CN210707857U

CN210707857U - Pointer mechanism of small airplane trim wheel

Info

Publication number: CN210707857U
Application number: CN201921631238.9U
Authority: CN
Inventors: 肖顺义
Original assignee: Harbin Laite Brothers Technology Development Co ltd
Current assignee: Harbin Laite Brothers Technology Development Co ltd
Priority date: 2019-09-28
Filing date: 2019-09-28
Publication date: 2020-06-09
Anticipated expiration: 2029-09-28

Abstract

The utility model discloses a pointer mechanism of a balancing wheel of a small airplane, which comprises a hand wheel and a pointer, wherein the inner wall of the hand wheel is fixedly connected with a spiral wheel, the helical wheel is rotatably provided with an installation frame through a handwheel rotating shaft, the front end of the installation frame is rotatably provided with a pointer through a pointer rotating shaft, the upper end of the pointer is embedded and installed on the inner wall of the spiral wheel in a sliding way, the installation frame is fixedly connected with an external part through an anti-seismic screw, the anti-seismic screw comprises a fastening main body and a pad body, the pad body is movably sleeved and mounted on the outer wall of the rear part of the fastening main body, the fastening main body comprises a knob, a threaded column, a first spring, a leather sheath and a first baffle ring, the front end of the threaded column is fixedly connected with the rear end of the knob, the rear end fixed connection of first spring keeps off the front end of ring, the front end fixed connection of first spring is at the rear end of knob. The utility model discloses simple structure quick detachable maintenance has prolonged life simultaneously, better satisfying the use needs.

Description

Pointer mechanism of small airplane trim wheel

Technical Field

The utility model relates to a flat wheel pointer equipment technical field specifically is a little aircraft trim wheel pointer mechanism.

Background

The existing balancing device is integrated with a throttle lever, a mixing ratio lever and a tail vane on a center console in a balancing way. If a certain part is damaged during balancing, the whole center console needs to be disassembled, and the structure is complex, the processing cost is high, and the assembly is complex; and no damping part is arranged between the existing balancing device and the support used by the balancing device, when a small airplane lands, the balancing device is easy to vibrate and damage, and the service life of the balancing device can be shortened after long-term use, so that a device capable of solving the problems is urgently needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a little aircraft trim wheel pointer mechanism to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a little aircraft trim wheel pointer mechanism, includes hand wheel and pointer, the inner wall fixedly connected with helical wheel of hand wheel, the helical wheel passes through hand wheel rotation of rotation axis and installs the mounting bracket, the pointer is installed through pointer rotation of rotation axis to the front end of mounting bracket, the inner wall at the helical wheel is installed in the slip scarf joint of the upper end of pointer, the mounting bracket passes through antidetonation screw and external part fixed connection.

Preferably, the anti-seismic screw comprises a fastening main body and a pad body, and the pad body is movably sleeved on the outer wall of the rear part of the fastening main body.

Preferably, the fastening main part includes knob, screw thread post, first spring, leather sheath and first fender ring, the front end fixed connection of screw thread post is in the rear end of knob, the rear end fixed connection of first spring is in the front end of first fender ring, the front end fixed connection of first spring is in the rear end of knob, the front end fixed connection of leather sheath is at the rear end center of knob, the leather sheath is located the inboard of first spring and first fender ring.

Preferably, the cushion body comprises a second spring, a second retaining ring and a cushion ring, the front end of the second spring is fixedly connected to the rear end of the second retaining ring, and the rear end of the second spring is fixedly connected to the front end of the cushion ring.

Preferably, the inner wall of the backing ring is movably sleeved on the outer wall of the leather sheath, and the leather sheath is movably inserted into the side end hole of the mounting frame.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the hand wheel is driven to rotate by a hand, the spiral wheel is driven to rotate by the hand wheel, an Archimedes spiral groove is formed in the spiral wheel, the Archimedes spiral groove is a fastening main body ring, the initial angle is set as degree, when the spiral wheel rotates, the upper end of the pointer slides in the spiral groove to work, the pointer rotates by the distance change of the spiral groove, data are obtained by visual inspection of an external dial after the pointer rotates, and the precondition of observation is met; through antidetonation screw with device and plus fixed equipment fixed mounting, utilize the vertical harmful vibrations of the material compliance buffer of leather sheath, utilize first spring and second spring buffering horizontal direction effort, reach the vibrations harm through antidetonation screw reduction device, the effective life of device has been improved, moreover, the steam generator is simple in structure, easy processing, and is low in cost, can realize each control rod modularized design of little aircraft center console, can realize the speed reduction ratio that forty-eight is than one or bigger speed reduction ratio in limited space, the dismouting of being convenient for, be convenient for maintain.

Drawings

FIG. 1 is a schematic view of the main structure of the present invention;

FIG. 2 is a schematic view of the anti-seismic screw of the present invention;

fig. 3 is an exploded view of the fastening main body of the present invention;

fig. 4 is an exploded view of the cushion body of the present invention.

In the figure: 1. a hand wheel; 2. a pointer; 3. a mounting frame; 4. a helical wheel; 5. a handwheel rotating shaft; 6. a pointer rotation shaft; 7. anti-seismic screws; 8. a fastening body; 9. a cushion body; 10. a knob; 11. a threaded post; 12. a first spring; 13. a leather sheath; 14. a first retainer ring; 15. a second spring; 16. a second retainer ring; 17. a backing ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: a pointer mechanism of a trim wheel of a small airplane comprises a hand wheel 1 and a pointer 2, wherein the inner wall of the hand wheel 1 is fixedly connected with a spiral wheel 4, the spiral wheel 4 is rotatably provided with an installation frame 3 through a hand wheel rotating shaft 5, the front end of the installation frame 3 is rotatably provided with the pointer 2 through a pointer rotating shaft 6, the upper end of the pointer 2 is slidably embedded and arranged on the inner wall of the spiral wheel 4, the installation frame 3 is fixedly connected with an external part through an anti-seismic screw 7, the hand wheel 1 is driven to rotate by a hand, the hand wheel 1 rotates to drive the spiral wheel 4 to rotate, an Archimedes spiral groove is arranged in the spiral wheel 4, the Archimedes spiral groove is arranged as a fastening main body for 8 circles, the initial angle is 180 degrees, when the spiral wheel 4 rotates, the upper end of the pointer 2 slides in the spiral groove to work, the pointer 2 is rotated through the distance change of the spiral groove, and data are obtained through visual inspection of the pointer by means of the external dial after the pointer is rotated, so that the observation precondition is met; the device and the additional fixing equipment are fixedly installed through the anti-seismic screws 7, the longitudinal harmful vibration of the material softness buffering device of the leather sheath 13 is utilized, the horizontal acting force is buffered through the first spring 12 and the second spring 15, the vibration damage of the device is reduced through the anti-seismic screws 7, and the effective service life of the device is prolonged.

The anti-seismic screw 7 comprises a fastening main body 8 and a cushion body 9, the cushion body 9 is movably sleeved and installed on the outer wall of the rear part of the fastening main body 8, the structure is simple, the processing is easy, the cost is low, the modular design of each control rod of a central console of a small airplane can be realized, the speed reduction ratio of forty-eight to one or larger can be realized in a limited space, the disassembly and the maintenance are convenient, the fastening main body 8 comprises a knob 10, a threaded column 11, a first spring 12, a leather sheath 13 and a first baffle ring 14, the front end of the threaded column 11 is fixedly connected to the rear end of the knob 10, the rear end of the first spring 12 is fixedly connected to the front end of the first baffle ring 14, the front end of the first spring 12 is fixedly connected to the rear end of the knob 10, the front end of the leather sheath 13 is fixedly connected to the center of the rear end of the knob 10, the leather sheath 13 is positioned on the inner sides of the first spring 12, the front end fixed connection of second spring 15 keeps off the rear end of ring 16, and the rear end fixed connection of second spring 15 is at the front end of backing ring 17, and the outer wall at leather sheath 13 is installed in the inner wall activity cup joint of backing ring 17, and leather sheath 13 activity is alternate in the side of mounting bracket 3 downthehole.

The working principle is as follows: the hand wheel 1 is driven to rotate by a hand, the spiral wheel 4 is driven to rotate by the rotation of the hand wheel 1, an Archimedes spiral groove is formed in the spiral wheel 4, the Archimedes spiral groove is 8 circles of a fastening main body, the starting angle is 180 degrees, when the spiral wheel 4 rotates, the upper end of the pointer 2 slides in the spiral groove to work, the pointer 2 rotates by the distance change of the spiral groove, data are obtained by visual inspection of an additional dial after the pointer rotates, and the precondition of observation is met; the device and the additional fixing equipment are fixedly installed through the anti-seismic screws 7, the longitudinal harmful vibration of the material softness buffering device of the leather sheath 13 is utilized, the horizontal acting force is buffered through the first spring 12 and the second spring 15, the vibration damage of the device is reduced through the anti-seismic screws 7, and the effective service life of the device is prolonged.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a little aircraft trim wheel pointer mechanism, includes hand wheel (1) and pointer (2), its characterized in that: the inner wall fixedly connected with helix wheel (4) of hand wheel (1), helix wheel (4) are rotated through hand wheel rotation axis (5) and are installed mounting bracket (3), pointer (2) are installed in the front end of mounting bracket (3) through pointer rotation axis (6) rotation, the inner wall at helix wheel (4) is installed in the slip scarf joint of the upper end of pointer (2), mounting bracket (3) are through antidetonation screw (7) and external part fixed connection.

2. The small aircraft trim wheel pointer mechanism of claim 1, wherein: the anti-seismic screw (7) comprises a fastening main body (8) and a pad body (9), wherein the pad body (9) is movably sleeved and mounted on the outer wall of the rear part of the fastening main body (8).

3. A small aircraft trim wheel pointer mechanism according to claim 2, wherein: fastening main part (8) include knob (10), screw thread post (11), first spring (12), leather sheath (13) and first fender ring (14), the front end fixed connection of screw thread post (11) is in the rear end of knob (10), the rear end fixed connection of first spring (12) is at the front end of first fender ring (14), the front end fixed connection of first spring (12) is in the rear end of knob (10), the front end fixed connection of leather sheath (13) is at the rear end center of knob (10), leather sheath (13) are located the inboard of first spring (12) and first fender ring (14).

4. A small aircraft trim wheel pointer mechanism according to claim 2, wherein: the cushion body (9) comprises a second spring (15), a second retaining ring (16) and a cushion ring (17), the front end of the second spring (15) is fixedly connected to the rear end of the second retaining ring (16), and the rear end of the second spring (15) is fixedly connected to the front end of the cushion ring (17).

5. The small aircraft trim wheel pointer mechanism of claim 4, wherein: the inner wall activity of backing ring (17) is cup jointed and is installed the outer wall at leather sheath (13), leather sheath (13) activity interlude is downthehole at the side of mounting bracket (3).