Translation axis assembly and gimbal platform using same

Patent metadata

Field	Value
Publication number	US-10830388-B2
Application number	US-202016878108-A
Country	US
Kind code	B2
Filing date	May 19, 2020
Priority date	Nov 28, 2014
Publication date	Nov 10, 2020
Grant date	Nov 10, 2020

Abstract

A gimbal platform includes a roll axis and a translation axis assembly in pivot connection with the roll axis assembly and configured to drive the roll axis assembly to rotate. The translation axis assembly includes a supporting arm including a penetration hole, a connecting plate at least partially accommodated in the penetration hole, and a center-of-gravity adjusting device connected between the supporting arm and the connecting plate and configured to adjust a center of gravity of the translation axis assembly by adjusting a position of the supporting arm on the connecting plate. The center-of-gravity adjusting device includes a lead screw and a moving member rotatably and movably arranged on the lead screw. The moving member is received in the penetration hole and fixedly connected to the supporting arm, includes a threaded hole in a threaded connection with the lead screw, and accommodates a portion of the connecting plate.

First claim

What is claimed is:

1. A gimbal platform comprising:
a roll axis assembly; and
a translation axis assembly in pivot connection with the roll axis assembly and configured to drive the roll axis assembly to rotate, the translation axis assembly including:
a supporting arm including a penetration hole;
a connecting plate at least partially accommodated in the penetration hole; and
a center-of-gravity adjusting device connected between the supporting arm and the connecting plate and configured to adjust a center of gravity of the translation axis assembly by adjusting a position of the supporting arm on the connecting plate, the center-of-gravity adjusting device including:
a lead screw; and
a moving member rotatably and movably arranged on the lead screw, the moving member being received in the penetration hole and fixedly connected to the supporting arm, the moving member including a threaded hole in a threaded connection with the lead screw, and a portion of the connecting plate being arranged in the moving member.

2. The gimbal platform of claim 1 , wherein:
the supporting arm further includes a locking hole in communication with the penetration hole, and
the center-of-gravity adjusting device further includes a locking assembly configured to:
allow the supporting arm and the connecting plate to be in a loose fit or to hold tightly to each other; and
reduce a size of the locking hole to hold the supporting arm tightly in the penetration hole.

3. The gimbal platform of claim 1 , further comprising:
a pitch axis assembly in pivot connection with the roll axis assembly;
wherein the roll axis assembly is configured to drive the pitch axis assembly to rotate.

4. The gimbal platform of claim 3 , further comprising:
a support assembly movably arranged at the pitch axis assembly.

5. The gimbal platform of claim 4 , wherein the pitch axis assembly includes:
a pillar;
a guide post perpendicular to the pillar; and
a position-locking device arranged at an end of the guide post and coupling the guide post to the pillar, the position-locking device being configured to move along a lengthwise direction of the pillar to cause the guide post to move along the lengthwise direction of the pillar.

6. The gimbal platform of claim 5 , wherein:
the position-locking device includes a collar including a snapping hole and a receiving hole, an axial direction of the snapping hole being approximately perpendicular to an axial direction of the receiving hole;
a shape and a size of the snapping hole correspond to a shape and a size of the pillar, respectively;
the pillar is sheathed in the snapping hole; and
the receiving hole receives the end of the guide post.

7. The gimbal platform of claim 5 , wherein the support assembly includes:
an adapter slidably arranged on the guide post;
a mounting plate fixed to the adapter and configured to be slidably connected to a payload carried by the gimbal platform; and
a fastening device arranged at one side of the mounting plate and configured to lock the payload to the mounting plate.

8. The gimbal platform of claim 7 , wherein:
the adapter includes a first pressing block and a second pressing block arranged oppositely; and
the guide post is configured to insert into two circular slots that are formed between the first pressing block and the second pressing block.

9. The gimbal platform of claim 8 , wherein:
the adapter further includes a screw configured to lock the first pressing block and the second pressing block together;
when the screw is tightly locked, the adapter is fixed to the guide post; and
when the screw is released, the adapter is slidable on the guide post in a lengthwise direction of the guide post.

10. The gimbal platform of claim 9 , wherein the screw includes a wrench arranged on a nut of the screw.

11. The gimbal platform of claim 9 , wherein the roll axis assembly includes:
a first arm;
a second arm arranged symmetrically to the first arm;
a connecting arm connecting the first arm and the second arm; and
a driving device configured to drive the pillar to rotate, so as to drive the pitch axis assembly to rotate.

12. The gimbal platform of claim 11 , wherein:
the pillar includes a through hole at one end of the pillar; and
the driving device includes a rotary shaft arranged in a through hole and fixedly connected to the through hole.

13. The gimbal platform of claim 12 , wherein an axial direction of the rotary shaft is perpendicular to a lengthwise direction of the pillar.

14. The gimbal platform of claim 11 , wherein the first arm, the second arm, and the connecting arm are integrally formed.

15. The gimbal platform of claim 11 , wherein:
the driving device is a first driving device;
the penetration hole is arranged at a first end of the supporting arm;
the translation axis assembly includes a second driving device arranged at a second end of the supporting arm that is opposite to the first end, the second driving device being configured to drive the roll axis assembly to rotate; and
the second driving device includes a rotary shaft fixed in a center portion of the connecting arm.

16. The gimbal platform of claim 1 , further comprising:
a holding part; and
a driving part arranged between the holding part and the connecting plate, the driving part being configured to drive the translation axis assembly to rotate.

17. The gimbal platform of claim 16 , wherein the holding part is in a shape of a bent rod.

18. The gimbal platform of claim 16 , wherein the holding part includes:
a supporting part including a rod member;
a connecting part arranged at a geometrical center of the supporting part and connected to the driving part; and
a hand-held part.

19. The gimbal platform of claim 18 , wherein the hand-held part includes two cylindrical handgrips fixed to two ends of the supporting part, respectively.

20. The gimbal platform of claim 18 , wherein the holding part further includes a handle fixed to one side of the supporting part opposite to the connecting part.

Assignees

• Sz Dji Technology Co Ltd

Inventors

• Guo Shanguang
• Zhao Yanchong

Classifications

• F16M13/04

  for supporting on, or holding steady relative to, a person, e.g. by chains {, e.g. rifle butt or pistol grip supports, supports attached to the chest or head (apparatus or arrangements for taking photographs or for projecting or viewing them G03B)} · CPC title

• G03B17/561

  Support related camera accessories · CPC title

• F16M11/18 Primary

  with mechanism for moving the apparatus relatively to the stand · CPC title

• F16M11/048

  adapted to forward-backward translation movement · CPC title

• F16M2200/027

  by friction · CPC title