Fixing device for speed reducer of air turbine starter

Abstract

The utility model relates to the technical field of aviation equipment detection, in particular to an air turbine starter speed reducer fixing device which comprises a working table, sliding grooves are symmetrically formed in the two sides of the top of the working table, an adjusting mechanism is arranged in an inner cavity of the working table, and fixing assemblies are arranged on the two sides of the top of the working table. The adjusting mechanism comprises a rotating block arranged in the inner cavity of the workbench, the bottom of the rotating block is rotationally connected with the bottom of the inner cavity of the workbench, a worm gear is fixedly connected to the middle of the top of the rotating block, a worm is arranged on the left side of the worm gear, and a rotating shaft is fixedly connected to the rear end of the worm. And connecting rods are rotationally connected to the left side and the right side of the top of the rotating block correspondingly, moving blocks are arranged on the left side and the right side of the rotating block correspondingly, guide sliding blocks are fixedly connected to the bottoms of the two moving blocks correspondingly, guide sliding grooves are formed in the left side and the right side of the bottom of an inner cavity of the workbench correspondingly, and speed reducers of different sizes can be rapidly fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of aviation equipment detection, in particular to a device for fixing a reducer of an air turbine starter. Background Art

[0002] The current air turbine starter needs to be equipped with a reducer. The function of the reducer is mainly to reduce the speed, increase the output torque, and reduce the inertia of the load. The working principle is that when the output speed of the turbine is input from the turbine shaft, it drives the planetary gears to rotate, and the planetary gears drive the large gear to move. The speed of the large gear is slower than that of the small gear, and then it is output by the shaft (output shaft) of the large gear, thereby playing the role of output reduction. However, the reducer needs to be inspected before installation, and the reducer needs to be clamped and fixed by a fixing fixture to facilitate the inspection work, but the existing fixing method of the fixing device is not convenient enough and is not suitable for reducers of different models. Utility Model Content

[0003] The utility model aims to provide an air turbine starter reducer fixing device to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] An air turbine starter reducer fixing device comprises a workbench, two sides of the top of the workbench are symmetrically provided with slide grooves, an inner cavity of the workbench is provided with an adjustment mechanism, and two sides of the top of the workbench are provided with fixing components;

[0006] The adjusting mechanism includes a rotating block arranged in the inner cavity of the workbench, the bottom of the rotating block is rotatably connected to the bottom of the inner cavity of the workbench, a worm wheel is fixedly connected to the middle of the top of the rotating block, a worm is arranged on the left side of the worm wheel, and the rear end of the worm is fixedly connected to a rotating shaft, the left and right sides of the top of the rotating block are rotatably connected to connecting rods, and moving blocks are arranged on the left and right sides of the rotating block, and the bottoms of the two moving blocks are fixedly connected to guide sliders, and guide grooves are opened on the left and right sides of the bottom of the inner cavity of the workbench, and the surfaces of the two guide sliders are slidably connected to the inner walls of the two guide grooves respectively.

[0007] As a preferred solution of the utility model, the worm wheel and the worm are meshingly connected, and the middle parts of the two moving blocks on opposite sides are respectively rotatably connected to the ends of the two connecting rods away from the rotating block.

[0008] As a preferred solution of the utility model, a drive motor is fixedly connected to the back of the workbench, the output end of the drive motor extends to the inner cavity of the workbench, and the end of the rotating shaft away from the worm is connected to the output end of the drive motor through a coupling.

[0009] As a preferred solution of the utility model, the tops of the two moving blocks extend to the top of the workbench through two sliding grooves respectively, and the side walls of the two moving blocks are slidably connected to the inner walls of the two sliding grooves.

[0010] As a preferred solution of the utility model, the fixing assembly includes fixing seats arranged on the left and right sides of the top of the workbench, the bottoms of the two fixing seats are slidably connected to the top of the workbench, and the middle parts of the bottoms of the two fixing seats are fixedly connected to the tops of the two moving blocks respectively.

[0011] As a preferred solution of the utility model, a bent fixing plate is provided on one side opposite to the two fixing seats, mounting grooves are provided at both ends of the fixing seats close to the bent fixing plate, sliding rods are provided inside the two mounting grooves, and the two ends of the two sliding rods are fixedly connected to the inner walls of the two mounting grooves respectively.

[0012] As a preferred solution of the utility model, the surfaces of the two sliding rods are slidably connected to sliders, one side of the two sliders is rotatably connected to a rotating rod, the ends of the two rotating rods away from the sliders are respectively rotatably connected to the two ends of the bent fixing plate close to the fixed seat, the surfaces of the two sliding rods are sleeved with springs, one end of the two springs are respectively fixedly connected to the surfaces of the two sliders, the other ends of the two springs are respectively fixedly connected to the inner walls of the two mounting grooves, and the structures of the two fixed seats and the bent fixing plates are symmetrically arranged.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, the rotating block can be rotated by driving the motor, the rotating shaft, the worm and the worm wheel, and the moving block is mobilized to slide by two connecting rods, so that the distance between the fixed components can be adjusted, which is convenient for fixing reducers of different models. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the top view of the adjusting mechanism of the utility model;

[0017] Figure 3 It is a schematic diagram of the top cross-sectional structure of the fixing component of the utility model.

[0018] In the figure: 1. workbench; 2. slide; 3. drive motor; 4. adjustment mechanism; 401. rotating block; 402. worm gear; 403. worm; 404. rotating shaft; 405. connecting rod; 406. moving block; 407. guide slider; 408. guide slide; 5. fixing assembly; 501. fixing seat; 502. bending fixing plate; 503. mounting groove; 504. slide rod; 505. slider; 506. spring; 507. rotating rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0023] For examples, see Figure 1 , Figure 2 , the utility model provides a technical solution:

[0024] A fixing device for an air turbine starter reducer comprises a workbench 1, wherein slide grooves 2 are symmetrically provided on both sides of the top of the workbench 1, an adjusting mechanism 4 is provided in the inner cavity of the workbench 1, and fixing components 5 are provided on both sides of the top of the workbench 1, the adjusting mechanism 4 comprises a rotating block 401 provided in the inner cavity of the workbench 1, the bottom of the rotating block 401 is rotatably connected to the bottom of the inner cavity of the workbench 1, a worm gear 402 is fixedly connected to the middle of the top of the rotating block 401, a worm 403 is provided on the left side of the worm gear 402, a rotating shaft 404 is fixedly connected to the rear end of the worm 403, connecting rods 405 are rotatably connected to the left and right sides of the top of the rotating block 401, moving blocks 406 are provided on the left and right sides of the rotating block 401, and guide slide blocks 407 are fixedly connected to the bottom of the two moving blocks 406, and guide slide grooves 408 are provided on the left and right sides of the bottom of the inner cavity of the workbench 1, and the surfaces of the two guide slide blocks 407 are respectively slidably connected to the inner walls of the two guide slide grooves 408.

[0025] like Figure 1 , Figure 2 As shown, the worm wheel 402 and the worm 403 are meshingly connected, the middle parts of the opposite sides of the two moving blocks 406 are respectively rotatably connected to the ends of the two connecting rods 405 away from the rotating block 401, the back of the workbench 1 is fixedly connected with a driving motor 3, the output end of the driving motor 3 extends to the inner cavity of the workbench 1, and the end of the rotating shaft 404 away from the worm 403 is connected to the output end of the driving motor 3 through a coupling, the tops of the two moving blocks 406 extend to the top of the workbench 1 through two slide grooves 2, and the side walls of the two moving blocks 406 are slidably connected to the inner walls of the two slide grooves 2.

[0026] like Figure 1 , Figure 3As shown, the fixing assembly 5 includes fixing seats 501 arranged on the left and right sides of the top of the workbench 1, the bottoms of the two fixing seats 501 are slidably connected to the top of the workbench 1, the middle parts of the bottoms of the two fixing seats 501 are fixedly connected to the tops of the two moving blocks 406 respectively, and the two fixing seats 501 are arranged on opposite sides with bent fixing plates 502, and the two ends of the fixing seats 501 close to the bent fixing plates 502 are provided with mounting grooves 503, and the interiors of the two mounting grooves 503 are provided with sliding rods 504, and the two ends of the two sliding rods 504 are fixedly connected to the inner walls of the two mounting grooves 503 respectively, and the two fixing seats 501 are provided with bent fixing plates 502. The surfaces of the sliding rods 504 are slidably connected with sliders 505, and one side of the two sliders 505 is rotatably connected with a rotating rod 507, and the ends of the two rotating rods 507 away from the sliders 505 are rotatably connected to the two ends of the bent fixing plate 502 close to the fixed seat 501. The surfaces of the two sliding rods 504 are sleeved with springs 506, one ends of the two springs 506 are respectively fixedly connected to the surfaces of the two sliders 505, and the other ends of the two springs 506 are respectively fixedly connected to the inner walls of the two mounting grooves 503, and the structures of the two fixed seats 501 and the bent fixing plate 502 are symmetrically arranged.

[0027] The working process of the utility model is as follows: when in use, the reducer is placed on the top of the workbench 1, and the driving motor 3 drives the worm 403 to rotate by using the rotating shaft 404. The worm 403 cooperates with the worm wheel 402 to drive the rotating block 401 to rotate, and the connecting rods 405 connected on both sides of the rotating block 401 can drive the two moving blocks 406 to approach each other, so that the two groups of fixing components 5 move toward the reducer until the two bent fixing plates 502 clamp the reducer to fix it, so as to fix reducers of different sizes. When the two bent fixing plates 502 contact the reducer, the rotating rod 507 can be used to push the slider 505 to slide on the surface of the slide rod 504 to squeeze the spring 506, buffer the impact force, and avoid the collision between the bent fixing plate 502 and the reducer to cause damage to the reducer. After the fixation is completed, the reducer can be inspected.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air turbine starter reducer fixing device, comprising a workbench (1), characterized in that: Slide grooves (2) are symmetrically provided on both sides of the top of the workbench (1); an adjustment mechanism (4) is provided in the inner cavity of the workbench (1); and fixing components (5) are provided on both sides of the top of the workbench (1); The adjusting mechanism (4) comprises a rotating block (401) arranged in the inner cavity of the workbench (1); the bottom of the rotating block (401) is rotatably connected to the bottom of the inner cavity of the workbench (1); a worm wheel (402) is fixedly connected to the middle of the top of the rotating block (401); a worm (403) is arranged on the left side of the worm wheel (402); a rear end of the worm (403) is fixedly connected to a rotating shaft (404); connecting rods (405) are rotatably connected to the left and right sides of the top of the rotating block (401); moving blocks (406) are arranged on the left and right sides of the rotating block (401); the bottoms of the two moving blocks (406) are fixedly connected to guide slide blocks (407); guide grooves (408) are provided on the left and right sides of the bottom of the inner cavity of the workbench (1); surfaces of the two guide slide blocks (407) are respectively slidably connected to the inner walls of the two guide grooves (408).

2. The air turbine starter reducer fixing device according to claim 1, characterized in that: The worm wheel (402) and the worm (403) are meshingly connected, and the middle parts of the two moving blocks (406) on opposite sides are respectively rotatably connected to the ends of the two connecting rods (405) away from the rotating block (401).

3. The air turbine starter reducer fixing device according to claim 1, characterized in that: A drive motor (3) is fixedly connected to the back of the workbench (1), the output end of the drive motor (3) extends to the inner cavity of the workbench (1), and one end of the rotating shaft (404) away from the worm (403) is connected to the output end of the drive motor (3) via a coupling.

4. The air turbine starter reducer fixing device according to claim 1, characterized in that: The tops of the two moving blocks (406) extend to the top of the workbench (1) through two slide grooves (2) respectively, and the side walls of the two moving blocks (406) are slidably connected to the inner walls of the two slide grooves (2).

5. The air turbine starter reducer fixing device according to claim 1, characterized in that: The fixing assembly (5) comprises fixing seats (501) arranged on the left and right sides of the top of the workbench (1), the bottoms of the two fixing seats (501) being slidably connected to the top of the workbench (1), and the middle parts of the bottoms of the two fixing seats (501) being fixedly connected to the tops of the two moving blocks (406) respectively.

6. The air turbine starter reducer fixing device according to claim 5, characterized in that: A bent fixing plate (502) is provided on one side opposite to the two fixing seats (501), and mounting grooves (503) are provided at both ends of the fixing seats (501) close to the bent fixing plate (502). Slide rods (504) are provided inside the two mounting grooves (503), and the two ends of the two slide rods (504) are respectively fixedly connected to the inner walls of the two mounting grooves (503).

7. The air turbine starter reducer fixing device according to claim 6, characterized in that: The surfaces of the two sliding rods (504) are slidably connected to sliders (505), one side of the two sliding rods (505) is rotatably connected to a rotating rod (507), one end of the two rotating rods (507) away from the sliders (505) is respectively rotatably connected to two ends of the bent fixing plate (502) close to the fixing seat (501), the surfaces of the two sliding rods (504) are sleeved with springs (506), one end of the two springs (506) is respectively fixedly connected to the surfaces of the two sliding rods (505), and the other ends of the two springs (506) are respectively fixedly connected to the inner walls of the two mounting grooves (503), and the structures of the two fixing seats (501) and the bent fixing plate (502) are symmetrically arranged.

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