CN113431875A

CN113431875A - Shaft type actuating equipment

Info

Publication number: CN113431875A
Application number: CN202110509655.1A
Authority: CN
Inventors: 钟成; 宋方
Original assignee: Xi'an Fangyuanming Technology Co ltd
Current assignee: Xi'an Fangyuanming Technology Co ltd
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2021-09-24

Abstract

The invention provides shaft type actuating equipment, and relates to the technical field of shaft type actuating equipment. The servo motor is decelerated by the planetary gear reducer and drives the central shaft to rotate through the gear box, the driving joint rotates along with the central shaft, and therefore the cylindrical pin is stirred to move, the cylindrical pin drives the driven joint to rotate, the driven support connected with the driven joint also rotates to a preset angle along with the driven joint and is reliably self-locked, and the rotary locking unit can be mechanically self-locked at a rotation starting position and a rotation stopping position. When the servo motor rotates reversely, the driving joint rotates reversely to drive the cylindrical pin to move reversely, and the driven support rotates reversely along with the driven joint and is mechanically self-locked at the initial position. The invention has small volume, light weight, reliable locking and enough strength, can provide larger torque to rotate a load with larger weight to a preset angle and reliably lock the load, can also reversely rotate, recover and lock the load, skillfully combines the rotation and the locking into a whole, and integrates the functions of electric rotation, mechanical locking and electric unlocking.

Description

Shaft type actuating equipment

Technical Field

The invention provides shaft type actuating equipment, relates to the technical field of electric actuation, and particularly relates to shaft type actuating equipment.

Background

With the development of national economic construction and national defense industry, a part of a structural member needs to be rotated to a preset angle and locked, and a shaft type actuating device which can be reversely rotated, restored and locked is required. Such shaft-type actuating devices require small dimensions, light weight, reliable locking and sufficient strength. Heretofore, although there have been many components having a function of rotating an object, such as hinges, etc. of doors and windows, the hinges and hinges themselves cannot lock the doors and windows at a certain position, and the doors and windows must be locked by means of another member such as a door stopper, a hook, a latch, or a gas spring. For the folding mechanism of the airplane wing, due to the limited space of the wing, an integrated mechanism of the loose-leaf locking is needed, the purposes of rotation and locking can be automatically achieved, and the requirements are also met by other machines. How to ensure that the structural member rotates to a preset angle and is locked, and the structure can reversely rotate, recover and lock, and simultaneously ensure small volume, light weight and reliable locking, is a problem which is urgently needed to be solved by shaft actuating equipment.

Disclosure of Invention

In order to solve the above problems of the prior art, the present invention provides a shaft type actuating apparatus to provide a large rotational torque in a case where an outer size thereof is small, to rotate a portion of a structural member to a predetermined angle and lock it, and to reversely rotate and restore and lock the structural member. The invention can be used for folding wings at two sides of a carrier-based aircraft and can also be used on other facilities which need to rotate and self-lock.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

the utility model provides an equipment is actuated to axle type which characterized in that: the driving device drives a planetary gear reducer to drive a gear to generate driving torque by adopting a servo motor, a driving joint, a driven joint, a fixed support, a driven support, a cylindrical pin, a central shaft, a fixed shaft 1 and a fixed shaft 2 are arranged in the rotary locking device, the driving torque is converted into the rotation erection, the rotation leveling and the self-locking of the driven support, and the connecting and installing accessories comprise a gear box, a fixed shaft and an end cover which are used for connecting and installing.

Furthermore, the servo motor and the planetary gear reducer are fixed on the upper right side of the gear box, and the two rotary locking devices are respectively fixed on the upper left side and the lower side of the gear box.

Furthermore, the driving joint is fixed on the central shaft, the driven joint and the fixed joint are sleeved on the central shaft, the three joints are arranged on the central shaft at intervals, the end part of the central shaft is limited by an end cover, the end cover is fixed on the central shaft by a screw to prevent the three joints from being separated, and the cylindrical pin penetrates through chutes of the three joints.

Furthermore, a fixed joint on the central shaft is connected with a fixed support through a fixed shaft 1, a driven joint is connected with a driven support (10) through a fixed shaft 2, and the cylindrical pin, the fixed shaft 1 and the end part of the fixed shaft 2 are limited by split pins.

Furthermore, the servo motor is decelerated by the planetary gear reducer and then drives the central shaft to rotate through the gear box, the driving joint rotates along with the central shaft, so that the cylindrical pin is stirred to move, the cylindrical pin drives the driven joint to rotate, and the driven support connected with the driven joint also rotates to a preset angle along with the cylindrical pin and is reliably self-locked.

Furthermore, the servo motor rotates reversely, so that the driving joint rotates reversely to drive the cylindrical pin to move reversely, and the driven support rotates reversely along with the driven joint and is mechanically self-locked at the initial position. The rotational speed of the rotational locking device can be adjusted by a servomotor.

Furthermore, the servo motor is connected with a planetary gear reducer, the planetary gear reducer is connected with a driving gear in a gear box, the driving gear and a driven gear are meshed with each other in the gear box, and two ends of the driven gear are respectively connected with the two rotary locking units.

The invention has the advantages of small volume, light weight, reliable locking, enough strength, capability of providing larger torque, rotating a load with larger weight to a preset angle and reliably locking the load, capability of reversely rotating, restoring and locking the load, skillfully combining rotation and locking, integrating electric rotation, mechanical locking and electric unlocking, novel structure and special structure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a front view of the structure of the present invention.

Fig. 2 is a side view of the structure of the present invention.

Fig. 3 is a structural view of the rotation locking unit of the present invention.

Fig. 4 is a view of the driving joint of the present invention.

FIG. 5 is a view of the fixed joint of the present invention.

FIG. 6 is a diagram of the starting position of the slave joint of the present invention.

FIG. 7 is a view of the termination position of the slave joint of the present invention.

Fig. 8 is a view of the initial position of the twist-lock unit of the present invention.

Fig. 9 is a view of the end position of the twist-lock unit of the present invention.

[ description of reference ]

1. A screw; 2. an end cap; 3, a drive joint; 4. a slave joint; 5. fixing the joint; 6. fixing a bracket; 7. a fixed shaft 1; 8. a central shaft; 9. a connecting pin; 10. a driven bracket; 11. a cotter pin; 12. a fixed shaft 2; 13. a servo motor; 14. a planetary gear reducer; 15. a reducer coupling; 16. paired angular contact bearings; 17. a bearing seat; 18. a gear case; 19. a driving gear; 20. a rotation locking unit; 21. a driven gear; 22. a single row angular contact bearing; 23. a bearing end cap; 24. a felt ring; 25. and (7) a cylindrical pin.

Detailed Description

For the purpose of better explaining the present invention to facilitate understanding, the present invention will be described in further detail by way of embodiments with reference to the accompanying drawings.

Referring to fig. 1 and 2, the present invention provides a shaft-type actuating apparatus, which may specifically include the following structure: a servo motor 13, a planetary gear reducer 14, a gear box 18 and a rotary locking unit 20, wherein the servo motor 13 is connected with the planetary gear reducer 14, a reducer connector 15 and a bearing seat 17 are fixed on the right upper side of the gear box 18 by screws, the output shaft of the planetary gear reducer 14 is connected with the inner hole of a driving gear 19, the inner ring of a paired angular contact bearing 16 is connected with the driving gear 19, the outer ring of the rotary locking unit is connected with a bearing seat 17, two rotary locking units 20 are respectively sleeved on shafts on two sides of a driven gear 21 and fastened by a connecting pin 9, single-row angular contact bearings 22 are arranged on two sides of the driven gear 21, the inner ring of the bearing is connected with the driven gear 21, the outer ring of the bearing is connected with a gear box 18, the outer ring of the single-row angular contact bearing 22 is positioned by a bearing transparent cover 23, a felt ring 24 is arranged in a circular groove of the bearing transparent cover 23 for dust prevention, and felt is padded at places needing sealing. The bearing and the gear are coated with low-temperature resistant aviation lubricating grease.

Referring to fig. 3, the rotation locking unit 20 is composed of a central shaft 8, a driving joint 3, a driven joint 4, a fixed joint 5, a cylindrical pin 25, a fixed bracket 6, a driven bracket 10, a fixed shaft 1(7), a fixed shaft 2(12), an end cover 2, a screw 1 and a cotter pin 11. The driving joint 3 is fixed in a straight groove of the excircle of the central shaft 8 by the bulge of the inner ring thereof, and the driving joint 3 can rotate along with the central shaft 8; the driven joint 4 and the fixed joint 5 are sleeved on the central shaft 8 and can rotate on the central shaft, the three joints are arranged on the central shaft 8 at intervals, the end part of the central shaft 8 is limited by the end cover 2, the top end of the central shaft 8 is provided with a screw hole, and the end cover 2 is fixed on the top end of the central shaft 8 by the screw 1 to prevent the three joints from being separated. The cylindrical pin 25 is inserted in the sliding grooves of the three joints. The fixed joint 5 is connected with the fixed bracket 6 through the fixed shaft 1(7), the driven joint 4 is connected with the driven bracket 10 through the fixed shaft 2(12), one end of the cylindrical pin 25, the fixed shaft 1(7) and the fixed shaft 2(12) is positioned by a shaft shoulder, and the other end is positioned by a cotter pin penetrating into the pin hole. The servo motor 13 is decelerated by the planetary gear reducer 14 and drives the central shaft 8 to rotate through the gear box 18, the joint 3 is driven to rotate along with the central shaft, and therefore the cylindrical pin 25 is stirred to move, the cylindrical pin 25 drives the driven joint 4 to rotate, and the driven support 10 connected with the driven joint 4 also rotates to a preset angle along with the cylindrical pin 25 and is reliably self-locked. The shape of the sliding groove of each joint determines the rotation angle of the rotation locking mechanism and enables the rotation locking unit to be mechanically self-locked at the rotation starting position and the rotation ending position. When the servo motor 13 rotates reversely, the driving joint 3 rotates reversely to drive the cylindrical pin 25 to move reversely, and the driven support 10 rotates reversely along with the driven joint 4 to achieve mechanical self-locking at the end position. The rotational speed of the rotational locking unit 20 can be adjusted by the servo motor 13.

Referring to fig. 4, the driving joint is a circular plate with a circular hole with a protrusion at the center for fixing on the central shaft. The circular plate is provided with three S-shaped sliding grooves, the painted circle in the drawing is a cylindrical pin, the position A is the starting position of the movement of the cylindrical pin, and the position B is the ending position of the movement of the cylindrical pin. The central shaft drives the driving joint to move, so that the cylindrical pin is driven to move from the position A to the position B in the S-shaped sliding groove. The S-shaped sliding groove is concave at the position A and concave at the position B, the cylindrical pin is blocked at the position A and cannot move, and the cylindrical pin is not blocked at the position B. The locking of the rotation locking unit in the starting position is a result of the cylindrical pin being blocked at the S-shaped slide a of the drive joint.

Referring to fig. 5, the fixed joint is a plate-shaped component with a circular hole at the center for rotating around the central shaft. The circular plate is provided with three S-shaped sliding grooves, the painted circle in the drawing is a cylindrical pin, the position A is the starting position of the movement of the cylindrical pin, and the position B is the ending position of the movement of the cylindrical pin. The S-shaped sliding groove is concave at the position A and concave at the position B, and the cylindrical pin is free from blocking at the position A and cannot move due to blocking at the position B. The locking of the rotation locking unit in the end position is a result of the cylindrical pin being blocked at the fixed joint S-shaped sliding groove B. The cylindrical pin moves from the position A to the position B, the driven bracket of the rotary locking unit rotates by 90 degrees, the rotary locking unit can rotate by 90 degrees, and the rotating angle can be adjusted according to the requirement during design. Two round holes on the right side of the fixed joint are fixed holes and are connected with the fixed support through a fixed shaft 1.

Referring to fig. 6, the slave joint is in the rotation start position. The driven joint is also a plate-shaped part, and the center of the driven joint is provided with a round hole for sleeving the central shaft to rotate. The circular plate is provided with three straight grooves, and the colored circles in the drawing are cylindrical pins. Two round holes on the left side of the driven joint are fixing holes and are connected with the driven bracket through a fixing shaft 2.

Referring to fig. 7, the slave joint is in the end of rotation position. The painted circles are cylindrical pins in the figure.

Referring to fig. 8, the rotation locking unit is in a rotation initial state, the cylindrical pin is located at the outer end of the sliding groove, and the S-shaped sliding groove of the driving joint is recessed inwards to lock the cylindrical pin;

referring to fig. 9, the rotation locking unit is in a rotation stop state, the cylindrical pin is located at the inner end of the sliding groove, at this time, the S-shaped sliding groove of the fixed joint is recessed inwards to lock the cylindrical pin, and the driven bracket rotates 90 degrees; the unlocking can be carried out only when the servo motor restarts forward rotation or reverse rotation, otherwise the external force can not unlock the lock.

In order to reduce the weight, on the premise of ensuring that parts of the rotary locking mechanism have enough strength and rigidity, light materials are adopted as much as possible, the driving joint, the driven joint, the fixed joint, the driven support, the fixed support, the gear box, the speed reducer connecting piece and the bearing seat are made of high-strength titanium alloy, the cylindrical pin, the fixed shaft 1, the fixed shaft 2, the driving gear, the driven gear, the end cover and the like are subjected to 40Cr thermal refining, and the screw and the split pin are standard parts.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although the terms reversal, sliding, limiting, mechanical self-locking, etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and they are to be interpreted as any additional limitation which is not in accordance with the spirit of the present invention.

Claims

1. The utility model provides an equipment is actuated to axle type which characterized in that: the self-locking mechanism comprises a servo motor, a planetary gear reducer, a gear box and a rotary locking unit, wherein the servo motor drives the planetary gear reducer to drive gears in the gear box to be meshed so as to generate driving torque, and a driving joint, a driven joint, a fixed support, a driven support, a cylindrical pin, a central shaft, a fixed shaft 1, a fixed shaft 2 and an end cover are arranged in the rotary locking unit, so that the driving torque is converted into the rotation erection and the rotation leveling of the driven support, and the self-locking is realized.

2. The shaft-type actuating apparatus of claim 1, wherein: the servo motor and the planetary gear reducer are fixed on the upper right side of the gear box, and the two rotary locking units are respectively fixed on the upper left side and the lower side of the gear box.

3. The shaft-type actuating apparatus of claim 1, wherein: the driving joint is fixed on the central shaft, the driven joint and the fixed joint are sleeved on the central shaft, the three joints are arranged on the central shaft at intervals, the end part of the central shaft is limited by an end cover, the end cover is fixed on the central shaft by a screw to prevent the three joints from being separated, and the cylindrical pin penetrates through chutes of the three joints.

4. The shaft-type actuating apparatus of claim 1, wherein: the fixed joint on the central shaft is connected with the fixed support through the fixed shaft 1, the driven joint is connected with the driven support (10) through the fixed shaft 2, and the cylindrical pin, the fixed shaft 1 and the end part of the fixed shaft 2 are limited through the cotter pin.

5. The shaft-type actuating apparatus of claim 1, wherein: the servo motor is decelerated by the planetary gear reducer and then drives the central shaft to rotate through the gear box, the driving joint rotates along with the central shaft, so that the cylindrical pin is stirred to move, the cylindrical pin drives the driven joint to rotate, and the driven support connected with the driven joint also rotates to a preset angle along with the driven joint and is reliably self-locked.

6. The shaft-type actuating apparatus of claim 1, wherein: the servo motor rotates reversely, so that the driving joint rotates reversely to drive the cylindrical pin to move reversely, and the driven support rotates reversely along with the driven joint and is mechanically self-locked at the initial position. The rotational speed of the rotary locking unit can be adjusted by a servomotor.

7. The shaft-type actuating apparatus of claim 1, wherein: the servo motor is connected with a planetary gear reducer, the planetary gear reducer is connected with a driving gear in a gear box, the gear box is internally provided with the driving gear which is meshed with a driven gear, and two ends of the driven gear are respectively connected with two rotary locking units.