JP2010223346A - Deceleration structure of space stabilizing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a small brake structure which has a completely mechanical configuration and does not require any electric power even when braking is applied after a gimbal is rotatably driven. <P>SOLUTION: The deceleration structure of a space stabilizing device is configured to brake the rotation of the gimbal (3) and a rotary plate (4) by abutting a rotary side pin (5) of the gimbal (3) on a protuberance (7) of the rotary plate (4) of the gimbal (3) rotatably provided on a stationary side (1) to rotate the rotary plate (4) and bringing a sliding body (20) on the stationary side (1) into slide contact with braking region (10) of the rotary plate (4). <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a speed reduction structure for a space stabilizer, and in particular, when a brake is applied after a gimbal is rotationally driven, it is a novel structure for obtaining a compact brake structure having a pure mechanical configuration and requiring no power. Regarding improvement.

  Conventionally, as this type of space stabilizer used, for example, the configurations disclosed in Patent Documents 1 to 3 described later can be cited. In any configuration, the brake after the gimbal is rotationally driven. As the structure, a configuration using an electromagnetic brake or a spring has been adopted.

JP 2000-202153 A JP 2002-22462 A JP 2002-78311 A

Since the conventional speed reduction structure of the space stabilizer is configured as described above, the following problems exist.
In other words, when the gimbal is driven to rotate rapidly, or when the gimbal is driven to rotate rapidly due to a runaway control system, the gimbal stopper projection violently collides with the fixed pin, and the structure around the gimbal is It was sometimes damaged.
In the case of the spring type, when the deceleration G is reduced to protect the internal device of the space stabilizer, it is necessary to weaken the spring force, and when the spring force is weakened, it is necessary to lengthen the stroke. Was supposed to require a lot of space.

  The space stabilizer deceleration structure according to the present invention is a space stabilizer deceleration structure having a gimbal that is rotatable on a fixed side and having a brake structure for decelerating the rotation of the gimbal, and is provided at least at the base of the gimbal. One rotation side pin, a rotation plate rotatably provided on the fixed side, a protrusion provided on the first surface of the rotation plate and engageable with the rotation side pin, and a second surface of the rotation plate A brake region that is formed by a step that protrudes in the thickness direction of the rotating plate, and a sliding body that is provided on the fixed side and is positioned between the rotating plate and the fixed side. The sliding part is always urged toward the rotating plate by a spring, and when the gimbal rotates and the rotating side pin engages with the protrusion, The gimbal rotates together with the gimbal, the brake region is in sliding contact with the sliding component, and the rotation of the gimbal is decelerated, and the step and the sliding component are configured to have a tapered portion, Further, the brake region is configured to be provided in a pair symmetrically with respect to a diameter line connecting 0 ° and 180 ° of the rotating plate, and a stopper protrusion provided on the second surface of the rotating plate. And a pair of fixed-side pins provided on the fixed side, the rotating-side pins consist of a pair, and the rotation of the rotating plate is caused by the stopper projections coming into contact with the pair of fixed-side pins. It is the structure which stops.

Since the deceleration structure of the space stabilizer according to the present invention is configured as described above, the following effects can be obtained.
That is, in the space stabilizer decelerating structure having a rotatable gimbal on the fixed side and having a brake structure for decelerating the rotation of the gimbal, at least one rotating side pin provided at the base of the gimbal and the fixed A rotating plate provided on the first surface of the rotating plate, a protrusion provided on the first surface of the rotating plate and engageable with the rotating side pin, and a thickness of the rotating plate provided on the second surface of the rotating plate. A brake region formed by a step projecting in a direction, and a sliding body provided on the fixed side and positioned between the rotating plate and the fixed side, and a sliding component of the sliding body is always provided by a spring. When the gimbal rotates and the rotation side pin is engaged with the protrusion, the rotation plate rotates together with the gimbal. By the brake region is the rotation of the gimbal contact the sliding element and the sliding is decelerated, it is possible to gimbal the stopper projection is gently collide with fixed pin, to prevent damage to the gimbal system and the like. In addition, since the step and the sliding component have a tapered portion, sliding between the sliding component and the step can be performed extremely smoothly. In addition, a pair of the brake regions are provided symmetrically with respect to a diameter line connecting 0 ° and 180 ° of the rotating plate, so that a braking operation during left-right rotation can be obtained. In addition, a stopper projection provided on the second surface of the rotating plate and a pair of fixed side pins provided on the fixed side, the rotating side pin is a pair, the left and right rotation of the rotating plate, By stopping the stopper projection by contacting the pair of fixed pins, the stopper projection gently contacts the fixed pin without damage to the gimbal and the like, and the rotation of the gimbal can be stopped.

It is a plane block diagram of the principal part which shows the deceleration structure of the space stabilizer by this invention. It is an expanded sectional view which shows the principal part of FIG.

  It is an object of the present invention to provide a compact brake structure that has a pure mechanical configuration and does not require any electric power when a brake is applied after the gimbal is rotationally driven.

Hereinafter, preferred embodiments of a speed reducing structure for a space stabilizer according to the present invention will be described with reference to the drawings.
In FIG. 1, what is indicated by reference numeral 1 is a fixed side configured in a fixed state of a main body, a housing and the like, and this fixed side 1 has a U shape whose overall shape is known via a shaft 2. The formed gimbal 3 is provided so as to be forward / reverse, that is, to be rotatable left and right along the arrows A and B.

  On the inner surface side of the gimbal 3, a rotating plate 4 having a ring shape as a whole is rotatably disposed on the fixed side 1, and one or a pair of rotating side pins is disposed on the inner surface of the gimbal 3. 5 or 5, 5a is provided.

  At the 180 ° position of the diameter line 6 connecting 0 ° and 180 ° of the rotating plate 4, a protrusion 7 is provided on the first surface 4 a in a state that coincides with the radial width of the rotating plate 4. The rotation side pin 5 is configured to come into contact with one side 7a of the projection 7 and in the case of a pair of rotation pins 5 and 5a, the projection 7 has one side 7a and the other side 7b. It is the structure which contacts.

  A stopper protrusion 8 is formed at a position corresponding to the protrusion 7 on the second surface 4b of the rotating plate 4 so as to protrude vertically or downward with respect to the paper surface of FIG. 1, and this second surface 4b. As shown in FIG. 2, a brake region 10 having a step 9 formed so as to protrude along the thickness direction C of the rotating plate 4 is formed, and the step 9 has a first taper portion. 9a.

A pair of the brake regions 10 and 10 a are formed symmetrically with respect to the diameter line 6 connecting 0 ° and 180 ° of the rotating plate 4.
A sliding body 20 shown in FIG. 2 is provided on the second surface 4 b side, which is the back of the rotating plate 4, and on the fixed side 1, and this sliding body 20 is arranged at the 0 ° position of the diameter line 6. It is installed.

  The sliding body 20 includes a base portion 21 provided on the fixed side 1 and having a substantially convex cross section, a concave portion 22 formed at the axial center of the base portion 21, and a spring in the concave portion 22. And a sliding component 24 provided so as to reciprocate along the arrow D along the thickness direction of the base portion 21 through a base 23, and a second sliding component formed on the sliding component 24. And a taper portion 25.

On the fixed side 1, a pair of first and second fixed side pins 30, 31 are provided at symmetrical positions with respect to the diameter line 6, and the stopper protrusion 8 is arranged in the first direction when the rotating plate 4 rotates left and right. The gimbal 3 can be prevented from rotating in the left-right direction by coming into contact with any one of the second fixed pins 30 and 31.
Accordingly, the stop angle position when the gimbal 3 is rotated left and right can be freely set according to the installation angle positions of the fixed pins 30 and 31. The brake structure 40 is constituted by the brake region 10 and the sliding body 20 described above.

  In the above-described configuration, when the gimbal 3 is rotated in the left or right direction by a motor (not shown), a finite angle motor, an actuator, or the like, the rotation-side pin 5 of the gimbal 3 abuts on the protrusion 7 and the rotation plate 4 is moved to the arrow. While rotating in the direction A, before the stopper protrusion 8 on the back surface of the protrusion 7 abuts on the first fixed pin 30, the inner surface of the rotating plate 4, that is, the first taper portion 9a on the back surface is a sliding component. 24 is in sliding contact with the second taper portion 25 and in sliding contact with the sliding region 24 and the brake region 10 of the rotating plate 4. Therefore, the rotation of the rotating plate 4, that is, the rotation of the gimbal 3 is suddenly braked. The contact between the stopper protrusion 8 and the first fixed side pin 30 is performed very gently, and damage to the gimbal or the like can be prevented in advance.

  In the above-described operation, the case where the gimbal 3 and the rotating plate 4 are rotated in the arrow A, that is, the left rotation (CCW direction) in the state of FIG. 1 is described. B, that is, when rotating clockwise (in the CW direction), the rotation-side pin 5a abuts on the protrusion 7, and the stopper protrusion 8 is smoothly applied to the second fixed-side pin 31 by the same action as described above. Can make contact. Note that the frictional force of the sliding component 24 against the brake region 10 of the brake structure 40 described above is linked to the adjustment of the spring force of the spring 23.

  The deceleration structure of the night space stabilizer in the present invention is not limited to the application to the gimbal of the space stabilizer, and can be applied to, for example, a brake structure such as a motor.

DESCRIPTION OF SYMBOLS 1 Fixed side 2 axis | shaft 3 Gimbal 4 Rotating plate 5, 5a Rotating side pin 6 Diameter line 7 Protrusion part 8 Stopper protrusion 9 Step 9a 1st taper part 10 and 10a Brake area 20 Sliding body 21 Base part 22 Recessed part 23 Spring 24 Sliding Moving parts 25 2nd taper part 30 1st fixed side pin 31 2nd fixed side pin

Claims (4)

In the speed reducing structure of the space stabilizer having a rotatable gimbal (3) on the fixed side (1) and having a brake structure (40) for decelerating the rotation of the gimbal (3),
At least one rotation side pin (5) provided on the base (3a) of the gimbal (3), a rotation plate (4) rotatably provided on the fixed side (1), and the rotation plate (4 ) Provided on the first surface (4a) of the rotation side pin (5) and engageable with the rotation side pin (5), and the rotation plate (4) provided on the second surface (4b) of the rotation plate (4). 4) a brake region (10) formed by a step (9) protruding in the thickness direction (C), and provided on the fixed side (1) of the rotating plate (4) and the fixed side (1). A sliding body (20) located between,
The sliding component (24) of the sliding body (20) is constantly urged toward the rotating plate (4) by a spring (23), and the gimbal (3) rotates to rotate the rotating side pin (5). When engaged with the protrusion (7), the rotating plate (4) rotates together with the gimbal (3), and the brake region (10) comes into sliding contact with the sliding component (24) so that the gimbal (3) A reduction structure for a space stabilizer, characterized in that rotation is reduced.   2. The space stabilizer deceleration structure according to claim 1, wherein the step (9) and the sliding part (24) have first and second tapered portions (9a, 25).   The brake region (10, 10a) is provided in a pair symmetrically with respect to a diameter line (6) connecting 0 ° and 180 ° of the rotating plate (4). A reduction structure of the described space stabilizer.   A stopper projection (8) provided on the second surface (4b) of the rotating plate (4), and a pair of fixed side pins (30, 31) provided on the fixed side (1), The rotation side pins (5, 5a) consist of a pair, and the left and right rotation of the rotation plate (4) stops when the stopper projection (8) abuts the pair of fixed side pins (30, 31). The speed-reduction structure of the space stabilizer according to any one of claims 1 to 3.

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