Meshing clearance measuring device for bevel gear pair of central transmission casing of plane under loading
A technology of transmission casing and bevel gear pair is applied in the field of gear transmission assembly measurement of the central transmission casing of the aircraft, which can solve the problems such as the inability to detect the meshing clearance under load, and achieve the effects of simple structure, simple load simulation structure and simple operation.
Active Publication Date: 2015-03-25
CHENGDU ENGINE GROUP
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Problems solved by technology
[0003] Aiming at the present situation and deficiency of the existing measuring device for the meshing gap of the gear transmission pair, the purpose of the present invention is to provide a convenient and flexible, easy-to-handle measuring device for the meshing gap under the load of the bevel gear pair in the central transmission casing of the aircraft, so as to solve the existing problems. The problem that the advanced gear transmission pair mesh gap measurement device cannot detect the mesh gap under load
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Embodiment 1
[0030] The device for measuring the meshing gap under the load of the bevel gear pair of the central transmission case of the aircraft provided by this embodiment has a structure as attached figure 1As shown in the figure, it is composed of the first measuring device I, which is installed on the central transmission case III, which is perpendicular to the direction of the gear end face, and acts axially on the driving bevel gear II, and the second measuring device V which axially acts on the driven bevel gear IV. , the first measuring device I and the second measuring device V are fixedly installed on the central transmission casing through connecting bolts.
[0031] The structure of the first measuring device is as attached Figure 5 As shown, the first frame 9, the first rod shaft 30 that can move partially axially and not rotate relative to the first frame, the active bevel gear elastic clamping mechanism, the first axial internal pressure mechanism, the first axial The pu...
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The invention discloses a meshing clearance measuring device for a bevel gear pair of a central transmission casing of a plane under loading. The meshing clearance measuring device mainly comprises a first measurer and a second measurer, wherein the first measurer is mounted on the casing, perpendicular to an end face direction of a driving bevel gear, and axially actuates the driving bevel gear; the second measurer is mounted on the casing, perpendicular to an end face direction of a driven bevel gear, and axially actuates the driven bevel gear; the first measurer and the second measurer both comprise housing frames, rod shafts capable of moving locally and axially relative to the housing frames and incapable of rotating, gear clamping mechanisms, axial inward pressing mechanisms, and axial outward pulling mechanisms; the gear clamping mechanisms are fixedly mounted on the rod shafts; the axial inward pressing mechanisms and the axial outward pulling mechanisms consist of springs, shaft sleeves fixed with the housing frames and spring seats for driving the gear clamping mechanisms to move axially; the rod shafts are sleeved with the springs; and nuts, the springs and the spring seats for forming the axial inward pressing mechanisms and the axial outward pulling mechanisms are arranged in opposite directions. The meshing clearance measuring device solves the problem that the meshing clearance measuring device for the bevel gears in the prior art cannot detect a meshing clearance under the loading.
Description
technical field [0001] The invention relates to an aircraft central transmission case gear transmission assembly measurement technology, in particular to a device for detecting the meshing clearance of bevel gear pairs in the central transmission case under rated load force. Background technique [0002] Gear transmission is an indispensable form of transmission in mechanical transmission, and the meshing gap of the gear not only affects the stability of the mechanical transmission, but also affects the stability of the control system. If the gap is too large, it will cause the control system to vibrate and reduce the Therefore, important gear transmission mechanisms need to detect the meshing clearance of the gear transmission pair before being put into use. The meshing gap detection in the prior art is through the measuring device, one gear in the gear pair is fixed, and then the other gear is rotated, the meshing gap value of the gear transmission pair is converted into t...
Claims
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IPC IPC(8): G01B5/14G01M13/02
Inventor 周海峰姜宝华朱华仙黄健王平吴天贵
Owner CHENGDU ENGINE GROUP