CN-224215996-U - Auxiliary measuring device for outline dimension of aviation rotor engine

CN224215996UCN 224215996 UCN224215996 UCN 224215996UCN-224215996-U

Abstract

The utility model relates to an auxiliary measuring device for the external dimension of an aero-rotor engine, which belongs to the technical field of measurement of aero-engines, and is characterized in that a positioning seat is arranged on a bottom plate and used for positioning and mounting the engine, a movable length-width limiting mechanism is arranged on the bottom plate to realize the length-width measurement of the engine, and a height limiting mechanism is arranged on the bottom plate to realize the height measurement of the engine, so that the measurement of the length-width-height of the engine can be completed by one-time clamping of the measuring device, and the measuring precision of the external dimension of the aero-rotor engine is ensured.

Inventors

ZHANG FEI
XUE WUZHI
YAN KANG
Guan Fengtao

Assignees

西安爱生技术集团有限公司

Dates

Publication Date: 20260508
Application Date: 20250516

Claims (7)

1. Auxiliary measuring device of aviation rotor engine overall dimension, characterized by, include: the base plate is provided with a positioning device, and the engine is arranged on the base plate through the positioning device; The length-width limiting mechanisms are symmetrically and slidably arranged on the bottom plate, the mounting direction comprises the transverse direction or the longitudinal direction along the bottom plate, the two groups of length-width limiting mechanisms are used for measuring the length of the engine when being transversely arranged along the bottom plate, opposite end surfaces of the two groups of length-width limiting mechanisms are respectively contacted with two ends of the engine in the length direction, and the distance between the opposite end surfaces is the length of the engine; And the height limiting mechanism is vertically arranged on the bottom plate, the upper end of the height limiting mechanism is connected with the height limiting locating plate through the adjusting mechanism, the adjusting mechanism is used for adjusting the position of the height limiting locating plate in the vertical direction, when the height limiting locating plate is contacted with the top of the engine, the distance between the height limiting locating plate and the bottom plate is the height of the engine.
2. The auxiliary measuring device for the external dimensions of the aero-rotor engine according to claim 1, wherein the positioning device comprises a plurality of positioning seats, the positioning seats are fixedly arranged on a bottom plate, the installation positions of the positioning seats on the bottom plate correspond to the fixing holes on the engine one by one, the positioning seats are stepped shafts, the tops of the positioning seats are conical pin structures, and the conical pin structures play a guiding role in engine installation.
3. The auxiliary measuring device for the external dimensions of the aero-rotor engine according to claim 2, wherein the positioning seat is made of 30CrMnSiA and has Rockwell hardness HRC of 30-35.
4. The auxiliary measuring device for the external dimensions of the aero-rotor engine according to claim 2, wherein two transverse sliding grooves are formed in the base plate in parallel in the transverse direction, two longitudinal sliding grooves are formed in the base plate in parallel in the longitudinal direction, the distance between the two transverse sliding grooves is the same as the distance between the two longitudinal sliding grooves, and the transverse sliding grooves and the longitudinal sliding grooves are used for slidably mounting the length-width limiting mechanism.
5. The auxiliary measuring device for the overall dimension of the aero-rotor engine according to claim 4, wherein the length-width limiting mechanism comprises a positioning slide block and a limiting plate, two protruding blocks are arranged at the bottom of the positioning slide block, the two protruding blocks are correspondingly and slidably arranged in the two transverse sliding grooves or the two longitudinal sliding grooves, a groove is formed in the positioning slide block, and the limiting plate is vertically inserted into the groove and fixedly connected with the positioning slide block.
6. The auxiliary measuring device for the external dimensions of the aero-rotor engine according to claim 1, wherein the height limiting mechanism comprises a positioning column, the positioning column is vertically arranged on a bottom plate, the top end of the positioning column is of a threaded rod structure, the height limiting positioning plate is horizontally sleeved at the threaded rod at the top end of the positioning column in a sleeved mode, the adjusting mechanism comprises a pair of locking nuts, the pair of locking nuts are in threaded connection with the threaded rod at the top end of the positioning column, the height limiting positioning plate is clamped between the two locking nuts, and the installation height of the height limiting positioning plate on the positioning column is adjusted by screwing the locking nuts.
7. The auxiliary measuring device for the overall dimensions of the aircraft rotor engine according to claim 1, wherein a plurality of rubber seats are mounted on the bottom surface of the bottom plate, and the rubber seats are used for stably supporting the bottom plate.

Description

Auxiliary measuring device for outline dimension of aviation rotor engine Technical Field The utility model relates to the technical field of measurement of aero-engines, in particular to an auxiliary measuring device for the outline dimension of an aero-rotor engine. Background The rotor engine has the advantages of small volume, light weight, simple structure, high power density, uniform torque characteristic and the like, and is mainly applied to the fields of aviation, automobiles, power stations, auxiliary power equipment and the like. With the rapid development of unmanned aircraft, more than 30% of all small aircraft worldwide have adopted rotary engines in recent years. At present, the external dimension detection method of the rotor engine mostly adopts a universal measuring tool to directly measure, and the specific numerical value of the measured external dimension is compared with a dimension tolerance standard to judge the qualification of the external dimension. However, for the irregular engine, particularly for certain aviation rotor engines, the external dimension of the engine is difficult to directly measure by using a universal measuring tool due to the arrangement requirement of peripheral parts of the engine, and errors exist in the manufacturing and assembling processes of the peripheral parts, so that the external dimension of the engine is difficult to accurately measure. For the aero-rotor engine which needs mass production and 100% dimension detection, the existing dimension measurement method can not only meet the measurement precision requirement, but also has low measurement efficiency, and consumes large manpower and material resources. Therefore, an auxiliary device for measuring the external dimensions of the aero-rotor engine is required to be designed, the requirement of measuring precision is met, the measuring efficiency is improved, and the labor cost is saved. Disclosure of Invention The technical problems to be solved are as follows: In order to avoid the defects of the prior art, the utility model provides an auxiliary measuring device for the external dimensions of an aero rotor engine, which is characterized in that a positioning seat is arranged on a bottom plate to position and install the engine, a movable length and width limiting mechanism is arranged on the bottom plate to realize the length and width measurement of the engine, and a height limiting mechanism is arranged on the bottom plate to realize the height measurement of the engine, so that the length and width measurement of the engine can be completed by one-time clamping of the measuring device, and the measuring precision is ensured. The technical scheme of the utility model is that the auxiliary measuring device for the outline dimension of the aviation rotor engine comprises: the base plate is provided with a positioning device, and the engine is arranged on the base plate through the positioning device; The length-width limiting mechanisms are symmetrically and slidably arranged on the bottom plate, the mounting direction comprises the transverse direction or the longitudinal direction along the bottom plate, the two groups of length-width limiting mechanisms are used for measuring the length of the engine when being transversely arranged along the bottom plate, opposite end surfaces of the two groups of length-width limiting mechanisms are respectively contacted with two ends of the engine in the length direction, and the distance between the opposite end surfaces is the length of the engine; And the height limiting mechanism is vertically arranged on the bottom plate, the upper end of the height limiting mechanism is connected with the height limiting locating plate through the adjusting mechanism, the adjusting mechanism is used for adjusting the position of the height limiting locating plate in the vertical direction, when the height limiting locating plate is contacted with the top of the engine, the distance between the height limiting locating plate and the bottom plate is the height of the engine. The positioning device comprises a plurality of positioning seats, the positioning seats are fixedly arranged on a bottom plate, the installation positions of the positioning seats on the bottom plate correspond to the fixing holes of the engine one by one, the positioning seats are stepped shafts, the tops of the positioning seats are conical pin structures, and the conical pin structures play a role in guiding the installation of the engine. The utility model further adopts the technical scheme that the positioning seat is made of 30CrMnSiA and has Rockwell hardness HRC of 30-35. The utility model further adopts the technical scheme that two transverse sliding grooves are arranged on the bottom plate in parallel along the transverse direction, two longitudinal sliding grooves are arranged on the bottom plate in parallel along the longitudinal direction, the distance between the two transverse