Planetary reducer for manipulator

Abstract

The planetary reducer for the mechanical arm relates to the field of planetary reducers and comprises a planetary reducer body, a flange plate is arranged on the outer side of the planetary reducer body, a plurality of mounting holes are formed in the surface of the flange plate, an annular frame is arranged on the outer side of the flange plate, and mounting openings are formed in the periphery of the annular frame. A fixing box is connected into the mounting opening, and a first spring is connected into the fixing box. By rotating the fixing box, the fixing box drives the annular frame to rotate, when the inserting rods on the fixing box correspond to the inserting holes in the flange plate, the first spring pushes the pushing plate, the pushing plate pulls the inserting rods, the inserting rods are inserted into the inserting holes in the flange plate, and at the moment, the annular frame drives the sealing plate to rotate; the sealing plate is rotated to the position of the bolt used for locking the planetary reducer body and the motor, the bolt is sealed, the problem that the bolt falls off due to vibration generated by the motor can be effectively solved, and therefore the stability between the planetary reducer body and the motor is improved.

Description

Technical Field

[0001] The utility model relates to the field of planetary reducers, in particular to a planetary reducer for a manipulator. Background Art

[0002] A planetary reducer is a power transmission mechanism that uses a gear speed converter to reduce the motor's rotation speed to the desired number of rotations and obtain a larger torque. The gear with fewer teeth on the planetary reducer's transmission shaft meshes with the larger gear on the output shaft to achieve the purpose of deceleration. Ordinary reducers also have several pairs of gears with the same principle meshing to achieve the ideal deceleration effect. The ratio of the number of teeth of the large and small gears is the transmission ratio.

[0003] At present, when connecting a planetary reducer to a motor on a robot, it is mostly connected through a flange, and the flange connection is mostly fastened by bolts. The motor will vibrate when working, which can easily cause the bolts on the flange to fall off, affecting the stability of the connection between the motor and the planetary reducer.

[0004] Therefore, it is necessary to invent a planetary reducer for a robot to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a planetary reducer for a manipulator to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a planetary reducer for a manipulator, comprising a planetary reducer body, a flange is arranged on the outside of the planetary reducer body, a plurality of mounting holes are opened on the surface of the flange, an annular frame is arranged on the outside of the flange, mounting openings are opened on all four sides of the annular frame, and a fixing box is connected in the mounting opening, a first spring is connected in the fixing box, a push plate is connected to one end of the first spring, an insertion rod is connected in the push plate, insertion holes corresponding to the insertion rod are opened on all four sides of the flange, and a plurality of sealing plates corresponding to the mounting holes are connected to the front side of the annular frame.

[0007] Preferably, the flange is connected with fixing plates on all four sides, the surface of the annular frame is provided with a strip opening corresponding to the fixing plate, the other side of the fixing plate is connected with an arc-shaped limiting cylinder, the inside of the arc-shaped limiting cylinder is connected with an arc-shaped limiting rod, and the other end of the arc-shaped limiting rod is connected to the side wall of the fixing box.

[0008] Preferably, one end of the arc-shaped limiting rod away from the fixing box is connected to a second spring, and the other end of the second spring is connected to the inner wall of the arc-shaped limiting cylinder.

[0009] Preferably, the other end of the insertion rod passes through the fixing box and is connected to a rotating rod through a bearing, the other end of the rotating rod is connected to a clamping plate, and the side wall of the fixing box is connected to a clamping block corresponding to the clamping plate.

[0010] Preferably, a pull ring is connected to a side of the clamping plate away from the rotating rod.

[0011] Technical effects and advantages of the utility model:

[0012] By rotating the fixing box, the fixing box drives the annular frame to rotate. When the plug rod on the fixing box corresponds to the plug hole on the flange, the first spring pushes the pushing plate, and the pushing plate pulls the plug rod so that the plug rod is inserted into the plug hole on the flange. At this time, the annular frame drives the sealing plate to rotate, and the sealing plate is rotated to the bolt used to lock the planetary reducer body and the motor to seal the bolt, which can effectively prevent the problem of the bolt falling off caused by the vibration generated by the motor, thereby improving the stability between the planetary reducer body and the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 For this utility model Figure 1 A schematic cross-sectional structure diagram of ;

[0015] Figure 3 For this utility model Figure 2 Schematic diagram of the enlarged structure of part A.

[0016] In the figure: 1. planetary reducer body; 2. flange; 3. mounting hole; 4. annular frame; 5. fixing box; 6. first spring; 7. push plate; 8. plug rod; 9. plug hole; 10. sealing plate; 11. fixing plate; 12. arc-shaped limit cylinder; 13. arc-shaped limit rod; 14. second spring; 15. rotating rod; 16. clamping plate; 17. clamping block; 18. pull ring. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] The utility model provides Figure 1-3A planetary reducer for a manipulator shown in the figure comprises a planetary reducer body 1, a flange 2 is arranged on the outer side of the planetary reducer body 1, a plurality of mounting holes 3 are opened on the surface of the flange 2, an annular frame 4 is arranged on the outer side of the flange 2, mounting openings are opened on all sides of the annular frame 4, and a fixing box 5 is connected in the mounting opening, a first spring 6 is connected in the fixing box 5, a push plate 7 is connected at one end of the first spring 6, an insertion rod 8 is connected in the pushing plate 7, insertion holes 9 corresponding to the insertion rod 8 are opened on all sides of the flange 2, a plurality of sealing plates 10 corresponding to the mounting holes 3 are connected to the front side of the annular frame 4, and when the planetary reducer is assembled, the planetary reducer body 1 is provided with a plurality of sealing plates 10 corresponding to the mounting holes 3. When the main body 1 is connected to the motor through the flange 2, the fixing box 5 is rotated, and the fixing box 5 drives the annular frame 4 to rotate. When the plug rod 8 on the fixing box 5 corresponds to the socket 9 on the flange 2, the first spring 6 pushes the push plate 7, and the push plate 7 pulls the plug rod 8, so that the plug rod 8 is inserted into the socket 9 on the flange 2. At this time, the annular frame 4 drives the sealing plate 10 to rotate, and the sealing plate 10 is rotated to the bolt used to lock the planetary reducer body 1 and the motor, and the bolts are blocked, which can effectively prevent the problem of the bolts falling off caused by the vibration generated by the motor, thereby improving the stability between the planetary reducer body 1 and the motor.

[0019] The flange 2 is connected with a fixing plate 11 on all sides, and a strip opening corresponding to the fixing plate 11 is opened on the surface of the annular frame 4. An arc-shaped limiting cylinder 12 is connected to the other side of the fixing plate 11, and an arc-shaped limiting rod 13 is connected to the arc-shaped limiting cylinder 12. The other end of the arc-shaped limiting rod 13 is connected to the side wall of the fixing box 5. When the fixing box 5 rotates, it pushes the arc-shaped limiting rod 13 so that the arc-shaped limiting rod 13 extends into the arc-shaped limiting cylinder 12 to limit the fixing box 5.

[0020] One end of the arc-shaped limiting rod 13 away from the fixing box 5 is connected to the second spring 14 , and the other end of the second spring 14 is connected to the inner wall of the arc-shaped limiting cylinder 12 . The reset property of the second spring 14 can reset the multiple fixing boxes 5 .

[0021] The other end of the insertion rod 8 passes through the fixed box 5 and is connected to the rotating rod 15 through a bearing. The other end of the rotating rod 15 is connected to a clamping plate 16. The side wall of the fixed box 5 is connected to a clamping block 17 corresponding to the clamping plate 16. By pulling the clamping plate 16, the clamping plate 16 pulls the rotating rod 15, and the rotating rod 15 pulls the insertion rod 8, the insertion rod 8 can be moved out of the socket 9 on the flange 2, and when the clamping plate 16 exceeds the clamping block 17, the clamping plate 16 is rotated to clamp the clamping plate 16 on the clamping block 17, thereby limiting the insertion rod 8.

[0022] A pull ring 18 is connected to a side of the clamping plate 16 away from the rotating rod 15 , and the clamping plate 16 can be easily pulled by pulling the pull ring 18 .

[0023] Working principle of this utility model:

[0024] By rotating the fixing box 5, the fixing box 5 drives the annular frame 4 to rotate. When the plug rod 8 on the fixing box 5 corresponds to the plug hole 9 on the flange 2, the first spring 6 pushes the pushing plate 7, and the pushing plate 7 pulls the plug rod 8 so that the plug rod 8 is inserted into the plug hole 9 on the flange 2. At this time, the annular frame 4 drives the sealing plate 10 to rotate, and the sealing plate 10 is rotated to the bolt used to lock the planetary reducer body 1 and the motor to seal the bolt. If the motor and the planetary reducer body 1 need to be disassembled, by pulling the card plate 16, the card plate 16 pulls the rotating rod 15, and the rotating rod 15 pulls the plug rod 8, the plug rod 8 can be moved out of the plug hole 9 on the flange 2, and when the card plate 16 exceeds the block 17, the card plate 16 is rotated to clamp the card plate 16 on the block 17, thereby limiting the plug rod 8, and the reset property of the second spring 14 can make multiple fixing boxes 5 reset, and the planetary reducer body 1 can be disassembled at this time.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A planetary reducer for a manipulator, comprising a planetary reducer body, a flange is arranged on the outer side of the planetary reducer body, and a plurality of mounting holes are opened on the surface of the flange, characterized in that: An annular frame is provided on the outer side of the flange, mounting openings are provided on all four sides of the annular frame, and a fixing box is connected to the mounting opening, a first spring is connected to the fixing box, one end of the first spring is connected to a push plate, an insertion rod is connected to the push plate, insertion holes corresponding to the insertion rod are provided on all four sides of the flange, and a plurality of sealing plates corresponding to the mounting holes are connected to the front side of the annular frame.

2. A planetary reducer for a manipulator according to claim 1, characterized in that: The flange is connected with fixing plates all around, the surface of the annular frame is provided with a strip opening corresponding to the fixing plate, the other side of the fixing plate is connected with an arc-shaped limiting cylinder, the arc-shaped limiting cylinder is connected with an arc-shaped limiting rod, and the other end of the arc-shaped limiting rod is connected to the side wall of the fixing box.

3. A planetary reducer for a manipulator according to claim 2, characterized in that: One end of the arc-shaped limiting rod away from the fixing box is connected to a second spring, and the other end of the second spring is connected to the inner wall of the arc-shaped limiting cylinder.

4. The planetary reducer for a manipulator according to claim 1, characterized in that: The other end of the insertion rod passes through the fixing box and is connected to a rotating rod through a bearing. The other end of the rotating rod is connected to a clamping plate. The side wall of the fixing box is connected to a clamping block corresponding to the clamping plate.

5. A planetary reducer for a manipulator according to claim 4, characterized in that: A pull ring is connected to one side of the clamping plate away from the rotating rod.

Images