Single-input dual-output time-sharing operation device

Abstract

The single-input double-output time-sharing operation device has the following advantages: the outer rings of the bearings of the first output end and the second output end are fixed, the inner ring of the bearing of the first output end is connected with the long gear, the transmission shaft is arranged in the long gear and exposes one end outside the long gear, the transmission shaft is connected with the long gear, one small gear is arranged on each side of the long gear and engaged with the long gear, the two ends of the first screw rod are fixed and the inside of the small gear is screw-engaged with the first screw rod, the translation frame is sleeved on the transmission shaft and located outside the long gear, the bearing of the small gear is connected with the translation frame, the end of the transmission shaft exposed outside the long gear is provided with the variable resistance mechanism and the constant resistance mechanism, the motor output gear is connected with the motor, the motor output gear is engaged with the transmission gear, the transmission gear is connected with the transmission shaft, the inside of the transmission gear is screw-engaged with the second screw rod, one end of the second screw rod is connected with the second output end, the damping is arranged at the second screw rod, and the lead angles of the second screw rod and the first screw rod are the same.

Description

Technical Field

[0001] This invention relates to the field of fan-shaped solar array deployment and capture, and more specifically to a time-sharing device with single input and dual output. Background Technology

[0002] For spacecraft, solar panels are the primary power supply devices, and their weight is a key technical indicator for evaluating their practicality. Due to their high aspect ratio, fan-shaped solar panels generate higher power per unit weight, and the deployment mechanism, as a crucial component, directly determines mission success. In existing technologies, the active deployment mechanism and positioning capture mechanism of fan-shaped solar panels often employ dual drive sources, resulting in significant weight overhead. Therefore, there is an urgent need for a compact, single-drive-source, dual-output time-sharing operating device. Summary of the Invention

[0003] The purpose of this invention is to provide a time-sharing device with single input and dual output, which enables a single drive source to drive two mechanisms and reduces weight.

[0004] To achieve the above objectives, the present invention provides a time-sharing working device with a single input and dual output, comprising a long gear, a small gear, a first lead screw, a transmission shaft, a translation frame, a variable resistance mechanism, a motor output gear, a motor, a first output end, a second output end, a constant resistance mechanism, a transmission gear, and a second lead screw; the outer ring of the bearing at the first output end is fixed, and the inner ring of the bearing at the first output end is connected to the long gear; the transmission shaft is disposed inside the long gear, with one end protruding outside the long gear, and the transmission shaft is connected to the long gear; a small gear is provided on each side of the long gear, and the small gear meshes with the long gear; both ends of the first lead screw are fixed, and the small gear is disposed inside the long gear. The first lead screw is helically engaged with the second lead screw; the translation frame is sleeved on the transmission shaft and located outside the long gear; the bearing of the small gear is connected to the translation frame; the end of the transmission shaft exposed outside the long gear is provided with the variable resistance mechanism and the constant resistance mechanism; the motor output gear is connected to the motor; the motor output gear meshes with the transmission gear; the transmission gear is connected to the transmission shaft; the transmission gear is helically engaged with the second lead screw, one end of the second lead screw is connected to the second output end; damping is provided at the second lead screw; the second lead screw and the first lead screw have the same lead angle; the outer ring of the bearing at the second output end is fixed.

[0005] In the aforementioned single-input dual-output time-sharing device, when the motor rotates, the motor output gear drives the transmission gear to rotate. Initially, the resistance of the constant resistance mechanism is greater than the resistance of the variable resistance mechanism, causing the transmission shaft to rotate accordingly, driving the long gear and the first output end to rotate. After the long gear rotates, it transmits power to the small gear through a certain ratio. The small gear is internally screwed to the first lead screw. With the first lead screw fixed, the small gear undergoes axial movement, driving the translation frame to move axially. Since the first and second lead screws have the same lead angle, the ratio of the rotational amount of the transmission gear to the axial movement is the same as that of the second lead screw. When the lead angles are matched, the second lead screw does not rotate under the action of damping, and the first output end outputs the signal. When the resistance of the variable resistance mechanism reaches the resistance of the constant resistance mechanism, the transmission gear continues to rotate, while the transmission shaft no longer rotates. Consequently, the long gear and the first output end stop rotating, and the translation frame no longer generates axial movement. Therefore, the ratio of the rotation amount of the transmission gear to the axial movement amount does not match the lead angle of the second lead screw. Furthermore, since the second lead screw only has rotational motion, under the action of the external force of the transmission gear, the second lead screw rotates, driving the second output end to rotate. At this time, the second output end outputs the signal.

[0006] In the aforementioned single-input dual-output time-sharing working device, the long gear can only rotate; the translation frame can only translate; the second lead screw can only rotate; and the transmission gear and the transmission shaft can only rotate.

[0007] In the aforementioned single-input dual-output time-sharing device, the end of the drive shaft exposed outside the long gear is provided with a groove, the constant resistance mechanism is placed inside the groove, and the variable resistance mechanism is placed outside the groove.

[0008] In the aforementioned single-input dual-output time-sharing device, one end of the drive shaft exposed outside the long gear is connected to the drive gear through its groove.

[0009] In the aforementioned single-input dual-output time-sharing working device, the variable resistance mechanism causes the resistance experienced by the transmission shaft to change during translation; the constant resistance mechanism keeps the transmission force between the transmission shaft and the transmission gear constant.

[0010] In the aforementioned single-input dual-output time-sharing device, the motor output is a continuous output, and the output terminal is switched with the assistance of a variable resistance mechanism and a constant resistance mechanism.

[0011] The aforementioned single-input dual-output time-sharing device further includes a fixed frame. The long gear, the small gear, the first lead screw, the transmission shaft, the translation frame, the variable resistance mechanism, the motor output gear, the motor, the first output end, the second output end, the constant resistance mechanism, the transmission gear, and the second lead screw are all placed inside the fixed frame. The outer ring of the bearing at the first output end is fixedly connected to the inner wall of the fixed frame. Both ends of the first lead screw are fixedly connected to the inner wall of the fixed frame. The outer ring of the bearing at the second output end is fixedly connected to the inner wall of the fixed frame.

[0012] Compared with the prior art, the beneficial technical effects of the present invention are:

[0013] The single-input dual-output time-sharing working device of the present invention has a continuous motor output. The output end is switched by a variable resistance mechanism and a constant resistance mechanism, that is, one input end and two output ends. The two output ends can be connected to other mechanisms respectively, realizing the purpose of driving two mechanisms with a single drive source and reducing weight.

[0014] The single-input dual-output time-division working device of the present invention has a simple structure and reliable operation. Attached Figure Description

[0015] The single-input dual-output time-division multiplexing device of the present invention is given by the following embodiments and figures.

[0016] Figure 1 This is a schematic diagram of a time-sharing device with single input and dual output according to a preferred embodiment of the present invention. Detailed Implementation

[0017] The following will combine Figure 1 The single-input dual-output time-division multiplexing device of the present invention will be described in further detail.

[0018] Figure 1 The diagram shown is a schematic of a time-sharing device with single input and dual output according to a preferred embodiment of the present invention.

[0019] See Figure 1 The single-input dual-output time-sharing working device of this embodiment includes a long gear 1, a small gear 2, a first lead screw 3, a transmission shaft 4, a translation frame 5, a variable resistance mechanism 6, a motor output gear 7, a motor 8, a first output end 9, a second output end 10, a fixed frame 11, a constant resistance mechanism 12, a transmission gear 13, and a second lead screw 14.

[0020] The long gear 1, the small gear 2, the first lead screw 3, the transmission shaft 4, the translation frame 5, the variable resistance mechanism 6, the motor output gear 7, the motor 8, the first output end 9, the second output end 10, the constant resistance mechanism 12, the transmission gear 13, and the second lead screw 14 are all placed inside the fixed frame 11.

[0021] The outer ring of the bearing 15 at the first output end 9 is fixed to the inner wall of the fixed frame 11, and the inner ring of the bearing 15 at the first output end 9 is connected to the long gear 1, so that the long gear 1 only has rotational motion.

[0022] The drive shaft 4 is disposed inside the long gear 1, and one end of it protrudes outside the long gear 1. The drive shaft 4 is connected to the long gear 1.

[0023] A small gear 2 is provided on each side of the long gear 1, and the small gear 2 meshes with the long gear 1; each small gear 2 is equipped with a first lead screw 3, and both ends of the first lead screw 3 are fixed to the inner wall of the fixed frame 11, and the small gear 2 is helically engaged with the first lead screw 3.

[0024] The translation frame 5 is mounted on the transmission shaft 4 and is located outside the long gear 1; the bearing 16 of the small gear 2 is connected to the translation frame 5, and the translation frame 5 can only move in translation within the fixed frame 11;

[0025] The transmission shaft 4 is provided with the variable resistance mechanism 6 and the constant resistance mechanism 12 at one end exposed outside the long gear. The transmission shaft 4 is provided with a groove at one end exposed outside the long gear. The constant resistance mechanism 12 is placed in the groove and the variable resistance mechanism 6 is placed outside the groove.

[0026] The motor output gear 7 is connected to the motor 8; the motor output gear 7 meshes with the transmission gear 13; the transmission gear 13 is connected to the end of the transmission shaft 4 that is exposed outside the long gear. Specifically, the end of the transmission shaft 4 that is exposed outside the long gear is connected to the transmission gear 13 through its groove, and there is only rotational motion between the transmission gear 13 and the transmission shaft 4.

[0027] The variable resistance mechanism 6 can change the resistance experienced by the transmission shaft 4 during translation; the constant resistance mechanism 12 keeps the transmission force between the transmission shaft 4 and the transmission gear 13 constant.

[0028] The transmission gear 13 is internally screwed with the second lead screw 14, and one end of the second lead screw 14 is connected to the second output end 10; the second lead screw 14 and the first lead screw 3 have the same lead angle.

[0029] The outer ring of the bearing 17 of the second output end 10 is fixed to the inner wall of the fixed frame 11.

[0030] See Figure 1 The working principle of the single-input dual-output time-sharing device in this embodiment is as follows:

[0031] When motor 8 rotates, motor output gear 7 drives transmission gear 13 to rotate. Initially, the resistance of constant resistance mechanism 12 is greater than the resistance of variable resistance mechanism 6, so transmission shaft 4 rotates accordingly. This drives long gear 1 to rotate, and the rotation of long gear 1 drives the first output end 9 to rotate. After long gear 1 rotates, it is transmitted to small gear 2 through a certain ratio. Small gear 2 is screwed to the first lead screw 3. Therefore, when the first lead screw 3 is fixed, small gear 2 moves axially (moves away from the first output end 9). Since small gear 2 is only hinged to translation frame 5, translation frame 5 will also move axially. That is, translation frame 5 moves axially at the same time as transmission gear 13 rotates. Damping is set at second lead screw 14. Since the first lead screw 3 and second lead screw 14 are screwed together... With the same lead angle, the ratio of the rotational amount to the axial motion of the transmission gear 13 matches the lead angle of the second lead screw 14. Under the action of damping, the second lead screw 14 does not rotate, and the first output end 9 outputs at this time. When the resistance of the variable resistance mechanism 6 reaches the resistance of the constant resistance mechanism 12, the transmission gear 13 continues to rotate, while the transmission shaft 4 no longer rotates. Consequently, the long gear 1 and the first output end 9 no longer rotate, and the translation frame 5 no longer generates axial motion. Therefore, the ratio of the rotational amount to the axial motion of the transmission gear 13 does not match the lead angle of the second lead screw 14. Furthermore, since the second lead screw 14 only has rotary motion, under the action of the external force of the transmission gear 13, the second lead screw 14 will rotate, driving the second output end 10 to rotate. At this time, the second output end 10 outputs.

[0032] In this embodiment, the single-input dual-output time-sharing device has a continuous output from motor 8, with the output switching assisted by a variable resistance mechanism 6 and a constant resistance mechanism 12. The output switching time can be adjusted by designing the spacing between the translation frame 5 and the long gear 1, as well as the length of the transmission shaft 4 and the second lead screw 14.

[0033] The single-input dual-output time-sharing device of this embodiment is applied to flexible solar wings such as fan-shaped solar wings, with the two output ends connected to the deployment mechanism and the positioning capture mechanism, respectively.

[0034] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications to the technical solutions of the present invention by utilizing the methods and techniques disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall fall within the protection scope of the technical solutions of the present invention.

[0035] The parts of this invention not described in detail are common knowledge to those skilled in the art.

Claims

1. A time-sharing device with single input and dual output, characterized in that, It includes a long gear, a small gear, a first lead screw, a transmission shaft, a translation frame, a variable resistance mechanism, a motor output gear, a motor, a first output end, a second output end, a constant resistance mechanism, a transmission gear, and a second lead screw; The inner ring of the bearing at the first output end is connected to the long gear; The drive shaft is disposed inside the long gear, with one end exposed outside the long gear, and the drive shaft is connected to the long gear; A small gear is provided on each side of the long gear, and the small gear meshes with the long gear; the two ends of the first lead screw are fixed, and the small gear is helically engaged with the first lead screw. The translation frame is sleeved on the drive shaft and located outside the long gear; the bearing of the small gear is connected to the translation frame; The variable resistance mechanism and the constant resistance mechanism are provided at the end of the drive shaft that is exposed outside the long gear; The motor output gear is connected to the motor; the motor output gear meshes with the transmission gear; The transmission gear is connected to the transmission shaft; The transmission gear is internally screwed to the second lead screw, one end of which is connected to the second output end; damping is provided at the second lead screw. The second lead screw has the same lead angle as the first lead screw; When the motor rotates, the motor output gear drives the transmission gear to rotate. Initially, the resistance of the constant resistance mechanism is greater than that of the variable resistance mechanism, causing the transmission shaft to rotate accordingly. This rotation drives the long gear and the first output end to rotate. After the long gear rotates, it transmits power to the small gear. The small gear is internally engaged with the first lead screw using a helical connection. With the first lead screw fixed, the small gear undergoes axial movement, driving the translation frame to move axially. Since the first and second lead screws have the same lead angle, the ratio of the rotational amount of the transmission gear to the axial movement matches the lead angle of the second lead screw. The second lead screw, under resistance... Under the action of the nylon, no rotation occurs, and the first output end outputs at this time; when the resistance of the variable resistance mechanism reaches the resistance of the constant resistance mechanism, the transmission gear continues to rotate, while the transmission shaft no longer rotates with it, and consequently the long gear and the first output end no longer rotate, and the translation frame no longer produces axial movement. Therefore, the ratio of the rotation amount of the transmission gear to the axial movement amount does not match the lead angle of the second lead screw. Furthermore, since the second lead screw only has rotational motion, under the action of the external force of the transmission gear, the second lead screw rotates, driving the second output end to rotate, and at this time, the second output end outputs the output. The long gear can only rotate; the translation frame can only translate; the second lead screw can only rotate. The drive shaft has a groove at one end exposed outside the long gear, the constant resistance mechanism is placed inside the groove, and the variable resistance mechanism is placed outside the groove; The end of the drive shaft that protrudes from the long gear is connected to the drive gear through the groove; The variable resistance mechanism causes the resistance experienced by the drive shaft to change during translation; the constant resistance mechanism keeps the transmission force between the drive shaft and the drive gear constant. The single-input dual-output time-sharing working device further includes a fixed frame. The long gear, the small gear, the first lead screw, the transmission shaft, the translation frame, the variable resistance mechanism, the motor output gear, the motor, the first output end, the second output end, the constant resistance mechanism, the transmission gear, and the second lead screw are all placed inside the fixed frame. The outer ring of the bearing at the first output end is fixedly connected to the inner wall of the fixed frame. Both ends of the first lead screw are fixedly connected to the inner wall of the fixed frame. The outer ring of the bearing at the second output end is fixedly connected to the inner wall of the fixed frame.

2. The time-sharing device with single input and dual output as described in claim 1, characterized in that, The motor output is continuous, and the output end is switched with the assistance of a variable resistance mechanism and a constant resistance mechanism.

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