A rope drive expansion mechanism drive device simulation testing device and method

Abstract

The application provides a rope drive expansion mechanism driving device simulation testing device and method. The device is characterized in that two longitudinal rods (2) are symmetrically installed on the middle of the bottom frame (1), the top of the two longitudinal rods (2) is interconnected through a horizontal rod (3), two groups of pulley sets A (4) are symmetrically installed on the bottom frame (1), two groups of pulley sets B (5) are symmetrically installed on the longitudinal rods (2), the bottom frame (1) is provided with a mounting plate (8), a driving device is installed on the mounting plate (8), a pulley set C (6) is installed on a counterweight (7), a first steel wire rope is wound around the pulley sets A (4) and the pulley sets B (5) and connected at the tail of the driving device on both sides of the winding wheel, clamped in the rope groove below the pulley set C (6), the counterweight (7) simulates a load, and the second steel wire rope is connected to the middle winding wheel in the driving device. The application can simulate the boundary conditions of the driving device, has the advantages of simple structure, convenient debugging and testing, good adaptability after debugging and mechanism.

Description

Technical Field

[0001] This invention belongs to the technical field of ground equipment for space structure mechanisms, and particularly relates to a simulation test device and method for a rope-driven extension mechanism. Background Technology

[0002] With the continuous development and progress in the fields of space security and deep space exploration, the application prospects of space extension mechanisms are becoming increasingly broad. Space extension mechanisms are used to support the on-orbit deployment of loads. The drive devices mostly adopt steel wire rope drive. This type of drive device can achieve flexible drive, so the structure is relatively complex and assembly and debugging are difficult. Summary of the Invention

[0003] To address the difficulty in debugging and testing drive devices, this invention provides a simulation testing device for a rope-driven extension mechanism drive device. The device comprises a base frame 1, a longitudinal rod 2, a transverse rod 3, a pulley block A4, a pulley block B5, a pulley block C6, a counterweight block 7, and a mounting plate 8.

[0004] Two longitudinal bars 2 are symmetrically installed on both sides of the upper middle of the base frame 1. The tops of the two longitudinal bars 2 are interconnected by a crossbar 3. Two sets of pulley blocks A4 are symmetrically installed on the base frame 1, and two sets of pulley blocks B5 are symmetrically installed on the longitudinal bars 2. There is a mounting plate 8 on the base frame 1, and the drive device is installed on the mounting plate 8. The pulley block C6 is installed on the counterweight block 7.

[0005] The first wire rope passes over pulley block A4 and pulley block B5, and is connected end to end to the winding wheels on both sides of the drive device. The drive device is driven to unfold by winding the rope through the winding wheels on both sides. Pulley block C6 is located above the first wire rope between the two pulley blocks B5. The first wire rope is stuck in the rope groove below pulley block C6. The counterweight 7 simulates the load and is connected to the winding wheel in the middle of the drive device through the second wire rope.

[0006] Furthermore, the bottom frame 1 is constructed from aluminum profiles, and the various sections of the profiles are connected by corner blocks, profile screws, and profile nuts.

[0007] Furthermore, both the longitudinal bar 2 and the transverse bar 3 are made of aluminum profiles, and the sections of the profiles are connected by corner blocks, profile screws and profile nuts.

[0008] Furthermore, the two sets of pulleys A4 are symmetrically mounted on the base frame 1 via adapter blocks, with their height corresponding to the height of the drive device rope, in order to change the direction of the first wire rope.

[0009] Furthermore, the pulley block A4 includes a pulley base 4-1, a pulley bracket A4-2, a pulley A4-3, a rolling bearing 4-4, a central shaft 4-5, a bushing 4-6, a snap fastener 4-7, a rotating shaft 4-8, and a bushing 4-9. The rolling bearing is installed inside the pulley A4-3 and is mounted on the pulley bracket A4-2 via the central shaft 4-5 and the bushing 4-6. The central shaft 4-5 has threaded holes at both ends. The snap fastener 4-7 is fixed to the central shaft 4-5 with screws. The pulley bracket A4-2 is connected to the pulley base 4-1 via the rotating shaft 4-8 and the bushing 4-9, and the pulley bracket A4-2 can rotate around the rotating shaft. Both the snap fastener 4-7 and the pulley bracket A4-2 have rope holes.

[0010] Furthermore, pulley block B5 consists of pulley bracket B5-1, protective cover 5-2, pulley B5-3, bearing 5-4, and pulley shaft 5-5. Rolling bearing is installed in the inner cavity of pulley B5-3, and it is mounted on pulley bracket B5-1 through pulley shaft 5-5 and protective cover 5-2. The structure of pulley block C6 is the same as that of pulley block B5.

[0011] Furthermore, there is a lifting eye screw below the counterweight 7, which is connected to the intermediate winding wheel of the drive unit via a second steel wire rope.

[0012] Furthermore, the mounting plate 8 is mounted on the base frame 1 by profile screws and profile nuts, providing an interface for mounting the drive unit during testing.

[0013] Furthermore, one end of the first wire rope is fixedly wound around a winding wheel on one side of the drive device, and the other end is wound and fixedly wound around a pulley block A4 on one side, a pulley block B5 on one side, a pulley block B5 on the other side, a pulley block A4 on the other side of the drive device.

[0014] The present invention also provides a method for simulating and testing a drive device of a rope-driven extension mechanism, characterized by comprising the following steps:

[0015] First, the drive unit is mounted on the center of the bottom frame 1 via the mounting plate 8;

[0016] Then, the two sets of pulley groups A4 are symmetrically installed on the middle positions of the two sides of the bottom frame 1 using the adapter block. The installation height of pulley group A4 is adjusted according to the height of the rope exit point of the winding wheel on both sides of the drive device. Then, the vertical rod 2 and the horizontal rod 3 are installed on the bottom frame 1 at the position corresponding to pulley group A4. The two sets of pulley groups B5 are installed on the vertical rod 2 using the adapter block.

[0017] Next, using the first steel wire rope, one end is fixedly wound around the winding wheel on one side of the drive device, and the other end is wound and fixedly wrapped around the pulley group A4 on one side, the pulley group B5 on one side, the pulley group B5 on the other side, the pulley group A4 on the other side of the drive device in sequence.

[0018] Then, connect the counterweight 7 and the pulley block C6, and lock the rope groove below the pulley block C6 onto the first steel wire rope between the two pulley blocks B5 to simulate the load. Tighten the eye bolt below the counterweight 7.

[0019] Finally, the second steel wire rope is used to connect the lifting eye screw on counterweight 7 to the intermediate winding wheel of the drive device, completing the construction of the simulation test device.

[0020] When testing the unfolding function of the drive device, the winding wheels on both sides of the drive device simultaneously wind up the rope, and the wire rope turns through pulley block A4 and pulley block B5, and lifts the counterweight block 7 through pulley block C6. At this time, the middle winding wheel releases the rope. When testing the retracting function of the drive device, the middle winding wheel of the drive device winds up the rope, pulling the counterweight block 7 downward. At this time, the winding wheels on both sides release the rope simultaneously.

[0021] The rope-driven extension mechanism drive device simulation test device of the present invention can realistically simulate the boundary conditions of the drive device, and has the advantages of simple structure, convenient debugging and testing, and good adaptability to the mechanism after debugging. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the composition of the simulation test device for the rope-driven extension mechanism drive device of the present invention;

[0023] Figure 2 This is a schematic diagram of an example of pulley block A of the present invention.

[0024] Figure 3 This is a schematic diagram of an example of pulley block B of the present invention.

[0025] Figure 4 This is a schematic diagram of the installation of the bottom frame drive device of the simulation test device for the rope-driven extension mechanism drive device of the present invention. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments disclosed in the present invention will be described in further detail below with reference to the accompanying drawings.

[0027] A simulation test device for a rope-driven extension mechanism is provided to support ground debugging of the drive device.

[0028] Figure 1 This is a schematic diagram of the composition of a simulation test device for the rope-driven extension mechanism of the present invention. The left side view is a side view, and the right side view is a front view. Figure 1 As shown, the simulation test device for the rope-driven extension mechanism in this invention consists of a base frame 1, a longitudinal bar 2, a transverse bar 3, a pulley block A4, a pulley block B5, a pulley block C6, a counterweight block 7, and a mounting plate 8.

[0029] The base frame 1 is constructed from profiles. Preferably, the base frame 1 is constructed from aluminum profiles, and the various sections of the profiles are connected by corner blocks, profile screws, and profile nuts.

[0030] Two longitudinal bars 2 are symmetrically installed on both sides of the middle of the upper part of the base frame 1, and the top of the two longitudinal bars 2 are interconnected by a crossbar 3. Both the longitudinal bars 2 and the crossbar 3 are made of aluminum profiles, and in the same way as the base frame 1, the sections of the profiles are connected by corner blocks, profile screws and profile nuts.

[0031] The rope-driven extension mechanism driving device simulation test device designed in this invention changes the direction of the first steel wire rope of the driving device through pulley block A4 and pulley block B5. Pulley block C6 is connected to counterweight block 7, and the first steel wire rope is stuck in the rope groove below pulley block C6, thereby simulating the load of the driving device.

[0032] Two sets of pulley blocks A4 are symmetrically installed on the base frame 1. Preferably, the two sets of pulley blocks A4 are symmetrically installed on the base frame 1 through an adapter block. The height corresponds to the height of the drive device rope and is used to change the direction of the wire rope.

[0033] Pulley block B5 and pulley block C6 serve different purposes.

[0034] Two sets of pulley blocks B5 are symmetrically installed on the longitudinal rod 2 for rope guidance. Preferably, the pulley blocks B5 are installed on the longitudinal rods 2 on both sides via adapter blocks to change the direction of the wire rope of the drive device.

[0035] The pulley block C6 is installed on the counterweight block 7. The pulley block C6 is located above the first wire rope, and the first wire rope is stuck in the rope groove below the pulley block C6.

[0036] Below the counterweight 7 is a lifting eye screw, which connects to another drive rope of the drive unit and is connected to the middle winding wheel of the drive unit via a second steel wire rope.

[0037] The base frame 1 has a mounting plate 8, which provides a mounting interface for the drive unit. Preferably, the mounting plate 8 is mounted on the base frame 1 by profile screws and profile nuts, providing a mounting interface for the drive unit during testing. Preferably, the mounting plate 8 can be moved and adjusted in position on the base frame 1, and the drive unit is mounted on the mounting plate 8.

[0038] During the simulation test, the drive device is driven to unfold by winding the rope through the two side winding wheels. The first steel wire rope passes through pulley block A4 and pulley block B5 and is connected to the winding wheels on both sides of the drive device. The drive device is driven to retract by winding the rope through the middle winding wheel. The counterweight 7 simulates the load. The second steel wire rope is directly connected to the middle winding wheel and the counterweight 7.

[0039] Figure 2 This is a schematic diagram of an example of pulley block A of the present invention. The top is a front view, and the bottom is a top view. Figure 2As shown, the pulley block A4 of the present invention comprises a pulley base 4-1, a pulley bracket A4-2, a pulley A4-3, a rolling bearing 4-4, a central shaft 4-5, a bushing 4-6, a buckle 4-7, a rotating shaft 4-8, and a bushing 4-9. The rolling bearing is installed inside the pulley A4-3 and is mounted on the pulley bracket A4-2 via the central shaft 4-5 and the bushing 4-6. The central shaft 4-5 has threaded holes at both ends. The buckle 4-7 is fixed to the central shaft 4-5 by screws. The pulley bracket A4-2 is connected to the pulley base 4-1 via the rotating shaft 4-8 and the bushing 4-9, and the pulley bracket A4-2 can rotate around the rotating shaft. Both the buckle 4-7 and the pulley bracket A4-2 have rope holes.

[0040] Figure 3 This is a schematic diagram of an example of pulley block B of the present invention. The left side is a side view, and the right side is a front view. Figure 3 As shown, pulley block B5 consists of pulley bracket B5-1, protective cover 5-2, pulley B5-3, bearing 5-4, and pulley shaft 5-5. A rolling bearing is installed inside the cavity of pulley B5-3, which is mounted on pulley bracket B5-1 via pulley shaft 5-5 and protective cover 5-2. Pulley block C6 has a similar structure to pulley block B5.

[0041] Figure 4 This is a schematic diagram of the installation of the bottom frame drive device of the simulation test device for the rope-driven extension mechanism drive device of the present invention. Figure 4 As shown, the simulation test method of the rope-driven extension mechanism drive device designed in this invention is as follows: When in use, the drive device is first installed in the center of the bottom frame 1 through the mounting plate 8.

[0042] Then, the two sets of pulley blocks A4 are symmetrically installed on the middle positions of both sides of the bottom frame 1 using adapter blocks. The installation height of pulley blocks A4 is adjusted according to the height of the rope exit point of the winding wheel on both sides of the drive device. Then, the vertical rod 2 and the horizontal rod 3 are installed on the bottom frame 1 at the positions corresponding to pulley blocks A4. The two sets of pulley blocks B5 are installed on the vertical rod 2 using adapter blocks.

[0043] Next, using the first steel wire rope, one end is fixedly wound around the winding wheel on one side of the drive device, and the other end is successively wound around and fixed around the pulley block A4 on one side, the pulley block B5 on one side, the pulley block B5 on the other side, the pulley block A4 on the other side of the drive device.

[0044] Subsequently, the counterweight 7 and pulley block C6 are connected, and the rope groove below pulley block C6 is clamped onto the first wire rope between the two pulley blocks B5 to simulate the load. The eye bolt is then tightened under the counterweight 7.

[0045] Finally, the second steel wire rope is used to connect the lifting eye screw on the counterweight 7 to the winding wheel in the middle of the drive device to complete the construction of the simulation test device.

[0046] When testing the unfolding function of the drive device, the winding wheels on both sides of the drive device simultaneously wind up the rope. The first wire rope is deflected through pulley blocks A4 and B5, and the counterweight 7 is lifted through pulley block C6. At this time, the middle winding wheel releases the rope. When testing the retracting function of the drive device, the middle winding wheel of the drive device winds up the rope, pulling the counterweight 7 downward. At this time, the winding wheels on both sides release the rope simultaneously.

[0047] The rope-driven extension mechanism driving device simulation test device of the present invention has a simple structure, can realistically simulate the boundary conditions of the driving device, is convenient for debugging and testing, and has good adaptability to the mechanism after debugging.

[0048] Although the preferred embodiments of the present invention have been disclosed above, they are 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 brief 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.

[0049] The contents not described in detail in this specification are common knowledge to those skilled in the art.

Claims

1. A simulation test device for a rope-driven extension mechanism, characterized in that, It includes a base frame (1), longitudinal bars (2), cross bars (3), pulley block A (4), pulley block B (5), pulley block C (6), counterweight (7), and mounting plate (8). Two vertical rods (2) are symmetrically installed on the upper middle sides of the bottom frame (1). The tops of the two vertical rods (2) are interconnected by a horizontal rod (3). Two sets of pulley groups A (4) are symmetrically installed on the bottom frame (1), and two sets of pulley groups B (5) are symmetrically installed on the vertical rods (2). There is a mounting plate (8) on the bottom frame (1). The drive device is installed on the mounting plate (8), and the pulley group C (6) is installed on the counterweight (7). The first wire rope passes over pulley block A (4) and pulley block B (5), and is connected end to end to the winding wheels on both sides of the drive device. The drive device drives the movement by winding the rope through the winding wheels on both sides. Pulley block C (6) is located above the first wire rope between the two pulley blocks B (5). The first wire rope is stuck in the rope groove below pulley block C (6). The counterweight (7) simulates the load and is connected to the winding wheel in the middle of the drive device through the second wire rope. The two sets of pulley groups A (4) are symmetrically installed on the bottom frame (1) through the adapter block, and their height corresponds to the height of the drive device rope, which is used to change the direction of the first wire rope; Pulley block B (5) consists of pulley bracket B (5-1), protective cover (5-2), pulley B (5-3), bearing (5-4), and pulley shaft (5-5). The inner cavity of pulley B (5-3) is equipped with a rolling bearing, which is installed on pulley bracket B (5-1) through pulley shaft (5-5) and protective cover (5-2). Pulley block C (6) has the same structure as pulley block B (5). Below the counterweight (7) is a lifting eye screw, which is connected to the winding wheel in the middle of the drive unit via a second steel wire rope; One end of the first wire rope is fixedly wound around the winding wheel on one side of the drive device, and the other end is wound and fixed around the pulley block A (4) on one side, the pulley block B (5) on one side, the pulley block B (5) on the other side, the pulley block A (4) on the other side of the drive device.

2. The simulation test device for the rope-driven extension mechanism according to claim 1, characterized in that, The bottom frame (1) is constructed using aluminum profiles, and the various sections of the profiles are connected by corner blocks, profile screws and profile nuts.

3. The simulation test device for the rope-driven extension mechanism according to claim 1, characterized in that, The longitudinal bar (2) and the transverse bar (3) are both aluminum profiles, and the sections of the profiles are connected by corner blocks, profile screws and profile nuts.

4. The simulation test device for the rope-driven extension mechanism according to claim 1, characterized in that, The pulley block A (4) includes a pulley base (4-1), a pulley bracket A (4-2), a pulley A (4-3), a rolling bearing (4-4), a central shaft (4-5), a bushing (4-6), a buckle (4-7), a rotating shaft (4-8), and a bushing (4-9). The rolling bearing is installed in the inner cavity of the pulley A (4-3) and is mounted on the pulley bracket A (4-2) through the central shaft (4-5) and the bushing (4-6). The central shaft (4-5) has threaded holes at both ends. The buckle (4-7) is fixed to the central shaft (4-5) by screws. The pulley bracket A (4-2) is connected to the pulley base (4-1) through the rotating shaft (4-8) and the bushing (4-9). The pulley bracket A (4-2) can rotate around the rotating shaft. Both the buckle (4-7) and the pulley bracket A (4-2) have rope holes.

5. The simulation test device for the rope-driven extension mechanism according to claim 1, characterized in that, The mounting plate (8) is mounted on the base frame (1) by profile screws and profile nuts, providing an interface for mounting the drive unit during testing.

6. A simulation test method for a rope-driven extension mechanism drive device, characterized in that, The simulation test device using the rope-driven extension mechanism drive device as described in claim 1 includes the following steps: First, the drive unit is installed in the center of the bottom frame (1) via the mounting plate (8); Then, the two sets of pulley groups A (4) are symmetrically installed on the middle positions of the two sides of the bottom frame (1) using the adapter block. The installation height of pulley group A (4) is adjusted according to the height of the rope exit point of the winding wheel on both sides of the drive device. Then, the vertical rod (2) and the horizontal rod (3) are installed on the bottom frame (1) at the position corresponding to pulley group A (4). The two sets of pulley groups B (5) are installed on the vertical rod (2) using the adapter block. Next, the first wire rope is used, with one end fixedly wound around the winding wheel on one side of the drive device, and the other end successively wound around and fixed around the pulley group A (4) on one side, the pulley group B (5) on one side, the pulley group B (5) on the other side, the pulley group A (4) on the other side of the drive device; Subsequently, the counterweight (7) and pulley block C (6) are connected, and the rope groove below the pulley block C (6) is clamped on the first steel wire rope between the two pulley blocks B (5) to simulate the load. The lifting eye screw is screwed under the counterweight (7). Finally, the second steel wire rope is used to connect the upper eyelet screw of the counterweight (7) to the intermediate winding wheel of the drive device to complete the construction of the simulation test device. When testing the unfolding function of the drive device, the winding wheels on both sides of the drive device simultaneously wind up the rope, and the wire rope turns through pulley block A (4) and pulley block B (5), and lifts the counterweight block (7) through pulley block C (6). At this time, the middle winding wheel releases the rope. When testing the retracting function of the drive device, the middle winding wheel of the drive device winds up the rope, pulls the counterweight block (7) downward, and at this time, the winding wheels on both sides release the rope synchronously.

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