Openable electric roof for rocket power test platform

Abstract

The utility model discloses an openable electric roof for a rocket power test platform, and the roof comprises a movable cell which comprises a driving cell, a first driven cell and a second driven cell, the first driven cell and the second driven cell are driven by the driving cell, the driving cell is located at the outermost side, and the second driven cell is located at the innermost side; the guide rail module is used for allowing the movable cells to slide, the guide rail module is installed on a supporting component, the driving device is arranged on the active cells, and the movable cells move between the stretching state and the retracting state based on the driving device. The movable unit grids are used at the top of the test platform, the movable unit grids are closed to cover the engine on the lower side when the electric roof is idle, the top surface of the electric roof adopts a metal panel to achieve a certain shielding effect, and in addition, the whole electric roof adopts a metal structure to achieve a lightning protection effect when being mounted at a high position.

Description

Technical Field

[0001] This utility model relates to the field of aerospace and space propulsion technology, specifically to an openable electric roof for a rocket propulsion test platform. Background Technology

[0002] With the development of aerospace technology, the requirements for rocket engines in launch missions and cost control are becoming increasingly stringent. During the testing and verification phase, rocket engines need to be tested, requiring specialized high-altitude simulation test benches. As the size of the engine increases, the test benches need to be enlarged. The question of how to shield the rocket engine when it is idle and how to remove the shield during operation is becoming increasingly important. Utility Model Content

[0003] In view of this, this application proposes an operable electrically operated roof for a rocket propulsion test platform (engine vertical high-altitude simulation test platform) to solve the aforementioned problems. This electrically operated roof provides a certain degree of shielding.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] A rocket-powered test platform with an operable electrically operated roof, comprising:

[0006] The active cell includes an active cell and a first and a second passive cell driven by the active cell, wherein the active cell is located on the outermost side and the second passive cell is located on the innermost side.

[0007] A guide rail module, wherein the guide rail module is used for sliding the movable cell, the guide rail module is mounted on a support component, and

[0008] A driving device is disposed on the active cell, and the active cell is moved between an extended state and a retracted state based on the driving device.

[0009] Preferably, the driving device includes a drive motor, the output end of which is provided with a gear that meshes with a rack, and the rack is disposed on the guide rail module.

[0010] Preferably, the guide rail module includes a first guide rail component, a second guide rail component, and a third guide rail component arranged in parallel, with the rack disposed on the first guide rail component.

[0011] Preferably, the first guide rail component has a groove, the bottom of the groove is provided with a guide rail, the rack is disposed on the side wall of the first guide rail component, and the gear is located between the guide rail and the side wall and meshes with the rack.

[0012] Preferably, the first guide rail component, the second guide rail component, and the third guide rail component are respectively disposed on the guide rail pad, and a reinforcing part is provided on the lower side of the guide rail pad.

[0013] Preferably, the length of the first guide rail component is greater than the length of the second guide rail component, and the length of the second guide rail component is greater than the length of the third guide rail component.

[0014] Preferably, the drive motor is mounted on the bottom side of the side column of the active cell via a bracket.

[0015] Preferably, the active cell includes: main beams, secondary beams, side columns, and bottom columns.

[0016] The main beam has a certain curvature;

[0017] One end of the side column is fixed to the main beam via a connector, and the other end is fixed to the bottom column. The side of the bottom column away from the side column is slidably mounted on the first guide rail component.

[0018] The secondary beam is installed between the two main beams, and a metal shielding plate is provided in the hollow area enclosed by the secondary beam and the main beam.

[0019] Preferably, the shield is an aluminum plate or an aluminum-magnesium alloy plate with a thickness between 2-5 mm.

[0020] Preferably, a sealing strip is provided on the inner side of the active cell, sealing strips are provided on both the inner and outer sides of the first passive cell, and a sealing strip is provided on the outer side of the second passive cell.

[0021] The side post of the first driven cell has a brush extending toward the active cell.

[0022] Beneficial effects

[0023] The rocket propulsion test platform proposed in this application has an operable electric roof with movable cells. During experiments, these cells are moved and retracted under control. When not in use, the cells are closed to cover the engine (such as a liquid hydrogen-liquid oxygen engine) below. The top surface of the electric roof is made of a metal panel (such as an aluminum panel), which provides a certain degree of shielding. In addition, the entire electric roof is made of metal, and its installation at a high location can also serve as lightning protection.

[0024] Other features and aspects of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0025] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this application together with the specification and serve to explain the principles of this application.

[0026] Figure 1 and 2 This is a three-dimensional structural diagram of an operable electric roof for a rocket propulsion test platform according to an embodiment of this application.

[0027] Figure 3 for Figure 2 A side view of the electric roof;

[0028] Figure 4a for Figure 3 Enlarged view of point A in the middle;

[0029] Figure 4b for Figure 3 Enlarged view of point B in the middle;

[0030] Figure 5 for Figure 3 A diagram illustrating the hidden link bar;

[0031] Figure 6 for Figure 5 Enlarged view of point C in the middle;

[0032] Figure 7 This is a schematic diagram of a drive device for the side post connection according to an embodiment of this application;

[0033] Figure 8 and Figure 9 A schematic diagram showing the installation of the drive device according to an embodiment of this application;

[0034] Figure 10a This is a schematic diagram of the connection between the main beam and the secondary beam in an embodiment of this application;

[0035] Figure 10b for Figure 10a An explosion diagram;

[0036] Figure 11 This is a schematic diagram of the guide rail module connection bracket according to an embodiment of this application;

[0037] Figure 12 This is a schematic diagram showing the active cell in a collapsed state according to an embodiment of this application;

[0038] Figure 12a This is a schematic diagram from one perspective showing the active cell in a collapsed state according to an embodiment of this application.

[0039] Figure 12b for Figure 12a A magnified view of a portion of point D in the middle;

[0040] Figure 13 This is a schematic diagram of the active cell in an extended state according to an embodiment of this application;

[0041] Figure 14 This is a cross-sectional schematic diagram showing the contact between the side post of the active cell and the side post of the first passive cell in an embodiment of this application. Detailed Implementation

[0042] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0043] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0044] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0045] Example

[0046] Next, combine Figures 1-14 This application describes the operable electrically operated roof (hereinafter referred to as the electrically operated roof) for the rocket-powered test platform proposed in this application.

[0047] Figure 1 and 2 This is a three-dimensional structural diagram of an electric roof according to an embodiment of this application.

[0048] The motorized roof includes movable cells, which include an active cell 110 and a first driven cell 120 and a second driven cell 130 driven by the active cell 110.

[0049] The guide rail module 160 has movable cells that can slide on it. The guide rail module 160 is mounted on a support component 150, which is installed on an operable motorized roof. A shielding part 170 is provided on one side of the active cell 110. A water collection trough 180 is provided within the support component 150 to drain rainwater and other pollutants.

[0050] A driving device is used to drive the active cell 110, causing the active cell to move between an extended state and a retracted state (state transition). The driving device includes a drive motor and a transmission mechanism driven by the drive motor. The transmission mechanism is used to drive the rotation of the drive motor to move the active cell on the guide rail module 160. In this embodiment, the transmission mechanism includes a gear and a rack (i.e., a gear and a rack that meshes with the gear), with the gear and rack engaging.

[0051] The active cell includes an active cell 110, a first passive cell 120, and a second passive cell 130. In the retracted state (when collapsed), the active cell 110 is located on the outermost side, and the second passive cell 130 is located on the innermost side.

[0052] The active cell side is equipped with a drive device 140, which includes a drive motor 144. The output end of the drive motor 144 is provided with a gear 142, which meshes with a rack 141. The rack 141 is disposed on the guide rail module 160.

[0053] The guide rail module 160 includes a first guide rail component 161, a second guide rail component 162, and a third guide rail component 163 arranged in parallel, which are respectively disposed on a guide rail pad 152. A reinforcing part 153 (also called a channel steel) is provided on the lower side of the guide rail pad 152. The support component 150 includes a support member 151, which is installed on the test platform (such as the top of the test platform). In this embodiment, the first guide rail component 161, the second guide rail component 162, and the third guide rail component 163 are parallel to each other, and the length of the first guide rail component 161 is greater than the length of the second guide rail component 162, and the length of the second guide rail component 162 is greater than the length of the third guide rail component 163. In this embodiment, the length of the rack 141 is the same as the length of the first guide rail component 161.

[0054] The gear 142 is disposed on the first guide rail component 161. Preferably, the gear 142 is disposed on the side wall 161a of the first guide rail component 161, with the toothed side of the gear 142 facing towards the side wall 161a. The gear 142 is mounted on the output end of the drive motor 144, which is mounted on the bottom side of the side post 112 via a bracket 143. In this embodiment, the first guide rail component 161 has a groove, and a guide rail 161b is disposed at the bottom of the groove. The guide rail 161b is matched with a roller 119a, which is mounted on the bottom of the bottom post 119. The gear 142 is located between the guide rail 161b and the side wall 161a. A fastener 119a1 is mounted on the roller 119a. The fastener 119a1 is L-shaped and matches the protrusion 161a1 to prevent derailment. Preferably, the cross-section of the guide rail is I-shaped.

[0055] Driven by the drive motor 144, the gear 142 rotates. The gear 142 meshes with the rack 141, thereby causing the active cell 110 to slide along the first guide rail component 161. The sliding of the active cell 110 causes the first driven cell 120 to slide, and the first driven cell 120 causes the second driven cell 130 to slide, thus causing the active cell to move between an extended state and a retracted state (state transition). In the extended state, as shown... Figure 1 and Figure 2 As shown, activating the masking / shielding function, in the retracted state, as... Figure 12 and Figure 12a As shown, the active cell 110, the first driven cell 120, and the second driven cell 130 are stacked together. The active cell 110 is on the outermost side. Linkage mechanisms 190 are respectively provided between the active cell 110 and the first driven cell 120, and between the active cells of the first driven cell 120 and the second driven cell 130. These linkage mechanisms are used to transfer the movement of the active cell to the driven cells, and to the movement between the driven cells. This linkage mechanism is disclosed in prior art such as CN110159008A, and will not be described here.

[0056] The active unit 110 includes: a main beam 113, a secondary beam 114, an edge column 112, and a bottom column 119. The main beam 113 has a certain curvature and is arched. Preferably, it can be composed of multiple segments spliced ​​together (e.g., two segments spliced ​​together, with the included angle between the two segments being between 160-170°). The main beam 113 and the edge column 112 are fixed together by connectors 115. The edge column 112 is fixedly connected to the bottom column 119 (see...). Figure 7 The secondary beam 114 is installed on one side of the main beam 113 (e.g., the secondary beam 114 is installed vertically on one side of the main beam 113 via angle bracket 113a, see...). Figure 10b The secondary beams 114 are installed at intervals between the two main beams or between the two bottom columns 119. The secondary beams 114 and the main beams 113 form a hollow area, which is equipped with a shielding plate 111. The shielding plate 111 is made of metal, such as aluminum plate or aluminum-magnesium alloy plate (with a thickness between 2-5mm, such as 3mm), to ensure mechanical strength and provide shielding. The structure of the first driven cell 120 and the second driven cell 130 is similar to that of the active cell. The first driven cell 120 is slidably installed on the second guide rail component 162 via the bottom column 129 (also called the lower frame) and the matching roller 129a. The second driven cell 130 is slidably installed on the third guide rail component 163 via the bottom column (also called the lower frame) 139 and the matching roller 139a.

[0057] In one embodiment, sealing strips are respectively provided on the outer sides of the active cell 110 and the first driven cell 120 (see...). Figure 13The first driven cell 120 has a sealing strip 122a on its side post 122, and the driven cell 110 has a sealing strip 112a on its side post 112. In the retracted state, the sealing strips 122a and 112a abut against each other. A brush 122b extending towards the side post 122 is provided on the side post 122 facing the side post 122, and the brush 122b cleans the driven cell 110 as it moves. Similarly, a similar structure is provided between the first driven cell 120 and the second driven cell 130. Preferably, the sealing strip is made of EPDM rubber.

[0058] In one embodiment, sealing strips are respectively provided on the outer sides of the first driven cell 120 and the second driven cell 130. When in the contracted state, the sealing strips abut against each other to seal (e.g., to prevent rainwater from entering). Preferably, the sealing strips are made of EPDM rubber.

[0059] The guide rail module 160 is laid on the support component 150, which is laid on the test platform. This modular design improves construction efficiency. The guide rail module 160 includes a pair of parallel first guide rail components 161, 162, and 163. The first guide rail component 161 is on the outermost side, and the third guide rail component 163 is on the innermost side. The length of the first guide rail component 161 is greater than the length of the second guide rail component 162, and the length of the second guide rail component 162 is greater than the length of the third guide rail component 163. The lengths of the first guide rail component 161, the second guide rail component 162, and the third guide rail component 163 on one side are arranged side-by-side.

[0060] The above embodiments are only for illustrating the technical concept and features of this application, and are intended to enable those skilled in the art to understand the content of this application and implement it accordingly. They should not be construed as limiting the scope of protection of this application. All modifications made in accordance with the spirit and essence of the main technical solution of this application should be included within the scope of protection of this application.

Claims

1. An openable electric roof for a rocket power test platform, characterized in that, include: The active cell includes an active cell and a first and a second passive cell driven by the active cell, wherein the active cell is located on the outermost side and the second passive cell is located on the innermost side. A guide rail module, wherein the guide rail module is used for sliding the movable cell, the guide rail module is mounted on a support component, and A driving device is disposed on the active cell, and the active cell is moved between an extended state and a retracted state based on the driving device.

2. The operable electrically operated roof for the rocket propulsion test platform as described in claim 1, characterized in that, The driving device includes a drive motor, and the output end of the drive motor is provided with a gear, which meshes with a rack, and the rack is disposed on the guide rail module.

3. The operable electrically operated roof for the rocket propulsion test platform as described in claim 2, characterized in that, The guide rail module includes a first guide rail component, a second guide rail component, and a third guide rail component arranged in parallel, with the rack disposed on the first guide rail component.

4. The operable electrically operated roof for the rocket propulsion test platform as described in claim 3, characterized in that, The first guide rail component has a groove, and a guide rail is provided at the bottom of the groove. The rack is disposed on the side wall of the first guide rail component, and the gear is located between the guide rail and the side wall and meshes with the rack.

5. The operable electrically operated roof for the rocket propulsion test platform as described in claim 3, characterized in that, The first guide rail component, the second guide rail component, and the third guide rail component are respectively disposed on the guide rail pad, and a reinforcing part is provided on the lower side of the guide rail pad.

6. The operable electrically operated roof for the rocket propulsion test platform as described in claim 3, characterized in that, The length of the first guide rail component is greater than the length of the second guide rail component, and the length of the second guide rail component is greater than the length of the third guide rail component.

7. The operable electrically operated roof for the rocket propulsion test platform as described in claim 2, characterized in that, The drive motor is mounted on the bottom side of the side column of the active cell via a bracket.

8. The operable electrically operated roof for the rocket propulsion test platform as described in claim 1, characterized in that, The active cell includes: main beams, secondary beams, side columns, and bottom columns. The main beam has a certain curvature; One end of the side column is fixed to the main beam via a connector, and the other end is fixed to the bottom column. The side of the bottom column away from the side column is slidably mounted on the first guide rail component. The secondary beam is installed between the two main beams, and a metal shielding plate is provided in the hollow area enclosed by the secondary beam and the main beam.

9. The operable electrically operated roof for the rocket propulsion test platform as described in claim 8, characterized in that, The shield is made of aluminum or aluminum-magnesium alloy and has a thickness of 2-5 mm.

10. The operable electrically operated roof for the rocket propulsion test platform as described in claim 1, characterized in that, The active cell has a sealing strip on its inner side, the first passive cell has sealing strips on both its inner and outer sides, and the second passive cell has a sealing strip on its outer side. The edge column of the first slave unit cell is provided with a brush extending toward the master unit cell side.

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