CN215370801U - Drive assembly for intermittent motion mechanism - Google Patents
Drive assembly for intermittent motion mechanism Download PDFInfo
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- CN215370801U CN215370801U CN202120742704.1U CN202120742704U CN215370801U CN 215370801 U CN215370801 U CN 215370801U CN 202120742704 U CN202120742704 U CN 202120742704U CN 215370801 U CN215370801 U CN 215370801U
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- displacement sensor
- bearing
- angular displacement
- speed reducer
- clutch
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Abstract
The patent discloses a drive assembly for intermittent motion mechanism, including driving motor, shaft coupling, reduction gear, motor cabinet, support, bearing assembly, rotation axis, electromagnetic clutch, deep groove ball bearing B, bearing lock nut, drive element, angle displacement sensor switching piece, angle displacement sensor and angle displacement sensor mount pad. The driving motor is a stepping motor or a direct current brushless torque motor; the speed reducer is a harmonic speed reducer or a planetary gear speed reducer; the transmission element is a gear, a worm wheel or a transmission shaft; the angular displacement sensor is a Hall angular displacement sensor, a rotary transformer, a photoelectric coded disc or a circular induction synchronizer. The advantage of this patent lies in: the on-off of the electromagnetic clutch can control the rotation and stop of the transmission element, and the response speed is high; the reliability of the movement mechanism can be greatly improved by mutually backing up the two sets of driving components in the patent; the angular displacement sensor provides a corner feedback signal to realize closed-loop control.
Description
Technical Field
The patent relates to the technical field of motion mechanisms, in particular to a driving assembly for an intermittent motion mechanism.
Background
The requirement of a certain motion mechanism for spaceflight is intermittent motion, the conventional driving mode is to control the motion and stop through a relay, the motion rule has to have an acceleration and deceleration process, and the response is not timely. In addition, the aerospace motion mechanism has very high requirement on the reliability of the driving assembly, and is difficult to maintain when in orbit. Conventional drive assemblies cannot solve the problem by mutual backup of two sets of drive assemblies when jamming failure occurs, because once one set of drive assembly is jammed, the other set of drive assembly is not enough to drive the mechanism. The drive assembly for the intermittent motion mechanism provided by the patent properly solves the problems, firstly, the rotation and the stop of a transmission element can be controlled through the on-off of an electromagnetic clutch, and the response speed is high. Secondly, two sets of driving assemblies disclosed in the patent are mutually backed up, and when one set of driving assemblies is stuck and fails, the electromagnetic clutch of the failed set of driving assemblies is disconnected, and the backed-up driving assemblies are started.
Disclosure of Invention
To overcome the deficiencies of the prior art described above, this patent provides a drive assembly for an intermittent motion mechanism.
The technical scheme adopted by the patent is as follows: the driving assembly comprises a driving motor 1, a coupling 2, a speed reducer 3, a motor base 4, a support 5, a bearing assembly 6, a rotating shaft 7, an electromagnetic clutch 8, a deep groove ball bearing B9, a bearing locking nut 10, a transmission element 11, an angular displacement sensor adapter block 12, an angular displacement sensor 13 and an angular displacement sensor mounting base 14.
The stator of the driving motor 1 is arranged on the support 5 through the motor base 4, and the rotor of the driving motor 1 is connected with the speed reducer 3 through the coupler 2.
The rotating shaft 7 is connected with the output end of the speed reducer 3 through a screw, and the rotating shaft 7 is installed with the support 5 through a bearing assembly 6; the bearing assembly 6 comprises a bearing seat 601, a pair of angular contact ball bearings 602, a bearing inner ring lock nut 603 and a bearing outer ring lock nut 604.
The electromagnetic clutch 8 is arranged on the rotating shaft 7 through a deep groove ball bearing B9 and 2 bearing locking nuts 10; the electromagnetic clutch 8 comprises a clutch stator 801, a pair of deep groove ball bearings A802, a clutch rotor 803 and a clutch output end 804; the clutch stator 801 is mounted on the support 5 through screws; the clutch rotor 803 is connected with the rotating shaft 7 through a standard flat key to perform torque transmission; the transmission element 11 is connected with the clutch output end 804 through a screw; the rotor of the angular displacement sensor 13 is connected with the transmission element 11 through an angular displacement sensor transfer block 12, and the stator of the angular displacement sensor 13 is connected with the support 5 through an angular displacement sensor mounting seat 14.
The driving motor 1 is a stepping motor or a direct current brushless torque motor; the speed reducer 3 is a harmonic speed reducer or a planetary gear speed reducer; the transmission element 11 is a gear, a worm wheel or a transmission shaft; the angular displacement sensor 13 is a Hall angular displacement sensor, a rotary transformer, a photoelectric coded disc or a circular induction synchronizer.
Compared with the prior art, the beneficial effect of this patent is:
1. the on-off of the electromagnetic clutch can control the rotation and the stop of the transmission element, the response speed is high, and the electromagnetic clutch is suitable for an intermittent motion mechanism;
2. the reliability of the movement mechanism can be greatly improved by mutually backing up the two sets of driving components of the patent, and the device is particularly suitable for the movement mechanism with high reliability requirement;
3. the angular displacement sensor provides a corner feedback signal, and closed-loop control can be realized.
Drawings
FIG. 1 is a schematic view of a drive assembly according to the present patent;
FIG. 2 is a schematic structural outline of a drive assembly of the present patent;
in the figure, 1 is a driving motor; 2 is a coupling; 3 is a speed reducer; 4 is a motor base; 5 is a support; 6 is a bearing assembly; 601 is a bearing seat; 602 are paired angular contact ball bearings; 603 is a bearing inner ring lock nut; 604 is a bearing outer race lock nut; 7 is a rotation axis; 8 is an electromagnetic clutch; 801 is a clutch stator; 802 is a deep groove ball bearing a; 803 is the clutch rotor; 804 is the clutch output; 9 is a deep groove ball bearing B; 10 is a bearing lock nut; 11 is a transmission element; 12 is an angular displacement sensor transfer block; 13 is an angular displacement sensor; and 14 is an angular displacement sensor mount.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are implemented on the premise of the technical solution of the present invention, and give detailed implementation and specific operation procedures, but the scope of protection of the present invention is not limited to the following embodiments.
As shown in fig. 1 and 2, the drive assembly of the present embodiment includes a drive motor 1, a coupling 2, a speed reducer 3, a motor base 4, a support 5, a bearing assembly 6, a rotary shaft 7, an electromagnetic clutch 8, a deep groove ball bearing B9, a bearing lock nut 10, a transmission element 11, an angular displacement sensor transfer block 12, an angular displacement sensor 13, and an angular displacement sensor mount 14.
The stator of the driving motor 1 is arranged on the support 5 through the motor base 4, and the rotor of the driving motor 1 is connected with the speed reducer 3 through the coupler 2.
The rotating shaft 7 is connected with the output end of the speed reducer 3 through a screw, and the rotating shaft 7 is installed with the support 5 through a bearing assembly 6; the bearing assembly 6 comprises a bearing seat 601, a pair of angular contact ball bearings 602, a bearing inner ring lock nut 603 and a bearing outer ring lock nut 604.
The electromagnetic clutch 8 is arranged on the rotating shaft 7 through a deep groove ball bearing B9 and 2 bearing locking nuts 10; the electromagnetic clutch 8 comprises a clutch stator 801, a pair of deep groove ball bearings A802, a clutch rotor 803 and a clutch output end 804; the clutch stator 801 is mounted on the support 5 through screws; the clutch rotor 803 is connected with the rotating shaft 7 through a standard flat key to perform torque transmission; the transmission element 11 is connected with the clutch output end 804 through a screw; the rotor of the angular displacement sensor 13 is connected with the transmission element 11 through an angular displacement sensor transfer block 12, and the stator of the angular displacement sensor 13 is connected with the support 5 through an angular displacement sensor mounting seat 14.
The driving motor 1 is a stepping motor; the speed reducer 3 is a harmonic speed reducer; the transmission element 11 is a gear; the angular displacement sensor 13 is a hall angular displacement sensor.
The driving assembly manufactured according to the patent is successfully applied to a certain star movement mechanism, passes the evaluation of environmental tests such as mechanical tests, thermal vacuum tests and the like, and meets the performance requirements.
Claims (5)
1. The utility model provides a drive assembly for intermittent motion mechanism, includes driving motor (1), shaft coupling (2), reduction gear (3), motor cabinet (4), support (5), bearing assembly (6), rotation axis (7), electromagnetic clutch (8), deep groove ball bearing B (9), bearing lock nut (10), drive element (11), angle displacement sensor switching piece (12), angle displacement sensor (13) and angle displacement sensor mount pad (14), its characterized in that:
the stator of the driving motor (1) is arranged on the support (5) through a motor base (4), and the rotor of the driving motor (1) is connected with the speed reducer (3) through a coupling (2);
the rotating shaft (7) is connected with the output end of the speed reducer (3) through a screw, and the rotating shaft (7) is installed with the support (5) through a bearing assembly (6); the bearing assembly (6) comprises a bearing seat (601), a pair of angular contact ball bearings (602), a bearing inner ring locking nut (603) and a bearing outer ring locking nut (604);
the electromagnetic clutch (8) is arranged on the rotating shaft (7) through a deep groove ball bearing B (9) and 2 bearing locking nuts (10); the electromagnetic clutch (8) comprises a clutch stator (801), a pair of deep groove ball bearings A (802), a clutch rotor (803) and a clutch output end (804); the clutch stator (801) is installed on the support (5) through screws; the clutch rotor (803) is connected with the rotating shaft (7) through a standard component flat key to perform torque transmission; the transmission element (11) is connected with the clutch output end (804) through a screw; the rotor of the angular displacement sensor (13) is connected with the transmission element (11) through an angular displacement sensor transfer block (12), and the stator of the angular displacement sensor (13) is connected with the support (5) through an angular displacement sensor mounting seat (14).
2. A drive assembly for an intermittent motion mechanism as defined in claim 1, wherein: the driving motor (1) is a stepping motor or a direct current brushless torque motor.
3. A drive assembly for an intermittent motion mechanism as defined in claim 1, wherein: the speed reducer (3) is a harmonic speed reducer or a planetary gear speed reducer.
4. A drive assembly for an intermittent motion mechanism as defined in claim 1, wherein: the transmission element (11) is a gear, a worm wheel or a transmission shaft.
5. A drive assembly for an intermittent motion mechanism as defined in claim 1, wherein: the angular displacement sensor (13) is a Hall angular displacement sensor, a rotary transformer, a photoelectric coded disc or a circular induction synchronizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120742704.1U CN215370801U (en) | 2021-04-13 | 2021-04-13 | Drive assembly for intermittent motion mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120742704.1U CN215370801U (en) | 2021-04-13 | 2021-04-13 | Drive assembly for intermittent motion mechanism |
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| Publication Number | Publication Date |
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| CN215370801U true CN215370801U (en) | 2021-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120742704.1U Active CN215370801U (en) | 2021-04-13 | 2021-04-13 | Drive assembly for intermittent motion mechanism |
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| CN (1) | CN215370801U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113108026A (en) * | 2021-04-13 | 2021-07-13 | 中国科学院上海技术物理研究所 | Driving assembly for intermittent motion mechanism |
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2021
- 2021-04-13 CN CN202120742704.1U patent/CN215370801U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113108026A (en) * | 2021-04-13 | 2021-07-13 | 中国科学院上海技术物理研究所 | Driving assembly for intermittent motion mechanism |
| CN113108026B (en) * | 2021-04-13 | 2024-05-07 | 中国科学院上海技术物理研究所 | Driving assembly for intermittent motion mechanism |
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