CN210503229U

CN210503229U - Rotating body and rotating assembly

Info

Publication number: CN210503229U
Application number: CN201920791430.8U
Authority: CN
Inventors: 黄立; 陈红胜; 陈小光; 顾兴; 刘华斌; 王效杰
Original assignee: Prodrone Technology Co
Current assignee: Puzhou Technology (Shenzhen) Co.,Ltd.
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2020-05-12
Anticipated expiration: 2029-05-29

Abstract

The utility model relates to a rotator, including the swivel mount, be equipped with arc guide rail, arc spacing track on the swivel mount, can follow the moving part of spacing track activity and be used for driving the track drive unit of spacing track activity on guide rail, guide rail and spacing track all are coaxial with the axis of rotation of swivel mount, and spacing track has at least one spacing portion that is used for interfering moving part annular motion. Still relate to a rotating assembly, including driving body and foretell rotator, be equipped with the barrier piece on the driving body for interfere the rotary motion of moving part and do not interfere the rotary motion of spacing track. Through the cooperation of the limiting track, the moving part, the guide track and the track driving unit arranged on the rotating frame, under the action of the driving body, the large-angle limiting exceeding +/-180 degrees of the rotating motion of the rotating frame can be realized, the requirement of different rotating body angular displacement limiting can be met, and the increasingly wide functional requirements of the rotating body at present can be met.

Description

Rotating body and rotating assembly

Technical Field

The utility model belongs to the field of machinery, concretely relates to rotator reaches rotating assembly including this rotator.

Background

For the rotary drive of a plurality of devices, for example, the rotary drive of each azimuth bracket of the unmanned aerial vehicle holder, the rotation angle is generally limited within the range of-180 degrees to 180 degrees, and the conventional rotation drive is realized through a simple limit stop. This kind of mode is becoming inadequate to adapt to present increasingly extensive functional requirement, for example to the operation demand such as the shooting of unmanned aerial vehicle, and to the rotatory spacing control precision of axle relatively low, the reliability is relatively poor.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a rotary body reaches rotating assembly including this rotary body can solve prior art's part defect at least.

An embodiment of the utility model relates to a rotator, including the swivel mount, be equipped with arc guide rail, activity on the swivel mount set up in arc spacing track on the guide rail, locate on the spacing track and can follow the moving part of spacing track activity and be used for the drive spacing track is in the last track drive unit of activity of guide rail, the guide rail reaches spacing track all with the axis of rotation of swivel mount is coaxial, spacing track has at least one and is used for interfering the spacing portion of moving part annular motion.

As one embodiment, the side wall of the limit track is provided with a toothed section, the track driving unit comprises a driving gear and a track driving motor which are arranged on the rotating frame, and the driving gear is meshed with the toothed section.

As one embodiment, the movable member is a limiting ball, and the limiting ball is arranged on the limiting track in a rolling manner.

As one embodiment, the limiting rail is pressed on the guiding rail and surrounds the guiding rail to form a rail cavity, and the movable member is disposed in the rail cavity.

In one embodiment, the central angle corresponding to the limiting rail is smaller than 360 °, and the limiting portions are disposed at both ends of the limiting rail.

The embodiment of the utility model relates to a rotating assembly, which comprises a driving body and a rotating body as described above, wherein the rotating frame is connected with the driving body and can rotate relative to the driving body; and the driving body is provided with a blocking piece which only can interfere with the rotating motion of the movable piece.

As an embodiment, the free end of the blocking piece is concentric with the limiting track, and the limiting part is provided with a passing channel through which the blocking piece can pass.

The movable piece is provided with an exposed part exposed outside the limiting track, and the free end of the blocking piece is positioned on the annular motion track of the exposed part.

In an embodiment, a damping plate is interposed between the driving body and the rotating frame, the damping plate is fixedly connected to the driving body, and the stopper is connected to the damping plate.

In one embodiment, the driving body is a motor and the output shaft is connected to the rotating frame.

The embodiment of the utility model provides a following beneficial effect has at least:

the utility model discloses in, through spacing track, moving part, guide track and the cooperation of track drive unit that sets up on the swivel mount, under the effect of outside driving body, can realize that the rotatory motion of swivel mount surpasss +/-180 wide-angle spacing, can satisfy the spacing requirement of different rotator angular displacements moreover, satisfy current increasingly extensive functional demand to the rotator, moreover higher, the reliability is better to the rotatory limit control precision of rotator.

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 the drawings without creative efforts.

Fig. 1 is a schematic cross-sectional structural view of a rotating assembly provided in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a rotating body according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a damping plate provided with a blocking member according to an embodiment of the present invention.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example one

As shown in fig. 1 and fig. 2, the embodiment of the present invention provides a rotator 2, including a rotating frame 21, be equipped with arc guide rail 231, activity set up in arc spacing rail 232 on the guide rail 231, locate on the spacing rail 232 and can follow moving part 22 of spacing rail 232 activity and be used for driving spacing rail 232 is in the track drive unit of activity on the guide rail 231, guide rail 231 reaches spacing rail 232 all with the axis of rotation of rotating frame 21 is coaxial, spacing rail 232 has at least one spacing portion that is used for interfering moving part 22 circular motion.

It will be appreciated that the movable member 22 is limited to the position-limiting track 232 to ensure that it only moves along the circumferential direction of the position-limiting track 232 and that it cannot be separated from the position-limiting track 232. The movable member 22 and the limiting rail 232 can adopt a sliding block (such as an arc-shaped sliding block) and sliding rail matching type structure; in this embodiment, as shown in fig. 1 and 2, the movable element 22 is a limit ball 22, the limit rail 232 is correspondingly disposed, and the limit ball 22 is rolling-disposed on the corresponding limit rail 232. The rolling type rotary frame has the advantages that the structure is simple and small by adopting the ball 22 type structure, the resistance of the rolling type structure is small, the phenomena of blocking and the like are avoided, and the rotating stability of the rotary frame 21 is ensured.

Further preferably, as shown in fig. 1 and fig. 2, the limiting rail 232 is pressed on the guiding rail 231 and is enclosed to form a rail cavity, and the movable element 22 is disposed in the rail cavity, in this structure, the limiting rail 232 and the guiding rail 231 can be combined to be regarded as a complete split guide rail 23, the limiting rail 232 and the guiding rail 231 are two parts of the split guide rail 23, the limiting rail 232 is pressed on the guiding rail 231 as a pressing rail and can slide on the guiding rail 231, and this structure can further reduce the volume and weight of the rotating body 2. Of course, the limit rail 232 and the guide rail 231 may be independent rails.

When the rotating body 2 is driven by an external driving body, the rotating frame 21 rotates around a rotating shaft (for example, an output shaft of the driving body), the guide rail 231, the limiting rail 232, the movable piece 22, the rail driving unit and the like form a limiting mechanism which can limit the rotating motion of the rotating frame 21, the stopper 4 arranged on the driving body pushes the movable piece 22 to move on the limiting rail 232 to limit the rotating motion, the central angle corresponding to the limiting rail 232 is α, when the driving body drives in the positive direction (for example, the rotating frame 21 rotates clockwise), the rotating frame 21 drives the movable piece 22 to rotate together, when the stopper 22 is in contact with the stopper 4, the stopper 4 can push the movable piece 22 to move on the limiting rail 232 until the movable piece 22 stops rotating due to interference of the stopper part on the limiting rail 232, the rotating frame 21 can limit the rotating motion, after the driving body rotates in the reverse direction, the movable piece 22 rotates 180 degrees together by being in the positive direction, then contacts with the stopper 4 again, the stopper 4 pushes the movable piece 22 on the limiting rail 232 to move until the movable piece 22 interferes with the limiting rail 232 to stop rotating portion on the normal direction, when the rotating frame 22 rotates in the reverse direction, and the limiting angle is 36180 degrees, and the rotating frame can realize the rotating motion of the rotating frame 21 can be regarded as a reverse rotation angle of + α.

On the other hand, the above-described configuration of the guide rail 231+ the rail driving unit can further increase the limit angle of the rotational movement of the rotating frame 21, specifically:

when the driving body rotates forward, the rotating frame 21 drives the movable element 22 to rotate together, when the movable element 22 contacts with the blocking element 4, the blocking element 4 can push the movable element 22 to move on the limiting rail 232 until the movable element 22 is interfered by the blocking portion on the limiting rail 232 and stops rotating, so that the forward rotation limiting of the rotating frame 21 can be realized, then, the driving body rotates backward, the rotating frame 21 drives the movable element 22 to rotate together 180 degrees and then contacts with the blocking element 4 again, the blocking element 4 pushes the movable element 22 to move on the limiting rail 232 until the movable element 22 is interfered again by the blocking portion on the limiting rail 232 and stops rotating, so that the reverse rotation limiting of the rotating frame 21 can be realized, at this time, the reverse rotation angle of the rotating frame 21 is 180 degrees + α, on the basis, the limiting rail driving unit drives the limiting rail 232 to further rotate in the reverse direction (i.e. the same direction as the reverse rotation direction of the driving body), the reverse rotation angle of the rotating frame 21 can be further increased, obviously, when the limiting rail driving unit drives the limiting rail 232 to rotate in the forward direction, the reverse rotation of the rotating frame 21 can be correspondingly.

Therefore, in this embodiment, the limiting rail 232, the moving member 22, the guiding rail 231 and the rail driving unit arranged on the rotating frame 21 are matched, so that under the action of the external driving body, large-angle limiting exceeding +/-180 degrees of the rotating motion of the rotating frame 21 can be realized, the requirement of angular displacement limiting of different rotating bodies 2 can be met, the current increasingly extensive functional requirements on the rotating bodies 2 are met, and the rotating limiting control precision of the rotating bodies 2 is higher and the reliability is better.

The track driving unit preferably adopts a gear driving structure, specifically, as shown in fig. 2, a side wall of the limiting track 232 has a toothed segment 2321, the track driving unit includes a driving gear 241 arranged on the rotating frame 21, and the driving gear 241 is engaged with the toothed segment 2321; the driving gear 241 may be driven by a track driving motor 242, etc.; of course, a rack and pinion mechanism, a worm and gear mechanism, and the like are applicable to the present embodiment.

It should be understood that the length of the limit rail 232 may be adjusted, that is, the central angle corresponding to the limit rail 232 is adjusted to α, so as to meet the requirement of limiting the angular displacement of the rotating rack 21, in one embodiment, as shown in fig. 2, the central angle corresponding to the limit rail 232 is less than 360 °, preferably, limit portions are respectively disposed at two ends of the limit rail 232, so as to ensure the limit of the forward and reverse rotation of the rotating rack 21, in another embodiment, the central angle corresponding to the limit rail 232 is 360 °, that is, the limit rail 232 is a circular rail, and only one limit portion may be disposed, so as to achieve the large-angle limit of the rotation movement of the rotating rack 21, which exceeds ± 360 °.

The structure of the limiting part may be a baffle plate disposed at the end of the limiting rail 232, and a groove is formed on the baffle plate to form the above-mentioned passing channel for the blocking member 4 to pass through, obviously, the width of the groove formed on the baffle plate is smaller than the diameter of the limiting ball 22.

Example two

As shown in fig. 1, the embodiment of the present invention further provides a rotating assembly, which includes a driving body, and further includes the rotating body 2 provided in the first embodiment, wherein the rotating frame 21 is connected to the driving body and can rotate relative to the driving body; the driving body is provided with a blocking member 4 which can only interfere with the rotational movement of the movable member 22, that is, the blocking member 4 only interferes with the rotational movement of the movable member 22, but does not interfere with the rotational movement of the limit rail 232.

For the interference action between the blocking member 4 and the movable member 22, the following preferred structure can be adopted: (1) the free end of the blocking piece 4 is in a common circle with the limiting track 232, and the limiting part is provided with a passing channel for the blocking piece 4 to pass through; or, (2) the movable element 22 has an exposed portion exposed outside the limit rail 232, and the free end of the blocking element 4 is located on the circular motion track of the exposed portion. For example, the driving body is installed above the rotating body 2, in case (1), the bottom end of the blocking member 4 can be inserted into the limiting rail 232 or located on the arc extension line of the limiting rail 232, and in case (2), the bottom end of the blocking member 4 is located above the top end of the limiting rail 232 and only contacts with the exposed portion of the top of the movable member 22.

The driving body is preferably a motor, and an output shaft thereof is connected to the rotating frame 21; of course, other driving devices are also applicable to the present embodiment, such as a slewing cylinder and the like.

As shown in fig. 1 and 3, a damper plate 3 is preferably interposed between the driver and the rotary frame 21, the damper plate 3 is fixedly connected to the driver, and the stopper 4 is preferably connected to the damper plate 3. The damping plate 3 can reduce the influence of the vibration of the driving body on the stability of the rotating frame 21 on the one hand, and can reduce the influence of the interference collision of the movable piece 22, the limiting part and the blocking piece 4 on the stability of the rotating frame 21 and the driving body on the other hand. Further, elastic buffering portions such as rubber can be arranged on the blocking member 4 to slow down the influence of the collision of the movable member 22, the limiting portion and the blocking member 4 on the overall stability.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotating body, comprising a rotating frame, characterized in that: be equipped with arc direction track, activity set up in arc spacing track on the direction track, locate on the spacing track and can follow the moving part of spacing track activity and be used for the drive the spacing track is in the track drive unit of the last activity of direction track, the direction track reaches spacing track all with the axis of rotation of swivel mount is coaxial, spacing track has at least one and is used for interfering the spacing portion of moving part annular motion.

2. The rotating body according to claim 1, wherein: spacing track lateral wall has the tooth section, track drive unit is including locating drive gear and track driving motor on the swivel mount, drive gear with there is the tooth section meshing.

3. The rotating body according to claim 1, wherein: the moving part is a limiting ball, and the limiting ball is arranged on the limiting track in a rolling mode.

4. A rotary body according to claim 1 or 3, wherein: the limiting rail is pressed on the guide rail and is enclosed to form a rail cavity, and the moving part is arranged in the rail cavity.

5. The rotating body according to claim 1, wherein: the central angle that the spacing track corresponds is less than 360, in spacing track both ends all are equipped with spacing portion.

6. A rotary assembly comprising a drive body, characterized in that: the rotary body according to any one of claims 1 to 5, wherein the rotary frame is connected to the driving body and is rotatable with respect to the driving body; and the driving body is provided with a blocking piece which only can interfere with the rotating motion of the movable piece.

7. The rotating assembly of claim 6, wherein: the free end of the blocking piece is in a common circle with the limiting track, and the limiting part is provided with a passing channel through which the blocking piece can pass.

8. The rotating assembly of claim 6, wherein: the movable piece is provided with an exposed part exposed outside the limiting track, and the free end of the blocking piece is positioned on the annular motion track of the exposed part.

9. The rotating assembly of claim 6, wherein: the driving body with press from both sides between the swivel mount and be equipped with the shock attenuation board, the shock attenuation board with the driving body links firmly, the barrier piece connect in on the shock attenuation board.

10. The rotating assembly of claim 6, wherein: the driving body is a motor and an output shaft of the driving body is connected with the rotating frame.