CN107985554B

CN107985554B - Self-resetting turning mechanism

Info

Publication number: CN107985554B
Application number: CN201711269855.4A
Authority: CN
Inventors: 付昌发
Original assignee: Guizhou Huayang Electrical Co ltd
Current assignee: Guizhou Huayang Electrical Co ltd
Priority date: 2017-12-05
Filing date: 2017-12-05
Publication date: 2021-03-09
Anticipated expiration: 2037-12-05
Also published as: CN107985554A

Abstract

The invention discloses a self-resetting turning mechanism, which comprises a hand wheel (1), a rotating shaft (5) and a dial (8), and is characterized in that: hand wheel (1) fixed connection is at pivot (5) top, pivot (5) outside cover is equipped with calibrated scale (8) and pivot (5) can do the rotation of certain angular range in calibrated scale (8), torsional spring (10) are installed between spacing bush (9) and pivot (5), spacing bush (9) and pivot (5) fixed connection, and spacing bush (9) are arranged in calibrated scale (8), the bottom of pivot (5) is provided with spline tooth (14), hand wheel (1) middle part is fixed on pivot (5) through screw A (2), interior spline piece (3) suit is at the top of pivot (5) and is fixed on hand wheel (1) through screw B (4), be provided with left extreme position a on calibrated scale (8), neutral position B, right extreme position c. The invention is simple and reliable, flexible and convenient to operate, and is suitable for popularization and use of self-resetting turning.

Description

Self-resetting turning mechanism

Technical Field

The invention belongs to the technical field of turning devices, and particularly relates to a self-resetting turning mechanism.

Background

The turning hand wheel is used as the most common turning device and is widely applied to the industries of aerospace, aviation, war industry, automobiles, machinery and the like. However, in conventional aircraft turning systems, the turning hand wheel is not automatically centering. The transmission turning hand wheel has the following defects: 1. the structure is complex; 2. the automatic centering can not be realized; 3. the processing precision of the parts is high, and the difficulty is high; 4. the operation is convenient and the comfort is poor. The existence of the problems greatly influences the reliability, flexibility and comfort of the aircraft cabin control system.

Disclosure of Invention

The invention aims to overcome the defects and provide a simple and reliable self-resetting turning mechanism which is flexible to operate, feasible to machine, comfortable and stable.

The purpose of the invention and the main technical problem of solving the invention are realized by adopting the following technical scheme:

the invention relates to a self-resetting turning mechanism, which comprises a hand wheel, a rotating shaft and a dial, wherein: hand wheel fixed connection is at the pivot top, and the outside cover of pivot is equipped with calibrated scale and pivot and can make the rotation of certain angle scope in the calibrated scale, and the torsional spring is installed between limit bushing and pivot, and limit bushing and pivot fixed connection, and in limit bushing arranged the calibrated scale in, the bottom of pivot is provided with the spline tooth.

The self-resetting turning mechanism comprises: the middle part of the hand wheel is fixed on the rotating shaft through a screw A, and the inner spline block is sleeved on the outer peripheral surface of the top of the rotating shaft and is fixed on the hand wheel through a screw B.

The self-resetting turning mechanism comprises: the dial is provided with a left limit position a, a neutral position b, and a right limit position c.

The self-resetting turning mechanism comprises: the rotating shaft is arranged in the dial through a bearing A, a limiting bush and a bearing B, the bearing A is arranged on the top surface of the limiting bush, the check ring is arranged on the outer end surface of the bearing A, and the bottom surface of the limiting bush is positioned through a step surface on the rotating shaft; the bearing B is arranged at the lower part of the dial, and the stop block is arranged at the outer side of the bearing B.

The self-resetting turning mechanism comprises: the rotating shaft is connected with the limiting bush through a rivet.

Compared with the prior art, the invention has obvious advantages and beneficial effects. According to the technical scheme, in the self-resetting turning mechanism, the hand wheel is fixedly connected to the top of the rotating shaft, the middle part of the hand wheel is fixed on the rotating shaft through the screw A, the inner spline block is sleeved on the outer peripheral surface of the top of the rotating shaft and is fixed on the hand wheel through the screw B, and the rotation of the rotating shaft driven by the hand wheel is realized, so that the self-resetting turning mechanism is stable and reliable; the dial is provided with a left limit position a, a neutral position b and a right limit position c, so that the rotating shaft can rotate in a certain angle range in the dial; the torsion spring is arranged between the limiting bush and the rotating shaft, so that the hand wheel automatically returns to a neutral position after rotating; the bottom of pivot is provided with the spline tooth, and the spline tooth end is connected with the cornering system, is convenient for output angle displacement. In a word, the invention is simple and reliable, flexible and convenient to operate, feasible to process, comfortable and stable, and is suitable for popularization and use of self-resetting turning.

Drawings

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

FIG. 2 is a left side view of FIG. 1;

fig. 3 is a top view of fig. 2.

The labels in the figure are:

1. a hand wheel; 2. a screw A; 3. an internal spline block; 4. a screw B; 5. a rotating shaft; 6. a retainer ring; 7. a bearing A; 8. a dial scale; 9. a limiting bush; 10. a torsion spring; 11. riveting; 12. a bearing B; 13. a stopper; 14 spline teeth.

Detailed Description

The following detailed description of embodiments, structures, features and effects of the self-resetting turning mechanism according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Referring to fig. 1 to 3, the self-resetting turning mechanism of the present invention includes a hand wheel 1, a rotating shaft 5, and a dial 8, and is characterized in that: hand wheel 1 fixed connection is at 5 tops of pivot, and 5 outside covers of pivot are equipped with calibrated scale 8 and pivot 5 can do the rotation of certain angle scope in calibrated scale 8, and torsional spring 10 installs between spacing bush 9 and pivot 5, and spacing bush 9 and pivot 5 fixed connection, and spacing bush 9 arranges in calibrated scale 8, and the bottom of pivot 5 is provided with spline tooth 14. The middle part of the hand wheel 1 is fixed on the rotating shaft 5 through a screw A2, and the inner spline block 3 is sleeved on the outer peripheral surface of the top part of the rotating shaft 5 and is fixed on the hand wheel 1 through a screw B4. The dial 8 is provided with a left limit position a, a neutral position b, and a right limit position c. The rotating shaft 5 is arranged in the dial 8 through a bearing A7, a limiting bush 9 and a bearing B12, the bearing A7 is arranged on the top surface of the limiting bush 9, the retainer ring 6 is arranged on the outer end surface of the bearing A7, and the bottom surface of the limiting bush 9 is positioned through a step surface on the rotating shaft 5; the bearing B12 is arranged at the lower part of the dial 8, and the stop 13 is arranged at the outer side of the bearing B12. The rotating shaft 5 is connected with the limiting bush 9 through a rivet 11.

When the hand wheel 1 is rotated by force, the limiting bushing 9 overcomes the force of the torsion spring 10 to rotate, and the spline teeth 14 at the bottom of the rotating shaft 5 output angular displacement and transmit the angular displacement to a turning system; when the hand wheel 1 is released, the hand wheel 1 can automatically return to the neutral position under the action of the torsion spring 10. The invention has the advantages of simplicity, reliability, flexible and convenient operation, feasible processing, comfort and stability, and is suitable for popularization and use of self-resetting turning.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are within the scope of the present invention without departing from the technical spirit of the present invention.

Claims

1. The utility model provides a from reset turn mechanism, includes hand wheel (1), pivot (5), calibrated scale (8), its characterized in that: the hand wheel (1) is fixedly connected to the top of the rotating shaft (5), the rotating shaft (5) is sleeved with the dial (8) in a sleeved mode, the rotating shaft (5) can rotate within a certain angle range in the dial (8), the torsion spring (10) is installed between the limiting bush (9) and the rotating shaft (5), the limiting bush (9) is fixedly connected with the rotating shaft (5), the limiting bush (9) is arranged in the dial (8), the spline teeth (14) are arranged at the bottom of the rotating shaft (5), the rotating shaft (5) is installed in the dial (8) through the bearing A (7), the limiting bush (9) and the bearing B (12), the bearing A (7) is installed on the top surface of the limiting bush (9), the retainer ring (6) is installed on the outer end face of the bearing A (7), and the bottom face of the limiting bush (9) is located through a step face on the; the bearing B (12) is arranged at the lower part of the dial (8), and the stop block (13) is arranged at the outer side of the bearing B (12).

2. The self-resetting turning mechanism of claim 1, wherein: the middle part of the hand wheel (1) is fixed on the rotating shaft (5) through a screw A (2), and the inner spline block (3) is sleeved on the outer peripheral surface of the top of the rotating shaft (5) and is fixed on the hand wheel (1) through a screw B (4).

3. The self-resetting turning mechanism of claim 1, wherein: the dial (8) is provided with a left limit position a, a neutral position b and a right limit position c.

4. The self-resetting turning mechanism of claim 1, wherein: the rotating shaft (5) is connected with the limiting bush (9) through a rivet (11).