certain type of turbo shaft engine is overhauled for the first time, it is often found that the cooperation hole of zero stage blade and rocker arm is worn, which leads to problems such as insufficient air intake in the intake passage during engine operation.At present, the cooperation hole of zero stage blade and rocker arm is measured by vernier caliper during repair to determine whether the cooperation hole has exceeded the wear problem specified in the process.

[0004] But the detection by vernier caliper is prone to detection position error and inaccurate reading, which requires high skill of the operator, and the vernier caliper detection needs to accurately find the measurement position and adjust the caliper, which often requires repeated measurement, and the detection steps are tedious and slow.

[0005] The utility model patent with publication number CN203385343U discloses a frame hole verification plug gauge, which can detect holes with diameters of 10.5mm, 12.5mm, 14.5mm and 16.5mm, and improves the work efficiency of quality inspectors.But the size and roughness of this device are not suitable for the cooperation hole, and it cannot be directly used for measuring the cooperation hole. UTILITY MODEL CONTENT

[0006] An object of the utility model is to solve the above problems and / or defects, and provide the advantages to be explained later.

[0007] In order to achieve these objects and other advantages of the utility model, a measurement and inspection tooling of turbo shaft engine zero stage blade and rocker arm cooperation hole is provided, which comprises a plug gauge including a holding section and a detection section.

[0008] A tapered transition section is provided between the holding section and the detection section.

[0009] The detection section is configured in a cylindrical shape, and its diameter is matched with the aperture of the cooperation hole of zero stage blade and rocker arm.

[0010] The roughness of the detection section is configured as 1.6μm.

[0011] Preferably, the holding section surface is provided with anti-skid lines.

[0012] Preferably, the holding section is provided with a flat surface on one side thereof along the extension direction thereof.

[0013] Preferably, the detection section is configured as a cylinder with a length of 4mm and a diameter of 2.815-0.002.

[0014] The front end of the detection section is provided with a 120° chamfer with a length of 1mm.

[0015] The utility model at least includes the following beneficial effects: through set up the plug gauge as the measurement check frock can directly insert the cooperation hole and detect, judge the wear condition through whether can insert, effectively improve the repair efficiency, reduce the work requirement to the maintenance personnel, and the plug gauge size, roughness is designed to the cooperation hole diameter and material quality, satisfies the accuracy requirement of measurement, reduces the wear and tear while avoids the surface adsorption impurity, its judgment is more accurate, avoids the misjudgment, is little by the maintenance personnel operation influence.

[0016] Other advantages, objects and features of the utility model will be partly embodied through the following description, and will be partly understood by the person skilled in the art through the research and practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structural diagram of the cooperation hole of the zero stage blade and rocker arm of the turboshaft engine in an embodiment of the utility model;

[0018] Figure 2 It is the front view of the measurement check frock of the cooperation hole of the zero stage blade and rocker arm of the turboshaft engine in an embodiment of the utility model;

[0019] Figure 3 It is the side view of the measurement check frock of the cooperation hole of the zero stage blade and rocker arm of the turboshaft engine in an embodiment of the utility model.

[0020] Mark in the drawing: 1, holding section, 11, flat surface, 2, transition section, 3, detection section, 31, chamfer, 4, rocker arm, 41, cooperation hole. DETAILED DESCRIPTION

[0021] The utility model will be further explained in detail in combination with the drawings, so that the person skilled in the art can implement according to the description text.

[0022] It should be understood that the terms such as "have", "contain" and "include" used herein do not list the presence or addition of one or more other elements or combinations thereof.

[0023] It should be noted that in the description of the utility model, the orientation or position relationship indicated by the terms is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood broadly, for example, "connected" can be fixed connection, can also be detachable connection, or integral connection, can be mechanical connection, can also be electrical connection, can be direct connection, can also be indirect connection through an intermediate medium, can be internal communication of two elements, and for ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] In addition, in the utility model, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact of the first and second features, or indirect contact of the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0026] Embodiment 1

[0027] A kind of measurement inspection tooling of zero stage blade of turboshaft engine and rocker arm 4 cooperation hole 41, its structure as shown in Figures 1-2 It includes: plug gauge including holding section 1 and detection section 3;

[0028] Conical transition section 2 is equipped between the holding section 1 and detection section 3;When using, avoid that the diameter difference between holding section 1 and detection section 3 is too large to block the line of sight, and the strength of the connection of holding section 1 and detection section 3 can be improved;

[0029] The detection section 3 is configured as a cylinder, and its diameter is matched with the aperture of the cooperation hole 41 of zero stage blade and rocker arm 4;

[0030] The roughness of the detection section 3 is configured as 1.6 μm.

[0031] Working principle: The measuring and inspection fixture, namely the plug gauge, is used by holding the grip section 1 of the plug gauge and measuring the fit between the front end 3 of the plug gauge and the mating hole 41 on the journal of the zero-stage blade rocker arm 4. If the gauge fails to pass through, the wear is within the process specification; if it passes through, the wear exceeds the process specification, and the zero-stage blade is discontinued. This measuring and inspection fixture (plug gauge) is designed to inspect the dimensions of the zero-stage blade journal and the mating hole 41 of the rocker arm 4, thus pre-screening unqualified blade parts and eliminating the need for repeated disassembly and assembly.

[0032] By setting a plug gauge as a measuring and inspection tool, it can be directly inserted into the mating hole 41 for inspection. The wear condition can be directly judged by whether it can be inserted, which effectively improves maintenance efficiency and reduces the work requirements of maintenance personnel. Moreover, the size and roughness of the plug gauge are designed for the diameter and material of the mating hole 41 to meet the accuracy requirements of measurement, reduce wear and avoid surface adsorption of impurities. Its judgment is more accurate, avoids misjudgment, and is less affected by the operation of maintenance personnel.

[0033] Example 2

[0034] This second embodiment is a preferred embodiment of the present invention, and its specific structure is as follows: Figures 1-2 As shown, based on embodiment 1, the following improvement is disclosed: the surface of the grip section 1 is provided with anti-slip texture.

[0035] In practical applications, the anti-slip texture is configured in a grid pattern.

[0036] Working principle: Improves grip comfort and prevents the grip section 1 of the plug gauge from slipping and falling during operation, thus avoiding damage to the plug gauge.

[0037] Example 3

[0038] This embodiment 3 is a preferred embodiment of the present utility model, and it discloses the following improvement based on embodiment 1: a plane 11 is provided on one side of the gripping section 1 along its extension direction.

[0039] In practical applications, the plane 11 is engraved with a drawing number to identify and facilitate its identification and management.

[0040] Working principle: The flat surface 11 facilitates storage and management, makes it easy to engrave drawing numbers, and prevents the cylindrical grip section 1 from falling off due to rolling.

[0041] Example 4

[0042] This embodiment 4 is a preferred embodiment of the present invention, and its specific structure is as follows: Figure 3 As shown, based on embodiment 1, the following improvement is disclosed: the detection segment 3 is configured as a cylinder with a length of 4 mm and a diameter of 2.815-0.002.

[0043] The detection section 3 is provided with a 120° chamfer 31 at the front end with a length of 1mm.

[0044] In actual application, a cylindrical GCr15 with a length of 50mm and a diameter of 8mm is selected as the reference machining material, the front end of 12mm is used to machine the conical surface, the front end of 4mm is machined into a cylinder with a diameter of 2.815-0.002, and the front end of 1mm is chamfered 120°. Surface treatment: chrome plating, heat treatment: 58-63HRC. The roughness of the front end of 4mm is 1.6μm, and the roughness of the rest is 3.2μm. The front end of 4mm is the key size part, and the verification period is every 12 months to ensure its accuracy.

[0045] The size is appropriate for holding, the hardness of the plug gauge is suitable for the mating hole 41, the roughness requirements of different parts are different, the processing difficulty is reduced while meeting the comfort and measurement accuracy, the precision of the detection section 3 is avoided from being insufficient or the holding section 1 is avoided from slipping, so as to meet the working requirements.

[0046] The above schemes are only a description of a preferred example, but are not limited thereto. In the implementation of the present application, appropriate replacement and / or modification can be made according to the needs of the user.

[0047] The number of devices and the processing scale described herein are used to simplify the description of the present application. The application, modification and change of the present application are obvious to those skilled in the art.

[0048] Although the embodiments of the present application have been disclosed as above, it is not limited to the application and the embodiments listed in the specification. It can be fully applied to various fields suitable for the present application. Additional modifications can be easily realized by those skilled in the art. Therefore, the present application is not limited to specific details and the figures shown and described herein without departing from the general concept defined by the claims and the equivalent scope.

Claims

1. A measuring and checking tool for the zero level blade and rocker arm cooperation hole of a turboshaft engine, characterized in that, Comprise: A plug gauge comprising a holding section and a detecting section; A tapered transition section is arranged between the holding section and the detecting section; The detecting section is configured as a cylinder, and its diameter is matched with the aperture of the matching hole of the zero-level blade and the rocker arm; The roughness of the detecting section is configured as 1.6μm.

2. The inspection tool for measuring the zero stage vane and rocker arm fitting hole of the turboshaft engine as claimed in claim 1, wherein, The surface of the holding section is provided with anti-skid lines.

3. The inspection tool for the zero stage vane and rocker arm mating hole of a turboshaft engine as in claim 1, wherein, One side of the holding section is provided with a plane along its extension direction.

4. The inspection tool for the zero stage vane and rocker arm mating hole of a turboshaft engine as in claim 1, wherein, The detecting section is configured as a cylinder with a length of 4mm and a diameter of Φ2.815-0.002; The front end of the detecting section is provided with a 120° chamfer with a length of 1mm.

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